/* =========================================================
   BidCraft Landing Page — Premium Dark Theme
   ========================================================= */

/* ── Reset & Base ────────────────────────────────────── */

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

:root {
  --bg: #0A0F1C;
  --bg-card: #111827;
  --bg-card-hover: #1A2235;
  --border: #1E293B;
  --text: #E2E8F0;
  --text-muted: #94A3B8;
  --text-dim: #64748B;
  --accent: #10B981;
  --accent-dark: #059669;
  --purple: #8B5CF6;
  --radius: 12px;
}

html {
  scroll-behavior: smooth;
}

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

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

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

/* ── Gradient Text ───────────────────────────────────── */

.gradient-text {
  background: linear-gradient(135deg, #10B981, #34D399, #6EE7B7);
  -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-weight: 600;
  border-radius: 8px;
  transition: all 0.2s ease;
  cursor: pointer;
  border: none;
  font-family: inherit;
}

.btn-sm { padding: 8px 18px; font-size: 14px; }
.btn-lg { padding: 14px 32px; font-size: 16px; }
.btn-full { width: 100%; padding: 12px; font-size: 15px; }

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #FFF;
  box-shadow: 0 4px 20px rgba(16, 185, 129, 0.3);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(16, 185, 129, 0.45);
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
}
.btn-ghost:hover {
  background: var(--bg-card);
  color: var(--text);
}

/* ── Nav ─────────────────────────────────────────────── */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 15, 28, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 18px;
  font-weight: 800;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  font-size: 14px;
  color: var(--text-muted);
  transition: color 0.15s;
}
.nav-links a:hover { color: var(--text); }

/* ── Hero ────────────────────────────────────────────── */

.hero {
  position: relative;
  padding: 160px 0 100px;
  text-align: center;
  overflow: hidden;
}

.hero-inner {
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.hero-sub {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto 8px;
}

.hero-sub-ur {
  font-size: 16px;
  color: var(--text-dim);
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.hero-note {
  font-size: 13px;
  color: var(--text-dim);
}

.hero-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.08), transparent 70%);
  pointer-events: none;
}

/* ── Social Proof ────────────────────────────────────── */

.proof {
  padding: 40px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.proof-grid {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
}

.proof-stat {
  text-align: center;
}

.proof-num {
  display: block;
  font-size: 36px;
  font-weight: 900;
  color: var(--accent);
}

.proof-label {
  font-size: 13px;
  color: var(--text-dim);
  font-weight: 500;
}

.proof-divider {
  width: 1px;
  height: 48px;
  background: var(--border);
}

/* ── Section Headers ─────────────────────────────────── */

.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-header h2 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  margin-bottom: 12px;
}

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

/* ── Features ────────────────────────────────────────── */

.features {
  padding: 100px 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}

.feature-card {
  padding: 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all 0.2s;
}

.feature-card:hover {
  background: var(--bg-card-hover);
  transform: translateY(-2px);
  border-color: rgba(16, 185, 129, 0.2);
}

.feature-icon {
  font-size: 28px;
  margin-bottom: 14px;
}

.feature-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ── How It Works ────────────────────────────────────── */

.how {
  padding: 100px 0;
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.steps-grid {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.step-card {
  flex: 1;
  min-width: 240px;
  max-width: 320px;
  padding: 28px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-align: center;
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #FFF;
  font-weight: 800;
  font-size: 18px;
  border-radius: 50%;
  margin-bottom: 14px;
}

.step-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}

.step-card p {
  font-size: 13px;
  color: var(--text-muted);
}

.step-arrow {
  font-size: 24px;
  color: var(--text-dim);
  font-weight: 700;
}

/* ── Pricing ─────────────────────────────────────────── */

.pricing {
  padding: 100px 0;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  max-width: 700px;
  margin: 0 auto;
}

.price-card {
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-align: center;
}

.price-card-pro {
  border-color: rgba(139, 92, 246, 0.3);
  background: linear-gradient(180deg, #111827, #130F25);
  position: relative;
}

.price-badge {
  display: inline-block;
  padding: 4px 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 50px;
  font-size: 12px;
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.price-badge-pro {
  background: rgba(139, 92, 246, 0.15);
  border-color: rgba(139, 92, 246, 0.3);
  color: var(--purple);
}

.price-amount {
  font-size: 48px;
  font-weight: 900;
  color: var(--text);
}

.price-period {
  font-size: 14px;
  color: var(--text-dim);
  margin-bottom: 24px;
}

.price-features {
  list-style: none;
  text-align: left;
  margin-bottom: 24px;
}

.price-features li {
  padding: 8px 0;
  font-size: 14px;
  color: var(--text-muted);
  border-bottom: 1px solid rgba(30, 41, 59, 0.5);
}

.price-note {
  font-size: 12px;
  color: var(--text-dim);
  margin-top: 12px;
}

/* ── FAQ ─────────────────────────────────────────────── */

.faq {
  padding: 100px 0;
  background: var(--bg-card);
  border-top: 1px solid var(--border);
}

.faq-list {
  max-width: 700px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-item summary {
  padding: 20px 0;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  color: var(--text);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-item summary::after {
  content: '+';
  font-size: 20px;
  color: var(--text-dim);
  transition: transform 0.2s;
}

.faq-item[open] summary::after {
  content: '−';
  color: var(--accent);
}

.faq-item p {
  padding: 0 0 20px;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ── Final CTA ───────────────────────────────────────── */

.final-cta {
  padding: 100px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.final-cta::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.06), transparent 70%);
  pointer-events: none;
}

.final-cta h2 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  margin-bottom: 12px;
}

.final-cta p {
  font-size: 16px;
  color: var(--text-muted);
  margin-bottom: 28px;
}

/* ── Footer ──────────────────────────────────────────── */

.footer {
  padding: 32px 0;
  border-top: 1px solid var(--border);
}

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

.footer-brand {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  font-size: 14px;
}

.footer-copy {
  font-size: 13px;
  color: var(--text-dim);
}

/* ── Responsive ──────────────────────────────────────── */

@media (max-width: 768px) {
  .nav-links a:not(.btn) { display: none; }
  .proof-grid { flex-direction: column; gap: 20px; }
  .proof-divider { width: 48px; height: 1px; }
  .steps-grid { flex-direction: column; }
  .step-arrow { transform: rotate(90deg); }
  .footer-inner { flex-direction: column; gap: 12px; text-align: center; }
}