/* Transport Data Live - Smart Mobility Intelligence Platform */
:root {
    --primary-color: #2563eb;
    --secondary-color: #1d4ed8;
    --accent-color: #0ea5e9;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --dark-bg: #0f172a;
    --card-bg: #1e293b;
    --surface-bg: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --aptos-green: #00d4aa;
    --gradient-primary: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    --gradient-accent: linear-gradient(135deg, #0ea5e9 0%, #2563eb 100%);
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.15);
    --shadow-xl: 0 20px 25px rgba(0,0,0,0.25);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Top Banner */
.top-banner {
    background: var(--gradient-primary);
    padding: 1.5rem 0;
    border-bottom: 3px solid var(--accent-color);
}

.banner-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 2rem;
}

.brand-section {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.brand-icon {
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
}

.brand-info h1 {
    font-size: 2rem;
    font-weight: 800;
    color: white;
    margin-bottom: 0.25rem;
}

.brand-tagline {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 500;
}

.transport-stats {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 1.8rem;
    font-weight: 800;
    color: white;
    font-family: 'JetBrains Mono', monospace;
}

.stat-label {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.7);
    font-weight: 500;
}

.stat-divider {
    width: 2px;
    height: 40px;
    background: rgba(255, 255, 255, 0.3);
}

.aptos-verification {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--aptos-green);
    color: white;
    padding: 1rem 1.5rem;
    border-radius: 25px;
    font-weight: 600;
    box-shadow: var(--shadow-md);
}

/* Hero Section */
.hero {
    padding: 4rem 0;
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--card-bg) 100%);
}

.hero-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content {
    max-width: 600px;
}

.hero-title {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 2rem;
    color: var(--text-primary);
}

.highlight {
    color: var(--accent-color);
}

.hero-description {
    font-size: 1.25rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.transport-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.city-map {
    position: relative;
    width: 400px;
    height: 300px;
    background: var(--card-bg);
    border-radius: 20px;
    border: 1px solid rgba(37, 99, 235, 0.3);
    overflow: hidden;
}

.route-line {
    position: absolute;
    height: 3px;
    background: var(--gradient-accent);
    border-radius: 2px;
    animation: routeFlow 3s ease-in-out infinite;
}

.route-1 {
    top: 30%;
    left: 10%;
    width: 80%;
    animation-delay: 0s;
}

.route-2 {
    top: 50%;
    left: 20%;
    width: 60%;
    animation-delay: 1s;
}

.route-3 {
    top: 70%;
    left: 15%;
    width: 70%;
    animation-delay: 2s;
}

@keyframes routeFlow {
    0%, 100% { opacity: 0.3; transform: scaleX(1); }
    50% { opacity: 1; transform: scaleX(1.1); }
}

.transport-node {
    position: absolute;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    animation: nodeFloat 2s ease-in-out infinite;
    box-shadow: var(--shadow-md);
}

@keyframes nodeFloat {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

/* Transport Features */
.transport-features {
    padding: 4rem 0;
    background: var(--surface-bg);
}

.features-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.feature-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.feature-item {
    display: flex;
    gap: 1.5rem;
    padding: 2rem;
    background: var(--card-bg);
    border-radius: 16px;
    border: 1px solid rgba(37, 99, 235, 0.2);
    transition: all 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-3px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.feature-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.feature-content p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Chat Strip Section */
.chat-strip-section {
    padding: 4rem 0;
    background: var(--dark-bg);
}

.chat-strip-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.chat-intro {
    text-align: center;
    margin-bottom: 3rem;
}

.chat-intro h3 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.chat-intro p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.long-input-strip {
    background: var(--card-bg);
    border-radius: 20px;
    border: 1px solid rgba(37, 99, 235, 0.3);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.input-strip-header {
    background: var(--gradient-primary);
    padding: 1.5rem 2rem;
    color: white;
}

.ai-indicator {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.ai-avatar {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.ai-name {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    opacity: 0.9;
}

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

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.input-strip-body {
    padding: 2rem;
    background: var(--dark-bg);
}

.welcome-message {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--card-bg);
    border-radius: 15px;
    border: 1px solid rgba(37, 99, 235, 0.2);
}

.message-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.3rem;
    flex-shrink: 0;
}

.message-text p {
    margin-bottom: 1rem;
    line-height: 1.6;
    color: var(--text-primary);
}

.message-text p:last-child {
    margin-bottom: 0;
}

.input-area {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.quick-transport-queries {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
}

.transport-query-btn {
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary-color);
    border: 1px solid rgba(37, 99, 235, 0.3);
    padding: 0.75rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.transport-query-btn:hover {
    background: var(--primary-color);
    color: white;
}

.long-input-container {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.long-chat-input {
    flex: 1;
    padding: 1.25rem 1.5rem;
    background: var(--card-bg);
    border: 2px solid rgba(37, 99, 235, 0.3);
    border-radius: 50px;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
}

.long-chat-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

.input-send-btn {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border: none;
    border-radius: 50%;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.input-send-btn:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

.input-footer {
    text-align: center;
}

.aptos-verification-strip {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.aptos-verification-strip i {
    color: var(--aptos-green);
}

/* Footer */
.footer {
    background: var(--card-bg);
    border-top: 1px solid rgba(37, 99, 235, 0.2);
    padding: 3rem 0 1rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-brand {
    max-width: 400px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.footer-logo i {
    font-size: 2rem;
    color: var(--primary-color);
}

.footer-logo span {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.footer-brand p {
    color: var(--text-secondary);
    line-height: 1.7;
}

.footer-column h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.footer-column ul {
    list-style: none;
}

.footer-column ul li {
    margin-bottom: 0.75rem;
}

.footer-column ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-column ul li a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    border-top: 1px solid rgba(37, 99, 235, 0.2);
    padding-top: 2rem;
}

.footer-bottom-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-bottom p {
    color: var(--text-muted);
    margin: 0;
}

.footer-aptos {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--aptos-green);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .feature-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .banner-container {
        flex-direction: column;
        text-align: center;
        gap: 1.5rem;
    }
    
    .transport-stats {
        flex-direction: column;
        gap: 1rem;
    }
    
    .stat-divider {
        width: 40px;
        height: 2px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .city-map {
        width: 300px;
        height: 200px;
    }
    
    .quick-transport-queries {
        flex-direction: column;
    }
    
    .long-input-container {
        flex-direction: column;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-bottom-content {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .input-strip-body {
        padding: 1rem;
    }
    
    .welcome-message {
        flex-direction: column;
        text-align: center;
    }
}