/* Optimus Track - Design System Futuriste */
:root {
    --bg-primary: #0d0d14;
    --bg-secondary: #14141f;
    --bg-tertiary: #1c1c2a;
    --bg-card: rgba(22, 22, 32, 0.9);
    --bg-glass: rgba(255, 255, 255, 0.05);
    
    --border: rgba(255, 255, 255, 0.1);
    --border-light: rgba(255, 255, 255, 0.18);
    
    --primary: #00d4ff;
    --primary-dim: rgba(0, 212, 255, 0.15);
    --secondary: #7c3aed;
    --secondary-dim: rgba(124, 58, 237, 0.15);
    --accent: #10b981;
    --accent-dim: rgba(16, 185, 129, 0.15);
    --warning: #f59e0b;
    --warning-dim: rgba(245, 158, 11, 0.15);
    --danger: #ef4444;
    --danger-dim: rgba(239, 68, 68, 0.15);
    
    --text: #e4e4e7;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    
    --gradient: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    --glow: 0 0 40px rgba(0, 212, 255, 0.15);
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

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

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Background Effects */
.bg-grid {
    position: fixed;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: 0;
}

.bg-glow {
    position: fixed;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.08) 0%, transparent 70%);
    top: -200px;
    right: -200px;
    pointer-events: none;
    z-index: 0;
}

.bg-glow.glow-purple {
    background: radial-gradient(circle, rgba(124, 58, 237, 0.12) 0%, transparent 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* Glass Effect */
.glass {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border);
}

/* Typography */
h1, h2, h3, h4, h5, h6 { font-weight: 700; letter-spacing: -0.02em; }
.gradient-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 3rem;
    border-bottom: 1px solid var(--border);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 800;
}

.logo-icon {
    font-size: 1.75rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--text);
}

.status-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--accent-dim);
    border: 1px solid var(--accent);
    border-radius: 100px;
    color: var(--accent) !important;
    font-size: 0.85rem;
}

.pulse {
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.btn-primary {
    background: var(--gradient);
    color: white !important;
    padding: 0.6rem 1.5rem;
    border-radius: 100px;
    font-weight: 600;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--glow);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 8rem 2rem 4rem;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    background: var(--primary-dim);
    border: 1px solid var(--primary);
    border-radius: 100px;
    font-size: 0.85rem;
    color: var(--primary);
    margin-bottom: 2rem;
}

.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4rem);
    line-height: 1.15;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin-bottom: 3rem;
}

/* Terminal Window */
.terminal-window {
    width: 100%;
    max-width: 650px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--glow), 0 25px 50px rgba(0,0,0,0.5);
    text-align: left;
}

.terminal-header {
    display: flex;
    align-items: center;
    padding: 0.875rem 1rem;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border);
}

.terminal-dots {
    display: flex;
    gap: 0.5rem;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}
.dot.red { background: #ff5f56; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #27ca40; }

.terminal-title {
    margin-left: auto;
    font-size: 0.8rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.terminal-body {
    padding: 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

.terminal-line {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.terminal-line.output {
    padding-left: 1rem;
}

.terminal-line.muted {
    color: var(--text-muted);
    font-size: 0.8rem;
}

.prompt { color: var(--accent); font-weight: 600; }
.command { color: var(--text); }
.success-icon { color: var(--accent); }
.success-text { color: var(--accent); }
.label { color: var(--text-muted); }
.url { color: var(--primary); font-weight: 500; }

.copy-btn {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 0.25rem 0.5rem;
    cursor: pointer;
    opacity: 0.6;
    transition: opacity 0.2s;
}
.copy-btn:hover { opacity: 1; }

.hero-stats {
    display: flex;
    gap: 4rem;
    margin-top: 3rem;
}

.stat {
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Sections */
.section {
    padding: 6rem 3rem;
    position: relative;
    z-index: 1;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
}

.section-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
    box-shadow: var(--glow);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

.feature-list {
    list-style: none;
}

.feature-list li {
    padding: 0.25rem 0;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.feature-list li::before {
    content: "✓ ";
    color: var(--accent);
}

/* Examples Grid */
.examples-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.example-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
}

.example-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.example-icon { font-size: 1.5rem; }
.example-title { font-weight: 600; }

.example-code {
    display: block;
    background: var(--bg-primary);
    padding: 1rem;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--primary);
    overflow-x: auto;
    margin-bottom: 0.75rem;
}

.example-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Limits Container */
.limits-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 1rem;
    max-width: 900px;
    margin: 0 auto;
}

.limit-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    text-align: center;
}

.limit-icon { font-size: 1.75rem; margin-bottom: 0.5rem; }
.limit-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    display: block;
}
.limit-label {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Footer */
.footer {
    border-top: 1px solid var(--border);
    padding: 3rem;
    position: relative;
    z-index: 1;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
}

.footer-links a:hover { color: var(--text); }

.footer-copy {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Login Page */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 2rem;
}

.login-container {
    width: 100%;
    max-width: 420px;
    position: relative;
    z-index: 1;
}

.login-card {
    border-radius: var(--radius-xl);
    padding: 2.5rem;
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-logo {
    font-size: 3.5rem;
    margin-bottom: 1rem;
}

.login-header h1 {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
}

.login-header p {
    color: var(--text-muted);
}

.error-message {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1rem;
    background: var(--danger-dim);
    border: 1px solid var(--danger);
    border-radius: var(--radius-md);
    color: var(--danger);
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: 1rem;
    font-size: 1.1rem;
}

.input-wrapper input {
    width: 100%;
    padding: 0.875rem 1rem 0.875rem 3rem;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text);
    font-size: 1rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.input-wrapper input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-dim);
}

.input-wrapper input::placeholder {
    color: var(--text-muted);
}

.btn-submit {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    padding: 1rem;
    background: var(--gradient);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: var(--glow);
}

.btn-arrow {
    transition: transform 0.2s;
}

.btn-submit:hover .btn-arrow {
    transform: translateX(4px);
}

.back-link {
    display: block;
    text-align: center;
    margin-top: 1.5rem;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s;
}

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

/* Responsive - Landing Page */
@media (max-width: 1200px) {
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .hero h1 { font-size: 3rem; }
}

@media (max-width: 768px) {
    .navbar { padding: 1rem 1.5rem; }
    .nav-links { gap: 1rem; }
    .nav-links a:not(.btn-primary):not(.status-badge) { display: none; }
    .hero { padding: 6rem 1.5rem 3rem; }
    .hero h1 { font-size: 2.25rem; }
    .hero p { font-size: 1rem; }
    .hero-stats { gap: 2rem; flex-wrap: wrap; justify-content: center; }
    .hero-stat { min-width: 100px; }
    .section { padding: 4rem 1.5rem; }
    .features-grid { grid-template-columns: 1fr; gap: 1rem; }
    .section h2 { font-size: 2rem; }
    .code-demo { padding: 1rem; font-size: 0.8rem; overflow-x: auto; }
}

@media (max-width: 480px) {
    .hero { padding: 5rem 1rem 2rem; }
    .hero h1 { font-size: 1.75rem; }
    .hero p { font-size: 0.9rem; }
    .navbar { padding: 0.75rem 1rem; }
    .logo { font-size: 1.1rem; }
    .btn-primary { padding: 0.6rem 1rem; font-size: 0.85rem; }
    .hero-stats { flex-direction: column; align-items: center; gap: 1rem; }
    .section { padding: 3rem 1rem; }
    .section h2 { font-size: 1.5rem; }
    .feature-card { padding: 1.25rem; }
}