/* Add dark mode support */

html.dark {
    color-scheme: dark;
}

body {
    min-height: 100vh;
    background-color: var(--background);
    color: var(--text-primary);
    transition: background-color 0.3s, color 0.3s;
}

:root {
    --background: #ffffff;
    --foreground: #1A1A1A;
    --card-bg: #ffffff;
    --card-border: #e5e7eb;
    --text-primary: #1A1A1A;
    --text-secondary: #4b5563;
    --button-bg: #2563eb;
    --button-hover: #1d4ed8;
    --preview-bg: #f9fafb;
    --muted: #6b7280;
    --border: #e5e7eb;
    --ring: #e5e7eb;
    --radius: 0.5rem;
}

[data-theme="dark"] {
    --background: #000000;
    --foreground: #ffffff;
    --card-bg: #1A1A1A;
    --card-border: #374151;
    --text-primary: #ffffff;
    --text-secondary: #9ca3af;
    --button-bg: #3b82f6;
    --button-hover: #2563eb;
    --preview-bg: #111827;
}

.container {
    max-width: 800px;
    margin: 2rem auto;
    padding: 0 1rem;
}

.upload-container {
    margin: 2rem 0;
}

.upload-box {
    background-color: var(--card-bg);
    border: 2px dashed var(--card-border);
    border-radius: var(--radius);
    padding: 2.5rem;
    text-align: center;
    transition: all 0.2s;
}

.upload-box:hover {
    border-color: var(--button-bg);
    background-color: var(--preview-bg);
}

.upload-box h2 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--foreground);
    margin-bottom: 0.5rem;
}

.upload-text {
    color: var(--muted-foreground);
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
}

.upload-area {
    margin-top: 1rem;
}

.choose-files-btn {
    background-color: var(--button-bg);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.choose-files-btn:hover {
    background-color: var(--button-hover);
}

.file-info {
    margin: 1rem 0;
    padding: 1rem;
    background-color: var(--card-bg);
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.progress {
    height: 0.5rem;
    background-color: var(--border);
    border-radius: 0.25rem;
    overflow: hidden;
    margin: 1rem 0;
}

.progress-bar {
    height: 100%;
    background-color: var(--button-bg);
    transition: width 0.3s ease;
}

.alert {
    padding: 1rem;
    border-radius: 0.5rem;
    margin: 1rem 0;
}

.alert-success {
    background-color: #D1FAE5;
    color: #065F46;
}

.alert-danger {
    background-color: #FEE2E2;
    color: #991B1B;
}