/* Product Analysis Application - Modern Styling */

:root {
    /* Color Palette */
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --success-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --bg-dark: #0f0f23;
    --bg-card: rgba(255, 255, 255, 0.05);
    --text-primary: #ffffff;
    --text-secondary: #a0aec0;
    --border-color: rgba(255, 255, 255, 0.1);
    --shadow-glow: 0 8px 32px 0 rgba(102, 126, 234, 0.2);

    /* 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: 16px;
    --radius-lg: 24px;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    padding: var(--spacing-md);
    background-image:
        radial-gradient(circle at 20% 50%, rgba(102, 126, 234, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(118, 75, 162, 0.1) 0%, transparent 50%);
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--spacing-lg) 0;
}

/* Header */
header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    animation: fadeInDown 0.6s ease-out;
}

h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    font-weight: 400;
}

.version-info {
    margin-top: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.version {
    font-size: 0.875rem;
    color: var(--text-secondary);
    padding: 4px 12px;
    background: rgba(102, 126, 234, 0.1);
    border-radius: 12px;
    border: 1px solid rgba(102, 126, 234, 0.3);
}

.clear-cache-btn {
    font-size: 0.875rem;
    padding: 6px 14px;
    background: rgba(79, 172, 254, 0.1);
    border: 1px solid rgba(79, 172, 254, 0.3);
    border-radius: 12px;
    color: #4facfe;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: inherit;
}

.clear-cache-btn:hover {
    background: rgba(79, 172, 254, 0.2);
    border-color: #4facfe;
    transform: translateY(-1px);
}

/* Card Styling */
.card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-glow);
    transition: all 0.3s ease;
    animation: fadeInUp 0.6s ease-out;
}

/* Pizza Score Visualization */
.pizza-score-container {
    position: relative;
    width: var(--pizza-size, 200px);
    height: var(--pizza-size, 200px);
    margin: 0 auto 1rem;
}

.pizza-chart {
    position: relative;
    width: 100%;
    height: 100%;
    transform: rotate(-18deg);
}

.slice {
    position: absolute;
    width: 50%;
    height: 100%;
    top: 0;
    left: 50%;
    transform-origin: 0% 100%;
    overflow: hidden;
}

.slice.filled {
    background: url("assets/pizza_slice_filled_1763820929571.png");
    background-size: cover;
}

.slice.empty {
    background: url("assets/pizza_slice_empty_1763820963880.png");
    background-size: cover;
    opacity: 0.4;
}

.pizza-text {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--text-primary);
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 48px 0 rgba(102, 126, 234, 0.3);
}

/* Upload Section */
.upload-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.upload-box {
    position: relative;
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
    background: rgba(255, 255, 255, 0.02);
}

.upload-box:hover {
    border-color: #667eea;
    background: rgba(102, 126, 234, 0.05);
}

.upload-box.has-file {
    border-color: #4facfe;
    background: rgba(79, 172, 254, 0.1);
}

.upload-box.optional {
    border-style: dashed;
    opacity: 0.85;
}

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

.upload-box.optional .upload-hint {
    color: #4facfe;
    font-size: 0.8rem;
}

.upload-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
    opacity: 0.6;
}

.upload-label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

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

input[type="file"] {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
    overflow: hidden;
}

/* Image Preview */
.preview-container {
    margin-top: var(--spacing-md);
    display: none;
}

.preview-container.active {
    display: block;
}

.preview-image {
    max-width: 100%;
    max-height: 200px;
    border-radius: var(--radius-sm);
    margin-top: var(--spacing-sm);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.file-name {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: var(--spacing-xs);
    word-break: break-all;
}

/* Button */
.btn {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 1.1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    background: var(--primary-gradient);
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 16px rgba(102, 126, 234, 0.4);
    position: relative;
    overflow: hidden;
}

.btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(102, 126, 234, 0.6);
}

padding: var(--spacing-lg) 0;
}

/* Header */
header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    animation: fadeInDown 0.6s ease-out;
}

h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    font-weight: 400;
}

.version-info {
    margin-top: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.version {
    font-size: 0.875rem;
    color: var(--text-secondary);
    padding: 4px 12px;
    background: rgba(102, 126, 234, 0.1);
    border-radius: 12px;
    border: 1px solid rgba(102, 126, 234, 0.3);
}

.clear-cache-btn {
    font-size: 0.875rem;
    padding: 6px 14px;
    background: rgba(79, 172, 254, 0.1);
    border: 1px solid rgba(79, 172, 254, 0.3);
    border-radius: 12px;
    color: #4facfe;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: inherit;
}

.clear-cache-btn:hover {
    background: rgba(79, 172, 254, 0.2);
    border-color: #4facfe;
    transform: translateY(-1px);
}

/* Card Styling */
.card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-glow);
    transition: all 0.3s ease;
    animation: fadeInUp 0.6s ease-out;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 48px 0 rgba(102, 126, 234, 0.3);
}

/* Upload Section */
.upload-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.upload-box {
    position: relative;
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
    background: rgba(255, 255, 255, 0.02);
}

.upload-box:hover {
    border-color: #667eea;
    background: rgba(102, 126, 234, 0.05);
}

.upload-box.has-file {
    border-color: #4facfe;
    background: rgba(79, 172, 254, 0.1);
}

.upload-box.optional {
    border-style: dashed;
    opacity: 0.85;
}

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

.upload-box.optional .upload-hint {
    color: #4facfe;
    font-size: 0.8rem;
}

.upload-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
    opacity: 0.6;
}

.upload-label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

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

input[type="file"] {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
    overflow: hidden;
}

/* Image Preview */
.preview-container {
    margin-top: var(--spacing-md);
    display: none;
}

.preview-container.active {
    display: block;
}

.preview-image {
    max-width: 100%;
    max-height: 200px;
    border-radius: var(--radius-sm);
    margin-top: var(--spacing-sm);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.file-name {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: var(--spacing-xs);
    word-break: break-all;
}

/* Button */
.btn {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 1.1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    background: var(--primary-gradient);
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 16px rgba(102, 126, 234, 0.4);
    position: relative;
    overflow: hidden;
}

}

100% {
    transform: translateX(-50px) scale(0.5);
    opacity: 0;
}
}

@keyframes slideInRight {
    0% {
        transform: translateX(50px) scale(0.5);
        opacity: 0;
    }

    100% {
        transform: translateX(0) scale(1);
        opacity: 1;
    }
}

/* Loading State */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 15, 35, 0.95);
    backdrop-filter: blur(8px);
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

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

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

.loading-text {
    font-size: 1.2rem;
    color: var(--text-primary);
    font-weight: 600;
    margin-top: var(--spacing-sm);
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Responsive Design */
@media (max-width: 768px) {
    body {
        padding: var(--spacing-sm);
    }

    .container {
        padding: var(--spacing-sm) 0;
    }

    .card {
        padding: var(--spacing-md);
    }

    .upload-section {
        grid-template-columns: 1fr;
    }

    h1 {
        font-size: 2rem;
    }

    .subtitle {
        font-size: 1rem;
    }

    .version-info {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
}