:root {
    --yellow: #F1CB0B;
    --yellow-soft: #FFF4C2;
    --gray: #848484;
    --red: #BF2131;
    --green: #93C93D;
    --blue: #3EA9CE;
    --bg: #FAF7F0;
    --bg-card: #ffffff;
    --bg-dark: #14171F;
    --bg-dark-2: #1d2129;
    --line: rgba(0,0,0,0.10);
    --line-soft: rgba(0,0,0,0.06);
    --text: #14171F;
    --text-dim: #555a66;
    --text-mute: #8b94a6;
    --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  }
  [data-theme="dark"] {
    --yellow-soft: rgba(241,203,11,0.16);
    --bg: #0e1118;
    --bg-card: #181c25;
    --bg-dark: #0a0c12;
    --bg-dark-2: #14171F;
    --line: rgba(255,255,255,0.10);
    --line-soft: rgba(255,255,255,0.05);
    --text: #f0f1f4;
    --text-dim: #99a0b0;
    --text-mute: #5b6477;
  }
  * { box-sizing: border-box; }
  html, body { margin: 0; padding: 0; }
  body {
    font-family: 'Roboto', system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 17px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
  }
  a { color: inherit; text-decoration: none; }
  button { font-family: inherit; cursor: pointer; }
  img { max-width: 100%; display: block; }

  /* ===== NAV ===== */
  .nav {
    position: sticky; top: 0; z-index: 50;
    background: color-mix(in srgb, var(--bg) 88%, transparent);
    backdrop-filter: blur(14px) saturate(140%);
    border-bottom: 1px solid var(--line-soft);
  }
  .nav-inner {
    max-width: 1280px; margin: 0 auto;
    padding: 20px 32px; display: flex; align-items: center; gap: 40px;
  }
  .logo {
    display: flex; align-items: center; gap: 12px;
    font-weight: 900; font-size: 22px; letter-spacing: -0.025em;
  }
  .logo-img {
    height: 40px; width: auto; display: block;
  }
  .logo-mark {
    position: relative; width: 38px; height: 38px;
    background: var(--yellow); border-radius: 12px;
    display: grid; place-items: center;
    font-weight: 900; color: #14171F; font-size: 20px;
    box-shadow: 0 4px 14px -4px rgba(241,203,11,0.5);
  }
  .logo-mark::after {
    content: ''; position: absolute; bottom: -3px; right: -3px;
    width: 12px; height: 12px; background: var(--red); border-radius: 50%;
    box-shadow: -8px 0 0 var(--green), -16px 0 0 var(--blue);
  }
  .logo-text .dot { color: var(--yellow); font-weight: 900; }
  .nav ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 32px; }
  .nav li a {
    font-size: 14.5px; color: var(--text-dim); font-weight: 500;
    transition: color .15s; position: relative;
  }
  .nav li a:hover { color: var(--text); }
  .nav-cta { margin-left: auto; display: flex; gap: 12px; align-items: center; }
  .theme-toggle {
    width: 40px; height: 40px; border-radius: 10px;
    background: transparent; border: 1.5px solid var(--line);
    color: var(--text-dim); display: grid; place-items: center;
    transition: all .15s;
  }
  .theme-toggle:hover { color: var(--text); border-color: var(--text); }

  .btn {
    border: none; padding: 13px 22px; border-radius: 10px;
    font-weight: 600; font-size: 14.5px; transition: transform .15s, box-shadow .15s, background .15s;
    display: inline-flex; align-items: center; gap: 8px;
  }
  .btn-primary { background: var(--text); color: var(--bg); }
  .btn-primary:hover { transform: translateY(-1px); }
  .btn-yellow { background: var(--yellow); color: #14171F; box-shadow: 0 6px 22px -6px var(--yellow); }
  .btn-yellow:hover { transform: translateY(-1px); box-shadow: 0 10px 28px -6px var(--yellow); }
  .btn-ghost {
    background: transparent; color: var(--text);
    border: 1.5px solid var(--line);
  }
  .btn-ghost:hover { border-color: var(--text); }
  .btn-large { padding: 17px 30px; font-size: 15.5px; }
  .btn-arrow { transition: transform .2s; }
  .btn:hover .btn-arrow { transform: translateX(3px); }

  /* ===== HERO ===== */
  .hero {
    max-width: 1280px; margin: 0 auto; padding: 80px 32px 100px;
    position: relative;
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 60px;
    align-items: center;
  }
  .hero-logo { display: inline-block; margin-bottom: 28px; }
  .hero-logo-img { height: 48px; width: auto; }

  .hero-eyebrow {
    display: inline-flex; align-items: center; gap: 10px;
    font-family: var(--mono); font-size: 12.5px;
    padding: 8px 14px; background: var(--yellow-soft);
    color: #6a5800; border-radius: 999px;
    margin-bottom: 32px;
    font-weight: 500;
  }
  [data-theme="dark"] .hero-eyebrow { color: var(--yellow); }
  .hero-eyebrow .pulse {
    width: 8px; height: 8px; border-radius: 50%; background: var(--red);
    animation: pulse 1.6s ease-in-out infinite;
  }
  @keyframes pulse { 50% { opacity: 0.3; } }
  .hero h1 {
    font-size: clamp(46px, 7vw, 104px); font-weight: 900;
    line-height: 0.96; letter-spacing: -0.04em;
    margin: 0 0 28px; max-width: 1000px;
  }
  .hero h1 .highlight {
    position: relative; display: inline-block;
    color: var(--text);
  }
  .hero h1 .highlight::before {
    content: ''; position: absolute; inset: auto 0 4%; height: 30%;
    background: var(--yellow); z-index: -1;
    border-radius: 4px;
    transform: skewX(-4deg);
  }
  .hero h1 em {
    font-style: normal; color: var(--blue);
    font-family: 'JetBrains Mono', monospace;
    font-weight: 700; letter-spacing: -0.04em;
  }
  .hero-grid {
    display: grid; grid-template-columns: 1.4fr 1fr; gap: 60px;
    align-items: end; margin-top: 16px;
  }
  .hero-lead {
    font-size: 21px; color: var(--text-dim); margin: 0;
    max-width: 580px; line-height: 1.55;
  }
  .hero-ctas { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 36px; }
  .hero-aside {
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: 18px; padding: 26px;
    position: relative;
  }
  .hero-aside-eyebrow {
    font-family: var(--mono); font-size: 11px;
    color: var(--text-mute); letter-spacing: 0.1em;
    text-transform: uppercase; margin-bottom: 16px;
  }
  .hero-aside-card {
    background: var(--bg-dark); color: white;
    border-radius: 12px; padding: 20px; margin-bottom: 18px;
    font-family: var(--mono); font-size: 13px; line-height: 1.85;
    position: relative; overflow: hidden;
  }
  .hero-aside-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: linear-gradient(90deg, var(--red), var(--yellow), var(--green), var(--blue));
  }
  .ha-line { display: block; }
  .ha-c { color: #6b7280; }
  .ha-k { color: var(--blue); }
  .ha-s { color: var(--yellow); }
  .ha-f { color: var(--green); }
  .typing-bar {
    height: 1.1em; width: 8px; background: var(--yellow);
    display: inline-block; vertical-align: -2px;
    animation: blink 1s steps(2) infinite;
  }
  @keyframes blink { 50% { opacity: 0; } }
  .hero-stats {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px;
    padding: 18px 0 0; border-top: 1px solid var(--line);
  }
  .hero-stats .s-num {
    font-size: 28px; font-weight: 900; letter-spacing: -0.02em;
    line-height: 1; display: block;
  }
  .hero-stats .s-num .y { color: var(--text); }
  .hero-stats .s-lab {
    font-size: 11px; color: var(--text-mute); margin-top: 4px;
    letter-spacing: 0.05em; text-transform: uppercase;
    font-family: var(--mono);
  }

  .hero-shapes {
    position: absolute; top: 40px; right: -40px;
    pointer-events: none; z-index: -1;
  }
  .shape { position: absolute; }
  .shape.s1 {
    width: 80px; height: 80px; background: var(--red);
    border-radius: 50%; top: 20px; right: 300px; opacity: 0.9;
    animation: float 8s ease-in-out infinite;
  }
  .shape.s2 {
    width: 50px; height: 50px; background: var(--green);
    border-radius: 8px; top: 180px; right: 30px;
    transform: rotate(20deg);
    animation: float 10s ease-in-out infinite 1s;
  }
  .shape.s3 {
    width: 30px; height: 30px; background: var(--blue);
    border-radius: 50%; top: 540px; right: 380px; opacity: 0.85;
    animation: float 7s ease-in-out infinite 2s;
  }
  @keyframes float {
    0%, 100% { transform: translateY(0) rotate(var(--r, 0)); }
    50% { transform: translateY(-20px) rotate(var(--r, 0)); }
  }

  /* ===== MARQUEE ===== */
  .marquee {
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    padding: 24px 0;
    overflow: hidden;
    background: var(--text); color: var(--bg);
  }
  [data-theme="dark"] .marquee { background: var(--yellow); color: #14171F; }
  .marquee-track {
    display: flex; gap: 60px; white-space: nowrap;
    font-family: var(--mono); font-size: 18px; font-weight: 500;
    letter-spacing: -0.02em;
  }
  .marquee-track > span { display: flex; align-items: center; gap: 60px; }
  .marquee-track .dot {
    width: 10px; height: 10px; border-radius: 50%;
    background: var(--yellow);
    display: inline-block;
  }
  [data-theme="dark"] .marquee-track .dot { background: var(--red); }
  @keyframes marq { to { transform: translateX(-50%); } }

  /* ===== SECTION SHELL ===== */
  section { position: relative; }
  .container { max-width: 1280px; margin: 0 auto; padding: 0 32px; }
  .sec-eyebrow {
    font-family: var(--mono); font-size: 12.5px;
    text-transform: uppercase; letter-spacing: 0.15em;
    display: inline-flex; align-items: center; gap: 12px;
    padding: 6px 12px; background: var(--yellow-soft);
    color: #6a5800; border-radius: 6px;
    margin-bottom: 22px; font-weight: 500;
  }
  [data-theme="dark"] .sec-eyebrow { color: var(--yellow); }
  .sec-eyebrow.on-dark {
    background: rgba(241,203,11,0.18); color: var(--yellow);
  }
  .sec-title {
    font-size: clamp(40px, 5.5vw, 76px); font-weight: 900;
    margin: 0 0 20px; letter-spacing: -0.035em; line-height: 0.98;
    max-width: 900px;
  }
  .sec-title em { font-style: normal; color: var(--blue); font-family: 'JetBrains Mono', monospace; font-weight: 700; }
  .sec-lead { font-size: 19px; color: var(--text-dim); max-width: 680px; margin: 0; line-height: 1.55; }
  .sec-head { margin-bottom: 64px; }

  /* ===== WHY ===== */
  .why { padding: 120px 0; }
  .why-grid {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px;
  }
  .why-card {
    background: var(--bg-card); border: 1px solid var(--line);
    padding: 40px 36px; border-radius: 20px;
    display: flex; gap: 28px; align-items: start;
    transition: transform .2s;
  }
  .why-card:hover { transform: translateY(-4px); }
  .why-num {
    font-family: var(--mono); font-size: 56px; font-weight: 900;
    line-height: 0.9; color: var(--c, var(--yellow));
    letter-spacing: -0.04em;
    width: 80px; flex-shrink: 0;
  }
  .why-card h3 { font-size: 24px; margin: 0 0 12px; font-weight: 700; letter-spacing: -0.015em; }
  .why-card p { font-size: 15.5px; color: var(--text-dim); margin: 0; line-height: 1.6; }

  /* ===== COURSES ===== */
  .courses { padding: 120px 0; background: var(--bg-dark); color: white; }
  .courses .sec-eyebrow { background: rgba(241,203,11,0.18); color: var(--yellow); }
  .courses .sec-title { color: white; }
  .courses .sec-lead { color: rgba(255,255,255,0.65); }
  .age-tabs {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px;
    margin-bottom: 48px;
  }
  .age-tab {
    background: transparent; border: 1px solid rgba(255,255,255,0.15);
    color: rgba(255,255,255,0.7); padding: 18px 20px;
    border-radius: 14px; text-align: left;
    transition: all .2s; font-family: inherit;
    display: flex; flex-direction: column; gap: 6px;
  }
  .age-tab:hover { border-color: rgba(255,255,255,0.4); color: white; }
  .age-tab.active {
    background: var(--c, var(--yellow)); color: #14171F;
    border-color: transparent;
  }
  .age-tab .age-num {
    font-family: var(--mono); font-size: 13px; font-weight: 700;
    letter-spacing: 0.05em; opacity: 0.85;
  }
  .age-tab .age-label {
    font-size: 18px; font-weight: 700; letter-spacing: -0.01em;
  }
  .course-panel { display: none; }
  .course-panel.active {
    display: grid; grid-template-columns: 1.2fr 1fr; gap: 60px;
  }
  .course-panel .course-head { margin-bottom: 32px; }
  .course-trail-pill {
    display: inline-block; font-family: var(--mono); font-size: 12px;
    padding: 6px 12px; border: 1px solid rgba(255,255,255,0.2);
    border-radius: 999px; color: rgba(255,255,255,0.7);
    margin-bottom: 18px;
  }
  .course-title {
    font-size: clamp(36px, 4vw, 56px); font-weight: 900;
    margin: 0 0 16px; letter-spacing: -0.03em; line-height: 1.02;
    color: white;
  }
  .course-desc { font-size: 17.5px; color: rgba(255,255,255,0.7); margin: 0 0 28px; line-height: 1.6; }
  .course-skills { list-style: none; margin: 0 0 28px; padding: 0; display: grid; gap: 12px; }
  .course-skills li {
    display: flex; align-items: start; gap: 14px; font-size: 15.5px;
    color: rgba(255,255,255,0.92);
  }
  .course-skills li::before {
    content: ''; flex-shrink: 0; width: 18px; height: 18px;
    border-radius: 50%; background: var(--c, var(--yellow));
    margin-top: 4px;
    display: grid; place-items: center;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23141719' stroke-width='3'><polyline points='20 6 9 17 4 12'/></svg>");
    background-repeat: no-repeat; background-position: center;
  }
  .course-langs { display: flex; gap: 8px; flex-wrap: wrap; }
  .lang-chip {
    padding: 8px 14px; background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.12); border-radius: 8px;
    font-family: var(--mono); font-size: 12.5px; font-weight: 500;
    color: rgba(255,255,255,0.85);
    display: inline-flex; align-items: center; gap: 8px;
  }
  .lang-chip .ld { width: 9px; height: 9px; border-radius: 50%; }

  .course-card-big {
    background: var(--bg-dark-2);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 20px; padding: 36px; min-height: 460px;
    display: flex; flex-direction: column; justify-content: space-between;
    position: relative; overflow: hidden;
  }
  .course-card-big::before {
    content: ''; position: absolute; inset: 0 0 auto 0; height: 4px;
    background: var(--c, var(--yellow));
  }
  .course-card-big .bigshape {
    position: absolute; top: 30px; right: -30px;
    width: 200px; height: 200px;
    background: var(--c, var(--yellow));
    opacity: 0.1; border-radius: 50%;
  }
  .course-illustration {
    flex: 1; display: grid; place-items: center; position: relative; z-index: 1;
  }
  .course-icon-big {
    font-family: var(--mono); font-size: 96px; font-weight: 900;
    color: var(--c, var(--yellow)); line-height: 1;
    letter-spacing: -0.04em;
  }
  .course-modules-list {
    margin-top: 28px; display: grid; gap: 8px; position: relative; z-index: 1;
  }
  .course-mod {
    background: rgba(0,0,0,0.25); border: 1px solid rgba(255,255,255,0.06);
    padding: 14px 16px; border-radius: 10px;
    display: flex; align-items: center; justify-content: space-between;
    font-size: 14px; color: rgba(255,255,255,0.85);
  }
  .course-mod .mn {
    font-family: var(--mono); color: var(--c, var(--yellow)); font-weight: 700;
    font-size: 12px;
  }

  /* ===== METHOD ===== */
  .method {
    padding: 120px 0;
    background: var(--bg-dark);
    color: white;
  }
  .method .sec-eyebrow { background: rgba(241,203,11,0.18); color: var(--yellow); }
  .method .sec-title { color: white; }
  .method .sec-lead { color: rgba(255,255,255,0.65); }
  .method-grid {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
  }
  .method-step {
    position: relative; padding: 36px 28px;
    background: var(--bg-dark-2);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 18px;
  }
  .method-step::before {
    content: attr(data-step);
    position: absolute; top: -20px; left: 28px;
    font-family: var(--mono); font-size: 64px; font-weight: 900;
    color: var(--c, var(--yellow)); line-height: 1;
    letter-spacing: -0.04em;
  }
  .method-step h4 {
    font-size: 22px; margin: 36px 0 12px; font-weight: 700;
    letter-spacing: -0.015em; color: white;
  }
  .method-step p {
    font-size: 15px; color: rgba(255,255,255,0.7);
    margin: 0; line-height: 1.6;
  }

  /* ===== PROJECTS ===== */
  .projects { padding: 120px 0; background: var(--bg-card); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
  .projects-grid {
    display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px;
    grid-auto-rows: 220px;
  }
  .proj {
    border-radius: 16px; overflow: hidden;
    background: var(--bg);
    border: 1px solid var(--line);
    position: relative;
    transition: transform .25s;
    cursor: pointer;
  }
  .proj:hover { transform: translateY(-3px); }
  .proj:nth-child(1) { grid-column: span 3; grid-row: span 2; }
  .proj:nth-child(2) { grid-column: span 3; grid-row: span 1; }
  .proj:nth-child(3) { grid-column: span 2; grid-row: span 1; }
  .proj:nth-child(4) { grid-column: span 1; grid-row: span 1; }
  .proj:nth-child(5) { grid-column: span 3; grid-row: span 1; }
  .proj:nth-child(6) { grid-column: span 3; grid-row: span 1; }
  .proj-cover {
    position: absolute; inset: 0;
    background: linear-gradient(135deg, var(--c1, var(--yellow)), var(--c2, var(--red)));
    overflow: hidden;
  }
  .proj-cover::after {
    content: ''; position: absolute; inset: 0;
    background-image:
      linear-gradient(rgba(255,255,255,0.10) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255,255,255,0.10) 1px, transparent 1px);
    background-size: 28px 28px;
    mix-blend-mode: overlay;
  }
  .proj-name {
    position: absolute; top: 20px; left: 24px;
    font-family: var(--mono); font-size: 13px;
    color: rgba(255,255,255,0.92); font-weight: 500;
    letter-spacing: 0.02em; z-index: 2;
  }
  .proj-overlay {
    position: absolute; bottom: 0; left: 0; right: 0;
    padding: 18px 24px 20px;
    background: linear-gradient(transparent, rgba(0,0,0,0.6));
    color: white; z-index: 2;
  }
  .proj-overlay h4 {
    font-size: 18px; margin: 0 0 4px; font-weight: 700; letter-spacing: -0.01em;
  }
  .proj:nth-child(1) .proj-overlay h4 { font-size: 26px; }
  .proj-overlay .meta { font-family: var(--mono); font-size: 11.5px; opacity: 0.85; }

  /* ===== TEACHERS ===== */
  .teachers { padding: 120px 0; }
  .teachers-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
  .teacher {
    background: var(--bg-card); border: 1px solid var(--line);
    border-radius: 18px; overflow: hidden; transition: transform .2s;
  }
  .teacher:hover { transform: translateY(-4px); }
  .teacher-img {
    aspect-ratio: 4/5; position: relative; overflow: hidden;
    background: linear-gradient(160deg, var(--c, var(--yellow)) 0%, color-mix(in srgb, var(--c, var(--yellow)) 40%, #14171F) 100%);
  }
  .teacher-img::after {
    content: attr(data-initials);
    position: absolute; inset: 0; display: grid; place-items: center;
    font-family: var(--mono); font-size: 64px; font-weight: 900;
    color: rgba(255,255,255,0.85); letter-spacing: -0.04em;
  }
  .teacher-img::before {
    content: ''; position: absolute; inset: 0;
    background-image: linear-gradient(rgba(255,255,255,0.08) 1px, transparent 1px);
    background-size: 100% 18px;
    mix-blend-mode: overlay;
  }
  .teacher-body { padding: 22px 24px 26px; }
  .teacher-body h4 { font-size: 19px; margin: 0 0 4px; font-weight: 700; letter-spacing: -0.015em; }
  .teacher-body .role { font-family: var(--mono); font-size: 12px; color: var(--c, var(--yellow)); margin-bottom: 10px; }
  .teacher-body p { font-size: 13.5px; color: var(--text-dim); margin: 0; line-height: 1.55; }

  /* ===== TESTIMONIALS ===== */
  .testimonials { padding: 120px 0; background: var(--bg-card); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
  .testi-wrap { position: relative; }
  .testi-stage { position: relative; min-height: 280px; }
  .testi-card {
    position: absolute; inset: 0; opacity: 0;
    transition: opacity .35s; pointer-events: none;
    display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center;
  }
  .testi-card.active { opacity: 1; pointer-events: auto; position: relative; }
  .testi-quote {
    font-size: clamp(24px, 2.4vw, 34px); font-weight: 500;
    line-height: 1.3; letter-spacing: -0.018em; margin: 0 0 28px;
  }
  .testi-quote::before {
    content: '"'; font-family: Georgia, serif; font-size: 80px; line-height: 0;
    color: var(--yellow); margin-right: 4px; vertical-align: -20px;
  }
  .testi-author { display: flex; align-items: center; gap: 14px; }
  .testi-author .av {
    width: 52px; height: 52px; border-radius: 50%;
    background: var(--c, var(--yellow)); display: grid; place-items: center;
    font-weight: 800; color: #14171F; font-size: 18px;
  }
  .testi-author .who { font-size: 15px; font-weight: 600; }
  .testi-author .who small {
    display: block; font-weight: 400; color: var(--text-mute); font-size: 13px; margin-top: 2px;
  }
  .testi-visual {
    aspect-ratio: 4/3; border-radius: 20px; position: relative; overflow: hidden;
    background: linear-gradient(135deg, var(--c, var(--yellow)) 0%, color-mix(in srgb, var(--c, var(--yellow)) 40%, var(--bg-dark)) 100%);
  }
  .testi-visual::after {
    content: ''; position: absolute; inset: 0;
    background-image:
      radial-gradient(circle 100px at 30% 40%, rgba(255,255,255,0.25), transparent 60%),
      radial-gradient(circle 80px at 75% 70%, rgba(0,0,0,0.18), transparent 60%);
  }
  .testi-visual::before {
    content: '★'; position: absolute; right: 30px; bottom: 24px;
    font-size: 80px; color: rgba(255,255,255,0.85); line-height: 1;
  }
  .testi-controls { margin-top: 32px; display: flex; gap: 10px; align-items: center; }
  .testi-dot {
    width: 36px; height: 3px; border-radius: 3px;
    background: var(--line); border: none; padding: 0; cursor: pointer;
    transition: background .15s, width .15s;
  }
  .testi-dot.active { background: var(--text); width: 56px; }

  /* ===== PRICING ===== */
  .pricing { padding: 120px 0; }
  .price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; max-width: 1100px; margin: 0 auto; }
  .price {
    background: var(--bg-card); border: 1px solid var(--line);
    border-radius: 20px; padding: 40px 36px;
    display: flex; flex-direction: column;
    position: relative;
  }
  .price.featured {
    background: var(--text); color: var(--bg);
    border-color: var(--text);
    transform: translateY(-12px);
  }
  .price.featured .price-feat-list li { color: rgba(255,255,255,0.92); }
  [data-theme="dark"] .price.featured { background: var(--yellow); color: #14171F; border-color: var(--yellow); }
  [data-theme="dark"] .price.featured .price-feat-list li { color: rgba(0,0,0,0.85); }
  .featured-tag {
    position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
    background: var(--yellow); color: #14171F;
    padding: 6px 14px; border-radius: 999px;
    font-family: var(--mono); font-size: 11px; font-weight: 700;
    letter-spacing: 0.05em;
  }
  .price h4 { font-family: var(--mono); font-size: 13px; margin: 0 0 6px; text-transform: uppercase; letter-spacing: 0.1em; opacity: 0.7; font-weight: 500; }
  .price .price-amt {
    font-size: 56px; font-weight: 900; margin: 0 0 6px;
    line-height: 1; letter-spacing: -0.035em;
  }
  .price .price-amt small { font-size: 18px; font-weight: 500; opacity: 0.7; }
  .price .period { font-size: 14px; opacity: 0.7; margin-bottom: 28px; }
  .price-feat-list { list-style: none; margin: 0 0 32px; padding: 24px 0 0; border-top: 1px solid currentColor; opacity: 0.95; display: grid; gap: 14px; flex: 1; }
  .price.featured .price-feat-list { border-color: rgba(255,255,255,0.2); }
  [data-theme="dark"] .price.featured .price-feat-list { border-color: rgba(0,0,0,0.15); }
  .price-feat-list li { font-size: 14.5px; display: flex; gap: 12px; color: var(--text-dim); }
  .price-feat-list li::before {
    content: '✓'; flex-shrink: 0; font-weight: 700; color: var(--green);
  }
  .price.featured .price-feat-list li::before { color: var(--yellow); }
  [data-theme="dark"] .price.featured .price-feat-list li::before { color: var(--text); }

  /* ===== UNITS ===== */
  .units {
    padding: 120px 0;
    background: rgba(191,33,49,0.06);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    position: relative;
    overflow: hidden;
  }
  .units::before {
    content: ''; position: absolute; top: 15%; right: -100px;
    width: 250px; height: 250px; background: var(--red);
    border-radius: 50%; opacity: 0.08; pointer-events: none;
    animation: float 14s ease-in-out infinite;
  }
  .units::after {
    content: ''; position: absolute; bottom: 10%; left: -80px;
    width: 180px; height: 180px; background: var(--red);
    border-radius: 50%; opacity: 0.06; pointer-events: none;
    animation: float 16s ease-in-out infinite 1.5s;
  }
  .units .container { position: relative; z-index: 1; }
  .units-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
  .unit {
    background: var(--bg); border: 1px solid var(--line);
    border-radius: 16px; padding: 32px;
    transition: transform .2s, border-color .2s;
    position: relative;
  }
  .unit:hover { transform: translateY(-3px); border-color: var(--text); }
  .unit-flag {
    position: absolute; top: 24px; right: 24px;
    width: 14px; height: 14px; border-radius: 50%; background: var(--green);
    box-shadow: 0 0 12px var(--green);
  }
  .unit-city { font-family: var(--mono); font-size: 12px; color: var(--text-mute); letter-spacing: 0.05em; text-transform: uppercase; margin-bottom: 12px; }
  .unit h4 { font-size: 20px; margin: 0 0 12px; font-weight: 700; letter-spacing: -0.015em; }
  .unit .addr { font-size: 14px; color: var(--text-dim); margin: 0 0 18px; line-height: 1.55; }
  .unit .phone-row { display: flex; justify-content: space-between; align-items: center; padding-top: 14px; border-top: 1px solid var(--line-soft); }
  .unit .phone { font-family: var(--mono); font-size: 13.5px; font-weight: 600; }
  .unit .visit { font-size: 12.5px; font-weight: 600; color: var(--blue); }

  /* Unidade única (Ipatinga) */
  .unit-featured {
    display: grid; grid-template-columns: 1fr 1.2fr; gap: 32px;
    background: var(--bg-card); border: 1px solid var(--line);
    border-radius: 24px; overflow: hidden;
    min-height: 460px;
  }
  .unit-info {
    padding: 48px 44px; position: relative;
    display: flex; flex-direction: column; gap: 18px;
  }
  .unit-info .unit-flag {
    position: absolute; top: 28px; right: 28px;
  }
  .unit-info .unit-city { margin: 0; }
  .unit-info h3 {
    font-size: 32px; margin: 0; font-weight: 800;
    letter-spacing: -0.025em; line-height: 1.1;
  }
  .unit-info .addr {
    font-size: 16px; color: var(--text-dim); margin: 0; line-height: 1.55;
  }
  .unit-meta {
    display: grid; gap: 14px;
    padding: 20px 0;
    border-top: 1px solid var(--line-soft);
    border-bottom: 1px solid var(--line-soft);
  }
  .unit-meta-item {
    display: flex; justify-content: space-between; align-items: baseline; gap: 16px;
  }
  .unit-meta-label {
    font-family: var(--mono); font-size: 11px;
    color: var(--text-mute); text-transform: uppercase; letter-spacing: 0.1em;
  }
  .unit-meta-value {
    font-size: 14px; color: var(--text); font-weight: 500; text-align: right;
  }
  .unit-actions {
    display: flex; gap: 12px; flex-wrap: wrap; margin-top: 4px;
  }
  .unit-map {
    min-height: 360px; background: var(--bg-card);
  }
  .unit-map iframe { display: block; width: 100%; height: 100%; min-height: 360px; }
  .unit-photo {
    min-height: 460px; overflow: hidden;
  }
  .unit-photo img {
    width: 100%; height: 100%; object-fit: cover; display: block;
  }

  @media (max-width: 980px) {
    .unit-featured { grid-template-columns: 1fr; }
    .unit-info { padding: 32px 24px; }
    .unit-info h3 { font-size: 26px; }
  }

  /* ===== BLOG ===== */
  .blog { padding: 120px 0; }
  .blog-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 20px; }
  .post {
    background: var(--bg-card); border: 1px solid var(--line);
    border-radius: 18px; overflow: hidden;
    transition: transform .2s;
  }
  .post:hover { transform: translateY(-4px); }
  .post-thumb { aspect-ratio: 16/9; position: relative; background: var(--c, var(--yellow)); overflow: hidden; }
  .post:first-child .post-thumb { aspect-ratio: 16/10; }
  .post-thumb::after {
    content: ''; position: absolute; inset: 0;
    background-image: linear-gradient(rgba(0,0,0,0.1) 1px, transparent 1px);
    background-size: 100% 12px;
    mix-blend-mode: overlay;
  }
  .post-tag {
    position: absolute; top: 16px; left: 16px;
    background: rgba(255,255,255,0.92); color: #14171F;
    padding: 5px 11px; border-radius: 999px;
    font-family: var(--mono); font-size: 11px; font-weight: 600;
    letter-spacing: 0.05em; text-transform: uppercase; z-index: 2;
  }
  .post-body { padding: 26px 28px 30px; }
  .post-body h4 { font-size: 20px; margin: 0 0 10px; font-weight: 700; letter-spacing: -0.015em; line-height: 1.25; }
  .post:first-child .post-body h4 { font-size: 26px; }
  .post-body p { font-size: 14.5px; color: var(--text-dim); margin: 0 0 16px; line-height: 1.55; }
  .post-meta { font-family: var(--mono); font-size: 12px; color: var(--text-mute); display: flex; gap: 16px; }

  /* ===== FAQ ===== */
  .faq { padding: 120px 0; background: var(--bg-card); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
  .faq-grid { max-width: 880px; margin: 0 auto; }
  .faq-item { border-bottom: 1px solid var(--line); }
  .faq-q {
    padding: 26px 0; cursor: pointer;
    display: flex; align-items: center; justify-content: space-between; gap: 24px;
    font-size: 19px; font-weight: 600; letter-spacing: -0.015em;
    transition: color .15s;
  }
  .faq-q:hover { color: var(--blue); }
  .faq-q .icon {
    width: 32px; height: 32px; border-radius: 50%;
    background: var(--text); color: var(--bg);
    display: grid; place-items: center; flex-shrink: 0;
    font-size: 18px; transition: transform .2s, background .15s;
  }
  .faq-item.open .icon { transform: rotate(45deg); background: var(--yellow); color: #14171F; }
  .faq-a { max-height: 0; overflow: hidden; transition: max-height .3s; }
  .faq-item.open .faq-a { max-height: 220px; }
  .faq-a-inner { padding: 0 56px 28px 0; font-size: 16px; color: var(--text-dim); line-height: 1.65; }

  /* ===== CTA ===== */
  .cta { padding: 120px 0; }
  .cta-card {
    background: var(--text); color: var(--bg);
    border-radius: 28px; padding: 80px 64px;
    position: relative; overflow: hidden;
    display: grid; grid-template-columns: 1.1fr 1fr; gap: 60px; align-items: center;
  }
  [data-theme="dark"] .cta-card { background: var(--yellow); color: #14171F; }
  .cta-card::before {
    content: ''; position: absolute; top: -100px; right: -100px;
    width: 400px; height: 400px; border-radius: 50%;
    background: var(--yellow); opacity: 0.18;
  }
  [data-theme="dark"] .cta-card::before { background: var(--red); opacity: 0.25; }
  .cta-card::after {
    content: ''; position: absolute; bottom: -80px; left: 30%;
    width: 200px; height: 200px; border-radius: 50%;
    background: var(--blue); opacity: 0.18;
  }
  .cta-card h2 {
    font-size: clamp(36px, 4.5vw, 60px); font-weight: 900;
    margin: 0 0 18px; letter-spacing: -0.03em; line-height: 1;
    position: relative;
  }
  .cta-card p { font-size: 18px; opacity: 0.75; margin: 0 0 32px; position: relative; }
  .cta-form {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.12);
    backdrop-filter: blur(20px);
    border-radius: 18px; padding: 28px;
    display: grid; gap: 14px; position: relative;
  }
  [data-theme="dark"] .cta-form { background: rgba(0,0,0,0.07); border-color: rgba(0,0,0,0.12); }
  .cta-form label {
    font-family: var(--mono); font-size: 11px;
    text-transform: uppercase; letter-spacing: 0.1em; opacity: 0.7;
    display: block; margin-bottom: 6px;
  }
  .cta-form input, .cta-form select {
    width: 100%; padding: 12px 14px;
    background: rgba(255,255,255,0.08); color: var(--bg);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 10px; font-family: inherit; font-size: 14.5px;
    transition: border-color .15s;
  }
  [data-theme="dark"] .cta-form input, [data-theme="dark"] .cta-form select { background: rgba(0,0,0,0.07); color: #14171F; border-color: rgba(0,0,0,0.12); }
  .cta-form input::placeholder { color: rgba(255,255,255,0.4); }
  [data-theme="dark"] .cta-form input::placeholder { color: rgba(0,0,0,0.4); }
  .cta-form input:focus, .cta-form select:focus { outline: none; border-color: var(--yellow); }

  /* ===== FOOTER ===== */
  footer { padding: 80px 0 32px; border-top: 1px solid var(--line); background: var(--bg-card); }
  .footer-grid {
    max-width: 1280px; margin: 0 auto;
    padding: 0 32px;
    display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 48px;
    margin-bottom: 48px;
  }
  .footer-grid h5 {
    font-family: var(--mono); font-size: 11px;
    text-transform: uppercase; letter-spacing: 0.1em;
    color: var(--text-mute); margin: 0 0 18px;
  }
  .footer-grid ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
  .footer-grid ul a { font-size: 14.5px; color: var(--text-dim); transition: color .15s; }
  .footer-grid ul a:hover { color: var(--text); }
  .footer-tag { font-size: 14px; color: var(--text-dim); max-width: 300px; margin: 16px 0 0; line-height: 1.55; }
  .footer-bottom {
    max-width: 1280px; margin: 0 auto;
    padding: 28px 32px 0;
    border-top: 1px solid var(--line);
    display: flex; justify-content: space-between; align-items: center;
    font-family: var(--mono); font-size: 12px; color: var(--text-mute);
  }

  /* ===== MODAL ===== */
  .modal-bg {
    position: fixed; inset: 0; z-index: 100;
    background: rgba(20,23,31,0.6); backdrop-filter: blur(10px);
    display: none; align-items: center; justify-content: center; padding: 20px;
  }
  .modal-bg.open { display: flex; }
  .modal {
    background: var(--bg-card); border-radius: 24px; padding: 44px 40px;
    max-width: 540px; width: 100%; position: relative;
    box-shadow: 0 40px 100px rgba(0,0,0,0.3);
    max-height: 92vh; overflow-y: auto;
  }
  .modal-close {
    position: absolute; top: 18px; right: 18px;
    width: 34px; height: 34px; border-radius: 50%;
    background: var(--line-soft); border: none;
    color: var(--text); display: grid; place-items: center;
    font-size: 22px; line-height: 1;
  }
  .modal h3 { font-size: 32px; margin: 0 0 8px; font-weight: 900; letter-spacing: -0.025em; line-height: 1.05; }
  .modal .modal-lead { color: var(--text-dim); margin: 0 0 28px; font-size: 16px; }
  .modal .field { margin-bottom: 16px; }
  .modal label {
    display: block; font-family: var(--mono); font-size: 11px;
    color: var(--text-mute); text-transform: uppercase; letter-spacing: 0.1em;
    margin-bottom: 8px;
  }
  .modal input, .modal select {
    width: 100%; padding: 14px 16px;
    background: var(--bg); color: var(--text);
    border: 1.5px solid var(--line); border-radius: 12px;
    font-family: inherit; font-size: 15px; transition: border-color .15s;
  }
  .modal input:focus, .modal select:focus { outline: none; border-color: var(--text); }
  .modal .submit {
    margin-top: 12px; width: 100%; padding: 16px;
    background: var(--yellow); color: #14171F; border: none;
    border-radius: 12px; font-weight: 700; font-size: 16px;
    box-shadow: 0 8px 24px -8px var(--yellow);
  }
  .success-msg { text-align: center; padding: 20px 0; }
  .success-msg .check {
    width: 64px; height: 64px; border-radius: 50%;
    background: var(--green); color: white;
    display: grid; place-items: center;
    font-size: 32px; margin: 0 auto 18px;
  }

  /* ===== GRID BG ===== */
  .grid-bg {
    position: fixed; inset: 0; pointer-events: none; z-index: 0;
    background-image:
      linear-gradient(var(--line-soft) 1px, transparent 1px),
      linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
    background-size: 80px 80px;
    mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 80%);
    -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 80%);
  }

  /* ===== PARTICLES ===== */
  .particles { position: fixed; inset: 0; pointer-events: none; z-index: 0; overflow: hidden; }
  .particle {
    position: absolute; font-family: var(--mono); font-size: 12px;
    color: var(--yellow); opacity: 0; animation: floatUp 14s linear infinite;
    font-weight: 500; letter-spacing: -0.02em;
  }
  @keyframes floatUp {
    0% { transform: translateY(0) rotate(0); opacity: 0; }
    10% { opacity: 0.4; }
    90% { opacity: 0.4; }
    100% { transform: translateY(-120vh) rotate(15deg); opacity: 0; }
  }

  /* ===== ACCENT (h1) ===== */
  .hero h1 .accent {
    color: var(--yellow);
    font-family: 'JetBrains Mono', monospace;
    font-weight: 700;
  }
  .hero h1 .accent::after {
    content: '_'; color: var(--yellow);
    animation: blink 1s steps(2) infinite; margin-left: 2px;
  }

  /* ===== TERMINAL ===== */
  .terminal {
    background: #0f1117;
    border: 1px solid rgba(255,255,255,0.14);
    border-radius: 14px; overflow: hidden;
    box-shadow: 0 32px 80px -20px rgba(0,0,0,0.35),
                0 0 0 1px rgba(241,203,11,0.05);
    transform: perspective(1200px) rotateY(-3deg) rotateX(2deg);
    transform-style: preserve-3d;
  }
  .terminal-bar {
    background: #181c25; padding: 12px 16px;
    display: flex; align-items: center; gap: 8px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
  }
  .terminal-dot { width: 12px; height: 12px; border-radius: 50%; }
  .terminal-dot.r { background: var(--red); }
  .terminal-dot.y { background: var(--yellow); }
  .terminal-dot.g { background: var(--green); }
  .terminal-title {
    margin-left: 12px; font-family: var(--mono); font-size: 12px;
    color: #5b6477;
  }
  .terminal-body {
    padding: 24px 22px 28px; font-family: var(--mono); font-size: 13.5px;
    line-height: 1.8; min-height: 380px;
    color: #e0e4ef;
  }
  .term-line { display: block; white-space: pre; }
  .term-prompt { color: #93C93D; }
  .term-comment { color: #5b6477; }
  .term-key { color: #3EA9CE; }
  .term-str { color: #F1CB0B; }
  .term-fn { color: #BF2131; }
  .term-num { color: #93C93D; }

  /* Hero col esquerda */
  .hero-text { display: flex; flex-direction: column; gap: 24px; }
  .hero-text h1 { margin: 0; font-size: clamp(36px, 4.5vw, 64px); }
  .hero-text .hero-eyebrow { margin-bottom: 0; }
  .hero-text .hero-lead { margin: 0; }
  .hero-text .hero-ctas { margin: 0; }
  .hero-text .hero-stats { margin: 0; }

  /* ===== RESPONSIVE ===== */
  @media (max-width: 980px) {
    .hero, .course-panel.active, .cta-card, .testi-card { grid-template-columns: 1fr !important; gap: 28px; }
    .why-grid, .teachers-grid, .units-grid, .age-tabs, .method-grid, .price-grid, .blog-grid { grid-template-columns: 1fr !important; }
    .projects-grid { grid-template-columns: 1fr; grid-auto-rows: 200px; }
    .projects-grid .proj { grid-column: span 1 !important; grid-row: span 1 !important; }
    .nav ul { display: none; }
    .terminal { transform: none; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .cta-card { padding: 48px 28px; }
  }