/* Whale VPN — deep ocean cyan + mint on dark navy
   Axes: Hero B / Nav D / Cards D glass / Typo B Kanit / Buttons B pill
         Sections F all dark / Price C banner / FAQ A accordion / Footer A 4col / Anim A fade-up */

:root {
  --primary: #0E7490;
  --primary-deep: #155E75;
  --accent: #67E8F9;
  --accent-soft: #A5F3FC;
  --bg: #0C1929;
  --bg-alt: #122438;
  --bg-deep: #07111E;
  --bg-card: rgba(20, 40, 60, 0.6);
  --bg-card-hover: rgba(30, 60, 90, 0.7);
  --text: #E0F2FE;
  --text-bright: #F0F9FF;
  --text-muted: #94A3B8;
  --border: rgba(103, 232, 249, 0.15);
  --border-bright: rgba(103, 232, 249, 0.35);
  --radius: 18px;
  --radius-sm: 12px;
  --radius-pill: 50px;
  --shadow-glow: 0 0 40px rgba(103, 232, 249, 0.15);
  --shadow-deep: 0 24px 60px rgba(0, 0, 0, 0.45);
  --tr: 0.32s cubic-bezier(.2,.7,.2,1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: 'Onest', system-ui, sans-serif;
  font-size: 16.5px;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  background-image:
    radial-gradient(1200px 600px at 80% -10%, rgba(14, 116, 144, 0.35), transparent 60%),
    radial-gradient(900px 500px at -10% 30%, rgba(103, 232, 249, 0.07), transparent 70%);
  background-attachment: fixed;
  overflow-x: hidden;
  min-height: 100vh;
}

img { max-width: 100%; display: block; height: auto; }
a { color: var(--accent); text-decoration: none; transition: color var(--tr); }
a:hover { color: var(--accent-soft); }
ul { list-style: none; }

h1, h2, h3, h4 {
  font-family: 'Kanit', sans-serif;
  color: var(--text-bright);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.18;
}
h1 { font-size: clamp(2rem, 5vw, 3.6rem); font-weight: 700; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.65rem, 3.4vw, 2.5rem); margin-bottom: 0.6em; }
h3 { font-size: 1.25rem; margin-bottom: 0.5em; }

.container { width: min(1200px, 92%); margin: 0 auto; }

/* ================ HEADER (Nav D — dark sticky) ================ */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(7, 17, 30, 0.85);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border-bottom: 1px solid var(--border);
}
.nav-wrap {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 0;
}
.brand { display: flex; align-items: center; gap: 12px; font-family: 'Kanit', sans-serif; font-weight: 600; font-size: 1.18rem; color: var(--text-bright); }
.brand img { width: 38px; height: 38px; border-radius: 10px; }
.nav-links { display: flex; align-items: center; gap: 30px; }
.nav-links a { color: var(--text-muted); font-weight: 500; transition: color var(--tr); font-size: 0.96rem; }
.nav-links a:hover { color: var(--accent); }

.nav-links a.nav-cta {
  background: var(--accent);
  color: #000000;
  font-weight: 800;
  padding: 11px 24px;
  border-radius: var(--radius-pill);
  transition: background var(--tr), transform var(--tr), box-shadow var(--tr);
  box-shadow: 0 4px 18px rgba(103, 232, 249, 0.25);
}
.nav-links a.nav-cta:hover {
  color: #000000;
  background: var(--accent-soft);
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(103, 232, 249, 0.4);
}

.burger { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }
.burger span { display: block; width: 26px; height: 2px; background: var(--accent); margin: 5px 0; border-radius: 2px; transition: transform var(--tr), opacity var(--tr); }
.burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; }
.burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-nav {
  display: none;
  position: fixed; inset: 72px 0 0 0;
  background: var(--bg-deep);
  padding: 36px 24px;
  z-index: 90;
}
.mobile-nav.open { display: block; }
.mobile-nav a { display: block; padding: 18px 0; color: var(--text); font-size: 1.1rem; border-bottom: 1px solid var(--border); }

/* ================ BUTTONS (B pill) ================ */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 16px 34px;
  font-family: 'Onest', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  border: 0;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: transform var(--tr), box-shadow var(--tr), background var(--tr);
  text-align: center;
  letter-spacing: 0.01em;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-soft) 100%);
  color: #00141F;
  box-shadow: 0 8px 28px rgba(103, 232, 249, 0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 38px rgba(103, 232, 249, 0.55); color: #00141F; }
.btn-ghost {
  background: transparent;
  color: var(--accent);
  border: 1.5px solid var(--border-bright);
}
.btn-ghost:hover { background: rgba(103, 232, 249, 0.08); border-color: var(--accent); color: var(--accent-soft); transform: translateY(-2px); }
.btn-lg { padding: 18px 42px; font-size: 1.05rem; }

/* ================ HERO (B — dark, content left, visual right) ================ */
.hero {
  padding: 80px 0 100px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(800px 400px at 75% 50%, rgba(14, 116, 144, 0.25), transparent 60%),
    radial-gradient(500px 300px at 10% 80%, rgba(103, 232, 249, 0.08), transparent 70%);
  pointer-events: none;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 18px;
  background: rgba(103, 232, 249, 0.1);
  border: 1px solid var(--border-bright);
  border-radius: var(--radius-pill);
  color: var(--accent);
  font-size: 0.88rem;
  font-weight: 500;
  margin-bottom: 24px;
}
.hero-badge::before {
  content: ''; width: 8px; height: 8px; background: var(--accent); border-radius: 50%;
  box-shadow: 0 0 10px var(--accent);
  animation: pulse 2s infinite;
}
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }

.hero h1 { margin-bottom: 22px; }
.hero h1 .accent { background: linear-gradient(135deg, var(--accent) 0%, var(--accent-soft) 100%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-desc { font-size: 1.12rem; color: var(--text-muted); margin-bottom: 32px; max-width: 540px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 38px; }

.trust-row { display: flex; flex-wrap: wrap; gap: 22px; }
.trust-item { display: flex; align-items: center; gap: 8px; color: var(--text-muted); font-size: 0.92rem; }
.trust-item .dot { width: 6px; height: 6px; background: var(--accent); border-radius: 50%; }

/* Hero visual: ocean wave + whale + stats */
.hero-visual {
  position: relative;
  aspect-ratio: 1 / 1;
  max-width: 480px;
  margin-left: auto;
}
.hero-orb {
  position: absolute; inset: 0;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, var(--primary) 0%, var(--primary-deep) 50%, transparent 75%);
  filter: blur(2px);
  opacity: 0.65;
}
.hero-card {
  position: absolute;
  background: var(--bg-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-bright);
  border-radius: var(--radius);
  padding: 18px 22px;
  box-shadow: var(--shadow-deep);
}
.hero-card .num { font-family: 'Kanit', sans-serif; font-size: 1.8rem; font-weight: 700; color: var(--text-bright); }
.hero-card .lbl { font-size: 0.85rem; color: var(--text-muted); margin-top: 4px; }
.hero-card.c1 { top: 10%; left: -8%; animation: float1 6s ease-in-out infinite; }
.hero-card.c2 { top: 38%; right: -6%; animation: float2 7s ease-in-out infinite; }
.hero-card.c3 { bottom: 8%; left: 10%; animation: float3 5.5s ease-in-out infinite; }
@keyframes float1 { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
@keyframes float2 { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-14px); } }
@keyframes float3 { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }

.whale-svg { position: absolute; inset: 18% 12% 18% 12%; z-index: 1; }

/* ================ STATS BAR ================ */
.stats {
  padding: 50px 0;
  background: var(--bg-deep);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}
.stat-cell { text-align: center; }
.stat-cell .v { font-family: 'Kanit', sans-serif; font-size: 2.2rem; font-weight: 700; color: var(--accent); margin-bottom: 4px; }
.stat-cell .l { color: var(--text-muted); font-size: 0.95rem; }

/* ================ FEATURES (Cards D — glass) ================ */
section { padding: 90px 0; position: relative; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-head .eyebrow { display: inline-block; color: var(--accent); font-weight: 500; letter-spacing: 0.12em; text-transform: uppercase; font-size: 0.82rem; margin-bottom: 14px; }
.section-head p { color: var(--text-muted); font-size: 1.05rem; margin-top: 14px; }

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.feature-card {
  background: var(--bg-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: transform var(--tr), border-color var(--tr), background var(--tr);
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0; transition: opacity var(--tr);
}
.feature-card:hover { transform: translateY(-4px); border-color: var(--border-bright); background: var(--bg-card-hover); }
.feature-card:hover::before { opacity: 1; }
.feature-icon {
  width: 54px; height: 54px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, rgba(14,116,144,0.4), rgba(103,232,249,0.15));
  border-radius: 14px;
  margin-bottom: 20px;
  font-size: 1.5rem;
  color: var(--accent);
  border: 1px solid var(--border-bright);
}
.feature-card h3 { color: var(--text-bright); margin-bottom: 10px; }
.feature-card p { color: var(--text-muted); font-size: 0.96rem; }

/* ================ DOWNLOAD / PLATFORMS ================ */
.platforms-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.platform-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  display: flex; align-items: center; gap: 18px;
  text-decoration: none;
  color: var(--text);
  transition: transform var(--tr), border-color var(--tr), background var(--tr);
}
.platform-card:hover { transform: translateY(-3px); border-color: var(--border-bright); background: var(--bg-card-hover); color: var(--text-bright); }
.platform-icon {
  width: 50px; height: 50px;
  background: rgba(14, 116, 144, 0.3);
  border: 1px solid var(--border-bright);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
}
.platform-card .pname { font-family: 'Kanit', sans-serif; font-weight: 600; font-size: 1.08rem; }
.platform-card .pmeta { font-size: 0.85rem; color: var(--text-muted); margin-top: 3px; }

/* ================ WHY-WHALE TEXT BLOCK ================ */
.why-whale {
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-alt) 100%);
}
.why-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.why-text h2 { margin-bottom: 18px; }
.why-text p { color: var(--text-muted); margin-bottom: 16px; font-size: 1.02rem; }
.why-points { margin-top: 26px; }
.why-points li { display: flex; gap: 14px; margin-bottom: 18px; align-items: flex-start; }
.why-points .check {
  flex-shrink: 0;
  width: 26px; height: 26px;
  background: rgba(103, 232, 249, 0.15);
  border: 1px solid var(--border-bright);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--accent);
  font-weight: 700;
  margin-top: 2px;
}
.why-points strong { color: var(--text-bright); display: block; margin-bottom: 4px; font-family: 'Kanit', sans-serif; font-weight: 500; }
.why-points span { color: var(--text-muted); font-size: 0.96rem; }

.depth-visual {
  background: var(--bg-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  position: relative;
  overflow: hidden;
}
.depth-bar { display: flex; align-items: center; gap: 16px; padding: 16px 0; border-bottom: 1px dashed var(--border); }
.depth-bar:last-child { border-bottom: 0; }
.depth-bar .meter {
  flex: 1; height: 6px; background: rgba(255,255,255,0.05); border-radius: 3px; overflow: hidden;
}
.depth-bar .fill { height: 100%; background: linear-gradient(90deg, var(--primary), var(--accent)); border-radius: 3px; }
.depth-bar .label { font-size: 0.92rem; color: var(--text-muted); min-width: 130px; }
.depth-bar .val { font-family: 'Kanit', sans-serif; color: var(--accent); font-weight: 600; min-width: 60px; text-align: right; }

/* ================ USE CASES ================ */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}
.case-card {
  background: var(--bg-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 32px;
  display: flex; gap: 22px; align-items: flex-start;
  transition: transform var(--tr), border-color var(--tr);
}
.case-card:hover { transform: translateY(-3px); border-color: var(--border-bright); }
.case-card .num {
  flex-shrink: 0;
  font-family: 'Kanit', sans-serif;
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--accent);
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(103,232,249,0.08);
  border: 1px solid var(--border-bright);
  border-radius: 12px;
}
.case-card h3 { margin-bottom: 8px; font-size: 1.12rem; }
.case-card p { color: var(--text-muted); font-size: 0.96rem; }

/* ================ PRICE BANNER (C — horizontal) ================ */
.price-banner {
  background: linear-gradient(110deg, var(--primary-deep) 0%, var(--primary) 50%, #0F4F66 100%);
  border-radius: var(--radius);
  padding: 44px 48px;
  display: grid;
  grid-template-columns: 2fr 1fr auto;
  gap: 40px;
  align-items: center;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border-bright);
}
.price-banner::before {
  content: ''; position: absolute; right: -80px; top: -80px;
  width: 280px; height: 280px;
  background: radial-gradient(circle, rgba(103,232,249,0.25), transparent 70%);
  border-radius: 50%;
}
.price-banner h3 { font-size: 1.6rem; margin-bottom: 6px; color: #fff; position: relative; }
.price-banner p { color: rgba(224,242,254,0.85); position: relative; }
.price-tag {
  text-align: center;
  position: relative;
  border-left: 1px solid rgba(224,242,254,0.25);
  padding-left: 36px;
}
.price-tag .big { font-family: 'Kanit', sans-serif; font-size: 2.6rem; font-weight: 700; color: #fff; line-height: 1; }
.price-tag .sm { font-size: 0.9rem; color: rgba(224,242,254,0.8); margin-top: 6px; }
.price-banner .btn { position: relative; }

/* ================ CTA BANNER ================ */
.cta-banner {
  text-align: center;
  background: var(--bg-deep);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 64px 32px;
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at 50% 100%, rgba(14,116,144,0.4), transparent 60%);
  pointer-events: none;
}
.cta-banner h2 { position: relative; margin-bottom: 16px; }
.cta-banner p { color: var(--text-muted); margin-bottom: 28px; max-width: 540px; margin-left: auto; margin-right: auto; position: relative; }

/* ================ FAQ (A — accordion) ================ */
.faq-list { max-width: 880px; margin: 0 auto; }
.faq-item {
  background: var(--bg-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
  overflow: hidden;
  transition: border-color var(--tr);
}
.faq-item.open { border-color: var(--border-bright); }
.faq-q {
  width: 100%;
  text-align: left;
  background: none;
  border: 0;
  padding: 22px 28px;
  color: var(--text-bright);
  font-family: 'Kanit', sans-serif;
  font-weight: 500;
  font-size: 1.05rem;
  cursor: pointer;
  display: flex; justify-content: space-between; align-items: center; gap: 18px;
}
.faq-q .arrow {
  width: 26px; height: 26px;
  border: 1px solid var(--border-bright);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
  transition: transform var(--tr), background var(--tr);
}
.faq-item.open .faq-q .arrow { transform: rotate(180deg); background: rgba(103,232,249,0.15); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(.2,.7,.2,1);
}
.faq-a-inner { padding: 0 28px 24px; color: var(--text-muted); font-size: 0.98rem; }

/* ================ FOOTER (A — 4 cols dark) ================ */
.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid var(--border);
  padding: 70px 0 30px;
  margin-top: 40px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 50px;
  margin-bottom: 40px;
}
.footer-col h4 { font-family: 'Kanit', sans-serif; color: var(--text-bright); font-size: 1rem; margin-bottom: 20px; font-weight: 500; }
.footer-col a { display: block; color: var(--text-muted); padding: 7px 0; font-size: 0.94rem; }
.footer-col a:hover { color: var(--accent); }
.footer-brand p { color: var(--text-muted); font-size: 0.94rem; margin: 14px 0 0; max-width: 320px; }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 14px;
  color: var(--text-muted);
  font-size: 0.88rem;
}

/* ================ INSTRUKTSIYA ================ */
.instr-hero {
  padding: 70px 0 50px;
  text-align: center;
}
.instr-hero h1 { margin-bottom: 18px; }
.instr-hero p { color: var(--text-muted); max-width: 620px; margin: 0 auto; font-size: 1.06rem; }

.steps {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 26px;
  max-width: 980px;
  margin: 0 auto;
}
.step {
  background: var(--bg-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 32px;
  position: relative;
}
.step .step-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 50px; height: 50px;
  font-family: 'Kanit', sans-serif;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent);
  background: rgba(103,232,249,0.1);
  border: 1px solid var(--border-bright);
  border-radius: 50%;
  margin-bottom: 22px;
}
.step h3 { margin-bottom: 12px; font-size: 1.25rem; }
.step p { color: var(--text-muted); margin-bottom: 14px; font-size: 0.98rem; }
.step .btn { margin-top: 8px; }

.after-pay {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 50px 44px;
}
.after-pay h2 { margin-bottom: 14px; }
.after-pay > p { color: var(--text-muted); margin-bottom: 32px; max-width: 720px; }

/* ================ ANIMATIONS (A — fade-up) ================ */
.fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s cubic-bezier(.2,.7,.2,1), transform 0.8s cubic-bezier(.2,.7,.2,1);
}
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* ================ RESPONSIVE ================ */
@media (max-width: 980px) {
  .nav-links { display: none; }
  .burger { display: block; }
  .hero-grid, .why-grid { grid-template-columns: 1fr; gap: 50px; }
  .hero-visual { max-width: 380px; margin: 0 auto; }
  .features-grid, .platforms-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 22px; }
  .cases-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .price-banner { grid-template-columns: 1fr; gap: 24px; text-align: center; }
  .price-tag { border-left: 0; padding-left: 0; border-top: 1px solid rgba(224,242,254,0.2); padding-top: 24px; }
  .steps { grid-template-columns: 1fr; }
  section { padding: 70px 0; }
  .hero { padding: 50px 0 70px; }
}
@media (max-width: 560px) {
  .features-grid, .platforms-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .btn { justify-content: center; }
  .price-banner { padding: 32px 24px; }
  .after-pay { padding: 36px 24px; }
}