/* CSS Variables for theming */
:root {
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --primary-light: #e0e7ff;
    --secondary-color: #10b981;
    --accent-color: #f59e0b;
    --danger-color: #ef4444;
    --background: #0f172a;
    --surface: #1e293b;
    --surface-light: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --border-color: #475569;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -2px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -4px rgba(0, 0, 0, 0.2);
    --radius: 12px;
    --radius-sm: 8px;
    --transition: all 0.3s ease;
}

/* Reset and base styles */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* App Container */
.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    text-align: center;
    padding: 2rem 1rem;
    background: linear-gradient(135deg, var(--surface) 0%, var(--background) 100%);
    border-bottom: 1px solid var(--border-color);
}

.logo-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

.logo {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
}

.header h1 {
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tagline {
    color: var(--text-secondary);
    font-size: 1rem;
    max-width: 500px;
    margin: 0 auto;
}

/* Main Content */
.main-content {
    flex: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
    width: 100%;
}

/* Controls Section */
.controls-section {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 2rem;
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: flex-end;
    box-shadow: var(--shadow);
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    flex: 1;
    min-width: 150px;
}

.control-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.control-group select {
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    background: var(--surface-light);
    color: var(--text-primary);
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
}

.control-group select:hover,
.control-group select:focus {
    border-color: var(--primary-color);
    outline: none;
}

.generate-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    min-width: 200px;
}

.generate-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}

.generate-btn:active {
    transform: translateY(0);
}

.btn-icon {
    font-size: 1.25rem;
}

/* Scenario Section */
.scenario-section {
    margin-bottom: 2rem;
}

.scenario-placeholder {
    text-align: center;
    padding: 4rem 2rem;
    background: var(--surface);
    border-radius: var(--radius);
    border: 2px dashed var(--border-color);
}

.placeholder-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.scenario-placeholder p {
    color: var(--text-muted);
    font-size: 1.125rem;
}

/* Scenario Cards */
.scenario-content {
    display: grid;
    gap: 1.5rem;
}

.scenario-card {
    background: var(--surface);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    animation: fadeInUp 0.5s ease forwards;
    opacity: 0;
}

.scenario-card:nth-child(1) { animation-delay: 0.1s; }
.scenario-card:nth-child(2) { animation-delay: 0.2s; }
.scenario-card:nth-child(3) { animation-delay: 0.3s; }
.scenario-card:nth-child(4) { animation-delay: 0.4s; }
.scenario-card:nth-child(5) { animation-delay: 0.5s; }

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    background: var(--surface-light);
    border-bottom: 1px solid var(--border-color);
}

.card-icon {
    font-size: 1.5rem;
}

.card-header h2 {
    font-size: 1.125rem;
    font-weight: 600;
}

.card-body {
    padding: 1.5rem;
}

.card-body h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--primary-color);
}

.card-body p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Location Card Specific */
.location-details {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.detail-tag {
    display: inline-block;
    padding: 0.375rem 0.75rem;
    background: var(--surface-light);
    border-radius: 20px;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Characters Card Specific */
.characters-list {
    display: grid;
    gap: 1rem;
}

.character-item {
    padding: 1rem;
    background: var(--surface-light);
    border-radius: var(--radius-sm);
    border-left: 4px solid var(--primary-color);
}

.character-item:nth-child(2n) {
    border-left-color: var(--secondary-color);
}

.character-item:nth-child(3n) {
    border-left-color: var(--accent-color);
}

.character-name {
    font-weight: 600;
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
}

.character-role {
    color: var(--primary-color);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

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

.character-motivation {
    color: var(--text-muted);
    font-size: 0.875rem;
    font-style: italic;
    margin-top: 0.5rem;
}

/* Conflict Card Specific */
.stakes-container {
    margin-top: 1rem;
    padding: 0.75rem;
    background: var(--surface-light);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.stakes-label {
    font-weight: 600;
    color: var(--accent-color);
}

.stakes-value {
    color: var(--text-secondary);
}

/* Prompts Card Specific */
.prompts-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.prompts-list li {
    padding: 1rem;
    background: var(--surface-light);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    position: relative;
    padding-left: 2.5rem;
}

.prompts-list li::before {
    content: '💡';
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
}

/* Summary Card Specific */
.summary-card {
    background: linear-gradient(135deg, var(--surface) 0%, var(--surface-light) 100%);
}

.summary-card .card-body p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-primary);
}

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

.action-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-sm);
    border: none;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.copy-btn {
    background: var(--surface-light);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.copy-btn:hover {
    background: var(--border-color);
}

.regenerate-btn {
    background: var(--surface-light);
    color: var(--accent-color);
    border: 1px solid var(--accent-color);
}

.regenerate-btn:hover {
    background: var(--accent-color);
    color: var(--background);
}

.save-btn {
    background: var(--secondary-color);
    color: white;
}

.save-btn:hover {
    background: #0d9668;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 1rem;
}

.modal-content {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 2rem;
    max-width: 400px;
    width: 100%;
    text-align: center;
}

.modal-content h3 {
    margin-bottom: 1.5rem;
    font-size: 1.25rem;
}

.modal-buttons {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.modal-btn {
    padding: 1rem;
    background: var(--surface-light);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
}

.modal-btn:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.modal-close {
    padding: 0.75rem 2rem;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--surface-light);
}

/* History Section */
.history-section {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
}

.history-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.history-header h2 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.25rem;
}

.clear-history-btn {
    padding: 0.5rem 1rem;
    background: transparent;
    border: 1px solid var(--danger-color);
    border-radius: var(--radius-sm);
    color: var(--danger-color);
    font-size: 0.875rem;
    cursor: pointer;
    transition: var(--transition);
}

.clear-history-btn:hover {
    background: var(--danger-color);
    color: white;
}

.history-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-height: 400px;
    overflow-y: auto;
}

.history-empty {
    text-align: center;
    color: var(--text-muted);
    padding: 2rem;
}

.history-item {
    padding: 1rem;
    background: var(--surface-light);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
}

.history-item:hover {
    background: var(--border-color);
}

.history-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.history-item-title {
    font-weight: 600;
    color: var(--primary-color);
}

.history-item-date {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.history-item-preview {
    font-size: 0.875rem;
    color: var(--text-secondary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.history-item-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.75rem;
}

.history-action-btn {
    padding: 0.375rem 0.75rem;
    background: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.75rem;
    cursor: pointer;
    transition: var(--transition);
}

.history-action-btn:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.history-action-btn.delete:hover {
    background: var(--danger-color);
    border-color: var(--danger-color);
}

/* Footer */
.footer {
    text-align: center;
    padding: 1.5rem;
    background: var(--surface);
    border-top: 1px solid var(--border-color);
}

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

.footer a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.footer a:hover {
    color: var(--secondary-color);
    text-decoration: underline;
}

/* Toast Notification */
.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--surface-light);
    color: var(--text-primary);
    padding: 1rem 2rem;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    z-index: 1001;
    opacity: 0;
    transition: all 0.3s ease;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.toast.success {
    border-left: 4px solid var(--secondary-color);
}

.toast.error {
    border-left: 4px solid var(--danger-color);
}

/* Responsive Design */
@media (max-width: 768px) {
    .header {
        padding: 1.5rem 1rem;
    }

    .header h1 {
        font-size: 1.5rem;
    }

    .logo-container {
        flex-direction: column;
        gap: 0.5rem;
    }

    .tagline {
        font-size: 0.875rem;
    }

    .controls-section {
        flex-direction: column;
    }

    .control-group {
        width: 100%;
    }

    .generate-btn {
        width: 100%;
    }

    .modal-buttons {
        grid-template-columns: 1fr;
    }

    .action-buttons {
        flex-direction: column;
    }

    .action-btn {
        width: 100%;
        justify-content: center;
    }

    .history-header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    .main-content {
        padding: 1rem 0.75rem;
    }

    .card-header {
        padding: 0.75rem 1rem;
    }

    .card-body {
        padding: 1rem;
    }

    .character-item {
        padding: 0.75rem;
    }
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--surface);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* Selection Styling */
::selection {
    background: var(--primary-color);
    color: white;
}