/* =============================================================
   Site público — Evandro Júnior
   ============================================================= */

:root {
    --primary:   #6366f1;
    --primary-d: #4f46e5;
    --dark:      #0f0c29;
    --dark2:     #1a1740;
    --accent:    #06b6d4;
    --text:      #1e293b;
    --muted:     #64748b;
    --card-radius: 1rem;
}

/* Google Font: Plus Jakarta Sans */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
    --nav-h: 64px;
    --hero-bg: #0a0f1e;
    --nav-bg: rgba(10,15,30,.94);
    --nav-border: rgba(255,255,255,.07);
    --hero-text: #f1f5f9;
    --hero-muted: #8da0bb;
    --hero-dim: #4a607a;
    --hero-accent: #f4b942;
    --hero-accent-h: #d18f1f;
    --hero-border: rgba(255,255,255,.07);
    --hero-border-mid: rgba(255,255,255,.12);
    --t: 220ms;
}

* { font-family: 'Inter', sans-serif; }
body { color: var(--text); background: #fff; }

/* A11y: skip link */
.skip-link {
    position: absolute;
    left: 12px;
    top: -48px;
    z-index: 100000;
    padding: 10px 12px;
    border-radius: 10px;
    background: #0b1220;
    color: #fff;
    text-decoration: none;
    border: 1px solid rgba(255,255,255,.18);
    transition: top 180ms ease;
}
.skip-link:focus { top: 12px; outline: none; box-shadow: 0 0 0 3px rgba(59,130,246,.35); }

/* ---- Navbar ---- */
.site-navbar {
    background: var(--nav-bg) !important;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--nav-border) !important;
    padding: 0;
    height: var(--nav-h);
}
.site-navbar .container { height: 100%; }
.site-navbar .navbar-brand {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: -.02em;
    color: var(--hero-text) !important;
}
.site-navbar .navbar-brand .brand-dot { color: var(--hero-accent); }
.brand-icon-nav { display: none; }
.site-navbar .nav-link {
    color: var(--hero-muted) !important;
    font-size: .875rem;
    font-weight: 500;
    padding: 6px 11px !important;
    border-radius: 6px;
    transition: color var(--t), background var(--t);
}
.site-navbar .nav-link:hover,
.site-navbar .nav-link.active { color: var(--hero-text) !important; }
.site-navbar .nav-link:hover { background: rgba(255,255,255,.04); }
.site-navbar .nav-link.active {
    background: rgba(59,130,246,.12);
    color: #93c5fd !important;
}
.site-navbar .dropdown-menu {
    background: #0e1526;
    border: 1px solid rgba(255,255,255,.1);
    border-radius: 8px;
    margin-top: 4px;
    padding: 6px;
}
.site-navbar .dropdown-item {
    color: var(--hero-muted);
    font-size: .875rem;
    border-radius: 6px;
    padding: 7px 12px;
    transition: background var(--t), color var(--t);
}
.site-navbar .dropdown-item:hover {
    background: rgba(59,130,246,.12);
    color: var(--hero-text);
}
.search-input {
    background: rgba(255,255,255,.05) !important;
    border: 1px solid rgba(255,255,255,.1) !important;
    border-radius: 6px !important;
    color: var(--hero-text) !important;
    font-size: .8125rem;
    transition: border-color var(--t), background var(--t);
}
.search-input::placeholder { color: var(--hero-dim) !important; }
.search-input:focus {
    background: rgba(59,130,246,.08) !important;
    border-color: var(--hero-accent) !important;
    box-shadow: none !important;
    color: var(--hero-text) !important;
}

/* ---- Hero ---- */
.site-hero {
    background-color: var(--hero-bg);
    background-image: radial-gradient(rgba(255,255,255,.022) 1px, transparent 1px);
    background-size: 28px 28px;
    display: flex;
    align-items: stretch;
    overflow: hidden;
}
.site-hero-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 64px 24px;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 440px;
    align-items: center;
    gap: 56px;
}

/* Esquerda */
.site-hero-content { display: flex; flex-direction: column; }
.site-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: .6875rem;
    font-weight: 700;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--hero-accent);
    margin-bottom: 18px;
}
.site-hero-badge::before {
    content: '';
    display: block;
    width: 28px; height: 1px;
    background: var(--hero-accent);
    flex-shrink: 0;
}
.site-hero-name {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: clamp(3rem, 5.5vw, 5.25rem);
    font-weight: 800;
    line-height: 1.0;
    letter-spacing: -.03em;
    color: var(--hero-text);
    margin-bottom: 20px;
}
.site-hero-name-accent { color: var(--hero-accent); }
.site-hero-desc {
    font-size: clamp(.9375rem, 1.4vw, 1.0625rem);
    color: var(--hero-muted);
    line-height: 1.75;
    margin-bottom: 32px;
    max-width: 500px;
}
.site-hero-desc strong { color: var(--hero-text); font-weight: 600; }
.site-hero-actions {
    display: flex;
    gap: 12px;
    margin-bottom: 36px;
    flex-wrap: wrap;
}
.btn-hero-p {
    display: inline-flex; align-items: center; gap: 8px;
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: .9375rem; font-weight: 600; line-height: 1;
    padding: 13px 24px;
    border-radius: 8px;
    border: 2px solid var(--hero-accent);
    background: var(--hero-accent);
    color: #fff;
    text-decoration: none;
    min-height: 46px;
    transition: background var(--t), border-color var(--t), transform 120ms ease;
}
.btn-hero-p:hover { background: var(--hero-accent-h); border-color: var(--hero-accent-h); color: #fff; transform: translateY(-1px); }
.btn-hero-p:active { transform: translateY(0); }
.btn-hero-g {
    display: inline-flex; align-items: center; gap: 8px;
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: .9375rem; font-weight: 600; line-height: 1;
    padding: 13px 24px;
    border-radius: 8px;
    border: 2px solid var(--hero-border-mid);
    background: transparent;
    color: var(--hero-text);
    text-decoration: none;
    min-height: 46px;
    transition: background var(--t), border-color var(--t), transform 120ms ease;
}
.btn-hero-g:hover { background: rgba(255,255,255,.05); border-color: rgba(255,255,255,.18); color: var(--hero-text); }
.site-hero-social { display: flex; align-items: center; gap: 8px; }
.site-hero-social a {
    display: inline-flex; align-items: center; justify-content: center;
    width: 36px; height: 36px;
    border-radius: 6px;
    border: 1px solid var(--hero-border);
    color: var(--hero-muted);
    font-size: 1rem;
    text-decoration: none;
    transition: color var(--t), border-color var(--t), background var(--t);
}
.site-hero-social a:hover {
    color: var(--hero-text);
    border-color: var(--hero-border-mid);
    background: rgba(255,255,255,.05);
}

@media (prefers-reduced-motion: reduce) {
    .btn-hero-p, .btn-hero-g { transition: none; }
}
@media (max-width: 640px) {
    .site-hero-inner { padding: 48px 16px; gap: 36px; }
}

/* ---- Hero Cyberpunk ---- */
.hero-cyber {
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #050514 0%, #0a0628 25%, #120836 50%, #1a0a52 70%, #2d0a6b 85%, #3d0550 100%);
    min-height: 100vh;
}
.hero-cyber::before {
    content: '';
    position: absolute; inset: 0;
    background:
        radial-gradient(ellipse 60% 80% at 55% 60%, rgba(120,40,255,.18) 0%, transparent 70%),
        radial-gradient(ellipse 40% 50% at 80% 40%, rgba(200,0,180,.15) 0%, transparent 60%),
        radial-gradient(ellipse 30% 40% at 10% 70%, rgba(0,200,255,.1) 0%, transparent 60%);
}

/* Grade holográfica */
.hc-grid {
    position: absolute; inset: 0; z-index: 0; pointer-events: none;
    background-image:
        linear-gradient(rgba(99,102,241,.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(99,102,241,.06) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
}

/* Partículas */
.hc-particle {
    position: absolute; border-radius: 50%;
    background: #06b6d4;
    opacity: 0;
    animation: hcFloat linear infinite;
}
@keyframes hcFloat {
    0%   { opacity:0; transform: translateY(0) scale(1); }
    20%  { opacity:.7; }
    80%  { opacity:.4; }
    100% { opacity:0; transform: translateY(-120px) scale(.3); }
}

/* TAG */
.hc-tag {
    display: inline-flex; align-items: center; gap: 8px;
    background: rgba(6,182,212,.1);
    border: 1px solid rgba(6,182,212,.3);
    border-radius: 20px; padding: 5px 16px;
    font-size: 11px; font-weight: 700; letter-spacing: .1em;
    color: #06b6d4; text-transform: uppercase;
}
.hc-dot {
    width: 6px; height: 6px; border-radius: 50%;
    background: #06b6d4;
    box-shadow: 0 0 6px #06b6d4;
    animation: hcPulse 1.5s ease-in-out infinite;
}
@keyframes hcPulse { 0%,100%{opacity:1} 50%{opacity:.3} }

/* Título */
.hc-title {
    font-size: clamp(2.8rem, 6vw, 4.5rem);
    font-weight: 900; color: #fff; line-height: 1.05;
    letter-spacing: -.02em;
    text-shadow: 0 0 40px rgba(99,102,241,.5);
}
.hc-title-accent {
    background: linear-gradient(90deg, #6366f1, #06b6d4, #a855f7);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 0 20px rgba(99,102,241,.6));
}
.hc-subtitle { font-size: 1rem; color: rgba(255,255,255,.65); line-height: 1.7; }
.hc-hl { color: #06b6d4; font-weight: 600; }

/* Botões */
.hc-btn-primary {
    display: inline-flex; align-items: center;
    background: linear-gradient(135deg, #6366f1, #4f46e5);
    border: 1px solid rgba(99,102,241,.5);
    color: #fff; padding: .7rem 1.75rem;
    border-radius: .75rem; font-weight: 600; font-size: .9rem;
    text-decoration: none; transition: all .25s;
    box-shadow: 0 0 20px rgba(99,102,241,.3);
}
.hc-btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(99,102,241,.5); color:#fff; }
.hc-btn-ghost {
    display: inline-flex; align-items: center;
    background: rgba(255,255,255,.05);
    border: 1px solid rgba(255,255,255,.2);
    color: #fff; padding: .7rem 1.75rem;
    border-radius: .75rem; font-weight: 600; font-size: .9rem;
    text-decoration: none; transition: all .25s;
    backdrop-filter: blur(8px);
}
.hc-btn-ghost:hover { background: rgba(255,255,255,.12); color:#fff; border-color:rgba(255,255,255,.4); }

/* Stats */
.hc-stats { display: flex; align-items: center; gap: 20px; }
.hc-stat-num { font-size: 1.6rem; font-weight: 800; color: #06b6d4; line-height: 1; }
.hc-stat-label { font-size: .72rem; color: rgba(255,255,255,.5); font-weight: 500; text-transform: uppercase; letter-spacing: .05em; }
.hc-stat-divider { width: 1px; height: 36px; background: rgba(255,255,255,.15); }

/* Social */
.hc-social {
    display: inline-flex; align-items: center; justify-content: center;
    width: 38px; height: 38px; border-radius: 10px;
    background: rgba(255,255,255,.07);
    border: 1px solid rgba(255,255,255,.15);
    color: rgba(255,255,255,.7);
    font-size: 1.1rem; text-decoration: none;
    transition: all .2s;
    --sc: #fff;
}
.hc-social:hover { color: var(--sc); border-color: var(--sc); background: rgba(255,255,255,.12); box-shadow: 0 0 12px rgba(255,255,255,.15); }

/* ===== FOTO CYBERPUNK ===== */
.hc-photo-wrap {
    position: relative;
    width: 100%; max-width: 560px;
    display: flex; align-items: flex-end; justify-content: center;
    min-height: 520px;
}
.hc-photo-frame {
    position: relative; z-index: 3;
    width: 100%;
    overflow: visible;
    background: transparent;
}
/* Círculo brilhante atrás da foto */
.hc-photo-wrap::before {
    content: '';
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -46%);
    width: 400px; height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(99,102,241,.22) 0%, rgba(6,182,212,.12) 45%, transparent 70%);
    border: 1px solid rgba(99,102,241,.3);
    box-shadow:
        0 0 40px rgba(99,102,241,.25),
        0 0 90px rgba(6,182,212,.12),
        inset 0 0 30px rgba(99,102,241,.08);
    z-index: 2;
    animation: hcCirclePulse 4s ease-in-out infinite;
}
@keyframes hcCirclePulse {
    0%,100% {
        box-shadow: 0 0 40px rgba(99,102,241,.25), 0 0 90px rgba(6,182,212,.12), inset 0 0 30px rgba(99,102,241,.08);
        border-color: rgba(99,102,241,.3);
    }
    50% {
        box-shadow: 0 0 65px rgba(99,102,241,.4), 0 0 140px rgba(6,182,212,.22), inset 0 0 50px rgba(99,102,241,.14);
        border-color: rgba(99,102,241,.55);
    }
}
.hc-photo {
    width: 100%; display: block;
    filter: contrast(1.08) saturate(0.75) brightness(0.92);
    /* fade circular — apaga arestas criando recorte em círculo */
    -webkit-mask-image: radial-gradient(ellipse 78% 88% at 50% 44%, black 45%, rgba(0,0,0,.6) 62%, transparent 80%);
    mask-image: radial-gradient(ellipse 78% 88% at 50% 44%, black 45%, rgba(0,0,0,.6) 62%, transparent 80%);
}
/* Overlay de cor cibernética sobre a foto */
.hc-chrome-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(
        160deg,
        rgba(6,182,212,.15) 0%,
        rgba(99,102,241,.1) 30%,
        transparent 50%,
        rgba(168,85,247,.08) 70%,
        rgba(6,182,212,.12) 100%
    );
    mix-blend-mode: screen;
    pointer-events: none;
}
/* Scanlines — efeito monitor retro */
.hc-scanlines {
    position: absolute; inset: 0; pointer-events: none;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(0,0,0,.12) 2px,
        rgba(0,0,0,.12) 4px
    );
    animation: hcScan 8s linear infinite;
}
@keyframes hcScan { 0%{opacity:.5} 50%{opacity:.15} 100%{opacity:.5} }

/* Linha de scan horizontal */
.hc-scanline-h {
    position: absolute; left: 0; right: 0; height: 2px;
    background: linear-gradient(90deg, transparent, rgba(6,182,212,.8), transparent);
    animation: hcScanH 4s linear infinite;
    pointer-events: none;
}
@keyframes hcScanH {
    0%   { top: -2px; opacity:0; }
    10%  { opacity:1; }
    90%  { opacity:.6; }
    100% { top: 100%; opacity:0; }
}

/* Olhos neon — posicionados relativamente à foto */
.hc-eyes {
    position: absolute;
    top: 36%; left: 50%;
    transform: translateX(-50%);
    display: flex; gap: 38px;
    pointer-events: none; z-index: 5;
    opacity: 0;
    animation: hcEyeReveal 3s ease-out 1.5s forwards;
}
@keyframes hcEyeReveal { 0%{opacity:0} 100%{opacity:1} }
.hc-eye {
    width: 8px; height: 6px; border-radius: 50%;
    background: #00f5ff;
    box-shadow:
        0 0 6px 2px #00f5ff,
        0 0 14px 4px rgba(0,245,255,.6),
        0 0 28px 8px rgba(0,200,255,.3);
    animation: hcEyeGlow 2s ease-in-out infinite;
}
@keyframes hcEyeGlow {
    0%,100% { box-shadow: 0 0 6px 2px #00f5ff, 0 0 14px 4px rgba(0,245,255,.6), 0 0 28px 8px rgba(0,200,255,.3); }
    50%      { box-shadow: 0 0 10px 4px #00f5ff, 0 0 24px 8px rgba(0,245,255,.8), 0 0 48px 16px rgba(0,200,255,.5); }
}

/* Aura pulsante — base da foto */
.hc-aura {
    position: absolute; bottom: 0; left: 50%;
    transform: translateX(-50%);
    width: 100%; height: 380px; z-index: 1;
    background: radial-gradient(ellipse at 50% 100%,
        rgba(99,102,241,.35) 0%,
        rgba(6,182,212,.18) 35%,
        transparent 70%);
    animation: hcAuraPulse 3s ease-in-out infinite;
    pointer-events: none;
}
@keyframes hcAuraPulse { 0%,100%{opacity:.7;transform:translateX(-50%) scaleX(1)} 50%{opacity:1;transform:translateX(-50%) scaleX(1.05)} }


/* Hexágonos de ícone */
.hc-hex {
    position: absolute; z-index: 6;
    width: 44px; height: 44px;
    background: rgba(8,6,30,.88);
    border: 1px solid rgba(6,182,212,.45);
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1rem; color: #06b6d4;
    box-shadow: 0 0 14px rgba(6,182,212,.25);
    backdrop-filter: blur(8px);
    animation: hcHexFloat 4s ease-in-out infinite;
}
.hc-hex-1 { top: 12%; left:  3%; animation-delay: 0s; }
.hc-hex-2 { top: 12%; right: 3%; animation-delay: 1s;   color: #a855f7; border-color: rgba(168,85,247,.4); box-shadow: 0 0 14px rgba(168,85,247,.2); }
.hc-hex-3 { top: 48%; left:  2%; animation-delay: 2s;   color: #10b981; border-color: rgba(16,185,129,.4);  box-shadow: 0 0 14px rgba(16,185,129,.2); }
.hc-hex-4 { top: 48%; right: 2%; animation-delay: 1.5s; color: #f59e0b; border-color: rgba(245,158,11,.4);  box-shadow: 0 0 14px rgba(245,158,11,.2); }
@keyframes hcHexFloat { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-10px)} }

/* HUD labels */
.hc-hud {
    position: absolute; z-index: 7;
    font-size: 9px; font-weight: 700; letter-spacing: .08em;
    color: rgba(6,182,212,.9);
    font-family: 'Courier New', monospace;
    line-height: 1.7;
    background: rgba(0,0,0,.55);
    border-top: 1px solid rgba(6,182,212,.4);
    border-bottom: 1px solid rgba(6,182,212,.4);
    border-left: 3px solid rgba(6,182,212,.7);
    border-right: none;
    border-radius: 2px; padding: 5px 10px;
    backdrop-filter: blur(6px);
}
.hc-hud-tl { top: 22%; left: 8%; }
.hc-hud-br { bottom: 35%; right: 8%; color: rgba(168,85,247,.9); border-left-color: rgba(168,85,247,.7); border-color: rgba(168,85,247,.4); border-left: 3px solid rgba(168,85,247,.7); }


/* Hero legado (mantido para compatibilidade) */
.hero-section {
    background: linear-gradient(135deg, var(--dark) 0%, var(--dark2) 40%, #302b63 100%);
    padding: 6rem 0 5rem; position: relative; overflow: hidden;
}
.hero-title { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 800; color: #fff; line-height: 1.15; }
.hero-subtitle { font-size: 1.15rem; color: rgba(255,255,255,.75); }
.hero-avatar-placeholder {
    width: 200px; height: 200px; border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), #7c3aed);
    display: flex; align-items: center; justify-content: center;
    font-size: 5rem; color: rgba(255,255,255,.9);
    margin: 0 auto;
}
.btn-hero-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-d));
    border: none; color: #fff; padding: .7rem 1.75rem;
    border-radius: .75rem; font-weight: 600; font-size: .95rem;
    transition: transform .2s, box-shadow .2s; text-decoration: none;
}
.btn-hero-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(99,102,241,.4); color: #fff; }
.btn-hero-outline {
    background: transparent; border: 2px solid rgba(255,255,255,.3);
    color: #fff; padding: .7rem 1.75rem;
    border-radius: .75rem; font-weight: 600; font-size: .95rem; text-decoration: none;
}
.btn-hero-outline:hover { background: rgba(255,255,255,.1); color: #fff; }

/* ---- Seções ---- */
.section-title { font-size: 1.75rem; font-weight: 800; }
.section-sub   { color: var(--muted); }
.section-accent { display: inline-block; width: 48px; height: 4px; border-radius: 2px; background: linear-gradient(90deg,var(--primary),var(--accent)); margin-bottom: 1rem; }

/* ---- Cards de Disciplina ---- */
.disc-card {
    border: none; border-radius: var(--card-radius);
    box-shadow: 0 2px 12px rgba(0,0,0,.08);
    transition: transform .25s, box-shadow .25s;
    overflow: hidden;
}
.disc-card:hover { transform: translateY(-6px); box-shadow: 0 12px 30px rgba(99,102,241,.18); }
.disc-card .card-img-top { height: 160px; object-fit: cover; }
.disc-card .disc-icon-placeholder {
    height: 160px; background: linear-gradient(135deg, var(--primary), #7c3aed);
    display: flex; align-items: center; justify-content: center;
    font-size: 3.5rem; color: rgba(255,255,255,.7);
}
.disc-card .badge-faculdade { font-size: .7rem; background: rgba(99,102,241,.1); color: var(--primary); border: 1px solid rgba(99,102,241,.2); }
.disc-card .card-title { font-weight: 700; font-size: 1rem; }

/* ---- Cards de Aula ---- */
.aula-card {
    border: none; border-radius: var(--card-radius);
    box-shadow: 0 2px 10px rgba(0,0,0,.07);
    transition: transform .2s, box-shadow .2s;
}
.aula-card:hover { transform: translateY(-4px); box-shadow: 0 10px 28px rgba(0,0,0,.12); }
.aula-num { font-size: .72rem; font-weight: 700; background: var(--primary); color: #fff; border-radius: .4rem; padding: .2em .5em; }

/* ---- Post cards ---- */
.post-card {
    border: none; border-radius: var(--card-radius);
    box-shadow: 0 2px 10px rgba(0,0,0,.07);
    transition: transform .2s, box-shadow .2s; overflow: hidden;
}
.post-card:hover { transform: translateY(-5px); box-shadow: 0 12px 30px rgba(0,0,0,.12); }
.post-card .card-img-top { height: 180px; object-fit: cover; }
.post-cat-badge { font-size: .7rem; padding: .3em .8em; border-radius: 2rem; font-weight: 600; }
.post-meta { font-size: .8rem; color: var(--muted); }

/* ---- Portfolio ---- */
.port-card {
    border: none; border-radius: var(--card-radius);
    box-shadow: 0 2px 10px rgba(0,0,0,.07);
    overflow: hidden; transition: transform .2s, box-shadow .2s;
}
.port-card:hover { transform: translateY(-5px); box-shadow: 0 12px 28px rgba(0,0,0,.12); }
.port-card .card-img-top { height: 200px; object-fit: cover; }
.port-placeholder { height: 200px; background: linear-gradient(135deg,#1e1b4b,#312e81); display: flex; align-items:center; justify-content:center; font-size:4rem; color:rgba(255,255,255,.5); }

/* ---- Página de disciplina ---- */
.disc-hero { background: linear-gradient(135deg, var(--dark), var(--dark2)); padding: 3.5rem 0; color: #fff; }
.disc-hero .disc-meta span { background: rgba(255,255,255,.1); border-radius: .4rem; padding: .25rem .6rem; font-size: .8rem; }

/* ---- Página de aula ---- */
.aula-content { line-height: 1.85; font-size: 1.05rem; }
.aula-content h2 { font-size: 1.5rem; font-weight: 700; margin-top: 2rem; color: var(--primary-d); }
.aula-content h3 { font-size: 1.2rem; font-weight: 600; margin-top: 1.5rem; }
.aula-content pre { border-radius: .75rem; font-size: .88rem; }
.aula-content ul, .aula-content ol { padding-left: 1.5rem; }
.aula-content li { margin-bottom: .4rem; }
.nav-aulas-btn { border-radius: .75rem; font-weight: 600; }

/* ---- Sidebar ---- */
.sidebar-widget { background: #f8fafc; border-radius: var(--card-radius); padding: 1.25rem; }
.sidebar-widget h6 { font-weight: 700; font-size: .85rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin-bottom: 1rem; }
.tag-cloud a { display: inline-block; background: #f1f5f9; color: var(--text); padding: .3em .8em; border-radius: 2rem; font-size: .8rem; margin: .2rem; text-decoration: none; transition: background .2s; }
.tag-cloud a:hover { background: var(--primary); color: #fff; }

/* ---- Footer ---- */
.site-footer { background: var(--dark); padding: 3.5rem 0 2rem; }
.footer-title { color: rgba(255,255,255,.9); font-weight: 600; font-size: .875rem; margin-bottom: .75rem; }
.footer-links { list-style: none; padding: 0; }
.footer-links li, .footer-links a { color: rgba(255,255,255,.5); font-size: .875rem; text-decoration: none; margin-bottom: .4rem; display: block; transition: color .2s; }
.footer-links a:hover { color: rgba(255,255,255,.85); }
.social-link { color: rgba(255,255,255,.55); font-size: 1.3rem; transition: color .2s, transform .2s; }
.social-link:hover { color: #fff; transform: translateY(-3px); }

/* ---- Breadcrumb ---- */
.breadcrumb-item a { color: var(--primary); text-decoration: none; }
.breadcrumb-section { background: #f8fafc; padding: .75rem 0; border-bottom: 1px solid #e2e8f0; }

/* ================================================================
   Page Hero (headers)
   ================================================================ */
.page-hero {
    padding: 3.5rem 0;
    color: #fff;
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid rgba(255,255,255,.08);
}
.page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(rgba(255,255,255,.08) 1px, transparent 1px);
    background-size: 32px 32px;
    opacity: .18;
    pointer-events: none;
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-weight: 800;
    letter-spacing: -.03em;
    margin: 0 0 .35rem 0;
}
.page-hero p { margin: 0; opacity: .78; }
.page-hero--blog  { background: linear-gradient(135deg, #1e1b4b, #312e81); }
.page-hero--aulas { background: linear-gradient(135deg, #0f0c29, #302b63); }

/* ================================================================
   Quick Cards (home shortcuts)
   ================================================================ */
.quick-card {
    border-radius: 1rem;
    transition: transform .2s ease, box-shadow .2s ease;
    box-shadow: 0 10px 30px rgba(15, 23, 42, .06);
}
.quick-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 18px 48px rgba(15, 23, 42, .14);
}

/* ================================================================
   Tag Pills (post)
   ================================================================ */
.tag-cloud-item {
    display: inline-block;
    background: #f1f5f9;
    color: #1e293b;
    padding: .3em .8em;
    border-radius: 2rem;
    font-size: .8rem;
    margin: .2rem;
    transition: background .2s, color .2s;
}
.tag-cloud-item:hover { background: var(--primary); color: #fff; }

/* ---- Utilidades ---- */
.btn-primary { background: linear-gradient(135deg, var(--primary), var(--primary-d)); border: none; border-radius: .65rem; font-weight: 600; }
.btn-primary:hover { opacity: .9; }
.text-primary { color: var(--primary) !important; }
.bg-primary  { background: var(--primary) !important; }

/* ---- Responsividade ---- */
@media (max-width: 768px) {
    .hero-section { padding: 3.5rem 0 3rem; text-align: center; }
    .hero-avatar, .hero-avatar-placeholder { width: 130px; height: 130px; font-size: 3rem; }
    .hero-title { font-size: 2rem; }
}

/* ================================================================
   Stats inline (hero)
   ================================================================ */
.site-hero-stats-row {
    display: flex;
    align-items: center;
    gap: 0;
    margin-bottom: 32px;
}
.site-hero-stat-inline {
    display: flex;
    flex-direction: column;
    padding: 0 20px 0 0;
}
.site-hero-stat-inline .site-hero-stat-num {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 1.75rem;
    font-weight: 800;
    letter-spacing: -.03em;
    line-height: 1;
    color: var(--hero-accent);
}
.site-hero-stat-inline .site-hero-stat-label {
    font-size: .72rem;
    font-weight: 500;
    color: var(--hero-dim);
    text-transform: uppercase;
    letter-spacing: .07em;
    margin-top: 3px;
}
.site-hero-stat-sep {
    width: 1px;
    height: 32px;
    background: var(--hero-border-mid);
    margin: 0 20px 0 0;
    flex-shrink: 0;
}
@media (max-width: 480px) {
    .site-hero-stats-row { gap: 0; }
    .site-hero-stat-inline { padding-right: 14px; }
    .site-hero-stat-sep   { margin-right: 14px; }
    .site-hero-stat-inline .site-hero-stat-num { font-size: 1.4rem; }
}

/* ================================================================
   VS Code Editor — Hero Component
   ================================================================ */
:root {
    --vsc-bg:        #1e1e1e;
    --vsc-chrome:    #3c3c3c;
    --vsc-tab-bg:    #2d2d2d;
    --vsc-tab-act:   #1e1e1e;
    --vsc-border:    rgba(255,255,255,.08);
    --vsc-ln:        #858585;
    --vsc-status:    #007acc;
    --vsc-font:      'Roboto Mono', 'Fira Code', 'Consolas', monospace;
    --vsc-fz:        .8125rem;
    --vsc-lh:        1.65;
    --vsc-radius:    10px;
}

.vsc-window {
    background: var(--vsc-bg);
    border-radius: var(--vsc-radius);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--vsc-border);
    box-shadow:
        0 0 0 1px rgba(255,255,255,.04),
        0 24px 64px rgba(0,0,0,.55),
        0 8px 24px rgba(0,0,0,.35);
    height: 430px;
    min-height: 430px;
    max-height: 430px;
}

/* Chrome */
.vsc-chrome {
    background: var(--vsc-chrome);
    padding: 10px 14px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
}
.vsc-dots { display: flex; gap: 7px; }
.vsc-dot  {
    width: 12px; height: 12px;
    border-radius: 50%;
    flex-shrink: 0;
}
.vsc-dot-r { background: #ff5f57; }
.vsc-dot-y { background: #febc2e; }
.vsc-dot-g { background: #28c840; }

.vsc-title-bar {
    font-family: var(--vsc-font);
    font-size: .75rem;
    color: #cccccc;
    letter-spacing: .01em;
}

/* Abas */
.vsc-tabs {
    background: var(--vsc-tab-bg);
    display: flex;
    border-bottom: 1px solid rgba(0,0,0,.3);
    flex-shrink: 0;
}
.vsc-tab {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 16px;
    font-family: var(--vsc-font);
    font-size: .72rem;
    color: #8b8b8b;
    cursor: default;
    border-right: 1px solid rgba(0,0,0,.2);
    user-select: none;
    white-space: nowrap;
}
.vsc-tab-active {
    background: var(--vsc-tab-act);
    color: #cccccc;
    border-bottom: 1px solid var(--vsc-status);
    margin-bottom: -1px;
}

/* Editor */
.vsc-editor {
    flex: 1;
    height: 100%;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 12px 0 12px;
    scrollbar-width: thin;
    scrollbar-color: rgba(255,255,255,.1) transparent;
    min-height: 0;
}
.vsc-editor::-webkit-scrollbar { width: 6px; }
.vsc-editor::-webkit-scrollbar-thumb { background: rgba(255,255,255,.12); border-radius: 3px; }

.vsc-lines { padding: 0; }

.vsc-line {
    display: flex;
    align-items: baseline;
    font-family: var(--vsc-font);
    font-size: var(--vsc-fz);
    line-height: var(--vsc-lh);
    min-height: calc(var(--vsc-fz) * var(--vsc-lh));
    padding: 0;
}
.vsc-line-active {
    background: rgba(255,255,255,.04);
}

.vsc-ln {
    display: inline-block;
    min-width: 42px;
    text-align: right;
    padding-right: 16px;
    color: var(--vsc-ln);
    font-size: .72rem;
    user-select: none;
    flex-shrink: 0;
    line-height: inherit;
}
.vsc-code {
    color: #d4d4d4;
    white-space: pre;
    flex: 1;
    padding-right: 12px;
}

/* Cursor piscante */
.vsc-cursor {
    display: inline-block;
    width: 2px;
    background: #aeafad;
    color: transparent;
    animation: vscBlink .9s step-end infinite;
    vertical-align: text-bottom;
}
@keyframes vscBlink { 0%,100%{opacity:1} 50%{opacity:0} }

/* Terminal */
.vsc-terminal {
    background: #1e1e1e;
    border-top: 1px solid rgba(255,255,255,.1);
    max-height: 120px;
    flex-shrink: 0;
    overflow: hidden;
    display: none;
}
.vsc-term-header {
    background: #2d2d2d;
    padding: 4px 14px;
    font-family: var(--vsc-font);
    font-size: .65rem;
    font-weight: 700;
    letter-spacing: .08em;
    color: #cccccc;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(0,0,0,.3);
    flex-shrink: 0;
}
.vsc-term-body {
    padding: 8px 14px;
    overflow-y: auto;
    max-height: 88px;
    scrollbar-width: thin;
    scrollbar-color: rgba(255,255,255,.1) transparent;
}
.vsc-term-line {
    font-family: var(--vsc-font);
    font-size: .75rem;
    line-height: 1.7;
    color: #cccccc;
    white-space: pre-wrap;
    word-break: break-all;
}

/* Status bar */
.vsc-statusbar {
    background: var(--vsc-status);
    padding: 3px 14px;
    display: flex;
    align-items: center;
    gap: 16px;
    flex-shrink: 0;
}
.vsc-statusbar span {
    font-family: var(--vsc-font);
    font-size: .65rem;
    color: rgba(255,255,255,.9);
    display: inline-flex;
    align-items: center;
    gap: 4px;
    white-space: nowrap;
}

/* ── Layout hero — responsivo para o editor ── */
@media (max-width: 1024px) {
    .site-hero-inner { grid-template-columns: 1fr 380px; gap: 48px; }
}
@media (max-width: 860px) {
    .site-hero-inner {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .vsc-window {
        height: 340px;
        min-height: 340px;
        max-height: 340px;
    }
}
@media (max-width: 480px) {
    .vsc-window {
        height: 280px;
        min-height: 280px;
        max-height: 280px;
    }
    .vsc-tab:not(.vsc-tab-active) { display: none; }
}

/* Reduzido-motion: sem cursor piscante nem delays */
@media (prefers-reduced-motion: reduce) {
    .vsc-cursor { animation: none; opacity: 1; }
}

/* ==============================================================
   Interface Refresh V2
   Direcao: editorial-tech premium
   ============================================================== */
:root {
    --primary: #17324d;
    --primary-d: #0d2238;
    --dark: #08111c;
    --dark2: #10283f;
    --accent: #f4b942;
    --accent-2: #19b6c9;
    --surface-0: #f5efe6;
    --surface-1: #fffaf2;
    --surface-2: #edf2f6;
    --surface-3: #dbe4ec;
    --text: #14263b;
    --muted: #5b6d7f;
    --muted-2: #7a8998;
    --border-soft: rgba(20, 38, 59, .12);
    --border-strong: rgba(20, 38, 59, .22);
    --shadow-soft: 0 18px 45px rgba(13, 28, 43, .08);
    --shadow-card: 0 24px 60px rgba(13, 28, 43, .12);
    --shadow-dark: 0 30px 70px rgba(0, 0, 0, .38);
    --radius-lg: 1.5rem;
    --radius-md: 1rem;
    --radius-sm: .8rem;
}

html { scroll-behavior: smooth; }
body {
    background:
        radial-gradient(circle at top left, rgba(25, 182, 201, .08), transparent 32%),
        radial-gradient(circle at top right, rgba(244, 185, 66, .09), transparent 26%),
        linear-gradient(180deg, #fbf7f2 0%, #f5efe6 100%);
    color: var(--text);
}

a { transition: color .18s ease, transform .18s ease, border-color .18s ease, box-shadow .18s ease, background-color .18s ease; }
a:hover { text-decoration: none; }

.site-navbar {
    background: rgba(8, 17, 28, .82) !important;
    border-bottom-color: rgba(255,255,255,.08) !important;
    box-shadow: 0 12px 30px rgba(0,0,0,.18);
}
.site-navbar .navbar-brand {
    letter-spacing: -.04em;
    font-size: 1.3rem;
}
.site-navbar .brand-dot { color: var(--accent); }
.site-navbar .nav-link {
    color: rgba(240, 244, 248, .72) !important;
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: .84rem;
    font-weight: 700;
    letter-spacing: .01em;
    padding: .55rem .9rem !important;
    border-radius: 999px;
}
.site-navbar .nav-link:hover,
.site-navbar .nav-link.active {
    color: #fff !important;
    background: rgba(255,255,255,.08);
}
.site-navbar .dropdown-menu {
    background: rgba(8, 17, 28, .96);
    backdrop-filter: blur(14px);
    border-radius: 1rem;
    box-shadow: 0 26px 54px rgba(0,0,0,.26);
}
.site-navbar .dropdown-item {
    color: rgba(240, 244, 248, .78);
    font-size: .82rem;
    padding: .7rem .9rem;
}
.site-navbar .dropdown-item:hover {
    background: rgba(25, 182, 201, .12);
    color: #fff;
}
.nav-search {
    width: min(100%, 240px);
}
.search-input {
    width: 100%;
    padding: .75rem .95rem !important;
    border-radius: 999px !important;
    border-color: rgba(255,255,255,.1) !important;
    background: rgba(255,255,255,.05) !important;
}
.search-input:focus {
    border-color: rgba(244, 185, 66, .7) !important;
    background: rgba(255,255,255,.08) !important;
    box-shadow: 0 0 0 4px rgba(244, 185, 66, .12) !important;
}

@media (max-width: 991.98px) {
    .site-navbar {
        height: auto;
        min-height: var(--nav-h);
        padding: .45rem 0;
        background: rgba(8, 17, 28, .98) !important;
        backdrop-filter: blur(18px);
        -webkit-backdrop-filter: blur(18px);
    }

    .site-navbar .container {
        height: auto !important;
        min-height: calc(var(--nav-h) - .9rem);
        align-items: center;
        flex-wrap: wrap;
    }

    .site-navbar .navbar-toggler {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 44px;
        height: 44px;
        border-radius: 14px;
        background: rgba(255, 255, 255, .08);
        box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .12);
    }

    .site-navbar .navbar-toggler:focus {
        box-shadow: 0 0 0 4px rgba(244, 185, 66, .18);
    }

    .site-navbar .navbar-collapse {
        flex-basis: 100%;
        width: 100%;
        margin-top: .6rem;
        padding: .85rem;
        border: 1px solid rgba(255, 255, 255, .12);
        border-radius: 1.15rem;
        background:
            radial-gradient(circle at top right, rgba(25, 182, 201, .13), transparent 36%),
            linear-gradient(180deg, rgba(8, 17, 28, .99), rgba(13, 34, 56, .99));
        box-shadow: 0 24px 60px rgba(0, 0, 0, .32);
        max-height: calc(100dvh - var(--nav-h) - 1.4rem);
        overflow-y: auto;
    }

    .site-navbar .navbar-nav {
        gap: .35rem !important;
        padding-bottom: .7rem;
    }

    .site-navbar .nav-link {
        display: flex;
        align-items: center;
        justify-content: space-between;
        width: 100%;
        padding: .85rem .95rem !important;
        border-radius: .9rem;
        color: rgba(240, 244, 248, .88) !important;
    }

    .site-navbar .nav-link:hover,
    .site-navbar .nav-link.active {
        background: rgba(255, 255, 255, .1);
        color: #fff !important;
    }

    .site-navbar .dropdown-menu {
        margin: .25rem 0 .45rem;
        padding: .45rem;
        border-radius: .9rem;
        background: rgba(255, 255, 255, .06);
        border-color: rgba(255, 255, 255, .1);
        box-shadow: none;
    }

    .site-navbar .dropdown-item {
        color: rgba(240, 244, 248, .84);
        border-radius: .75rem;
        padding: .75rem .9rem;
    }

    .site-navbar .nav-search {
        width: 100%;
        padding-top: .75rem;
        border-top: 1px solid rgba(255, 255, 255, .1);
    }

    .site-navbar .search-input {
        min-height: 46px;
        background: rgba(255, 255, 255, .09) !important;
    }
}

.site-hero {
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(circle at 16% 18%, rgba(244, 185, 66, .14), transparent 20%),
        radial-gradient(circle at 82% 22%, rgba(25, 182, 201, .16), transparent 22%),
        linear-gradient(135deg, #08111c 0%, #0d2238 55%, #133758 100%);
}
.site-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
    background-size: 40px 40px;
    opacity: .22;
    mask-image: radial-gradient(circle at center, rgba(0,0,0,.95) 40%, transparent 88%);
    pointer-events: none;
}
.site-hero::after {
    content: '';
    position: absolute;
    inset: auto 8% -140px auto;
    width: 340px;
    height: 340px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(244, 185, 66, .18) 0%, rgba(244, 185, 66, 0) 70%);
    pointer-events: none;
}
.site-hero-inner {
    position: relative;
    z-index: 1;
    max-width: 1260px;
    padding: 88px 24px 72px;
    grid-template-columns: minmax(0, 1.08fr) minmax(380px, .92fr);
    gap: 64px;
}
.site-hero-badge {
    padding: .45rem .9rem;
    border-radius: 999px;
    background: rgba(255,255,255,.08);
    border: 1px solid rgba(255,255,255,.12);
    width: fit-content;
    letter-spacing: .12em;
}
.site-hero-badge::before { display: none; }
.site-hero-name {
    max-width: 10ch;
    margin-bottom: 1.15rem;
    font-size: clamp(3.35rem, 6vw, 6rem);
}
.site-hero-name-accent {
    color: var(--accent);
    text-shadow: 0 0 28px rgba(244, 185, 66, .28);
}
.site-hero-desc {
    max-width: 620px;
    color: rgba(232, 240, 246, .78);
    font-size: 1.02rem;
}
.site-hero-actions { margin-bottom: 1.85rem; }
.btn-hero-p,
.btn-hero-g {
    min-height: 50px;
    padding: 14px 22px;
    border-radius: 999px;
    font-family: 'Plus Jakarta Sans', sans-serif;
}
.btn-hero-p {
    background: linear-gradient(135deg, var(--accent), #d18f1f);
    border-color: transparent;
    color: #102238;
    box-shadow: 0 18px 42px rgba(244, 185, 66, .22);
}
.btn-hero-p:hover {
    background: linear-gradient(135deg, #ffd27c, #d18f1f);
    color: #102238;
}
.btn-hero-g {
    background: rgba(255,255,255,.06);
    border-color: rgba(255,255,255,.18);
}
.btn-hero-g:hover {
    background: rgba(255,255,255,.1);
    border-color: rgba(255,255,255,.28);
}
.site-hero-stats-row {
    margin-bottom: 1.4rem;
    padding: 1rem 1.2rem;
    border-radius: 1.2rem;
    background: rgba(255,255,255,.05);
    border: 1px solid rgba(255,255,255,.1);
    width: fit-content;
}
.site-hero-stat-inline { padding-right: 1.1rem; }
.site-hero-stat-inline .site-hero-stat-num {
    color: #fff;
    font-size: 1.9rem;
}
.site-hero-stat-inline .site-hero-stat-label {
    color: rgba(232,240,246,.64);
}
.site-hero-stat-sep {
    background: rgba(255,255,255,.14);
    margin-right: 1.1rem;
}
.site-hero-social a {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: rgba(255,255,255,.05);
}
.site-hero-social a:hover {
    border-color: rgba(244, 185, 66, .55);
    color: var(--accent);
}
.vsc-window {
    border-radius: 1.45rem;
    border: 1px solid rgba(255,255,255,.08);
    box-shadow: var(--shadow-dark);
}
.vsc-editor { background: linear-gradient(180deg, #151922 0%, #1a1f29 100%); }
.vsc-statusbar {
    background: linear-gradient(90deg, #17324d, #1f4b73);
}

.bg-light {
    background: transparent !important;
}

.section-accent {
    width: 56px;
    height: 5px;
    margin-bottom: .9rem;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
}
.section-title {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: clamp(1.9rem, 3vw, 2.4rem);
    font-weight: 800;
    letter-spacing: -.04em;
    color: var(--text);
}
.section-sub {
    color: var(--muted);
    max-width: 58ch;
    margin: .8rem auto 0;
    font-size: 1rem;
}

.quick-card,
.disc-card,
.aula-card,
.post-card,
.port-card,
.sidebar-widget {
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-lg);
    background: linear-gradient(180deg, rgba(255,255,255,.96) 0%, rgba(251,247,240,.98) 100%);
    box-shadow: var(--shadow-soft);
}
.quick-card:hover,
.disc-card:hover,
.aula-card:hover,
.post-card:hover,
.port-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-card);
    border-color: rgba(23, 50, 77, .18);
}
.home-access-intro {
    max-width: 64ch;
    margin-bottom: 2rem;
}
.quick-card--wide {
    display: flex;
    flex-direction: column;
    gap: .9rem;
    text-align: left;
}
.quick-card-icon {
    width: 58px;
    height: 58px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 16px;
    background: color-mix(in srgb, var(--quick-color, var(--primary)) 12%, white);
    color: var(--quick-color, var(--primary));
    box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--quick-color, var(--primary)) 18%, white);
}
.quick-card-title {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 1.02rem;
    letter-spacing: -.02em;
}
.result-card {
    border-radius: 1rem;
}
.disc-card .card-body,
.aula-card .card-body,
.post-card .card-body,
.port-card .card-body {
    padding: 1.35rem;
}
.disc-card .card-title,
.post-card h5,
.port-card h5,
.aula-card h6 {
    font-family: 'Plus Jakarta Sans', sans-serif;
    letter-spacing: -.02em;
}
.post-card .card-img-top,
.port-card .card-img-top,
.disc-card .card-img-top {
    border-top-left-radius: calc(var(--radius-lg) - 2px);
    border-top-right-radius: calc(var(--radius-lg) - 2px);
}
.post-cat-badge,
.disc-card .badge-faculdade,
.badge.bg-light.text-dark.border {
    background: rgba(23, 50, 77, .08) !important;
    border: 1px solid rgba(23, 50, 77, .12) !important;
    color: var(--primary) !important;
    font-weight: 700;
}
.aula-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 28px;
    padding: .2rem .65rem;
    border-radius: 999px;
    background: rgba(25, 182, 201, .12);
    color: #0c7280;
    font-weight: 700;
    font-size: .74rem;
    letter-spacing: .03em;
}

.breadcrumb-section {
    background: transparent;
    border-bottom: 1px solid rgba(20, 38, 59, .08);
}
.breadcrumb-item a { color: var(--primary); }

.page-hero,
.disc-hero {
    position: relative;
    overflow: hidden;
    padding: 4.25rem 0 3.3rem;
    color: #fff;
    background:
        radial-gradient(circle at 15% 20%, rgba(244, 185, 66, .12), transparent 18%),
        radial-gradient(circle at 84% 22%, rgba(25, 182, 201, .16), transparent 20%),
        linear-gradient(135deg, #08111c 0%, #0d2238 52%, #17486d 100%);
}
.page-hero::before,
.disc-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(rgba(255,255,255,.1) 1px, transparent 1px);
    background-size: 24px 24px;
    opacity: .12;
}
.page-hero .container,
.disc-hero .container { position: relative; z-index: 1; }
.page-hero h1,
.disc-hero h1 {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: clamp(2.3rem, 4vw, 3.4rem);
    font-weight: 800;
    letter-spacing: -.05em;
}
.page-hero p,
.disc-hero p,
.disc-hero .disc-meta span {
    color: rgba(233, 240, 245, .78);
}
.disc-hero .disc-meta span {
    background: rgba(255,255,255,.08);
    border: 1px solid rgba(255,255,255,.12);
    border-radius: 999px;
    padding: .38rem .8rem;
}

.sidebar-widget {
    padding: 1.35rem;
    border-radius: var(--radius-lg);
    position: relative;
}
.sidebar-widget h6 {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: .8rem;
    letter-spacing: .11em;
    text-transform: uppercase;
    color: var(--muted-2);
}
.tag-cloud a,
.tag-cloud-item {
    background: rgba(23, 50, 77, .08);
    color: var(--primary);
    border: 1px solid rgba(23, 50, 77, .12);
}
.tag-cloud a:hover,
.tag-cloud-item:hover {
    background: var(--primary);
    color: #fff;
}
.article-toc-links {
    display: flex;
    flex-direction: column;
    gap: .55rem;
}
.article-toc-links a {
    display: block;
    padding: .65rem .85rem;
    border-radius: .8rem;
    background: rgba(23, 50, 77, .05);
    border: 1px solid rgba(23, 50, 77, .08);
    color: var(--primary);
    font-size: .82rem;
    text-decoration: none;
}
.article-toc-links a:hover {
    background: rgba(23, 50, 77, .1);
}

.aula-content {
    font-size: 1.04rem;
    line-height: 1.95;
    color: var(--text);
}
.aula-content p,
.aula-content ul,
.aula-content ol,
.aula-content blockquote {
    margin-bottom: 1.15rem;
}
.aula-content h2,
.aula-content h3,
.aula-content h4 {
    font-family: 'Plus Jakarta Sans', sans-serif;
    letter-spacing: -.02em;
}
.aula-content h2 {
    color: var(--primary);
    font-size: 1.65rem;
    margin-top: 2.25rem;
}
.aula-content h3 {
    color: #21496f;
    font-size: 1.25rem;
}
.aula-content blockquote {
    padding: 1rem 1.2rem;
    border-left: 4px solid var(--accent);
    background: rgba(244, 185, 66, .08);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.aula-content pre {
    background: #0f1722;
    border: 1px solid rgba(255,255,255,.08);
    padding: 1rem 1.1rem;
    box-shadow: inset 0 0 0 1px rgba(255,255,255,.03);
}

.pagination {
    gap: .45rem;
    margin-top: 2rem;
}
.pagination .page-link {
    border: 1px solid var(--border-soft);
    border-radius: 999px;
    color: var(--primary);
    min-width: 42px;
    text-align: center;
    background: rgba(255,255,255,.88);
    box-shadow: 0 8px 18px rgba(13, 28, 43, .05);
}
.pagination .page-item.active .page-link,
.pagination .page-link:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

.site-footer {
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(circle at top right, rgba(25, 182, 201, .12), transparent 22%),
        linear-gradient(135deg, #08111c 0%, #0d2238 56%, #10283f 100%);
    padding: 4rem 0 2rem;
}
.site-footer::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
    background-size: 32px 32px;
    opacity: .16;
}
.site-footer .container { position: relative; z-index: 1; }
.site-footer-mark {
    width: 52px;
    height: 52px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--accent), #d18f1f);
    color: #102238;
    font-size: 1.3rem;
}
.site-footer-tag {
    color: rgba(228, 236, 241, .6);
    font-size: .78rem;
}
.site-footer-copy {
    color: rgba(228, 236, 241, .74);
    max-width: 34ch;
}
.site-footer-badge {
    display: inline-flex;
    gap: .6rem;
    align-items: flex-start;
    padding: .9rem 1rem;
    border-radius: 1rem;
    background: rgba(255,255,255,.05);
    border: 1px solid rgba(255,255,255,.08);
    color: rgba(228, 236, 241, .76);
    font-size: .83rem;
}
.site-footer-badge i { color: var(--accent); }
.footer-title {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: .78rem;
    text-transform: uppercase;
    letter-spacing: .12em;
    color: rgba(228, 236, 241, .56);
}
.footer-links a,
.footer-links li {
    color: rgba(228, 236, 241, .76);
}
.footer-links a:hover { color: var(--accent); }
.footer-cta {
    display: inline-flex;
    align-items: center;
    gap: .7rem;
    padding: .95rem 1rem;
    border-radius: 1rem;
    background: rgba(255,255,255,.05);
    border: 1px solid rgba(255,255,255,.08);
    color: #fff;
    text-decoration: none;
}
.footer-cta:hover {
    border-color: rgba(244, 185, 66, .36);
    color: #fff;
}
.social-link {
    width: 40px;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: rgba(255,255,255,.05);
    border: 1px solid rgba(255,255,255,.08);
    color: rgba(255,255,255,.8);
}
.social-link:hover {
    color: var(--accent);
    border-color: rgba(244, 185, 66, .36);
    transform: translateY(-2px);
}

.empty-state {
    padding: 3rem 1.5rem;
    border-radius: var(--radius-lg);
    border: 1px dashed rgba(20, 38, 59, .18);
    background: rgba(255,255,255,.58);
}

@media (max-width: 991px) {
    .nav-search { width: 100%; margin-top: 1rem; }
    .site-hero-inner { grid-template-columns: 1fr; padding-top: 64px; }
    .site-hero-name { max-width: none; }
    .site-hero-stats-row { width: 100%; justify-content: space-between; }
}

@media (max-width: 767px) {
    .site-hero-actions { flex-direction: column; align-items: stretch; }
    .btn-hero-p,
    .btn-hero-g { justify-content: center; width: 100%; }
    .section-title { font-size: 1.8rem; }
    .site-footer { padding-top: 3.4rem; }
}

/* ==============================================================
   Study, Catalog and Contact Refinements
   ============================================================== */
.page-hero-copy {
    max-width: 64ch;
}
.page-hero-actions,
.page-hero-metrics,
.catalog-hero-metrics {
    display: flex;
    flex-wrap: wrap;
    gap: .8rem;
    margin-top: 1.4rem;
}
.page-hero-metric,
.catalog-metric {
    display: inline-flex;
    align-items: center;
    gap: .55rem;
    padding: .75rem .95rem;
    border-radius: 1rem;
    background: rgba(255,255,255,.08);
    border: 1px solid rgba(255,255,255,.12);
    color: rgba(240, 246, 251, .88);
    font-size: .9rem;
}
.page-hero-action {
    display: inline-flex;
    align-items: center;
    gap: .55rem;
    padding: .86rem 1.1rem;
    border-radius: 999px;
    border: 1px solid rgba(255,255,255,.16);
    background: rgba(255,255,255,.06);
    color: #fff;
    text-decoration: none;
    font-weight: 700;
}
.page-hero-action:hover {
    color: #fff;
    border-color: rgba(244, 185, 66, .4);
    background: rgba(255,255,255,.1);
}
.page-hero-action--primary {
    background: linear-gradient(135deg, var(--accent), #d18f1f);
    border-color: transparent;
    color: #102238;
    box-shadow: 0 16px 40px rgba(244, 185, 66, .22);
}
.page-hero-action--primary:hover {
    color: #102238;
}

.catalog-shell {
    padding: 3rem 0 4rem;
}
.catalog-section-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.5rem;
}
.catalog-section-title h2,
.catalog-section-title h3 {
    margin: 0;
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-weight: 800;
    letter-spacing: -.04em;
    color: var(--text);
}
.catalog-lead {
    max-width: 62ch;
    color: var(--muted);
    font-size: 1rem;
}
.catalog-grid-card,
.contact-card,
.contact-form-card,
.search-panel,
.portfolio-detail-card,
.study-section-card,
.study-sidecard,
.study-hero-panel {
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-lg);
    background: linear-gradient(180deg, rgba(255,255,255,.96) 0%, rgba(251,247,240,.98) 100%);
    box-shadow: var(--shadow-soft);
}
.catalog-grid-card {
    height: 100%;
    padding: 1.35rem;
    position: relative;
    overflow: hidden;
}
.catalog-grid-card::before,
.study-hero-panel::before,
.contact-card::before,
.contact-form-card::before,
.portfolio-detail-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(244,185,66,.08), transparent 35%, rgba(25,182,201,.06));
    pointer-events: none;
}
.catalog-grid-card:hover,
.contact-card:hover,
.contact-form-card:hover,
.portfolio-detail-card:hover,
.study-section-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-card);
}
.catalog-grid-card__top,
.portfolio-detail-card__head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1rem;
}
.catalog-grid-card__icon {
    width: 56px;
    height: 56px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 18px;
    background: rgba(23,50,77,.07);
    color: var(--primary);
    font-size: 1.3rem;
    box-shadow: inset 0 0 0 1px rgba(23,50,77,.08);
}
.catalog-grid-card__eyebrow,
.study-kicker {
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    width: fit-content;
    padding: .45rem .8rem;
    border-radius: 999px;
    background: rgba(23,50,77,.06);
    color: var(--primary);
    font-size: .72rem;
    font-weight: 800;
    letter-spacing: .08em;
    text-transform: uppercase;
}
.catalog-grid-card__title,
.contact-card h3,
.contact-form-card h3,
.study-hero-panel h1,
.study-section-title,
.study-sidecard h3,
.portfolio-detail-card h3 {
    font-family: 'Plus Jakarta Sans', sans-serif;
    letter-spacing: -.03em;
    color: var(--text);
}
.catalog-grid-card__title {
    margin: .85rem 0 .45rem;
    font-size: 1.18rem;
    font-weight: 800;
}
.catalog-grid-card__desc,
.contact-card p,
.contact-form-card p,
.study-section-copy,
.study-hero-copy,
.portfolio-detail-card p {
    color: var(--muted);
}
.catalog-grid-card__meta {
    display: flex;
    flex-wrap: wrap;
    gap: .55rem;
    margin-top: 1rem;
}
.catalog-chip,
.stack-chip {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    padding: .38rem .7rem;
    border-radius: 999px;
    background: rgba(23,50,77,.07);
    border: 1px solid rgba(23,50,77,.1);
    color: var(--primary);
    font-size: .74rem;
    font-weight: 700;
}
.catalog-card-link {
    text-decoration: none;
    color: inherit;
}
.catalog-card-link:hover {
    color: inherit;
}
.catalog-empty,
.lesson-empty-state,
.search-empty {
    padding: 3rem 1.4rem;
    border-radius: var(--radius-lg);
    border: 1px dashed rgba(20,38,59,.18);
    background: rgba(255,255,255,.68);
    text-align: center;
    color: var(--muted);
}
.catalog-empty i,
.lesson-empty-state i,
.search-empty i {
    font-size: 2.6rem;
    opacity: .45;
    color: var(--primary);
}

.study-shell {
    padding: 3rem 0 4rem;
}
.study-hero-panel {
    position: relative;
    padding: 1.8rem;
    margin-bottom: 1.4rem;
    overflow: hidden;
}
.study-hero-panel h1 {
    margin: 1rem 0 .85rem;
    font-size: clamp(2rem, 3vw, 2.8rem);
    font-weight: 800;
}
.study-hero-copy {
    max-width: 58ch;
    font-size: 1rem;
}
.study-summary {
    margin-top: 1.25rem;
    padding-top: 1.25rem;
    border-top: 1px solid rgba(20,38,59,.08);
}
.study-summary-label {
    margin-bottom: .45rem;
    color: var(--muted-2);
    font-size: .72rem;
    font-weight: 800;
    letter-spacing: .1em;
    text-transform: uppercase;
}
.study-summary-copy {
    font-size: 1.04rem;
    color: var(--text);
    line-height: 1.75;
}
.study-meta-list,
.study-actions,
.study-side-list,
.study-outline,
.result-meta-list,
.portfolio-meta-grid {
    display: flex;
    flex-wrap: wrap;
    gap: .65rem;
}
.study-meta-list {
    margin-top: 1.2rem;
}
.study-meta-list span,
.study-meta-list a {
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    padding: .55rem .8rem;
    border-radius: 999px;
    background: rgba(23,50,77,.06);
    border: 1px solid rgba(23,50,77,.09);
    color: var(--primary);
    text-decoration: none;
    font-size: .82rem;
    font-weight: 600;
}
.study-actions {
    margin-top: 1.2rem;
}
.study-actions a {
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    min-height: 46px;
    padding: .78rem 1rem;
    border-radius: 999px;
    background: rgba(255,255,255,.84);
    border: 1px solid rgba(20,38,59,.1);
    color: var(--text);
    text-decoration: none;
    font-weight: 700;
}
.study-actions a:hover {
    color: var(--primary);
    border-color: rgba(25,182,201,.28);
}
.study-actions .study-actions__primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-d));
    color: #fff;
    box-shadow: 0 16px 40px rgba(23,50,77,.18);
}
.study-actions .study-actions__primary:hover {
    color: #fff;
}
.study-jump-nav {
    display: flex;
    flex-wrap: wrap;
    gap: .75rem;
    margin: 0 0 1.35rem;
}
.study-jump-nav a {
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    padding: .72rem .9rem;
    border-radius: 1rem;
    border: 1px solid rgba(20,38,59,.09);
    background: rgba(255,255,255,.8);
    color: var(--text);
    text-decoration: none;
    font-size: .86rem;
    font-weight: 700;
}
.study-jump-nav a:hover {
    border-color: rgba(25,182,201,.28);
    color: var(--primary);
    transform: translateY(-2px);
}
.study-section-card {
    position: relative;
    padding: 1.45rem;
    margin-bottom: 1.5rem;
}
.study-section-card--flush {
    padding: 0;
    overflow: hidden;
}
.study-section-card--flat:hover {
    transform: none;
}
.study-section-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1rem;
}
.study-section-title {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 800;
}
.study-section-copy {
    margin: .4rem 0 0;
    max-width: 62ch;
}
.study-section-meta {
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    padding: .45rem .7rem;
    border-radius: 999px;
    background: rgba(23,50,77,.07);
    color: var(--primary);
    font-size: .74rem;
    font-weight: 700;
}
.study-side-stack {
    position: sticky;
    top: 88px;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.study-sidecard {
    position: relative;
    overflow: hidden;
    padding: 1.2rem;
}
.study-sidecard h3 {
    margin: 0 0 .9rem;
    font-size: 1.02rem;
    font-weight: 800;
}
.study-sidecard p,
.study-sidecard li,
.study-sidecard a,
.study-sidecard dd,
.study-sidecard dt {
    font-size: .92rem;
}
.study-side-list,
.study-outline {
    margin: 0;
    padding: 0;
    list-style: none;
    flex-direction: column;
}
.study-side-list li,
.study-outline li {
    display: flex;
    align-items: flex-start;
    gap: .65rem;
    padding: .72rem 0;
    border-top: 1px solid rgba(20,38,59,.08);
}
.study-side-list li:first-child,
.study-outline li:first-child {
    border-top: 0;
    padding-top: 0;
}
.study-outline a {
    color: var(--text);
    text-decoration: none;
    font-weight: 600;
}
.study-outline a:hover {
    color: var(--primary);
}
.study-progress {
    display: grid;
    gap: .75rem;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}
.study-progress .study-progress__metric {
    padding: .9rem;
    border-radius: 1rem;
    background: rgba(23,50,77,.05);
    border: 1px solid rgba(23,50,77,.08);
}
.study-progress .study-progress__value {
    display: block;
    font-size: 1.45rem;
    font-weight: 800;
    color: var(--primary);
}
.study-progress .study-progress__label {
    display: block;
    margin-top: .2rem;
    color: var(--muted);
    font-size: .78rem;
}
.study-resource-card {
    display: flex;
    align-items: center;
    gap: .9rem;
    padding: .95rem 1rem;
    border-radius: 1rem;
    border: 1px solid rgba(20,38,59,.08);
    background: rgba(255,255,255,.82);
}
.study-resource-card + .study-resource-card {
    margin-top: .75rem;
}
.study-resource-icon {
    width: 46px;
    height: 46px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    background: rgba(23,50,77,.07);
    color: var(--primary);
    font-size: 1.15rem;
}
.study-nav-grid {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}
.study-nav-card {
    min-height: 100%;
    padding: 1.2rem;
    border-radius: var(--radius-lg);
    text-decoration: none;
    border: 1px solid rgba(20,38,59,.1);
    background: rgba(255,255,255,.85);
    color: var(--text);
    box-shadow: var(--shadow-soft);
}
.study-nav-card:hover {
    color: var(--text);
    transform: translateY(-4px);
}
.study-nav-card--next {
    background: linear-gradient(135deg, var(--primary), var(--primary-d));
    color: #fff;
    box-shadow: 0 20px 50px rgba(23,50,77,.2);
}
.study-nav-card--next:hover {
    color: #fff;
}
.study-nav-card__label {
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    margin-bottom: .5rem;
    font-size: .8rem;
    font-weight: 800;
    letter-spacing: .08em;
    text-transform: uppercase;
}
.study-nav-card__title {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.5;
}
.study-interactive-entry {
    cursor: pointer;
    border-radius: 1.15rem;
    background: linear-gradient(135deg, #0d1117 0%, #161b22 60%, #0f1923 100%);
    border: 1px solid rgba(88,166,255,.25);
    padding: 1.8rem;
    display: flex;
    align-items: center;
    gap: 1.4rem;
    box-shadow: 0 0 30px rgba(88,166,255,.08);
    transition: border-color .2s, box-shadow .2s, transform .2s;
    position: relative;
    overflow: hidden;
}
.study-interactive-entry:hover {
    border-color: rgba(88,166,255,.55);
    box-shadow: 0 0 50px rgba(88,166,255,.18);
    transform: translateY(-2px);
}
.study-interactive-entry__icon {
    flex-shrink: 0;
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: linear-gradient(135deg,#1e3a5f,#0f2744);
    border: 1px solid rgba(88,166,255,.4);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 20px rgba(88,166,255,.2);
}
.study-interactive-entry__icon i {
    font-size: 1.8rem;
    color: #58a6ff;
}
.study-interactive-entry__eyebrow {
    color: #58a6ff;
    font-size: .75rem;
    font-weight: 700;
    letter-spacing: .1em;
    text-transform: uppercase;
    margin-bottom: .3rem;
}
.study-interactive-entry__title {
    color: #e6edf3;
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: .25rem;
}
.study-interactive-entry__copy {
    color: #8b949e;
    font-size: .875rem;
}
.study-interactive-entry__arrow {
    flex-shrink: 0;
    color: #58a6ff;
    font-size: 1.4rem;
    opacity: .7;
}
.study-interactive-entry__glow {
    position: absolute;
    top: -40px;
    right: -40px;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(88,166,255,.12) 0%, transparent 70%);
    pointer-events: none;
}

.contact-shell {
    padding: 3rem 0 4rem;
}
.contact-form-card,
.contact-card {
    position: relative;
    padding: 1.55rem;
    overflow: hidden;
}
.contact-form-card h3,
.contact-card h3 {
    margin-bottom: .4rem;
    font-size: 1.28rem;
    font-weight: 800;
}
.contact-form-card .form-control,
.contact-form-card .form-select,
.contact-form-card textarea {
    min-height: 52px;
    border-radius: 1rem;
    border: 1px solid rgba(20,38,59,.12);
    background: rgba(255,255,255,.88);
}
.contact-form-card textarea {
    min-height: 180px;
    resize: vertical;
}
.contact-form-card .form-control:focus,
.contact-form-card textarea:focus {
    border-color: rgba(25,182,201,.44);
    box-shadow: 0 0 0 4px rgba(25,182,201,.12);
}
.contact-method {
    display: flex;
    align-items: center;
    gap: .9rem;
    padding: .95rem 1rem;
    border-radius: 1rem;
    border: 1px solid rgba(20,38,59,.08);
    background: rgba(255,255,255,.74);
    text-decoration: none;
    color: var(--text);
}
.contact-method:hover {
    color: var(--primary);
    border-color: rgba(25,182,201,.26);
}
.contact-method__icon {
    width: 46px;
    height: 46px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    background: rgba(23,50,77,.07);
    color: var(--primary);
    font-size: 1.15rem;
}

.search-panel {
    padding: 1.2rem;
    margin-bottom: 2rem;
}
.search-form-shell {
    display: flex;
    flex-wrap: wrap;
    gap: .85rem;
    align-items: center;
}
.search-form-shell .input-group {
    flex: 1 1 420px;
}
.search-form-shell .form-control,
.search-form-shell .btn {
    min-height: 52px;
    border-radius: 1rem !important;
}
.search-group {
    margin-top: 2rem;
}
.search-group-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1rem;
}
.search-group-header h2 {
    margin: 0;
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 1.22rem;
    font-weight: 800;
    letter-spacing: -.03em;
}
.result-card {
    height: 100%;
    padding: 1.2rem;
    border: 1px solid var(--border-soft);
    border-radius: 1.2rem;
    background: linear-gradient(180deg, rgba(255,255,255,.96) 0%, rgba(251,247,240,.98) 100%);
    box-shadow: var(--shadow-soft);
}
.result-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card);
}
.result-kind {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    margin-bottom: .7rem;
    padding: .34rem .65rem;
    border-radius: 999px;
    background: rgba(23,50,77,.07);
    color: var(--primary);
    font-size: .72rem;
    font-weight: 800;
    letter-spacing: .06em;
    text-transform: uppercase;
}

.portfolio-meta-grid {
    gap: .9rem;
}
.portfolio-meta-card {
    min-width: 150px;
    padding: .95rem 1rem;
    border-radius: 1rem;
    background: rgba(255,255,255,.08);
    border: 1px solid rgba(255,255,255,.12);
    color: rgba(240,246,251,.86);
}
.portfolio-meta-card strong {
    display: block;
    color: #fff;
    font-size: 1.05rem;
}
.portfolio-detail-card {
    position: relative;
    padding: 1.4rem;
    overflow: hidden;
}
.portfolio-detail-list {
    margin: 0;
}
.portfolio-detail-list dt {
    margin-bottom: .3rem;
    color: var(--muted-2);
    font-size: .74rem;
    font-weight: 800;
    letter-spacing: .08em;
    text-transform: uppercase;
}
.portfolio-detail-list dd {
    margin-bottom: 1rem;
    color: var(--text);
}

@media (max-width: 991px) {
    .study-side-stack {
        position: static;
    }
}

@media (max-width: 767px) {
    .study-shell,
    .catalog-shell,
    .contact-shell {
        padding-top: 2.2rem;
    }
    .study-hero-panel,
    .study-section-card,
    .study-sidecard,
    .catalog-grid-card,
    .contact-card,
    .contact-form-card,
    .portfolio-detail-card,
    .search-panel {
        border-radius: 1.1rem;
        padding: 1.1rem;
    }
    .study-nav-grid,
    .study-progress {
        grid-template-columns: 1fr;
    }
    .study-interactive-entry {
        flex-direction: column;
        align-items: flex-start;
    }
    .page-hero-actions,
    .page-hero-metrics,
    .catalog-hero-metrics,
    .study-jump-nav,
    .study-actions {
        flex-direction: column;
        align-items: stretch;
    }
    .page-hero-action,
    .study-actions a,
    .study-jump-nav a {
        width: 100%;
        justify-content: center;
    }
}

/* ==============================================================
   Lesson Filter Navigation
   ============================================================== */
.lesson-filter-panel {
    position: sticky;
    top: 88px;
    padding: 1.25rem;
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-lg);
    background: linear-gradient(180deg, rgba(255,255,255,.98) 0%, rgba(249,244,236,.98) 100%);
    box-shadow: var(--shadow-soft);
}
.lesson-filter-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1rem;
}
.lesson-filter-title {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: -.04em;
    color: var(--text);
}
.lesson-filter-copy {
    color: var(--muted);
    font-size: .92rem;
    line-height: 1.7;
}
.lesson-filter-clear {
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    padding: .7rem .9rem;
    border-radius: 999px;
    background: rgba(23,50,77,.06);
    border: 1px solid rgba(23,50,77,.1);
    color: var(--primary);
    text-decoration: none;
    font-size: .8rem;
    font-weight: 700;
    white-space: nowrap;
}
.lesson-filter-clear:hover {
    color: #fff;
    background: var(--primary);
    border-color: var(--primary);
}
.lesson-filter-summary {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: .65rem;
    margin-bottom: 1rem;
}
.lesson-filter-stat {
    padding: .85rem .75rem;
    border-radius: 1rem;
    background: rgba(23,50,77,.05);
    border: 1px solid rgba(23,50,77,.08);
    text-align: center;
}
.lesson-filter-stat__value {
    display: block;
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--primary);
}
.lesson-filter-stat__label {
    display: block;
    margin-top: .2rem;
    color: var(--muted);
    font-size: .72rem;
}
.lesson-filter-current {
    margin-bottom: 1rem;
    padding: .85rem .95rem;
    border-radius: 1rem;
    background: linear-gradient(135deg, rgba(23,50,77,.08), rgba(25,182,201,.08));
    border: 1px solid rgba(23,50,77,.08);
}
.lesson-filter-current__label {
    display: block;
    margin-bottom: .2rem;
    color: var(--muted-2);
    font-size: .7rem;
    font-weight: 800;
    letter-spacing: .1em;
    text-transform: uppercase;
}
.lesson-filter-scroll {
    display: flex;
    flex-direction: column;
    gap: .85rem;
    max-height: calc(100vh - 180px);
    overflow-y: auto;
    padding-right: .15rem;
}
.lesson-filter-scroll::-webkit-scrollbar {
    width: 8px;
}
.lesson-filter-scroll::-webkit-scrollbar-thumb {
    background: rgba(23,50,77,.15);
    border-radius: 999px;
}
.lesson-filter-group {
    border: 1px solid rgba(20,38,59,.08);
    border-radius: 1.15rem;
    overflow: hidden;
    background: rgba(255,255,255,.76);
}
.lesson-filter-group.is-active {
    border-color: rgba(25,182,201,.26);
    box-shadow: inset 0 0 0 1px rgba(25,182,201,.1);
}
.lesson-filter-toggle,
.lesson-filter-course-toggle {
    width: 100%;
    border: 0;
    background: transparent;
    text-align: left;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .85rem;
}
.lesson-filter-toggle {
    padding: .95rem 1rem;
}
.lesson-filter-toggle:hover,
.lesson-filter-course-toggle:hover {
    background: rgba(23,50,77,.04);
}
.lesson-filter-toggle__meta,
.lesson-filter-course-toggle__meta {
    display: flex;
    align-items: center;
    gap: .8rem;
    min-width: 0;
}
.lesson-filter-toggle__icon {
    width: 44px;
    height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 15px;
    background: rgba(23,50,77,.07);
    color: var(--primary);
    font-size: 1rem;
    flex-shrink: 0;
}
.lesson-filter-toggle__label strong {
    display: block;
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: .98rem;
    font-weight: 800;
    letter-spacing: -.02em;
    color: var(--text);
}
.lesson-filter-toggle__label small {
    display: block;
    margin-top: .2rem;
    color: var(--muted);
    font-size: .76rem;
}
.lesson-filter-toggle__chevron,
.lesson-filter-course-toggle__aside {
    display: inline-flex;
    align-items: center;
    gap: .6rem;
    color: var(--muted);
    flex-shrink: 0;
}
.lesson-filter-toggle__chevron {
    transition: transform .2s ease;
}
.lesson-filter-body {
    padding: 0 .85rem .85rem;
    border-top: 1px solid rgba(20,38,59,.06);
    background: linear-gradient(180deg, rgba(245,248,251,.7) 0%, rgba(255,255,255,.2) 100%);
}
.lesson-filter-link,
.lesson-filter-course-link,
.lesson-filter-discipline-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .8rem;
    text-decoration: none;
    color: var(--text);
    border: 1px solid transparent;
    transition: background-color .16s ease, border-color .16s ease, transform .16s ease;
}
.lesson-filter-link {
    margin-top: .85rem;
    padding: .8rem .9rem;
    border-radius: 1rem;
    background: rgba(255,255,255,.78);
}
.lesson-filter-link:hover,
.lesson-filter-course-link:hover,
.lesson-filter-discipline-link:hover {
    color: var(--primary);
    border-color: rgba(25,182,201,.18);
    background: rgba(25,182,201,.06);
}
.lesson-filter-link.is-current,
.lesson-filter-course-link.is-current,
.lesson-filter-discipline-link.is-current {
    background: rgba(23,50,77,.09);
    border-color: rgba(23,50,77,.12);
    color: var(--primary);
    font-weight: 700;
}
.lesson-filter-pill,
.lesson-filter-count-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 30px;
    height: 30px;
    padding: 0 .55rem;
    border-radius: 999px;
    background: rgba(23,50,77,.08);
    color: var(--primary);
    font-size: .74rem;
    font-weight: 800;
}
.lesson-filter-course {
    margin-top: .75rem;
    border: 1px solid rgba(20,38,59,.08);
    border-radius: 1rem;
    overflow: hidden;
    background: rgba(255,255,255,.7);
}
.lesson-filter-course.is-active {
    border-color: rgba(25,182,201,.2);
}
.lesson-filter-course-toggle {
    padding: .8rem .9rem;
}
.lesson-filter-course-toggle__meta i {
    color: #159d82;
    font-size: .95rem;
}
.lesson-filter-course-toggle__meta span {
    font-size: .85rem;
    font-weight: 700;
    color: #24415e;
}
.lesson-filter-course-toggle__aside i {
    transition: transform .2s ease;
}
.lesson-filter-course-body {
    padding: 0 .75rem .75rem;
    border-top: 1px solid rgba(20,38,59,.06);
    background: rgba(245,248,251,.62);
}
.lesson-filter-course-link {
    margin-top: .75rem;
    padding: .72rem .85rem;
    border-radius: .95rem;
    background: rgba(255,255,255,.74);
    font-size: .8rem;
}
.lesson-filter-discipline-link {
    margin-top: .55rem;
    padding: .72rem .85rem;
    border-radius: .95rem;
    background: rgba(255,255,255,.58);
    font-size: .8rem;
}
.lesson-filter-discipline-link__label {
    display: inline-flex;
    align-items: center;
    gap: .55rem;
    min-width: 0;
}
.lesson-filter-discipline-link__label i {
    color: #4f46e5;
    font-size: .9rem;
    flex-shrink: 0;
}
.lesson-filter-discipline-link__label span {
    white-space: normal;
    line-height: 1.45;
}

@media (max-width: 991px) {
    .lesson-filter-panel {
        position: static;
    }
    .lesson-filter-scroll {
        max-height: none;
    }
}

@media (max-width: 575px) {
    .lesson-filter-panel {
        padding: 1rem;
    }
    .lesson-filter-head {
        flex-direction: column;
        align-items: stretch;
    }
    .lesson-filter-summary {
        grid-template-columns: 1fr;
    }
}