import gradio as gr

def get_theme():
    """Returns a custom Gradio theme with Apple-inspired design."""
    theme = gr.themes.Base(
        primary_hue="neutral",
        secondary_hue="neutral",
        neutral_hue="neutral",
        spacing_size="lg",
        radius_size="lg",
        text_size="md",
        font=[gr.themes.GoogleFont("Inter"), "system-ui", "-apple-system", "BlinkMacSystemFont", "sans-serif"],
        font_mono=[gr.themes.GoogleFont("JetBrains Mono"), "ui-monospace", "monospace"],
    ).set(
        # Light mode base
        body_background_fill="*neutral_50",
        body_background_fill_dark="*neutral_950",
        body_text_color="*neutral_900",
        body_text_color_dark="*neutral_100",

        # Block styling
        block_background_fill="white",
        block_background_fill_dark="*neutral_900",
        block_border_width="0px",
        block_shadow="0 1px 3px 0 rgb(0 0 0 / 0.05)",
        block_shadow_dark="0 1px 3px 0 rgb(0 0 0 / 0.3)",
        block_label_background_fill="transparent",
        block_label_background_fill_dark="transparent",
        block_label_text_color="*neutral_600",
        block_label_text_color_dark="*neutral_400",
        block_title_text_color="*neutral_900",
        block_title_text_color_dark="*neutral_100",

        # Input styling
        input_background_fill="*neutral_100",
        input_background_fill_dark="*neutral_800",
        input_border_color="*neutral_200",
        input_border_color_dark="*neutral_700",
        input_border_color_focus="*neutral_400",
        input_border_color_focus_dark="*neutral_500",
        input_placeholder_color="*neutral_400",
        input_placeholder_color_dark="*neutral_500",

        # Primary button (filled, dark)
        button_primary_background_fill="*neutral_900",
        button_primary_background_fill_dark="white",
        button_primary_background_fill_hover="*neutral_800",
        button_primary_background_fill_hover_dark="*neutral_200",
        button_primary_text_color="white",
        button_primary_text_color_dark="*neutral_900",
        button_primary_border_color="transparent",
        button_primary_border_color_dark="transparent",

        # Secondary button (outlined)
        button_secondary_background_fill="transparent",
        button_secondary_background_fill_dark="transparent",
        button_secondary_background_fill_hover="*neutral_100",
        button_secondary_background_fill_hover_dark="*neutral_800",
        button_secondary_text_color="*neutral_700",
        button_secondary_text_color_dark="*neutral_300",
        button_secondary_border_color="*neutral_300",
        button_secondary_border_color_dark="*neutral_700",

        # Border and shadow
        border_color_primary="*neutral_200",
        border_color_primary_dark="*neutral_800",

        # Tab styling
        background_fill_secondary="*neutral_100",
        background_fill_secondary_dark="*neutral_800",
    )
    return theme

css = """
/* Apple-inspired CSS with full dark mode support */
/* Note: Inter font is loaded via Gradio theme settings */

/* CSS Variables for theming */
:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f5f5f7;
    --bg-tertiary: #fafafa;
    --bg-card: #ffffff;
    --bg-card-hover: #fafafa;
    --bg-glass: rgba(255, 255, 255, 0.72);

    --text-primary: #1d1d1f;
    --text-secondary: #6e6e73;
    --text-tertiary: #86868b;

    --border-color: rgba(0, 0, 0, 0.08);
    --border-color-strong: rgba(0, 0, 0, 0.12);

    --accent-blue: #0071e3;
    --accent-blue-hover: #0077ed;
    --accent-green: #30d158;
    --accent-orange: #ff9f0a;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);
    --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-card-hover: 0 8px 30px rgba(0, 0, 0, 0.12);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 9999px;

    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark mode variables */
.dark, [data-theme="dark"] {
    --bg-primary: #000000;
    --bg-secondary: #1c1c1e;
    --bg-tertiary: #2c2c2e;
    --bg-card: #1c1c1e;
    --bg-card-hover: #2c2c2e;
    --bg-glass: rgba(28, 28, 30, 0.72);

    --text-primary: #f5f5f7;
    --text-secondary: #a1a1a6;
    --text-tertiary: #6e6e73;

    --border-color: rgba(255, 255, 255, 0.08);
    --border-color-strong: rgba(255, 255, 255, 0.12);

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.4);
    --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.2), 0 0 1px rgba(255, 255, 255, 0.05);
    --shadow-card-hover: 0 8px 30px rgba(0, 0, 0, 0.4);
}

/* Also support system preference */
@media (prefers-color-scheme: dark) {
    :root:not(.light) {
        --bg-primary: #000000;
        --bg-secondary: #1c1c1e;
        --bg-tertiary: #2c2c2e;
        --bg-card: #1c1c1e;
        --bg-card-hover: #2c2c2e;
        --bg-glass: rgba(28, 28, 30, 0.72);

        --text-primary: #f5f5f7;
        --text-secondary: #a1a1a6;
        --text-tertiary: #6e6e73;

        --border-color: rgba(255, 255, 255, 0.08);
        --border-color-strong: rgba(255, 255, 255, 0.12);

        --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
        --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
        --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.4);
        --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.2), 0 0 1px rgba(255, 255, 255, 0.05);
        --shadow-card-hover: 0 8px 30px rgba(0, 0, 0, 0.4);
    }
}

/* Base styles */
* {
    box-sizing: border-box;
}

body, .gradio-container {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, sans-serif !important;
    background: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Main container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

/* Hero section */
.hero-section {
    text-align: center;
    padding: 3rem 1rem 2rem;
    margin-bottom: 1rem;
}

.hero-title {
    font-size: 2.75rem !important;
    font-weight: 700 !important;
    color: var(--text-primary) !important;
    letter-spacing: -0.025em !important;
    line-height: 1.1 !important;
    margin: 0 0 0.75rem 0 !important;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.125rem !important;
    color: var(--text-secondary) !important;
    font-weight: 400 !important;
    margin: 0 !important;
    max-width: 600px;
    margin: 0 auto !important;
}

/* Override Gradio h1 */
h1 {
    font-size: 2.5rem !important;
    font-weight: 700 !important;
    color: var(--text-primary) !important;
    letter-spacing: -0.025em !important;
    text-align: center !important;
    margin-bottom: 0.5rem !important;
}

/* Tab styling */
.tabs {
    border: none !important;
    background: transparent !important;
}

.tab-nav {
    background: var(--bg-card) !important;
    border-radius: var(--radius-lg) !important;
    padding: 6px !important;
    border: 1px solid var(--border-color) !important;
    display: inline-flex !important;
    gap: 4px !important;
    margin-bottom: 2rem !important;
}

.tab-nav button {
    background: transparent !important;
    border: none !important;
    border-radius: var(--radius-md) !important;
    padding: 0.625rem 1.25rem !important;
    font-size: 0.9375rem !important;
    font-weight: 500 !important;
    color: var(--text-secondary) !important;
    transition: all var(--transition-fast) !important;
    cursor: pointer !important;
}

.tab-nav button:hover {
    color: var(--text-primary) !important;
    background: var(--bg-secondary) !important;
}

.tab-nav button.selected {
    background: var(--bg-primary) !important;
    color: var(--text-primary) !important;
    box-shadow: var(--shadow-sm) !important;
}

/* Dataset Card */
.dataset-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 1.5rem;
    margin-bottom: 1rem;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.dataset-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-green));
    opacity: 0;
    transition: opacity var(--transition-base);
}

.dataset-card:hover {
    border-color: var(--border-color-strong);
    box-shadow: var(--shadow-card-hover);
    transform: translateY(-2px);
}

.dataset-card:hover::before {
    opacity: 1;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 0.75rem;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    line-height: 1.3;
    letter-spacing: -0.01em;
}

.card-badge {
    background: var(--bg-secondary);
    color: var(--text-secondary);
    padding: 0.375rem 0.875rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    white-space: nowrap;
    border: 1px solid var(--border-color);
}

.card-description {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.6;
    margin: 0 0 1.25rem 0;
}

.card-footer {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    flex-wrap: wrap;
}

/* Button styling */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    outline: none;
}

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

.btn-primary:hover {
    opacity: 0.85;
    transform: scale(1.02);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color-strong);
}

.btn-secondary:hover {
    background: var(--bg-secondary);
    border-color: var(--text-tertiary);
}

.btn-accent {
    background: var(--accent-blue);
    color: white;
}

.btn-accent:hover {
    background: var(--accent-blue-hover);
    transform: scale(1.02);
}

/* Price tag */
.price-tag {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: baseline;
    gap: 0.25rem;
}

.price-tag .currency {
    font-size: 0.875rem;
    font-weight: 500;
}

.price-tag .period {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    font-weight: 400;
}

.price-free {
    color: var(--accent-green);
}

/* Empty state */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-secondary);
}

.empty-state-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-state-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.empty-state-text {
    font-size: 0.9375rem;
    color: var(--text-secondary);
}

/* Admin section */
.admin-section {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.admin-section-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 1rem 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Form styling */
.form-group {
    margin-bottom: 1rem;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

/* Gradio component overrides */
.gradio-container .gr-button {
    border-radius: var(--radius-full) !important;
    font-weight: 500 !important;
    transition: all var(--transition-fast) !important;
}

.gradio-container .gr-button-primary {
    background: var(--text-primary) !important;
    border: none !important;
}

.gradio-container .gr-button-secondary {
    background: transparent !important;
    border: 1px solid var(--border-color-strong) !important;
    color: var(--text-primary) !important;
}

.gradio-container .gr-input,
.gradio-container .gr-text-input,
.gradio-container textarea {
    background: var(--bg-secondary) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: var(--radius-md) !important;
    color: var(--text-primary) !important;
    transition: all var(--transition-fast) !important;
}

.gradio-container .gr-input:focus,
.gradio-container .gr-text-input:focus,
.gradio-container textarea:focus {
    border-color: var(--accent-blue) !important;
    box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.15) !important;
}

.gradio-container .gr-box {
    background: var(--bg-card) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: var(--radius-lg) !important;
}

.gradio-container .gr-panel {
    background: var(--bg-card) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: var(--radius-lg) !important;
}

/* Group styling */
.gradio-container .gr-group {
    background: transparent !important;
    border: none !important;
    padding: 0 !important;
}

/* JSON viewer */
.gradio-container .gr-json {
    background: var(--bg-secondary) !important;
    border-radius: var(--radius-md) !important;
}

/* Markdown text color */
.gradio-container .prose {
    color: var(--text-primary) !important;
}

.gradio-container .prose h1,
.gradio-container .prose h2,
.gradio-container .prose h3 {
    color: var(--text-primary) !important;
}

.gradio-container .prose p {
    color: var(--text-secondary) !important;
}

/* Row and column spacing */
.gradio-container .gr-row {
    gap: 0.75rem !important;
}

/* Status message styling */
.status-success {
    background: rgba(48, 209, 88, 0.1);
    border: 1px solid rgba(48, 209, 88, 0.2);
    color: var(--accent-green);
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
}

.status-error {
    background: rgba(255, 69, 58, 0.1);
    border: 1px solid rgba(255, 69, 58, 0.2);
    color: #ff453a;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
}

/* Subscription card specific */
.subscription-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 1.25rem 1.5rem;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    transition: all var(--transition-base);
}

.subscription-card:hover {
    border-color: var(--border-color-strong);
    box-shadow: var(--shadow-card);
}

.subscription-info {
    flex: 1;
}

.subscription-dataset {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 0.25rem 0;
}

.subscription-meta {
    font-size: 0.8125rem;
    color: var(--text-tertiary);
    display: flex;
    gap: 1rem;
    align-items: center;
}

.subscription-status {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.25rem 0.625rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 500;
}

.subscription-status.active {
    background: rgba(48, 209, 88, 0.15);
    color: var(--accent-green);
}

.subscription-status.expired {
    background: rgba(255, 69, 58, 0.15);
    color: #ff453a;
}

/* Login card */
.login-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 2rem;
    max-width: 400px;
    margin: 2rem auto;
    text-align: center;
}

.login-card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 0.5rem 0;
}

.login-card-subtitle {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    margin: 0 0 1.5rem 0;
}

/* Stats grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    text-align: center;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.8125rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

/* Animation */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-in {
    animation: fadeIn 0.3s ease-out forwards;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem !important;
    }

    .hero-subtitle {
        font-size: 1rem !important;
    }

    .card-header {
        flex-direction: column;
        gap: 0.5rem;
    }

    .card-footer {
        flex-direction: column;
        align-items: stretch;
    }

    .subscription-card {
        flex-direction: column;
        align-items: stretch;
    }
}
"""