/* ===== AdWhisperer – Global Styles ===== */

:root {
  --bg-primary: #080810;
  --bg-secondary: #0c0c1a;
  --bg-card: #111128;
  --bg-card-hover: #1a1a3a;
  --text-primary: #e8e8f0;
  --text-secondary: #9090a8;
  --text-muted: #606078;
  --indigo: #6366f1;
  --purple: #a855f7;
  --amber: #f59e0b;
  --green: #10b981;
  --pink: #ec4899;
  --gradient: linear-gradient(135deg, #6366f1, #a855f7, #f59e0b);
  --gradient-text: linear-gradient(135deg, #818cf8, #a855f7, #fbbf24);
  --radius: 12px;
  --radius-lg: 20px;
  --max-width: 1200px;
  --header-h: 72px;
}

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

html { scroll-behavior: smooth; }

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

a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; }
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

/* ===== Gradient Text ===== */
.gradient-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: inherit; font-weight: 600; font-size: 15px;
  padding: 12px 28px; border-radius: var(--radius); border: none;
  cursor: pointer; transition: all 0.3s ease; white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, #6366f1, #a855f7);
  color: #fff; box-shadow: 0 4px 20px rgba(99,102,241,0.35);
}
.btn-primary:hover {
  transform: translateY(-2px); box-shadow: 0 8px 30px rgba(99,102,241,0.5);
}
.btn-outline {
  background: transparent; color: var(--text-primary);
  border: 1.5px solid rgba(255,255,255,0.15);
}
.btn-outline:hover { border-color: var(--indigo); color: var(--indigo); }
.btn-large { padding: 16px 36px; font-size: 16px; }
.btn-small { padding: 10px 20px; font-size: 14px; }

/* ===== Header ===== */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(8,8,16,0.85); backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  height: var(--header-h);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); }
.logo { display: flex; align-items: center; gap: 10px; }
.logo-icon { flex-shrink: 0; }
.logo-text { font-size: 20px; font-weight: 700; }
.nav-links { display: flex; align-items: center; gap: 24px; }
.nav-link { color: var(--text-secondary); font-size: 14px; font-weight: 500; transition: color 0.2s; }
.nav-link:hover { color: var(--text-primary); }
.lang-switch {
  padding: 4px 12px; border: 1px solid rgba(255,255,255,0.12);
  border-radius: 6px; font-size: 13px; font-weight: 600;
}
.lang-switch:hover { border-color: var(--indigo); color: var(--indigo); }

/* ===== Mobile Menu ===== */
.menu-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
.menu-toggle span { display: block; width: 24px; height: 2px; background: var(--text-primary); border-radius: 2px; transition: all 0.3s; }

/* ===== Hero ===== */
.hero {
  position: relative; min-height: 100vh; display: flex; align-items: center;
  padding: 120px 0 80px; overflow: hidden;
}
.hero-glow {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%);
  width: 900px; height: 900px; border-radius: 50%;
  background: radial-gradient(circle, rgba(99,102,241,0.12) 0%, rgba(168,85,247,0.08) 30%, transparent 60%);
  pointer-events: none; animation: glow-pulse 6s ease-in-out infinite;
}
@keyframes glow-pulse {
  0%, 100% { opacity: 0.6; transform: translate(-50%,-50%) scale(1); }
  50% { opacity: 1; transform: translate(-50%,-50%) scale(1.05); }
}
.hero-content { position: relative; z-index: 1; text-align: center; max-width: 800px; margin: 0 auto; }
.hero-badge {
  display: inline-block; padding: 6px 16px; border-radius: 100px;
  background: linear-gradient(135deg, rgba(99,102,241,0.2), rgba(168,85,247,0.2));
  border: 1px solid rgba(99,102,241,0.3); font-size: 13px; font-weight: 600;
  color: var(--indigo); margin-bottom: 24px; letter-spacing: 0.5px;
}
.hero-title {
  font-size: clamp(40px, 7vw, 72px); font-weight: 800; line-height: 1.1;
  margin-bottom: 24px; letter-spacing: -1.5px;
}
.hero-subtitle {
  font-size: clamp(16px, 2vw, 20px); color: var(--text-secondary);
  max-width: 640px; margin: 0 auto 40px; line-height: 1.7;
}
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 60px; }
.hero-stats { display: flex; align-items: center; justify-content: center; gap: 32px; }
.stat { display: flex; flex-direction: column; align-items: center; gap: 4px; }
.stat-number { font-size: 24px; font-weight: 700; }
.stat-label { font-size: 13px; color: var(--text-muted); font-weight: 500; }
.stat-divider { width: 1px; height: 40px; background: rgba(255,255,255,0.08); }

/* ===== Sections ===== */
.section {
  padding: 100px 0; position: relative;
}
.section-dark { background: var(--bg-secondary); }
.section-title {
  font-size: clamp(32px, 4vw, 48px); font-weight: 800; text-align: center;
  margin-bottom: 16px; letter-spacing: -1px;
}
.section-subtitle {
  font-size: 18px; color: var(--text-secondary); text-align: center;
  max-width: 640px; margin: 0 auto 60px; line-height: 1.7;
}

/* ===== Steps ===== */
.steps {
  display: flex; align-items: flex-start; justify-content: center; gap: 0;
  flex-wrap: wrap; margin-top: 60px;
}
.step {
  flex: 1; min-width: 240px; max-width: 300px;
  text-align: center; padding: 32px 24px;
}
.step-number {
  width: 48px; height: 48px; border-radius: 50%;
  background: linear-gradient(135deg, rgba(99,102,241,0.2), rgba(168,85,247,0.2));
  border: 1px solid rgba(99,102,241,0.3);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; font-weight: 700; margin: 0 auto 20px;
}
.step-title { font-size: 18px; font-weight: 700; margin-bottom: 12px; }
.step-desc { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }
.step-arrow { display: flex; align-items: center; padding-top: 48px; flex-shrink: 0; }

@media (max-width: 900px) {
  .step-arrow { display: none; }
  .steps { flex-direction: column; align-items: center; gap: 32px; }
  .step { max-width: 400px; }
}

/* ===== Features ===== */
.features-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px; margin-top: 60px;
}
.feature-card {
  background: var(--bg-card); border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-lg); padding: 32px;
  transition: all 0.3s ease; cursor: default;
}
.feature-card:hover {
  background: var(--bg-card-hover); transform: translateY(-4px);
  border-color: rgba(99,102,241,0.2);
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}
.feature-icon { margin-bottom: 20px; }
.feature-title { font-size: 18px; font-weight: 700; margin-bottom: 12px; }
.feature-desc { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }

/* ===== Use Cases ===== */
.usecases {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px; margin-top: 60px;
}
.usecase {
  background: var(--bg-card); border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-lg); padding: 36px; text-align: center;
  transition: all 0.3s ease;
}
.usecase:hover { transform: translateY(-4px); border-color: rgba(99,102,241,0.2); }
.usecase-badge {
  display: inline-block; padding: 4px 14px; border-radius: 100px;
  background: linear-gradient(135deg, rgba(99,102,241,0.15), rgba(168,85,247,0.15));
  color: var(--indigo); font-size: 12px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 1px; margin-bottom: 16px;
}
.usecase-text { font-size: 16px; color: var(--text-secondary); line-height: 1.7; }

/* ===== Waitlist ===== */
.waitlist-card {
  max-width: 580px; margin: 0 auto; text-align: center;
}
.waitlist-title {
  font-size: clamp(28px, 3.5vw, 40px); font-weight: 800; margin-bottom: 16px;
}
.waitlist-subtitle {
  font-size: 17px; color: var(--text-secondary); margin-bottom: 40px; line-height: 1.7;
}
.waitlist-form { }
.input-group {
  display: flex; gap: 12px; max-width: 500px; margin: 0 auto;
}
.input-group input {
  flex: 1; padding: 16px 20px; border-radius: var(--radius);
  border: 1.5px solid rgba(255,255,255,0.1); background: var(--bg-card);
  color: var(--text-primary); font-family: inherit; font-size: 16px;
  outline: none; transition: border-color 0.3s;
}
.input-group input:focus { border-color: var(--indigo); }
.input-group input::placeholder { color: var(--text-muted); }
.form-message {
  margin-top: 16px; font-size: 14px; min-height: 20px;
}
.form-note { margin-top: 12px; font-size: 13px; color: var(--text-muted); }

@media (max-width: 500px) {
  .input-group { flex-direction: column; }
  .input-group .btn { width: 100%; }
}

/* ===== FAQ ===== */
.faq-container { max-width: 720px; }
.faq-list { margin-top: 48px; display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: var(--bg-card); border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius); overflow: hidden;
  transition: border-color 0.3s;
}
.faq-item[open] { border-color: rgba(99,102,241,0.3); }
.faq-question {
  padding: 20px 24px; font-weight: 600; font-size: 16px;
  cursor: pointer; list-style: none; display: flex;
  align-items: center; justify-content: space-between;
  user-select: none; transition: color 0.2s;
}
.faq-question:hover { color: var(--indigo); }
.faq-question::after {
  content: '+'; font-size: 20px; font-weight: 300; color: var(--text-muted);
  transition: transform 0.3s;
}
.faq-item[open] .faq-question::after { transform: rotate(45deg); }
.faq-answer {
  padding: 0 24px 20px; font-size: 14px; color: var(--text-secondary);
  line-height: 1.8;
}

/* ===== Footer ===== */
.footer {
  border-top: 1px solid rgba(255,255,255,0.06); padding: 48px 0;
}
.footer-content {
  display: flex; flex-direction: column; align-items: center; gap: 24px; text-align: center;
}
.footer-tagline { color: var(--text-muted); font-size: 14px; margin-top: 4px; }
.footer-links { display: flex; gap: 24px; }
.footer-links a { color: var(--text-secondary); font-size: 14px; transition: color 0.2s; }
.footer-links a:hover { color: var(--indigo); }
.footer-bottom {
  display: flex; gap: 24px; font-size: 13px; color: var(--text-muted);
}
.footer-bottom a { color: var(--text-muted); transition: color 0.2s; }
.footer-bottom a:hover { color: var(--text-primary); }

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .menu-toggle { display: flex; }
  .nav-links {
    position: fixed; top: var(--header-h); left: 0; right: 0;
    background: rgba(8,8,16,0.98); flex-direction: column;
    padding: 24px; gap: 16px; border-bottom: 1px solid rgba(255,255,255,0.06);
    transform: translateY(-100%); opacity: 0; pointer-events: none;
    transition: all 0.3s ease;
  }
  .nav-links.open { transform: translateY(0); opacity: 1; pointer-events: all; }
  .hero-actions { flex-direction: column; align-items: center; }
  .hero-stats { flex-wrap: wrap; gap: 20px; }
  .features-grid { grid-template-columns: 1fr; }
  .section { padding: 60px 0; }
  .hero { padding: 100px 0 60px; min-height: auto; }
}

/* ===== Animations ===== */
.fade-in { opacity: 0; transform: translateY(30px); transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1); }
.fade-in.visible { opacity: 1; transform: translateY(0); }