/* PromptShelf - Styles */

/* CSS Custom Properties */
:root {
    /* Colors - Light Mode */
    --bg-primary: rgba(255, 255, 255, 0.7);
    --bg-secondary: rgba(255, 255, 255, 0.5);
    --bg-tertiary: rgba(255, 255, 255, 0.3);
    --bg-solid: #ffffff;
    --text-primary: #1a1a2e;
    --text-secondary: #4a4a68;
    --text-muted: #8888a0;
    --border-color: rgba(255, 255, 255, 0.6);
    --accent-color: #667eea;
    --accent-hover: #5a67d8;
    --accent-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --danger-color: #f56565;
    --danger-hover: #e53e3e;
    --success-color: #48bb78;
    --warning-color: #ecc94b;

    /* Glass effect */
    --glass-bg: rgba(255, 255, 255, 0.65);
    --glass-border: rgba(255, 255, 255, 0.5);
    --glass-shadow: 0 8px 32px rgba(31, 38, 135, 0.15);
    --blur-amount: 12px;

    /* Gradient backgrounds */
    --gradient-bg: linear-gradient(135deg, #e0e5ec 0%, #f5f7fa 50%, #e8ecf1 100%);

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(31, 38, 135, 0.08);
    --shadow-md: 0 4px 16px rgba(31, 38, 135, 0.12);
    --shadow-lg: 0 8px 32px rgba(31, 38, 135, 0.18);

    /* Spacing */
    --sidebar-width: 280px;
    --header-height: 60px;

    /* Typography */
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    --font-mono: 'SF Mono', Monaco, 'Cascadia Code', Consolas, monospace;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
}

/* Dark Mode */
body.dark {
    --bg-primary: rgba(30, 30, 46, 0.8);
    --bg-secondary: rgba(30, 30, 46, 0.6);
    --bg-tertiary: rgba(30, 30, 46, 0.4);
    --bg-solid: #1e1e2e;
    --text-primary: #e2e8f0;
    --text-secondary: #a0aec0;
    --text-muted: #718096;
    --border-color: rgba(255, 255, 255, 0.1);
    --accent-color: #818cf8;
    --accent-hover: #a5b4fc;
    --accent-gradient: linear-gradient(135deg, #818cf8 0%, #c084fc 100%);

    /* Glass effect - dark */
    --glass-bg: rgba(30, 30, 46, 0.75);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);

    /* Gradient backgrounds - dark */
    --gradient-bg: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #1a1a2e 100%);
}

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

/* Base */
html, body {
    height: 100%;
    font-family: var(--font-sans);
    font-size: 14px;
    line-height: 1.5;
    color: var(--text-primary);
    background: #e8ecf1;
    -webkit-font-smoothing: antialiased;
}

body.dark {
    background: #0f0f1a;
}

body.modal-open {
    overflow: hidden;
}

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

/* Header */
.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
    padding: 0 24px;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--blur-amount));
    -webkit-backdrop-filter: blur(var(--blur-amount));
    border-bottom: 1px solid var(--glass-border);
    box-shadow: var(--shadow-sm);
    flex-shrink: 0;
    position: relative;
    z-index: 100;
}

.header-logo {
    font-size: 20px;
    font-weight: 700;
    color: var(--accent-color);
}

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

/* Main Layout */
.main-container {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--blur-amount));
    -webkit-backdrop-filter: blur(var(--blur-amount));
    border-right: 1px solid var(--glass-border);
    flex-shrink: 0;
}

.sidebar-header {
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    border-bottom: 1px solid var(--glass-border);
}

.sidebar-content {
    flex: 1;
    overflow-y: auto;
}

/* Search Input */
.search-container {
    position: relative;
}

.search-input {
    width: 100%;
    padding: 10px 14px;
    font-size: 13px;
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: var(--text-primary);
    outline: none;
    transition: all var(--transition-fast);
}

body.dark .search-input {
    background: rgba(30, 30, 46, 0.5);
}

.search-input:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.15);
}

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

/* Tag Filter */
.tag-filter {
    padding: 12px;
    border-bottom: 1px solid var(--border-color);
}

.tag-filter.hidden {
    display: none;
}

.tag-filter-header {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.tag-filter-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

/* Prompt List */
.prompt-list {
    padding: 8px;
}

.prompt-item {
    padding: 12px 14px;
    border-radius: 10px;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 1px solid transparent;
    margin-bottom: 4px;
}

.prompt-item:hover {
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-color: var(--glass-border);
    transform: translateX(4px);
}

.prompt-item.active {
    background: rgba(102, 126, 234, 0.2);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: var(--accent-color);
    border-color: var(--accent-color);
    box-shadow: var(--shadow-md);
}

body.dark .prompt-item.active {
    background: rgba(129, 140, 248, 0.25);
    color: var(--accent-color);
}

.prompt-item.active .prompt-item-date {
    color: var(--accent-color);
    opacity: 0.8;
}

.prompt-item.active .tag-chip {
    background: rgba(102, 126, 234, 0.2);
    color: var(--accent-color);
    border-color: rgba(102, 126, 234, 0.3);
}

.prompt-item-title {
    font-weight: 500;
    margin-bottom: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.prompt-item-tags {
    display: flex;
    gap: 4px;
    margin: 4px 0;
}

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

.empty-list {
    padding: 24px;
    text-align: center;
    color: var(--text-secondary);
}

.empty-list .hint {
    font-size: 12px;
    margin-top: 4px;
}

/* Editor */
.editor {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--blur-amount));
    -webkit-backdrop-filter: blur(var(--blur-amount));
    margin: 16px;
    margin-left: 0;
    border-radius: 16px;
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-md);
}

.editor-empty {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 16px;
}

.editor-empty.hidden {
    display: none;
}

.editor-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.editor-content.hidden {
    display: none;
}

.editor-header {
    padding: 20px;
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
    gap: 14px;
    background: rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

body.dark .editor-header {
    background: rgba(30, 30, 46, 0.3);
}

.editor-row {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.editor-field {
    flex: 1;
}

.editor-field label {
    display: block;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.editor-input {
    width: 100%;
    padding: 10px 14px;
    font-size: 14px;
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: var(--text-primary);
    outline: none;
    transition: all var(--transition-fast);
}

body.dark .editor-input {
    background: rgba(30, 30, 46, 0.5);
}

.editor-input:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.15);
}

.editor-input:read-only {
    background: rgba(255, 255, 255, 0.3);
    border-color: transparent;
    cursor: default;
}

body.dark .editor-input:read-only {
    background: rgba(30, 30, 46, 0.3);
}

.editor-input:read-only:focus {
    border-color: transparent;
    box-shadow: none;
}

.editor-input.title {
    font-size: 20px;
    font-weight: 600;
}

/* Tags Input */
.tag-input-row {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

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

.tag-input-container {
    position: relative;
}

.tag-input {
    width: 120px;
    padding: 6px 10px;
    font-size: 12px;
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: var(--text-primary);
    outline: none;
    transition: all var(--transition-fast);
}

body.dark .tag-input {
    background: rgba(30, 30, 46, 0.5);
}

.tag-input:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.15);
}

.tag-suggestions {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    box-shadow: var(--shadow-md);
    z-index: 100;
    margin-top: 4px;
    overflow: hidden;
}

.tag-suggestions.hidden {
    display: none;
}

.tag-suggestion {
    display: flex;
    justify-content: space-between;
    width: 100%;
    padding: 8px 12px;
    border: none;
    background: none;
    color: var(--text-primary);
    cursor: pointer;
    text-align: left;
}

.tag-suggestion:hover {
    background: var(--bg-tertiary);
}

/* Tag Chips */
.tag-chip {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    font-size: 11px;
    background: rgba(102, 126, 234, 0.15);
    color: var(--accent-color);
    border-radius: 20px;
    border: 1px solid rgba(102, 126, 234, 0.2);
    cursor: default;
    font-weight: 500;
    transition: all var(--transition-fast);
}

body.dark .tag-chip {
    background: rgba(129, 140, 248, 0.2);
    color: var(--accent-color);
    border-color: rgba(129, 140, 248, 0.3);
}

.tag-chip.small {
    padding: 2px 8px;
    font-size: 10px;
}

.tag-chip.filter {
    cursor: pointer;
}

.tag-chip.filter:hover {
    background: rgba(102, 126, 234, 0.25);
    color: var(--accent-color);
    border-color: var(--accent-color);
    transform: translateY(-1px);
}

.tag-chip.filter.active {
    background: rgba(102, 126, 234, 0.3);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: var(--accent-color);
    border-color: var(--accent-color);
    box-shadow: var(--shadow-sm);
}

.tag-chip.editable {
    cursor: default;
}

.tag-chip .tag-count {
    opacity: 0.7;
}

.tag-remove {
    background: none;
    border: none;
    color: inherit;
    cursor: pointer;
    padding: 0;
    margin-left: 2px;
    opacity: 0.7;
    transition: opacity var(--transition-fast);
}

.tag-remove:hover {
    opacity: 1;
}

.tag-more {
    font-size: 10px;
    color: var(--text-muted);
    font-weight: 500;
}

/* Editor Body */
.editor-body {
    flex: 1;
    padding: 16px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.body-input {
    flex: 1;
    width: 100%;
    padding: 16px;
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 1.7;
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: var(--text-primary);
    resize: none;
    outline: none;
    transition: all var(--transition-fast);
}

body.dark .body-input {
    background: rgba(30, 30, 46, 0.5);
}

.body-input:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.15);
}

.body-input:read-only {
    background: rgba(255, 255, 255, 0.3);
    border-color: transparent;
    cursor: default;
}

body.dark .body-input:read-only {
    background: rgba(30, 30, 46, 0.3);
}

.body-input:read-only:focus {
    border-color: transparent;
    box-shadow: none;
}

.body-display {
    flex: 1;
    width: 100%;
    padding: 16px;
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 1.7;
    border: 1px solid transparent;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: var(--text-primary);
    overflow-y: auto;
    white-space: pre-wrap;
    word-wrap: break-word;
}

body.dark .body-display {
    background: rgba(30, 30, 46, 0.3);
}

.body-display.hidden {
    display: none;
}

.body-display .placeholder {
    background-color: #e7f1ff;
    color: #0056b3;
    padding: 1px 4px;
    border-radius: 3px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.body-display .placeholder:hover {
    background-color: #cce0ff;
    box-shadow: 0 0 0 2px rgba(0, 86, 179, 0.2);
}

body.dark .body-display .placeholder {
    background-color: #1a3a5c;
    color: #6db3f2;
}

body.dark .body-display .placeholder:hover {
    background-color: #264a6e;
    box-shadow: 0 0 0 2px rgba(109, 179, 242, 0.2);
}

/* Filled placeholder (temp fill before copy) */
.body-display .placeholder.filled {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.body-display .placeholder.filled:hover {
    background-color: #c3e6cb;
}

body.dark .body-display .placeholder.filled {
    background-color: #1e4620;
    color: #75d67a;
    border-color: #2d5a30;
}

body.dark .body-display .placeholder.filled:hover {
    background-color: #2d5a30;
}

/* Inline input for placeholder filling */
.placeholder-input {
    font-family: var(--font-mono);
    font-size: 13px;
    padding: 2px 6px;
    border: 2px solid var(--accent-color);
    border-radius: 4px;
    background: var(--bg-solid);
    color: var(--text-primary);
    outline: none;
    min-width: 100px;
    max-width: 300px;
}

/* Editor Footer */
.editor-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 20px;
    border-top: 1px solid var(--glass-border);
    background: rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-radius: 0 0 16px 16px;
}

body.dark .editor-footer {
    background: rgba(30, 30, 46, 0.3);
}

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

.version-info {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: var(--text-secondary);
}

/* Version Panel */
.version-panel {
    width: 320px;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--blur-amount));
    -webkit-backdrop-filter: blur(var(--blur-amount));
    border-left: 1px solid var(--glass-border);
    overflow-y: auto;
    margin: 16px;
    margin-left: 0;
    border-radius: 16px;
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-md);
}

.version-panel.hidden {
    display: none;
}

.version-panel-header {
    padding: 16px 20px;
    font-weight: 600;
    font-size: 15px;
    border-bottom: 1px solid var(--glass-border);
    background: rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-radius: 16px 16px 0 0;
}

body.dark .version-panel-header {
    background: rgba(30, 30, 46, 0.3);
}

.version-list {
    padding: 12px;
}

.version-item {
    padding: 14px;
    border-radius: 12px;
    margin-bottom: 10px;
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    transition: all var(--transition-fast);
}

body.dark .version-item {
    background: rgba(30, 30, 46, 0.5);
}

.version-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.version-item.current {
    border-color: var(--accent-color);
    background: rgba(102, 126, 234, 0.1);
}

body.dark .version-item.current {
    background: rgba(129, 140, 248, 0.15);
}

.version-info {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 8px;
}

.version-badge {
    display: inline-block;
    padding: 3px 10px;
    font-size: 11px;
    font-weight: 600;
    background: rgba(102, 126, 234, 0.2);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: var(--accent-color);
    border: 1px solid rgba(102, 126, 234, 0.3);
    border-radius: 20px;
}

body.dark .version-badge {
    background: rgba(129, 140, 248, 0.25);
    border-color: rgba(129, 140, 248, 0.3);
}

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

.version-note {
    display: block;
    width: 100%;
    font-size: 12px;
    color: var(--text-secondary);
    font-style: italic;
}

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

.empty-versions {
    padding: 16px;
    text-align: center;
    color: var(--text-secondary);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 20px;
    font-size: 13px;
    font-weight: 600;
    border: 1px solid rgba(102, 126, 234, 0.3);
    border-radius: 10px;
    cursor: pointer;
    transition: all var(--transition-fast);
    background: rgba(102, 126, 234, 0.15);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: var(--accent-color);
    box-shadow: var(--shadow-sm);
}

body.dark .btn {
    background: rgba(129, 140, 248, 0.2);
    border-color: rgba(129, 140, 248, 0.3);
    color: var(--accent-color);
}

.btn:hover:not(:disabled) {
    background: rgba(102, 126, 234, 0.25);
    border-color: var(--accent-color);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

body.dark .btn:hover:not(:disabled) {
    background: rgba(129, 140, 248, 0.3);
}

.btn:active:not(:disabled) {
    transform: translateY(0);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn.secondary {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
}

.btn.secondary:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.8);
    border-color: var(--accent-color);
}

body.dark .btn.secondary:hover:not(:disabled) {
    background: rgba(30, 30, 46, 0.8);
}

.btn.danger {
    background: rgba(245, 101, 101, 0.3);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--danger-color);
    color: var(--danger-color);
}

.btn.danger svg {
    stroke: var(--danger-color);
}

.btn.danger:hover:not(:disabled) {
    background: rgba(245, 101, 101, 0.5);
    border-color: var(--danger-color);
}

.btn-small {
    padding: 4px 8px;
    font-size: 11px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background var(--transition-fast);
}

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

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

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
    background: transparent;
    border: none;
    border-radius: 6px;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

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

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

.btn-icon svg {
    width: 18px;
    height: 18px;
}

/* Modal */
.modal {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 1000;
}

.modal.hidden {
    display: none;
}

.modal-content {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 20px;
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-lg);
    max-width: 600px;
    max-height: 80vh;
    overflow: auto;
    width: 90%;
}

/* Dialogs */
.confirm-dialog,
.draft-dialog,
.version-note-dialog {
    padding: 24px;
}

.confirm-dialog p,
.draft-dialog p,
.version-note-dialog p {
    margin-bottom: 16px;
    color: var(--text-primary);
}

.confirm-dialog h3,
.draft-dialog h3,
.version-note-dialog h3 {
    margin-bottom: 12px;
}

.confirm-actions,
.dialog-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

.version-note-dialog textarea {
    width: 100%;
    padding: 12px;
    font-family: var(--font-sans);
    font-size: 14px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-primary);
    color: var(--text-primary);
    resize: vertical;
    margin-bottom: 16px;
}

/* Diff Modal */
.diff-modal {
    display: flex;
    flex-direction: column;
}

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

.diff-header h3 {
    margin: 0;
}

.diff-versions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.diff-arrow {
    color: var(--text-secondary);
}

.diff-content {
    padding: 16px 24px;
    max-height: 400px;
    overflow-y: auto;
}

.diff-legend {
    display: flex;
    gap: 16px;
    margin-bottom: 12px;
    font-size: 12px;
}

.diff-legend-item {
    display: flex;
    align-items: center;
    gap: 4px;
}

.diff-legend-item.added::before {
    content: '';
    display: inline-block;
    width: 12px;
    height: 12px;
    background: rgba(25, 135, 84, 0.2);
    border-radius: 2px;
}

.diff-legend-item.removed::before {
    content: '';
    display: inline-block;
    width: 12px;
    height: 12px;
    background: rgba(220, 53, 69, 0.2);
    border-radius: 2px;
}

.diff-body {
    font-family: var(--font-mono);
    font-size: 12px;
    line-height: 1.6;
    background: rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-radius: 12px;
    padding: 14px;
    border: 1px solid var(--glass-border);
}

body.dark .diff-body {
    background: rgba(30, 30, 46, 0.4);
}

.diff-line {
    display: flex;
    padding: 2px 8px;
    margin: 0 -8px;
}

.diff-line.added {
    background: rgba(25, 135, 84, 0.15);
}

.diff-line.removed {
    background: rgba(220, 53, 69, 0.15);
}

.diff-prefix {
    width: 20px;
    flex-shrink: 0;
    color: var(--text-secondary);
    user-select: none;
}

.diff-text {
    flex: 1;
    white-space: pre-wrap;
    word-break: break-word;
}

.no-changes {
    text-align: center;
    color: var(--text-secondary);
    padding: 24px;
}

.diff-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
}

/* Toast */
.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    padding: 14px 28px;
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    color: var(--text-primary);
    border-radius: 12px;
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-lg);
    z-index: 1100;
    transition: opacity var(--transition-fast), transform var(--transition-fast);
    font-weight: 500;
}

.toast.hidden {
    opacity: 0;
    transform: translateY(10px);
    pointer-events: none;
}

.toast.error {
    background: rgba(245, 101, 101, 0.2);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: var(--danger-color);
    border-color: rgba(245, 101, 101, 0.3);
}

.toast.success {
    background: rgba(72, 187, 120, 0.2);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: var(--success-color);
    border-color: rgba(72, 187, 120, 0.3);
}

/* Hidden utility */
.hidden {
    display: none !important;
}

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

::-webkit-scrollbar-track {
    background: transparent;
}

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

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

/* Focus visible */
:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* ========================================
   Auth UI Styles
   ======================================== */

/* User Menu */
.user-menu {
    position: relative;
}

.user-avatar {
    background: rgba(102, 126, 234, 0.15);
    border-radius: 50%;
}

.user-avatar:hover {
    background: rgba(102, 126, 234, 0.25);
}

body.dark .user-avatar {
    background: rgba(129, 140, 248, 0.2);
}

body.dark .user-avatar:hover {
    background: rgba(129, 140, 248, 0.3);
}

.user-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 200px;
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    overflow: hidden;
}

.user-email {
    padding: 12px 16px;
    font-size: 12px;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--glass-border);
    word-break: break-all;
}

.sync-status {
    padding: 8px 16px;
    font-size: 11px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
}

.sync-status::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--success-color);
}

.sync-status.syncing::before {
    background: var(--warning-color);
    animation: pulse 1s infinite;
}

.sync-status.error::before {
    background: var(--danger-color);
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.dropdown-item {
    display: block;
    width: 100%;
    padding: 10px 16px;
    font-size: 13px;
    text-align: left;
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.dropdown-item:hover {
    background: var(--bg-tertiary);
}

.dropdown-item.danger {
    color: var(--danger-color);
}

.dropdown-item.danger:hover {
    background: rgba(245, 101, 101, 0.1);
}

/* Auth Modal */
.auth-modal-content {
    padding: 32px;
    max-width: 400px;
    position: relative;
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 32px;
    height: 32px;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: 6px;
    transition: all var(--transition-fast);
}

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

.auth-modal-content h2 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.auth-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-group input {
    width: 100%;
    padding: 12px 14px;
    font-size: 14px;
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: var(--text-primary);
    outline: none;
    transition: all var(--transition-fast);
}

body.dark .form-group input {
    background: rgba(30, 30, 46, 0.5);
}

.form-group input:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.15);
}

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

.auth-error {
    padding: 10px 14px;
    margin-bottom: 16px;
    font-size: 13px;
    color: var(--danger-color);
    background: rgba(245, 101, 101, 0.1);
    border: 1px solid rgba(245, 101, 101, 0.2);
    border-radius: 8px;
}

.btn.primary {
    background: var(--accent-gradient);
    color: white;
    border: none;
}

.btn.primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.3);
}

.btn.full-width {
    width: 100%;
}

.auth-switch {
    margin-top: 20px;
    text-align: center;
    font-size: 13px;
    color: var(--text-secondary);
}

.btn-link {
    background: none;
    border: none;
    color: var(--accent-color);
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    padding: 0;
    margin-left: 4px;
}

.btn-link:hover {
    text-decoration: underline;
}

/* Export Dialog */
.export-dialog,
.import-dialog {
    padding: 24px;
}

.export-dialog h3,
.import-dialog h3 {
    margin-bottom: 8px;
}

.export-dialog p,
.import-dialog p {
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.export-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

/* Checkbox styling */
.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    cursor: pointer;
    padding: 12px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 8px;
    border: 1px solid var(--glass-border);
    transition: all var(--transition-fast);
}

body.dark .checkbox-label {
    background: rgba(30, 30, 46, 0.3);
}

.checkbox-label:hover {
    background: rgba(255, 255, 255, 0.5);
    border-color: var(--accent-color);
}

body.dark .checkbox-label:hover {
    background: rgba(30, 30, 46, 0.5);
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin-top: 2px;
    accent-color: var(--accent-color);
    cursor: pointer;
}

.checkbox-label span {
    flex: 1;
    font-size: 14px;
    color: var(--text-primary);
    line-height: 1.4;
}

/* Loading Screen */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-bg);
    z-index: 10000;
}

.loading-screen.hidden {
    display: none;
}

.loading-content {
    text-align: center;
}

.loading-content h1 {
    font-size: 32px;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 24px;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    margin: 0 auto;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Login Screen / Landing Page Container */
.login-screen {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 9999;
    overflow-y: auto;
    background: var(--gradient-bg);
}

.login-screen.hidden {
    display: none;
}

/* Old split layout styles - kept for backwards compatibility */

.login-left {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 40px;
}

.login-branding {
    text-align: center;
    color: white;
    max-width: 400px;
}

.login-illustration {
    width: 200px;
    height: 200px;
    margin: 0 auto 32px;
}

.login-illustration svg {
    width: 100%;
    height: 100%;
}

.login-branding h2 {
    font-size: 28px;
    margin-bottom: 12px;
    font-weight: 600;
}

.login-branding p {
    font-size: 16px;
    opacity: 0.9;
    line-height: 1.6;
}

.login-right {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-solid);
    padding: 40px;
}

.login-form-container {
    width: 100%;
    max-width: 380px;
}

.login-form-container h1 {
    font-size: 32px;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
    text-align: center;
}

.login-subtitle {
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 32px;
}

.login-form .form-group {
    margin-bottom: 20px;
}

.login-form .form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-primary);
}

.login-form .form-group input {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    font-size: 14px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.login-form .form-group input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.login-form .form-group input::placeholder {
    color: var(--text-muted);
}

.login-error {
    background: rgba(245, 101, 101, 0.1);
    border: 1px solid var(--danger-color);
    color: var(--danger-color);
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 16px;
    font-size: 13px;
}

.login-error.hidden {
    display: none;
}

.login-form .btn.full-width {
    width: 100%;
    padding: 14px;
    font-size: 16px;
    margin-top: 8px;
}

.login-divider {
    display: flex;
    align-items: center;
    margin: 20px 0;
    color: var(--text-muted);
    font-size: 13px;
}

.login-divider::before,
.login-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border-color);
}

.login-divider span {
    padding: 0 12px;
}

.github-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    background: #24292e;
    color: #fff;
    border: none;
    padding: 14px;
    font-size: 16px;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.2s;
}

.github-btn:hover {
    background: #2f363d;
}

.github-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.github-btn svg {
    flex-shrink: 0;
}

.login-switch {
    text-align: center;
    margin-top: 24px;
    color: var(--text-secondary);
}

.login-switch .btn-link {
    background: none;
    border: none;
    color: var(--accent-color);
    cursor: pointer;
    font-size: inherit;
    padding: 0;
    margin-left: 4px;
}

.login-switch .btn-link:hover {
    text-decoration: underline;
}

.login-footer {
    text-align: center;
    margin-top: 48px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

.login-footer p {
    color: var(--text-muted);
    font-size: 13px;
    margin-bottom: 8px;
}

.login-footer a {
    color: var(--accent-color);
    text-decoration: none;
}

.login-footer a:hover {
    text-decoration: underline;
}

/* Profile Page */
.profile-page {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-primary);
    z-index: 1000;
    overflow-y: auto;
}

.profile-container {
    max-width: 600px;
    margin: 0 auto;
    padding: 20px;
}

.profile-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 32px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.profile-header h1 {
    font-size: 24px;
    font-weight: 600;
    margin: 0;
}

.profile-avatar-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 32px 0;
    margin-bottom: 24px;
}

.profile-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin-bottom: 16px;
    border: 3px solid var(--accent-color);
}

.profile-avatar svg {
    width: 50px;
    height: 50px;
    color: var(--text-muted);
}

.profile-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.profile-name {
    font-size: 22px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.profile-email-display {
    font-size: 14px;
    color: var(--text-secondary);
}

.profile-section {
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 20px;
}

.profile-section h3 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin: 0 0 16px 0;
}

.profile-info-grid {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.profile-info-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid var(--border-color);
}

.profile-info-item:last-child {
    border-bottom: none;
}

.profile-label {
    font-size: 14px;
    color: var(--text-secondary);
}

.profile-value {
    font-size: 14px;
    color: var(--text-primary);
    font-weight: 500;
}

.profile-uid {
    font-family: monospace;
    font-size: 12px;
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
}

.profile-providers {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.provider-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: var(--bg-primary);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.provider-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.provider-icon {
    width: 24px;
    height: 24px;
}

.provider-icon svg {
    width: 100%;
    height: 100%;
}

.provider-name {
    font-weight: 500;
    color: var(--text-primary);
}

.provider-status {
    font-size: 12px;
    padding: 4px 8px;
    border-radius: 4px;
    font-weight: 500;
}

.provider-status.connected {
    background: rgba(34, 197, 94, 0.1);
    color: #22c55e;
}

.provider-status.not-connected {
    background: var(--bg-secondary);
    color: var(--text-muted);
}

/* API Key */
.api-key-description {
    font-size: 13px;
    color: var(--text-secondary);
    margin: 0 0 12px 0;
}

.api-key-container {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px;
}

.api-key-value {
    flex: 1;
    font-family: 'SF Mono', Monaco, 'Courier New', monospace;
    font-size: 13px;
    color: var(--text-primary);
    word-break: break-all;
    background: none;
    padding: 0;
}

.api-key-container .btn-icon {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
}

.api-key-container .btn-icon svg {
    width: 16px;
    height: 16px;
}

/* MCP Connection Styles */
.mcp-endpoint label,
.mcp-config label {
    display: block;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.mcp-config-container {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px;
}

.mcp-config-code {
    flex: 1;
    font-family: 'SF Mono', Monaco, 'Courier New', monospace;
    font-size: 12px;
    line-height: 1.5;
    color: var(--text-primary);
    white-space: pre-wrap;
    word-break: break-all;
    margin: 0;
    overflow-x: auto;
}

.mcp-config-container .btn-icon {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    align-self: flex-start;
}

.mcp-config-container .btn-icon svg {
    width: 16px;
    height: 16px;
}

.mcp-config-help {
    margin-top: 8px;
    font-size: 12px;
    color: var(--text-secondary);
}

.mcp-config-help code {
    background: var(--bg-secondary);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 11px;
}

/* Responsive login */
@media (max-width: 768px) {
    .login-screen {
        flex-direction: column;
    }

    .login-left {
        flex: none;
        padding: 40px 20px;
    }

    .login-illustration {
        width: 120px;
        height: 120px;
        margin-bottom: 16px;
    }

    .login-branding h2 {
        font-size: 22px;
    }

    .login-branding p {
        font-size: 14px;
    }

    .login-right {
        flex: 1;
        padding: 30px 20px;
    }
}

/* Loading state for auth button */
.btn.loading {
    position: relative;
    color: transparent;
}

.btn.loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        width: 240px;
    }

    .version-panel {
        position: fixed;
        right: 0;
        top: var(--header-height);
        bottom: 0;
        z-index: 100;
        box-shadow: var(--shadow-lg);
    }
}

/* ===== LANDING PAGE STYLES ===== */

.landing-page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Navigation */
.landing-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.landing-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 22px;
    font-weight: 700;
    color: var(--text-primary);
}

.landing-logo svg {
    color: var(--accent-color);
}

.landing-nav-links {
    display: flex;
    gap: 20px;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
}

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

/* Hero Section */
.landing-hero {
    background: var(--gradient-bg);
    padding-bottom: 80px;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 60px 40px 0;
    text-align: center;
}

.hero-title {
    font-size: 52px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.gradient-text {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn.large {
    padding: 14px 28px;
    font-size: 16px;
    gap: 10px;
}

.btn.large svg {
    width: 20px;
    height: 20px;
}

.hero-note {
    margin-top: 20px;
    font-size: 14px;
    color: var(--text-muted);
}

/* Features Section */
.landing-features {
    padding: 80px 40px;
    background: var(--bg-solid);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    max-width: 1100px;
    margin: 0 auto;
}

.feature-card {
    padding: 32px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    text-align: center;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-gradient);
    border-radius: 14px;
}

.feature-icon svg {
    width: 28px;
    height: 28px;
    color: white;
}

.feature-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.feature-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* MCP Section */
.landing-mcp {
    padding: 80px 40px;
    background: var(--gradient-bg);
}

.mcp-content {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.mcp-text h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.mcp-text > p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.7;
}

.mcp-features-list {
    list-style: none;
}

.mcp-features-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
    font-size: 15px;
    color: var(--text-primary);
}

.mcp-features-list svg {
    color: var(--success-color);
    flex-shrink: 0;
}

.mcp-code {
    background: #1e1e2e;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.code-header {
    background: #2d2d44;
    padding: 12px 20px;
    font-size: 13px;
    color: #a0aec0;
    font-family: var(--font-mono);
}

.mcp-code pre {
    padding: 20px;
    margin: 0;
    overflow-x: auto;
}

.mcp-code code {
    font-family: var(--font-mono);
    font-size: 13px;
    color: #e2e8f0;
    line-height: 1.6;
}

/* CTA Section */
.landing-cta {
    padding: 80px 40px;
    background: var(--bg-solid);
    text-align: center;
}

.landing-cta h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.landing-cta > p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

/* Footer */
.landing-footer {
    padding: 40px;
    background: var(--gradient-bg);
    border-top: 1px solid var(--border-color);
}

.footer-content {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-logo {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
}

.footer-brand p {
    margin-top: 8px;
    font-size: 14px;
    color: var(--text-secondary);
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--accent-color);
}

/* Login Modal */
.login-modal-content {
    max-width: 400px;
    padding: 40px;
}

.login-modal-content h2 {
    font-size: 24px;
    margin-bottom: 8px;
    text-align: center;
}

.login-modal-content .login-subtitle {
    text-align: center;
    margin-bottom: 32px;
}

/* Responsive Landing */
@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .mcp-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .landing-nav {
        padding: 16px 20px;
    }

    .hero-content {
        padding: 40px 20px 0;
    }

    .hero-title {
        font-size: 32px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .btn.large {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }

    .landing-features {
        padding: 60px 20px;
    }

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

    .landing-mcp {
        padding: 60px 20px;
    }

    .landing-cta {
        padding: 60px 20px;
    }

    .landing-cta h2 {
        font-size: 24px;
    }

    .footer-content {
        flex-direction: column;
        gap: 24px;
        text-align: center;
    }
}