@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&display=swap');

:root {
  --bg-dark: #050505;
  --bg-card: #111111;
  --bg-card-hover: #1a1a1a;
  --text-main: #ffffff;
  --text-muted: #888888;
  --border-color: #222222;
  --accent-gray: #333333;
}

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

body {
  font-family: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes pulseGlow {
  0% { box-shadow: 0 0 20px rgba(255, 255, 255, 0.05); }
  50% { box-shadow: 0 0 40px rgba(255, 255, 255, 0.1); }
  100% { box-shadow: 0 0 20px rgba(255, 255, 255, 0.05); }
}

.animate-fade {
  animation: fadeIn 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  opacity: 0;
}

.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }
.delay-3 { animation-delay: 0.6s; }

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  padding: 20px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 1000;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: rgba(5, 5, 5, 0.7);
  border-bottom: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.logo {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -1px;
  color: var(--text-main);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: linear-gradient(135deg, #fff 0%, #888 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #000;
  font-size: 18px;
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  transition: all 0.3s ease;
  position: relative;
}

.nav-links a:hover, .nav-links a.active {
  color: var(--text-main);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--text-main);
  transition: width 0.3s ease;
}

.nav-links a:hover::after, .nav-links a.active::after {
  width: 100%;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 120px 20px;
  position: relative;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(255,255,255,0.03) 0%, rgba(0,0,0,0) 70%);
  z-index: -1;
  border-radius: 50%;
}

.hero h1 {
  font-size: 82px;
  font-weight: 800;
  letter-spacing: -3px;
  line-height: 1.1;
  margin-bottom: 24px;
  background: linear-gradient(180deg, #FFFFFF 0%, #666666 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  max-width: 900px;
}

.hero p {
  font-size: 22px;
  color: var(--text-muted);
  max-width: 600px;
  margin-bottom: 48px;
  font-weight: 300;
}

.btn-primary {
  display: inline-block;
  padding: 16px 40px;
  background: var(--text-main);
  color: var(--bg-dark);
  text-decoration: none;
  font-weight: 600;
  font-size: 16px;
  border-radius: 30px;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 0 20px rgba(255, 255, 255, 0.1);
}

.btn-primary:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 10px 40px rgba(255, 255, 255, 0.2);
  background: #e0e0e0;
}

.btn-secondary {
  display: inline-block;
  padding: 15px 38px;
  background: transparent;
  color: var(--text-main);
  text-decoration: none;
  font-weight: 600;
  font-size: 16px;
  border-radius: 30px;
  border: 1px solid var(--border-color);
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  margin-left: 16px;
}

.btn-secondary:hover {
  background: var(--bg-card);
  border-color: var(--accent-gray);
  transform: translateY(-4px);
}

/* Feature Cards */
.features {
  padding: 100px 40px;
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 40px;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  opacity: 0;
  transition: opacity 0.4s;
}

.card:hover {
  transform: translateY(-10px);
  background: var(--bg-card-hover);
  border-color: var(--accent-gray);
  box-shadow: 0 20px 40px rgba(0,0,0,0.5);
}

.card:hover::before {
  opacity: 1;
}

.card-icon {
  width: 60px;
  height: 60px;
  background: rgba(255,255,255,0.05);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  font-size: 24px;
  color: var(--text-main);
  border: 1px solid var(--border-color);
}

.card h3 {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.card p {
  color: var(--text-muted);
  font-size: 16px;
}

/* Content Pages (Privacy, Terms, Delete) */
.page-header {
  padding: 160px 20px 60px;
  text-align: center;
  border-bottom: 1px solid var(--border-color);
  background: radial-gradient(ellipse at top, rgba(255,255,255,0.03) 0%, transparent 70%);
}

.page-header h1 {
  font-size: 48px;
  font-weight: 800;
  letter-spacing: -1.5px;
  margin-bottom: 16px;
}

.page-header .date {
  color: var(--text-muted);
  font-size: 15px;
}

.content-wrapper {
  max-width: 800px;
  margin: 0 auto;
  padding: 60px 20px;
}

.content-wrapper h2 {
  font-size: 28px;
  font-weight: 700;
  margin: 48px 0 24px;
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
}

.content-wrapper h2::before {
  content: "";
  display: inline-block;
  width: 12px;
  height: 12px;
  background: var(--text-main);
  border-radius: 50%;
  margin-right: 16px;
  box-shadow: 0 0 10px rgba(255,255,255,0.5);
}

.content-wrapper p {
  font-size: 17px;
  color: #aaaaaa;
  margin-bottom: 24px;
}

.content-wrapper ul {
  list-style: none;
  margin-bottom: 32px;
}

.content-wrapper li {
  font-size: 17px;
  color: #aaaaaa;
  margin-bottom: 16px;
  padding-left: 30px;
  position: relative;
}

.content-wrapper li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--text-muted);
}

.content-wrapper strong {
  color: var(--text-main);
  font-weight: 600;
}

.highlight-box {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--text-main);
  padding: 24px 32px;
  border-radius: 0 12px 12px 0;
  margin: 40px 0;
}

.highlight-box p {
  margin: 0;
  color: var(--text-main);
}

/* Footer */
footer {
  border-top: 1px solid var(--border-color);
  padding: 40px 20px;
  text-align: center;
  color: var(--text-muted);
  font-size: 14px;
  margin-top: auto;
}

footer a {
  color: var(--text-main);
  text-decoration: none;
}

@media (max-width: 768px) {
  .hero h1 { font-size: 52px; }
  .nav-links { display: none; }
  .btn-secondary { margin-left: 0; margin-top: 16px; display: block; }
}