/* Proteus SDK Portal — Style */
:root {
    --bg: #0a0a0f;
    --bg-card: #12121a;
    --bg-dark: #08080d;
    --text: #e4e4eb;
    --text-muted: #8888a0;
    --accent: #7c5cfc;
    --accent-light: #9b80ff;
    --accent-glow: rgba(124, 92, 252, 0.15);
    --pater: #e74c3c;
    --filius: #3498db;
    --spiritus: #2ecc71;
    --border: #1e1e2e;
    --radius: 12px;
}

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

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

.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

/* Navbar */
.navbar {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 16px 0;
}
.nav-content { display: flex; align-items: center; justify-content: space-between; }
.logo { display: flex; align-items: center; gap: 10px; font-size: 1.2rem; font-weight: 600; }
.logo-icon { color: var(--accent); font-size: 1.4rem; }
.version { color: var(--accent); font-size: 0.75rem; font-weight: 500; background: var(--accent-glow); padding: 2px 8px; border-radius: 4px; }
.nav-links { display: flex; gap: 24px; }
.nav-links a { color: var(--text-muted); text-decoration: none; font-size: 0.9rem; transition: color 0.2s; }
.nav-links a:hover { color: var(--text); }

/* Hero */
.hero {
    padding: 160px 0 100px;
    text-align: center;
    background: radial-gradient(ellipse at 50% 0%, var(--accent-glow) 0%, transparent 70%);
}
.hero-badge {
    display: inline-block; padding: 6px 16px; border-radius: 20px;
    border: 1px solid var(--border); color: var(--text-muted);
    font-size: 0.8rem; letter-spacing: 0.5px; margin-bottom: 24px;
}
.hero h1 { font-size: 3.5rem; font-weight: 700; margin-bottom: 16px; }
.highlight { color: var(--accent); }
.hero-subtitle { font-size: 1.3rem; color: var(--text-muted); margin-bottom: 12px; }
.hero-description { max-width: 680px; margin: 0 auto 32px; color: var(--text-muted); font-size: 0.95rem; }
.hero-actions { display: flex; gap: 16px; justify-content: center; }

/* Buttons */
.btn {
    display: inline-block; padding: 12px 28px; border-radius: 8px;
    font-size: 0.95rem; font-weight: 500; text-decoration: none;
    cursor: pointer; transition: all 0.2s; border: none;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-light); transform: translateY(-1px); }
.btn-secondary { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }
.btn-lg { padding: 14px 36px; font-size: 1rem; }

/* Sections */
.section { padding: 100px 0; }
.section-dark { background: var(--bg-dark); }
.section h2 { font-size: 2rem; margin-bottom: 48px; text-align: center; }
.section-desc { text-align: center; color: var(--text-muted); max-width: 600px; margin: -32px auto 40px; }

/* Cards */
.cards-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-bottom: 48px; }
.card {
    background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 32px; transition: border-color 0.2s;
}
.card:hover { border-color: var(--accent); }
.card-icon {
    width: 48px; height: 48px; border-radius: 10px; display: flex; align-items: center;
    justify-content: center; font-weight: 700; font-size: 1.2rem; margin-bottom: 16px;
}
.card-pater .card-icon { background: rgba(231, 76, 60, 0.15); color: var(--pater); }
.card-filius .card-icon { background: rgba(52, 152, 219, 0.15); color: var(--filius); }
.card-spiritus .card-icon { background: rgba(46, 204, 113, 0.15); color: var(--spiritus); }
.card h3 { font-size: 1.1rem; margin-bottom: 8px; }
.card p { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 16px; }
.card code { font-family: 'JetBrains Mono', monospace; font-size: 0.8rem; color: var(--accent-light); background: rgba(124,92,252,0.08); padding: 4px 10px; border-radius: 4px; }

/* Feature grid */
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.feature { padding: 24px; border: 1px solid var(--border); border-radius: var(--radius); }
.feature h4 { color: var(--accent-light); margin-bottom: 8px; font-size: 0.95rem; }
.feature p { color: var(--text-muted); font-size: 0.85rem; }

/* Code tabs */
.code-tabs { max-width: 800px; margin: 0 auto; }
.tab-header { display: flex; gap: 4px; margin-bottom: -1px; position: relative; z-index: 1; }
.tab-btn {
    padding: 10px 24px; background: transparent; border: 1px solid var(--border);
    border-bottom: none; border-radius: 8px 8px 0 0; color: var(--text-muted);
    cursor: pointer; font-size: 0.9rem; font-family: inherit;
}
.tab-btn.active { background: var(--bg-card); color: var(--text); border-color: var(--border); }
.tab-content { display: none; }
.tab-content.active { display: block; }
.tab-content pre {
    background: var(--bg-card); border: 1px solid var(--border); border-radius: 0 var(--radius) var(--radius) var(--radius);
    padding: 28px; overflow-x: auto; font-size: 0.85rem; line-height: 1.7;
}
.tab-content code { font-family: 'JetBrains Mono', monospace; }
.comment { color: #6a6a8a; }
.kw { color: #c792ea; }
.fn { color: #82aaff; }
.str { color: #c3e88d; }
.num { color: #f78c6c; }
.tag { color: #89ddff; }
.attr { color: #ffcb6b; }
.var { color: #f07178; }

/* API Reference */
.api-section { margin-bottom: 48px; }
.api-section h3 { text-align: left; font-size: 1.3rem; margin-bottom: 20px; color: var(--accent-light); }
.api-method {
    background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 24px; margin-bottom: 16px;
}
.method-sig {
    font-family: 'JetBrains Mono', monospace; font-size: 0.95rem;
    color: var(--accent-light); display: block; margin-bottom: 12px;
}
.api-method p { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 12px; }
.param-table { width: 100%; font-size: 0.85rem; border-collapse: collapse; }
.param-table td { padding: 8px 12px; border-top: 1px solid var(--border); }
.param-table td:first-child { font-family: 'JetBrains Mono', monospace; color: var(--accent); white-space: nowrap; }
.param-table td:nth-child(2) { color: var(--text-muted); white-space: nowrap; width: 80px; }
.param-table code { font-family: 'JetBrains Mono', monospace; font-size: 0.8rem; background: rgba(124,92,252,0.08); padding: 1px 6px; border-radius: 3px; }

/* Species */
.species-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 12px; }
.species {
    padding: 14px 20px; background: var(--bg-card); border: 1px solid var(--border);
    border-radius: 8px; font-size: 0.9rem;
}
.species strong { color: var(--accent); font-family: 'JetBrains Mono', monospace; margin-right: 8px; }

/* Download */
.download-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.download-card {
    background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 32px; text-align: center;
}
.download-card h3 { font-family: 'JetBrains Mono', monospace; margin-bottom: 12px; }
.download-card p { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 20px; }
.file-info { display: block; margin-top: 12px; color: var(--text-muted); font-size: 0.8rem; }
.cdn-code {
    display: block; font-family: 'JetBrains Mono', monospace; font-size: 0.75rem;
    background: var(--bg); padding: 12px; border-radius: 6px; color: var(--accent-light);
    word-break: break-all;
}

/* Key Form */
.key-form { max-width: 700px; margin: 0 auto; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 20px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 0.9rem; font-weight: 500; }
.form-group small { color: var(--text-muted); font-size: 0.8rem; }
.form-group input, .form-group select {
    padding: 12px 16px; background: var(--bg-card); border: 1px solid var(--border);
    border-radius: 8px; color: var(--text); font-size: 0.9rem; font-family: inherit;
    outline: none; transition: border-color 0.2s;
}
.form-group input:focus, .form-group select:focus { border-color: var(--accent); }
.form-group input::placeholder { color: var(--text-muted); }
.form-group select option { background: var(--bg-card); }

.checkbox-grid { display: flex; flex-wrap: wrap; gap: 12px; }
.checkbox { display: flex; align-items: center; gap: 6px; font-size: 0.9rem; cursor: pointer; color: var(--text-muted); }
.checkbox input[type="checkbox"] { accent-color: var(--accent); }
.form-group:last-of-type { margin-bottom: 28px; }

/* Key Result */
.key-result { max-width: 700px; margin: 40px auto 0; }
.key-success { background: var(--bg-card); border: 1px solid var(--spiritus); border-radius: var(--radius); padding: 32px; }
.key-success h3 { color: var(--spiritus); margin-bottom: 16px; }
.key-display {
    display: flex; align-items: center; gap: 12px; background: var(--bg);
    padding: 16px; border-radius: 8px; margin-bottom: 16px;
}
.key-display code { flex: 1; font-family: 'JetBrains Mono', monospace; font-size: 0.85rem; word-break: break-all; color: var(--accent-light); }
.btn-copy {
    padding: 8px 16px; background: var(--accent); color: #fff; border: none;
    border-radius: 6px; cursor: pointer; font-size: 0.85rem;
}
.key-warning { color: var(--text-muted); font-size: 0.85rem; padding: 12px; background: rgba(231,76,60,0.08); border-radius: 6px; }

.hidden { display: none; }

/* Footer */
.footer { padding: 40px 0; border-top: 1px solid var(--border); }
.footer-content { display: flex; justify-content: space-between; align-items: center; }
.footer-brand { color: var(--text-muted); font-size: 0.9rem; }
.footer-links { display: flex; gap: 12px; color: var(--text-muted); font-size: 0.85rem; }
.footer-links a { color: var(--accent-light); text-decoration: none; }

/* Responsive */
@media (max-width: 768px) {
    .nav-links { display: none; }
    .hero h1 { font-size: 2.2rem; }
    .cards-grid, .download-grid { grid-template-columns: 1fr; }
    .feature-grid { grid-template-columns: 1fr 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .footer-content { flex-direction: column; gap: 12px; text-align: center; }
}