/* ==========================================================================
   Euregio.Net KB - Corporate Blue Design System
   Clean, professional design matching Euregio.Net branding
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* Light Theme */
:root {
    /* Core Palette - Clean Light */
    --bg-base: #F8FAFC;
    --bg-surface: #FFFFFF;
    --bg-elevated: #F1F5F9;
    --bg-muted: #E2E8F0;

    /* Text */
    --text-primary: #1A1A2E;
    --text-secondary: #4A5568;
    --text-muted: #A0AEC0;
    --text-inverse: #FFFFFF;

    /* Primary - Euregio Blue (extracted from website) */
    --primary: #1045DB;
    --primary-hover: #0D3AB8;
    --primary-soft: #E8EDFC;
    --primary-glow: rgba(16, 69, 219, 0.25);
    --primary-dark: #0C095E;

    /* Euregio Gradients (extracted from website) */
    --gradient-brand: linear-gradient(91deg, #0C095E 0%, #1045DB 100%);
    --gradient-page: linear-gradient(180deg, #F3F8FF 0%, rgba(255, 255, 255, 0) 100%);

    /* Accent - Euregio Cyan (search button) */
    --accent: #5BC0DE;
    --accent-hover: #46B8DA;
    --accent-soft: #E8F7FB;

    /* Status - Extracted from website */
    --success: #198754;
    --success-soft: #D4EDDA;
    --error: #DD3333;
    --error-soft: #F8D7DA;
    --warning: #F59321;
    --warning-soft: #FFF3CD;

    /* Borders & Effects */
    --border: rgba(15, 23, 42, 0.08);
    --border-strong: rgba(15, 23, 42, 0.15);
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
    --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08);
    --shadow-lg: 0 12px 40px rgba(15, 23, 42, 0.12);
    --shadow-glow: 0 0 0 3px var(--primary-glow);

    /* Typography */
    --font-body: 'Inter', -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', monospace;

    /* Spacing Scale */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.5rem;
    --space-6: 2rem;
    --space-8: 3rem;
    --space-10: 4rem;

    /* Radii */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-full: 9999px;

    /* Transitions */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --duration-fast: 150ms;
    --duration-normal: 250ms;

    /* Overlay */
    --overlay-bg: rgba(0, 0, 0, 0.4);
}

/* Dark Theme */
[data-theme="dark"] {
    --bg-base: #0A1628;
    --bg-surface: #132038;
    --bg-elevated: #1E3050;
    --bg-muted: #2D4A6F;

    --text-primary: #F8FAFC;
    --text-secondary: #CBD5E1;
    --text-muted: #64748B;
    --text-inverse: #0A1628;

    --primary: #3B7DED;
    --primary-hover: #5B9BF5;
    --primary-soft: rgba(59, 125, 237, 0.2);
    --primary-glow: rgba(59, 125, 237, 0.3);
    --primary-dark: #0C095E;

    --accent: #6DCEEB;
    --accent-hover: #8DDAF1;
    --accent-soft: rgba(109, 206, 235, 0.15);

    --success: #2ECC71;
    --success-soft: rgba(46, 204, 113, 0.15);
    --error: #E74C3C;
    --error-soft: rgba(231, 76, 60, 0.15);
    --warning: #F5A623;
    --warning-soft: rgba(245, 166, 35, 0.15);

    --border: rgba(248, 250, 252, 0.08);
    --border-strong: rgba(248, 250, 252, 0.15);
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.5);

    /* Dark theme gradients */
    --gradient-brand: linear-gradient(91deg, #0C095E 0%, #1E5AE8 100%);
    --gradient-page: linear-gradient(180deg, #0D1A2D 0%, rgba(10, 22, 40, 0) 100%);

    --overlay-bg: rgba(0, 0, 0, 0.6);
}

/* ==========================================================================
   Base Styles
   ========================================================================== */

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background: var(--bg-base);
    background-image: var(--gradient-page);
    background-attachment: fixed;
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

::selection {
    background: var(--primary);
    color: var(--text-inverse);
}

/* ==========================================================================
   Layout
   ========================================================================== */

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

.container {
    width: 100%;
    max-width: 860px;
    margin: 0 auto;
    padding: 0 var(--space-5);
}

.container--wide {
    max-width: 1100px;
}

/* ==========================================================================
   Header - Euregio Blue Style
   ========================================================================== */

.header {
    padding: var(--space-4) 0;
    background: var(--gradient-brand);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-md);
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
}

.header__brand {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    text-decoration: none;
    color: var(--text-inverse);
}

.header__logo {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    object-fit: contain;
}

.header__title {
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: white;
}

.header__subtitle {
    font-size: 0.7rem;
    color: rgba(255, 255, 255, 0.8);
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.header__nav {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    transition: all var(--duration-fast) var(--ease-out);
    border: none;
    background: transparent;
    cursor: pointer;
}

.nav-link:hover {
    color: white;
    background: rgba(255, 255, 255, 0.15);
}

.nav-link--active {
    color: white;
    background: rgba(255, 255, 255, 0.2);
}

.nav-link svg {
    width: 18px;
    height: 18px;
    opacity: 0.85;
}

/* Theme Toggle */
.theme-toggle {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.1);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--duration-fast) var(--ease-out);
}

.theme-toggle:hover {
    background: rgba(255, 255, 255, 0.2);
}

.theme-toggle svg {
    width: 18px;
    height: 18px;
}

[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }
.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: block; }

/* ==========================================================================
   Contact Bar (for public users)
   ========================================================================== */

.contact-bar {
    display: flex;
    justify-content: center;
    gap: var(--space-6);
    padding: var(--space-3) var(--space-5);
    background: var(--primary);
    flex-wrap: wrap;
}

.contact-item {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.85rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
}

.contact-item svg {
    color: white;
    opacity: 0.8;
}

.contact-item a {
    color: white;
    text-decoration: none;
    transition: opacity var(--duration-fast);
}

.contact-item a:hover {
    opacity: 0.8;
    text-decoration: underline;
}

/* ==========================================================================
   Main Content
   ========================================================================== */

.main {
    flex: 1;
    padding: var(--space-6) 0;
}

/* ==========================================================================
   Cards
   ========================================================================== */

.card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.card--elevated {
    box-shadow: var(--shadow-md);
}

.card__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-5);
    border-bottom: 1px solid var(--border);
    background: var(--bg-elevated);
}

.card__title {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-secondary);
}

.card__title-icon {
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: var(--radius-full);
}

.card__body {
    padding: var(--space-5);
}

/* ==========================================================================
   Form Elements
   ========================================================================== */

.form-group {
    margin-bottom: var(--space-5);
}

.form-label {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-2);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-label__icon {
    color: var(--text-muted);
}

.input {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-family: inherit;
    font-size: 1rem;
    color: var(--text-primary);
    background: var(--bg-surface);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-md);
    transition: all var(--duration-fast) var(--ease-out);
}

.input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: var(--shadow-glow);
}

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

.textarea {
    min-height: 120px;
    resize: vertical;
    line-height: 1.7;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    font-family: inherit;
    font-size: 0.9375rem;
    font-weight: 600;
    line-height: 1;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-out);
}

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

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

.btn--primary {
    background: var(--primary);
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn--primary:hover:not(:disabled) {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

.btn--accent {
    background: var(--accent);
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn--accent:hover:not(:disabled) {
    background: var(--accent-hover);
    transform: translateY(-1px);
}

.btn--secondary {
    background: var(--bg-surface);
    color: var(--text-secondary);
    border: 1px solid var(--border-strong);
}

.btn--secondary:hover:not(:disabled) {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-soft);
}

.btn--ghost {
    background: transparent;
    color: var(--text-secondary);
    padding: var(--space-2);
}

.btn--ghost:hover:not(:disabled) {
    color: var(--primary);
    background: var(--primary-soft);
}

.btn--large {
    padding: var(--space-4) var(--space-6);
    font-size: 1rem;
}

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

/* Loading state for buttons */
.btn.loading .btn-text,
.btn.loading svg:not(.btn-loader) {
    opacity: 0;
}

.btn.loading .btn-loader {
    opacity: 1;
}

.btn-loader {
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    opacity: 0;
    animation: spin 0.8s linear infinite;
}

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

/* ==========================================================================
   Language Selector
   ========================================================================== */

.lang-selector {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.lang-selector__label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

.lang-selector__options {
    display: flex;
    background: var(--bg-elevated);
    border-radius: var(--radius-sm);
    padding: 3px;
    gap: 2px;
}

.lang-option {
    display: none;
}

.lang-option + label {
    padding: var(--space-2) var(--space-3);
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-muted);
    border-radius: calc(var(--radius-sm) - 2px);
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-out);
}

.lang-option + label:hover {
    color: var(--text-secondary);
}

.lang-option:checked + label {
    background: var(--bg-surface);
    color: var(--primary);
    box-shadow: var(--shadow-sm);
}

/* ==========================================================================
   Chat Interface - Modern Floating Input Layout
   ========================================================================== */

/* Chat page layout */
.main--chat {
    display: flex;
    flex-direction: column;
    padding: 0;
    overflow: visible;
    position: relative;
}

/* Hide footer on chat page - more space for chat */
.main--chat ~ .footer {
    display: none;
}

.chat-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: visible;
    padding-top: var(--space-4);
    padding-bottom: 160px; /* Space for floating input card */
    min-height: 0;
}

/* Empty state - center everything */
.chat-container--empty .chat-area {
    display: none;
}

/* Welcome text above input when empty */
.chat-welcome {
    text-align: center;
    margin-bottom: var(--space-5);
    display: none;
}


.chat-welcome__title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.chat-welcome__subtitle {
    font-size: 0.9375rem;
    color: var(--text-secondary);
}

.chat-welcome .limit-info {
    display: inline-block;
    font-size: 0.8rem;
    font-family: var(--font-mono);
    color: var(--primary);
    background: var(--primary-soft);
    padding: var(--space-1) var(--space-4);
    border-radius: var(--radius-sm);
    margin-top: var(--space-3);
}

.chat-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    min-height: 300px;
}

.chat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--border);
    background: var(--bg-elevated);
    flex-shrink: 0;
}

.chat-header__title {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-secondary);
}

.chat-header__icon {
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: var(--radius-full);
}

.chat-header__actions {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.chat-header__actions .btn__label {
    display: inline;
}

@media (max-width: 480px) {
    .chat-header__actions .btn__label {
        display: none;
    }
}

.btn--ghost {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--duration-fast);
}

.btn--ghost:hover {
    color: var(--text-primary);
    background: var(--bg-surface);
    border-color: var(--border-strong);
}

.chat-messages {
    flex: 1;
    padding: var(--space-5);
    padding-bottom: var(--space-8);
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    overflow-y: auto;
    scroll-behavior: smooth;
}

.chat__empty {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--space-8);
    color: var(--text-muted);
}

.chat__empty-icon {
    margin-bottom: var(--space-4);
    opacity: 0.4;
    color: var(--text-muted);
}

.chat__empty p {
    font-size: 1rem;
    margin-bottom: var(--space-2);
}

.chat__empty .limit-info {
    font-size: 0.8rem;
    font-family: var(--font-mono);
    color: var(--primary);
    background: var(--primary-soft);
    padding: var(--space-1) var(--space-4);
    border-radius: var(--radius-sm);
    margin-top: var(--space-3);
}

/* Floating Input - Fixed at bottom, centered card */
.chat-input-wrapper {
    position: fixed;
    bottom: var(--space-4);
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - var(--space-8));
    max-width: 700px;
    padding: 0;
    z-index: 100;
}

.chat-input-wrapper .chat-input {
    box-shadow: var(--shadow-lg);
}

/* Centered input when empty - must come after base styles */
.chat-input-wrapper--centered {
    top: 50%;
    bottom: auto;
    transform: translate(-50%, -50%);
}

.chat-input-wrapper--centered .chat-welcome {
    display: block;
}

.chat-input {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.chat-input__main {
    display: flex;
    align-items: flex-end;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
}

.chat-input__textarea {
    flex: 1;
    resize: none;
    border: none;
    outline: none;
    background: transparent;
    font-family: inherit;
    font-size: 1rem;
    line-height: 1.5;
    color: var(--text-primary);
    min-height: 24px;
    max-height: 200px;
    padding: var(--space-2) 0;
}

.chat-input__textarea::placeholder {
    color: var(--text-muted);
}

.chat-input__send {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--duration-fast);
    flex-shrink: 0;
}

.chat-input__send:hover:not(:disabled) {
    background: var(--primary-hover);
    transform: scale(1.05);
}

.chat-input__send:disabled {
    background: var(--bg-elevated);
    color: var(--text-muted);
    cursor: not-allowed;
    opacity: 0.6;
}

.chat-input__send svg {
    width: 18px;
    height: 18px;
}

.chat-input__send .btn-loader {
    display: none;
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.chat-input__send.loading .btn-loader {
    display: block;
}

.chat-input__send.loading svg {
    display: none;
}

.chat-input__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-2) var(--space-4);
    background: var(--bg-elevated);
    border-top: 1px solid var(--border);
}

.chat-input__footer .lang-selector {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.chat-input__footer .lang-selector label {
    padding: var(--space-1) var(--space-2);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-muted);
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--duration-fast);
}

.chat-input__footer .lang-selector input:checked + label {
    color: var(--primary);
    background: var(--primary-soft);
    border-color: var(--primary);
}

.chat-input__footer .lang-selector input {
    display: none;
}

.chat-input__hint {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Trust indicator for assistant messages */
.message__trust {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-top: var(--space-3);
    padding-top: var(--space-3);
    border-top: 1px solid var(--border);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.message__trust svg {
    width: 14px;
    height: 14px;
    color: var(--success);
}

/* Markdown rendering in messages */
.message__content .md-h2 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: var(--space-4) 0 var(--space-3) 0;
    padding-bottom: var(--space-2);
    border-bottom: 2px solid var(--primary);
}

.message__content .md-h2:first-child {
    margin-top: 0;
}

.message__content .md-h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: var(--space-4) 0 var(--space-2) 0;
    padding-bottom: var(--space-1);
    border-bottom: 1px solid var(--border);
}

.message__content .md-h3:first-child {
    margin-top: 0;
}

.message__content .md-h4 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: var(--space-3) 0 var(--space-2) 0;
}

.message__content ul.md-list {
    margin: var(--space-2) 0;
    padding-left: var(--space-5);
    list-style-type: disc;
}

.message__content ol.md-list {
    margin: var(--space-2) 0;
    padding-left: var(--space-5);
    list-style-type: decimal;
}

.message__content .md-list li {
    margin-bottom: var(--space-1);
    line-height: 1.6;
}

.message__content .code-block {
    background: var(--bg-base);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--space-3);
    margin: var(--space-3) 0;
    overflow-x: auto;
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    line-height: 1.5;
}

.message__content .code-block code {
    background: none;
    padding: 0;
    color: var(--text-primary);
}

.message__content .inline-code {
    background: var(--bg-muted);
    padding: 0.125em 0.375em;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.875em;
    color: var(--primary);
}

/* Dark theme adjustments for code */
[data-theme="dark"] .message__content .code-block {
    background: var(--bg-base);
}

[data-theme="dark"] .message__content .inline-code {
    background: var(--bg-muted);
}

/* Legacy chat styles for compatibility */
.chat {
    display: flex;
    flex-direction: column;
    min-height: 400px;
}

.chat__messages {
    flex: 1;
    padding: var(--space-5);
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    overflow-y: auto;
}

.message {
    max-width: 85%;
    animation: messageSlide 0.3s var(--ease-out);
}

@keyframes messageSlide {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message--user {
    align-self: flex-end;
}

.message--assistant {
    align-self: flex-start;
}

.message__label {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: var(--space-2);
    padding: 0 var(--space-2);
}

.message--user .message__label {
    text-align: right;
}

.message__content {
    padding: var(--space-4);
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    line-height: 1.7;
}

.message--user .message__content {
    background: var(--primary);
    color: white;
    border-bottom-right-radius: var(--radius-sm);
}

.message--assistant .message__content {
    background: var(--bg-elevated);
    color: var(--text-primary);
    border-bottom-left-radius: var(--radius-sm);
    border: 1px solid var(--border);
}

.message__content p {
    margin-bottom: var(--space-2);
}

.message__content p:last-child {
    margin-bottom: 0;
}

.message__content strong {
    font-weight: 600;
}

.message__actions {
    display: flex;
    gap: var(--space-2);
    margin-top: var(--space-2);
    padding: 0 var(--space-2);
    opacity: 0;
    transition: opacity var(--duration-fast);
}

.message:hover .message__actions {
    opacity: 1;
}

.action-btn {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-out);
}

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

.action-btn.copied {
    background: var(--success-soft);
    border-color: var(--success);
    color: var(--success);
}

/* Message Sources */
.message__sources {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-1);
    margin-top: var(--space-3);
    padding-top: var(--space-3);
    border-top: 1px solid var(--border);
}

.message__source-tag {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--primary);
    background: var(--primary-soft);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    text-decoration: none;
    transition: all var(--duration-fast);
}

.message__source-tag:hover {
    background: var(--primary);
    color: white;
}

/* Loading dots */
.loading-dots {
    display: flex;
    gap: 6px;
    padding: var(--space-2) 0;
}

.loading-dots span {
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: var(--radius-full);
    animation: loadingPulse 1.4s infinite ease-in-out both;
}

.loading-dots span:nth-child(1) { animation-delay: -0.32s; }
.loading-dots span:nth-child(2) { animation-delay: -0.16s; }

.loading-status {
    font-size: 0.85rem;
    color: var(--text-muted, #888);
}

.loading-status:empty {
    display: none;
}

@keyframes loadingPulse {
    0%, 80%, 100% {
        transform: scale(0.6);
        opacity: 0.4;
    }
    40% {
        transform: scale(1);
        opacity: 1;
    }
}

/* ==========================================================================
   Login Required Section
   ========================================================================== */

.login-required {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
}

.login-required__card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    text-align: center;
    max-width: 400px;
}

.login-required__icon {
    color: var(--text-muted);
    margin-bottom: var(--space-5);
}

.login-required__card h2 {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.login-required__card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: var(--space-6);
}

/* ==========================================================================
   KB Browser
   ========================================================================== */

.kb-controls {
    display: flex;
    gap: var(--space-3);
    margin-bottom: var(--space-5);
    flex-wrap: wrap;
}

.kb-search {
    flex: 1;
    min-width: 200px;
}

.kb-filter {
    min-width: 180px;
}

.select {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    padding-right: var(--space-8);
    font-family: inherit;
    font-size: 0.9375rem;
    color: var(--text-primary);
    background: var(--bg-surface);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-md);
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748B' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--space-3) center;
    transition: all var(--duration-fast) var(--ease-out);
}

.select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: var(--shadow-glow);
}

.kb-count {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-bottom: var(--space-4);
}

.kb-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.kb-item {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all var(--duration-fast) var(--ease-out);
}

.kb-item:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.kb-item__header {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4);
    cursor: pointer;
}

.kb-item__header:hover {
    background: var(--bg-elevated);
}

.kb-item__checkbox {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
    cursor: pointer;
}

.kb-item__info {
    flex: 1;
    min-width: 0;
}

.kb-item__title {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--space-1);
}

.kb-item__category {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--primary);
    background: var(--primary-soft);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-sm);
}

.kb-item__toggle {
    color: var(--text-muted);
    transition: transform var(--duration-fast) var(--ease-out);
}

.kb-item.expanded .kb-item__toggle {
    transform: rotate(180deg);
}

.kb-item__visibility {
    padding: var(--space-2);
    border-radius: var(--radius-sm);
    border: none;
    background: transparent;
    font-size: 1rem;
    cursor: pointer;
    opacity: 0.6;
    transition: all var(--duration-fast);
}

.kb-item__visibility:hover {
    opacity: 1;
    transform: scale(1.1);
}

.kb-item__visibility--public {
    opacity: 1;
}

.kb-item__content {
    display: none;
    padding: var(--space-5);
    background: var(--bg-elevated);
    border-top: 1px solid var(--border);
}

.kb-item.expanded .kb-item__content {
    display: block;
    animation: slideDown 0.2s var(--ease-out);
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.kb-section {
    margin-bottom: var(--space-5);
}

.kb-section:last-child {
    margin-bottom: 0;
}

.kb-section__label {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--primary);
    margin-bottom: var(--space-2);
}

.kb-section__content {
    font-size: 0.9375rem;
    line-height: 1.8;
    color: var(--text-secondary);
}

.kb-section__content p {
    margin: 0 0 0.75em 0;
}

.kb-section__content p:last-child {
    margin-bottom: 0;
}

.kb-section__content .inline-code,
.kb-section__content code:not(.code-block code) {
    background: var(--bg-muted);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.85em;
    color: var(--primary);
}

.kb-section__content .code-block,
.kb-section__content pre {
    background: var(--bg-base);
    border: 1px solid var(--border);
    padding: var(--space-4);
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin: 0.75em 0;
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    line-height: 1.5;
}

.kb-section__content .code-block code,
.kb-section__content pre code {
    background: none;
    padding: 0;
    color: var(--text-primary);
}

.kb-section__content ul, .kb-section__content ol {
    margin: 0.5em 0;
    padding-left: 1.5em;
}

.kb-section__content li {
    margin: 0.25em 0;
}

.kb-section__content a {
    color: var(--primary);
    text-decoration: none;
}

.kb-section__content a:hover {
    text-decoration: underline;
}

.kb-section__content strong {
    color: var(--text-primary);
    font-weight: 600;
}

.kb-section__content blockquote {
    border-left: 3px solid var(--primary);
    margin: 0.75em 0;
    padding-left: var(--space-4);
    color: var(--text-muted);
}

.kb-item__actions {
    display: flex;
    gap: var(--space-3);
    margin-top: var(--space-5);
    padding-top: var(--space-5);
    border-top: 1px solid var(--border);
}

/* Bulk Action Bar */
.bulk-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-surface);
    border-top: 1px solid var(--border);
    padding: var(--space-4);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-5);
    transform: translateY(100%);
    transition: transform var(--duration-normal) var(--ease-out);
    box-shadow: var(--shadow-lg);
    z-index: 100;
}

.bulk-bar.visible {
    transform: translateY(0);
}

.bulk-bar__count {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.bulk-bar__actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.bulk-bar__separator {
    width: 1px;
    height: 24px;
    background: var(--border);
}

/* Extra bottom padding when bulk bar is visible */
.main--with-bulk {
    padding-bottom: 100px;
}

/* ==========================================================================
   Stats Dashboard
   ========================================================================== */

.stats-hero {
    background: var(--gradient-brand);
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    text-align: center;
    color: white;
    margin-bottom: var(--space-6);
    box-shadow: var(--shadow-lg);
}

.stats-hero__value {
    font-family: var(--font-mono);
    font-size: 4rem;
    font-weight: 700;
    line-height: 1;
    margin-bottom: var(--space-2);
}

.stats-hero__label {
    font-size: 1rem;
    opacity: 0.9;
}

.stats-hero__period {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    opacity: 0.7;
    margin-top: var(--space-4);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.stat-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--space-5);
    text-align: center;
    transition: all var(--duration-fast) var(--ease-out);
}

.stat-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-glow);
}

.stat-card__icon {
    font-size: 1.5rem;
    margin-bottom: var(--space-3);
}

.stat-card__value {
    font-family: var(--font-mono);
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--primary);
    line-height: 1;
    margin-bottom: var(--space-2);
}

.stat-card__label {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.stat-card__trend {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    margin-top: var(--space-2);
}

.stat-card__trend--up {
    color: var(--success);
}

.stat-card__trend--down {
    color: var(--error);
}

.chart-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--space-6);
}

.chart-card__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-5);
    border-bottom: 1px solid var(--border);
    background: var(--bg-elevated);
}

.chart-card__title {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-secondary);
}

.chart-card__title-dot {
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: var(--radius-full);
}

.chart-card__body {
    padding: var(--space-5);
}

/* Bar chart */
.bar-chart {
    display: flex;
    align-items: flex-end;
    justify-content: space-around;
    height: 200px;
    padding: var(--space-4);
    gap: var(--space-2);
}

.bar-chart__item {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1;
    max-width: 60px;
}

.bar-chart__bar {
    width: 100%;
    background: linear-gradient(to top, var(--primary), var(--primary-hover));
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
    transition: all var(--duration-normal) var(--ease-out);
    position: relative;
}

.bar-chart__bar:hover {
    filter: brightness(1.1);
}

.bar-chart__bar::after {
    content: attr(data-value);
    position: absolute;
    top: -24px;
    left: 50%;
    transform: translateX(-50%);
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--text-secondary);
    opacity: 0;
    transition: opacity var(--duration-fast);
}

.bar-chart__bar:hover::after {
    opacity: 1;
}

.bar-chart__label {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    color: var(--text-muted);
    margin-top: var(--space-2);
}

/* Language pills */
.lang-stats {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
}

.lang-pill {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    background: var(--bg-elevated);
    border-radius: var(--radius-md);
    flex: 1;
    min-width: 120px;
}

.lang-pill__flag {
    font-size: 1.5rem;
}

.lang-pill__info {
    display: flex;
    flex-direction: column;
}

.lang-pill__pct {
    font-family: var(--font-mono);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
}

.lang-pill__name {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Top articles list */
.top-list {
    list-style: none;
}

.top-list__item {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4);
    border-bottom: 1px solid var(--border);
    transition: background var(--duration-fast);
}

.top-list__item:hover {
    background: var(--bg-elevated);
}

.top-list__item:last-child {
    border-bottom: none;
}

.top-list__rank {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    background: var(--bg-elevated);
    border-radius: var(--radius-sm);
}

.top-list__item:nth-child(1) .top-list__rank {
    background: var(--accent);
    color: white;
}

.top-list__item:nth-child(2) .top-list__rank,
.top-list__item:nth-child(3) .top-list__rank {
    background: var(--accent-soft);
    color: var(--accent);
}

.top-list__title {
    flex: 1;
    font-size: 0.9375rem;
    color: var(--text-primary);
}

.top-list__count {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    color: var(--accent);
    background: var(--accent-soft);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
}

/* ==========================================================================
   Settings Panel
   ========================================================================== */

.settings-overlay {
    position: fixed;
    inset: 0;
    background: var(--overlay-bg);
    backdrop-filter: blur(4px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
    z-index: 200;
}

.settings-overlay.visible {
    opacity: 1;
    pointer-events: auto;
}

.settings-panel {
    position: fixed;
    top: 0;
    right: 0;
    width: 360px;
    max-width: 100%;
    height: 100%;
    background: var(--bg-surface);
    border-left: 1px solid var(--border);
    transform: translateX(100%);
    transition: transform 0.3s ease;
    z-index: 201;
    display: flex;
    flex-direction: column;
}

.settings-panel.visible {
    transform: translateX(0);
}

.settings-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-5);
    border-bottom: 1px solid var(--border);
    background: var(--gradient-brand);
}

.settings-title {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: 600;
    color: white;
}

.settings-title svg {
    color: rgba(255, 255, 255, 0.8);
}

.settings-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all var(--duration-fast);
}

.settings-close:hover {
    background: rgba(255, 255, 255, 0.2);
}

.settings-content {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-5);
}

.setting-group {
    margin-bottom: var(--space-6);
}

.setting-group.hidden {
    display: none;
}

.setting-label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-4);
}

.setting-options {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.setting-options.compact .setting-option {
    padding: var(--space-2) var(--space-4);
}

.setting-options.compact .setting-option-desc {
    display: none;
}

.setting-option {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
    padding: var(--space-4);
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--duration-fast);
}

.setting-option:hover {
    border-color: var(--primary);
}

.setting-option input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.setting-option input:checked + .setting-option-content::before {
    content: '';
    position: absolute;
    left: calc(-1 * var(--space-4) - 8px);
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
}

.setting-option input:checked ~ .setting-option-content {
    color: var(--text-primary);
}

.setting-option-content {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.setting-option-name {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color var(--duration-fast);
}

.setting-option input:checked + .setting-option-content .setting-option-name {
    color: var(--text-primary);
}

.setting-option-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Toggle Switch */
.setting-toggle {
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.setting-toggle input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-switch {
    position: relative;
    width: 44px;
    height: 24px;
    background: var(--bg-muted);
    border-radius: 12px;
    cursor: pointer;
    transition: background var(--duration-fast);
    flex-shrink: 0;
    border: 1px solid var(--border);
}

.toggle-knob {
    position: absolute;
    top: 2px;
    left: 2px;
    width: 18px;
    height: 18px;
    background: white;
    border-radius: 50%;
    transition: transform var(--duration-fast);
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.setting-toggle input[type="checkbox"]:checked + .toggle-switch {
    background: var(--success);
    border-color: var(--success);
}

.setting-toggle input[type="checkbox"]:checked + .toggle-switch .toggle-knob {
    transform: translateX(20px);
}

.setting-toggle .setting-option-content {
    flex: 1;
}

.setting-toggle .setting-option-content::before {
    display: none;
}

.setting-group-admin {
    margin-top: var(--space-5);
    padding-top: var(--space-5);
    border-top: 1px solid var(--border);
}

.settings-footer {
    padding: var(--space-5);
    border-top: 1px solid var(--border);
    background: var(--bg-elevated);
}

.current-model {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    text-align: center;
}

.current-model strong {
    color: var(--primary);
}

/* ==========================================================================
   Error Toast
   ========================================================================== */

.error-toast {
    position: fixed;
    bottom: var(--space-6);
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--bg-surface);
    border: 1px solid var(--error);
    border-radius: var(--radius-md);
    padding: var(--space-4) var(--space-5);
    display: flex;
    align-items: center;
    gap: var(--space-5);
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s ease;
    z-index: 100;
    box-shadow: var(--shadow-lg);
}

.error-toast.visible {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
    pointer-events: auto;
}

.error-content {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--error);
    font-size: 0.9rem;
}

.error-link {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--primary);
    text-decoration: none;
    padding: var(--space-2) var(--space-4);
    border: 1px solid var(--primary);
    border-radius: var(--radius-sm);
    transition: all var(--duration-fast);
}

.error-link:hover {
    background: var(--primary);
    color: white;
}

/* ==========================================================================
   Toast Notifications
   ========================================================================== */

.toast {
    position: fixed;
    bottom: var(--space-6);
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--bg-surface);
    border: 1px solid var(--success);
    border-radius: var(--radius-md);
    padding: var(--space-4) var(--space-5);
    color: var(--success);
    font-size: 0.9rem;
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s ease;
    z-index: 400;
    box-shadow: var(--shadow-lg);
}

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

.toast.error {
    border-color: var(--error);
    color: var(--error);
}

/* ==========================================================================
   Modal
   ========================================================================== */

.modal-overlay {
    position: fixed;
    inset: 0;
    background: var(--overlay-bg);
    backdrop-filter: blur(4px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
    z-index: 300;
}

.modal-overlay.visible {
    opacity: 1;
    pointer-events: auto;
}

.modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.95);
    width: 90%;
    max-width: 700px;
    max-height: 85vh;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    opacity: 0;
    pointer-events: none;
    transition: all 0.2s ease;
    z-index: 301;
    display: flex;
    flex-direction: column;
}

.modal.visible {
    opacity: 1;
    pointer-events: auto;
    transform: translate(-50%, -50%) scale(1);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-5);
    border-bottom: 1px solid var(--border);
}

.modal-title {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    border-radius: var(--radius-sm);
}

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

.modal-body {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-5);
}

.modal-field {
    margin-bottom: var(--space-5);
}

.modal-label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    margin-bottom: var(--space-2);
}

.modal-input {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
}

.modal-textarea {
    min-height: 120px;
    resize: vertical;
    line-height: 1.6;
}

.modal-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: var(--shadow-glow);
}

.modal-select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748B' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-3);
    padding: var(--space-5);
    border-top: 1px solid var(--border);
    background: var(--bg-elevated);
}

/* ==========================================================================
   Footer - Euregio Blue Style
   ========================================================================== */

.footer {
    padding: var(--space-6) 0;
    background: var(--gradient-brand);
    color: white;
    margin-top: auto;
}

.footer__inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
    text-align: center;
}

.footer__links {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    flex-wrap: wrap;
    justify-content: center;
}

.footer__link {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color var(--duration-fast);
}

.footer__link:hover {
    color: white;
}

.footer__separator {
    color: rgba(255, 255, 255, 0.3);
    font-size: 0.75rem;
}

.footer__copyright {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.7);
}

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

.footer__copyright a:hover {
    text-decoration: underline;
}

/* ==========================================================================
   Utilities
   ========================================================================== */

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

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

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

.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }

/* ==========================================================================
   Scrollbar
   ========================================================================== */

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-surface);
}

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

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

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 640px) {
    .header .container {
        padding: 0 var(--space-4);
    }

    .header__inner {
        flex-wrap: wrap;
    }

    .header__nav {
        width: 100%;
        justify-content: flex-end;
        margin-top: var(--space-3);
    }

    .contact-bar {
        gap: var(--space-4);
        flex-direction: column;
        align-items: center;
    }

    .container {
        padding: 0 var(--space-4);
    }

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

    .message {
        max-width: 95%;
    }

    .footer__links {
        gap: var(--space-3);
    }

    .error-toast {
        left: var(--space-4);
        right: var(--space-4);
        transform: translateX(0) translateY(100px);
    }

    .error-toast.visible {
        transform: translateX(0) translateY(0);
    }

    .bulk-bar {
        flex-wrap: wrap;
        gap: var(--space-3);
        padding: var(--space-3);
    }

    .bulk-bar__actions {
        flex-wrap: wrap;
        justify-content: center;
    }

    .stats-hero__value {
        font-size: 2.5rem;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Chat layout mobile */
    .chat-container {
        padding-top: var(--space-2);
    }

    .chat-area {
        margin-bottom: var(--space-2);
        border-radius: var(--radius-md);
    }

    .chat-header {
        padding: var(--space-2) var(--space-3);
    }

    .chat-header__title {
        font-size: 0.7rem;
    }

    .btn--ghost {
        padding: var(--space-1) var(--space-2);
        font-size: 0.75rem;
    }

    .chat-messages {
        padding: var(--space-3);
    }

    .chat-input-wrapper {
        padding: var(--space-3) 0;
    }

    .chat-input {
        border-radius: var(--radius-md);
    }

    .chat-input__main {
        padding: var(--space-2) var(--space-3);
    }

    .chat-input__textarea {
        font-size: 16px; /* Prevents iOS zoom */
    }

    .chat-input__footer {
        flex-direction: column;
        gap: var(--space-2);
        align-items: stretch;
        padding: var(--space-2) var(--space-3);
    }

    .chat-input__footer .lang-selector {
        justify-content: center;
    }

    .chat-input__hint {
        text-align: center;
    }

    .message__trust {
        font-size: 0.7rem;
    }

    /* Floating input on mobile */
    .chat-input-wrapper {
        bottom: var(--space-3);
        width: calc(100% - var(--space-6));
    }

    /* Chat container on mobile */
    .chat-container {
        padding-bottom: 150px;
    }

    .chat-welcome__title {
        font-size: 1.25rem;
    }

    .chat-welcome__subtitle {
        font-size: 0.875rem;
    }
}

/* ==========================================================================
   iOS Virtual Keyboard Fix
   Uses dynamic viewport height (dvh) when supported
   ========================================================================== */

@supports (height: 100dvh) {
    body {
        min-height: 100dvh;
    }

    .page {
        min-height: 100dvh;
    }
}