:root {
    --navy: #0B1F4A;
    --blue: #1A56DB;
    --blue-mid: #2563EB;
    --sky: #EFF6FF;
    --teal: #0D9488;
    --green: #059669;
    --green-light: #ECFDF5;
    --amber: #F59E0B;
    --white: #FFFFFF;
    --gray-100: #F8FAFC;
    --gray-200: #E2E8F0;
    --gray-400: #94A3B8;
    --gray-600: #475569;
    --gray-800: #1E293B;
    --text: #0F172A;
    --radius: 14px;
    --shadow-sm: 0 2px 8px rgba(11,31,74,0.08);
    --shadow-md: 0 8px 32px rgba(11,31,74,0.12);
    --shadow-lg: 0 20px 60px rgba(11,31,74,0.16);
  }

  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

  html { scroll-behavior: smooth; }

  body {
    font-family: 'DM Sans', sans-serif;
    color: var(--text);
    background: var(--white);
    overflow-x: hidden;
    line-height: 1.6;
  }

  h1, h2, h3, h4 { font-family: 'Fraunces', serif; line-height: 1.2; }

  img { max-width: 100%; }

  a { text-decoration: none; color: inherit; }

  .container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 24px;
  }

  /* ─── NAVBAR ─── */
  nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255,255,255,0.96);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--gray-200);
    padding: 14px 0;
    transition: box-shadow 0.3s;
  }
  nav.scrolled { box-shadow: var(--shadow-md); }

  .nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
  }

  .logo {
    display: flex;
    align-items: center;
    gap: 10px;
  }
  .logo-icon {
    width: 36px; height: 36px;
    background: linear-gradient(135deg, var(--blue) 0%, var(--teal) 100%);
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    font-size: 18px;
  }
  .logo-text {
    font-family: 'Fraunces', serif;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--navy);
    letter-spacing: -0.02em;
  }
  .logo-text span { color: var(--blue); }

  .nav-links {
    display: flex;
    gap: 32px;
    list-style: none;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--gray-600);
  }
  .nav-links a:hover { color: var(--blue); }

  .nav-cta {
    background: var(--blue);
    color: var(--white);
    padding: 10px 22px;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    transition: background 0.2s, transform 0.15s;
    white-space: nowrap;
  }
  .nav-cta:hover { background: var(--navy); transform: translateY(-1px); }

  .hamburger { display: none; cursor: pointer; flex-direction: column; gap: 5px; }
  .hamburger span { width: 24px; height: 2px; background: var(--navy); border-radius: 2px; transition: 0.3s; }

  /* ─── HERO ─── */
  #hero {
    background: linear-gradient(160deg, #EFF6FF 0%, #F0FDF4 55%, #FEFCE8 100%);
    padding: 80px 0 70px;
    position: relative;
    overflow: hidden;
  }
  #hero::before {
    content: '';
    position: absolute;
    top: -120px; right: -120px;
    width: 500px; height: 500px;
    background: radial-gradient(circle, rgba(26,86,219,0.1) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
  }

  .hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
  }

  .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 50px;
    padding: 6px 14px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--green);
    margin-bottom: 20px;
    box-shadow: var(--shadow-sm);
    animation: fadeDown 0.6s ease both;
  }
  .badge-dot { width: 8px; height: 8px; background: var(--green); border-radius: 50%; animation: pulse 2s infinite; }

  @keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.3); }
  }

  @keyframes fadeDown {
    from { opacity: 0; transform: translateY(-16px); }
    to { opacity: 1; transform: translateY(0); }
  }
  @keyframes fadeUp {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
  }
  @keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
  }

  .hero-headline {
    font-size: clamp(2.2rem, 4vw, 3.2rem);
    font-weight: 700;
    color: var(--navy);
    letter-spacing: -0.03em;
    margin-bottom: 18px;
    animation: fadeUp 0.7s 0.1s ease both;
    line-height: 1.15;
  }
  .hero-headline em {
    font-style: italic;
    color: var(--blue);
  }

  .hero-sub {
    font-size: 1.05rem;
    color: var(--gray-600);
    margin-bottom: 32px;
    max-width: 480px;
    animation: fadeUp 0.7s 0.2s ease both;
  }

  .hero-cta-row {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    animation: fadeUp 0.7s 0.3s ease both;
    margin-bottom: 36px;
  }

  .btn-primary {
    background: linear-gradient(135deg, var(--blue) 0%, #1D4ED8 100%);
    color: var(--white);
    padding: 15px 32px;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 700;
    border: none;
    cursor: pointer;
    transition: transform 0.15s, box-shadow 0.2s;
    box-shadow: 0 6px 24px rgba(26,86,219,0.35);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
  }
  .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 32px rgba(26,86,219,0.45); }
  .btn-primary:active { transform: translateY(0); }

  .btn-secondary {
    background: transparent;
    color: var(--navy);
    padding: 14px 24px;
    border-radius: 50px;
    font-size: 0.95rem;
    font-weight: 600;
    border: 1.5px solid var(--gray-200);
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
  }
  .btn-secondary:hover { border-color: var(--blue); background: var(--sky); }

  .trust-row {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
    animation: fadeUp 0.7s 0.4s ease both;
  }
  .trust-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--gray-600);
    font-weight: 500;
  }
  .trust-item strong { color: var(--navy); font-size: 0.95rem; }
  .trust-icon { font-size: 1.1rem; }

  /* Hero visual */
  .hero-visual {
    animation: fadeIn 0.8s 0.3s ease both;
    position: relative;
  }
  .hero-card {
    background: var(--white);
    border-radius: 24px;
    padding: 28px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-200);
  }
  .hc-top {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--gray-100);
  }
  .hc-avatar {
    width: 44px; height: 44px;
    background: linear-gradient(135deg, var(--blue) 0%, var(--teal) 100%);
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 20px; color: white;
  }
  .hc-name { font-weight: 700; font-size: 0.95rem; color: var(--navy); }
  .hc-sub { font-size: 0.78rem; color: var(--gray-400); }
  .live-badge {
    margin-left: auto;
    background: #FEE2E2;
    color: #DC2626;
    padding: 4px 10px;
    border-radius: 50px;
    font-size: 0.72rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 5px;
  }
  .live-dot { width: 6px; height: 6px; background: #DC2626; border-radius: 50%; animation: pulse 1.5s infinite; }

  .hc-progress-label {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--gray-600);
    margin-bottom: 8px;
    font-weight: 500;
  }
  .hc-bar { background: var(--gray-200); border-radius: 10px; height: 8px; margin-bottom: 16px; overflow: hidden; }
  .hc-fill {
    height: 100%;
    border-radius: 10px;
    background: linear-gradient(90deg, var(--blue) 0%, var(--teal) 100%);
    animation: growBar 1.5s 0.8s ease both;
    width: 0;
  }
  @keyframes growBar { to { width: var(--w); } }

  .hc-stats {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 12px;
    margin-top: 8px;
  }
  .hc-stat {
    background: var(--gray-100);
    border-radius: 10px;
    padding: 12px;
    text-align: center;
  }
  .hc-stat-num { font-family: 'Fraunces', serif; font-size: 1.3rem; font-weight: 700; color: var(--navy); }
  .hc-stat-label { font-size: 0.72rem; color: var(--gray-400); margin-top: 2px; }

  .floating-tag {
    position: absolute;
    background: var(--white);
    border-radius: 12px;
    padding: 10px 14px;
    box-shadow: var(--shadow-md);
    font-size: 0.82rem;
    font-weight: 600;
    border: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
    animation: float 3s ease-in-out infinite;
  }
  @keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
  }
  .ft-1 { bottom: -16px; left: -20px; animation-delay: 0s; }
  .ft-2 { top: -16px; right: -10px; animation-delay: 1s; }

  /* ─── SECTION GENERIC ─── */
  section { padding: 80px 0; }
  .section-tag {
    display: inline-block;
    background: var(--sky);
    color: var(--blue);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 5px 14px;
    border-radius: 50px;
    margin-bottom: 16px;
  }
  .section-tag.green { background: var(--green-light); color: var(--green); }
  .section-tag.amber { background: #FFFBEB; color: #B45309; }

  .section-title {
    font-size: clamp(1.8rem, 3vw, 2.6rem);
    font-weight: 700;
    color: var(--navy);
    letter-spacing: -0.02em;
    margin-bottom: 16px;
  }
  .section-title em { font-style: italic; color: var(--blue); }

  .section-sub {
    font-size: 1.05rem;
    color: var(--gray-600);
    max-width: 560px;
    margin-bottom: 52px;
  }

  /* ─── PROBLEM ─── */
  #problem { background: var(--navy); padding: 80px 0; }
  #problem .section-tag { background: rgba(255,255,255,0.1); color: rgba(255,255,255,0.7); }
  #problem .section-title { color: var(--white); }
  #problem .section-sub { color: rgba(255,255,255,0.6); }

  .problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
  }
  .problem-card {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius);
    padding: 28px 24px;
    transition: background 0.2s, transform 0.2s;
  }
  .problem-card:hover { background: rgba(255,255,255,0.09); transform: translateY(-4px); }
  .problem-icon { font-size: 2rem; margin-bottom: 14px; }
  .problem-title { font-size: 1.05rem; font-weight: 700; color: var(--white); margin-bottom: 8px; }
  .problem-desc { font-size: 0.88rem; color: rgba(255,255,255,0.55); line-height: 1.6; }

  .problem-closing {
    text-align: center;
    margin-top: 48px;
    padding: 28px 32px;
    background: rgba(245,158,11,0.12);
    border: 1px solid rgba(245,158,11,0.3);
    border-radius: var(--radius);
    font-size: 1.05rem;
    color: var(--white);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
  }
  .problem-closing strong { color: var(--amber); }

  /* ─── SOLUTION ─── */
  #solution { background: var(--white); }
  .solution-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 24px;
  }
  .sol-card {
    background: var(--gray-100);
    border-radius: var(--radius);
    padding: 30px 24px;
    border: 1px solid var(--gray-200);
    transition: box-shadow 0.2s, transform 0.2s, border-color 0.2s;
  }
  .sol-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); border-color: #BFDBFE; }
  .sol-icon {
    width: 52px; height: 52px;
    border-radius: 14px;
    display: flex; align-items: center; justify-content: center;
    font-size: 22px;
    margin-bottom: 16px;
  }
  .sol-icon.blue { background: #DBEAFE; }
  .sol-icon.green { background: #D1FAE5; }
  .sol-icon.amber { background: #FEF3C7; }
  .sol-icon.purple { background: #EDE9FE; }
  .sol-icon.teal { background: #CCFBF1; }
  .sol-title { font-size: 1rem; font-weight: 700; color: var(--navy); margin-bottom: 8px; }
  .sol-desc { font-size: 0.85rem; color: var(--gray-600); line-height: 1.6; }

  /* ─── HOW IT WORKS ─── */
  #howitworks { background: var(--sky); }
  .steps-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    position: relative;
  }
  .steps-row::before {
    content: '';
    position: absolute;
    top: 32px;
    left: calc(12.5%);
    right: calc(12.5%);
    height: 2px;
    background: linear-gradient(90deg, var(--blue) 0%, var(--teal) 100%);
    z-index: 0;
  }
  .step {
    text-align: center;
    padding: 0 16px;
    position: relative;
    z-index: 1;
  }
  .step-num {
    width: 64px; height: 64px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--blue) 0%, var(--teal) 100%);
    color: var(--white);
    font-family: 'Fraunces', serif;
    font-size: 1.5rem;
    font-weight: 700;
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 20px;
    box-shadow: 0 4px 16px rgba(26,86,219,0.3);
    transition: transform 0.2s;
  }
  .step:hover .step-num { transform: scale(1.1); }
  .step-title { font-size: 1rem; font-weight: 700; color: var(--navy); margin-bottom: 8px; }
  .step-desc { font-size: 0.83rem; color: var(--gray-600); line-height: 1.6; }

  /* ─── SUBJECTS ─── */
  #subjects { background: var(--white); }
  .subjects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
  }
  .subject-card {
    border-radius: var(--radius);
    padding: 28px 20px;
    text-align: center;
    border: 1.5px solid var(--gray-200);
    transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
    cursor: default;
  }
  .subject-card:hover { border-color: var(--blue); transform: translateY(-4px); box-shadow: var(--shadow-md); }
  .subject-emoji { font-size: 2.4rem; margin-bottom: 12px; }
  .subject-name { font-size: 1.05rem; font-weight: 700; color: var(--navy); margin-bottom: 6px; }
  .subject-grades { font-size: 0.8rem; color: var(--gray-400); }
  .board-tags {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 40px;
    justify-content: center;
  }
  .board-tag {
    background: var(--sky);
    color: var(--blue);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 700;
    border: 1.5px solid #BFDBFE;
  }

  /* ─── RESULTS ─── */
  #results { background: linear-gradient(160deg, #F0FDF4 0%, #EFF6FF 100%); }
  .stats-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 60px;
  }
  .stat-box {
    background: var(--white);
    border-radius: var(--radius);
    padding: 32px 24px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
    transition: box-shadow 0.2s, transform 0.2s;
  }
  .stat-box:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
  .stat-number {
    font-family: 'Fraunces', serif;
    font-size: 3rem;
    font-weight: 700;
    color: var(--blue);
    line-height: 1;
    margin-bottom: 8px;
  }
  .stat-label { font-size: 0.9rem; color: var(--gray-600); font-weight: 500; }

  .testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
  .testi-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 28px 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
    transition: box-shadow 0.2s, transform 0.2s;
  }
  .testi-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
  .stars { color: var(--amber); font-size: 1rem; margin-bottom: 14px; letter-spacing: 2px; }
  .testi-quote { font-size: 0.9rem; color: var(--gray-600); line-height: 1.7; font-style: italic; margin-bottom: 20px; }
  .testi-quote::before { content: '"'; font-size: 1.8rem; font-family: 'Fraunces', serif; color: var(--blue); line-height: 0; vertical-align: -12px; margin-right: 4px; }
  .testi-author { display: flex; align-items: center; gap: 12px; }
  .testi-avatar {
    width: 44px; height: 44px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.1rem;
    font-weight: 700;
    color: white;
    flex-shrink: 0;
  }
  .av-blue { background: linear-gradient(135deg, #2563EB, #1D4ED8); }
  .av-green { background: linear-gradient(135deg, #059669, #047857); }
  .av-orange { background: linear-gradient(135deg, #D97706, #B45309); }
  .testi-name { font-weight: 700; font-size: 0.9rem; color: var(--navy); }
  .testi-detail { font-size: 0.78rem; color: var(--gray-400); margin-top: 2px; }
  .testi-improvement {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background: var(--green-light);
    color: var(--green);
    padding: 3px 10px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    margin-top: 6px;
  }

  /* ─── ABOUT ─── */
  #about { background: var(--white); }
  .about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
  }
  .about-img-wrap {
    position: relative;
  }
  .about-card {
    background: linear-gradient(135deg, var(--sky) 0%, #F0FDF4 100%);
    border-radius: 24px;
    padding: 48px;
    text-align: center;
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-md);
  }
  .tutor-avatar {
    width: 100px; height: 100px;
    background: linear-gradient(135deg, var(--blue) 0%, var(--teal) 100%);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 2.8rem;
    margin: 0 auto 20px;
    box-shadow: 0 8px 32px rgba(26,86,219,0.25);
  }
  .tutor-name { font-family: 'Fraunces', serif; font-size: 1.6rem; font-weight: 700; color: var(--navy); margin-bottom: 6px; }
  .tutor-title { color: var(--gray-600); font-size: 0.9rem; margin-bottom: 24px; }
  .tutor-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
  }
  .tutor-badge {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 50px;
    padding: 6px 14px;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--gray-800);
  }

  .about-points { list-style: none; display: flex; flex-direction: column; gap: 20px; }
  .about-point { display: flex; gap: 16px; align-items: flex-start; }
  .ap-icon {
    width: 44px; height: 44px;
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
  }
  .ap-icon.blue { background: #DBEAFE; }
  .ap-icon.green { background: #D1FAE5; }
  .ap-icon.amber { background: #FEF3C7; }
  .ap-icon.teal { background: #CCFBF1; }
  .ap-title { font-weight: 700; font-size: 0.95rem; color: var(--navy); margin-bottom: 4px; }
  .ap-desc { font-size: 0.85rem; color: var(--gray-600); line-height: 1.6; }

  /* ─── WHY CHOOSE ─── */
  #why { background: var(--gray-100); }
  .why-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }
  .why-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 28px 24px;
    border: 1px solid var(--gray-200);
    display: flex;
    gap: 18px;
    align-items: flex-start;
    transition: box-shadow 0.2s, transform 0.2s;
  }
  .why-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
  .why-icon {
    width: 50px; height: 50px;
    border-radius: 14px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.4rem;
    flex-shrink: 0;
  }
  .why-icon.blue { background: #DBEAFE; }
  .why-icon.green { background: #D1FAE5; }
  .why-icon.amber { background: #FEF3C7; }
  .why-icon.teal { background: #CCFBF1; }
  .why-icon.purple { background: #EDE9FE; }
  .why-icon.rose { background: #FFE4E6; }
  .why-title { font-weight: 700; font-size: 0.95rem; color: var(--navy); margin-bottom: 6px; }
  .why-desc { font-size: 0.85rem; color: var(--gray-600); line-height: 1.6; }

  /* ─── FINAL CTA ─── */
  #finalcta {
    background: linear-gradient(135deg, var(--navy) 0%, #1E3A8A 100%);
    padding: 80px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
  }
  #finalcta::before {
    content: '';
    position: absolute;
    top: -100px; left: -100px;
    width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(26,86,219,0.3) 0%, transparent 70%);
    border-radius: 50%;
  }
  #finalcta::after {
    content: '';
    position: absolute;
    bottom: -100px; right: -100px;
    width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(13,148,136,0.3) 0%, transparent 70%);
    border-radius: 50%;
  }
  .cta-inner { position: relative; z-index: 1; }
  .urgency-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(245,158,11,0.15);
    border: 1px solid rgba(245,158,11,0.4);
    border-radius: 50px;
    padding: 7px 18px;
    color: var(--amber);
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 24px;
  }
  .cta-headline { font-size: clamp(1.8rem, 3.5vw, 3rem); color: var(--white); margin-bottom: 16px; letter-spacing: -0.02em; }
  .cta-sub { font-size: 1.05rem; color: rgba(255,255,255,0.65); margin-bottom: 36px; max-width: 520px; margin-left: auto; margin-right: auto; }
  .cta-btn-big {
    background: linear-gradient(135deg, #F59E0B 0%, #D97706 100%);
    color: var(--white);
    padding: 18px 44px;
    border-radius: 50px;
    font-size: 1.15rem;
    font-weight: 800;
    border: none;
    cursor: pointer;
    transition: transform 0.15s, box-shadow 0.2s;
    box-shadow: 0 8px 32px rgba(245,158,11,0.4);
    display: inline-flex;
    align-items: center;
    gap: 10px;
  }
  .cta-btn-big:hover { transform: translateY(-3px); box-shadow: 0 14px 40px rgba(245,158,11,0.55); }
  .cta-note { font-size: 0.82rem; color: rgba(255,255,255,0.4); margin-top: 16px; }

  /* ─── FORM ─── */
  #contact { background: var(--white); padding: 80px 0; }
  .form-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
  }
  .form-left { }
  .form-perks { list-style: none; display: flex; flex-direction: column; gap: 14px; margin-top: 24px; }
  .form-perk {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.9rem;
    color: var(--gray-600);
    font-weight: 500;
  }
  .perk-check {
    width: 28px; height: 28px;
    background: var(--green-light);
    color: var(--green);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 0.85rem;
    flex-shrink: 0;
    font-weight: 700;
  }

  .contact-form {
    background: var(--gray-100);
    border-radius: 20px;
    padding: 36px 32px;
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
  }
  .form-title { font-size: 1.35rem; font-weight: 700; color: var(--navy); margin-bottom: 6px; font-family: 'Fraunces', serif; }
  .form-subtitle { font-size: 0.85rem; color: var(--gray-400); margin-bottom: 24px; }
  .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
  .form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
  .form-group label { font-size: 0.8rem; font-weight: 600; color: var(--gray-800); }
  .form-group input,
  .form-group select {
    background: var(--white);
    border: 1.5px solid var(--gray-200);
    border-radius: 10px;
    padding: 11px 14px;
    font-size: 0.9rem;
    font-family: 'DM Sans', sans-serif;
    color: var(--text);
    transition: border-color 0.2s, box-shadow 0.2s;
    outline: none;
    width: 100%;
  }
  .form-group input:focus,
  .form-group select:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(26,86,219,0.1); }
  .submit-btn {
    width: 100%;
    background: linear-gradient(135deg, var(--blue) 0%, #1D4ED8 100%);
    color: var(--white);
    padding: 14px;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 700;
    border: none;
    cursor: pointer;
    transition: transform 0.15s, box-shadow 0.2s;
    box-shadow: 0 6px 20px rgba(26,86,219,0.3);
    margin-top: 4px;
    font-family: 'DM Sans', sans-serif;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
  }
  .submit-btn:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(26,86,219,0.4); }
  .form-disclaimer { font-size: 0.76rem; color: var(--gray-400); text-align: center; margin-top: 12px; }

  /* ─── FOOTER ─── */
  footer {
    background: var(--navy);
    padding: 40px 0 24px;
    color: rgba(255,255,255,0.6);
    font-size: 0.85rem;
  }
  .footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    flex-wrap: wrap;
    gap: 16px;
  }
  .footer-logo { color: white; font-family: 'Fraunces', serif; font-size: 1.2rem; font-weight: 700; }
  .footer-logo span { color: #60A5FA; }
  .footer-bottom { text-align: center; margin-top: 20px; font-size: 0.78rem; }

  /* ─── STICKY CTA ─── */
  .sticky-cta {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 999;
    background: linear-gradient(135deg, var(--blue) 0%, #1D4ED8 100%);
    color: white;
    padding: 13px 28px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 700;
    box-shadow: 0 8px 32px rgba(26,86,219,0.45);
    cursor: pointer;
    display: none;
    align-items: center;
    gap: 8px;
    transition: transform 0.15s;
    white-space: nowrap;
    border: none;
  }
  .sticky-cta:hover { transform: translateX(-50%) translateY(-3px); }
  .sticky-cta.visible { display: flex; animation: fadeUp 0.4s ease; }

  /* ─── WHATSAPP ─── */
  .whatsapp-btn {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 999;
    width: 56px; height: 56px;
    background: #25D366;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 6px 24px rgba(37,211,102,0.45);
    transition: transform 0.2s, box-shadow 0.2s;
    cursor: pointer;
    text-decoration: none;
  }
  .whatsapp-btn:hover { transform: scale(1.1); box-shadow: 0 10px 32px rgba(37,211,102,0.55); }
  .whatsapp-btn svg { width: 28px; height: 28px; }

  /* ─── TOAST ─── */
  .toast {
    position: fixed;
    top: 90px;
    right: 24px;
    z-index: 9999;
    background: var(--navy);
    color: white;
    padding: 14px 20px;
    border-radius: 12px;
    font-size: 0.88rem;
    font-weight: 600;
    box-shadow: var(--shadow-lg);
    display: none;
    align-items: center;
    gap: 10px;
    max-width: 300px;
    animation: slideIn 0.3s ease;
  }
  @keyframes slideIn {
    from { opacity: 0; transform: translateX(20px); }
    to { opacity: 1; transform: translateX(0); }
  }
  .toast.visible { display: flex; }

  /* ─── SCROLL REVEAL ─── */
  .reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
  }
  .reveal.visible {
    opacity: 1;
    transform: translateY(0);
  }
  .reveal-delay-1 { transition-delay: 0.1s; }
  .reveal-delay-2 { transition-delay: 0.2s; }
  .reveal-delay-3 { transition-delay: 0.3s; }

  /* ─── RESPONSIVE ─── */
  @media (max-width: 900px) {
    .hero-grid { grid-template-columns: 1fr; gap: 40px; }
    .hero-visual { display: none; }
    .steps-row { grid-template-columns: repeat(2, 1fr); gap: 40px; }
    .steps-row::before { display: none; }
    .testimonials-grid { grid-template-columns: 1fr; }
    .stats-row { grid-template-columns: 1fr 1fr; }
    .about-grid { grid-template-columns: 1fr; gap: 40px; }
    .why-grid { grid-template-columns: 1fr; }
    .form-wrapper { grid-template-columns: 1fr; gap: 40px; }
    .form-row { grid-template-columns: 1fr; }
    .nav-links { display: none; }
    .hamburger { display: flex; }
    .nav-links.open {
      display: flex;
      flex-direction: column;
      position: absolute;
      top: 100%;
      left: 0; right: 0;
      background: white;
      padding: 20px 24px;
      border-bottom: 1px solid var(--gray-200);
      box-shadow: var(--shadow-md);
      gap: 16px;
    }
  }

  @media (max-width: 600px) {
    section { padding: 60px 0; }
    .stats-row { grid-template-columns: 1fr; }
    .steps-row { grid-template-columns: 1fr; }
    .subjects-grid { grid-template-columns: 1fr 1fr; }
    .cta-btn-big { padding: 15px 28px; font-size: 1rem; }
    .contact-form { padding: 24px 20px; }
    .hero-cta-row { flex-direction: column; align-items: flex-start; }
  }