/* ===== RESET ===== */
*, *::before, *::after { box-sizing: border-box; }
body { margin: 0; }
img, picture, video { display: block; max-width: 100%; }

/* ===== VARIABLES ===== */
:root {
  --primary: #2D6BE4;
  --primary-dark: #1E55C8;
  --primary-light: #EEF3FD;
  --accent: #FF6B35;
  --accent-light: #FFF0EA;
  --bg: #F7F9FF;
  --surface: #FFFFFF;
  --surface-2: #F0F4FF;
  --ink: #1A1F36;
  --ink-mute: #6B7280;
  --ink-light: #9CA3AF;
  --border: #E5E9F5;
  --success: #10B981;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md: 0 4px 16px rgba(45,107,228,.10), 0 2px 6px rgba(0,0,0,.06);
  --shadow-lg: 0 12px 40px rgba(45,107,228,.15), 0 4px 12px rgba(0,0,0,.08);
  --radius: 12px;
  --radius-lg: 20px;
  --s-1: 4px;
  --s-2: 8px;
  --s-3: 12px;
  --s-4: 16px;
  --s-6: 24px;
  --s-8: 32px;
  --s-12: 48px;
  --s-16: 64px;
}

/* ===== BASE ===== */
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
}
h1,h2,h3,h4,h5,h6 {
  font-family: 'Manrope', sans-serif;
  line-height: 1.2;
  margin: 0;
}
p { margin: 0; }
ul { list-style: none; margin: 0; padding: 0; }
a { text-decoration: none; color: inherit; }

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--s-6);
}

.section {
  padding: var(--s-16) 0;
}

/* ===== SECTION HEADERS ===== */
.section-header {
  text-align: center;
  margin-bottom: var(--s-12);
}
.section-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--primary);
  background: var(--primary-light);
  padding: var(--s-1) var(--s-3);
  border-radius: 100px;
  margin-bottom: var(--s-3);
}
.section-label--light {
  color: rgba(255,255,255,.9);
  background: rgba(255,255,255,.15);
}
.section-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  color: var(--ink);
  margin-bottom: var(--s-3);
}
.section-sub {
  font-size: 17px;
  color: var(--ink-mute);
  max-width: 520px;
  margin: 0 auto;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-2);
  padding: 14px var(--s-8);
  border-radius: var(--radius);
  font-family: 'Manrope', sans-serif;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all .2s ease;
  white-space: nowrap;
}
.btn--primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.btn--primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(45,107,228,.35);
}
.btn--ghost {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn--ghost:hover {
  background: var(--primary-light);
  transform: translateY(-1px);
}
.btn--sm {
  padding: 8px var(--s-4);
  font-size: 14px;
}
.btn--full { width: 100%; }

/* ===== HEADER ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: var(--s-6);
}
.logo {
  font-family: 'Manrope', sans-serif;
  font-size: 22px;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: -.02em;
}
.logo-dot { color: var(--accent); }
.logo--footer { font-size: 20px; }

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--s-2);
}
.nav-link {
  padding: var(--s-2) var(--s-3);
  border-radius: 8px;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-mute);
  transition: all .2s;
}
.nav-link:hover { color: var(--primary); background: var(--primary-light); }
.nav-link--cta {
  background: var(--primary);
  color: #fff;
  padding: var(--s-2) var(--s-4);
  font-weight: 700;
}
.nav-link--cta:hover { background: var(--primary-dark); color: #fff; }

.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--s-2);
}
.burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: all .3s;
}
.burger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.is-open span:nth-child(2) { opacity: 0; }
.burger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== HERO ===== */
.hero {
  background: linear-gradient(135deg, #EEF3FD 0%, #F7F9FF 60%, #FFF0EA 100%);
  padding: var(--s-16) 0;
  overflow: hidden;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s-12);
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: var(--s-2) var(--s-4);
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-mute);
  margin-bottom: var(--s-4);
  box-shadow: var(--shadow-sm);
}
.hero-title {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 800;
  color: var(--ink);
  margin-bottom: var(--s-4);
  letter-spacing: -.02em;
}
.hero-accent { color: var(--primary); }
.hero-desc {
  font-size: 18px;
  color: var(--ink-mute);
  margin-bottom: var(--s-8);
  max-width: 480px;
}
.hero-actions {
  display: flex;
  gap: var(--s-3);
  flex-wrap: wrap;
  margin-bottom: var(--s-8);
}
.hero-trust {
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
}
.trust-item {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  font-size: 14px;
  color: var(--ink-mute);
}
.trust-item svg { color: var(--success); flex-shrink: 0; }

.hero-image-wrap {
  position: relative;
}
.hero-img {
  width: 100%;
  aspect-ratio: 6/5;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}
.hero-badge-float {
  position: absolute;
  background: var(--surface);
  border-radius: var(--radius);
  padding: var(--s-3) var(--s-4);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: var(--s-3);
}
.hero-badge-float--1 { bottom: var(--s-8); left: calc(-1 * var(--s-8)); }
.hero-badge-float--2 { top: var(--s-8); right: calc(-1 * var(--s-6)); }
.badge-num {
  font-family: 'Manrope', sans-serif;
  font-size: 24px;
  font-weight: 800;
  color: var(--primary);
}
.badge-label {
  font-size: 12px;
  color: var(--ink-mute);
  line-height: 1.3;
}

/* ===== STATS ===== */
.stats {
  background: var(--primary);
  padding: var(--s-12) 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--s-6);
  text-align: center;
}
.stat-item { display: flex; flex-direction: column; gap: var(--s-1); }
.stat-num {
  font-family: 'Manrope', sans-serif;
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  color: #fff;
}
.stat-label {
  font-size: 14px;
  color: rgba(255,255,255,.7);
}

/* ===== ABOUT ===== */
.about { background: var(--surface); }
.about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s-16);
  align-items: center;
}
.about-desc {
  font-size: 17px;
  color: var(--ink-mute);
  margin-bottom: var(--s-8);
  margin-top: var(--s-4);
}
.about-features {
  display: flex;
  flex-direction: column;
  gap: var(--s-6);
}
.feature {
  display: flex;
  gap: var(--s-4);
  align-items: flex-start;
}
.feature-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: var(--primary-light);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
}
.feature strong {
  display: block;
  font-family: 'Manrope', sans-serif;
  font-weight: 700;
  margin-bottom: var(--s-1);
}
.feature p { font-size: 14px; color: var(--ink-mute); }

.about-image-wrap {
  position: relative;
}
.about-img {
  width: 100%;
  aspect-ratio: 4/5;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

/* ===== CARDS GRID ===== */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--s-6);
  align-items: stretch;
}
.card {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .2s, transform .2s;
}
.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.card__image-wrap { flex-shrink: 0; }
.card__image {
  aspect-ratio: 4/3;
  object-fit: cover;
  width: 100%;
  display: block;
}
.card__body {
  flex: 1 1 auto;
  padding: var(--s-6);
}
.card__footer {
  margin-top: auto;
  padding: var(--s-4) var(--s-6);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-3);
}
.card__title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: var(--s-3);
  margin-top: var(--s-3);
}
.card__text {
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
  font-size: 15px;
  color: var(--ink-mute);
  line-height: 1.6;
}
.card-meta {
  font-size: 13px;
  color: var(--ink-mute);
}

/* Level badges */
.level-badge {
  display: inline-block;
  padding: var(--s-1) var(--s-3);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .04em;
}
.level-badge--a { background: #DCFCE7; color: #15803D; }
.level-badge--b { background: #DBEAFE; color: #1D4ED8; }
.level-badge--c { background: #F3E8FF; color: #7E22CE; }

/* ===== LEVELS SECTION ===== */
.levels { background: var(--bg); }

/* ===== LEVEL TEST ===== */
.level-test {
  background: linear-gradient(135deg, var(--primary) 0%, #1E55C8 100%);
  padding: var(--s-16) 0;
}
.test-card {
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: var(--radius-lg);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s-12);
  align-items: center;
  overflow: hidden;
}
.test-card-content { padding: var(--s-12); }
.test-title {
  font-size: clamp(26px, 3.5vw, 38px);
  font-weight: 800;
  color: #fff;
  margin-bottom: var(--s-4);
  margin-top: var(--s-3);
}
.test-desc {
  color: rgba(255,255,255,.8);
  font-size: 16px;
  margin-bottom: var(--s-8);
}
.test-card-image img {
  width: 100%;
  height: 100%;
  min-height: 320px;
  object-fit: cover;
  display: block;
}

/* Forms */
.test-form, .contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s-4);
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
}
.form-group label {
  font-size: 14px;
  font-weight: 600;
  color: rgba(255,255,255,.9);
}
.contact-form .form-group label { color: var(--ink); }
.form-group input,
.form-group select {
  padding: 12px var(--s-4);
  border-radius: var(--radius);
  border: 1.5px solid rgba(255,255,255,.25);
  background: rgba(255,255,255,.12);
  color: #fff;
  font-size: 15px;
  font-family: 'Inter', sans-serif;
  outline: none;
  transition: border-color .2s;
}
.form-group input::placeholder { color: rgba(255,255,255,.5); }
.form-group input:focus,
.form-group select:focus { border-color: rgba(255,255,255,.6); }
.contact-form .form-group input,
.contact-form .form-group select {
  border-color: var(--border);
  background: var(--surface);
  color: var(--ink);
}
.contact-form .form-group input::placeholder { color: var(--ink-light); }
.contact-form .form-group input:focus,
.contact-form .form-group select:focus { border-color: var(--primary); }
.form-group select option { color: var(--ink); background: var(--surface); }
.form-note {
  font-size: 12px;
  color: var(--ink-mute);
  text-align: center;
}

/* ===== PRICING ===== */
.pricing { background: var(--surface); }
.pricing-toggle {
  display: flex;
  justify-content: center;
  gap: var(--s-2);
  margin-bottom: var(--s-8);
  background: var(--surface-2);
  border-radius: 100px;
  padding: var(--s-1);
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
}
.toggle-btn {
  padding: 10px var(--s-6);
  border-radius: 100px;
  border: none;
  background: transparent;
  font-family: 'Manrope', sans-serif;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-mute);
  cursor: pointer;
  transition: all .2s;
}
.toggle-btn--active {
  background: var(--surface);
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--s-6);
  align-items: stretch;
  margin-bottom: var(--s-12);
}
.price-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--s-8);
  position: relative;
  transition: box-shadow .2s, transform .2s;
}
.price-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.price-card--featured {
  border-color: var(--primary);
  background: var(--primary-light);
  box-shadow: var(--shadow-md);
}
.price-card__badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  padding: var(--s-1) var(--s-4);
  border-radius: 100px;
  white-space: nowrap;
}
.price-card__header { margin-bottom: var(--s-6); }
.price-card__name {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: var(--s-3);
}
.price-card__price {
  display: flex;
  align-items: baseline;
  gap: var(--s-1);
  margin-bottom: var(--s-2);
}
.price-num {
  font-family: 'Manrope', sans-serif;
  font-size: 36px;
  font-weight: 800;
  color: var(--primary);
}
.price-cur {
  font-size: 16px;
  color: var(--ink-mute);
  font-weight: 500;
}
.price-card__sub { font-size: 14px; color: var(--ink-mute); }
.price-card__features {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
  margin-bottom: var(--s-6);
}
.price-card__features li {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  font-size: 14px;
  color: var(--ink);
}
.price-card__features li svg { flex-shrink: 0; color: var(--success); }
.price-card__feature--muted { color: var(--ink-light) !important; }
.price-card__feature--muted svg { color: var(--ink-light) !important; }
.price-card__footer { margin-top: auto; }

.pricing-table-wrap {
  margin-top: var(--s-12);
  padding-top: var(--s-8);
  border-top: 1px solid var(--border);
}
.pricing-table-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: var(--s-6);
  color: var(--ink);
}

/* ===== DATA TABLE ===== */
.data-table { width: 100%; border-collapse: collapse; }
.data-table th, .data-table td { padding: 12px 16px; text-align: left; }
.data-table thead { background: var(--surface-2); }
.data-table th { font-weight: 600; font-family: 'Manrope', sans-serif; font-size: 14px; color: var(--ink-mute); }
.data-table tbody tr { border-bottom: 1px solid var(--border); }
.data-table tbody tr:last-child { border-bottom: none; }
.data-table tbody td { font-size: 15px; }

@media (max-width: 640px) {
  .data-table thead { position: absolute; left: -9999px; }
  .data-table tr {
    display: block;
    border: 1px solid var(--border);
    border-radius: 8px;
    margin-bottom: 12px;
    padding: 12px;
  }
  .data-table td {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px 0;
    border: none;
    gap: 12px;
  }
  .data-table td::before {
    content: attr(data-label);
    font-weight: 600;
    color: var(--ink-mute);
    flex: 0 0 auto;
    font-size: 13px;
  }
}

/* ===== TESTIMONIALS ===== */
.testimonials { background: var(--bg); }
.card--review .card__body { padding: var(--s-6); }
.review-stars {
  color: #F59E0B;
  font-size: 18px;
  margin-bottom: var(--s-3);
  letter-spacing: 2px;
}
.review-text {
  font-size: 15px;
  color: var(--ink);
  line-height: 1.7;
  font-style: italic;
}
.review-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-3);
}
.reviewer {
  display: flex;
  align-items: center;
  gap: var(--s-3);
}
.reviewer-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
}
.reviewer strong { display: block; font-size: 14px; font-weight: 700; }
.reviewer span { font-size: 12px; color: var(--ink-mute); }
.review-level {
  font-size: 12px;
  font-weight: 700;
  color: var(--primary);
  background: var(--primary-light);
  padding: var(--s-1) var(--s-2);
  border-radius: 6px;
  white-space: nowrap;
}

/* ===== FAQ ===== */
.faq { background: var(--surface); }
.faq-inner { max-width: 760px; margin: 0 auto; }
.faq-list { display: flex; flex-direction: column; gap: var(--s-3); }
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--s-4) var(--s-6);
  font-family: 'Manrope', sans-serif;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  gap: var(--s-4);
  transition: background .2s;
}
.faq-question::-webkit-details-marker { display: none; }
.faq-question:hover { background: var(--surface-2); }
.faq-arrow { flex-shrink: 0; transition: transform .3s; color: var(--ink-mute); }
details[open] .faq-arrow { transform: rotate(180deg); }
.faq-answer {
  padding: 0 var(--s-6) var(--s-6);
  font-size: 15px;
  color: var(--ink-mute);
  line-height: 1.7;
  border-top: 1px solid var(--border);
  padding-top: var(--s-4);
}

/* ===== CONTACT ===== */
.contact {
  background: linear-gradient(135deg, #F0F4FF 0%, #F7F9FF 100%);
}
.contact-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s-12);
  padding: var(--s-12);
  border: 1px solid var(--border);
}
.contact-title {
  font-size: clamp(26px, 3.5vw, 38px);
  font-weight: 800;
  color: var(--ink);
  margin-bottom: var(--s-4);
  margin-top: var(--s-3);
}
.contact-desc {
  font-size: 16px;
  color: var(--ink-mute);
  margin-bottom: var(--s-8);
}
.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
}
.contact-info-item {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  font-size: 15px;
  color: var(--ink-mute);
}
.contact-info-item svg { color: var(--primary); flex-shrink: 0; }

/* ===== FOOTER ===== */
.site-footer {
  background: var(--ink);
  color: rgba(255,255,255,.8);
}
.footer-inner {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: var(--s-8);
  padding-top: var(--s-12);
  padding-bottom: var(--s-12);
  align-items: start;
}
.footer-brand .logo { color: #fff; }
.footer-tagline {
  font-size: 14px;
  color: rgba(255,255,255,.5);
  margin-top: var(--s-2);
}
.footer-nav ul {
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
}
.footer-nav a {
  font-size: 15px;
  color: rgba(255,255,255,.7);
  transition: color .2s;
}
.footer-nav a:hover { color: #fff; }
.footer-contacts {
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
}
.footer-contacts p { font-size: 15px; color: rgba(255,255,255,.7); }
.footer-socials {
  display: flex;
  gap: var(--s-3);
  margin-top: var(--s-2);
}
.social-link {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,.7);
  transition: all .2s;
}
.social-link:hover { background: var(--primary); color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding: var(--s-4) 0;
}
.footer-bottom p { font-size: 13px; color: rgba(255,255,255,.4); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; gap: var(--s-8); }
  .hero-image-wrap { max-width: 560px; margin: 0 auto; }
  .hero-badge-float--1 { left: var(--s-4); }
  .hero-badge-float--2 { right: var(--s-4); }
  .about-inner { grid-template-columns: 1fr; gap: var(--s-8); }
  .about-image-wrap { max-width: 480px; }
  .about-img { aspect-ratio: 16/9; }
  .test-card { grid-template-columns: 1fr; }
  .test-card-image { display: none; }
  .test-card-content { padding: var(--s-8); }
  .contact-card { grid-template-columns: 1fr; gap: var(--s-8); padding: var(--s-8); }
  .pricing-grid { grid-template-columns: 1fr 1fr; }
  .pricing-grid .price-card:last-child { grid-column: span 2; max-width: 400px; margin: 0 auto; width: 100%; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .section { padding: var(--s-12) 0; }
  .nav { display: none; position: fixed; top: 68px; left: 0; right: 0; background: var(--surface); border-bottom: 1px solid var(--border); padding: var(--s-4); z-index: 99; box-shadow: var(--shadow-md); }
  .nav.is-open { display: block; }
  .nav-list { flex-direction: column; gap: var(--s-2); }
  .nav-link { display: block; padding: var(--s-3) var(--s-4); }
  .burger { display: flex; }
  .hero { padding: var(--s-12) 0; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .hero-badge-float { display: none; }
  .cards { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  .pricing-grid .price-card:last-child { grid-column: auto; max-width: 100%; }
  .form-row { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: var(--s-8); padding-top: var(--s-8); padding-bottom: var(--s-8); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .section-title { font-size: 26px; }
  .pricing-toggle { width: 100%; }
  .toggle-btn { flex: 1; text-align: center; }
}