/* 🎯 AI Interviewer Pro - Futuristic Dark Theme */

:root {
    /* Primary Colors - Neon/Electric Blue */
    --primary-blue: #00AEEF;
    --primary-blue-light: #00CFFF;
    --primary-gradient: linear-gradient(135deg, #00AEEF 0%, #00CFFF 100%);
    
    /* Background - Dark Gray to Near Black */
    --bg-primary: #0B0C10;
    --bg-secondary: #1C1F26;
    --bg-card: #1A1D23;
    --bg-hover: #252831;
    
    /* Accent - Cyan Glow */
    --accent-cyan: #00FFFF;
    --cyan-glow: 0 0 20px rgba(0, 255, 255, 0.3);
    --cyan-glow-strong: 0 0 30px rgba(0, 255, 255, 0.6);
    
    /* Text Colors */
    --text-primary: #FFFFFF;
    --text-secondary: #A0A0A0;
    --text-muted: #6B7280;
    
    /* Status Colors */
    --success: #10B981;
    --warning: #F59E0B;
    --error: #EF4444;
    
    /* Shadows and Effects */
    --shadow-dark: 0 10px 25px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(0, 174, 239, 0.2);
    --border-glow: 1px solid rgba(0, 255, 255, 0.3);
}

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

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

/* Scrolling Marquee */
.marquee-container {
    background: var(--primary-gradient);
    color: var(--text-primary);
    padding: 0.5rem 0;
    overflow: hidden;
    white-space: nowrap;
    position: relative;
    box-shadow: var(--cyan-glow);
}

.marquee-text {
    display: inline-block;
    animation: scroll-left 25s linear infinite;
    font-weight: 500;
    font-size: 0.9rem;
}

@keyframes scroll-left {
    0% { transform: translateX(100%); }
    100% { transform: translateX(-100%); }
}

/* Header */
.header {
    background: rgba(26, 29, 35, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: var(--border-glow);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-dark);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--text-primary);
    text-decoration: none;
    transition: all 0.3s ease;
}

.logo:hover {
    text-shadow: var(--cyan-glow);
}

.logo-icon {
    width: 50px;
    height: 50px;
    background: var(--primary-gradient);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    box-shadow: var(--shadow-glow);
    border: 1px solid var(--accent-cyan);
}

.header-nav {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.portal-badge {
    background: var(--primary-gradient);
    color: var(--text-primary);
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border: 1px solid var(--accent-cyan);
    box-shadow: var(--cyan-glow);
}

.status {
    background: rgba(0, 255, 255, 0.1);
    color: var(--accent-cyan);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    border: 1px solid var(--accent-cyan);
}

/* Main Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Hero Section - Full Screen */
.hero {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    position: relative;
    background: radial-gradient(ellipse at center, rgba(0, 174, 239, 0.1) 0%, transparent 70%);
    padding-top: 4rem; /* Added gap between navbar and title */
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(0,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
    z-index: -1;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 900;
    margin-bottom: 1rem;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: var(--cyan-glow);
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-weight: 300;
}

.hero-tagline {
    font-size: 1.25rem;
    color: var(--accent-cyan);
    margin-bottom: 3rem;
    font-weight: 500;
    text-shadow: var(--cyan-glow);
}

.hero-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    width: 100%;
    max-width: 1000px;
    margin-bottom: 3rem;
}

.feature-card {
    background: var(--bg-card);
    border: var(--border-glow);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 255, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

.feature-card:hover::before {
    left: 100%;
}

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

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--primary-blue-light);
    text-shadow: var(--cyan-glow);
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.feature-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Portal Selection */
.portal-selection {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    width: 100%;
    max-width: 1200px;
}

.portal-card {
    background: var(--bg-card);
    border: var(--border-glow);
    border-radius: 20px;
    padding: 3rem 2rem;
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.portal-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--primary-gradient);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -1;
}

.portal-card:hover:not(.disabled)::before {
    opacity: 0.1;
}

.portal-card:hover:not(.disabled) {
    transform: translateY(-10px);
    box-shadow: var(--cyan-glow-strong);
    border-color: var(--accent-cyan);
}

.portal-card.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.portal-icon {
    width: 80px;
    height: 80px;
    background: var(--primary-gradient);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: white;
    margin: 0 auto 2rem;
    box-shadow: var(--shadow-glow);
    border: 1px solid var(--accent-cyan);
}

.portal-card.disabled .portal-icon {
    background: var(--bg-hover);
    border-color: var(--text-muted);
}

.portal-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
    text-align: center;
}

.portal-desc {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 2rem;
    text-align: center;
}

.portal-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
    margin-bottom: 2rem;
}

.feature-tag {
    background: var(--primary-gradient);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    border: 1px solid var(--accent-cyan);
}

.feature-tag.disabled {
    background: var(--bg-hover);
    color: var(--text-muted);
    border-color: var(--text-muted);
}

.portal-button {
    background: var(--primary-gradient);
    color: var(--text-primary);
    padding: 1rem 2rem;
    border-radius: 12px;
    font-weight: 600;
    text-align: center;
    border: 1px solid var(--accent-cyan);
    box-shadow: var(--shadow-glow);
    transition: all 0.3s ease;
}

.portal-button:hover {
    box-shadow: var(--cyan-glow-strong);
}

.portal-button.disabled {
    background: var(--bg-hover);
    color: var(--text-muted);
    border-color: var(--text-muted);
    box-shadow: none;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--primary-gradient);
    color: var(--text-primary);
    border: 1px solid var(--accent-cyan);
    box-shadow: var(--shadow-glow);
}

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

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-secondary);
    border: var(--border-glow);
}

.btn-secondary:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

/* Footer */
.footer {
    background: var(--bg-secondary);
    border-top: var(--border-glow);
    padding: 2rem 0;
    text-align: center;
    margin-top: auto;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

.footer-brand {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.footer-tech {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
        height: auto;
        min-height: 100vh;
    }
    
    .hero {
        padding: 2rem 0;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero-features {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .portal-selection {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .header-nav {
        flex-direction: column;
        gap: 0.75rem;
    }
}

/* Utilities */
.hidden { display: none !important; }
.text-center { text-align: center; }
.text-glow { text-shadow: var(--cyan-glow); }

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-gradient);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-cyan);
}