/* ─── TOKENS ─── */
    :root {
      --color-primary:       #1e3a8a;
      --color-primary-light: #3b82f6;
      --color-primary-dark:  #1e40af;
      --color-accent:        #10b981;
      --color-accent-light:  #6ee7b7;
      --color-bg:            #f8fafc;
      --color-surface:       #ffffff;
      --color-text:          #1e293b;
      --color-muted:         #e0e5eb;
      --color-border-light:  rgba(30,58,138,0.15);
      --shadow:              0 2px 8px rgba(0,0,0,0.08);
      --shadow-md:           0 4px 20px rgba(30,58,138,0.12);
      --border-radius:       0.5rem;
      --transition:          0.25s ease-in-out;
      --gradient-hero:       linear-gradient(135deg, #1e3a8a 0%, #1e40af 50%, #2563eb 100%);

      /* ── LANGUAGE ACCENT (override per language) ── */
      --lang-color:          #c60b1e; /* Spanish red */
      --lang-color-2:        #f1bf00; /* Spanish gold */
      --lang-gradient:       linear-gradient(135deg, #c60b1e 0%, #a00016 100%);
      --lang-gradient-hero:  linear-gradient(135deg, #1e3a8a 0%, #c60b1e 100%);

      --font-display: 'DM Serif Display', Georgia, serif;
      --font-body:    'DM Sans', 'Segoe UI', sans-serif;
    }

    /* ─── RESET ─── */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body {
      font-family: var(--font-body);
      background: var(--color-bg);
      color: var(--color-text);
      line-height: 1.6;
      overflow-x: hidden;
    }
    a { text-decoration: none; color: inherit; }

    /* ─── REVEAL ─── */
    .reveal {
      opacity: 0; transform: translateY(24px);
      transition: opacity 0.55s ease, transform 0.55s ease;
    }
    .reveal.visible { opacity: 1; transform: translateY(0); }

    /* ─── NAV ─── */
    .navigation-header {
      background: var(--gradient-hero);
      height: 64px; display: flex; justify-content: center; align-items: center;
      position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
      box-shadow: 0 2px 12px rgba(30,58,138,0.3);
    }
    nav {
      width: 100%; max-width: 1200px;
      display: flex; justify-content: space-between; align-items: center;
      padding: 0 1.5rem;
    }
    .logo-container a {
      color: #fff; font-family: var(--font-display); font-size: 1.5rem; letter-spacing: -0.02em;
    }
    .logo-container a span { color: var(--color-accent-light); }
    .navigation-items { display: flex; gap: 2rem; align-items: center; }
    .navigation-items a {
      color: rgba(255,255,255,0.85); font-size: 0.95rem; font-weight: 500;
      transition: color var(--transition); position: relative; padding-bottom: 2px;
    }
    .navigation-items a::after {
      content: ''; position: absolute; bottom: 0; left: 0;
      width: 0; height: 2px; background: var(--color-accent-light);
      transition: width var(--transition);
    }
    .navigation-items a:hover { color: #fff; }
    .navigation-items a:hover::after { width: 100%; }
    .nav-cta {
      background: var(--color-accent) !important; color: #fff !important;
      padding: 0.45em 1.1em; border-radius: var(--border-radius);
      font-weight: 600 !important; font-size: 0.9rem !important;
      transition: background var(--transition), transform var(--transition) !important;
    }
    .nav-cta::after { display: none !important; }
    .nav-cta:hover { background: #059669 !important; transform: translateY(-1px); }
    .hamburger {
      display: none; flex-direction: column; gap: 5px;
      cursor: pointer; margin-left: auto; padding: 4px;
    }
    .hamburger span {
      display: block; width: 24px; height: 2px;
      background: #fff; border-radius: 2px; transition: var(--transition);
    }

    /* ─── BREADCRUMB ─── */
    .breadcrumb {
      margin-top: 64px;
      background: var(--color-surface);
      border-bottom: 1px solid var(--color-muted);
      padding: 0.6rem 1.5rem;
    }
    .breadcrumb-inner {
      max-width: 1200px; margin: 0 auto;
      display: flex; gap: 0.5rem; align-items: center;
      font-size: 0.82rem; color: #64748b;
    }
    .breadcrumb-inner a { color: var(--color-primary-light); }
    .breadcrumb-inner a:hover { text-decoration: underline; }
    .breadcrumb-sep { color: #cbd5e1; }

    /* ─── HERO ─── */
    .lang-hero {
      background: var(--lang-gradient-hero);
      padding: 4rem 1.5rem 3.5rem;
      position: relative; overflow: hidden;
    }
    .lang-hero::before {
      content: '';
      position: absolute; top: -80px; right: -60px;
      width: 420px; height: 420px; border-radius: 50%;
      background: rgba(198, 11, 30, 0.18);
      pointer-events: none;
    }
    .lang-hero::after {
      content: '';
      position: absolute; bottom: -100px; left: 10%;
      width: 300px; height: 300px; border-radius: 50%;
      background: rgba(241, 191, 0, 0.1);
      pointer-events: none;
    }
    /* Big decorative letter */
    .lang-hero-letter {
      position: absolute; right: 6%; top: 50%; transform: translateY(-50%);
      font-family: var(--font-display); font-size: clamp(8rem, 16vw, 14rem);
      color: rgba(255,255,255,0.06); line-height: 1;
      pointer-events: none; user-select: none;
      font-style: italic;
    }
    .lang-hero-inner {
      max-width: 1200px; margin: 0 auto; position: relative; z-index: 1;
      display: grid; grid-template-columns: auto 1fr; gap: 2.5rem; align-items: center;
    }
    .lang-flag-wrap {
      display: flex; flex-direction: column; align-items: center; gap: 0.5rem;
    }
    .lang-flag {
      font-size: clamp(3.5rem, 7vw, 5.5rem);
      line-height: 1;
      filter: drop-shadow(0 4px 16px rgba(0,0,0,0.25));
    }
    .lang-script {
      font-family: var(--font-display);
      font-size: 1.1rem; font-style: italic;
      color: rgba(255,255,255,0.65); letter-spacing: 0.02em;
    }
    .lang-hero-text {}
    .lang-hero-eyebrow {
      display: inline-flex; align-items: center; gap: 0.5rem;
      background: rgba(255,255,255,0.12);
      border: 1px solid rgba(255,255,255,0.25);
      color: rgba(255,255,255,0.9);
      font-size: 0.75rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase;
      padding: 0.3em 0.85em; border-radius: 99px; margin-bottom: 1rem;
    }
    .lang-hero h1 {
      font-family: var(--font-display);
      font-size: clamp(2.2rem, 5vw, 3.6rem);
      color: #fff; line-height: 1.15; letter-spacing: -0.03em;
      margin-bottom: 0.75rem;
    }
    .lang-hero h1 em { font-style: italic; color: var(--lang-color-2, var(--color-accent-light)); }
    .lang-hero-desc {
      color: rgba(255,255,255,0.75); font-size: 1rem; font-weight: 300;
      max-width: 520px; line-height: 1.75; margin-bottom: 1.75rem;
    }
    .lang-hero-actions { display: flex; gap: 0.75rem; flex-wrap: wrap; }
    .btn-primary {
      background: var(--lang-color, var(--color-accent));
      color: #fff; border: none; border-radius: var(--border-radius);
      padding: 0.7em 1.6em; font-size: 0.95rem; font-weight: 600;
      font-family: var(--font-body); cursor: pointer;
      transition: filter var(--transition), transform var(--transition), box-shadow var(--transition);
      box-shadow: 0 4px 14px rgba(0,0,0,0.25);
    }
    .btn-primary:hover { filter: brightness(1.12); transform: translateY(-2px); }
    .btn-outline {
      background: transparent; color: #fff;
      border: 1.5px solid rgba(255,255,255,0.4);
      border-radius: var(--border-radius);
      padding: 0.7em 1.6em; font-size: 0.95rem; font-weight: 500;
      font-family: var(--font-body); cursor: pointer;
      transition: border-color var(--transition), background var(--transition), transform var(--transition);
    }
    .btn-outline:hover { border-color: #fff; background: rgba(255,255,255,0.1); transform: translateY(-2px); }

    /* ─── STAT BAR ─── */
    .stat-bar {
      background: var(--color-surface);
      border-bottom: 1px solid var(--color-muted);
      padding: 1.25rem 1.5rem;
    }
    .stat-bar-inner {
      max-width: 1200px; margin: 0 auto;
      display: flex; flex-wrap: wrap; gap: 0; justify-content: space-around;
    }
    .stat-item {
      display: flex; flex-direction: column; align-items: center;
      padding: 0 2rem; text-align: center;
      border-right: 1px solid var(--color-muted);
    }
    .stat-item:last-child { border-right: none; }
    .stat-num {
      font-family: var(--font-display); font-size: 1.7rem;
      color: var(--lang-color); line-height: 1;
    }
    .stat-label { font-size: 0.78rem; color: #64748b; margin-top: 3px; }

    /* ─── SECTION SHARED ─── */
    .section { padding: 4.5rem 1.5rem; }
    .section-inner { max-width: 1200px; margin: 0 auto; }
    .section-eyebrow {
      font-size: 0.72rem; font-weight: 600; letter-spacing: 0.1em;
      text-transform: uppercase; color: var(--color-primary-light); margin-bottom: 0.6rem;
    }
    .section-title {
      font-family: var(--font-display);
      font-size: clamp(1.7rem, 3vw, 2.4rem);
      color: var(--color-primary); line-height: 1.2;
      letter-spacing: -0.02em; margin-bottom: 0.85rem;
    }
    .section-sub {
      font-size: 1rem; color: #64748b; font-weight: 300;
      max-width: 540px; line-height: 1.75;
    }

    /* ─── OVERVIEW ─── */
    .overview-section { background: var(--color-surface); }
    .overview-grid {
      display: grid; grid-template-columns: 1fr 1fr; gap: 3.5rem;
      margin-top: 3rem; align-items: start;
    }
    .overview-body p {
      font-size: 0.97rem; color: #475569; line-height: 1.8;
      margin-bottom: 1.1rem;
    }
    .overview-body p:last-child { margin-bottom: 0; }
    .overview-meta {
      display: flex; flex-direction: column; gap: 1rem;
    }
    .meta-card {
      background: var(--color-bg);
      border: 1px solid var(--color-muted);
      border-radius: 10px; padding: 1rem 1.25rem;
      display: flex; gap: 1rem; align-items: flex-start;
    }
    .meta-icon {
      width: 36px; height: 36px; border-radius: 8px; flex-shrink: 0;
      background: linear-gradient(135deg, var(--lang-color), var(--color-primary));
      display: flex; align-items: center; justify-content: center;
      font-size: 1rem;
    }
    .meta-label { font-size: 0.72rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: #94a3b8; }
    .meta-value { font-size: 0.92rem; font-weight: 500; color: var(--color-text); margin-top: 2px; }

    /* ─── TOOLS ─── */
    .tools-section { background: var(--color-bg); }
    .tools-grid {
      display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
      gap: 1.25rem; margin-top: 2.5rem;
    }
    .tool-card {
      background: var(--color-surface);
      border: 1px solid var(--color-muted);
      border-radius: 12px; padding: 1.5rem;
      display: flex; flex-direction: column;
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
      position: relative; overflow: hidden; cursor: pointer;
    }
    .tool-card::after {
      content: '→';
      position: absolute; bottom: 1.25rem; right: 1.25rem;
      font-size: 1rem; color: var(--color-muted);
      transition: color var(--transition), transform var(--transition);
    }
    .tool-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: rgba(30,58,138,0.25); }
    .tool-card:hover::after { color: var(--lang-color); transform: translateX(3px); }
    .tool-card.coming { cursor: default; }
    .tool-card.coming:hover { transform: none; box-shadow: none; border-color: var(--color-muted); }
    .tool-card.coming::after { display: none; }
    .tool-card-accent {
      height: 4px; border-radius: 2px; margin-bottom: 1.25rem;
      background: var(--lang-gradient);
    }
    .tool-card.coming .tool-card-accent { background: var(--color-muted); }
    .tool-icon {
      width: 44px; height: 44px; border-radius: 10px;
      background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary-light));
      display: flex; align-items: center; justify-content: center;
      font-size: 1.3rem; margin-bottom: 1rem;
    }
    .tool-card.coming .tool-icon { background: #e2e8f0; }
    .tool-card h3 { font-size: 1rem; font-weight: 600; color: var(--color-primary); margin-bottom: 0.4rem; }
    .tool-card p { font-size: 0.87rem; color: #64748b; line-height: 1.6; flex: 1; }
    .tool-badge {
      display: inline-block; margin-top: 1rem;
      font-size: 0.68rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase;
      padding: 0.25em 0.75em; border-radius: 99px;
    }
    .tool-badge.available { background: rgba(16,185,129,0.1); color: var(--color-accent); }
    .tool-badge.coming    { background: rgba(59,130,246,0.1);  color: var(--color-primary-light); }

    /* ─── PHRASES ─── */
    .phrases-section { background: var(--color-surface); }
    .phrases-tabs {
      display: flex; gap: 0.4rem; margin: 2rem 0 1.5rem;
      border-bottom: 1px solid var(--color-muted);
    }
    .ptab {
      padding: 0.5rem 1.1rem; cursor: pointer;
      font-size: 0.88rem; font-weight: 500; color: #64748b;
      border-bottom: 2px solid transparent; margin-bottom: -1px;
      transition: color var(--transition), border-color var(--transition);
    }
    .ptab.active { color: var(--lang-color); border-color: var(--lang-color); }
    .ptab:hover:not(.active) { color: var(--color-primary); }
    .phrases-panel { display: none; }
    .phrases-panel.active { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1rem; }
    .phrase-card {
      background: var(--color-bg);
      border: 1px solid var(--color-muted);
      border-left: 4px solid var(--lang-color);
      border-radius: 0 8px 8px 0; padding: 1rem 1.1rem;
      transition: box-shadow var(--transition), transform var(--transition);
      cursor: default;
    }
    .phrase-card:hover { box-shadow: var(--shadow); transform: translateX(3px); }
    .phrase-original { font-size: 1.05rem; font-weight: 600; color: var(--color-primary); margin-bottom: 3px; }
    .phrase-translation { font-size: 0.85rem; color: #64748b; }
    .phrase-romanized { font-size: 0.8rem; color: #94a3b8; font-style: italic; margin-top: 2px; }

    /* ─── FUN FACTS ─── */
    .facts-section { background: var(--color-bg); }
    .facts-grid {
      display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
      gap: 1.25rem; margin-top: 2.5rem;
    }
    .fact-card {
      background: var(--color-surface);
      border: 1px solid var(--color-muted);
      border-radius: 12px; padding: 1.5rem;
      transition: transform var(--transition), box-shadow var(--transition);
    }
    .fact-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
    .fact-emoji { font-size: 1.8rem; margin-bottom: 0.75rem; }
    .fact-card h4 { font-size: 0.92rem; font-weight: 600; color: var(--color-primary); margin-bottom: 0.4rem; }
    .fact-card p { font-size: 0.85rem; color: #64748b; line-height: 1.65; }

    /* ─── LESSONS COMING SOON ─── */
    .lessons-section {
      background: var(--color-surface);
      border-top: 1px solid var(--color-muted);
    }
    .lessons-inner {
      display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center;
    }
    .lessons-visual {
      background: var(--lang-gradient-hero);
      border-radius: 16px; padding: 2.5rem;
      position: relative; overflow: hidden;
      min-height: 260px; display: flex; flex-direction: column; justify-content: center;
    }
    .lessons-visual::before {
      content: '🎓';
      position: absolute; right: 1.5rem; bottom: 1rem;
      font-size: 6rem; opacity: 0.15;
    }
    .lessons-visual h3 {
      font-family: var(--font-display);
      font-size: 1.8rem; color: #fff; margin-bottom: 0.5rem;
    }
    .lessons-visual p { color: rgba(255,255,255,0.7); font-size: 0.9rem; font-weight: 300; max-width: 280px; }
    .lesson-preview-list { margin-top: 1.5rem; display: flex; flex-direction: column; gap: 0.6rem; }
    .lesson-preview-item {
      background: rgba(255,255,255,0.12);
      border: 1px solid rgba(255,255,255,0.2);
      border-radius: 8px; padding: 0.6rem 1rem;
      display: flex; align-items: center; gap: 0.75rem;
      font-size: 0.85rem; color: rgba(255,255,255,0.85);
    }
    .lesson-lock { font-size: 0.85rem; opacity: 0.5; margin-left: auto; }
    .lessons-text {}
    .lessons-text .section-title { margin-bottom: 1rem; }
    .lessons-text .section-sub { margin-bottom: 1.5rem; }
    .lesson-tracks { display: flex; flex-direction: column; gap: 0.85rem; margin-top: 1.5rem; }
    .lesson-track {
      display: flex; gap: 1rem; align-items: center;
      background: var(--color-bg); border: 1px solid var(--color-muted);
      border-radius: 10px; padding: 0.9rem 1.1rem;
    }
    .track-icon {
      width: 40px; height: 40px; border-radius: 8px; flex-shrink: 0;
      background: linear-gradient(135deg, var(--lang-color), var(--color-primary));
      display: flex; align-items: center; justify-content: center; font-size: 1.1rem;
      opacity: 0.45;
    }
    .track-name { font-size: 0.92rem; font-weight: 600; color: var(--color-primary); }
    .track-desc { font-size: 0.8rem; color: #94a3b8; }
    .track-badge {
      margin-left: auto; font-size: 0.68rem; font-weight: 600;
      letter-spacing: 0.06em; text-transform: uppercase;
      background: rgba(59,130,246,0.1); color: var(--color-primary-light);
      padding: 0.25em 0.75em; border-radius: 99px; white-space: nowrap;
    }
    .notify-form {
      display: flex; gap: 0.6rem; margin-top: 1.5rem; flex-wrap: wrap;
    }
    .notify-form input {
      flex: 1; min-width: 200px;
      border: 1px solid var(--color-muted);
      border-radius: var(--border-radius);
      padding: 0.65em 1em; font-size: 0.9rem;
      font-family: var(--font-body); outline: none;
      color: var(--color-text); background: var(--color-surface);
      transition: border-color var(--transition), box-shadow var(--transition);
      width: auto;
    }
    .notify-form input:focus {
      border-color: var(--color-primary-light);
      box-shadow: 0 0 0 3px rgba(59,130,246,0.12);
    }
    .notify-form button {
      background: var(--lang-color); color: #fff;
      border: none; border-radius: var(--border-radius);
      padding: 0.65em 1.4em; font-size: 0.9rem; font-weight: 600;
      font-family: var(--font-body); cursor: pointer;
      transition: filter var(--transition), transform var(--transition);
    }
    .notify-form button:hover { filter: brightness(1.1); transform: translateY(-1px); }

    /* ─── FOOTER ─── */
    .site-footer {
      background: var(--color-primary-dark);
      color: rgba(255,255,255,0.85); padding: 3rem 1.5rem 1.5rem;
    }
    .footer-inner {
      max-width: 1200px; margin: 0 auto;
      display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 3rem;
      padding-bottom: 2.5rem;
      border-bottom: 1px solid rgba(255,255,255,0.12);
    }
    .footer-brand-name { font-family: var(--font-display); font-size: 1.4rem; color: #fff; margin-bottom: 0.75rem; }
    .footer-brand-name span { color: var(--color-accent-light); }
    .footer-desc { font-size: 0.88rem; color: rgba(255,255,255,0.55); line-height: 1.7; }
    .footer-col h4 {
      font-size: 0.75rem; font-weight: 600; letter-spacing: 0.1em;
      text-transform: uppercase; color: var(--color-accent-light); margin-bottom: 1rem;
    }
    .footer-col ul { list-style: none; }
    .footer-col ul li { margin-bottom: 0.55rem; }
    .footer-col ul li a { font-size: 0.88rem; color: rgba(255,255,255,0.6); transition: color var(--transition); }
    .footer-col ul li a:hover { color: #fff; }
    .footer-bottom {
      max-width: 1200px; margin: 1.5rem auto 0;
      display: flex; justify-content: space-between; align-items: center;
      font-size: 0.82rem; color: rgba(255,255,255,0.4); flex-wrap: wrap; gap: 0.5rem;
    }

    /* ─── SCROLL TO TOP ─── */
    .scroller {
      background: var(--lang-color); border: none; border-radius: 50%;
      width: 44px; height: 44px; display: none; align-items: center;
      justify-content: center; position: fixed; bottom: 28px; right: 24px;
      color: #fff; font-size: 1.2rem; cursor: pointer; z-index: 1050;
      box-shadow: var(--shadow-md);
      transition: filter var(--transition), transform var(--transition);
    }
    .scroller.show { display: flex; }
    .scroller:hover { filter: brightness(1.15); transform: translateY(-2px); }

    /* ─── RESPONSIVE ─── */
    @media (max-width: 900px) {
      .overview-grid { grid-template-columns: 1fr; gap: 2rem; }
      .lessons-inner { grid-template-columns: 1fr; gap: 2.5rem; }
      .lang-hero-inner { grid-template-columns: 1fr; }
      .lang-flag-wrap { flex-direction: row; }
    }
    @media (max-width: 768px) {
      .hamburger { display: flex; }
      .navigation-items {
        flex-direction: column; position: absolute;
        top: 64px; left: 0; right: 0;
        background: var(--color-primary-dark);
        padding: 1rem 1.5rem; gap: 0;
        max-height: 0; overflow: hidden; opacity: 0;
        transition: max-height 0.4s ease, opacity 0.3s ease;
      }
      .navigation-items.show { max-height: 500px; opacity: 1; }
      .navigation-items a { padding: 0.75rem 0; border-bottom: 1px solid rgba(255,255,255,0.08); width: 100%; }
      .footer-inner { grid-template-columns: 1fr 1fr; gap: 2rem; }
      .stat-item { padding: 0 1rem; }
    }
    @media (max-width: 480px) {
      .footer-inner { grid-template-columns: 1fr; }
      .stat-bar-inner { gap: 1rem; justify-content: flex-start; }
      .stat-item { border-right: none; border-bottom: 1px solid var(--color-muted); padding: 0.5rem 0; }
      .stat-item:last-child { border-bottom: none; }
    }