static/assets/css/premium.css

/* Premium AI Platform - Luxury Design System */

:root {
    /* Premium Color Palette */
    --color-primary: #6366f1;
    --color-primary-dark: #4f46e5;
    --color-secondary: #8b5cf6;
    --color-accent: #06b6d4;
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-danger: #ef4444;
    
    /* Dark Theme */
    --color-bg-primary: #0a0a0f;
    --color-bg-secondary: #13131a;
    --color-bg-tertiary: #1a1a24;
    --color-surface: rgba(255, 255, 255, 0.03);
    --color-surface-hover: rgba(255, 255, 255, 0.06);
    
    /* Text Colors */
    --color-text-primary: #ffffff;
    --color-text-secondary: #a1a1aa;
    --color-text-tertiary: #71717a;
    
    /* Glass Effect */
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-xl: 2rem;
    
    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

h1, h2, h3, h4, h5, h6 {
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    line-height: 1.2;
}

/* Premium Background */
.premium-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    overflow: hidden;
}

.gradient-mesh {
    position: absolute;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(139, 92, 246, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(6, 182, 212, 0.1) 0%, transparent 50%);
    animation: meshMove 20s ease-in-out infinite;
}

@keyframes meshMove {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(50px, 30px) scale(1.1); }
}

.neural-network {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0.3;
}

#neuralCanvas {
    width: 100%;
    height: 100%;
}

/* Navigation */
.premium-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.brand-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.3);
}

.brand-text {
    font-size: 24px;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.brand-pro {
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-left: 4px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: all var(--transition-base);
    font-weight: 500;
}

.nav-link:hover {
    color: var(--color-text-primary);
    background: var(--color-surface-hover);
}

.nav-link.active {
    color: var(--color-primary);
    background: rgba(99, 102, 241, 0.1);
}

.nav-user {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--glass-border);
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    display: flex;
    align-items: center;
    justify-content: center;
}

.user-info {
    display: flex;
    flex-direction: column;
}

.user-name {
    font-size: 14px;
    font-weight: 600;
}

.user-role {
    font-size: 12px;
    color: var(--color-text-tertiary);
}

.logout-btn {
    padding: var(--spacing-xs);
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
    cursor: pointer;
    text-decoration: none;
}

.logout-btn:hover {
    color: var(--color-danger);
}

/* Main Content */
.premium-main {
    position: relative;
    z-index: 1;
    padding-top: 100px;
    max-width: 1400px;
    margin: 0 auto;
    padding-left: var(--spacing-lg);
    padding-right: var(--spacing-lg);
}

/* Hero Section */
.hero-section {
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.hero-content {
    max-width: 900px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    font-size: 14px;
    font-weight: 500;
    margin-bottom: var(--spacing-lg);
    backdrop-filter: blur(10px);
}

.hero-badge i {
    color: var(--color-accent);
}

.hero-title {
    font-size: clamp(48px, 8vw, 72px);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    letter-spacing: -2px;
}

.gradient-text {
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-bottom: var(--spacing-xl);
}

/* Buttons */
.btn-primary, .btn-secondary {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 16px 32px;
    border-radius: var(--radius-lg);
    font-size: 16px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: white;
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(99, 102, 241, 0.5);
}

.btn-glow {
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

.btn-primary:hover .btn-glow {
    left: 100%;
}

.btn-secondary {
    background: var(--color-surface);
    color: var(--color-text-primary);
    border: 1px solid var(--glass-border);
}

.btn-secondary:hover {
    background: var(--color-surface-hover);
    border-color: var(--color-primary);
}

/* Hero Stats */
.hero-stats {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(10px);
    max-width: 600px;
    margin: 0 auto;
}

.stat-item {
    text-align: center;
}

.stat-value {
    font-size: 32px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 14px;
    color: var(--color-text-tertiary);
    margin-top: 4px;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--glass-border);
}

/* Glass Card */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--glass-shadow);
    transition: all var(--transition-base);
}

.glass-card:hover {
    border-color: rgba(99, 102, 241, 0.3);
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.5);
}

.glass-card.large {
    padding: var(--spacing-xl) var(--spacing-xl);
}

/* Upload Section */
.upload-section {
    margin: var(--spacing-xl) 0;
}

.card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.header-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.3);
}

.card-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 4px;
}

.card-subtitle {
    font-size: 16px;
    color: var(--color-text-secondary);
}

.upload-area {
    border: 2px dashed var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-base);
}

.upload-area:hover {
    border-color: var(--color-primary);
    background: rgba(99, 102, 241, 0.05);
}

.upload-icon {
    font-size: 64px;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.upload-title {
    font-size: 24px;
    margin-bottom: var(--spacing-sm);
}

.upload-text {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

.upload-formats {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
}

.format-badge {
    padding: 6px 16px;
    background: var(--color-surface);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 600;
    color: var(--color-primary);
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.loading-overlay.hidden {
    display: none;
}

.loading-content {
    text-align: center;
}

.loading-spinner {
    width: 80px;
    height: 80px;
    border: 4px solid var(--color-surface);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-md);
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-text {
    font-size: 18px;
    color: var(--color-text-secondary);
}

/* Interview Section */
.interview-section {
    margin: var(--spacing-xl) 0;
}

.interview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
}

.progress-indicator {
    position: relative;
}

.progress-circle {
    position: relative;
    width: 100px;
    height: 100px;
}

.progress-circle svg {
    transform: rotate(-90deg);
}

.progress-circle circle {
    fill: none;
    stroke: var(--color-surface);
    stroke-width: 8;
}

.progress-circle .progress-ring {
    stroke: var(--color-primary);
    stroke-linecap: round;
    transition: stroke-dashoffset 0.5s ease;
}

.progress-number {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 20px;
    font-weight: 700;
    color: var(--color-primary);
}

.timer {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    font-size: 18px;
    font-weight: 600;
}

.question-container {
    margin-bottom: var(--spacing-xl);
}

.question-tags {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.tag {
    padding: 6px 16px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    color: var(--color-primary);
}

.question-text {
    font-size: 24px;
    line-height: 1.6;
    color: var(--color-text-primary);
}

.answer-container {
    margin-bottom: var(--spacing-xl);
}

.answer-input {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--color-surface);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    color: var(--color-text-primary);
    font-size: 16px;
    font-family: inherit;
    resize: vertical;
    min-height: 200px;
    transition: all var(--transition-base);
}

.answer-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

.ai-warning {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: var(--radius-md);
    color: var(--color-danger);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.interview-actions {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-md);
}

/* Results Section */
.results-section {
    margin: var(--spacing-xl) 0;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
}

.section-title {
    font-size: 32px;
    font-weight: 700;
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-lg);
}

.score-display {
    text-align: center;
}

.score-circle {
    position: relative;
    width: 200px;
    height: 200px;
    margin: 0 auto var(--spacing-lg);
}

.score-circle svg {
    transform: rotate(-90deg);
}

.score-circle circle {
    fill: none;
    stroke: var(--color-surface);
    stroke-width: 12;
}

.score-circle .score-ring {
    stroke: url(#scoreGradient);
    stroke-linecap: round;
}

.score-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}

.score-value {
    display: block;
    font-size: 48px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.score-label {
    display: block;
    font-size: 16px;
    color: var(--color-text-secondary);
    margin-top: 4px;
}

.recommendation {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: var(--radius-lg);
    color: var(--color-success);
    font-weight: 600;
}

.score-breakdown {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.score-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.score-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.score-name {
    font-weight: 600;
    color: var(--color-text-secondary);
}

.score-percent {
    font-weight: 700;
    color: var(--color-primary);
}

.score-bar {
    height: 8px;
    background: var(--color-surface);
    border-radius: 10px;
    overflow: hidden;
}

.score-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    border-radius: 10px;
    transition: width 1s ease;
}

/* Utility Classes */
.hidden {
    display: none !important;
}

/* Responsive */
@media (max-width: 768px) {
    .premium-main {
        padding-left: var(--spacing-md);
        padding-right: var(--spacing-md);
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .stat-divider {
        width: 100%;
        height: 1px;
    }
    
    .nav-menu {
        gap: var(--spacing-sm);
    }
    
    .nav-link span {
        display: none;
    }
}

/* Exam Mode Styles */
body.exam-mode {
    overflow: hidden;
}

body.exam-mode .interview-section {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100vw;
    height: 100vh;
    z-index: 9999;
    background: var(--color-bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    margin: 0;
}

body.exam-mode .interview-section .glass-card {
    max-width: 900px;
    width: 100%;
    height: auto;
    max-height: 90vh;
    overflow-y: auto;
}

body.exam-mode .interview-section:not(.hidden) {
    display: flex !important;
}

/* Hide elements during exam */
body.exam-mode .premium-nav,
body.exam-mode .hero-section,
body.exam-mode .upload-section,
body.exam-mode .results-section {
    display: none !important;
}

/* Interview section full screen layout */
.interview-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
}

.interview-section.hidden {
    display: none;
}

.interview-section .glass-card {
    width: 100%;
    max-width: 900px;
}

.interview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--glass-border);
}

.progress-indicator {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.progress-circle {
    position: relative;
    width: 80px;
    height: 80px;
}

.progress-circle svg {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.progress-circle circle {
    fill: none;
    stroke-width: 8;
}

.progress-circle circle:first-child {
    stroke: var(--color-surface);
}

.progress-circle circle.progress-ring {
    stroke: var(--color-primary);
    stroke-linecap: round;
    transition: stroke-dashoffset 0.5s ease;
}

.progress-number {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 18px;
    font-weight: 700;
    color: var(--color-text-primary);
}

.timer {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    font-size: 24px;
    font-weight: 700;
    color: var(--color-primary);
}

.timer i {
    font-size: 20px;
}

.question-container {
    margin-bottom: var(--spacing-xl);
}

.question-tags {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.question-tags .tag {
    padding: 6px 16px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-primary);
}

.question-text {
    font-size: 24px;
    font-weight: 600;
    line-height: 1.6;
    color: var(--color-text-primary);
    margin: 0;
}

.answer-container {
    margin-bottom: var(--spacing-xl);
}

.answer-input {
    width: 100%;
    min-height: 200px;
    padding: var(--spacing-md);
    background: var(--color-surface);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    color: var(--color-text-primary);
    font-size: 16px;
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    resize: vertical;
    transition: all var(--transition-base);
}

.answer-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

.answer-input::placeholder {
    color: var(--color-text-tertiary);
}

.ai-warning {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: var(--radius-md);
    color: var(--color-danger);
    font-size: 14px;
    font-weight: 500;
    margin-top: var(--spacing-sm);
}

.ai-warning.hidden {
    display: none;
}

.interview-actions {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-md);
}

.interview-actions button {
    flex: 1;
}

/* Exam mode - center interview card */
body.exam-mode .interview-section .glass-card {
    animation: slideInUp 0.5s ease;
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Results section styles */
.results-section {
    padding: var(--spacing-xl);
    min-height: 100vh;
}

.results-section.hidden {
    display: none;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
}

.section-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--color-text-primary);
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-lg);
}

.score-display {
    text-align: center;
    padding: var(--spacing-lg);
}

.score-circle {
    position: relative;
    width: 200px;
    height: 200px;
    margin: 0 auto var(--spacing-lg);
}

.score-circle svg {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.score-circle circle {
    fill: none;
    stroke-width: 12;
}

.score-circle circle:first-child {
    stroke: var(--color-surface);
}

.score-circle circle.score-ring {
    stroke: var(--color-primary);
    stroke-linecap: round;
}

.score-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}

.score-value {
    display: block;
    font-size: 48px;
    font-weight: 800;
    color: var(--color-text-primary);
}

.score-label {
    display: block;
    font-size: 16px;
    color: var(--color-text-secondary);
    margin-top: var(--spacing-xs);
}

.recommendation {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: var(--radius-lg);
    color: var(--color-success);
    font-weight: 600;
}

.score-breakdown {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.score-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.score-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.score-name {
    font-weight: 600;
    color: var(--color-text-primary);
}

.score-percent {
    font-weight: 700;
    color: var(--color-primary);
}

.score-bar {
    height: 8px;
    background: var(--color-surface);
    border-radius: 4px;
    overflow: hidden;
}

.score-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    border-radius: 4px;
    transition: width 1s ease;
}

/* Coding Challenge Styles */
.coding-challenge-notice {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: var(--radius-md);
    color: var(--color-primary);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.coding-challenge-notice i {
    font-size: 20px;
}

.coding-language-selector {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-surface);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.coding-language-selector label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 600;
    color: var(--color-text-secondary);
    margin: 0;
}

.language-dropdown {
    padding: 10px 16px;
    background: var(--color-bg-secondary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
    min-width: 200px;
}

.language-dropdown:hover {
    border-color: var(--color-primary);
}

.language-dropdown:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

#codingEditor {
    background: var(--color-surface);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    min-height: 700px;
    font-size: 16px;
}

/* Ensure iframe content is properly sized */
#codingEditor iframe {
    width: 100%;
    height: 100%;
}

/* Make interview card bigger for coding questions */
body.exam-mode .interview-section .glass-card.coding-active {
    max-width: 1200px;
    max-height: 98vh;
}

/* Exam Mode - Hide UI Elements */
body.exam-mode .premium-nav,
body.exam-mode .hero-section,
body.exam-mode .upload-section,
body.exam-mode .results-section {
    display: none !important;
}

body.exam-mode {
    overflow: hidden;
}

body.exam-mode .interview-section {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100vw;
    height: 100vh;
    z-index: 9999;
    background: var(--color-bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    margin: 0;
    overflow-y: auto;
}

body.exam-mode .interview-section .glass-card {
    max-width: 1000px;
    width: 100%;
    height: auto;
    max-height: 95vh;
    overflow-y: auto;
}

body.exam-mode .interview-section:not(.hidden) {
    display: flex !important;
}

/* Fullscreen coding editor for coding questions */
body.exam-mode .interview-section.coding-mode {
    padding: 0 !important;
    align-items: stretch !important;
}

body.exam-mode .interview-section.coding-mode .glass-card {
    max-width: 100vw !important;
    width: 100vw !important;
    max-height: 100vh !important;
    height: 100vh !important;
    margin: 0 !important;
    padding: 1.5rem !important;
    border-radius: 0 !important;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

body.exam-mode .interview-section.coding-mode .interview-header {
    flex-shrink: 0;
}

body.exam-mode .interview-section.coding-mode .question-container {
    flex-shrink: 0;
}

body.exam-mode .interview-section.coding-mode .answer-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
    overflow: hidden;
}

body.exam-mode .interview-section.coding-mode #codingEditor {
    flex: 1;
    min-height: 0 !important;
    height: 100% !important;
}

body.exam-mode .interview-section.coding-mode .interview-actions {
    flex-shrink: 0;
    margin-top: 1rem;
}


/* ============================================
   RESPONSIVE DESIGN - Mobile, Tablet, iPad, Laptop
   ============================================ */

/* Extra Large Screens (1400px+) */
@media (min-width: 1400px) {
    .premium-main {
        max-width: 1400px;
    }
    .hero-title {
        font-size: 72px;
    }
}

/* Large Screens / Laptops (1024px - 1399px) */
@media (max-width: 1399px) {
    .premium-main {
        max-width: 1200px;
    }
    .hero-title {
        font-size: 56px;
    }
    .results-grid {
        grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    }
}

/* Tablets / iPad (768px - 1023px) */
@media (max-width: 1023px) {
    :root {
        --spacing-xl: 2rem;
        --spacing-lg: 1.5rem;
    }
    
    .premium-main {
        padding-top: 80px;
        padding-left: var(--spacing-md);
        padding-right: var(--spacing-md);
    }
    
    .nav-container {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .brand-icon {
        width: 40px;
        height: 40px;
        font-size: 20px;
    }
    
    .brand-text {
        font-size: 20px;
    }
    
    .nav-link {
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .hero-title {
        font-size: 42px;
        letter-spacing: -1px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    .hero-stats {
        flex-wrap: wrap;
        gap: var(--spacing-md);
    }
    
    .stat-divider {
        display: none;
    }
    
    .stat-value {
        font-size: 28px;
    }
    
    .glass-card {
        padding: var(--spacing-lg);
    }
    
    .glass-card.large {
        padding: var(--spacing-lg);
    }
    
    .card-title {
        font-size: 24px;
    }
    
    .header-icon {
        width: 56px;
        height: 56px;
        font-size: 24px;
    }
    
    .upload-icon {
        font-size: 48px;
    }
    
    .upload-title {
        font-size: 20px;
    }
    
    .results-grid {
        grid-template-columns: 1fr;
    }
    
    .score-circle {
        width: 160px;
        height: 160px;
    }
    
    .score-value {
        font-size: 40px;
    }
    
    .question-text {
        font-size: 20px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .results-header {
        flex-direction: column;
        gap: var(--spacing-md);
        align-items: flex-start;
    }
    
    .results-header > div {
        width: 100%;
        justify-content: center;
    }
}

/* Small Tablets / Large Phones (600px - 767px) */
@media (max-width: 767px) {
    :root {
        --spacing-xl: 1.5rem;
        --spacing-lg: 1rem;
        --spacing-md: 0.75rem;
    }
    
    .premium-main {
        padding-top: 70px;
        padding-left: var(--spacing-sm);
        padding-right: var(--spacing-sm);
    }
    
    .nav-container {
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .nav-menu {
        gap: var(--spacing-xs);
    }
    
    .nav-link {
        padding: var(--spacing-xs);
    }
    
    .nav-link span {
        display: none;
    }
    
    .nav-user {
        padding: var(--spacing-xs);
    }
    
    .user-info {
        display: none;
    }
    
    .user-avatar {
        width: 36px;
        height: 36px;
    }
    
    .brand-icon {
        width: 36px;
        height: 36px;
        font-size: 18px;
    }
    
    .brand-text {
        font-size: 18px;
    }
    
    .hero-section {
        min-height: auto;
        padding: var(--spacing-lg) 0;
    }
    
    .hero-title {
        font-size: 32px;
        letter-spacing: -0.5px;
    }
    
    .hero-subtitle {
        font-size: 16px;
        margin-bottom: var(--spacing-lg);
    }
    
    .hero-badge {
        font-size: 12px;
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .hero-actions {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .btn-primary, .btn-secondary {
        width: 100%;
        justify-content: center;
        padding: 14px 24px;
        font-size: 15px;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-sm);
        padding: var(--spacing-md);
    }
    
    .stat-item {
        width: 100%;
        padding: var(--spacing-sm) 0;
        border-bottom: 1px solid var(--glass-border);
    }
    
    .stat-item:last-child {
        border-bottom: none;
    }
    
    .stat-value {
        font-size: 24px;
    }
    
    .stat-label {
        font-size: 12px;
    }
    
    .glass-card {
        padding: var(--spacing-md);
        border-radius: var(--radius-lg);
    }
    
    .card-header {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-sm);
    }
    
    .header-icon {
        width: 48px;
        height: 48px;
        font-size: 20px;
    }
    
    .card-title {
        font-size: 20px;
    }
    
    .card-subtitle {
        font-size: 14px;
    }
    
    .upload-area {
        padding: var(--spacing-lg);
    }
    
    .upload-icon {
        font-size: 40px;
    }
    
    .upload-title {
        font-size: 18px;
    }
    
    .upload-text {
        font-size: 14px;
    }
    
    .upload-formats {
        flex-wrap: wrap;
    }
    
    .format-badge {
        font-size: 11px;
        padding: 4px 12px;
    }
    
    /* Interview Section Mobile */
    .interview-header {
        flex-direction: column;
        gap: var(--spacing-md);
        align-items: center;
    }
    
    .progress-circle {
        width: 70px;
        height: 70px;
    }
    
    .progress-number {
        font-size: 16px;
    }
    
    .timer {
        font-size: 20px;
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .question-tags {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .tag {
        font-size: 12px;
        padding: 4px 12px;
    }
    
    .question-text {
        font-size: 18px;
        text-align: center;
    }
    
    .answer-input {
        min-height: 150px;
        font-size: 15px;
        padding: var(--spacing-sm);
    }
    
    .interview-actions {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .interview-actions button {
        width: 100%;
    }
    
    /* Results Section Mobile */
    .results-header {
        text-align: center;
    }
    
    .section-title {
        font-size: 24px;
    }
    
    .results-header > div {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .results-header button {
        width: 100%;
    }
    
    .score-circle {
        width: 140px;
        height: 140px;
    }
    
    .score-value {
        font-size: 36px;
    }
    
    .score-label {
        font-size: 14px;
    }
    
    .recommendation {
        font-size: 14px;
        padding: var(--spacing-sm);
    }
    
    .score-name, .score-percent {
        font-size: 14px;
    }
    
    .insights-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    /* Exam Mode Mobile */
    body.exam-mode .interview-section {
        padding: var(--spacing-sm);
    }
    
    body.exam-mode .interview-section .glass-card {
        max-height: 100vh;
        padding: var(--spacing-md);
    }
    
    /* Coding Editor Mobile */
    .coding-language-selector {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .language-dropdown {
        width: 100%;
    }
    
    #codingEditor {
        min-height: 400px !important;
    }
}

/* Extra Small Phones (< 480px) */
@media (max-width: 479px) {
    :root {
        --spacing-sm: 0.75rem;
        --spacing-xs: 0.375rem;
    }
    
    .premium-main {
        padding-top: 60px;
    }
    
    .nav-container {
        padding: var(--spacing-xs);
    }
    
    .brand-icon {
        width: 32px;
        height: 32px;
        font-size: 16px;
    }
    
    .brand-text {
        font-size: 16px;
    }
    
    .hero-title {
        font-size: 26px;
    }
    
    .hero-subtitle {
        font-size: 14px;
    }
    
    .btn-primary, .btn-secondary {
        padding: 12px 20px;
        font-size: 14px;
    }
    
    .glass-card {
        padding: var(--spacing-sm);
        border-radius: var(--radius-md);
    }
    
    .card-title {
        font-size: 18px;
    }
    
    .upload-area {
        padding: var(--spacing-md);
    }
    
    .upload-icon {
        font-size: 32px;
    }
    
    .upload-title {
        font-size: 16px;
    }
    
    .question-text {
        font-size: 16px;
    }
    
    .answer-input {
        min-height: 120px;
        font-size: 14px;
    }
    
    .score-circle {
        width: 120px;
        height: 120px;
    }
    
    .score-value {
        font-size: 32px;
    }
    
    .section-title {
        font-size: 20px;
    }
    
    .progress-circle {
        width: 60px;
        height: 60px;
    }
    
    .progress-number {
        font-size: 14px;
    }
    
    .timer {
        font-size: 18px;
    }
}

/* iPad Pro and Large Tablets (Portrait) */
@media (min-width: 768px) and (max-width: 1024px) and (orientation: portrait) {
    .hero-title {
        font-size: 48px;
    }
    
    .results-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-actions {
        flex-direction: row;
    }
}

/* iPad Pro and Large Tablets (Landscape) */
@media (min-width: 1024px) and (max-width: 1366px) and (orientation: landscape) {
    .hero-title {
        font-size: 52px;
    }
    
    .results-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Touch Device Optimizations */
@media (hover: none) and (pointer: coarse) {
    .btn-primary:hover,
    .btn-secondary:hover,
    .glass-card:hover,
    .upload-area:hover {
        transform: none;
    }
    
    .btn-primary, .btn-secondary {
        min-height: 48px;
    }
    
    .nav-link {
        min-height: 44px;
        min-width: 44px;
    }
    
    .upload-area {
        min-height: 200px;
    }
}

/* High DPI / Retina Displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .brand-icon,
    .header-icon,
    .user-avatar {
        image-rendering: -webkit-optimize-contrast;
    }
}

/* Landscape Mode for Phones */
@media (max-height: 500px) and (orientation: landscape) {
    .hero-section {
        min-height: auto;
        padding: var(--spacing-md) 0;
    }
    
    .hero-title {
        font-size: 28px;
    }
    
    .hero-stats {
        display: none;
    }
    
    body.exam-mode .interview-section .glass-card {
        max-height: none;
        overflow: visible;
    }
}

/* Print Styles */
@media print {
    .premium-bg,
    .premium-nav,
    .hero-section,
    .upload-section,
    .interview-section,
    .loading-overlay {
        display: none !important;
    }
    
    .results-section {
        display: block !important;
        padding: 0;
    }
    
    .glass-card {
        background: white;
        border: 1px solid #ccc;
        box-shadow: none;
    }
    
    body {
        background: white;
        color: black;
    }
}