/* ============================================
   PredictNG — Landing Page Styles
   ============================================ */

:root {
    --bg: #0a0e17;
    --bg-card: #111827;
    --bg-card-hover: #1a2332;
    --border: rgba(255,255,255,0.08);
    --text: #e2e8f0;
    --text-muted: #94a3b8;
    --text-dim: #64748b;
    --primary: #3b82f6;
    --primary-light: #60a5fa;
    --primary-dark: #2563eb;
    --accent: #10b981;
    --accent-light: #34d399;
    --danger: #ef4444;
    --warning: #f59e0b;
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 16px;
}

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

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;
}

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

/* ============================================
   HEADER
   ============================================ */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(10, 14, 23, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: 0 24px;
    height: 64px;
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.logo-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text);
}

.logo-accent { color: var(--primary-light); }

.header-nav {
    display: flex;
    align-items: center;
    gap: 24px;
}

.nav-link {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-muted);
    transition: color 0.2s;
}

.nav-link:hover { color: var(--text); }

.nav-login {
    color: var(--primary-light);
    font-weight: 600;
}

.nav-btn {
    display: inline-block;
    padding: 8px 20px;
    background: var(--primary);
    color: #fff;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    transition: background 0.2s;
}

.nav-btn:hover { background: var(--primary-dark); color: #fff; }

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

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-muted);
    border-radius: 2px;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-block;
    font-family: inherit;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    border: none;
    border-radius: var(--radius-sm);
    transition: all 0.2s;
    text-decoration: none;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
    padding: 12px 28px;
}

.btn-primary:hover { background: var(--primary-dark); color: #fff; }

.btn-outline {
    background: transparent;
    color: var(--primary-light);
    border: 1px solid var(--primary);
    padding: 12px 28px;
}

.btn-outline:hover { background: rgba(59,130,246,0.1); color: var(--primary-light); }

.btn-lg { padding: 14px 36px; font-size: 1rem; }
.btn-block { display: block; width: 100%; }

/* ============================================
   HERO
   ============================================ */
.hero {
    padding: 140px 24px 80px;
    text-align: center;
    background: radial-gradient(ellipse at 50% 0%, rgba(59,130,246,0.08) 0%, transparent 60%);
}

.hero-inner {
    max-width: 800px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary-light);
    background: rgba(59,130,246,0.1);
    border: 1px solid rgba(59,130,246,0.2);
    border-radius: 20px;
    padding: 6px 16px;
    margin-bottom: 24px;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.hero-title {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.hero-accent { color: var(--accent); }

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-muted);
    max-width: 620px;
    margin: 0 auto 32px;
    line-height: 1.7;
}

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

.hero-note {
    font-size: 0.8125rem;
    color: var(--text-dim);
}

/* ============================================
   SECTIONS
   ============================================ */
.section-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 12px;
}

.section-subtitle {
    font-size: 1.0625rem;
    color: var(--text-muted);
    text-align: center;
    margin-bottom: 48px;
}

/* ============================================
   FEATURES
   ============================================ */
.features {
    padding: 80px 24px;
    border-top: 1px solid var(--border);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

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

.feature-card:hover { border-color: rgba(59,130,246,0.3); }

.feature-icon {
    font-size: 1.75rem;
    margin-bottom: 14px;
}

.feature-card h3 {
    font-size: 1.0625rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.feature-card p {
    font-size: 0.875rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* ============================================
   ACCURACY
   ============================================ */
.accuracy-section {
    padding: 80px 24px;
    border-top: 1px solid var(--border);
    background: rgba(17, 24, 39, 0.5);
}

.accuracy-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
}

.accuracy-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 12px;
    text-align: center;
}

.accuracy-card.loading .accuracy-value {
    opacity: 0.3;
}

.accuracy-horizon {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--primary-light);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 8px;
}

.accuracy-value {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 4px;
}

.accuracy-label {
    font-size: 0.7rem;
    color: var(--text-dim);
}

/* Guarantee */
.hero-guarantee {
    font-size: 1.8rem;
    font-weight: 800;
    color: #3b82f6;
    letter-spacing: 0.08em;
    margin: 12px 0 6px;
}

.hero-guarantee-detail {
    font-size: 0.85rem;
    color: var(--text-dim);
    max-width: 600px;
    margin: 0 auto 16px;
    line-height: 1.5;
}

.guarantee-link {
    color: #3b82f6;
    text-decoration: underline;
}

/* ============================================
   PRICING
   ============================================ */
.pricing-section {
    padding: 80px 24px;
    border-top: 1px solid var(--border);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    max-width: 700px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    text-align: center;
    position: relative;
}

.pricing-featured {
    border-color: var(--primary);
    box-shadow: 0 0 30px rgba(59,130,246,0.1);
}

.pricing-save {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 16px;
    border-radius: 12px;
}

.pricing-badge {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.pricing-amount {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 24px;
}

.pricing-period {
    font-size: 1rem;
    font-weight: 400;
    color: var(--text-muted);
}

.pricing-features {
    list-style: none;
    text-align: left;
    margin-bottom: 28px;
}

.pricing-features li {
    padding: 8px 0;
    font-size: 0.875rem;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
}

.pricing-features li:last-child { border-bottom: none; }

.pricing-note {
    font-size: 0.75rem;
    color: var(--text-dim);
    margin-top: 12px;
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
    padding: 48px 24px;
    border-top: 1px solid var(--border);
    text-align: center;
}

.footer-inner {
    max-width: 800px;
    margin: 0 auto;
}

.footer-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 16px;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.footer-logo {
    width: 24px;
    height: 24px;
    border-radius: 6px;
}

.footer-links {
    display: flex;
    gap: 24px;
    justify-content: center;
    margin-bottom: 16px;
}

.footer-links a {
    font-size: 0.8125rem;
    color: var(--text-dim);
}

.footer-links a:hover { color: var(--text-muted); }

.footer-copy {
    font-size: 0.75rem;
    color: var(--text-dim);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
    .header-nav { display: none; }
    .mobile-menu-btn { display: flex; }
    .hero-title { font-size: 2rem; }
    .hero { padding: 120px 20px 60px; }
    .features-grid { grid-template-columns: 1fr; }
    .accuracy-grid { grid-template-columns: repeat(2, 1fr); }
    .pricing-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    .hero-title { font-size: 1.625rem; }
    .accuracy-grid { grid-template-columns: 1fr 1fr; }
}

/* Best Deal Badge */
.pricing-best-deal {
    display: inline-block;
    color: #f59e0b;
    font-size: 0.875rem;
    font-weight: 700;
    padding: 4px 0;
    margin-bottom: 12px;
    letter-spacing: 0.03em;
    background: none;
}

/* Accuracy description and pending state */
.accuracy-description {
    margin-top: 24px;
    font-size: 0.85rem;
    color: var(--text-dim);
    text-align: center;
    max-width: 640px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.accuracy-value.pending {
    font-size: 1.2rem;
    color: var(--text-dim);
    opacity: 0.6;
}