/* ==========================================================================
   Pronst.DEV - Design System
   Style: Minimal, aéré, inspiration InsightHub
   Light mode first, dark mode préparé via variables CSS
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design Tokens (CSS Custom Properties)
   -------------------------------------------------------------------------- */

:root {
    /* Page - fond bleuté comme les screenshots InsightHub */
    --color-page-bg: #e8edf5;

    /* Surfaces - effet verre subtil */
    --color-surface: rgba(255, 255, 255, 0.85);
    --color-surface-solid: #ffffff;
    --color-surface-hover: rgba(255, 255, 255, 0.95);
    --color-surface-active: rgba(59, 124, 245, 0.06);
    --color-surface-inset: rgba(241, 244, 250, 0.8);
    --color-surface-raised: rgba(255, 255, 255, 0.95);

    /* Accent - bleu royal vif comme screenshots */
    --color-accent: #3b7cf5;
    --color-accent-hover: #2d68e0;
    --color-accent-light: rgba(59, 124, 245, 0.08);
    --color-accent-lighter: rgba(59, 124, 245, 0.04);
    --color-accent-text: #3b7cf5;
    --color-on-accent: #ffffff;

    /* Text - hiérarchie nette, labels lisibles */
    --color-text: #1e293b;
    --color-text-secondary: #475569;
    --color-text-tertiary: #64748b;
    --color-text-muted: #94a3b8;
    --color-text-placeholder: #94a3b8;

    /* Borders - très subtiles */
    --color-border: rgba(148, 163, 184, 0.15);
    --color-border-strong: rgba(148, 163, 184, 0.25);

    /* Semantic */
    --color-danger: #ef4444;
    --color-danger-light: rgba(239, 68, 68, 0.08);
    --color-success: #22c55e;
    --color-success-light: rgba(34, 197, 94, 0.08);
    --color-warning: #f59e0b;
    --color-warning-light: rgba(245, 158, 11, 0.08);
    --color-info: #3b82f6;

    /* Shadows - plus douces, bleutées */
    --shadow-xs: 0 1px 3px rgba(59, 124, 245, 0.04);
    --shadow-sm: 0 2px 8px rgba(59, 124, 245, 0.06);
    --shadow-md: 0 4px 20px rgba(59, 124, 245, 0.08);
    --shadow-lg: 0 8px 32px rgba(59, 124, 245, 0.10);
    --shadow-xl: 0 20px 48px rgba(59, 124, 245, 0.14);

    /* Radius - généreux comme les screenshots */
    --radius-sm: 10px;
    --radius-md: 14px;
    --radius-lg: 18px;
    --radius-xl: 22px;
    --radius-2xl: 28px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 200ms ease;
    --transition-slow: 300ms ease;

    /* Glassmorphism - subtil, pas trop transparent */
    --glass-bg: rgba(255, 255, 255, 0.88);
    --glass-blur: 20px;
    --glass-border: rgba(255, 255, 255, 0.45);

    /* Code blocks */
    --color-code-bg: #1e293b;
    --color-code-label: #94a3b8;
    --color-code-btn-hover: rgba(148, 163, 184, 0.15);

    /* Score ranges */
    --color-score-lime: #84cc16;
    --color-score-lime-light: rgba(132, 204, 22, 0.1);
    --color-score-orange: #ea580c;
    --color-score-orange-light: rgba(249, 115, 22, 0.1);
    --color-score-lime-dark: #65a30d;

    /* Clarification "Je ne sais pas" */
    --color-neutral: #64748b;
}


/* --------------------------------------------------------------------------
   2. Base Styles
   -------------------------------------------------------------------------- */

* {
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--color-page-bg);
    color: var(--color-text);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.app-shell {
    height: calc(100vh - 24px);
    display: flex;
    overflow: hidden;
    margin: 0 12px;
    border-radius: var(--radius-2xl);
    background: linear-gradient(
        160deg,
        rgba(255, 255, 255, 0.97) 0%,
        rgba(248, 250, 252, 0.95) 40%,
        rgba(240, 244, 248, 0.93) 65%,
        rgba(232, 245, 238, 0.90) 100%
    );
    box-shadow:
        0 2px 8px rgba(59, 124, 245, 0.05),
        0 8px 32px rgba(59, 124, 245, 0.07),
        0 20px 60px -8px rgba(59, 124, 245, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.6);
}


/* --------------------------------------------------------------------------
   3. Scrollbar
   -------------------------------------------------------------------------- */

::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

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

::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.12);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.2);
}

.prompt-editor-scroll {
    scrollbar-gutter: stable;
}

.prompt-editor-scroll::-webkit-scrollbar {
    width: 8px;
}

.prompt-editor-scroll::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.04);
    border-radius: 4px;
}

.prompt-editor-scroll::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.15);
    border-radius: 4px;
    min-height: 40px;
}

.prompt-editor-scroll::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.25);
}


/* --------------------------------------------------------------------------
   4. Animations
   -------------------------------------------------------------------------- */

@keyframes fade-in {
    from { opacity: 0; transform: translateY(4px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fade-in-up {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse-dot {
    0%, 80%, 100% { opacity: 0.3; transform: scale(0.8); }
    40% { opacity: 1; transform: scale(1); }
}

@keyframes slide-in-left {
    from { opacity: 0; transform: translateX(-16px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes slide-in-right {
    from { opacity: 0; transform: translateX(100%); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes scale-in {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.animate-fade-in {
    animation: fade-in 0.2s ease-out;
}

.animate-fade-in-up {
    animation: fade-in-up 0.3s ease-out;
}

.animate-slide-in {
    animation: slide-in-left 0.15s ease-out;
}

.animate-slide-in-right {
    animation: slide-in-right 0.25s ease-out;
}

.animate-scale-in {
    animation: scale-in 0.2s ease-out;
}

.animate-spin {
    animation: spin 1s linear infinite;
}


/* --------------------------------------------------------------------------
   5. Loading Dots
   -------------------------------------------------------------------------- */

.loading-dots span {
    display: inline-block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
    animation: pulse-dot 1.4s infinite ease-in-out;
    margin: 0 2px;
}

.loading-dots span:nth-child(2) { animation-delay: 0.2s; }
.loading-dots span:nth-child(3) { animation-delay: 0.4s; }


/* --------------------------------------------------------------------------
   6. Component: Cards
   -------------------------------------------------------------------------- */

.card {
    background: var(--color-surface);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-radius: var(--radius-lg);
    box-shadow:
        0 1px 2px rgba(59, 124, 245, 0.03),
        0 4px 12px rgba(59, 124, 245, 0.05),
        0 8px 20px -4px rgba(59, 124, 245, 0.04);
    border: 1px solid var(--color-border);
    transition: box-shadow var(--transition-normal);
}

.card:hover {
    box-shadow:
        0 2px 4px rgba(59, 124, 245, 0.04),
        0 6px 16px rgba(59, 124, 245, 0.07),
        0 12px 28px -4px rgba(59, 124, 245, 0.06);
}

.card-flat {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
}

.card-inset {
    background: var(--color-surface-inset);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    border-radius: var(--radius-md);
}


/* --------------------------------------------------------------------------
   7. Component: Buttons
   -------------------------------------------------------------------------- */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    cursor: pointer;
    border: none;
    outline: none;
    font-family: inherit;
}

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

.btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--color-accent);
    color: var(--color-on-accent);
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
}

.btn-primary:hover:not(:disabled) {
    background: var(--color-accent-hover);
    box-shadow: 0 4px 14px rgba(59, 124, 245, 0.35);
}

.btn-secondary {
    background: var(--color-surface-inset);
    color: var(--color-text-secondary);
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
}

.btn-secondary:hover:not(:disabled) {
    background: var(--color-surface-hover);
    color: var(--color-text);
}

.btn-ghost {
    background: transparent;
    color: var(--color-text-secondary);
    padding: 0.5rem;
}

.btn-ghost:hover:not(:disabled) {
    background: var(--color-surface-inset);
    color: var(--color-text);
}

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.75rem;
    border-radius: var(--radius-sm);
}

.btn-xs {
    padding: 0.25rem 0.5rem;
    font-size: 0.6875rem;
    border-radius: 6px;
}

.btn-icon {
    padding: 0.5rem;
    border-radius: var(--radius-sm);
}

.btn-icon-sm {
    padding: 0.375rem;
    border-radius: 6px;
}


/* --------------------------------------------------------------------------
   8. Component: Inputs
   -------------------------------------------------------------------------- */

.input {
    width: 100%;
    padding: 0.625rem 0.875rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text);
    font-size: 0.875rem;
    font-family: inherit;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    outline: none;
}

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

.input:focus {
    border-color: var(--color-border);
    box-shadow: 0 0 0 4px var(--color-accent-light);
}

.input-inset {
    border: none;
    background: var(--color-surface-inset);
}

.input-inset:focus {
    background: var(--color-surface);
    box-shadow: 0 0 0 3px var(--color-accent-light);
}

.textarea-auto {
    resize: none;
    overflow-y: auto;
    min-height: 44px;
    max-height: 50vh;
}


/* --------------------------------------------------------------------------
   9. Component: Badges & Pills
   -------------------------------------------------------------------------- */

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.625rem;
    border-radius: var(--radius-full);
    font-size: 0.6875rem;
    font-weight: 500;
    line-height: 1;
}

.badge-accent {
    background: var(--color-accent-light);
    color: var(--color-accent-text);
}

.badge-success {
    background: var(--color-success-light);
    color: var(--color-success);
}

.badge-warning {
    background: var(--color-warning-light);
    color: var(--color-warning);
}

.badge-danger {
    background: var(--color-danger-light);
    color: var(--color-danger);
}

.badge-neutral {
    background: var(--color-surface-inset);
    color: var(--color-text-secondary);
}


/* --------------------------------------------------------------------------
   10. Component: Dropdown
   -------------------------------------------------------------------------- */

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    margin-top: 4px;
    z-index: 50;
    min-width: 160px;
    background: var(--color-surface);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 4px;
    animation: scale-in 0.15s ease-out;
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    width: 100%;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.8125rem;
    color: var(--color-text);
    transition: background var(--transition-fast);
    cursor: pointer;
    border: none;
    background: none;
    text-align: left;
    font-family: inherit;
}

.dropdown-item:hover {
    background: var(--color-surface-inset);
}

.dropdown-item.active {
    background: var(--color-accent-light);
    color: var(--color-accent-text);
}

.dropdown-item.disabled {
    opacity: 0.35;
    cursor: not-allowed;
    pointer-events: none;
}


/* --------------------------------------------------------------------------
   11. Component: Modal / Overlay
   -------------------------------------------------------------------------- */

.modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(4px);
}

.modal-panel {
    background: var(--color-surface-raised);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 28rem;
    margin: 1rem;
    padding: 1.5rem;
    animation: scale-in 0.2s ease-out;
}


/* --------------------------------------------------------------------------
   12. Component: Toggle / Switch
   -------------------------------------------------------------------------- */

.toggle-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.375rem 0.625rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    font-family: inherit;
}

.toggle-pill-inactive {
    background: var(--color-surface-inset);
    color: var(--color-text-tertiary);
}

.toggle-pill-inactive:hover {
    color: var(--color-text-secondary);
    background: var(--color-surface-hover);
}

.toggle-pill-active {
    background: var(--color-accent-light);
    color: var(--color-accent-text);
}


/* --------------------------------------------------------------------------
   13. Layout: Sidebar
   -------------------------------------------------------------------------- */

.sidebar {
    display: flex;
    flex-direction: column;
    background: transparent;
    border-right: 1px solid var(--color-border);
    transition: width var(--transition-normal), transform var(--transition-normal);
    z-index: 20;
}

.sidebar-transition {
    transition: width 0.2s ease, transform 0.2s ease;
}

.sidebar-nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    width: 100%;
    padding: 0.625rem 0.875rem;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
    cursor: pointer;
    border: none;
    background: none;
    text-align: left;
    font-family: inherit;
}

.sidebar-nav-item svg {
    color: var(--color-accent);
    flex-shrink: 0;
}

.sidebar-nav-item:hover {
    background: var(--color-surface-inset);
    color: var(--color-text);
}

.sidebar-nav-item.active {
    background: var(--color-accent);
    color: var(--color-on-accent);
    box-shadow: 0 4px 14px rgba(59, 124, 245, 0.35);
}

.sidebar-nav-item.active svg {
    color: var(--color-on-accent);
}

.sidebar-section-label {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.5rem 0.875rem;
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-text-tertiary);
}


/* --------------------------------------------------------------------------
   14. Layout: Header
   -------------------------------------------------------------------------- */

.app-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.625rem 1rem;
    background: transparent;
    border-bottom: 1px solid var(--color-border);
    z-index: 30;
    overflow: visible;
}

.header-control-group {
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.header-control-label {
    font-size: 0.625rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-tertiary);
    margin-bottom: 2px;
}

.header-divider {
    width: 1px;
    height: 1.5rem;
    background: var(--color-border);
    flex-shrink: 0;
}


/* --------------------------------------------------------------------------
   15. Layout: Chat Area
   -------------------------------------------------------------------------- */

.chat-panel-header {
    padding: 0.75rem 1.25rem;
    border-bottom: 1px solid var(--color-border);
    flex-shrink: 0;
}

.chat-panel-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow:
        0 1px 2px rgba(59, 124, 245, 0.03),
        0 4px 12px rgba(59, 124, 245, 0.05),
        0 8px 20px -4px rgba(59, 124, 245, 0.04);
    border: 1px solid var(--color-border);
    margin: 0.75rem;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.chat-panel-title {
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-text-tertiary);
}

.chat-split-divider {
    width: 1px;
    background: var(--color-border-strong);
    align-self: stretch;
    margin: 2rem 0;
    flex-shrink: 0;
}

/* Mobile tabs */
.mobile-tab {
    flex: 1;
    padding: 0.625rem 0;
    font-size: 0.875rem;
    font-weight: 500;
    text-align: center;
    transition: color var(--transition-fast), border-color var(--transition-fast);
    border-bottom: 2px solid transparent;
    color: var(--color-text-muted);
    cursor: pointer;
    background: none;
    border-top: none;
    border-left: none;
    border-right: none;
    font-family: inherit;
}

.mobile-tab:hover {
    color: var(--color-text-secondary);
}

.mobile-tab.active {
    border-bottom-color: var(--color-accent);
    color: var(--color-accent);
}

.mobile-tab-dot {
    position: absolute;
    top: 0.5rem;
    right: 25%;
    width: 0.5rem;
    height: 0.5rem;
    border-radius: var(--radius-full);
    background: var(--color-accent);
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 2rem;
    color: var(--color-text-tertiary);
}

.empty-state-icon {
    width: 3rem;
    height: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}


/* --------------------------------------------------------------------------
   16. Layout: Message Bubble
   -------------------------------------------------------------------------- */

.message-user {
    background: var(--color-accent-light);
    border: 1px solid rgba(59, 124, 245, 0.12);
    border-radius: var(--radius-lg) var(--radius-lg) 4px var(--radius-lg);
    padding: 0.875rem 1rem;
}

.message-assistant {
    padding: 1rem 1rem;
}


/* --------------------------------------------------------------------------
   17. Message Content (Markdown)
   -------------------------------------------------------------------------- */

.message-content .code-block {
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--color-code-bg);
}

.message-content pre {
    overflow-x: auto;
}

.message-content pre code {
    font-size: 0.85em;
    line-height: 1.5;
}

.message-content code:not(pre code) {
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.85em;
    background: var(--color-surface-inset);
}

.code-header {
    background: var(--color-code-bg);
    color: var(--color-code-label);
}

.code-header .copy-btn,
.code-header .wrap-btn {
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.code-block:hover .code-header .copy-btn,
.code-block:hover .code-header .wrap-btn {
    opacity: 1;
}

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

pre.code-wrapped code,
.prompt-display.code-wrapped {
    white-space: pre-wrap !important;
    word-break: break-word;
}

pre.code-wrapped {
    overflow-x: hidden;
}


/* --------------------------------------------------------------------------
   18. Prompt Display Toolbar
   -------------------------------------------------------------------------- */

.prompt-toolbar .copy-btn,
.prompt-toolbar .wrap-btn {
    opacity: 0.6;
    transition: opacity var(--transition-fast);
}

.prompt-toolbar .copy-btn:hover,
.prompt-toolbar .wrap-btn:hover {
    opacity: 1;
}


/* --------------------------------------------------------------------------
   19. Prompt Block Styling
   -------------------------------------------------------------------------- */

/* Code blocks normaux (javascript, python, etc.) */
.message-content pre {
    background: var(--color-code-bg);
    border-radius: var(--radius-md);
}

.message-content code:not(pre code) {
    background: var(--color-surface-inset);
}

/* Bloc prompt optimise - style elegant, pas code */
.message-content .code-block.language-prompt {
    border: none;
    border-radius: 0;
    box-shadow: none;
    background: none;
}

.message-content .code-block.language-prompt pre {
    background: rgba(59, 124, 245, 0.03) !important;
    border-radius: var(--radius-md) !important;
    padding: 1.25rem 1.5rem !important;
}

.message-content .code-block.language-prompt pre code {
    color: var(--color-text-secondary) !important;
    font-family: 'Inter', sans-serif !important;
    font-size: 0.8125rem !important;
    line-height: 1.8 !important;
    letter-spacing: 0.005em !important;
}

.message-content .code-block.language-prompt .code-header {
    display: none;
}


/* --------------------------------------------------------------------------
   20. Improvements Section
   -------------------------------------------------------------------------- */

.message-content .improvements-section {
    margin-top: 16px;
    padding: 16px 20px;
    border-radius: var(--radius-md);
    background: var(--color-accent-lighter);
    border: 1px solid rgba(59, 124, 245, 0.08);
}

.message-content .improvements-section > p:first-child,
.message-content .improvements-section > p:first-child strong {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-accent-text);
    margin-bottom: 12px;
}

.message-content .improvements-section > ul,
.message-content .improvements-section > ol {
    list-style: none;
    padding-left: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.message-content .improvements-section > ul > li,
.message-content .improvements-section > ol > li {
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    font-size: 0.8125rem;
    line-height: 1.5;
}

.message-content .improvements-section li strong,
.message-content .improvements-section p strong {
    color: var(--color-accent-text);
}

.message-content .improvements-section > p + p {
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    font-size: 0.8125rem;
    line-height: 1.5;
    margin-top: 10px;
}


/* --------------------------------------------------------------------------
   21. Line Clamp
   -------------------------------------------------------------------------- */

.line-clamp-3 {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}


/* --------------------------------------------------------------------------
   22. Focus Ring
   -------------------------------------------------------------------------- */

.focus-ring:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}


/* --------------------------------------------------------------------------
   23. Toast
   -------------------------------------------------------------------------- */

.toast {
    animation: fade-in 0.2s ease-out;
}


/* --------------------------------------------------------------------------
   24. Conversation List Item
   -------------------------------------------------------------------------- */

.conv-item {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.25rem;
    width: 100%;
    text-align: left;
    padding: 0.625rem 0.875rem;
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);
    cursor: pointer;
}

.conv-item:hover {
    background: var(--color-surface-inset);
}

.conv-item.active {
    background: var(--color-accent-light);
}

.conv-item .conv-delete {
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.conv-item:hover .conv-delete {
    opacity: 1;
}


/* --------------------------------------------------------------------------
   25. Sidebar Footer Avatar
   -------------------------------------------------------------------------- */

.user-avatar {
    width: 2rem;
    height: 2rem;
    border-radius: var(--radius-full);
    background: var(--color-accent-light);
    color: var(--color-accent-text);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
    flex-shrink: 0;
}

.user-avatar-lg {
    width: 2.5rem;
    height: 2.5rem;
    font-size: 0.875rem;
}


/* --------------------------------------------------------------------------
   26. Score Display
   -------------------------------------------------------------------------- */

.score-bar-track {
    height: 4px;
    border-radius: 2px;
    background: var(--color-surface-inset);
    overflow: hidden;
}

.score-bar-fill {
    height: 100%;
    border-radius: 2px;
    background: var(--color-accent);
    transition: width 0.5s ease-out;
}


/* --------------------------------------------------------------------------
   27. Prompt Editor (Slide Panel)
   -------------------------------------------------------------------------- */

.prompt-editor-panel {
    position: fixed;
    top: 12px;
    right: 12px;
    bottom: 12px;
    width: 100%;
    max-width: 48rem;
    background: linear-gradient(
        170deg,
        rgba(255, 255, 255, 1) 0%,
        rgba(248, 250, 253, 1) 50%,
        rgba(241, 245, 249, 1) 100%
    );
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    z-index: 10;
    overflow-y: auto;
    animation: slide-in-right 0.25s ease-out;
}

.prompt-editor-select {
    background: var(--color-surface-inset);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 0.375rem 0.625rem;
    font-size: 0.75rem;
    font-family: inherit;
    cursor: pointer;
    transition: border-color var(--transition-fast);
    outline: none;
}

.prompt-editor-select:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 2px var(--color-accent-light);
}

.prompt-editor-section-text {
    font-family: 'Inter', sans-serif;
    font-size: 0.8125rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
    letter-spacing: 0.01em;
}

.prompt-editor-other-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-md);
    font-size: 0.8125rem;
    cursor: pointer;
    border: none;
    background: none;
    text-align: left;
    font-family: inherit;
    transition: background var(--transition-fast);
    color: var(--color-text-secondary);
}

.prompt-editor-other-item:hover {
    background: var(--color-surface-inset);
}

.prompt-editor-other-item.active {
    background: var(--color-accent-light);
    color: var(--color-accent-text);
}


/* --------------------------------------------------------------------------
   28. Eval Dashboard
   -------------------------------------------------------------------------- */

.eval-stat-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow:
        0 1px 2px rgba(59, 124, 245, 0.03),
        0 4px 12px rgba(59, 124, 245, 0.05),
        0 8px 20px -4px rgba(59, 124, 245, 0.04);
    border: 1px solid var(--color-border);
    padding: 1.25rem;
    text-align: center;
    transition: box-shadow var(--transition-normal);
}

.eval-stat-card:hover {
    box-shadow:
        0 2px 4px rgba(59, 124, 245, 0.04),
        0 6px 16px rgba(59, 124, 245, 0.07),
        0 12px 28px -4px rgba(59, 124, 245, 0.06);
}

.eval-stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1;
}

.eval-stat-label {
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
    margin-top: 0.375rem;
}

.eval-bar {
    border-radius: 4px;
    transition: height 0.3s ease-out;
}

.eval-tab {
    padding: 0.625rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    transition: all var(--transition-fast);
    color: var(--color-text-tertiary);
    cursor: pointer;
}

.eval-tab:hover {
    color: var(--color-text-secondary);
}

.eval-tab.active {
    border-bottom-color: var(--color-accent);
    color: var(--color-accent-text);
}


/* --------------------------------------------------------------------------
   29. Login Page
   -------------------------------------------------------------------------- */

.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.login-card {
    width: 100%;
    max-width: 24rem;
    background: var(--color-surface-raised);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    padding: 2.5rem 2rem;
    animation: fade-in-up 0.4s ease-out;
}

.login-logo {
    font-size: 1.75rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--color-text);
    text-align: center;
    margin-bottom: 0.5rem;
}

.login-logo .accent {
    color: var(--color-accent-text);
}

.login-subtitle {
    font-size: 0.875rem;
    color: var(--color-text-tertiary);
    text-align: center;
    margin-bottom: 2rem;
}

.login-divider {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin: 1.5rem 0;
    color: var(--color-text-muted);
    font-size: 0.75rem;
}

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


/* --------------------------------------------------------------------------
   30. Glassmorphism utility
   -------------------------------------------------------------------------- */

.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
}


/* --------------------------------------------------------------------------
   31. Select dark mode fix
   -------------------------------------------------------------------------- */

.dark select,
.dark select option {
    background-color: #1e293b;
    color: #e2e8f0;
}


/* --------------------------------------------------------------------------
   32. Placeholder page styles
   -------------------------------------------------------------------------- */

.page-container {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
}

.page-content {
    max-width: 48rem;
    margin: 0 auto;
}

.page-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 1.5rem;
}

.settings-section {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: 1.5rem;
    margin-bottom: 1rem;
}

.settings-section-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 1rem;
}

.settings-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--color-border);
}

.settings-row:last-child {
    border-bottom: none;
}


/* --------------------------------------------------------------------------
   33. Notification badge
   -------------------------------------------------------------------------- */

.notif-badge {
    position: absolute;
    top: -2px;
    right: -2px;
    min-width: 16px;
    height: 16px;
    padding: 0 4px;
    border-radius: var(--radius-full);
    background: var(--color-danger);
    color: white;
    font-size: 0.625rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}


/* --------------------------------------------------------------------------
   34. Logo wordmark
   -------------------------------------------------------------------------- */

.logo-wordmark {
    display: inline-flex;
    align-items: baseline;
    gap: 0;
    cursor: pointer;
    transition: opacity var(--transition-fast);
    line-height: 1;
}

.logo-wordmark:hover {
    opacity: 0.75;
}

.logo-slash {
    font-family: 'Outfit', sans-serif;
    font-weight: 400;
    font-size: 1.8rem;
    color: var(--color-accent);
}

.logo-name {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    font-size: 1.8rem;
    letter-spacing: -0.03em;
    color: var(--color-text);
}

.logo-dot,
.logo-ext {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    font-size: 1.8rem;
    letter-spacing: -0.03em;
    color: var(--color-accent);
}

.logo-wordmark-lg .logo-slash,
.logo-wordmark-lg .logo-name,
.logo-wordmark-lg .logo-dot,
.logo-wordmark-lg .logo-ext {
    font-size: 2.5rem;
}


/* --------------------------------------------------------------------------
   35. Dark mode overrides (placeholder for future)
   -------------------------------------------------------------------------- */

/*
.dark {
    --color-page-bg: #111827;
    --color-surface: #1f2937;
    --color-surface-hover: #374151;
    --color-surface-active: #1f2937;
    --color-surface-inset: #111827;
    --color-surface-raised: #374151;
    --color-text: #f3f4f6;
    --color-text-secondary: #9ca3af;
    --color-text-tertiary: #6b7280;
    --color-text-muted: #4b5563;
    --color-text-placeholder: #6b7280;
    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-strong: rgba(255, 255, 255, 0.12);
    --color-accent-light: rgba(59, 124, 245, 0.15);
    --color-accent-lighter: rgba(59, 124, 245, 0.08);
    --glass-bg: rgba(31, 41, 55, 0.72);
    --glass-border: rgba(255, 255, 255, 0.08);
}
*/


/* --------------------------------------------------------------------------
   36. Component: Project Panel
   -------------------------------------------------------------------------- */

.project-item {
    display: block;
    width: 100%;
    text-align: left;
    padding: 0.375rem 0.625rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    transition: background var(--transition-fast), color var(--transition-fast);
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

.project-item:hover {
    background: var(--color-surface-inset);
    color: var(--color-text);
}

.project-item.active {
    background: var(--color-accent-light);
    color: var(--color-accent-text);
}

.project-item-muted {
    color: var(--color-text-muted);
}

.project-item-muted:hover {
    color: var(--color-text-secondary);
}

.project-edit-btn {
    opacity: 0;
    padding: 0.25rem;
    border-radius: 4px;
    color: var(--color-text-muted);
    transition: opacity var(--transition-fast), color var(--transition-fast);
    cursor: pointer;
    border: none;
    background: none;
}

.group:hover .project-edit-btn {
    opacity: 1;
}

.project-edit-btn:hover {
    color: var(--color-text-secondary);
}

.project-modal-title {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 0.75rem;
}

.project-delete-btn {
    color: var(--color-danger);
}

.project-delete-btn:hover:not(:disabled) {
    background: var(--color-danger-light);
    color: var(--color-danger);
}