:root {
    --fb-primary: #4f46e5;
    --fb-primary-dark: #3730a3;
    --fb-primary-light: #818cf8;
    --fb-accent: #f59e0b;
    --fb-bg: #ffffff;
    --fb-surface: #f8fafc;
    --fb-border: #e2e8f0;
    --fb-text: #1e293b;
    --fb-muted: #64748b;
}

* { box-sizing: border-box; }

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    color: var(--fb-text);
    background: var(--fb-bg);
}

.py-6 { padding-top: 5rem; padding-bottom: 5rem; }

/* Navbar */
.fb-navbar {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255,255,255,.08);
}
.fb-navbar .btn-primary {
    background: var(--fb-primary);
    border-color: var(--fb-primary);
}

/* Hero */
.fb-hero {
    min-height: 100vh;
    background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 50%, #0f172a 100%);
    padding: 8rem 0 5rem;
    position: relative;
    overflow: hidden;
}
.fb-hero::before {
    content: '';
    position: absolute;
    width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(79,70,229,.3) 0%, transparent 70%);
    top: -100px; right: -100px;
    pointer-events: none;
}
.fb-hero::after {
    content: '';
    position: absolute;
    width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(245,158,11,.15) 0%, transparent 70%);
    bottom: 0; left: -50px;
    pointer-events: none;
}

.fb-gradient-text {
    background: linear-gradient(90deg, var(--fb-primary-light), var(--fb-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.fb-badge-pill {
    background: rgba(79,70,229,.2);
    border: 1px solid rgba(129,140,248,.3);
    color: var(--fb-primary-light);
    font-size: .8rem;
    letter-spacing: .03em;
}

/* App preview */
.fb-app-preview {
    background: rgba(255,255,255,.04);
    border: 1px solid rgba(255,255,255,.1);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 40px 80px rgba(0,0,0,.5);
}
.fb-browser-bar {
    background: rgba(255,255,255,.06);
    padding: .6rem 1rem;
    display: flex;
    align-items: center;
    gap: .5rem;
    border-bottom: 1px solid rgba(255,255,255,.08);
}
.fb-dot { width: 12px; height: 12px; border-radius: 50%; display: inline-block; }
.fb-url-bar {
    background: rgba(255,255,255,.08);
    color: rgba(255,255,255,.5);
    border-radius: 4px;
    padding: .2rem .75rem;
    font-size: .75rem;
    margin-left: .5rem;
}
.fb-screenshot-placeholder {
    height: 380px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,.4);
    font-size: .85rem;
    background: rgba(255,255,255,.02);
}

/* Stats bar */
.fb-stats-bar {
    background: var(--fb-surface);
    border-top: 1px solid var(--fb-border);
    border-bottom: 1px solid var(--fb-border);
}
.fb-stat-num {
    color: var(--fb-primary);
    font-weight: 800;
}

/* Section label */
.fb-section-label {
    display: inline-block;
    background: rgba(79,70,229,.1);
    color: var(--fb-primary);
    font-size: .8rem;
    font-weight: 600;
    letter-spacing: .08em;
    text-transform: uppercase;
    padding: .35rem .85rem;
    border-radius: 100px;
}

/* Feature cards */
.fb-feature-card {
    background: var(--fb-bg);
    border: 1px solid var(--fb-border);
    border-radius: 12px;
    padding: 1.75rem;
    transition: box-shadow .2s, transform .2s;
}
.fb-feature-card:hover {
    box-shadow: 0 8px 30px rgba(79,70,229,.1);
    transform: translateY(-2px);
}
.fb-feature-icon {
    width: 48px; height: 48px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
}

/* Bootstrap color overrides for custom colors */
.bg-purple-subtle { background: rgba(168,85,247,.1); }
.text-purple { color: #a855f7; }
.bg-teal-subtle { background: rgba(20,184,166,.1); }
.text-teal { color: #14b8a6; }
.bg-orange-subtle { background: rgba(249,115,22,.1); }
.text-orange { color: #f97316; }

/* Section alt */
.fb-section-alt {
    background: var(--fb-surface);
    border-top: 1px solid var(--fb-border);
    border-bottom: 1px solid var(--fb-border);
}

/* Steps */
.fb-step-num {
    width: 56px; height: 56px;
    background: linear-gradient(135deg, var(--fb-primary), var(--fb-primary-dark));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    font-weight: 700;
    margin: 0 auto;
    box-shadow: 0 4px 16px rgba(79,70,229,.3);
}

/* Billing toggle */
.fb-billing-toggle {
    display: inline-flex;
    align-items: center;
    background: var(--fb-surface);
    border: 1px solid var(--fb-border);
    border-radius: 100px;
    padding: .4rem 1.2rem;
}
.fb-billing-toggle .form-check-input:checked {
    background-color: var(--fb-primary);
    border-color: var(--fb-primary);
}

/* Pricing */
.fb-pricing-card {
    background: var(--fb-bg);
    border: 1px solid var(--fb-border);
    border-radius: 16px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
}
.fb-pricing-featured {
    background: linear-gradient(135deg, var(--fb-primary) 0%, var(--fb-primary-dark) 100%);
    border-color: transparent;
    color: white;
    position: relative;
    box-shadow: 0 20px 60px rgba(79,70,229,.35);
}
.fb-plan-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--fb-accent);
    color: #1e293b;
    font-size: .75rem;
    font-weight: 700;
    padding: .3rem 1rem;
    border-radius: 100px;
    white-space: nowrap;
}
.fb-plan-name {
    font-size: 1.1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--fb-muted);
}
.fb-pricing-featured .fb-plan-name { color: rgba(255,255,255,.7); }
.fb-feature-list li {
    padding: .35rem 0;
    font-size: .9rem;
}

/* Footer */
.fb-footer {
    background: #0f172a;
    color: rgba(255,255,255,.7);
}
.fb-footer-link {
    color: rgba(255,255,255,.5);
    text-decoration: none;
    display: block;
    margin-bottom: .4rem;
    transition: color .15s;
}
.fb-footer-link:hover { color: white; }

/* Responsive */
@media (max-width: 768px) {
    .fb-hero { padding: 7rem 0 4rem; }
    .fb-screenshot-placeholder { height: 220px; }
    .py-6 { padding-top: 3.5rem; padding-bottom: 3.5rem; }
}