/* Smart Marketing Agent — Landing page styles (dipakai index.php) */
:root {
    --brand-1: #667eea;
    --brand-2: #764ba2;
    --grad-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --grad-secondary: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --ink: #1f2937;
    --muted: #6b7280;
    --bg-soft: #f8fafc;
    --border: #e5e7eb;
    --radius: 16px;
    --shadow: 0 10px 30px rgba(102, 126, 234, 0.12);
    --shadow-lg: 0 20px 50px rgba(102, 126, 234, 0.18);
}

html { scroll-behavior: smooth; }

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    color: var(--ink);
    overflow-x: hidden;
}

section[id] { scroll-margin-top: 76px; }

/* ---------- Navbar ---------- */
.navbar-landing {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid transparent;
    transition: border-color .3s ease, box-shadow .3s ease;
}
.navbar-landing.scrolled {
    border-bottom-color: var(--border);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}
.brand-text {
    font-weight: 700;
    background: var(--grad-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.navbar-landing .nav-link { color: var(--ink); font-weight: 500; }
.navbar-landing .nav-link:hover { color: var(--brand-1); }

/* ---------- Hero ---------- */
.hero-section {
    background: var(--grad-primary);
    position: relative;
    overflow: hidden;
    padding: 120px 0 80px;
}
.hero-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(600px 400px at 15% 20%, rgba(255, 255, 255, 0.14), transparent 60%),
        radial-gradient(500px 350px at 85% 75%, rgba(255, 255, 255, 0.10), transparent 60%);
}
.hero-section .container { position: relative; z-index: 2; }
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.25);
    color: #fff;
    padding: .4rem 1rem;
    border-radius: 50px;
    font-size: .85rem;
    font-weight: 600;
}
.hero-title { color: #fff; }
.hero-subtitle { color: rgba(255, 255, 255, 0.85); }

.btn-gradient {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    background: var(--grad-secondary);
    color: #fff;
    font-weight: 600;
    padding: .75rem 1.6rem;
    border-radius: 50px;
    border: none;
    text-decoration: none;
    transition: transform .2s ease, box-shadow .2s ease;
}
.btn-gradient:hover { transform: translateY(-2px); box-shadow: 0 10px 25px rgba(79, 172, 254, 0.35); color: #fff; }

.btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    background: transparent;
    color: #fff;
    font-weight: 600;
    padding: .75rem 1.6rem;
    border-radius: 50px;
    border: 2px solid rgba(255, 255, 255, 0.6);
    text-decoration: none;
    transition: background .2s ease, color .2s ease;
}
.btn-ghost:hover { background: #fff; color: var(--brand-2); }

/* Mockup panel (hero kanan) */
.mockup {
    background: #fff;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    padding: 1.5rem;
}
.mockup .mockup-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border);
    padding-bottom: .75rem;
    margin-bottom: 1rem;
}
.segment-chip { border-radius: 10px; color: #fff; font-weight: 600; padding: 1rem; }
.segment-chip small { color: rgba(255, 255, 255, 0.85); font-weight: 400; }

/* ---------- Stats ---------- */
.stats-section { background: var(--bg-soft); padding: 48px 0; }
.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--grad-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.1;
}

/* ---------- Sections generik ---------- */
.section-title {
    font-size: 2rem;
    font-weight: 700;
    background: var(--grad-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: .5rem;
}
.section-subtitle { color: var(--muted); }

/* ---------- Feature cards ---------- */
.feature-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    height: 100%;
    transition: transform .25s ease, box-shadow .25s ease;
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.feature-icon {
    width: 64px; height: 64px;
    border-radius: 16px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.6rem; color: #fff;
    margin-bottom: 1.25rem;
}
.icon-rfm { background: var(--grad-primary); }
.icon-ai { background: var(--grad-secondary); }
.icon-insight { background: linear-gradient(135deg, #fa709a 0%, #fee140 100%); }

/* ---------- Cara kerja ---------- */
.step-item { position: relative; text-align: center; }
.step-number {
    width: 56px; height: 56px;
    margin: 0 auto 1rem;
    border-radius: 50%;
    background: var(--grad-primary);
    color: #fff;
    font-size: 1.4rem; font-weight: 700;
    display: flex; align-items: center; justify-content: center;
}

/* ---------- Segmen RFM (5 segmen sesuai src/Rfm.php) ---------- */
.seg-card { border-radius: var(--radius); padding: 1.5rem; height: 100%; color: #fff; }
.seg-card .seg-icon { font-size: 1.8rem; margin-bottom: .75rem; }
.seg-card p { color: rgba(255, 255, 255, 0.9); margin-bottom: 0; }
.seg-champions { background: linear-gradient(135deg, #f59e0b, #f97316); }
.seg-loyal { background: linear-gradient(135deg, #10b981, #059669); }
.seg-potential { background: linear-gradient(135deg, #3b82f6, #6366f1); }
.seg-risk { background: linear-gradient(135deg, #ef4444, #dc2626); }
.seg-lost { background: linear-gradient(135deg, #6b7280, #4b5563); }

/* ---------- CTA ---------- */
.cta-section { background: var(--grad-primary); }
.cta-section h2 { color: #fff; }
.cta-section p { color: rgba(255, 255, 255, 0.85); }

/* ---------- Footer ---------- */
.footer { background: #1f2937; color: rgba(255, 255, 255, 0.8); }
.footer a { color: rgba(255, 255, 255, 0.8); text-decoration: none; }
.footer a:hover { color: #fff; }
.footer .footer-head { color: #fff; font-weight: 700; }

/* ---------- Reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.revealed { opacity: 1; transform: none; }

@media (max-width: 991.98px) {
    .hero-section { padding: 96px 0 56px; }
}