/* Material Design Custom Styles with Theme Support */

:root {
    /* Default Indigo Theme */
    --primary-color: #3f51b5;
    --primary-dark: #303f9f;
    --primary-light: #c5cae9;
    --accent-color: #ff4081;
    --accent-dark: #c60055;
    --accent-light: #ff80ab;
    --text-primary: #212121;
    --text-secondary: #757575;
    --divider-color: #bdbdbd;
    --background-color: #fafafa;
    --surface-color: #ffffff;
    --error-color: #f44336;
    --success-color: #4caf50;
}

/* Blue Ocean Theme */
[data-theme="blue"] {
    --primary-color: #2196f3;
    --primary-dark: #1976d2;
    --primary-light: #bbdefb;
    --accent-color: #ff9800;
    --accent-dark: #f57c00;
    --accent-light: #ffcc02;
}

/* Forest Green Theme */
[data-theme="green"] {
    --primary-color: #4caf50;
    --primary-dark: #388e3c;
    --primary-light: #c8e6c9;
    --accent-color: #ff5722;
    --accent-dark: #d84315;
    --accent-light: #ff8a65;
}

/* Royal Purple Theme */
[data-theme="purple"] {
    --primary-color: #9c27b0;
    --primary-dark: #7b1fa2;
    --primary-light: #e1bee7;
    --accent-color: #ffeb3b;
    --accent-dark: #fbc02d;
    --accent-light: #fff59d;
}

/* Sunset Orange Theme */
[data-theme="orange"] {
    --primary-color: #ff9800;
    --primary-dark: #f57c00;
    --primary-light: #ffe0b2;
    --accent-color: #e91e63;
    --accent-dark: #c2185b;
    --accent-light: #f8bbd9;
}

/* Dark Mode Theme */
[data-theme="dark"] {
    --primary-color: #bb86fc;
    --primary-dark: #3700b3;
    --primary-light: #cf6679;
    --accent-color: #03dac6;
    --accent-dark: #018786;
    --accent-light: #80e5d9;
    --text-primary: #ffffff;
    --text-secondary: #b3b3b3;
    --divider-color: #444444;
    --background-color: #121212;
    --surface-color: #1e1e1e;
    --error-color: #cf6679;
    --success-color: #4caf50;
}

* {
    box-sizing: border-box;
}

body {
    font-family: 'Roboto', sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--background-color);
    color: var(--text-primary);
    line-height: 1.6;
}

/* Header Styles */
.mdl-layout__header {
    background-color: var(--primary-color);
}

.mdl-layout-title {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 500;
}

.mdl-layout-title .material-icons {
    font-size: 28px;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 16px;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 64px 0;
    text-align: center;
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 300;
    margin: 0 0 16px 0;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.2rem;
    font-weight: 400;
    margin: 0;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

/* Main Content */
.main-content {
    padding: 32px 0;
}

/* Card Styles */
.mdl-card {
    width: 100%;
    margin-bottom: 24px;
    border-radius: 8px;
    transition: box-shadow 0.3s ease;
}

.mdl-card:hover {
    box-shadow: 0 8px 16px rgba(0,0,0,0.15);
}

.mdl-card__title {
    background-color: var(--surface-color);
    border-bottom: 1px solid var(--divider-color);
}

.mdl-card__title-text {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--primary-color);
    font-weight: 500;
}

.mdl-card__title-text .material-icons {
    font-size: 24px;
}

/* Prompt Type Card */
.prompt-type-card .mdl-card__supporting-text {
    padding: 24px;
}

.prompt-types {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.mdl-radio {
    margin: 8px 0;
}

/* Input Card */
.input-card .mdl-card__supporting-text {
    padding: 24px;
}

.input-field {
    width: 100%;
    margin-bottom: 24px;
}

.input-field .mdl-textfield__input {
    border-radius: 4px;
    font-size: 16px;
    line-height: 1.5;
    resize: vertical;
    min-height: 120px;
}

.options-section {
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--divider-color);
}

.options-section h4 {
    color: var(--text-secondary);
    font-weight: 500;
    margin: 0 0 16px 0;
}

.option-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}

/* Output Card */
.output-card {
    animation: slideUp 0.3s ease-out;
}

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

.prompt-output {
    background-color: #f8f9fa;
    border: 1px solid var(--divider-color);
    border-radius: 8px;
    padding: 24px;
    font-family: 'Roboto Mono', monospace;
    font-size: 14px;
    line-height: 1.6;
    white-space: pre-wrap;
    max-height: 400px;
    overflow-y: auto;
    position: relative;
}

.prompt-output::before {
    content: 'Generated Prompt';
    position: absolute;
    top: -12px;
    left: 16px;
    background-color: var(--surface-color);
    padding: 0 8px;
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 500;
}

/* History Card */
.history-list {
    max-height: 400px;
    overflow-y: auto;
}

.history-item {
    border: 1px solid var(--divider-color);
    border-radius: 8px;
    margin-bottom: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.history-item:hover {
    border-color: var(--primary-color);
    box-shadow: 0 2px 8px rgba(63, 81, 181, 0.15);
}

.history-item-header {
    background-color: #f8f9fa;
    padding: 16px;
    border-bottom: 1px solid var(--divider-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.history-item-title {
    font-weight: 500;
    color: var(--text-primary);
    margin: 0;
}

.history-item-date {
    font-size: 12px;
    color: var(--text-secondary);
}

.history-item-content {
    padding: 16px;
    font-family: 'Roboto Mono', monospace;
    font-size: 13px;
    line-height: 1.5;
    background-color: var(--surface-color);
}

.history-item-actions {
    padding: 8px 16px;
    background-color: #f8f9fa;
    border-top: 1px solid var(--divider-color);
    text-align: right;
}

/* Button Styles */
.mdl-button {
    border-radius: 4px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.mdl-button--raised {
    box-shadow: 0 2px 4px rgba(0,0,0,0.15);
}

.mdl-button--raised:hover {
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.mdl-button .material-icons {
    margin-right: 8px;
    font-size: 18px;
}

/* Floating Action Button */
.fab-new-prompt {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 1000;
    background-color: var(--accent-color);
    box-shadow: 0 4px 12px rgba(255, 64, 129, 0.3);
}

.fab-new-prompt:hover {
    background-color: var(--accent-dark);
    box-shadow: 0 6px 16px rgba(255, 64, 129, 0.4);
}

/* Snackbar Customization */
.mdl-snackbar {
    border-radius: 4px;
}

.mdl-snackbar--success {
    background-color: var(--success-color);
}

.mdl-snackbar--error {
    background-color: var(--error-color);
}

/* Loading Animation */
.loading {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.loading::after {
    content: '';
    width: 16px;
    height: 16px;
    border: 2px solid var(--primary-color);
    border-top: 2px solid transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .option-row {
        grid-template-columns: 1fr;
    }
    
    .prompt-types {
        grid-template-columns: 1fr;
    }
    
    .container {
        padding: 0 12px;
    }
    
    .mdl-card__supporting-text {
        padding: 16px;
    }
    
    .fab-new-prompt {
        bottom: 16px;
        right: 16px;
    }
}

@media (max-width: 480px) {
    .hero-section {
        padding: 48px 0;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .mdl-card__actions {
        flex-direction: column;
        gap: 8px;
    }
    
    .mdl-card__actions .mdl-button {
        width: 100%;
        margin: 0;
    }
}

/* Accessibility Improvements */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus Styles */
.mdl-button:focus,
.mdl-textfield__input:focus,
.mdl-radio__button:focus + .mdl-radio__label::before {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #000080;
        --accent-color: #800080;
        --text-primary: #000000;
        --text-secondary: #404040;
        --divider-color: #808080;
    }
}

/* Theme Selection Dialog Styles */
.theme-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin: 16px 0;
}

.theme-option {
    margin: 0;
    padding: 16px;
    border: 2px solid transparent;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.theme-option:hover {
    background-color: rgba(0,0,0,0.05);
    border-color: var(--primary-color);
}

.theme-option .mdl-radio__label {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    width: 100%;
}

.theme-preview {
    display: flex;
    width: 80px;
    height: 40px;
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.theme-color-primary,
.theme-color-accent {
    flex: 1;
    height: 100%;
}

/* Theme Preview Colors */
.indigo-theme .theme-color-primary { background-color: #3f51b5; }
.indigo-theme .theme-color-accent { background-color: #ff4081; }

.blue-theme .theme-color-primary { background-color: #2196f3; }
.blue-theme .theme-color-accent { background-color: #ff9800; }

.green-theme .theme-color-primary { background-color: #4caf50; }
.green-theme .theme-color-accent { background-color: #ff5722; }

.purple-theme .theme-color-primary { background-color: #9c27b0; }
.purple-theme .theme-color-accent { background-color: #ffeb3b; }

.orange-theme .theme-color-primary { background-color: #ff9800; }
.orange-theme .theme-color-accent { background-color: #e91e63; }

.dark-theme .theme-color-primary { background-color: #bb86fc; }
.dark-theme .theme-color-accent { background-color: #03dac6; }

/* Theme Modal Styling */
.theme-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.6);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.theme-modal-overlay.show {
    opacity: 1;
}

.theme-modal {
    background-color: var(--surface-color);
    border-radius: 8px;
    min-width: 400px;
    max-width: 600px;
    max-height: 90vh;
    overflow: hidden;
    box-shadow: 0 24px 38px 3px rgba(0,0,0,0.14), 0 9px 46px 8px rgba(0,0,0,0.12), 0 11px 15px -7px rgba(0,0,0,0.20);
    transform: scale(0.8);
    transition: transform 0.3s ease;
}

.theme-modal-overlay.show .theme-modal {
    transform: scale(1);
}

.theme-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px 16px;
    border-bottom: 1px solid var(--divider-color);
}

.theme-modal-header h4 {
    margin: 0;
    color: var(--primary-color);
    font-size: 1.5rem;
    font-weight: 400;
}

.theme-modal-close {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 8px;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.theme-modal-close:hover {
    background-color: rgba(0,0,0,0.1);
    color: var(--text-primary);
}

.theme-modal-content {
    padding: 20px 24px;
    max-height: 60vh;
    overflow-y: auto;
}

.theme-modal-actions {
    padding: 16px 24px;
    border-top: 1px solid var(--divider-color);
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

/* Responsive Theme Modal */
@media (max-width: 600px) {
    .theme-modal {
        min-width: 90vw;
        margin: 5vh;
    }
    
    .theme-options {
        grid-template-columns: 1fr;
    }
    
    .theme-modal-header {
        padding: 16px 20px 12px;
    }
    
    .theme-modal-content {
        padding: 16px 20px;
    }
    
    .theme-modal-actions {
        padding: 12px 20px;
    }
}

/* Print Styles */
@media print {
    .mdl-layout__header,
    .fab-new-prompt,
    .mdl-card__actions {
        display: none;
    }
    
    .mdl-card {
        box-shadow: none;
        border: 1px solid #ccc;
        page-break-inside: avoid;
    }
    
    .prompt-output {
        background-color: transparent;
        border: 1px solid #ccc;
    }
}