:root {
    --bg-primary: #ffffff;
    --bg-secondary: #fafafa;
    --bg-card: #ffffff;
    --bg-hover: #f5f5f5;
    --border-color: #e5e7eb;
    --border-hover: #d1d5db;
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    --accent: #10b981;
    --accent-hover: #059669;
    --accent-light: #d1fae5;
    --accent-bg: #ecfdf5;
    --dark: #000000;
    --gradient-hero: linear-gradient(180deg, #f0fdf4 0%, #dcfce7 100%);
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.08);
    --shadow-lg: 0 10px 25px -3px rgba(0,0,0,0.1);
}

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

html { scroll-behavior: smooth; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; transition: color 0.15s; }
a:hover { color: var(--accent-hover); }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* TOP BANNER */
.top-banner {
    background: var(--accent-bg);
    padding: 12px 0;
    text-align: center;
    font-size: 14px;
    color: var(--text-primary);
    border-bottom: 1px solid var(--accent-light);
}
.top-banner .badge {
    background: var(--accent);
    color: white;
    padding: 3px 10px;
    border-radius: 4px;
    font-weight: 600;
    font-size: 12px;
    margin: 0 6px;
}
.top-banner a { font-weight: 600; margin-left: 8px; }

/* NAVBAR */
.navbar {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}
.navbar .container { display: flex; justify-content: space-between; align-items: center; }
.navbar .logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
}
.navbar .logo-icon {
    width: 32px;
    height: 32px;
    background: var(--accent);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 800;
}
.navbar .nav-links { display: flex; gap: 32px; align-items: center; }
.navbar .nav-links a {
    color: var(--text-secondary);
    font-size: 15px;
    font-weight: 500;
    transition: color 0.15s;
}
.navbar .nav-links a:hover { color: var(--text-primary); }
.navbar .nav-actions { display: flex; gap: 12px; align-items: center; }

/* BUTTONS */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 14px;
    border: none;
    cursor: pointer;
    transition: all 0.15s;
    text-decoration: none;
    line-height: 1;
}
.btn-primary {
    background: var(--dark);
    color: white;
}
.btn-primary:hover {
    background: #333;
    color: white;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}
.btn-accent {
    background: var(--accent);
    color: white;
}
.btn-accent:hover {
    background: var(--accent-hover);
    color: white;
    transform: translateY(-1px);
}
.btn-outline {
    background: white;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}
.btn-outline:hover {
    border-color: var(--text-primary);
    color: var(--text-primary);
}
.btn-lg { padding: 14px 28px; font-size: 15px; }
.btn-sm { padding: 6px 14px; font-size: 13px; }

/* HERO */
.hero {
    background: var(--gradient-hero);
    padding: 100px 0 120px;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: white;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 32px;
    box-shadow: var(--shadow-sm);
}
.hero-badge .dot {
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
}
.hero h1 {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    color: var(--text-primary);
    letter-spacing: -1.5px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}
.hero p {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 40px;
    line-height: 1.6;
}
.hero-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

/* STATS BAR */
.stats-bar {
    background: white;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    padding: 40px 0;
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    text-align: center;
}
.stat-item .value {
    font-size: 36px;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -1px;
}
.stat-item .label {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 4px;
    font-weight: 500;
}

/* SECTION */
.section { padding: 80px 0; }
.section-header { text-align: center; max-width: 700px; margin: 0 auto 60px; }
.section-header .eyebrow {
    display: inline-block;
    background: var(--accent-bg);
    color: var(--accent-hover);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 16px;
}
.section-header h2 {
    font-size: 42px;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.2;
    letter-spacing: -1px;
    margin-bottom: 16px;
}
.section-header p { font-size: 17px; color: var(--text-secondary); }

/* FEATURES GRID */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.feature-card {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 32px 28px;
    transition: all 0.2s;
}
.feature-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
.feature-icon {
    width: 48px;
    height: 48px;
    background: var(--accent-bg);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    margin-bottom: 20px;
}
.feature-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 10px;
}
.feature-card p {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.6;
}

/* HOW IT WORKS */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 900px;
    margin: 0 auto;
}
.step {
    text-align: center;
    position: relative;
}
.step-number {
    width: 56px;
    height: 56px;
    background: var(--dark);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    font-weight: 700;
    margin: 0 auto 20px;
}
.step h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.step p { color: var(--text-secondary); font-size: 14px; }

/* CODE PREVIEW */
.code-preview {
    background: #1a1a1a;
    color: #e5e5e5;
    border-radius: 12px;
    padding: 32px;
    font-family: 'SF Mono', Monaco, 'Cascadia Code', monospace;
    font-size: 14px;
    line-height: 1.7;
    overflow-x: auto;
    box-shadow: var(--shadow-lg);
    text-align: left;
}
.code-preview .keyword { color: #f97583; }
.code-preview .string { color: #85e89d; }
.code-preview .comment { color: #6a737d; }
.code-preview .function { color: #79b8ff; }

/* PRICING */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.pricing-card {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 32px 24px;
    text-align: center;
    transition: all 0.2s;
    position: relative;
}
.pricing-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
.pricing-card.popular {
    border: 2px solid var(--accent);
    background: linear-gradient(180deg, var(--accent-bg) 0%, white 40%);
}
.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: white;
    padding: 4px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.5px;
}
.pricing-card .plan-name {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 20px;
}
.pricing-card .price {
    font-size: 48px;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -2px;
    line-height: 1;
}
.pricing-card .price span {
    font-size: 15px;
    color: var(--text-secondary);
    font-weight: 500;
}
.pricing-card ul {
    list-style: none;
    padding: 20px 0;
    text-align: left;
    border-top: 1px solid var(--border-color);
    margin-top: 20px;
}
.pricing-card ul li {
    padding: 8px 0;
    color: var(--text-secondary);
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.pricing-card ul li svg { flex-shrink: 0; color: var(--accent); }

/* CTA SECTION */
.cta-section {
    background: var(--dark);
    color: white;
    padding: 80px 0;
    text-align: center;
    border-radius: 20px;
    margin: 40px 24px;
}
.cta-section h2 { color: white; font-size: 40px; margin-bottom: 16px; }
.cta-section p { color: #a3a3a3; font-size: 17px; margin-bottom: 32px; }

/* FOOTER */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 60px 0 30px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}
.footer-brand p { color: var(--text-secondary); font-size: 14px; margin-top: 12px; max-width: 300px; }
.footer-col h4 {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 16px;
}
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { color: var(--text-secondary); font-size: 14px; }
.footer-col ul li a:hover { color: var(--text-primary); }
.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: 30px;
    text-align: center;
    color: var(--text-muted);
    font-size: 13px;
}

/* AUTH PAGES */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    padding: 40px 20px;
}
.auth-card {
    width: 100%;
    max-width: 420px;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 40px;
    box-shadow: var(--shadow-md);
}
.auth-card .logo {
    text-align: center;
    margin-bottom: 24px;
    font-size: 24px;
    font-weight: 800;
    color: var(--text-primary);
}
.auth-card h2 {
    text-align: center;
    font-size: 24px;
    margin-bottom: 8px;
    font-weight: 700;
}
.auth-card .subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 32px;
}
.error-msg {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #dc2626;
    padding: 12px;
    border-radius: 8px;
    font-size: 13px;
    margin-bottom: 20px;
    text-align: center;
}

/* FORMS */
.form-group { margin-bottom: 16px; }
.form-group label {
    display: block;
    font-size: 13px;
    color: var(--text-primary);
    margin-bottom: 6px;
    font-weight: 600;
}
.form-group input, .form-group textarea, .form-group select {
    width: 100%;
    padding: 12px 14px;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
    transition: all 0.15s;
    font-family: inherit;
}
.form-group input:focus, .form-group textarea:focus {
    border-color: var(--accent);
    outline: none;
    box-shadow: 0 0 0 3px var(--accent-bg);
}

/* DASHBOARD */
.dashboard-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    min-height: 100vh;
    background: var(--bg-secondary);
}
.sidebar {
    background: white;
    border-right: 1px solid var(--border-color);
    padding: 24px 16px;
    display: flex;
    flex-direction: column;
}
.sidebar .logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 32px;
    padding: 0 12px;
}
.sidebar .logo-icon {
    width: 28px;
    height: 28px;
    background: var(--accent);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 800;
    font-size: 14px;
}
.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    margin-bottom: 4px;
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    transition: all 0.15s;
}
.sidebar-nav a:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}
.sidebar-nav a.active {
    background: var(--accent-bg);
    color: var(--accent-hover);
    font-weight: 600;
}
.sidebar-footer {
    margin-top: auto;
    padding: 16px 12px;
    border-top: 1px solid var(--border-color);
    font-size: 12px;
    color: var(--text-secondary);
}

.main-content { padding: 32px 40px; }
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
}
.page-header h2 {
    font-size: 26px;
    font-weight: 700;
    color: var(--text-primary);
}

.dash-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 32px;
}
.dash-stat-card {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
}
.dash-stat-card .label {
    font-size: 13px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
    margin-bottom: 8px;
}
.dash-stat-card .value {
    font-size: 32px;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}
.dash-stat-card .change {
    font-size: 13px;
    color: var(--accent-hover);
    margin-top: 4px;
    font-weight: 600;
}

.dash-card {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
}
.dash-card h3 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

/* TABLE */
.table-wrapper { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th {
    text-align: left;
    padding: 12px 16px;
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-bottom: 1px solid var(--border-color);
}
td {
    padding: 14px 16px;
    font-size: 14px;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
}
tr:last-child td { border-bottom: none; }
tr:hover { background: var(--bg-secondary); }

/* API KEY BOX */
.api-key-box {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 16px;
    font-family: 'SF Mono', monospace;
    font-size: 14px;
    color: var(--text-primary);
    word-break: break-all;
    cursor: pointer;
    transition: all 0.15s;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}
.api-key-box:hover { border-color: var(--accent); background: var(--accent-bg); }
.api-key-box .copy-btn {
    background: white;
    border: 1px solid var(--border-color);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    color: var(--text-primary);
    flex-shrink: 0;
}

/* CODE BLOCK */
.code-block {
    background: #1a1a1a;
    color: #e5e5e5;
    border-radius: 8px;
    padding: 20px;
    overflow-x: auto;
    font-family: 'SF Mono', Monaco, monospace;
    font-size: 13px;
    line-height: 1.6;
}

/* BADGE */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.3px;
}
.badge-success { background: var(--accent-bg); color: var(--accent-hover); }
.badge-error { background: #fef2f2; color: #dc2626; }
.badge-info { background: #eff6ff; color: #2563eb; }
.badge-warning { background: #fef3c7; color: #d97706; }

/* NEWS ITEM */
.news-item {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 16px;
    transition: all 0.2s;
}
.news-item:hover { border-color: var(--accent); box-shadow: var(--shadow-md); }
.news-item h4 { font-size: 18px; font-weight: 700; margin-bottom: 8px; color: var(--text-primary); }
.news-item .date {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 12px;
    display: block;
}
.news-item p { color: var(--text-secondary); font-size: 14px; line-height: 1.6; }

/* GRID 2 COL */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }

/* RESPONSIVE */
@media (max-width: 900px) {
    .hero h1 { font-size: 38px; }
    .section-header h2 { font-size: 30px; }
    .features-grid, .pricing-grid, .stats-grid, .dash-stats, .footer-grid, .grid-2 {
        grid-template-columns: 1fr;
    }
    .steps-grid { grid-template-columns: 1fr; }
    .dashboard-layout { grid-template-columns: 1fr; }
    .sidebar { display: none; }
    .main-content { padding: 20px; }
    .navbar .nav-links { display: none; }
}

/* SCROLLBAR */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--border-hover); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

::selection { background: var(--accent-light); color: var(--accent-hover); }