/* ============================================
   DermAI - Modern Dermatology AI Platform
   Premium UI Design System
   ============================================ */

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Brand Colors - Medical & Trustworthy */
    --primary: #2563eb;
    --primary-light: #3b82f6;
    --primary-dark: #1d4ed8;
    --primary-50: #eff6ff;
    --primary-100: #dbeafe;
    --primary-200: #bfdbfe;
    
    /* Accent Colors */
    --accent: #10b981;
    --accent-light: #34d399;
    --accent-dark: #059669;
    
    /* Warning & Error */
    --warning: #f59e0b;
    --error: #ef4444;
    --success: #10b981;
    --info: #06b6d4;
    
    /* Neutral Colors */
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Backgrounds */
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    --bg-elevated: #ffffff;
    --bg-overlay: rgba(0, 0, 0, 0.5);
    
    /* Text */
    --text-primary: #111827;
    --text-secondary: #4b5563;
    --text-tertiary: #6b7280;
    --text-muted: #9ca3af;
    --text-inverse: #ffffff;
    
    /* Borders */
    --border-light: #e5e7eb;
    --border-medium: #d1d5db;
    --border-strong: #9ca3af;
    
    /* Shadows */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);
    
    /* Radius */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
    --radius-full: 9999px;
    
    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Base Styles */
html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background: linear-gradient(to bottom, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    min-height: 100vh;
}

.app {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

/* ============================================
   Header
   ============================================ */
.header {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--border-light);
    padding: var(--space-4) 0;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-base);
    transform: translateY(0);
}

.header.hidden {
    transform: translateY(-100%);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-6);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.logo-icon {
    width: 40px;
    height: 40px;
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-icon svg {
    width: 100%;
    height: 100%;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-name {
    font-size: 1.5rem;
    font-weight: var(--font-weight-extrabold);
    letter-spacing: -0.02em;
    color: var(--text-primary);
    line-height: 1.2;
}

.logo-tagline {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    font-weight: var(--font-weight-medium);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.header-stats {
    display: flex;
    gap: var(--space-6);
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.stat-number {
    font-size: 1.5rem;
    font-weight: var(--font-weight-extrabold);
    color: var(--primary);
    line-height: 1;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    font-weight: var(--font-weight-medium);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ============================================
   Main
   ============================================ */
.main {
    flex: 1;
    padding: var(--space-12) 0;
    margin-top: 73px; /* Header height için padding */
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    text-align: center;
    margin-bottom: var(--space-16);
    padding: var(--space-10) 0;
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--primary-50);
    color: var(--primary);
    border: 1px solid var(--primary-200);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-6);
}

.hero-badge svg {
    width: 16px;
    height: 16px;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: var(--font-weight-extrabold);
    line-height: 1.1;
    letter-spacing: -0.04em;
    margin-bottom: var(--space-6);
    color: var(--text-primary);
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 700px;
    margin: 0 auto var(--space-8);
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: var(--space-8);
    flex-wrap: wrap;
    margin-top: var(--space-10);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--text-secondary);
    font-weight: var(--font-weight-medium);
    font-size: 0.9375rem;
}

.feature-item svg {
    width: 20px;
    height: 20px;
    color: var(--primary);
}

/* ============================================
   Disclaimer
   ============================================ */
.disclaimer {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    border: 2px solid #fbbf24;
    border-radius: var(--radius-xl);
    padding: var(--space-5) var(--space-6);
    margin-bottom: var(--space-12);
    display: flex;
    gap: var(--space-4);
    align-items: flex-start;
}

.disclaimer-icon {
    width: 32px;
    height: 32px;
    color: #92400e;
    flex-shrink: 0;
    margin-top: 2px;
}

.disclaimer-icon svg {
    width: 100%;
    height: 100%;
}

.disclaimer-content h4 {
    font-size: 1rem;
    font-weight: var(--font-weight-bold);
    color: #78350f;
    margin-bottom: var(--space-1);
}

.disclaimer-content p {
    font-size: 0.9375rem;
    color: #92400e;
    line-height: 1.6;
    margin: 0;
}

/* ============================================
   Upload Section
   ============================================ */
.upload-section {
    margin-bottom: var(--space-12);
}

.upload-box {
    position: relative;
    background: var(--bg-elevated);
    border: 2px dashed var(--border-medium);
    border-radius: var(--radius-2xl);
    padding: var(--space-16) var(--space-8);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-slow);
    overflow: hidden;
}

.upload-background {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--primary-50) 0%, transparent 100%);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.upload-box:hover .upload-background {
    opacity: 1;
}

.upload-box:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.upload-box.dragover {
    border-color: var(--primary);
    background: var(--primary-50);
    border-width: 3px;
}

.upload-content {
    position: relative;
    z-index: 1;
}

.upload-icon-wrapper {
    margin-bottom: var(--space-6);
}

.upload-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto;
    color: var(--primary);
    opacity: 0.7;
}

.upload-icon svg {
    width: 100%;
    height: 100%;
}

.upload-title {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    margin-bottom: var(--space-2);
    letter-spacing: -0.02em;
}

.upload-text {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-1);
}

.upload-hint {
    font-size: 0.875rem;
    color: var(--text-tertiary);
    margin-bottom: var(--space-8);
}

.upload-actions {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================
   Camera Modal
   ============================================ */
.camera-modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    background: var(--bg-overlay);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
    animation: fadeIn var(--transition-base);
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.camera-modal-content {
    background: var(--bg-elevated);
    border-radius: var(--radius-2xl);
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-2xl);
    overflow: hidden;
}

.camera-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-5) var(--space-6);
    border-bottom: 1px solid var(--border-light);
}

.camera-modal-header h3 {
    font-size: 1.25rem;
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
}

.btn-close-modal {
    width: 36px;
    height: 36px;
    border: none;
    background: transparent;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.btn-close-modal:hover {
    background: var(--gray-100);
    color: var(--text-primary);
}

.camera-viewport {
    position: relative;
    width: 100%;
    padding-top: 75%; /* 4:3 aspect ratio */
    background: var(--gray-900);
    overflow: hidden;
}

.camera-viewport video,
.camera-viewport canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.camera-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
}

.camera-guide {
    width: 80%;
    max-width: 400px;
    aspect-ratio: 1;
    border: 3px solid rgba(255, 255, 255, 0.8);
    border-radius: var(--radius-xl);
    box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.3);
}

.camera-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    padding: var(--space-6);
    background: var(--bg-secondary);
}

.btn-capture {
    width: 72px;
    height: 72px;
    border-radius: var(--radius-full);
    border: 4px solid var(--primary);
    background: var(--bg-elevated);
    color: var(--primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-lg);
}

.btn-capture:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-xl);
}

.btn-capture:active {
    transform: scale(0.95);
}

.btn-switch-camera {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    border: 2px solid var(--border-medium);
    background: var(--bg-elevated);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.btn-switch-camera:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-50);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    padding: var(--space-3) var(--space-6);
    border: none;
    border-radius: var(--radius-lg);
    font-size: 0.9375rem;
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: all var(--transition-base);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    text-decoration: none;
    font-family: var(--font-family);
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--text-inverse);
    box-shadow: var(--shadow-md);
}

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

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: var(--bg-elevated);
    color: var(--primary);
    border: 2px solid var(--primary);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background: var(--primary);
    color: var(--text-inverse);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

/* ============================================
   Preview
   ============================================ */
.preview {
    background: var(--bg-elevated);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-light);
    margin-top: var(--space-6);
    animation: slideUp var(--transition-slow);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.preview-header {
    padding: var(--space-5) var(--space-6);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
}

.preview-header-left {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.preview-icon {
    width: 40px;
    height: 40px;
    background: var(--primary-50);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
}

.preview-title {
    font-size: 1.125rem;
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    margin-bottom: 2px;
}

.preview-subtitle {
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

.btn-close {
    width: 36px;
    height: 36px;
    padding: 0;
    border-radius: var(--radius-full);
    background: var(--bg-elevated);
    border: 1px solid var(--border-light);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-base);
}

.btn-close:hover {
    background: var(--error);
    border-color: var(--error);
    color: var(--text-inverse);
    transform: rotate(90deg);
}

.preview-body {
    padding: var(--space-8);
    background: var(--bg-secondary);
    display: flex;
    justify-content: center;
    align-items: center;
}

.preview-body img {
    max-width: 100%;
    max-height: 600px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-2xl);
    object-fit: contain;
}

/* ============================================
   Results
   ============================================ */
.results {
    margin-top: var(--space-12);
}

.results-header {
    text-align: center;
    margin-bottom: var(--space-10);
}

.results-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: var(--font-weight-extrabold);
    color: var(--text-primary);
    margin-bottom: var(--space-2);
    letter-spacing: -0.02em;
}

.results-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: var(--space-6);
}

/* ============================================
   Loading
   ============================================ */
.loading-card {
    background: var(--bg-elevated);
    border-radius: var(--radius-2xl);
    padding: var(--space-16) var(--space-8);
    text-align: center;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-light);
    margin-bottom: var(--space-8);
}

.loading-animation {
    position: relative;
    width: 120px;
    height: 120px;
    margin: 0 auto var(--space-8);
}

.loading-spinner {
    position: absolute;
    inset: 0;
    border: 4px solid var(--border-light);
    border-top-color: var(--primary);
    border-radius: var(--radius-full);
    animation: spin 1s linear infinite;
}

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

.loading-rings {
    position: absolute;
    inset: 0;
}

.ring {
    position: absolute;
    border: 2px solid var(--primary-200);
    border-radius: var(--radius-full);
    animation: pulse 2s ease-in-out infinite;
}

.ring-1 {
    inset: 10px;
    animation-delay: 0s;
}

.ring-2 {
    inset: 20px;
    animation-delay: 0.3s;
}

.ring-3 {
    inset: 30px;
    animation-delay: 0.6s;
}

@keyframes pulse {
    0%, 100% {
        opacity: 0.3;
        transform: scale(1);
    }
    50% {
        opacity: 0.6;
        transform: scale(1.1);
    }
}

.loading-title {
    font-size: 1.75rem;
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    margin-bottom: var(--space-2);
    letter-spacing: -0.02em;
}

.loading-text {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-12);
}

.progress-steps {
    display: flex;
    justify-content: center;
    gap: var(--space-4);
    flex-wrap: wrap;
}

.progress-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    flex: 1;
    min-width: 100px;
    opacity: 0.4;
    transition: all var(--transition-base);
}

.progress-step.active {
    opacity: 1;
}

.step-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    background: var(--bg-secondary);
    border: 2px solid var(--border-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-tertiary);
    transition: all var(--transition-base);
}

.progress-step.active .step-icon {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--text-inverse);
    box-shadow: var(--shadow-md);
    transform: scale(1.1);
}

.step-label {
    font-size: 0.8125rem;
    color: var(--text-tertiary);
    font-weight: var(--font-weight-medium);
}

.progress-step.active .step-label {
    color: var(--text-primary);
    font-weight: var(--font-weight-semibold);
}

/* ============================================
   Result Cards
   ============================================ */
.result-card {
    background: var(--bg-elevated);
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-light);
    transition: all var(--transition-slow);
    animation: slideUp var(--transition-slow);
}

.result-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-2xl);
}

.card-header {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
    margin-bottom: var(--space-8);
    padding-bottom: var(--space-6);
    border-bottom: 2px solid var(--border-light);
}

.card-header-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.disease-icon {
    background: linear-gradient(135deg, var(--primary-100) 0%, var(--primary-200) 100%);
    color: var(--primary-dark);
}

.fitzpatrick-icon {
    background: linear-gradient(135deg, #fed7aa 0%, #fdba74 100%);
    color: #9a3412;
}

.card-header-text {
    flex: 1;
}

.card-title {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    margin-bottom: var(--space-1);
    letter-spacing: -0.02em;
}

.card-description {
    font-size: 0.875rem;
    color: var(--text-tertiary);
    font-weight: var(--font-weight-medium);
}

/* Prediction Hero */
.prediction-hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border-radius: var(--radius-xl);
    padding: var(--space-10) var(--space-8);
    margin-bottom: var(--space-8);
    color: var(--text-inverse);
    text-align: center;
    box-shadow: var(--shadow-xl);
    position: relative;
    overflow: hidden;
}

.prediction-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: pulse 4s ease-in-out infinite;
}

.fitzpatrick-hero {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
}

.prediction-badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: var(--space-1) var(--space-3);
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-4);
    backdrop-filter: blur(10px);
}

.prediction-label {
    font-size: clamp(1.5rem, 4vw, 2.25rem);
    font-weight: var(--font-weight-extrabold);
    margin-bottom: var(--space-6);
    letter-spacing: -0.02em;
    line-height: 1.2;
    text-transform: capitalize;
    position: relative;
    z-index: 1;
}

.fitzpatrick-badge {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.25);
    border: 4px solid rgba(255, 255, 255, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    font-weight: var(--font-weight-extrabold);
    margin: 0 auto var(--space-4);
    backdrop-filter: blur(10px);
    position: relative;
    z-index: 1;
}

.prediction-confidence {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    position: relative;
    z-index: 1;
}

.confidence-label {
    font-size: 0.875rem;
    opacity: 0.9;
    font-weight: var(--font-weight-semibold);
    letter-spacing: 0.05em;
}

.confidence-value {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: var(--font-weight-extrabold);
    line-height: 1;
    letter-spacing: -0.05em;
}

/* Card Divider */
.card-divider {
    text-align: center;
    margin: var(--space-8) 0;
    position: relative;
}

.card-divider::before,
.card-divider::after {
    content: '';
    position: absolute;
    top: 50%;
    width: calc(50% - 4rem);
    height: 1px;
    background: var(--border-light);
}

.card-divider::before {
    left: 0;
}

.card-divider::after {
    right: 0;
}

.card-divider span {
    background: var(--bg-elevated);
    padding: 0 var(--space-4);
    color: var(--text-tertiary);
    font-size: 0.8125rem;
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    position: relative;
}

/* Prediction List */
.prediction-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.top-k-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-4) var(--space-5);
    padding-bottom: calc(var(--space-4) + 14px);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    transition: all var(--transition-base);
    gap: var(--space-4);
    position: relative;
}

.top-k-item:hover {
    background: var(--primary-50);
    border-color: var(--primary-200);
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
}

.top-k-label {
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    text-transform: capitalize;
    flex: 1;
    letter-spacing: -0.01em;
}

.top-k-confidence {
    font-weight: var(--font-weight-bold);
    color: var(--primary);
    min-width: 80px;
    text-align: right;
    font-size: 1.125rem;
}

.confidence-bar {
    height: 6px;
    background: var(--border-light);
    border-radius: var(--radius-full);
    overflow: hidden;
    position: absolute;
    bottom: var(--space-4);
    left: var(--space-5);
    right: var(--space-5);
}

.confidence-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    transition: width 1s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: var(--radius-full);
}

/* Scale List */
.scale-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.scale-item {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    transition: all var(--transition-base);
}

.scale-item:hover {
    background: #fff7ed;
    border-color: #fed7aa;
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
}

.scale-label {
    min-width: 100px;
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    font-size: 0.9375rem;
}

.scale-bar-container {
    flex: 1;
    height: 36px;
    background: var(--border-light);
    border-radius: var(--radius-full);
    overflow: hidden;
    position: relative;
}

.scale-bar {
    height: 100%;
    background: linear-gradient(90deg, #f59e0b, #fbbf24);
    transition: width 1s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding-right: var(--space-3);
    color: var(--text-inverse);
    font-weight: var(--font-weight-bold);
    font-size: 0.875rem;
}

/* ============================================
   Error
   ============================================ */
.error-card {
    display: flex;
    gap: var(--space-4);
    padding: var(--space-5) var(--space-6);
    background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
    border: 2px solid var(--error);
    border-radius: var(--radius-xl);
    margin-top: var(--space-8);
    box-shadow: var(--shadow-lg);
    animation: slideUp var(--transition-slow);
}

.error-icon {
    width: 32px;
    height: 32px;
    color: var(--error);
    flex-shrink: 0;
}

.error-icon svg {
    width: 100%;
    height: 100%;
}

.error-content {
    flex: 1;
}

.error-title {
    font-size: 1.125rem;
    font-weight: var(--font-weight-bold);
    color: #991b1b;
    margin-bottom: var(--space-1);
}

.error-text {
    font-size: 0.9375rem;
    color: #7f1d1d;
    margin: 0;
    line-height: 1.6;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--bg-elevated);
    border-top: 1px solid var(--border-light);
    padding: var(--space-8) 0;
    margin-top: var(--space-20);
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-6);
    flex-wrap: wrap;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.footer-logo {
    width: 32px;
    height: 32px;
    color: var(--text-tertiary);
}

.footer-logo svg {
    width: 100%;
    height: 100%;
}

.footer-brand-text {
    display: flex;
    flex-direction: column;
}

.footer-name {
    font-size: 1.125rem;
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    line-height: 1.2;
}

.footer-tagline {
    font-size: 0.75rem;
    color: var(--text-tertiary);
}

.footer-info {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: var(--space-1);
    text-align: right;
}

.footer-copyright {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: var(--font-weight-medium);
    margin: 0;
}

.footer-note {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    margin: 0;
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
    .results-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--space-4);
    }

    .header-inner {
        flex-wrap: wrap;
    }

    .header-stats {
        width: 100%;
        justify-content: center;
    }

    .main {
        padding: var(--space-8) 0;
        margin-top: 85px; /* Mobilde header daha yüksek (wrap olduğu için) */
    }

    .hero {
        margin-bottom: var(--space-12);
        padding: var(--space-6) 0;
    }

    .hero-features {
        flex-direction: column;
        gap: var(--space-4);
        align-items: center;
    }

    .upload-box {
        padding: var(--space-8) var(--space-4);
        border-radius: var(--radius-xl);
    }

    .upload-icon-wrapper {
        margin-bottom: var(--space-4);
    }

    .upload-icon {
        width: 56px;
        height: 56px;
    }

    .upload-title {
        font-size: 1.25rem;
        margin-bottom: var(--space-2);
    }

    .upload-text {
        font-size: 0.9375rem;
        margin-bottom: var(--space-1);
    }

    .upload-hint {
        font-size: 0.8125rem;
        margin-bottom: var(--space-6);
    }

    .upload-actions {
        flex-direction: column;
        width: 100%;
        gap: var(--space-3);
    }

    .upload-actions .btn {
        width: 100%;
        padding: var(--space-3) var(--space-5);
        font-size: 0.9375rem;
    }

    .card-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .card-header-icon {
        align-self: center;
    }

    .progress-steps {
        flex-direction: column;
        gap: var(--space-3);
    }

    .progress-step {
        width: 100%;
        flex-direction: row;
        justify-content: flex-start;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .footer-info {
        align-items: center;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .logo-name {
        font-size: 1.25rem;
    }

    .logo-tagline {
        font-size: 0.7rem;
    }

    .upload-box {
        padding: var(--space-6) var(--space-4);
        border-radius: var(--radius-lg);
    }

    .upload-icon {
        width: 48px;
        height: 48px;
    }

    .upload-title {
        font-size: 1.125rem;
        margin-bottom: var(--space-1);
    }

    .upload-text {
        font-size: 0.875rem;
        line-height: 1.5;
    }

    .upload-hint {
        font-size: 0.75rem;
        margin-bottom: var(--space-5);
    }

    .upload-actions {
        gap: var(--space-2);
    }

    .upload-actions .btn {
        padding: var(--space-3) var(--space-4);
        font-size: 0.875rem;
    }

    .upload-actions .btn svg {
        width: 18px;
        height: 18px;
    }

    .upload-box:hover {
        transform: none;
    }

    .camera-modal {
        padding: 0;
    }

    .camera-modal-content {
        border-radius: 0;
        max-height: 100vh;
    }

    .prediction-hero {
        padding: var(--space-8) var(--space-6);
    }

    .top-k-item {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-2);
        padding-bottom: calc(var(--space-4) + 14px);
    }

    .top-k-confidence {
        text-align: left;
        width: 100%;
    }

    .confidence-bar {
        position: absolute;
        bottom: var(--space-4);
        left: var(--space-5);
        right: var(--space-5);
        margin-top: 0;
    }
}

/* Print Styles */
@media print {
    .header,
    .footer,
    .upload-section,
    .camera-modal,
    .btn {
        display: none;
    }
}