/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary: #bf0000;
  --primary-dark: #8f0000;
  --primary-light: #ff3333;
  --accent: #ff6b00;
  --text: #1a1a2e;
  --text-muted: #5a5a7a;
  --bg: #ffffff;
  --bg-alt: #f8f9ff;
  --bg-dark: #0f0f23;
  --border: #e2e4f0;
  --success: #00a854;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
  --font: 'Inter', system-ui, -apple-system, sans-serif;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ===== TYPOGRAPHY ===== */
h1 { font-size: clamp(2rem, 5vw, 3.2rem); font-weight: 800; line-height: 1.15; }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 700; line-height: 1.25; }
h3 { font-size: 1.15rem; font-weight: 600; }
h4 { font-size: 0.95rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-muted); }

.section-sub {
  color: var(--text-muted);
  font-size: 1.1rem;
  margin-top: 0.75rem;
  max-width: 620px;
}

.highlight { color: var(--primary); }

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 2px solid transparent;
  text-decoration: none !important;
}

.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(191,0,0,0.3);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-outline:hover {
  background: var(--primary);
  color: #fff;
}

.btn-nav {
  background: var(--primary);
  color: #fff;
  padding: 9px 20px;
  font-size: 0.88rem;
}
.btn-nav:hover { background: var(--primary-dark); }

.btn-lg { padding: 16px 32px; font-size: 1.05rem; }
.btn-xl { padding: 20px 48px; font-size: 1.15rem; border-radius: 12px; }

/* ===== HEADER ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
}

.nav-container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 32px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text);
  text-decoration: none;
  white-space: nowrap;
}
.logo-icon { font-size: 1.4rem; }

.nav-links {
  display: flex;
  list-style: none;
  gap: 28px;
  margin: 0;
  flex: 1;
}
.nav-links a {
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.93rem;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--primary); text-decoration: none; }
.nav-cta { display: none !important; }
.nav-lang-divider { color: var(--border); font-size: 0.85rem; }
.nav-lang { color: var(--text-muted) !important; font-size: 0.88rem; }

/* ===== HERO PLAN CARD ===== */
.hero-plan-card { border-radius:14px; overflow:hidden; background:#fff; display:inline-flex; flex-direction:column; align-items:stretch; min-width:300px; }
.hero-plan-card-header { background:#bf0000; padding:10px 32px; text-align:center; }
.hero-plan-card-body { padding:20px 32px 16px; display:flex; flex-direction:column; align-items:center; gap:10px; }
.hero-plan-row { display:flex; align-items:center; gap:16px; }
.hero-plan-box { text-align:center; min-width:110px; }
.hero-plan-label { font-size:1.1rem; font-weight:700; color:#bf0000; margin-bottom:8px; }
.hero-plan-sep { font-size:1.4rem; color:#999; margin-top:24px; }
.hero-plan-price { font-size:2.2rem; font-weight:800; color:#bf0000; line-height:1; }

@media (max-width: 640px) {
  .hero-plan-card { min-width:0; width:100%; max-width:100%; }
  .hero-plan-card-header { padding:10px 12px; }
  .hero-plan-card-body { padding:12px 12px 10px; }
  .hero-plan-row { gap:4px; flex-wrap:nowrap; justify-content:center; }
  .hero-plan-box { min-width:0; flex:1; }
  .hero-plan-label { font-size:0.78rem; }
  .hero-plan-sep { margin-top:0; font-size:1.2rem; }
  html[lang="vi"] .hero-plan-price,
  html[lang="id"] .hero-plan-price { font-size:1.5rem; }
  html[lang="vi"] .hero-plan-label,
  html[lang="id"] .hero-plan-label { font-size:0.7rem; }
}

/* ===== HERO ===== */
.hero {
  background: linear-gradient(135deg, #0f0f23 0%, #1a0a0a 50%, #2d0000 100%);
  color: #fff;
  padding: 80px 0 90px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}

.hero-badge {
  display: inline-block;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  color: #fff;
  padding: 6px 16px;
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero h1 {
  color: #fff;
  margin-bottom: 16px;
}

.hero-sub {
  color: rgba(255,255,255,0.75);
  font-size: 1.1rem;
  margin-bottom: 32px;
}

.hero-price {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 4px;
  margin-bottom: 32px;
}
.price-from { color: rgba(255,255,255,0.6); font-size: 1rem; }
.price-amount { font-size: 3rem; font-weight: 800; color: #fff; }
.price-period { color: rgba(255,255,255,0.6); font-size: 1.1rem; }

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.hero .btn-outline {
  color: #fff;
  border-color: rgba(255,255,255,0.4);
}
.hero .btn-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.6);
}

.hero-checks {
  list-style: none;
  display: flex;
  gap: 16px 32px;
  justify-content: center;
  flex-wrap: wrap;
  color: rgba(255,255,255,0.95);
  font-size: 1.05rem;
  font-weight: 500;
}

/* ===== TRUST BAR ===== */
.trust-bar {
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
  padding: 28px 0;
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  text-align: center;
  gap: 20px;
}

.trust-number {
  display: block;
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--primary);
}
.trust-source {
  display: block;
  font-size: 0.68rem;
  margin-top: 3px;
}
.trust-source a { color: var(--text-muted); text-decoration: underline; }

.trust-footnote {
  text-align: center;
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 12px;
}
.trust-footnote a { color: var(--text-muted); text-decoration: underline; }

.trust-label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ===== WHY SECTION ===== */
.why-section {
  padding: 80px 0;
}

.why-section h2 { margin-bottom: 8px; }

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.feature-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: box-shadow 0.2s, transform 0.2s;
}
.feature-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.feature-icon {
  font-size: 2.2rem;
  margin-bottom: 16px;
}
.feature-card h3 { margin-bottom: 8px; }
.feature-card p { color: var(--text-muted); font-size: 0.93rem; line-height: 1.6; }

/* ===== PLANS SECTION ===== */
.plans-section {
  padding: 80px 0;
  background: var(--bg-alt);
}

.plans-section h2 { margin-bottom: 8px; }

.plans-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.plan-card {
  background: var(--bg);
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: center;
  position: relative;
  transition: box-shadow 0.2s;
}

.plan-card--popular {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(191,0,0,0.08);
}

.popular-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary);
  color: #fff;
  padding: 4px 16px;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 700;
  white-space: nowrap;
}

.plan-tier {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.plan-data {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.plan-price {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 24px;
}
.plan-price span { font-size: 1rem; color: var(--text-muted); font-weight: 500; }

.plan-features {
  list-style: none;
  text-align: left;
  margin-bottom: 20px;
}
.plan-features li {
  padding: 7px 0;
  font-size: 0.9rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 8px;
}
.plan-features li::before { content: '✓'; color: var(--success); font-weight: 700; flex-shrink: 0; }

.plan-ideal {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 20px;
  font-style: italic;
}

.plans-note {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-top: 20px;
}

/* ===== SINGLE PLAN ===== */
.plans-single {
  max-width: 700px;
  margin: 40px auto 0;
  border: 2px solid var(--primary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.plans-single-header {
  background: var(--primary);
  color: #fff;
  padding: 20px 32px;
  text-align: center;
}
.plan-name-badge {
  display: inline-block;
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  margin-bottom: 6px;
}
.plans-single-header p { color: rgba(255,255,255,0.85); font-size: 0.9rem; margin: 0; }
.plans-tiers { background: var(--bg); }
.tier-row {
  display: grid;
  grid-template-columns: 1fr 1fr 2fr;
  align-items: center;
  gap: 12px;
  padding: 18px 32px;
  border-bottom: 1px solid var(--border);
}
.tier-row--mid { background: #fff8f8; }
.tier-row--top { background: #fff0f0; border-bottom: none; }
.tier-usage { font-weight: 700; font-size: 1rem; }
.tier-price { font-size: 1.6rem; font-weight: 800; color: var(--primary); }
.tier-price span { font-size: 0.85rem; color: var(--text-muted); font-weight: 500; }
.tier-note { font-size: 0.82rem; color: var(--text-muted); }
.plans-single-footer {
  background: var(--bg-alt);
  padding: 24px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.plan-includes { list-style: none; font-size: 0.88rem; }
.plan-includes li { padding: 3px 0; }

/* ===== REFERRAL SECTION ===== */
.referral-section { padding: 80px 0; background: var(--bg-alt); }
.referral-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 40px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}
.referral-card {
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  text-align: center;
  background: var(--bg);
}
.referral-card--top { border-color: var(--primary); background: #fff8f8; }
.referral-points { font-size: 2.2rem; font-weight: 800; color: var(--primary); margin-bottom: 6px; }
.referral-type { font-weight: 700; font-size: 1rem; margin-bottom: 10px; }
.referral-card p { color: var(--text-muted); font-size: 0.87rem; }
.referral-conditions {
  max-width: 700px;
  margin: 40px auto 0;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
}
.referral-conditions h3 { margin-bottom: 16px; }
.referral-conditions ol { padding-left: 20px; }
.referral-conditions li { margin-bottom: 10px; font-size: 0.92rem; color: var(--text-muted); }
.referral-note {
  margin-top: 16px;
  background: #fffbeb;
  border-left: 4px solid #f59e0b;
  padding: 12px 16px;
  border-radius: 0 8px 8px 0;
  font-size: 0.87rem;
  color: var(--text);
}

@media (max-width: 640px) {
  .tier-row { grid-template-columns: 1fr; padding: 12px 16px; text-align: center; gap: 4px; }
  .tier-note { display: none; }
  .tier-usage { font-size: 0.88rem; }
  .tier-price { font-size: 1.4rem; }
  .plans-single-footer { flex-direction: column; text-align: center; padding: 16px; }
  .plans-single-footer .btn { width: 100%; justify-content: center; }
  .referral-grid { grid-template-columns: 1fr; }
}

/* ===== AUDIENCE SECTION ===== */
.audience-section {
  padding: 80px 0;
}

.audience-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 48px;
}

.audience-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: box-shadow 0.2s, transform 0.2s;
}
.audience-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.audience-emoji { font-size: 2.5rem; margin-bottom: 12px; }
.audience-card h3 { margin-bottom: 8px; font-size: 1rem; }
.audience-card p { color: var(--text-muted); font-size: 0.87rem; line-height: 1.6; margin-bottom: 14px; }

.link-arrow {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--primary);
}

/* ===== STEPS SECTION ===== */
.steps-section {
  padding: 80px 0;
  background: var(--bg-dark);
  color: #fff;
}

.steps-section h2 { color: #fff; margin-bottom: 8px; }
.steps-section .section-sub { color: rgba(255,255,255,0.65); }

.steps-list {
  list-style: none;
  margin-top: 48px;
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
  max-width: 760px;
}

.steps-list::before {
  content: '';
  position: absolute;
  left: 28px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: rgba(255,255,255,0.1);
}

.step {
  display: flex;
  gap: 24px;
  align-items: flex-start;
  padding: 0 0 36px;
  position: relative;
}

.step-number {
  width: 56px;
  height: 56px;
  background: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.1rem;
  color: #fff;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}

.step-content h3 {
  color: #fff;
  margin-bottom: 6px;
  padding-top: 14px;
}
.step-content p { color: rgba(255,255,255,0.7); font-size: 0.93rem; }
.step-content strong { color: #fff; }

.steps-cta {
  margin-top: 20px;
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.steps-section .link-arrow { color: rgba(255,255,255,0.7); }

/* ===== COMPARE SECTION ===== */
.compare-section {
  padding: 80px 0;
  background: var(--bg-alt);
}

.compare-section h2 { margin-bottom: 8px; }

.table-wrap {
  margin-top: 40px;
  overflow-x: auto;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg);
  font-size: 0.9rem;
}

.compare-table th {
  background: var(--bg-dark);
  color: rgba(255,255,255,0.9);
  padding: 14px 16px;
  text-align: left;
  font-size: 0.82rem;
  font-weight: 600;
  white-space: nowrap;
}

.compare-table td {
  padding: 13px 16px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.compare-table tr:last-child td { border-bottom: none; }

.highlight-row {
  background: #fffde7;
}
.highlight-row td { font-weight: 500; }

.compare-table tr:hover td { background: var(--bg-alt); }
.highlight-row:hover td { background: #fff9c4; }

@media (max-width: 640px) {
  .compare-table { font-size: 0.72rem; }
  .compare-table th { padding: 8px 8px; white-space: normal; font-size: 0.7rem; }
  .compare-table td { padding: 8px 8px; white-space: normal; }
  .table-wrap { margin-top: 20px; }
}

/* ===== REVIEWS SECTION ===== */
.reviews-section {
  padding: 80px 0;
}

.reviews-section h2 { margin-bottom: 48px; }

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.review-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.review-stars {
  color: #f59e0b;
  font-size: 1.1rem;
  margin-bottom: 14px;
}

.review-card blockquote {
  color: var(--text);
  font-size: 0.93rem;
  line-height: 1.7;
  margin-bottom: 16px;
  font-style: italic;
}

.review-card footer { display: flex; flex-direction: column; gap: 4px; }
.review-card cite { font-style: normal; font-weight: 600; font-size: 0.9rem; }
.review-meta { font-size: 0.82rem; color: var(--text-muted); }

/* ===== FAQ SECTION ===== */
.faq-section {
  padding: 80px 0;
  background: var(--bg-alt);
}

.faq-section h2 { margin-bottom: 40px; }

.faq-list {
  max-width: 780px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.faq-item summary {
  padding: 18px 20px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.97rem;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  font-size: 1.4rem;
  color: var(--primary);
  font-weight: 300;
  flex-shrink: 0;
}
.faq-item[open] summary::after { content: '−'; }

.faq-answer {
  padding: 0 20px 18px;
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.7;
}
.faq-answer ul { padding-left: 18px; margin-top: 8px; }
.faq-answer li { margin-bottom: 4px; }

.faq-more {
  margin-top: 24px;
  font-size: 0.95rem;
}

/* ===== FINAL CTA ===== */
.final-cta {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  text-align: center;
  color: #fff;
}

.final-cta h2 { color: #fff; margin-bottom: 12px; }
.final-cta p { color: rgba(255,255,255,0.85); margin-bottom: 32px; font-size: 1.05rem; }

.final-cta .btn-primary {
  background: #fff;
  color: var(--primary);
  border-color: #fff;
}
.final-cta .btn-primary:hover {
  background: rgba(255,255,255,0.9);
  box-shadow: 0 8px 30px rgba(0,0,0,0.2);
}

.cta-note {
  margin-top: 16px;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.65);
  margin-bottom: 0 !important;
}

/* ===== SHIMMER ===== */
.no1-badge {
  display: inline-block;
  font-weight: 800;
  background: linear-gradient(90deg, #fff 0%, #ffe066 40%, #fff 60%, #ffe066 80%, #fff 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 2.4s linear infinite;
}
@keyframes shimmer {
  0% { background-position: 200% center; }
  100% { background-position: -200% center; }
}

/* ===== FOOTER ===== */
.site-footer {
  background: var(--bg-dark);
  color: rgba(255,255,255,0.65);
  padding: 60px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand .logo { color: #fff; margin-bottom: 12px; display: inline-flex; }
.footer-brand p { font-size: 0.88rem; line-height: 1.6; }

.footer-nav h4 { color: rgba(255,255,255,0.4); margin-bottom: 14px; }
.footer-nav ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.footer-nav a { color: rgba(255,255,255,0.65); font-size: 0.88rem; transition: color 0.2s; }
.footer-nav a:hover { color: #fff; text-decoration: none; }

.footer-lang h4 { color: rgba(255,255,255,0.4); margin-bottom: 14px; }
.footer-lang ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.footer-lang a { color: rgba(255,255,255,0.65); font-size: 0.88rem; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer-bottom p { font-size: 0.82rem; }

.affiliate-disclosure {
  color: rgba(255,255,255,0.4);
  font-size: 0.8rem !important;
  max-width: 700px;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .plans-grid { grid-template-columns: 1fr; max-width: 440px; margin-left: auto; margin-right: auto; }
  .audience-grid { grid-template-columns: repeat(2, 1fr); }
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .reviews-grid { grid-template-columns: 1fr; max-width: 500px; margin: 0 auto; }
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  flex-shrink: 0;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}
.hamburger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.hamburger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 640px) {
  .nav-container { gap: 0; padding: 8px 12px; }
  .hamburger { display: flex; order: 3; flex-shrink: 0; }
  .logo { order: 1; font-size: 0.88rem; flex: 1; min-width: 0; }
  .logo-icon { font-size: 1rem; flex-shrink: 0; }
  .lang-switcher { order: 2; margin-left: auto; flex-shrink: 1; min-width: 0; }
  .lang-switcher-btn { padding: 5px 7px; font-size: 0.72rem; white-space: nowrap; }
  .btn-nav { display: none; }
  .nav-links {
    order: 4;
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    padding: 16px 20px;
    box-shadow: var(--shadow);
    border-top: 1px solid var(--border);
    gap: 16px;
    z-index: 99;
  }
  .nav-links.nav-open { display: flex; }
  .nav-cta { display: list-item !important; list-style: none; padding-top: 8px; border-top: 1px solid var(--border); }
  .nav-cta .btn-primary { display: block; text-align: center; font-size: 0.85rem; padding: 10px 16px; background: var(--primary); color: #fff; border-radius: var(--radius); font-weight: 600; text-decoration: none; }
  .nav-cta .btn-primary:hover { background: var(--primary-dark); text-decoration: none; }
  .features-grid { grid-template-columns: 1fr; }
  .audience-grid { grid-template-columns: 1fr; }
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
  .hero { padding: 50px 0 60px; }
  .hero-price .price-amount { font-size: 2.2rem; }
  .hero-cta { flex-direction: column; align-items: center; }
  .hero-checks { flex-direction: column; gap: 8px; }
  .footer-grid { grid-template-columns: 1fr; }
  .steps-section { padding: 60px 0; }
  section { padding: 60px 0 !important; }
}

/* ===== ACCESSIBILITY ===== */
:focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 3px;
  border-radius: 4px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
}

/* ===== LANGUAGE SWITCHER ===== */
.lang-switcher {
  position: relative;
}
.lang-switcher-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 6px 11px;
  font-size: 0.82rem;
  cursor: pointer;
  color: var(--text);
  white-space: nowrap;
  line-height: 1;
}
.lang-switcher-btn:hover {
  background: var(--bg-alt);
}
.lang-switcher-btn .lang-arrow {
  font-size: 0.65rem;
  color: var(--text-muted);
  transition: transform 0.2s;
}
.lang-switcher:hover .lang-arrow,
.lang-switcher:focus-within .lang-arrow {
  transform: rotate(180deg);
}
.lang-dropdown {
  display: none;
  position: absolute;
  top: 100%;
  right: 0;
  padding-top: 6px;
  background: transparent;
  min-width: 180px;
  z-index: 200;
}
.lang-dropdown::before {
  content: '';
  display: block;
  position: absolute;
  top: 6px;
  left: 0;
  right: 0;
  bottom: 0;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 4px 20px rgba(0,0,0,0.12);
  z-index: -1;
}
.lang-switcher:hover .lang-dropdown,
.lang-switcher:focus-within .lang-dropdown {
  display: block;
}
.lang-dropdown a,
.lang-dropdown span {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  font-size: 0.85rem;
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--border);
  background: #fff;
}
.lang-dropdown a:first-child,
.lang-dropdown span:first-child {
  border-radius: var(--radius) var(--radius) 0 0;
}
.lang-dropdown a:last-child,
.lang-dropdown span:last-child {
  border-bottom: none;
  border-radius: 0 0 var(--radius) var(--radius);
}
.lang-dropdown a:hover {
  background: var(--bg-alt);
}
.lang-dropdown a.lang-active {
  color: var(--primary);
  font-weight: 700;
}
.lang-dropdown span.lang-soon {
  color: var(--text-muted);
  cursor: default;
  font-size: 0.8rem;
}
.lang-flag {
  font-size: 1rem;
  line-height: 1;
}