/* ===== AI4Ecommerce — Cyan Theme ===== */
:root {
  --primary: #00B4D8;
  --primary-dark: #0096B7;
  --primary-light: #90E0EF;
  --primary-bg: #CAF0F8;
  --dark: #0B1622;
  --dark-card: #121E2E;
  --dark-surface: #1A2A3C;
  --text: #E8F1F5;
  --text-muted: #8DA4B8;
  --success: #10B981;
  --warning: #F59E0B;
  --danger: #EF4444;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--dark);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

a { color: var(--primary); text-decoration: none; transition: color .2s; }
a:hover { color: var(--primary-light); }

/* ---- Layout ---- */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.page-wrapper { min-height: calc(100vh - 70px); padding: 40px 0; }

/* ---- Navbar ---- */
.navbar {
  background: var(--dark-card);
  border-bottom: 1px solid rgba(0,180,216,.15);
  padding: 0 20px;
  height: 70px;
  display: flex;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
}
.navbar .container { display: flex; align-items: center; justify-content: space-between; width: 100%; }
.navbar-brand {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.5px;
}
.navbar-brand span { color: var(--text); }
.nav-links { display: flex; align-items: center; gap: 8px; }
.nav-links a {
  color: var(--text-muted);
  padding: 8px 14px;
  border-radius: 8px;
  font-size: .9rem;
  font-weight: 500;
  transition: all .2s;
}
.nav-links a:hover, .nav-links a.active { color: var(--primary); background: rgba(0,180,216,.1); }
.nav-toggle { display: none; background: none; border: none; color: var(--text); font-size: 1.5rem; cursor: pointer; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: .95rem;
  border: none;
  cursor: pointer;
  transition: all .2s;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; transform: translateY(-1px); box-shadow: 0 6px 20px rgba(0,180,216,.35); }
.btn-outline { background: transparent; border: 2px solid var(--primary); color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-dark { background: var(--dark-surface); color: var(--text); }
.btn-dark:hover { background: rgba(0,180,216,.15); }
.btn-sm { padding: 8px 16px; font-size: .85rem; }
.btn-lg { padding: 16px 32px; font-size: 1.1rem; }
.btn-block { width: 100%; }

/* ---- Cards ---- */
.card {
  background: var(--dark-card);
  border: 1px solid rgba(0,180,216,.1);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  transition: border-color .3s, transform .3s;
}
.card:hover { border-color: rgba(0,180,216,.3); }
.card-header { font-size: 1.2rem; font-weight: 700; margin-bottom: 16px; color: var(--text); }
.card-icon { font-size: 2rem; margin-bottom: 12px; }

/* ---- Forms ---- */
.form-group { margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 6px; font-weight: 600; font-size: .9rem; color: var(--text-muted); }
.form-control {
  width: 100%;
  padding: 12px 16px;
  background: var(--dark-surface);
  border: 1px solid rgba(0,180,216,.2);
  border-radius: 8px;
  color: var(--text);
  font-size: .95rem;
  transition: border-color .2s;
}
.form-control:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(0,180,216,.15); }
textarea.form-control { min-height: 120px; resize: vertical; }
select.form-control { cursor: pointer; }

/* ---- Alerts ---- */
.alert {
  padding: 14px 20px;
  border-radius: 8px;
  margin-bottom: 20px;
  font-size: .9rem;
  font-weight: 500;
}
.alert-success { background: rgba(16,185,129,.15); border: 1px solid rgba(16,185,129,.3); color: #6EE7B7; }
.alert-danger { background: rgba(239,68,68,.15); border: 1px solid rgba(239,68,68,.3); color: #FCA5A5; }
.alert-warning { background: rgba(245,158,11,.15); border: 1px solid rgba(245,158,11,.3); color: #FCD34D; }
.alert-info { background: rgba(0,180,216,.1); border: 1px solid rgba(0,180,216,.25); color: var(--primary-light); }

/* ---- Hero ---- */
.hero {
  text-align: center;
  padding: 80px 20px;
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-card) 100%);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 60% 40%, rgba(0,180,216,.08) 0%, transparent 50%);
  pointer-events: none;
}
.hero h1 { font-size: 3rem; font-weight: 800; margin-bottom: 16px; line-height: 1.15; }
.hero h1 .highlight { color: var(--primary); }
.hero p { font-size: 1.2rem; color: var(--text-muted); max-width: 600px; margin: 0 auto 32px; }
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ---- Features Grid ---- */
.section-title { text-align: center; font-size: 2rem; font-weight: 800; margin-bottom: 12px; }
.section-sub { text-align: center; color: var(--text-muted); margin-bottom: 48px; font-size: 1.05rem; }
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  margin-bottom: 60px;
}
.feature-card { text-align: center; padding: 36px 24px; }
.feature-card:hover { transform: translateY(-4px); }
.feature-card h3 { margin-bottom: 8px; font-size: 1.1rem; }
.feature-card p { color: var(--text-muted); font-size: .9rem; }

/* ---- Pricing ---- */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  max-width: 960px;
  margin: 0 auto;
}
.pricing-card { text-align: center; padding: 40px 28px; position: relative; }
.pricing-card.popular { border-color: var(--primary); }
.pricing-card.popular::before {
  content: 'MOST POPULAR';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary);
  color: #fff;
  padding: 4px 16px;
  border-radius: 20px;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: 1px;
}
.pricing-card .price { font-size: 3rem; font-weight: 800; color: var(--primary); }
.pricing-card .price span { font-size: 1rem; color: var(--text-muted); font-weight: 400; }
.pricing-card .plan-name { font-size: 1.3rem; font-weight: 700; margin-bottom: 4px; }
.pricing-card ul { list-style: none; margin: 24px 0; text-align: left; }
.pricing-card ul li { padding: 8px 0; color: var(--text-muted); font-size: .9rem; border-bottom: 1px solid rgba(255,255,255,.05); }
.pricing-card ul li::before { content: '\2713'; color: var(--primary); margin-right: 10px; font-weight: 700; }

/* ---- Dashboard ---- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 32px;
}
.stat-card { text-align: center; padding: 24px; }
.stat-card .stat-value { font-size: 2.2rem; font-weight: 800; color: var(--primary); }
.stat-card .stat-label { color: var(--text-muted); font-size: .85rem; margin-top: 4px; }

.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-bottom: 40px;
}
.tool-card { padding: 24px; cursor: pointer; }
.tool-card:hover { transform: translateY(-3px); border-color: var(--primary); }
.tool-card h3 { font-size: 1rem; margin-top: 8px; }
.tool-card p { color: var(--text-muted); font-size: .85rem; margin-top: 4px; }

/* ---- Result Box ---- */
.result-box {
  background: var(--dark-surface);
  border: 1px solid rgba(0,180,216,.2);
  border-radius: var(--radius);
  padding: 24px;
  margin-top: 24px;
  white-space: pre-wrap;
  line-height: 1.7;
  font-size: .95rem;
}
.result-box h3 { color: var(--primary); margin-bottom: 12px; }

/* ---- Tool Page Layout ---- */
.tool-page { max-width: 800px; margin: 0 auto; }
.tool-page h1 { font-size: 1.8rem; font-weight: 800; margin-bottom: 8px; }
.tool-page .tool-desc { color: var(--text-muted); margin-bottom: 28px; }

/* ---- Recent Table ---- */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 12px 16px; text-align: left; border-bottom: 1px solid rgba(255,255,255,.06); font-size: .9rem; }
th { color: var(--text-muted); font-weight: 600; font-size: .8rem; text-transform: uppercase; letter-spacing: .5px; }
td { color: var(--text); }

/* ---- Auth Pages ---- */
.auth-page { display: flex; align-items: center; justify-content: center; min-height: calc(100vh - 70px); padding: 40px 20px; }
.auth-card { width: 100%; max-width: 420px; }
.auth-card h1 { text-align: center; margin-bottom: 8px; font-size: 1.6rem; }
.auth-card .auth-sub { text-align: center; color: var(--text-muted); margin-bottom: 28px; font-size: .95rem; }

/* ---- Footer ---- */
.footer {
  text-align: center;
  padding: 32px 20px;
  color: var(--text-muted);
  font-size: .85rem;
  border-top: 1px solid rgba(255,255,255,.05);
  margin-top: 60px;
}

/* ---- Badges ---- */
.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: .75rem;
  font-weight: 600;
}
.badge-primary { background: rgba(0,180,216,.15); color: var(--primary); }
.badge-success { background: rgba(16,185,129,.15); color: var(--success); }

/* ---- Loading Spinner ---- */
.spinner { display: none; text-align: center; padding: 40px; }
.spinner.active { display: block; }
.spinner::after {
  content: '';
  display: inline-block;
  width: 36px;
  height: 36px;
  border: 3px solid rgba(0,180,216,.2);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---- Mobile ---- */
@media (max-width: 768px) {
  .hero h1 { font-size: 2rem; }
  .hero p { font-size: 1rem; }
  .hero { padding: 50px 20px; }
  .nav-links { display: none; flex-direction: column; position: absolute; top: 70px; left: 0; right: 0; background: var(--dark-card); padding: 16px; border-bottom: 1px solid rgba(0,180,216,.15); }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
  .features-grid, .pricing-grid, .tools-grid, .stats-grid { grid-template-columns: 1fr; }
  .section-title { font-size: 1.5rem; }
  .card { padding: 20px; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 1.6rem; }
  .btn-lg { padding: 14px 24px; font-size: 1rem; }
}