/**
 * Skin Analysis Interactive - Styles
 * تصميم تجربة تحليل البشرة التفاعلية
 */

/* ===================================
   Variables & Reset
   =================================== */
:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --dark-bg: #1a1a1a;
    --dark-bg-2: #2d2d2d;
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --accent-blue: #667eea;
    --accent-purple: #764ba2;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    direction: rtl;
}

/* ===================================
   Loading Screen
   =================================== */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
}

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

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

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

.loading-content h2 {
    font-size: 24px;
    margin-bottom: 10px;
}

.loading-content p {
    font-size: 16px;
    color: var(--text-secondary);
}

/* ===================================
   Main Container
   =================================== */
.analysis-container {
    max-width: 500px;
    margin: 0 auto;
    min-height: 100vh;
    position: relative;
    overflow: hidden;
}

/* ===================================
   Screens
   =================================== */
.screen {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    min-height: 100vh;
    opacity: 0;
    visibility: hidden;
    transform: translateX(100%);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.screen.active {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
    position: relative;
}

.screen.exit-left {
    transform: translateX(-100%);
}

.screen.exit-right {
    transform: translateX(100%);
}

.screen-content {
    padding: 40px 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

/* ===================================
   Face Container
   =================================== */
.face-container {
    position: relative;
    width: 300px;
    height: 400px;
    margin: 0 auto 30px;
    border-radius: 20px;
    overflow: hidden;
}

.face-container.blurred {
    filter: blur(8px);
    opacity: 0.3;
}

.face-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, transparent 30%, rgba(0,0,0,0.5) 100%);
    pointer-events: none;
}

.face-svg {
    width: 100%;
    height: 100%;
}

/* Detection Points */
.detection-point {
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 0.6;
        transform: scale(1);
    }
    50% {
        opacity: 1;
        transform: scale(1.2);
    }
}

/* ===================================
   Screen 1: Detection
   =================================== */
.detection-result {
    text-align: center;
    margin: 30px 0;
    padding: 30px 20px;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    border: 1px solid var(--glass-border);
}

.result-title {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 15px;
    background: linear-gradient(135deg, #fff 0%, rgba(255,255,255,0.8) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.result-subtitle {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===================================
   Screen 2: Symptoms
   =================================== */
.symptoms-container {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.symptoms-title {
    font-size: 36px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 30px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.symptoms-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin-bottom: 30px;
}

.symptom-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 2px solid var(--glass-border);
    border-radius: 15px;
    padding: 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.symptom-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--primary-gradient);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.symptom-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-blue);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
}

.symptom-card.selected {
    border-color: var(--accent-blue);
    background: rgba(102, 126, 234, 0.2);
}

.symptom-card.selected::before {
    opacity: 0.1;
}

.symptom-icon {
    font-size: 32px;
    margin-bottom: 10px;
    position: relative;
    z-index: 1;
}

.symptom-name {
    font-size: 14px;
    font-weight: 600;
    position: relative;
    z-index: 1;
}

.symptom-checkbox {
    position: absolute;
    top: 10px;
    left: 10px;
    width: 20px;
    height: 20px;
    border: 2px solid var(--glass-border);
    border-radius: 50%;
    background: transparent;
    transition: all 0.3s ease;
    z-index: 2;
}

.symptom-card.selected .symptom-checkbox {
    background: var(--accent-blue);
    border-color: var(--accent-blue);
}

.symptom-card.selected .symptom-checkbox::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 12px;
}

/* ===================================
   Screen 3: Results
   =================================== */
.results-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 30px;
}

/* Score Display */
.score-display {
    text-align: center;
    padding: 30px;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    border: 1px solid var(--glass-border);
}

.score-circle {
    display: inline-flex;
    align-items: baseline;
    justify-content: center;
    margin-bottom: 20px;
}

.score-number {
    font-size: 72px;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.score-percent {
    font-size: 36px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-right: 5px;
}

.score-labels {
    display: flex;
    justify-content: space-between;
    padding: 0 20px;
    font-size: 14px;
    color: var(--text-secondary);
}

/* Date Section */
.date-section,
.clinics-section {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    border: 1px solid var(--glass-border);
    padding: 20px;
}

.section-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 15px;
}

.date-buttons {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    padding-bottom: 10px;
}

.date-buttons::-webkit-scrollbar {
    height: 4px;
}

.date-buttons::-webkit-scrollbar-thumb {
    background: var(--glass-border);
    border-radius: 2px;
}

.date-btn {
    flex-shrink: 0;
    padding: 12px 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid var(--glass-border);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.date-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--accent-blue);
}

.date-btn.selected {
    background: var(--accent-blue);
    border-color: var(--accent-blue);
}

/* Clinics List */
.clinics-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.clinic-card {
    display: flex;
    gap: 15px;
    padding: 15px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    border: 1px solid var(--glass-border);
    transition: all 0.3s ease;
    cursor: pointer;
}

.clinic-card:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateX(-5px);
}

.clinic-image {
    width: 80px;
    height: 80px;
    border-radius: 12px;
    object-fit: cover;
    flex-shrink: 0;
}

.clinic-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.clinic-name {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 5px;
}

.clinic-rating {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 14px;
    color: var(--warning);
    margin-bottom: 5px;
}

.clinic-distance {
    font-size: 12px;
    color: var(--text-secondary);
}

.clinic-actions {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: flex-end;
}

.clinic-book-btn {
    padding: 8px 16px;
    background: var(--success);
    border: none;
    border-radius: 8px;
    color: white;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.clinic-book-btn:hover {
    background: #059669;
    transform: scale(1.05);
}

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

/* ===================================
   Progress Indicator
   =================================== */
.progress-indicator {
    text-align: center;
    margin: 20px 0;
}

.progress-text {
    display: inline-block;
    padding: 8px 20px;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    border: 1px solid var(--glass-border);
    font-size: 14px;
    font-weight: 600;
}

/* ===================================
   Navigation Buttons
   =================================== */
.navigation-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 20px;
}

.btn {
    padding: 15px 30px;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

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

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 2px solid var(--glass-border);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
}

.btn-success {
    background: var(--success);
    color: white;
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.4);
}

.btn-success:hover {
    background: #059669;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.6);
}

.btn-text {
    background: transparent;
    color: var(--text-secondary);
    padding: 10px 20px;
}

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

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 480px) {
    .screen-content {
        padding: 20px 15px;
    }
    
    .face-container {
        width: 250px;
        height: 333px;
    }
    
    .result-title {
        font-size: 24px;
    }
    
    .symptoms-title {
        font-size: 28px;
    }
    
    .symptoms-grid {
        gap: 10px;
    }
    
    .symptom-card {
        padding: 15px;
    }
    
    .score-number {
        font-size: 56px;
    }
    
    .score-percent {
        font-size: 28px;
    }
}

/* ===================================
   Animations
   =================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.5s ease forwards;
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.slide-in-right {
    animation: slideInRight 0.5s ease forwards;
}