/* ==========================================================================
   cocoduckvpn - Quantum Privacy & Stealth High-Speed Global Network
   Obsidian Aurora & Bento-Grid Swiss Luxury Dark Architecture
   Pure Native CSS - Ultra Fast, Responsive, Zero External Dependencies
   ========================================================================== */

:root {
  --bg-deep: #06070a;
  --bg-card: rgba(13, 17, 27, 0.65);
  --bg-card-hover: rgba(20, 27, 45, 0.85);
  --bg-card-solid: #0d111b;
  --border-subtle: rgba(255, 255, 255, 0.07);
  --border-hover: rgba(0, 245, 160, 0.4);
  --border-focus: #00f5a0;
  
  --mint: #00f5a0;
  --emerald: #10b981;
  --emerald-dark: #059669;
  --ice-blue: #38bdf8;
  --ice-blue-dark: #0284c7;
  --amber: #f59e0b;
  
  --gradient-aurora: linear-gradient(135deg, #00f5a0 0%, #38bdf8 50%, #818cf8 100%);
  --gradient-btn: linear-gradient(135deg, #00f5a0 0%, #10b981 100%);
  --gradient-glass: linear-gradient(180deg, rgba(255, 255, 255, 0.06) 0%, rgba(255, 255, 255, 0.01) 100%);
  --gradient-pill: linear-gradient(90deg, rgba(0, 245, 160, 0.15) 0%, rgba(56, 189, 248, 0.15) 100%);
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  
  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  --font-mono: "SF Mono", "Fira Code", Menlo, Consolas, monospace;
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 32px;
  --radius-full: 9999px;
  
  --shadow-glow: 0 0 35px rgba(0, 245, 160, 0.18);
  --shadow-card: 0 16px 40px -10px rgba(0, 0, 0, 0.6);
  --inner-glow: inset 0 1px 0 rgba(255, 255, 255, 0.12);
  --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-sans);
  background-color: var(--bg-deep);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body {
  overflow-x: hidden;
  background: 
    radial-gradient(circle at 50% 0%, rgba(0, 245, 160, 0.08) 0%, transparent 55%),
    radial-gradient(circle at 85% 30%, rgba(56, 189, 248, 0.06) 0%, transparent 45%),
    radial-gradient(circle at 15% 70%, rgba(16, 185, 129, 0.05) 0%, transparent 50%),
    var(--bg-deep);
  min-height: 100vh;
}

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

/* Subtle Grid Background Pattern */
.bg-grid {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
  z-index: 0;
}

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* ==========================================================================
   Navigation Bar (Floating Frost Glass Pill)
   ========================================================================== */
.navbar-wrapper {
  position: fixed;
  top: 18px;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  justify-content: center;
  padding: 0 16px;
}

.navbar {
  width: 100%;
  max-width: 1200px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: rgba(10, 14, 23, 0.82);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), var(--inner-glow);
  padding: 10px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: var(--transition);
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.brand-icon {
  width: 36px;
  height: 36px;
  filter: drop-shadow(0 0 12px rgba(0, 245, 160, 0.4));
  transition: transform 0.3s ease;
}

.brand-logo:hover .brand-icon {
  transform: rotate(-6deg) scale(1.08);
}

.brand-name {
  color: #fff;
  display: flex;
  align-items: center;
  gap: 6px;
}

.brand-name span {
  color: var(--mint);
}

.brand-badge {
  font-size: 0.68rem;
  padding: 2px 7px;
  background: var(--gradient-pill);
  border: 1px solid rgba(0, 245, 160, 0.3);
  border-radius: var(--radius-full);
  color: var(--mint);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
}

.nav-links a {
  color: var(--text-muted);
  font-size: 0.92rem;
  font-weight: 500;
  transition: var(--transition);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
}

.nav-links a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.05);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-ghost {
  padding: 8px 18px;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: var(--transition);
}

.btn-ghost:hover {
  color: #fff;
}

.btn-primary {
  padding: 9px 22px;
  background: var(--gradient-btn);
  color: #04241b;
  font-size: 0.9rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  box-shadow: 0 4px 18px rgba(0, 245, 160, 0.35);
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  border: none;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 26px rgba(0, 245, 160, 0.55);
}

/* ==========================================================================
   Hero Section & Quantum Shield Header
   ========================================================================== */
.hero-section {
  padding: 160px 0 80px;
  text-align: center;
  position: relative;
}

.hero-pill-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 16px;
  background: var(--gradient-pill);
  border: 1px solid rgba(0, 245, 160, 0.3);
  border-radius: var(--radius-full);
  color: var(--mint);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 28px;
  box-shadow: 0 4px 20px rgba(0, 245, 160, 0.12);
}

.hero-pill-dot {
  width: 8px;
  height: 8px;
  background: var(--mint);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--mint);
  animation: pulse-dot 2s infinite ease-in-out;
}

@keyframes pulse-dot {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.4); opacity: 0.6; }
}

.hero-title {
  font-size: clamp(2.4rem, 5.2vw, 4.4rem);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
  max-width: 980px;
  margin-left: auto;
  margin-right: auto;
}

.hero-title .text-gradient {
  background: var(--gradient-aurora);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
  color: var(--text-muted);
  max-width: 760px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 50px;
}

.btn-hero-main {
  padding: 16px 36px;
  font-size: 1.05rem;
  font-weight: 800;
  background: var(--gradient-btn);
  color: #03231a;
  border-radius: var(--radius-full);
  box-shadow: 0 10px 30px rgba(0, 245, 160, 0.4);
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.btn-hero-main:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 14px 40px rgba(0, 245, 160, 0.6);
}

.btn-hero-secondary {
  padding: 16px 32px;
  font-size: 1.05rem;
  font-weight: 700;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: #fff;
  border-radius: var(--radius-full);
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.btn-hero-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

/* Hero Security Badges Bar */
.hero-badges-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
  flex-wrap: wrap;
  color: var(--text-dim);
  font-size: 0.85rem;
  font-weight: 600;
}

.badge-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.badge-item svg {
  color: var(--mint);
  width: 16px;
  height: 16px;
}

/* ==========================================================================
   Bento-Grid Feature Matrix Section (Swiss High-End Layout)
   ========================================================================== */
.section-padding {
  padding: 90px 0;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 54px;
}

.section-tag {
  color: var(--mint);
  font-size: 0.85rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
  display: block;
}

.section-title {
  font-size: clamp(1.8rem, 3.4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-subtitle {
  color: var(--text-muted);
  font-size: 1.05rem;
}

.bento-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 24px;
}

.bento-card {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 34px;
  box-shadow: var(--shadow-card), var(--inner-glow);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.bento-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-card), 0 0 30px rgba(0, 245, 160, 0.15);
}

.bento-span-8 {
  grid-column: span 8;
}

.bento-span-4 {
  grid-column: span 4;
}

.bento-span-6 {
  grid-column: span 6;
}

.bento-span-12 {
  grid-column: span 12;
}

.card-icon-box {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--gradient-pill);
  border: 1px solid rgba(0, 245, 160, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
  color: var(--mint);
}

.card-title {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 12px;
  color: #fff;
}

.card-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* Real-time Server Ping Widget Inside Bento */
.server-ping-matrix {
  margin-top: 24px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
}

.ping-node-item {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.ping-node-info {
  display: flex;
  align-items: center;
  gap: 8px;
}

.node-flag {
  font-size: 1.1rem;
}

.node-name {
  font-size: 0.88rem;
  font-weight: 600;
  color: #fff;
}

.ping-val {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--mint);
  font-weight: 700;
  background: rgba(0, 245, 160, 0.1);
  padding: 2px 6px;
  border-radius: 4px;
}

/* Speed Gauge Bento Element */
.speed-gauge-box {
  margin-top: 24px;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(0, 245, 160, 0.2);
  border-radius: var(--radius-md);
  padding: 20px;
}

.speed-metric-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 10px;
}

.speed-number {
  font-size: 2.2rem;
  font-weight: 900;
  font-family: var(--font-mono);
  color: var(--mint);
  letter-spacing: -0.03em;
}

.speed-unit {
  font-size: 1rem;
  color: var(--text-muted);
}

.speed-bar-track {
  height: 8px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.speed-bar-fill {
  height: 100%;
  width: 95%;
  background: var(--gradient-aurora);
  border-radius: var(--radius-full);
  box-shadow: 0 0 12px var(--mint);
}

/* ==========================================================================
   Streaming & AI Unlock Matrix
   ========================================================================== */
.unlock-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.unlock-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  transition: var(--transition);
}

.unlock-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
}

.unlock-icon-circle {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.3rem;
}

.unlock-info h4 {
  font-size: 1.05rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;
}

.unlock-info p {
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.5;
}

/* ==========================================================================
   Pricing Section (Matte Obsidian Tier Cards)
   ========================================================================== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
  align-items: stretch;
}

.price-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 38px 30px;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  position: relative;
}

.price-card.featured {
  background: rgba(16, 24, 39, 0.85);
  border-color: rgba(0, 245, 160, 0.5);
  box-shadow: 0 0 35px rgba(0, 245, 160, 0.2), var(--inner-glow);
  transform: scale(1.03);
}

.badge-featured {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-btn);
  color: #04241b;
  font-size: 0.78rem;
  font-weight: 800;
  padding: 5px 16px;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  box-shadow: 0 4px 15px rgba(0, 245, 160, 0.4);
}

.price-header {
  margin-bottom: 24px;
}

.plan-name {
  font-size: 1.25rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 8px;
}

.plan-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
}

.price-figure {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 28px;
}

.price-currency {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--mint);
}

.price-amount {
  font-size: 3rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  color: #fff;
  font-family: var(--font-mono);
}

.price-period {
  font-size: 0.92rem;
  color: var(--text-dim);
}

.feature-list {
  list-style: none;
  margin-bottom: 32px;
  flex-grow: 1;
}

.feature-list li {
  font-size: 0.92rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.feature-list li svg {
  color: var(--mint);
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.btn-plan {
  width: 100%;
  padding: 14px;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.98rem;
  text-align: center;
  transition: var(--transition);
  display: inline-block;
  cursor: pointer;
  border: 1px solid var(--border-subtle);
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
}

.btn-plan:hover {
  background: rgba(255, 255, 255, 0.12);
}

.btn-plan.btn-featured {
  background: var(--gradient-btn);
  color: #03231a;
  border: none;
  box-shadow: 0 6px 20px rgba(0, 245, 160, 0.35);
}

.btn-plan.btn-featured:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(0, 245, 160, 0.55);
}

/* ==========================================================================
   Multi-Platform Clients Section
   ========================================================================== */
.client-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.client-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 26px;
  text-align: center;
  transition: var(--transition);
}

.client-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
}

.client-icon {
  font-size: 2.4rem;
  margin-bottom: 14px;
  display: inline-block;
}

.client-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;
}

.client-support {
  font-size: 0.82rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
  margin-bottom: 16px;
}

.btn-client-link {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--mint);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* ==========================================================================
   FAQ Accordion Section (Native HTML Details)
   ========================================================================== */
.faq-container {
  max-width: 840px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item[open] {
  border-color: rgba(0, 245, 160, 0.3);
  background: rgba(15, 23, 42, 0.8);
}

.faq-summary {
  padding: 20px 24px;
  font-size: 1.05rem;
  font-weight: 700;
  color: #fff;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
}

.faq-summary::-webkit-details-marker {
  display: none;
}

.faq-summary::after {
  content: "+";
  font-size: 1.4rem;
  color: var(--mint);
  transition: transform 0.25s ease;
}

.faq-item[open] .faq-summary::after {
  content: "−";
}

.faq-content {
  padding: 0 24px 22px;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ==========================================================================
   Bottom Quantum Conversion CTA
   ========================================================================== */
.bottom-cta-banner {
  background: 
    radial-gradient(circle at 50% 50%, rgba(0, 245, 160, 0.15) 0%, transparent 70%),
    rgba(13, 17, 27, 0.85);
  border: 1px solid rgba(0, 245, 160, 0.3);
  border-radius: var(--radius-xl);
  padding: 70px 40px;
  text-align: center;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6), 0 0 40px rgba(0, 245, 160, 0.15);
  margin-bottom: 80px;
}

.bottom-cta-title {
  font-size: clamp(2rem, 3.8vw, 3rem);
  font-weight: 900;
  margin-bottom: 18px;
}

.bottom-cta-desc {
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 680px;
  margin: 0 auto 36px;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  border-top: 1px solid var(--border-subtle);
  padding: 50px 0 40px;
  background: #040507;
  color: var(--text-dim);
  font-size: 0.9rem;
}

.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: 30px;
}

.footer-links {
  display: flex;
  gap: 24px;
  list-style: none;
}

.footer-links a {
  color: var(--text-muted);
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--mint);
}

.footer-bottom {
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  padding-top: 24px;
  font-size: 0.82rem;
}

/* Floating Bottom Sticky Bar for Mobile */
.mobile-sticky-cta {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(6, 7, 10, 0.94);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid rgba(0, 245, 160, 0.3);
  padding: 12px 20px;
  z-index: 999;
  justify-content: space-between;
  align-items: center;
}

@media (max-width: 900px) {
  .nav-links { display: none; }
  .bento-span-8, .bento-span-4, .bento-span-6 {
    grid-column: span 12;
  }
  .mobile-sticky-cta {
    display: flex;
  }
}