/* AMOLED Dark Theme Variables */
[data-theme="default-dark"] {
    --bg-primary: #000000;
    --bg-secondary: #0a0a0a;
    --bg-tertiary: #111111;
    --bg-card: #000000;
    --bg-hover: #222222;
    --bg-active: #2a2a2a;
    --text-primary: #ffffff;
    --text-secondary: #cccccc;
    --text-muted: #888888;
    --text-accent: #f0f0f0;
    --accent-primary: #ffffff;
    --accent-secondary: #e0e0e0;
    --border: #333333;
    --border-light: #2a2a2a;
    --shadow: rgba(255, 255, 255, 0.05);
    --shadow-medium: rgba(255, 255, 255, 0.1);
    --shadow-heavy: rgba(255, 255, 255, 0.15);
    --success: #00ff88;
    --warning: #ffaa00;
    --danger: #ff4444;
    --danger-hover: #ff6666;
    --info: #00aaff;
    --gradient-primary: linear-gradient(135deg, #000000 0%, #111111 100%);
    --gradient-card: linear-gradient(135deg, #000000 0%, #111111 100%);
}

/* Default Light Theme Variables */
[data-theme="default-light"] {
    --bg-primary: #ffffff;
    --bg-secondary: #f5f5f5;
    --bg-tertiary: #e0e0e0;
    --bg-card: #f5f5f5;
    --bg-hover: #d0d0d0;
    --bg-active: #c0c0c0;
    --text-primary: #000000;
    --text-secondary: #333333;
    --text-muted: #666666;
    --text-accent: #111111;
    --accent-primary: #000000;
    --accent-secondary: #1a1a1a;
    --border: #cccccc;
    --border-light: #d0d0d0;
    --shadow: rgba(0, 0, 0, 0.05);
    --shadow-medium: rgba(0, 0, 0, 0.1);
    --shadow-heavy: rgba(0, 0, 0, 0.15);
    --success: #008000;
    --warning: #cc9900;
    --danger: #cc0000;
    --danger-hover: #e05252;
    --info: #006666;
    --gradient-primary: linear-gradient(135deg, #ffffff 0%, #f5f5f5 100%);
    --gradient-card: linear-gradient(135deg, #e0e0e0 0%, #f5f5f5 100%);
}

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

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
}

/* Header */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: 16px 20px;
    backdrop-filter: blur(10px);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
}

.header-title {
    display: flex;
    align-items: center;
    gap: 12px;
}

.header-title h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.header-icon {
    font-size: 1.75rem;
    color: var(--accent-primary);
}

.header-actions {
    display: flex;
    gap: 8px;
}

.header-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.1rem;
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    transition: all 0.2s ease;
}

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

/* Main Container */
.main-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px 20px;
    min-height: calc(100vh - 80px);
}

/* New Prompt Section */
.new-prompt-section {
    margin-bottom: 32px;
}

.new-prompt-btn {
    width: 100%;
    max-width: 400px;
    padding: 16px 24px;
    background: var(--gradient-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.new-prompt-btn:hover {
    background: var(--bg-hover);
    border-color: var(--accent-primary);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--shadow-medium);
}

.new-prompt-btn:active {
    transform: translateY(-1px);
}

.new-prompt-btn i {
    font-size: 1.2rem;
}

/* Search & Filter */
.controls-section {
    margin-bottom: 24px;
}

.filters-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
}

.search-container {
    position: relative;
    flex: 1;
    min-width: 250px;
    margin-bottom: 16px;
}

.search-input {
    width: 100%;
    padding: 14px 44px 14px 48px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    outline: none;
    transition: all 0.2s ease;
}

.search-input:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--shadow);
}

.search-input::placeholder {
    color: var(--text-muted);
}

.search-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 1rem;
}

.search-clear-btn {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 0.95rem;
    cursor: pointer;
    padding: 4px;
    border-radius: 50%;
    display: none;
}

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

.search-clear-btn.visible {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.filter-tags {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding: 4px 0;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.filter-tags::-webkit-scrollbar {
    display: none;
}

.filter-tag {
    flex-shrink: 0;
    padding: 8px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 20px;
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.filter-tag:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.filter-tag.active {
    background: var(--accent-primary);
    color: var(--bg-primary);
    border-color: var(--accent-primary);
}

.sort-container {
    display: flex;
    align-items: center;
    gap: 8px;
}

.sort-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.sort-select {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 8px 12px;
    font-size: 0.9rem;
    cursor: pointer;
    outline: none;
}

/* Prompts Grid */
.prompts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
    padding-bottom: 40px;
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    min-height: 50vh;
    gap: 24px;
    color: var(--text-muted);
}

.empty-icon {
    font-size: 4rem;
    opacity: 0.5;
}

.empty-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.empty-text {
    font-size: 1.1rem;
    max-width: 500px;
}

/* Prompt Card */
.prompt-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    position: relative;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    animation: fadeIn 0.4s ease-out forwards;
    box-shadow: 0 4px 15px var(--shadow);
}

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

.prompt-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px var(--shadow-medium);
}

.prompt-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.prompt-title {
    font-size: 1.25rem;
    font-weight: 600;
}

.prompt-meta {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.prompt-preview {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.5;
    flex: 1;
}

.prompt-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 4px;
}

.prompt-tag {
    background: var(--bg-tertiary);
    color: var(--text-muted);
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 500;
}

.prompt-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    margin-top: 8px;
}

.action-btn {
    padding: 10px 18px;
    border-radius: 8px;
    border: none;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s ease;
}

.action-btn {
    transition: all 0.2s ease;
}

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

.action-btn.primary:hover {
    background: var(--accent-secondary);
}

.action-btn.secondary {
    background: var(--bg-hover);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.action-btn.secondary:hover {
    background: var(--bg-active);
}

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

.action-btn.danger:hover {
    background: var(--danger-hover);
}

/* Modals */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    display: none;
}

.modal.active {
    display: block;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.modal-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.95);
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 16px;
    max-width: 700px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal.active .modal-content {
    transform: translate(-50%, -50%) scale(1);
}

.modal-header {
    padding: 24px 24px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.close-modal {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 4px;
    border-radius: 50%;
    transition: all 0.2s ease;
}

.close-modal:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.modal-body {
    padding: 24px;
}

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

/* Prompt Detail specific styles */
.modal-prompt-content {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 16px;
    white-space: pre-wrap;
    font-family: monospace;
    font-size: 0.9rem;
    line-height: 1.5;
}

.modal-prompt-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
}

/* Form Styles */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    outline: none;
    transition: border-color 0.2s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent-primary);
}

.form-group textarea {
    resize: vertical;
}

.ai-output {
    min-height: 180px;
    background: var(--bg-card);
}

.ai-output[readonly] {
    color: var(--text-primary);
}

.ai-modal-actions {
    flex-wrap: wrap;
}

.ai-generate-btn {
    margin-right: auto;
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    margin-top: 24px;
}

/* Notification Styles */
.notification-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 2000;
}

.notification {
    padding: 16px 20px;
    border-radius: 10px;
    color: var(--bg-primary);
    font-weight: 500;
    min-width: 250px;
    animation: slideIn 0.3s ease-out forwards;
}

@keyframes slideIn {
    from {
        transform: translateX(120%);
    }
    to {
        transform: translateX(0);
    }
}

.notification.success {
    background: var(--success);
}

.notification.error {
    background: var(--danger);
}

.form-select {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    outline: none;
    transition: border-color 0.2s ease;
}

.form-select:focus {
    border-color: var(--accent-primary);
}

.fa-spinner.fa-spin {
    margin-right: 8px;
}

@media (max-width: 768px) {
    .header-title h1 {
        font-size: 1.2rem;
    }

    .main-container {
        padding: 16px;
    }

    .prompts-grid {
        grid-template-columns: 1fr;
    }
}

/* Feature: Tag + Sort controls row */
.controlsRow {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    align-items: end;
    max-width: 100%;
}

.controlGroup {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
}

.controlGroup .sort-label {
    margin-bottom: 0;
    white-space: nowrap;
}

.controlGroup .sort-select {
    width: 100%;
    flex: 1;
    min-width: 0;
}

@media (max-width: 360px) {
    .controlsRow {
        grid-template-columns: 1fr;
    }
}

/* Feature: Import / Export modal layout + tabs */
.import-export-content {
    width: min(92vw, 520px);
    max-width: 520px;
    max-height: 85vh;
    overflow-y: auto;
    overflow-x: hidden;
}

.import-export-tabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 16px;
}

.tab-btn {
    border: none;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    padding: 10px 12px;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 600;
    transition: all 0.2s ease;
}

.tab-btn.active {
    background: var(--accent-secondary);
    color: var(--bg-primary);
}

.tab-btn:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
}

.import-export-section {
    display: none;
}

.import-export-section.active {
    display: block;
}

.section-title {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.export-actions {
    display: flex;
    gap: 12px;
    flex-direction: column;
}

.import-actions {
    margin-top: 12px;
}

.import-actions .action-btn,
.export-actions .action-btn {
    width: 100%;
}

.form-group .option-row {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-primary);
    font-size: 0.95rem;
    line-height: 1.4;
    margin-top: 10px;
    cursor: pointer;
    width: fit-content;
    max-width: 100%;
    white-space: nowrap;
}

.option-row--reverse {
    flex-direction: row-reverse;
    justify-content: flex-end;
}

.file-input-row {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 8px;
}

.file-name {
    flex: 1;
    min-width: 0;
    font-size: 0.9rem;
    color: var(--text-muted);
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    padding: 10px 12px;
    border-radius: 10px;
}

.helper-text {
    margin-top: 8px;
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.4;
}

.import-summary {
    margin-top: 16px;
    padding: 12px 14px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
}

.import-summary.is-hidden {
    display: none;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

/* Feature: Overflow guardrails */
.main-container {
    width: 100%;
}

.prompts-grid {
    overflow-x: hidden;
}

.prompt-card {
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    overflow: hidden;
}

@media (max-width: 480px) {
    .prompts-grid {
        grid-template-columns: 1fr;
    }

    .prompt-preview {
        display: none;
    }
}