/* CSS Custom Properties for Themes */
:root {
    /* Dark theme (default) */
    --bg-primary: #0a0a0a;
    --bg-secondary: #1a1a1a;
    --bg-container: #1a1a1a;
    --bg-main: #0a0a0a;
    --text-primary: #00ffcc;
    --text-secondary: #FFFFFF;
    --text-muted: #9CA3AF;
    --accent-color: #00ffcc;
    --border-color: #00ffcc;
    --shadow-color: #00ffcc;
    --input-bg: #1a1a1a;
    --button-primary-bg: #00ffcc;
    --button-primary-text: #0a0a0a;
    --button-secondary-bg: #0a0a0a;
    --button-secondary-text: #00ffcc;
    --card-bg: #1a1a1a;
    --card-hover-bg: #0a0a0a;
    --gradient-start: #7C3AED;
    --gradient-end: #00C4FF;
    --success-color: #10B981;
    --error-bg: #fef2f2;
    --error-border: #fecaca;
    --error-text: #dc2626;
    --upload-border: #333333;
    --upload-hover: #444444;
}

[data-theme="light"] {
    /* Light theme */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-container: #ffffff;
    --bg-main: #f8fafc;
    --text-primary: #1e293b;
    --text-secondary: #334155;
    --text-muted: #64748b;
    --accent-color: #3b82f6;
    --border-color: #e2e8f0;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --input-bg: #ffffff;
    --button-primary-bg: #3b82f6;
    --button-primary-text: #ffffff;
    --button-secondary-bg: #ffffff;
    --button-secondary-text: #3b82f6;
    --card-bg: #ffffff;
    --card-hover-bg: #f8fafc;
    --gradient-start: #3b82f6;
    --gradient-end: #06b6d4;
    --success-color: #059669;
    --error-bg: #fef2f2;
    --error-border: #fecaca;
    --error-text: #dc2626;
    --upload-border: #d1d5db;
    --upload-hover: #f3f4f6;
}

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

body {
    font-family: 'Courier New', 'Monaco', 'Consolas', monospace;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    margin: 0;
    padding: 0;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem 1rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--bg-container);
    border: 2px solid var(--border-color);
    box-shadow: 0 0 20px var(--shadow-color);
    border-radius: 8px;
    margin-top: 2rem;
    margin-bottom: 2rem;
    transition: all 0.3s ease;
}

/* Header Styles */
.header {
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-primary);
    position: relative;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 2rem;
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.brand-tagline {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.brand-link {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.brand-link:hover {
    color: var(--text-primary);
}

.theme-toggle {
    background: var(--button-secondary-bg);
    border: 2px solid var(--border-color);
    color: var(--button-secondary-text);
    padding: 0.5rem;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.theme-toggle:hover {
    background: var(--accent-color);
    color: var(--button-primary-text);
    transform: scale(1.05);
}

.title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
    font-weight: 400;
    max-width: 600px;
    margin: 0 auto;
}

/* Main Content */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.input-section {
    background: var(--bg-container);
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 6px var(--shadow-color);
}

/* Template Section */
.template-section {
    margin-bottom: 2rem;
}

.template-label {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.template-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 0.5rem;
    max-height: 400px;
    overflow-y: auto;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--input-bg);
}

.template-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0.5rem;
    background: var(--button-secondary-bg);
    color: var(--button-secondary-text);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.8rem;
    font-weight: 500;
    min-height: 120px;
    font-family: inherit;
}

.template-btn:hover {
    background: var(--card-hover-bg);
    border-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 255, 204, 0.2);
}

.template-btn.active {
    background: var(--accent-color);
    color: var(--button-primary-text);
    border-color: var(--accent-color);
}

.template-image {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: 4px;
    margin-bottom: 0.5rem;
    border: 1px solid var(--border-color);
}

.template-emoji {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    line-height: 1;
}

.template-name {
    text-align: center;
    line-height: 1.2;
    font-size: 0.75rem;
}

/* Input Group */
.input-group {
    margin-bottom: 2rem;
}

.input-label {
    display: block;
    font-size: 1.1rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.topic-input {
    width: 100%;
    padding: 1rem;
    font-size: 1rem;
    background: var(--input-bg);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: inherit;
    transition: all 0.3s ease;
}

.topic-input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(0, 255, 204, 0.1);
}

/* Flavor Picker */
.flavor-picker {
    margin-bottom: 2rem;
}

.options-label {
    font-size: 1.1rem;
    font-weight: 500;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.flavor-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 1rem;
}

.flavor-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1.25rem 1rem;
    background: var(--button-secondary-bg);
    color: var(--button-secondary-text);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    font-weight: 500;
    text-align: center;
    font-family: inherit;
}

.flavor-btn:hover {
    background: var(--card-hover-bg);
    border-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 255, 204, 0.2);
}

.flavor-btn.active {
    background: var(--accent-color);
    color: var(--button-primary-text);
    border-color: var(--accent-color);
}

.flavor-btn .emoji {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.flavor-name {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.flavor-desc {
    font-size: 0.8rem;
    opacity: 0.8;
}


/* Turnstile Section */
.turnstile-section {
    display: flex;
    justify-content: center;
    margin-bottom: 2rem;
    padding: 1rem;
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.turnstile-section:hover {
    border-color: var(--accent-color);
    box-shadow: 0 0 15px rgba(0, 255, 204, 0.1);
}

/* Action Buttons */
.action-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.generate-btn {
    background: var(--button-primary-bg);
    color: var(--button-primary-text);
    border: 2px solid var(--button-primary-bg);
    padding: 1rem 2rem;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 200px;
    font-family: inherit;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.generate-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 255, 204, 0.3);
}

.generate-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.surprise-btn {
    background: var(--button-secondary-bg);
    color: var(--button-secondary-text);
    border: 2px solid var(--border-color);
    padding: 1rem 2rem;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: inherit;
    min-width: 180px;
    justify-content: center;
}

.surprise-btn:hover {
    background: var(--accent-color);
    color: var(--button-primary-text);
    border-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 255, 204, 0.3);
}

/* Output Section */
.output-section {
    background: var(--bg-container);
    padding: 2rem;
    border-radius: 8px;
    border: 2px solid var(--border-color);
    box-shadow: 0 0 20px rgba(0, 255, 204, 0.1);
}

.output-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    text-align: center;
}

.results-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.caption-card {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    transition: all 0.3s ease;
}

.caption-card:hover {
    background: var(--card-hover-bg);
    border-color: var(--accent-color);
    box-shadow: 0 0 15px rgba(0, 255, 204, 0.2);
}

.caption-content {
    flex: 1;
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-primary);
    font-weight: 500;
}

.copy-btn {
    background: var(--button-secondary-bg);
    color: var(--button-secondary-text);
    border: 2px solid var(--border-color);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    white-space: nowrap;
    font-family: inherit;
    font-weight: 500;
}

.copy-btn:hover {
    background: var(--accent-color);
    color: var(--button-primary-text);
    border-color: var(--accent-color);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 255, 204, 0.2);
}

.copy-btn.copied {
    background: var(--success-color);
    color: white;
    border-color: var(--success-color);
}

/* Error Messages */
.error-message {
    background: var(--error-bg);
    border: 1px solid var(--error-border);
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1rem;
}

.error-content {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--error-text);
}

.error-icon {
    font-size: 1.2rem;
}

.error-content button {
    background: var(--error-text);
    color: white;
    border: 2px solid var(--error-text);
    padding: 0.25rem 0.5rem;
    border-radius: 8px;
    cursor: pointer;
    margin-left: auto;
    font-family: inherit;
    font-weight: 500;
    transition: all 0.3s ease;
}

/* Footer */
.footer {
    text-align: center;
    padding: 2rem 0;
    border-top: 2px solid var(--border-color);
    margin-top: 2rem;
}

.powered-by {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.footer-link {
    color: var(--accent-color);
    text-decoration: none;
    transition: opacity 0.3s ease;
}

.footer-link:hover {
    color: var(--text-primary);
}

.return-link {
    font-size: 0.9rem;
}

.return-link-text {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.3s ease;
}

.return-link-text:hover {
    color: var(--accent-color);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .template-grid {
        grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
        gap: 0.6rem;
    }

    .flavor-buttons {
        grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    }
}

@media (max-width: 768px) {
    .container {
        padding: 1rem;
        margin-top: 1rem;
        margin-bottom: 1rem;
    }

    .title {
        font-size: 2rem;
    }

    .subtitle {
        font-size: 1rem;
    }

    .input-section {
        padding: 1.5rem;
    }

    .template-grid {
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
        max-height: 350px;
        gap: 0.4rem;
    }

    .template-btn {
        min-height: 100px;
        padding: 0.4rem;
    }

    .template-image {
        width: 50px;
        height: 50px;
    }

    .template-name {
        font-size: 0.7rem;
    }

    .flavor-buttons {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
        gap: 0.75rem;
    }

    .flavor-btn {
        padding: 1rem 0.75rem;
    }

    .action-buttons {
        flex-direction: column;
        align-items: center;
    }

    .generate-btn,
    .surprise-btn {
        width: 100%;
        max-width: 300px;
    }

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

    .copy-btn {
        align-self: flex-end;
    }
}

@media (max-width: 480px) {
    .header {
        padding: 1rem 0;
    }

    .header-top {
        flex-direction: column;
        gap: 1rem;
        align-items: center;
        margin-bottom: 1.5rem;
    }

    .title {
        font-size: 1.8rem;
    }

    .subtitle {
        font-size: 0.9rem;
    }

    .input-section {
        padding: 1rem;
    }

    .template-grid {
        grid-template-columns: repeat(auto-fit, minmax(85px, 1fr));
        max-height: 280px;
        gap: 0.3rem;
        padding: 0.4rem;
    }

    .template-btn {
        min-height: 85px;
        padding: 0.3rem;
    }

    .template-image {
        width: 35px;
        height: 35px;
    }

    .template-name {
        font-size: 0.65rem;
        line-height: 1.1;
    }

    .flavor-buttons {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }

    .flavor-btn {
        padding: 0.75rem;
    }

    .flavor-name {
        font-size: 0.9rem;
    }

    .flavor-desc {
        font-size: 0.75rem;
    }
}