/**
 * SATU PEPI - Modern Dark Landing Page
 * Inspired by Premium Tech Aesthetics (LPG Pertamina reference)
 */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Inter:wght@400;500;600&display=swap');

:root {
    --bg-main: #020617;
    --bg-card: rgba(255, 255, 255, 0.03);
    --border-card: rgba(255, 255, 255, 0.08);
    --primary: #10b981;
    --primary-glow: rgba(16, 185, 129, 0.3);
    --secondary: #3b82f6;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --glass-nav: rgba(2, 6, 23, 0.8);
    --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* --- Grid Background --- */
.grid-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 2px 2px, rgba(255, 255, 255, 0.05) 1px, transparent 0);
    background-size: 40px 40px;
    z-index: -1;
    pointer-events: none;
}

.glow-orb {
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
    border-radius: 50%;
    filter: blur(80px);
    z-index: -1;
    opacity: 0.5;
}

/* --- Navigation --- */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1.5rem 0;
    transition: var(--transition-smooth);
}

nav.scrolled {
    background: var(--glass-nav);
    backdrop-filter: blur(12px);
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-card);
}

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

.logo-wrapper {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
}

.logo-img {
    height: 42px;
    filter: brightness(1.2);
}

.brand-main {
    font-size: 1.25rem;
    font-weight: 900;
    color: white;
    background: linear-gradient(to right, #fff, var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.btn-login {
    background: var(--primary);
    color: #020617;
    padding: 0.6rem 1.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 0.85rem;
    transition: var(--transition-smooth);
    box-shadow: 0 0 20px var(--primary-glow);
}

.btn-login:hover {
    transform: scale(1.05);
    box-shadow: 0 0 30px var(--primary);
}

/* --- Hero Section --- */
.hero {
    padding: 12rem 0 8rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.2);
    border-radius: 100px;
    color: var(--primary);
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 2rem;
}

.hero h1 {
    font-size: 4.5rem;
    line-height: 1;
    margin-bottom: 1.5rem;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.hero h1 span {
    color: var(--primary);
    text-shadow: 0 0 30px var(--primary-glow);
}

.hero-desc {
    font-size: 1.25rem;
    color: var(--text-muted);
    max-width: 650px;
    margin: 0 auto 3rem;
}

.hero-btns {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
}

.btn-hero-primary {
    background: var(--primary);
    color: #020617;
    padding: 1.1rem 2.5rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 800;
    font-size: 1rem;
    transition: var(--transition-smooth);
    box-shadow: 0 0 25px var(--primary-glow);
}

.btn-hero-secondary {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-card);
    color: white;
    padding: 1.1rem 2.5rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-smooth);
}

.btn-hero-primary:hover { transform: translateY(-3px); box-shadow: 0 0 40px var(--primary); }
.btn-hero-secondary:hover { background: rgba(255, 255, 255, 0.1); border-color: var(--primary); }

/* --- Stats --- */
.stats {
    padding: 3rem 0;
    border-top: 1px solid var(--border-card);
    border-bottom: 1px solid var(--border-card);
    background: rgba(255, 255, 255, 0.01);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    text-align: center;
}

.stat-num {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: white;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* --- Features & Cards --- */
.section {
    padding: 8rem 0;
}

.section-tag {
    color: var(--primary);
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    font-size: 0.75rem;
    display: block;
    margin-bottom: 1rem;
    text-align: center;
}

.section-title {
    font-size: 3rem;
    text-align: center;
    margin-bottom: 4rem;
}

.glass-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.glass-card {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    padding: 2.5rem;
    border-radius: 24px;
    backdrop-filter: blur(8px);
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at top right, var(--primary-glow), transparent 40%);
    opacity: 0;
    transition: var(--transition-smooth);
}

.glass-card:hover {
    transform: translateY(-5px);
    border-color: rgba(16, 185, 129, 0.4);
    background: rgba(255, 255, 255, 0.05);
}

.glass-card:hover::before {
    opacity: 1;
}

.icon-wrap {
    width: 50px;
    height: 50px;
    background: rgba(16, 185, 129, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: 2rem;
}

.glass-card h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
}

.glass-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* --- Role Badges --- */
.role-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 100px;
    font-size: 0.7rem;
    font-weight: 800;
    text-transform: uppercase;
}
.role-admin { background: rgba(59, 130, 246, 0.1); color: #3b82f6; border: 1px solid rgba(59, 130, 246, 0.2); }
.role-koor { background: rgba(16, 185, 129, 0.1); color: #10b981; border: 1px solid rgba(16, 185, 129, 0.2); }
.role-pela { background: rgba(168, 85, 247, 0.1); color: #a855f7; border: 1px solid rgba(168, 85, 247, 0.2); }

/* --- Timeline Workflow --- */
.workflow-wrap {
    max-width: 800px;
    margin: 0 auto;
}

.workflow-item {
    display: flex;
    gap: 2rem;
    margin-bottom: 3rem;
    position: relative;
}

.workflow-item::after {
    content: '';
    position: absolute;
    top: 40px;
    left: 24px;
    bottom: -40px;
    width: 2px;
    background: linear-gradient(to bottom, var(--primary), transparent);
}

.workflow-item:last-child::after { display: none; }

.work-idx {
    width: 50px;
    height: 50px;
    min-width: 50px;
    background: var(--bg-main);
    border: 2px solid var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    color: var(--primary);
    box-shadow: 0 0 15px var(--primary-glow);
    z-index: 1;
}

.work-content h4 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.work-content p {
    color: var(--text-muted);
}

/* --- Footer --- */
footer {
    padding: 6rem 0 3rem;
    background: #000;
    border-top: 1px solid var(--border-card);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-logo {
    margin-bottom: 1.5rem;
}

.footer-desc {
    color: var(--text-muted);
    max-width: 400px;
}

.footer-title {
    color: white;
    font-size: 1rem;
    margin-bottom: 1.5rem;
}

.footer-link {
    display: block;
    color: var(--text-muted);
    text-decoration: none;
    margin-bottom: 0.75rem;
    transition: var(--transition-smooth);
}

.footer-link:hover { color: var(--primary); }

.copyright {
    text-align: center;
    color: #475569;
    font-size: 0.85rem;
    padding-top: 3rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
    .glass-grid { grid-template-columns: repeat(2, 1fr); }
    .hero h1 { font-size: 3rem; }
}

@media (max-width: 768px) {
    .glass-grid, .stats-grid, .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
    .hero h1 { font-size: 2.5rem; }
    .nav-links { display: none; }
}