/* 
 * Hematoma Detection App - Styles
 * Dark industrial theme optimized for factory use
 */

/* ===== CSS Variables ===== */
:root {
    --bg-primary: #0d0d14;
    --bg-secondary: #1a1a2e;
    --bg-tertiary: #16213e;
    --bg-card: #1f1f35;
    
    --text-primary: #ffffff;
    --text-secondary: #a0a0b8;
    --text-muted: #6b6b80;
    
    --accent-primary: #6366f1;
    --accent-secondary: #818cf8;
    --accent-glow: rgba(99, 102, 241, 0.3);
    
    --success: #10b981;
    --success-bg: rgba(16, 185, 129, 0.15);
    --success-glow: rgba(16, 185, 129, 0.4);
    
    --danger: #ef4444;
    --danger-bg: rgba(239, 68, 68, 0.15);
    --danger-glow: rgba(239, 68, 68, 0.4);
    
    --warning: #f59e0b;
    --warning-bg: rgba(245, 158, 11, 0.15);
    
    --border-color: rgba(255, 255, 255, 0.08);
    --border-glow: rgba(99, 102, 241, 0.5);
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 400ms ease;
}

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

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.5;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== App Container ===== */
.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: 
        radial-gradient(ellipse at top, rgba(99, 102, 241, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at bottom right, rgba(16, 185, 129, 0.05) 0%, transparent 50%),
        var(--bg-primary);
}

/* ===== Header ===== */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    background: rgba(26, 26, 46, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-icon {
    font-size: 1.75rem;
    filter: drop-shadow(0 0 8px var(--accent-glow));
}

.logo-text h1 {
    font-size: 1.125rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--text-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-text .subtitle {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.875rem;
    background: var(--bg-card);
    border-radius: 100px;
    border: 1px solid var(--border-color);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--warning);
    animation: pulse 2s infinite;
}

.status-indicator.ready .status-dot {
    background: var(--success);
    box-shadow: 0 0 8px var(--success-glow);
}

.status-indicator.error .status-dot {
    background: var(--danger);
}

.status-text {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* ===== Main Content ===== */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 1.5rem;
    gap: 1.5rem;
    max-width: 600px;
    margin: 0 auto;
    width: 100%;
}

/* ===== Result Container ===== */
.result-container {
    display: flex;
    justify-content: center;
}

.result-card {
    text-align: center;
    padding: 2rem;
    border-radius: var(--radius-xl);
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    width: 100%;
    transition: all var(--transition-normal);
}

.result-card.waiting {
    border-color: var(--border-color);
}

.result-card.ok {
    background: var(--success-bg);
    border-color: var(--success);
    box-shadow: 0 0 40px var(--success-glow);
}

.result-card.bad {
    background: var(--danger-bg);
    border-color: var(--danger);
    box-shadow: 0 0 40px var(--danger-glow);
    animation: shake 0.5s ease-in-out;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

.result-icon {
    font-size: 4rem;
    margin-bottom: 0.5rem;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.3));
}

.result-card.ok .result-icon {
    animation: pop 0.4s ease-out;
}

@keyframes pop {
    0% { transform: scale(0.5); opacity: 0; }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); opacity: 1; }
}

.result-text {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 0.25rem;
}

.result-card.ok .result-text {
    color: var(--success);
}

.result-card.bad .result-text {
    color: var(--danger);
}

.result-details {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* ===== Preview Container ===== */
.preview-container {
    position: relative;
    width: 100%;
    aspect-ratio: 4/3;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-color);
}

#imageCanvas {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: none;
}

#imageCanvas.visible {
    display: block;
}

.preview-placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    color: var(--text-muted);
}

.preview-placeholder.hidden {
    display: none;
}

.placeholder-icon {
    font-size: 3rem;
    opacity: 0.5;
}

.placeholder-text {
    font-size: 0.875rem;
    font-weight: 500;
}

/* ===== Action Buttons ===== */
.actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.action-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1.5rem 1rem;
    border-radius: var(--radius-lg);
    border: none;
    cursor: pointer;
    font-family: inherit;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.action-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.1), transparent);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.action-btn:hover::before {
    opacity: 1;
}

.action-btn:active {
    transform: scale(0.98);
}

.camera-btn {
    background: linear-gradient(135deg, var(--accent-primary), #4f46e5);
    color: white;
    box-shadow: var(--shadow-md), 0 0 20px var(--accent-glow);
}

.camera-btn:hover {
    box-shadow: var(--shadow-lg), 0 0 30px var(--accent-glow);
}

.upload-btn {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

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

.btn-icon {
    font-size: 2rem;
}

.btn-text {
    font-size: 0.875rem;
    font-weight: 600;
}

/* ===== Camera Modal ===== */
.camera-modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.95);
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
}

.camera-modal.active {
    display: flex;
}

.camera-container {
    width: 100%;
    height: 100%;
    position: relative;
    display: flex;
    flex-direction: column;
}

#cameraVideo {
    width: 100%;
    flex: 1;
    object-fit: cover;
    background: black;
}

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

.camera-frame {
    width: 85%;
    aspect-ratio: 4/3;
    border: 3px solid rgba(255, 255, 255, 0.5);
    border-radius: var(--radius-md);
    box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.3);
}

.camera-controls {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding: 2rem;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
}

.camera-control-btn {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.capture-btn {
    width: 72px;
    height: 72px;
    background: white;
    box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.3);
}

.capture-btn:active {
    transform: scale(0.95);
    background: #e0e0e0;
}

.cancel-btn, .switch-btn {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(8px);
    color: white;
}

.cancel-btn:hover, .switch-btn:hover {
    background: rgba(255, 255, 255, 0.25);
}

/* ===== Loading Overlay ===== */
.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(13, 13, 20, 0.9);
    backdrop-filter: blur(8px);
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    z-index: 1001;
}

.loading-overlay.active {
    display: flex;
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid var(--border-color);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.loading-text {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-secondary);
}

/* ===== Footer ===== */
.footer {
    text-align: center;
    padding: 1rem;
    color: var(--text-muted);
    font-size: 0.75rem;
    border-top: 1px solid var(--border-color);
}

/* ===== Responsive ===== */
@media (min-width: 768px) {
    .main-content {
        padding: 2rem;
        gap: 2rem;
    }
    
    .result-card {
        padding: 3rem;
    }
    
    .result-icon {
        font-size: 5rem;
    }
    
    .result-text {
        font-size: 2.5rem;
    }
    
    .action-btn {
        padding: 2rem;
    }
    
    .btn-icon {
        font-size: 2.5rem;
    }
    
    .btn-text {
        font-size: 1rem;
    }
}

/* ===== Detection Box Styles (for canvas) ===== */
.detection-box {
    stroke: var(--danger);
    stroke-width: 3;
    fill: none;
}

.detection-label {
    fill: var(--danger);
    font-weight: bold;
}