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

:root {
  --bg: #0A0E14;
  --bg-card: rgba(255, 255, 255, 0.05);
  --accent: #00D4AA;
  --accent-glow: rgba(0, 212, 170, 0.15);
  --secondary: #6C63FF;
  --secondary-glow: rgba(108, 99, 255, 0.15);
  --text: #EAEAEA;
  --text-muted: #8A8F98;
  --border: rgba(255, 255, 255, 0.08);
  --radius: 16px;
  --radius-sm: 10px;
  --nav-height: 72px;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: #33e0be;
}

img {
  max-width: 100%;
  display: block;
}

/* ===== Navigation ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(20px, 5vw, 60px);
  background: rgba(10, 14, 20, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s;
}

.nav-logo {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #fff;
}

.nav-logo span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: #fff;
}

.nav-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-burger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

/* ===== Layout ===== */
.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 clamp(20px, 5vw, 60px);
}

section {
  padding: 100px 0;
}

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 20px;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 560px;
  line-height: 1.7;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: var(--nav-height);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 60% 50% at 50% 0%, rgba(0, 212, 170, 0.08) 0%, transparent 70%),
    radial-gradient(ellipse 50% 40% at 30% 60%, rgba(108, 99, 255, 0.06) 0%, transparent 60%);
  animation: heroPulse 8s ease-in-out infinite alternate;
}

@keyframes heroPulse {
  0% {
    opacity: 0.7;
    transform: scale(1);
  }
  100% {
    opacity: 1;
    transform: scale(1.05);
  }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 680px;
  padding: 0 20px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 6px 18px;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 32px;
  backdrop-filter: blur(10px);
}

.hero-badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
}

.hero h1 {
  font-size: clamp(3rem, 8vw, 5rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.05;
  margin-bottom: 20px;
}

.hero h1 .accent {
  background: linear-gradient(135deg, var(--accent), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-tagline {
  font-size: clamp(1.1rem, 2.5vw, 1.35rem);
  font-weight: 500;
  color: #ccc;
  margin-bottom: 12px;
}

.hero-sub {
  font-size: 1rem;
  color: var(--text-muted);
  margin-bottom: 40px;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: 12px;
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: #fff;
  color: #000;
  box-shadow: 0 4px 24px rgba(255, 255, 255, 0.1);
}

.btn-primary:hover {
  background: #f0f0f0;
  color: #000;
  box-shadow: 0 6px 32px rgba(255, 255, 255, 0.15);
}

.btn-primary svg {
  width: 20px;
  height: 20px;
}

.btn-secondary {
  background: var(--bg-card);
  color: #fff;
  border: 1px solid var(--border);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

/* ===== Features ===== */
.features {
  background: linear-gradient(180deg, transparent, rgba(0, 212, 170, 0.02), transparent);
}

.features-header {
  text-align: center;
  margin-bottom: 60px;
}

.features-header .section-subtitle {
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 32px;
  backdrop-filter: blur(10px);
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 212, 170, 0.2);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.3rem;
}

.feature-icon.icon-xray {
  background: var(--accent-glow);
  color: var(--accent);
}

.feature-icon.icon-balance {
  background: var(--secondary-glow);
  color: var(--secondary);
}

.feature-icon.icon-speed {
  background: rgba(255, 184, 0, 0.12);
  color: #FFB800;
}

.feature-icon.icon-dns {
  background: rgba(255, 92, 92, 0.12);
  color: #FF5C5C;
}

.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.feature-card p {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ===== How It Works ===== */
.how-it-works {
  text-align: center;
}

.how-header {
  margin-bottom: 60px;
}

.how-header .section-subtitle {
  margin: 0 auto;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  position: relative;
}

.steps::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 20%;
  right: 20%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), var(--border), transparent);
}

.step {
  position: relative;
}

.step-number {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0 auto 24px;
  position: relative;
  z-index: 1;
}

.step:nth-child(1) .step-number {
  background: var(--accent-glow);
  color: var(--accent);
  border: 1px solid rgba(0, 212, 170, 0.2);
}

.step:nth-child(2) .step-number {
  background: var(--secondary-glow);
  color: var(--secondary);
  border: 1px solid rgba(108, 99, 255, 0.2);
}

.step:nth-child(3) .step-number {
  background: rgba(255, 184, 0, 0.12);
  color: #FFB800;
  border: 1px solid rgba(255, 184, 0, 0.2);
}

.step h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.step p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
  max-width: 260px;
  margin: 0 auto;
}

/* ===== Disclaimer ===== */
.disclaimer {
  padding: 60px 0;
}

.disclaimer-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 40px;
  text-align: center;
  backdrop-filter: blur(10px);
}

.disclaimer-box h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.disclaimer-box p {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 640px;
  margin: 0 auto;
}

/* ===== Footer ===== */
.footer {
  border-top: 1px solid var(--border);
  padding: 48px 0;
}

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

.footer-brand {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
}

.footer-brand span {
  color: var(--accent);
}

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

.footer-links a {
  color: var(--text-muted);
  font-size: 0.85rem;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: #fff;
}

.footer-copy {
  width: 100%;
  text-align: center;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ===== Legal Pages ===== */
.legal-page {
  padding-top: calc(var(--nav-height) + 60px);
  padding-bottom: 80px;
  min-height: 100vh;
}

.legal-page .container {
  max-width: 760px;
}

.legal-page h1 {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}

.legal-page .last-updated {
  color: var(--text-muted);
  font-size: 0.88rem;
  margin-bottom: 48px;
}

.legal-page h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-top: 40px;
  margin-bottom: 12px;
  color: #fff;
}

.legal-page p,
.legal-page li {
  font-size: 0.94rem;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 12px;
}

.legal-page ul {
  padding-left: 24px;
  margin-bottom: 16px;
}

.legal-page li {
  margin-bottom: 6px;
}

.legal-page a {
  color: var(--accent);
}

/* ===== Animations ===== */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }
.fade-in-delay-4 { transition-delay: 0.4s; }

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: rgba(10, 14, 20, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--border);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s, opacity 0.3s;
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .nav-burger {
    display: flex;
  }

  .nav-burger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .nav-burger.active span:nth-child(2) {
    opacity: 0;
  }

  .nav-burger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .steps {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .steps::before {
    display: none;
  }

  .hero h1 {
    font-size: clamp(2.4rem, 10vw, 3.5rem);
  }

  .hero-buttons {
    flex-direction: column;
  }

  .hero-buttons .btn {
    width: 100%;
    justify-content: center;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }

  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
  }

  .disclaimer-box {
    padding: 24px 20px;
  }

  section {
    padding: 70px 0;
  }
}

@media (max-width: 480px) {
  .feature-card {
    padding: 28px 22px;
  }
}