/* ===================================
   Global Styles & CSS Variables
   =================================== */

@import url('https://fonts.googleapis.com/css2?family=Cairo:wght@400;600;700&display=swap');

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

:root {
    /* New Modern Color Palette */
    --bg-primary: #0D1117;
    --bg-secondary: #161B22;
    --bg-tertiary: #21262d;
    --accent-primary: #3A8EF6;
    --accent-secondary: #6C63FF;
    --text-primary: #ffffff;
    --text-secondary: #B0BEC5;
    --border-color: #30363d;
    --success: #00ff88;
    --warning: #ffa500;
    --error: #ff4757;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 18px;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 20px rgba(0, 0, 0, 0.6);
    --glow: 0 0 20px rgba(58, 142, 246, 0.3);
    --glow-secondary: 0 4px 12px rgba(108, 99, 255, 0.4);
}

body {
    font-family: 'Cairo', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    direction: rtl;
    overflow-x: hidden;
    scroll-behavior: smooth;
}

/* ===================================
   Header Section
   =================================== */

.header {
    background: var(--bg-secondary);
    padding: var(--spacing-md) var(--spacing-lg);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 2px solid var(--accent-primary);
}

.logo-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.logo {
    transition: transform 0.3s ease;
}

.logo:hover {
    transform: scale(1.1) rotate(5deg);
}

.title {
    font-size: 2.2rem;
    font-weight: 700;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.status-indicator {
    margin-top: var(--spacing-sm);
}

.status-text {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    border: 1px solid var(--border-color);
}

.status-text.ready {
    border-color: var(--success);
    color: var(--success);
}

.status-text.training {
    border-color: var(--warning);
    color: var(--warning);
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% { 
        opacity: 1;
        color: var(--accent-secondary);
    }
    50% { 
        opacity: 0.8;
        color: var(--accent-primary);
    }
    100% { 
        opacity: 1;
        color: var(--accent-secondary);
    }
}

/* ===================================
   Main Container
   =================================== */

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-lg);
}

/* ===================================
   Section Styles
   =================================== */

.intro-section {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.intro-section h2 {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
    color: var(--accent-primary);
}

.description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 800px;
    margin: 0 auto;
}

.section-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-primary);
}

.icon {
    font-size: 1.8rem;
}

section {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

/* ===================================
   Class Cards (Training Data)
   =================================== */

.classes-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.class-card {
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    border: 2px solid var(--border-color);
    transition: all 0.3s ease;
}

.class-card:hover {
    border-color: var(--accent-primary);
    box-shadow: var(--glow);
}

.class-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    gap: var(--spacing-sm);
}

.class-name-input {
    flex: 1;
    padding: var(--spacing-sm);
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    transition: border-color 0.3s ease;
}

.class-name-input:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.btn-remove-class {
    width: 36px;
    height: 36px;
    background: var(--error);
    border: none;
    border-radius: var(--radius-sm);
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    line-height: 1;
}

.btn-remove-class:hover {
    background: #ff1744;
    transform: scale(1.1);
}

/* ===================================
   Upload Area
   =================================== */

.upload-area {
    position: relative;
    margin-bottom: var(--spacing-md);
}

.file-input {
    display: none;
}

.upload-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.3s ease;
    background: var(--bg-secondary);
    min-height: 150px;
}

.upload-label:hover {
    border-color: var(--accent-primary);
    background: var(--bg-tertiary);
}

.upload-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.upload-label span:last-child {
    color: var(--text-secondary);
    text-align: center;
}

/* ===================================
   Webcam Controls
   =================================== */

.webcam-controls {
    margin-bottom: var(--spacing-md);
}

.btn-webcam {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

/* ===================================
   Images Preview
   =================================== */

.images-preview {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
    min-height: 40px;
}

.preview-image-container {
    position: relative;
    aspect-ratio: 1;
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 2px solid var(--border-color);
}

.preview-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.btn-remove-image {
    position: absolute;
    top: 4px;
    left: 4px;
    width: 24px;
    height: 24px;
    background: var(--error);
    border: none;
    border-radius: 50%;
    color: white;
    cursor: pointer;
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.preview-image-container:hover .btn-remove-image {
    opacity: 1;
}

.image-count {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-sm);
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
}

.count-number {
    font-weight: 700;
    color: var(--accent-primary);
}

/* ===================================
   Buttons
   =================================== */

.btn-primary, .btn-secondary, .btn-mode {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.btn-primary {
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    color: white;
    box-shadow: var(--glow-secondary);
}

.btn-primary:hover:not(:disabled) {
    transform: scale(1.04);
    box-shadow: 0 6px 16px rgba(58, 142, 246, 0.5);
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

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

.btn-add-class {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.btn-add-class:hover {
    border-color: var(--accent-primary);
    background: var(--bg-secondary);
}

/* ===================================
   Training Controls
   =================================== */

.training-controls {
    margin-top: var(--spacing-lg);
    text-align: center;
}

#trainBtn {
    font-size: 1.2rem;
    padding: var(--spacing-md) var(--spacing-xl);
    min-width: 250px;
}

.training-progress {
    margin-top: var(--spacing-md);
}

.progress-bar {
    width: 100%;
    height: 30px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 2px solid var(--border-color);
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    width: 0%;
    transition: width 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
}

.progress-text {
    margin-top: var(--spacing-sm);
    color: var(--text-secondary);
}

/* ===================================
   Modal (Webcam)
   =================================== */

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: var(--spacing-md);
}

.modal.hidden {
    display: none;
}

.modal-content {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 550px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-lg);
    border: 2px solid var(--accent-primary);
}

.modal-header {
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 2px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-shrink: 0;
}

.modal-header h3 {
    margin: 0;
    color: var(--accent-primary);
}

.btn-close-modal {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 2rem;
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    transition: all 0.3s ease;
}

.btn-close-modal:hover {
    background: var(--bg-tertiary);
    color: var(--error);
}

.modal-body {
    padding: var(--spacing-md);
    max-height: 60vh;
    overflow-y: auto;
}

.webcam-feed {
    width: 100%;
    max-height: 280px;
    height: auto;
    object-fit: cover;
    border-radius: var(--radius-md);
    background: var(--bg-primary);
    display: block;
}

.modal-footer {
    padding: var(--spacing-sm) var(--spacing-md);
    border-top: 2px solid var(--border-color);
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.capture-info {
    flex: 1;
    text-align: center;
    color: var(--text-secondary);
    min-width: 150px;
}

.capture-info span {
    color: var(--accent-primary);
    font-weight: 700;
}

/* Auto Capture Controls */
.auto-capture-controls {
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    border: 2px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.auto-capture-toggle {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    font-weight: 600;
    color: var(--text-primary);
}

.auto-capture-toggle input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--accent-primary);
}

.auto-capture-settings {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
}

.auto-capture-settings label {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.auto-capture-settings select {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    cursor: pointer;
    transition: all 0.3s ease;
}

.auto-capture-settings select:hover {
    border-color: var(--accent-primary);
}

.auto-capture-settings select:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* ===================================
   Prediction Section
   =================================== */

.prediction-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

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

.btn-mode {
    flex: 1;
    background: var(--bg-tertiary);
    border: 2px solid var(--border-color);
    color: var(--text-secondary);
}

.btn-mode.active {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: white;
    border-color: transparent;
}

.predict-upload-area, .predict-webcam-area {
    min-height: 300px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
}

.predict-image {
    max-width: 100%;
    max-height: 400px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}

.prediction-results {
    background: var(--bg-tertiary);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border: 2px solid var(--border-color);
}

.prediction-results h4 {
    margin-bottom: var(--spacing-md);
    color: var(--accent-primary);
}

.predictions-display {
    min-height: 200px;
}

.no-prediction {
    color: var(--text-secondary);
    text-align: center;
    padding: var(--spacing-lg);
}

.prediction-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    border: 2px solid var(--border-color);
}

.prediction-item.top {
    border-color: var(--accent-primary);
    box-shadow: var(--glow);
}

.prediction-label {
    font-weight: 700;
    font-size: 1.1rem;
}

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

.confidence-bar {
    width: 100px;
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.confidence-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    transition: width 0.3s ease;
}

.confidence-text {
    font-weight: 700;
    color: var(--accent-primary);
    min-width: 50px;
    text-align: left;
}

/* ===================================
   Statistics Section
   =================================== */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.stat-card {
    background: var(--bg-tertiary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    border: 2px solid var(--border-color);
    text-align: center;
    transition: all 0.3s ease;
}

.stat-card:hover {
    border-color: var(--accent-primary);
    transform: translateY(-4px);
}

.stat-label {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    font-size: 0.9rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-primary);
}

/* ===================================
   Export Section
   =================================== */

.export-container {
    text-align: center;
}

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

.export-status {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    background: var(--bg-tertiary);
    color: var(--success);
}

/* ===================================
   Footer
   =================================== */

.footer {
    text-align: center;
    padding: var(--spacing-lg);
    color: var(--text-secondary);
    background: var(--bg-secondary);
    border-top: 2px solid var(--border-color);
}

/* ===================================
   Utility Classes
   =================================== */

.hidden {
    display: none !important;
}

/* ===================================
   Responsive Design
   =================================== */

/* Tablet Screens */
@media (max-width: 1024px) {
    .container {
        padding: var(--spacing-md);
    }
    
    .prediction-container {
        grid-template-columns: 1fr;
    }
    
    .title {
        font-size: 1.5rem;
    }
}

/* Mobile Screens */
@media (max-width: 768px) {
    .header {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .title {
        font-size: 1.2rem;
    }
    
    .logo svg {
        width: 40px;
        height: 40px;
    }
    
    .container {
        padding: var(--spacing-sm);
    }
    
    section {
        padding: var(--spacing-md);
    }
    
    .intro-section h2 {
        font-size: 1.5rem;
    }
    
    .description {
        font-size: 1rem;
    }
    
    .classes-container {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .modal-content {
        width: 95%;
    }
    
    .modal-footer {
        flex-direction: column;
    }
    
    .modal-footer button {
        width: 100%;
    }
    
    .btn-primary, .btn-secondary {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.9rem;
    }
}

/* Small Mobile Screens */
@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-value {
        font-size: 1.5rem;
    }
    
    .images-preview {
        grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
    }
}