:root {
    --bg: #F4EFE6;
    --bg-2: #EBE3D2;
    --surface: #FFFFFF;
    --ink: #18231C;
    --ink-soft: #566359;
    --ink-dim: #8A948E;
    --green: #2D5F3F;
    --green-dk: #1E4129;
    --green-soft: #D9E6DC;
    --terra: #D88A3C;
    --terra-dk: #B96E24;
    --gold: #C9A14A;
    --red: #C94A3F;
    --border: #E0D6C3;
    --serif: 'Fraunces', 'DM Serif Display', Georgia, serif;
    --sans: 'Inter', -apple-system, system-ui, sans-serif;
  }
  * { box-sizing: border-box; margin: 0; padding: 0; }
  html, body { background: var(--bg); color: var(--ink); font-family: var(--sans); -webkit-font-smoothing: antialiased; }
  html { scroll-behavior: smooth; }
  ::selection { background: var(--green); color: var(--bg); }
  a { color: inherit; text-decoration: none; }
  button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
  img { max-width: 100%; display: block; }
  .serif { font-family: var(--serif); font-weight: 400; }
  .italic { font-style: italic; }
  .mono { font-family: 'Inter', monospace; letter-spacing: 0.12em; font-size: 11px; font-weight: 600; text-transform: uppercase; }
  .container { max-width: 1280px; margin: 0 auto; padding: 0 28px; }

  /* ── nav ── */
  nav.top {
    position: sticky; top: 0; z-index: 50; background: rgba(244,239,230,0.85);
    backdrop-filter: blur(16px); border-bottom: 1px solid var(--border);
  }
  nav.top .row { display: flex; align-items: center; justify-content: space-between; padding: 18px 0; }
  nav.top .logo {
    display: flex; align-items: center; gap: 10px;
    font-family: var(--serif); font-size: 26px; font-weight: 500; letter-spacing: -0.8px;
  }
  nav.top .logo-ic { width: 34px; height: 34px; border-radius: 10px; background: var(--green); display: flex; align-items: center; justify-content: center; }
  nav.top .links { display: flex; gap: 32px; }
  nav.top .links a { font-size: 14px; font-weight: 500; color: var(--ink-soft); transition: color 0.15s; }
  nav.top .links a:hover { color: var(--ink); }
  nav.top .cta { display: flex; gap: 10px; align-items: center; }

  .btn { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; border-radius: 12px; transition: transform 0.1s, background 0.15s; white-space: nowrap; font-size: 14px; padding: 12px 20px; }
  .btn:active { transform: translateY(2px); }
  .btn-green { background: var(--green); color: #fff; box-shadow: 0 3px 0 var(--green-dk); }
  .btn-green:active { box-shadow: 0 1px 0 var(--green-dk); }
  .btn-terra { background: var(--terra); color: #fff; box-shadow: 0 3px 0 var(--terra-dk); }
  .btn-terra:active { box-shadow: 0 1px 0 var(--terra-dk); }
  .btn-ghost { color: var(--ink-soft); }
  .btn-ghost:hover { color: var(--ink); }
  .btn-outline { background: var(--surface); color: var(--ink); border: 1.5px solid var(--border); box-shadow: 0 2px 0 var(--border); }
  .btn-lg { padding: 18px 28px; font-size: 15px; }

  /* ── hero ── */
  .hero { padding: 80px 0 40px; position: relative; overflow: hidden; }
  .hero::after {
    content: ''; position: absolute; top: 20%; right: -20%; width: 700px; height: 700px;
    background: radial-gradient(circle, rgba(216,138,60,0.2), transparent 60%);
    pointer-events: none; z-index: 0;
  }
  .hero .container { position: relative; z-index: 1; }
  .hero-tag {
    display: inline-flex; align-items: center; gap: 10px;
    padding: 6px 14px 6px 6px; background: var(--surface); border: 1px solid var(--border);
    border-radius: 999px; font-size: 13px; color: var(--ink-soft);
    margin-bottom: 32px;
  }
  .hero-tag .pill { background: var(--green); color: #fff; padding: 3px 10px; border-radius: 999px; font-weight: 700; font-size: 11px; letter-spacing: 0.05em; }

  .hero-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 60px; align-items: center; }
  .hero h1 {
    font-family: var(--serif); font-size: clamp(48px, 6.8vw, 104px);
    font-weight: 500; line-height: 0.96; letter-spacing: -2.5px;
  }
  .hero h1 .ital { font-style: italic; color: var(--terra); font-weight: 400; }
  .hero h1 .underline { position: relative; white-space: nowrap; }
  .hero h1 .underline::after {
    content: ''; position: absolute; left: 0; right: 0; bottom: 4px;
    height: 14px; background: var(--green); opacity: 0.25; z-index: -1;
    border-radius: 4px;
  }
  .hero-sub { margin-top: 28px; max-width: 520px; font-size: 18px; line-height: 1.55; color: var(--ink-soft); }
  .hero-cta { margin-top: 36px; display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
  .hero-beneath { margin-top: 28px; display: flex; gap: 20px; flex-wrap: wrap; font-size: 13px; color: var(--ink-soft); align-items: center; }
  .hero-beneath .star { color: var(--gold); letter-spacing: 1.5px; }
  .hero-beneath .d { color: var(--ink-dim); }

  /* ── phone mockup ── */
  .phone-stage { position: relative; display: flex; justify-content: center; padding: 20px 0; }
  .phone-stage::before {
    content: ''; position: absolute; inset: -40px;
    background: radial-gradient(circle, rgba(45,95,63,0.15), transparent 60%);
    pointer-events: none; border-radius: 50%;
  }
  .phone {
    width: 300px; height: 620px; background: #0A0A0A; border-radius: 44px; padding: 10px;
    position: relative; z-index: 1;
    box-shadow: 0 30px 60px -15px rgba(24,35,28,0.35);
  }
  .phone .screen { width: 100%; height: 100%; background: var(--bg); border-radius: 36px; overflow: hidden; position: relative; }
  .phone .notch { position: absolute; top: 10px; left: 50%; transform: translateX(-50%); width: 90px; height: 24px; background: #0A0A0A; border-radius: 14px; z-index: 10; }
  .phone-inner { padding: 46px 18px 0; height: 100%; overflow: hidden; }
  .p-topstrip { display: flex; justify-content: space-between; align-items: center; font-size: 13px; color: var(--ink-soft); margin-bottom: 10px; }
  .p-topstrip .streak { display: flex; align-items: center; gap: 4px; font-weight: 700; color: var(--ink); }
  .p-topstrip .stats { display: flex; gap: 12px; align-items: center; font-weight: 600; }
  .p-hero-card {
    background: var(--terra); color: #fff; border-radius: 16px; padding: 16px;
    box-shadow: 0 3px 0 var(--terra-dk); margin-bottom: 16px;
  }
  .p-hero-card .k { font-size: 10px; letter-spacing: 1.5px; text-transform: uppercase; opacity: 0.8; font-weight: 700; }
  .p-hero-card .t { font-family: var(--serif); font-size: 20px; line-height: 1.15; margin-top: 4px; }
  .p-path { display: flex; flex-direction: column; align-items: center; gap: 12px; }
  .p-node {
    width: 64px; height: 64px; border-radius: 50%; position: relative;
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 22px;
  }
  .p-node.green { background: var(--green); box-shadow: 0 4px 0 var(--green-dk); }
  .p-node.terra { background: var(--terra); box-shadow: 0 4px 0 var(--terra-dk); }
  .p-node.done { background: var(--gold); box-shadow: 0 4px 0 #A58033; }
  .p-node.locked { background: var(--border); color: var(--ink-dim); box-shadow: 0 4px 0 #B8AC95; }
  .p-node.off1 { transform: translateX(-50px); }
  .p-node.off2 { transform: translateX(50px); }
  .p-meerkat {
    position: absolute; top: 100px; right: 20px;
    width: 54px; height: 54px;
    background: #C4A373; border: 3px solid var(--ink); border-radius: 50%;
    display: flex; align-items: center; justify-content: center; font-size: 28px;
  }

  /* ── stats strip ── */
  .stats-strip { margin-top: 80px; padding: 40px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; }
  .stat { padding: 0 24px; border-left: 1px solid var(--border); }
  .stat:first-child { border-left: none; }
  .stat .v { font-family: var(--serif); font-size: 64px; font-weight: 500; letter-spacing: -2px; line-height: 1; }
  .stat .v.ital { font-style: italic; color: var(--terra); }
  .stat .l { font-size: 13px; color: var(--ink-soft); margin-top: 10px; line-height: 1.4; }

  /* ── section head ── */
  .section-head { max-width: 820px; margin: 0 auto 60px; text-align: center; }
  .section-head .kicker { display: inline-block; margin-bottom: 18px; color: var(--terra); }
  .section-head h2 {
    font-family: var(--serif); font-size: clamp(40px, 5.5vw, 72px);
    font-weight: 500; letter-spacing: -1.8px; line-height: 1.0;
  }
  .section-head h2 .ital { font-style: italic; color: var(--terra); font-weight: 400; }
  .section-head p { margin-top: 22px; font-size: 17px; line-height: 1.55; color: var(--ink-soft); }

  /* ── parcours ── */
  .tracks { padding: 120px 0 80px; }
  .tracks-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 60px;
  }
  .track {
    background: var(--surface); border: 1px solid var(--border); border-radius: 22px;
    padding: 28px; box-shadow: 0 2px 0 var(--border);
    position: relative; display: flex; flex-direction: column; gap: 16px;
    transition: transform 0.15s;
  }
  .track:hover { transform: translateY(-3px); }
  .track .icon {
    width: 56px; height: 56px; border-radius: 16px;
    display: flex; align-items: center; justify-content: center;
    font-size: 26px;
  }
  .track .top-meta { display: flex; justify-content: space-between; align-items: center; font-size: 12px; color: var(--ink-soft); font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; }
  .track h3 { font-family: var(--serif); font-size: 26px; font-weight: 500; line-height: 1.15; letter-spacing: -0.5px; }
  .track p { font-size: 14px; color: var(--ink-soft); line-height: 1.5; flex: 1; }
  .track .foot { display: flex; justify-content: space-between; align-items: center; padding-top: 14px; border-top: 1px solid var(--border); font-size: 13px; color: var(--ink-soft); }
  .track .foot .tag { font-weight: 700; color: var(--green); }
  .track.featured { background: var(--green); color: #fff; border-color: var(--green-dk); }
  .track.featured .top-meta, .track.featured p, .track.featured .foot { color: rgba(255,255,255,0.8); }
  .track.featured .foot { border-top-color: rgba(255,255,255,0.15); }
  .track.featured .foot .tag { color: var(--gold); }
  .track.featured .icon { background: rgba(255,255,255,0.15); }
  .track .pro-badge {
    display: inline-block; padding: 2px 8px; background: var(--gold); color: #fff;
    font-size: 10px; letter-spacing: 1px; border-radius: 4px; font-weight: 700;
  }

  /* ── speed section: live demo ── */
  .speed { padding: 120px 0; background: var(--ink); color: var(--bg); position: relative; overflow: hidden; }
  .speed::before {
    content: ''; position: absolute; top: -40%; left: -20%; width: 80%; height: 120%;
    background: radial-gradient(circle, rgba(216,138,60,0.25), transparent 60%);
  }
  .speed::after {
    content: ''; position: absolute; bottom: -40%; right: -20%; width: 80%; height: 120%;
    background: radial-gradient(circle, rgba(201,161,74,0.2), transparent 60%);
  }
  .speed .container { position: relative; z-index: 1; }
  .speed .kicker { color: var(--terra); }
  .speed-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; margin-top: 60px; align-items: center; }
  .speed-left h2 { font-family: var(--serif); font-size: clamp(48px, 6vw, 88px); font-weight: 500; letter-spacing: -2px; line-height: 0.98; }
  .speed-left h2 .ital { font-style: italic; color: var(--gold); font-weight: 400; }
  .speed-left p { margin-top: 24px; font-size: 17px; color: rgba(244,239,230,0.8); line-height: 1.55; max-width: 440px; }
  .speed-modes { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 32px; }
  .speed-mode {
    padding: 18px; background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1);
    border-radius: 14px;
  }
  .speed-mode .ic { font-size: 22px; }
  .speed-mode .t { font-family: var(--serif); font-size: 20px; font-weight: 500; margin-top: 8px; letter-spacing: -0.3px; }
  .speed-mode .s { font-size: 12px; color: rgba(244,239,230,0.65); margin-top: 4px; }
  .speed-mode .d { font-size: 10px; color: var(--gold); font-weight: 700; letter-spacing: 1.2px; text-transform: uppercase; margin-top: 10px; }

  .speed-demo {
    background: var(--bg); color: var(--ink); padding: 28px; border-radius: 22px;
    position: relative; box-shadow: 0 30px 60px -15px rgba(0,0,0,0.5);
  }
  .speed-demo .hud { display: flex; gap: 10px; margin-bottom: 16px; }
  .speed-demo .hud-item { flex: 1; padding: 10px 14px; background: #fff; border: 1px solid var(--border); border-radius: 12px; }
  .speed-demo .hud-item.combo { background: linear-gradient(135deg, var(--gold), var(--terra)); border-color: transparent; color: #fff; }
  .speed-demo .hud-item .l { font-size: 9px; letter-spacing: 1.5px; color: var(--ink-dim); text-transform: uppercase; font-weight: 700; }
  .speed-demo .hud-item.combo .l { color: rgba(255,255,255,0.75); }
  .speed-demo .hud-item .v { font-size: 18px; font-weight: 800; margin-top: 2px; letter-spacing: -0.4px; font-family: var(--serif); font-weight: 500; }
  .speed-demo .timer { height: 8px; background: var(--border); border-radius: 4px; overflow: hidden; margin-bottom: 20px; }
  .speed-demo .timer .fill { height: 100%; background: linear-gradient(90deg, var(--green), var(--gold)); width: 68%; }
  .speed-demo .q-label { font-size: 11px; letter-spacing: 1.5px; color: var(--ink-dim); font-weight: 700; text-transform: uppercase; }
  .speed-demo .q { font-family: var(--serif); font-size: 28px; font-weight: 500; line-height: 1.2; letter-spacing: -0.6px; margin: 10px 0 20px; min-height: 80px; }
  .speed-demo .choices { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
  .speed-demo .ch {
    padding: 24px 0; font-size: 20px; font-weight: 700; letter-spacing: -0.3px;
    border-radius: 14px; cursor: pointer; border: none; transition: transform 0.1s;
    position: relative; color: #fff;
  }
  .speed-demo .ch:hover { transform: translateY(-2px); }
  .speed-demo .ch.d { background: var(--green); box-shadow: 0 3px 0 var(--green-dk); }
  .speed-demo .ch.c { background: var(--terra); box-shadow: 0 3px 0 var(--terra-dk); }
  .speed-demo .ch.correct { box-shadow: 0 0 0 3px var(--gold), 0 8px 24px rgba(201,161,74,0.4); }
  .speed-demo .ch.wrong { animation: shake 0.3s; }
  .speed-demo .flying { position: absolute; font-size: 32px; font-weight: 800; color: var(--green); font-family: var(--serif); pointer-events: none; opacity: 0; }
  .speed-demo .flying.go { animation: flyUp 0.7s ease-out forwards; }
  @keyframes shake { 0%,100%{transform:translateX(0)} 25%{transform:translateX(-6px)} 75%{transform:translateX(6px)} }
  @keyframes flyUp { 0%{transform:translateY(0);opacity:1} 100%{transform:translateY(-60px);opacity:0} }

  /* ── playground lesson ── */
  .pg { padding: 120px 0; }
  .pg-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: 60px; align-items: center; margin-top: 60px; }
  .pg-left h2 { font-family: var(--serif); font-size: clamp(40px, 5vw, 64px); font-weight: 500; line-height: 1.0; letter-spacing: -1.8px; }
  .pg-left h2 .ital { font-style: italic; color: var(--terra); font-weight: 400; }
  .pg-left p { margin-top: 20px; color: var(--ink-soft); font-size: 17px; line-height: 1.55; max-width: 440px; }
  .pg-left .q-nav { margin-top: 28px; display: flex; gap: 8px; flex-wrap: wrap; }
  .pg-picker {
    display: inline-flex; align-items: center; gap: 10px;
    padding: 6px 10px 6px 14px; margin-bottom: 22px;
    background: var(--surface); border: 1px solid var(--border);
    border-radius: 999px; box-shadow: 0 2px 0 var(--border);
  }
  .pg-picker label { color: var(--ink-dim); }
  .pg-picker select {
    appearance: none; -webkit-appearance: none;
    background: var(--bg); border: 1px solid var(--border); border-radius: 999px;
    padding: 8px 32px 8px 14px; cursor: pointer;
    font-family: var(--sans); font-size: 13px; font-weight: 700; color: var(--ink);
    background-image: url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%2318231C' stroke-width='1.6' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat; background-position: right 12px center;
  }
  .pg-picker select:focus { outline: 2px solid var(--green); outline-offset: 2px; }
  .q-dot { padding: 8px 14px; background: var(--surface); border: 1px solid var(--border); border-radius: 12px; font-size: 12px; color: var(--ink-soft); font-weight: 600; }
  .q-dot.on { background: var(--green); color: #fff; border-color: var(--green-dk); }
  .lesson-ui {
    background: var(--surface); border: 1px solid var(--border); border-radius: 24px;
    padding: 28px; box-shadow: 0 3px 0 var(--border); min-height: 480px;
  }
  .lesson-ui .head { display: flex; align-items: center; gap: 14px; margin-bottom: 20px; }
  .lesson-ui .exit { color: var(--ink-dim); font-size: 18px; cursor: pointer; }
  .lesson-ui .bar-wrap { flex: 1; height: 12px; background: var(--bg-2); border-radius: 6px; overflow: hidden; }
  .lesson-ui .bar-wrap .bar { height: 100%; width: 35%; background: var(--green); border-radius: 6px; }
  .lesson-ui .hearts { display: flex; gap: 2px; align-items: center; color: var(--red); font-size: 16px; font-weight: 700; }
  .lesson-ui .prompt { font-size: 11px; letter-spacing: 1.5px; color: var(--ink-dim); font-weight: 700; text-transform: uppercase; }
  .lesson-ui .scenario {
    margin-top: 12px; padding: 20px; background: var(--bg);
    border-radius: 14px; border-left: 4px solid var(--terra);
  }
  .lesson-ui .scenario .t { font-family: var(--serif); font-size: 22px; font-weight: 500; line-height: 1.25; letter-spacing: -0.4px; }
  .lesson-ui .scenario .m { font-size: 13px; color: var(--terra); margin-top: 8px; font-weight: 700; letter-spacing: 0.05em; }
  .lesson-ui .ask { margin-top: 24px; font-size: 15px; color: var(--ink-soft); font-weight: 500; }
  .lesson-ui .opts { margin-top: 16px; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
  .lesson-ui .opt {
    padding: 14px; border: 2px solid var(--border); background: var(--bg);
    border-radius: 14px; cursor: pointer; text-align: left; transition: all 0.15s;
  }
  .lesson-ui .opt:hover { border-color: var(--ink-soft); }
  .lesson-ui .opt.sel { border-color: var(--green); background: var(--green-soft); }
  .lesson-ui .opt.correct { border-color: var(--green); background: var(--green-soft); }
  .lesson-ui .opt.wrong { border-color: var(--red); background: #FDE7E5; }
  .lesson-ui .opt .code { font-size: 11px; color: var(--ink-dim); letter-spacing: 0.05em; font-weight: 700; }
  .lesson-ui .opt .lbl { margin-top: 4px; font-family: var(--serif); font-size: 17px; font-weight: 500; }
  .lesson-ui .check-btn {
    margin-top: 20px; width: 100%; padding: 16px; border-radius: 14px;
    background: var(--green); color: #fff; font-weight: 700; font-size: 14px;
    letter-spacing: 0.05em; text-transform: uppercase; cursor: pointer;
    box-shadow: 0 3px 0 var(--green-dk); transition: all 0.1s;
  }
  .lesson-ui .check-btn:disabled { background: var(--bg-2); color: var(--ink-dim); box-shadow: 0 3px 0 var(--border); cursor: not-allowed; }
  .lesson-ui .feedback {
    margin-top: 14px; padding: 14px 16px; border-radius: 12px; font-size: 13px; line-height: 1.5;
  }
  .lesson-ui .feedback.ok { background: var(--green-soft); color: var(--green-dk); border: 1px solid var(--green); }
  .lesson-ui .feedback.ko { background: #FDE7E5; color: #8A2A22; border: 1px solid var(--red); }

  /* ── drag&drop UI (landing Playground) ── */
  .lesson-ui .dd-pool {
    margin-top: 16px; padding: 14px; background: var(--bg-2);
    border: 2px dashed var(--border); border-radius: 14px;
    display: flex; flex-wrap: wrap; gap: 8px; min-height: 80px;
  }
  .lesson-ui .dd-pool .empty { width: 100%; text-align: center; font-size: 13px; color: var(--ink-soft); padding: 14px; }
  .lesson-ui .dd-chip {
    position: relative;
    padding: 10px 14px; background: var(--surface); border: 2px solid var(--border);
    border-radius: 12px; font-weight: 700; font-size: 13px; color: var(--ink);
    cursor: pointer; box-shadow: 0 2px 0 var(--border); user-select: none;
  }
  .lesson-ui .dd-chip:hover { border-color: var(--ink-soft); }
  .lesson-ui .dd-chip .dd-menu {
    display: none; position: absolute; top: calc(100% + 4px); left: 0; z-index: 10;
    background: var(--surface); border: 2px solid var(--border); border-radius: 10px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.1); overflow: hidden;
  }
  .lesson-ui .dd-chip.open .dd-menu { display: block; }
  .lesson-ui .dd-chip .dd-menu-item { padding: 8px 14px; font-size: 12px; font-weight: 600; cursor: pointer; border-bottom: 1px solid var(--border); }
  .lesson-ui .dd-chip .dd-menu-item:last-child { border-bottom: none; }
  .lesson-ui .dd-chip .dd-menu-item:hover { background: var(--bg); }
  .lesson-ui .dd-zones { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 12px; }
  .lesson-ui .dd-zone {
    padding: 12px; border-radius: 14px; border: 2px solid var(--border);
    min-height: 160px; display: flex; flex-direction: column; gap: 6px;
  }
  .lesson-ui .dd-zone.blue { background: #E6F0F5; border-color: #4A7A8C; }
  .lesson-ui .dd-zone.amber { background: #F5EADF; border-color: #B8854A; }
  .lesson-ui .dd-zone .zone-title {
    font-family: var(--serif); font-size: 16px; font-weight: 600;
    text-align: center; padding-bottom: 6px;
    border-bottom: 1.5px solid rgba(0,0,0,0.08); letter-spacing: -0.2px;
  }
  .lesson-ui .dd-zone.blue .zone-title { color: #2A5766; }
  .lesson-ui .dd-zone.amber .zone-title { color: #6B4423; }
  .lesson-ui .dd-zone .zone-item {
    padding: 8px 10px; background: var(--surface); border: 1.5px solid var(--border);
    border-radius: 10px; font-size: 12px; font-weight: 600; color: var(--ink);
    display: flex; justify-content: space-between; align-items: center;
  }
  .lesson-ui .dd-zone .zone-item.correct { border-color: var(--green); background: var(--green-soft); }
  .lesson-ui .dd-zone .zone-item.wrong { border-color: var(--red); background: #FDE7E5; }
  .lesson-ui .dd-zone .zone-item .mark { font-weight: 800; font-size: 13px; }
  .lesson-ui .dd-zone .zone-item.correct .mark { color: var(--green); }
  .lesson-ui .dd-zone .zone-item.wrong .mark { color: var(--red); }

  /* ── journal UI (landing Playground) ── */
  .lesson-ui .jr-scenario {
    margin-top: 12px; padding: 14px 16px; background: var(--bg);
    border-radius: 12px; border-left: 4px solid var(--terra);
    font-family: var(--serif); font-size: 16px; font-weight: 500; line-height: 1.3;
  }
  .lesson-ui .jr-table {
    margin-top: 14px; background: var(--surface); border: 1px solid var(--border);
    border-radius: 12px; overflow: hidden;
  }
  .lesson-ui .jr-head, .lesson-ui .jr-row, .lesson-ui .jr-totals {
    display: grid; grid-template-columns: 1.6fr 1fr 1fr; padding: 8px 12px;
  }
  .lesson-ui .jr-head {
    background: var(--bg-2); font-size: 11px; font-weight: 800; text-transform: uppercase;
    letter-spacing: 0.5px; color: var(--ink-soft);
  }
  .lesson-ui .jr-head > div:last-child, .lesson-ui .jr-head > div:nth-child(2),
  .lesson-ui .jr-row > div:nth-child(2), .lesson-ui .jr-row > div:nth-child(3),
  .lesson-ui .jr-totals > div:nth-child(2), .lesson-ui .jr-totals > div:nth-child(3) { text-align: right; }
  .lesson-ui .jr-row { border-top: 1px solid var(--border); align-items: center; }
  .lesson-ui .jr-row.wrong { background: #FDE7E5; }
  .lesson-ui .jr-acct-picker {
    position: relative;
    font-size: 13px; color: var(--ink); font-weight: 600; cursor: pointer;
  }
  .lesson-ui .jr-acct-picker .placeholder { color: var(--ink-soft); }
  .lesson-ui .jr-acct-picker .code-label { color: var(--green); font-weight: 800; margin-right: 4px; }
  .lesson-ui .jr-acct-menu {
    display: none; position: absolute; top: calc(100% + 4px); left: -8px;
    width: 260px; max-height: 200px; overflow: auto; z-index: 50;
    background: var(--surface); border: 2px solid var(--border); border-radius: 10px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.12);
  }
  .lesson-ui .jr-acct-picker.open .jr-acct-menu { display: block; }
  .lesson-ui .jr-acct-menu .jr-acct-option {
    padding: 8px 12px; cursor: pointer; font-size: 13px;
    border-bottom: 1px solid var(--border); display: flex; gap: 8px;
  }
  .lesson-ui .jr-acct-menu .jr-acct-option:last-child { border-bottom: none; }
  .lesson-ui .jr-acct-menu .jr-acct-option:hover { background: var(--bg); }
  .lesson-ui .jr-acct-menu .jr-acct-option .code { color: var(--green); font-weight: 800; min-width: 48px; }
  .lesson-ui .jr-cell {
    width: 100%; border: none; background: transparent; font-family: inherit;
    font-size: 14px; font-weight: 700; color: var(--ink); text-align: right;
    outline: none; padding: 0;
  }
  .lesson-ui .jr-cell::placeholder { color: var(--ink-dim); font-weight: 500; }
  .lesson-ui .jr-totals {
    border-top: 2px solid var(--border); background: var(--bg-2);
    font-weight: 800; font-size: 13px;
  }
  .lesson-ui .jr-totals.balanced { background: var(--green-soft); color: var(--green-dk); }
  .lesson-ui .jr-hint {
    margin-top: 10px; font-size: 12px; color: var(--ink-soft); line-height: 1.5; padding: 0 4px;
  }

  /* ── vs comparison ── */
  .vs { padding: 120px 0; background: var(--bg-2); }
  .vs-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 60px; }
  .vs-col { padding: 32px; border-radius: 22px; border: 1px solid var(--border); background: var(--surface); }
  .vs-col.new { border-color: var(--green); box-shadow: 0 2px 0 var(--green-dk); position: relative; }
  .vs-col.old .title { color: var(--red); }
  .vs-col.new .title { color: var(--green); }
  .vs-col .title { font-size: 13px; letter-spacing: 1.5px; font-weight: 700; text-transform: uppercase; display: flex; align-items: center; gap: 8px; margin-bottom: 14px; }
  .vs-col h3 { font-family: var(--serif); font-size: 32px; font-weight: 500; letter-spacing: -0.8px; line-height: 1.1; }
  .vs-col ul { margin-top: 28px; list-style: none; display: flex; flex-direction: column; gap: 10px; }
  .vs-col li { padding: 14px 16px; background: var(--bg); border-radius: 12px; display: flex; gap: 12px; align-items: flex-start; font-size: 14px; color: var(--ink); line-height: 1.45; }
  .vs-col li .ic { width: 22px; height: 22px; border-radius: 50%; flex-shrink: 0; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 13px; }
  .vs-col.old li .ic { background: #FDE7E5; color: var(--red); }
  .vs-col.new li .ic { background: var(--green-soft); color: var(--green); }

  /* ── testimonials ── */
  .testim { padding: 120px 0; }
  .testim-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 60px; }
  .quote { background: var(--surface); border: 1px solid var(--border); border-radius: 22px; padding: 28px; display: flex; flex-direction: column; box-shadow: 0 2px 0 var(--border); }
  .quote .stars { color: var(--gold); letter-spacing: 2px; font-size: 14px; margin-bottom: 16px; }
  .quote .q { font-family: var(--serif); font-size: 20px; font-weight: 400; line-height: 1.4; flex: 1; letter-spacing: -0.3px; }
  .quote .q::before { content: '"'; color: var(--terra); font-size: 36px; line-height: 0; position: relative; top: 8px; margin-right: 3px; }
  .quote .who { margin-top: 28px; padding-top: 20px; border-top: 1px solid var(--border); display: flex; align-items: center; gap: 12px; }
  .quote .av { width: 42px; height: 42px; border-radius: 50%; font-weight: 700; display: flex; align-items: center; justify-content: center; font-size: 14px; color: #fff; }
  .quote .who .n { font-weight: 700; font-size: 14px; }
  .quote .who .r { font-size: 12px; color: var(--ink-soft); margin-top: 2px; }

  /* ── pricing ── */
  .pricing { padding: 120px 0; background: var(--bg-2); }
  .pricing-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; max-width: 920px; margin: 60px auto 0; }
  .plan { padding: 36px; background: var(--surface); border: 1px solid var(--border); border-radius: 24px; position: relative; box-shadow: 0 3px 0 var(--border); }
  .plan.pro { background: var(--green); color: #fff; border-color: var(--green-dk); box-shadow: 0 3px 0 var(--green-dk); }
  .plan .tag { position: absolute; top: -12px; left: 28px; background: var(--terra); color: #fff; padding: 5px 12px; font-size: 10px; letter-spacing: 1.5px; font-weight: 700; border-radius: 8px; text-transform: uppercase; }
  .plan .nm { font-size: 11px; letter-spacing: 2px; color: var(--ink-soft); text-transform: uppercase; font-weight: 700; }
  .plan.pro .nm { color: rgba(255,255,255,0.7); }
  .plan .price-row { display: flex; align-items: baseline; gap: 8px; margin-top: 14px; }
  .plan .amt { font-family: var(--serif); font-size: 72px; font-weight: 500; letter-spacing: -2.5px; line-height: 1; }
  .plan .per { font-size: 14px; color: var(--ink-soft); }
  .plan.pro .per { color: rgba(255,255,255,0.7); }
  .plan .desc { margin-top: 14px; color: var(--ink-soft); font-size: 14px; line-height: 1.5; max-width: 360px; }
  .plan.pro .desc { color: rgba(255,255,255,0.8); }
  .plan ul { margin-top: 28px; list-style: none; display: flex; flex-direction: column; gap: 12px; }
  .plan li { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; line-height: 1.45; }
  .plan li::before { content: '✓'; color: var(--green); font-weight: 700; flex-shrink: 0; }
  .plan.pro li::before { color: var(--gold); }
  .plan .btn-plan { margin-top: 28px; display: block; text-align: center; padding: 15px; border-radius: 14px; font-weight: 700; font-size: 14px; letter-spacing: 0.05em; text-transform: uppercase; }
  .plan.free .btn-plan { background: var(--ink); color: #fff; box-shadow: 0 3px 0 #000; }
  .plan.pro .btn-plan { background: var(--gold); color: var(--ink); box-shadow: 0 3px 0 #A58033; }

  /* ── FAQ ── */
  .faq { padding: 120px 0; }
  .faq-grid { max-width: 800px; margin: 60px auto 0; }
  .faq details { padding: 22px 0; border-top: 1px solid var(--border); }
  .faq details:last-child { border-bottom: 1px solid var(--border); }
  .faq summary { cursor: pointer; list-style: none; display: flex; justify-content: space-between; gap: 20px; align-items: center; font-family: var(--serif); font-size: 22px; font-weight: 500; letter-spacing: -0.4px; }
  .faq summary::-webkit-details-marker { display: none; }
  .faq summary::after {
    content: '+'; color: var(--green); font-size: 24px; font-weight: 400; flex-shrink: 0;
    width: 32px; height: 32px; border-radius: 50%; background: var(--green-soft);
    display: flex; align-items: center; justify-content: center;
    transition: transform 0.2s;
  }
  .faq details[open] summary::after { content: '−'; }
  .faq details p { margin-top: 14px; color: var(--ink-soft); font-size: 15px; line-height: 1.6; max-width: 680px; }

  /* ── final CTA ── */
  .final-cta { padding: 140px 0 120px; text-align: center; position: relative; overflow: hidden; background: var(--green); color: var(--bg); }
  .final-cta::before {
    content: ''; position: absolute; top: -50%; left: 50%; transform: translateX(-50%);
    width: 1000px; height: 600px;
    background: radial-gradient(ellipse at center, rgba(201,161,74,0.25), transparent 60%);
    pointer-events: none;
  }
  .final-cta .container { position: relative; z-index: 1; }
  .final-cta h2 { font-family: var(--serif); font-size: clamp(56px, 8vw, 128px); font-weight: 500; letter-spacing: -3px; line-height: 0.92; max-width: 1000px; margin: 0 auto; }
  .final-cta h2 .ital { font-style: italic; color: var(--gold); font-weight: 400; }
  .final-cta p { margin: 28px auto 0; max-width: 480px; font-size: 17px; color: rgba(244,239,230,0.85); line-height: 1.55; }
  .final-cta .cta-row { margin-top: 36px; display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

  /* ── footer ── */
  footer { padding: 60px 0 32px; background: var(--ink); color: var(--bg); }
  footer .row { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr 1fr; gap: 32px; }
  footer .col .h { font-size: 11px; letter-spacing: 2px; color: rgba(244,239,230,0.5); text-transform: uppercase; margin-bottom: 14px; font-weight: 700; }
  footer .col a { display: block; padding: 5px 0; font-size: 14px; color: rgba(244,239,230,0.75); }
  footer .col a:hover { color: var(--bg); }
  footer .brand-c .name { display: flex; align-items: center; gap: 10px; font-family: var(--serif); font-size: 26px; font-weight: 500; }
  footer .brand-c .logo-ic { width: 34px; height: 34px; border-radius: 10px; background: var(--terra); display: flex; align-items: center; justify-content: center; }
  footer .brand-c p { margin-top: 14px; font-size: 13px; color: rgba(244,239,230,0.6); max-width: 280px; line-height: 1.5; }
  footer .bot { margin-top: 48px; padding-top: 24px; border-top: 1px solid rgba(244,239,230,0.1); display: flex; justify-content: space-between; font-size: 11px; letter-spacing: 1.5px; color: rgba(244,239,230,0.5); text-transform: uppercase; }

  /* ── milo ── */
  .milo-svg { display: block; }

  @media (max-width: 980px) {
    .hero-grid, .speed-grid, .pg-grid, .vs-grid, .pricing-grid { grid-template-columns: 1fr; gap: 40px; }
    .tracks-grid, .testim-grid { grid-template-columns: 1fr; }
    .stats-strip { grid-template-columns: 1fr 1fr; gap: 24px 0; }
    .stat { padding: 20px 16px; }
    .stat:nth-child(3) { border-left: none; }
    .stat:nth-child(1), .stat:nth-child(2) { border-bottom: 1px solid var(--border); }
    nav.top .links { display: none; }
    footer .row { grid-template-columns: 1fr 1fr; }
    footer .brand-c { grid-column: span 2; }
    .phone { transform: scale(0.9); }
  }