/* ApixBot.ai - Wine Red & Charcoal Black Theme */
:root {
    /* Primary Colors - Wine Red */
    --wine-50: #fdf2f4;
    --wine-100: #fce7eb;
    --wine-200: #f9d0d9;
    --wine-300: #f4a9ba;
    --wine-400: #ec7894;
    --wine-500: #df4d70;
    --wine-600: #c9305a;
    --wine-700: #a82448;
    --wine-800: #8b1538;
    --wine-900: #4a0d1f;
    
    /* Charcoal Black */
    --charcoal-50: #f6f6f6;
    --charcoal-100: #e7e7e7;
    --charcoal-200: #d1d1d1;
    --charcoal-300: #b0b0b0;
    --charcoal-400: #888888;
    --charcoal-500: #6d6d6d;
    --charcoal-600: #5d5d5d;
    --charcoal-700: #4f4f4f;
    --charcoal-800: #454545;
    --charcoal-900: #1a1a1a;
    --charcoal-950: #0d0d0d;
    
    /* Cream/Off-White Accents */
    --cream-50: #faf8f5;
    --cream-100: #f5f0e8;
    --cream-200: #e8dfd1;
    --cream-300: #d4c5b0;
    
    /* Theme Application */
    --bg-primary: #0d0d0d;
    --bg-secondary: #141414;
    --bg-tertiary: #1a1a1a;
    --bg-elevated: #222222;
    --bg-card: #1e1e1e;
    
    --text-primary: #f5f0e8;
    --text-secondary: #b0b0b0;
    --text-muted: #6d6d6d;
    --text-accent: #e8dfd1;
    
    --accent-primary: #8b1538;
    --accent-secondary: #a82448;
    --accent-hover: #c9305a;
    --accent-glow: rgba(139, 21, 56, 0.4);
    
    --border-subtle: rgba(139, 21, 56, 0.15);
    --border-medium: rgba(139, 21, 56, 0.3);
    
    /* Typography */
    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', -apple-system, sans-serif;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 0.75rem;
    --space-lg: 1rem;
    --space-xl: 1.5rem;
    --space-2xl: 2rem;
    --space-3xl: 3rem;
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.5);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.6);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.7);
    --shadow-glow: 0 0 30px var(--accent-glow);
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    touch-action: manipulation;
}

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    overflow-x: hidden;
}

/* Texture Overlay */
.texture-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
    opacity: 0.03;
    pointer-events: none;
    z-index: 1;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--wine-800);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--wine-700);
}

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

/* Auth Screen */
.auth-screen {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--bg-primary) 0%, #0a0505 50%, var(--wine-900) 100%);
    position: relative;
    padding: var(--space-lg);
}

.auth-container {
    width: 100%;
    max-width: 420px;
    padding: var(--space-2xl);
    position: relative;
    z-index: 2;
    background: rgba(20, 20, 20, 0.8);
    border: 1px solid var(--border-subtle);
    border-radius: 20px;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-lg);
}

.auth-brand {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.brand-logo {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-lg);
    position: relative;
}

.logo-svg {
    width: 100%;
    height: 100%;
    filter: drop-shadow(0 0 20px var(--accent-glow));
    animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.9; transform: scale(1.02); }
}

.brand-name {
    font-family: var(--font-display);
    font-size: 2.25rem;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: 0.02em;
    margin-bottom: var(--space-sm);
}

.brand-tagline {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 300;
}

/* Auth Tabs */
.auth-tabs {
    display: flex;
    gap: var(--space-xs);
    margin-bottom: var(--space-xl);
    background: var(--bg-tertiary);
    padding: 4px;
    border-radius: 12px;
    border: 1px solid var(--border-subtle);
}

.auth-tab {
    flex: 1;
    padding: var(--space-sm) var(--space-md);
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: 8px;
    transition: all var(--transition-base);
}

.auth-tab.active {
    background: linear-gradient(135deg, var(--wine-800) 0%, var(--wine-700) 100%);
    color: var(--text-primary);
    box-shadow: var(--shadow-sm);
}

.auth-tab:hover:not(.active) {
    color: var(--text-primary);
    background: rgba(139, 21, 56, 0.1);
}

/* Auth Forms */
.auth-form {
    display: none;
    animation: fadeIn 0.3s ease;
}

.auth-form.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

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

.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--space-xs);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.form-group input {
    width: 100%;
    padding: var(--space-md) var(--space-lg);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: all var(--transition-base);
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

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

.input-hint {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: var(--space-xs);
}

.auth-btn {
    width: 100%;
    padding: var(--space-md);
    border: none;
    border-radius: 12px;
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    margin-top: var(--space-sm);
}

.auth-btn.primary {
    background: linear-gradient(135deg, var(--wine-800) 0%, var(--wine-700) 100%);
    color: var(--text-primary);
    box-shadow: var(--shadow-md);
}

.auth-btn.primary:hover {
    background: linear-gradient(135deg, var(--wine-700) 0%, var(--wine-600) 100%);
    transform: translateY(-1px);
    box-shadow: var(--shadow-glow);
}

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

.auth-btn.secondary:hover {
    background: rgba(139, 21, 56, 0.1);
    color: var(--text-primary);
    border-color: var(--accent-primary);
}

.auth-divider {
    display: flex;
    align-items: center;
    margin: var(--space-xl) 0;
    color: var(--text-muted);
    font-size: 0.85rem;
}

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

.auth-divider span {
    padding: 0 var(--space-md);
}

.auth-note {
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: var(--space-sm);
}

.auth-error {
    color: var(--wine-400);
    font-size: 0.85rem;
    margin-top: var(--space-sm);
    text-align: center;
    min-height: 1.5em;
}

/* Onboarding Screen */
.onboarding-screen {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    padding: var(--space-lg);
    position: relative;
}

.onboarding-container {
    width: 100%;
    max-width: 700px;
    position: relative;
    z-index: 2;
}

.onboarding-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.step-indicator {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.step-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    transition: all var(--transition-base);
}

.step-dot.active {
    background: var(--wine-700);
    border-color: var(--wine-600);
    box-shadow: 0 0 10px var(--accent-glow);
}

.onboarding-header h2 {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}

.onboarding-header p {
    color: var(--text-secondary);
    font-size: 1rem;
}

.onboarding-steps {
    margin-bottom: var(--space-xl);
}

.step {
    display: none;
    animation: fadeIn 0.4s ease;
}

.step.active {
    display: block;
}

.step-content h3 {
    font-family: var(--font-display);
    font-size: 1.35rem;
    text-align: center;
    margin-bottom: var(--space-xs);
    color: var(--text-primary);
}

.step-desc {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: var(--space-xl);
}

.option-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: var(--space-md);
}

.option-card {
    padding: var(--space-lg);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    color: var(--text-secondary);
    font-family: var(--font-body);
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--space-sm);
}

.option-card:hover {
    background: rgba(139, 21, 56, 0.1);
    border-color: var(--accent-primary);
    transform: translateY(-2px);
}

.option-card.selected {
    background: linear-gradient(135deg, rgba(139, 21, 56, 0.2) 0%, rgba(168, 36, 72, 0.2) 100%);
    border-color: var(--accent-primary);
    color: var(--text-primary);
    box-shadow: var(--shadow-glow);
}

.option-icon {
    font-size: 1.75rem;
    margin-bottom: var(--space-xs);
}

.option-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
}

.option-subtitle {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.onboarding-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--space-xl);
}

.skip-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-family: var(--font-body);
    font-size: 0.9rem;
    cursor: pointer;
    padding: var(--space-sm);
    transition: color var(--transition-fast);
}

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

.nav-buttons {
    display: flex;
    gap: var(--space-sm);
}

.nav-btn {
    padding: var(--space-md) var(--space-xl);
    border: none;
    border-radius: 10px;
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
}

.nav-btn.primary {
    background: linear-gradient(135deg, var(--wine-800) 0%, var(--wine-700) 100%);
    color: var(--text-primary);
    box-shadow: var(--shadow-md);
}

.nav-btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

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

.nav-btn.secondary:hover {
    background: rgba(139, 21, 56, 0.1);
    color: var(--text-primary);
}

/* Main App */
.app {
    display: flex;
    height: 100vh;
    overflow: hidden;
    position: relative;
}

/* Sidebar */
.sidebar {
    width: 300px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-subtle);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    transition: transform var(--transition-base);
    z-index: 10;
}

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

.brand-small {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.logo-small {
    width: 32px;
    height: 32px;
}

.brand-text {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.new-chat-btn {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-md);
    background: linear-gradient(135deg, var(--wine-800) 0%, var(--wine-700) 100%);
    border: none;
    border-radius: 8px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.new-chat-btn:hover {
    box-shadow: var(--shadow-glow);
}

/* Section Navigation */
.section-nav {
    padding: var(--space-sm);
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.section-btn {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: transparent;
    border: none;
    border-radius: 10px;
    color: var(--text-secondary);
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: left;
}

.section-icon {
    font-size: 1.1rem;
    width: 24px;
    text-align: center;
}

.section-btn:hover {
    background: rgba(139, 21, 56, 0.1);
    color: var(--text-primary);
}

.section-btn.active {
    background: linear-gradient(135deg, rgba(139, 21, 56, 0.2) 0%, rgba(168, 36, 72, 0.15) 100%);
    color: var(--text-primary);
    border: 1px solid var(--border-medium);
}

/* Chat History */
.chat-history-container {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-md);
    border-top: 1px solid var(--border-subtle);
}

.history-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-md);
}

.history-header h4 {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.search-history-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: var(--space-xs);
    border-radius: 6px;
    transition: all var(--transition-fast);
}

.search-history-btn:hover {
    background: rgba(139, 21, 56, 0.1);
    color: var(--text-primary);
}

.search-box {
    margin-bottom: var(--space-md);
}

.search-box input {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.85rem;
}

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

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

.empty-history {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
    padding: var(--space-xl) 0;
}

.history-item {
    padding: var(--space-sm) var(--space-md);
    border-radius: 10px;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    border: 1px solid transparent;
}

.history-item:hover {
    background: rgba(139, 21, 56, 0.1);
    border-color: var(--border-subtle);
}

.history-item.active {
    background: linear-gradient(135deg, rgba(139, 21, 56, 0.2) 0%, rgba(168, 36, 72, 0.15) 100%);
    border-color: var(--accent-primary);
}

.history-item-title {
    font-size: 0.85rem;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex: 1;
}

.history-item-time {
    font-size: 0.7rem;
    color: var(--text-muted);
    flex-shrink: 0;
}

/* Sidebar Footer */
.sidebar-footer {
    padding: var(--space-md);
    border-top: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

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

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--wine-800) 0%, var(--wine-700) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-primary);
}

.user-details {
    display: flex;
    flex-direction: column;
}

.user-name {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
}

.user-status {
    font-size: 0.7rem;
    color: var(--wine-400);
}

.footer-actions {
    display: flex;
    gap: var(--space-xs);
}

.icon-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: 8px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.icon-btn:hover {
    background: rgba(139, 21, 56, 0.1);
    color: var(--text-primary);
}

/* Main Content */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--bg-primary);
    min-width: 0;
    position: relative;
    z-index: 5;
}

/* Chat Header */
.chat-header {
    height: 64px;
    padding: 0 var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-subtle);
    background: var(--bg-secondary);
    flex-shrink: 0;
}

.mobile-menu-btn {
    display: none;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: var(--space-sm);
}

.current-section {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.current-section .section-icon {
    font-size: 1.25rem;
}

.section-name {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
}

.header-actions {
    display: flex;
    gap: var(--space-sm);
}

/* Chat Container */
.chat-container {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
}

.welcome-message {
    text-align: center;
    max-width: 600px;
    margin: auto;
    padding: var(--space-2xl);
    animation: fadeIn 0.5s ease;
}

.welcome-logo {
    font-size: 4rem;
    margin-bottom: var(--space-lg);
    filter: drop-shadow(0 0 30px var(--accent-glow));
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.welcome-message h2 {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
}

.welcome-message p {
    color: var(--text-secondary);
    font-size: 1rem;
    margin-bottom: var(--space-xl);
    line-height: 1.7;
}

.suggestion-chips {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-sm);
}

.chip {
    padding: var(--space-sm) var(--space-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-subtle);
    border-radius: 20px;
    color: var(--text-secondary);
    font-family: var(--font-body);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.chip:hover {
    background: rgba(139, 21, 56, 0.1);
    border-color: var(--accent-primary);
    color: var(--text-primary);
}

/* Messages */
.messages {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    max-width: 800px;
    width: 100%;
    margin: 0 auto;
    padding-bottom: var(--space-lg);
}

.message {
    display: flex;
    gap: var(--space-md);
    animation: messageSlide 0.3s ease;
}

@keyframes messageSlide {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.message.user {
    flex-direction: row-reverse;
}

.message-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    font-weight: 600;
}

.message.user .message-avatar {
    background: linear-gradient(135deg, var(--wine-800) 0%, var(--wine-700) 100%);
    color: var(--text-primary);
}

.message.assistant .message-avatar {
    background: linear-gradient(135deg, var(--wine-700) 0%, var(--wine-600) 100%);
    color: var(--text-primary);
}

.message-content-wrapper {
    max-width: 80%;
    display: flex;
    flex-direction: column;
}

.message.user .message-content-wrapper {
    align-items: flex-end;
}

.message-content {
    padding: var(--space-md) var(--space-lg);
    border-radius: 18px;
    font-size: 0.95rem;
    line-height: 1.7;
    position: relative;
}

.message.user .message-content {
    background: linear-gradient(135deg, var(--wine-800) 0%, var(--wine-700) 100%);
    color: var(--text-primary);
    border-bottom-right-radius: 4px;
}

.message.assistant .message-content {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-subtle);
    border-bottom-left-radius: 4px;
}

.message-content p {
    margin-bottom: var(--space-sm);
}

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

.message-content strong {
    color: var(--wine-300);
    font-weight: 600;
}

.message-content ul {
    margin: var(--space-sm) 0;
    padding-left: var(--space-lg);
}

.message-content li {
    margin-bottom: var(--space-xs);
}

.message-time {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: var(--space-xs);
}

/* Input Area */
.input-area {
    padding: var(--space-md) var(--space-lg);
    border-top: 1px solid var(--border-subtle);
    background: var(--bg-secondary);
    flex-shrink: 0;
}

.input-container {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    align-items: flex-end;
    gap: var(--space-sm);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-subtle);
    border-radius: 20px;
    padding: var(--space-sm);
    transition: all var(--transition-fast);
}

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

.attach-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: 12px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.attach-btn:hover {
    background: rgba(139, 21, 56, 0.1);
    color: var(--text-primary);
}

.input-wrapper {
    flex: 1;
    min-height: 44px;
    max-height: 200px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.attachment-preview {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm);
    background: rgba(139, 21, 56, 0.1);
    border-radius: 8px;
    margin-bottom: var(--space-sm);
}

.attachment-preview.hidden {
    display: none;
}

.attachment-preview img {
    width: 40px;
    height: 40px;
    object-fit: cover;
    border-radius: 6px;
}

.attachment-name {
    font-size: 0.85rem;
    color: var(--text-secondary);
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.remove-attachment {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: var(--space-xs);
    font-size: 1rem;
    transition: color var(--transition-fast);
}

.remove-attachment:hover {
    color: var(--wine-400);
}

.input-wrapper textarea {
    width: 100%;
    min-height: 44px;
    max-height: 200px;
    padding: 10px 0;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    resize: none;
    outline: none;
    line-height: 1.5;
}

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

.send-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--wine-800) 0%, var(--wine-700) 100%);
    border: none;
    border-radius: 12px;
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.send-btn:hover:not(:disabled) {
    box-shadow: var(--shadow-glow);
    transform: scale(1.05);
}

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

.input-disclaimer {
    text-align: center;
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: var(--space-sm);
}

/* Modals */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(8px);
    padding: var(--space-lg);
}

.modal-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: 20px;
    width: 100%;
    max-width: 420px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

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

.modal-header h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.close-modal {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    transition: all var(--transition-fast);
}

.close-modal:hover {
    background: rgba(139, 21, 56, 0.1);
    color: var(--text-primary);
}

.modal-body {
    padding: var(--space-xl);
}

/* Format Modal */
.format-options {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.format-option {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: left;
}

.format-option:hover {
    background: rgba(139, 21, 56, 0.1);
    border-color: var(--accent-primary);
}

.format-option.selected {
    background: linear-gradient(135deg, rgba(139, 21, 56, 0.2) 0%, rgba(168, 36, 72, 0.15) 100%);
    border-color: var(--accent-primary);
}

.format-icon {
    font-size: 1.5rem;
    width: 40px;
    text-align: center;
}

.format-name {
    font-weight: 600;
    color: var(--text-primary);
    display: block;
}

.format-desc {
    font-size: 0.8rem;
    color: var(--text-muted);
    display: block;
}

/* Settings */
.setting-item {
    margin-bottom: var(--space-lg);
}

.setting-item:last-child {
    margin-bottom: 0;
}

.setting-item label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
}

.setting-item select {
    width: 100%;
    padding: var(--space-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-subtle);
    border-radius: 10px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.9rem;
    cursor: pointer;
    outline: none;
}

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

/* Typing Indicator */
.typing-indicator {
    display: flex;
    gap: 4px;
    padding: var(--space-md) var(--space-lg);
}

.typing-indicator span {
    width: 8px;
    height: 8px;
    background: var(--wine-600);
    border-radius: 50%;
    animation: typing 1.4s ease-in-out infinite;
}

.typing-indicator span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-indicator span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing {
    0%, 60%, 100% { transform: translateY(0); }
    30% { transform: translateY(-10px); }
}

/* Responsive Design */
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        bottom: 0;
        transform: translateX(-100%);
        width: 280px;
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .auth-container {
        padding: var(--space-lg);
        margin: var(--space-md);
    }
    
    .option-grid {
        grid-template-columns: 1fr;
    }
    
    .welcome-message {
        padding: var(--space-lg);
    }
    
    .welcome-message h2 {
        font-size: 1.5rem;
    }
    
    .message-content-wrapper {
        max-width: 90%;
    }
    
    .input-area {
        padding: var(--space-sm);
    }
    
    .chat-container {
        padding: var(--space-md);
    }
    
    .section-name {
        font-size: 1rem;
    }
}

/* Touch Device Optimizations */
@media (hover: none) {
    .chip:hover,
    .option-card:hover,
    .section-btn:hover {
        transform: none;
    }
    
    .send-btn:hover:not(:disabled) {
        transform: none;
    }
}

/* Dark mode preference (already dark) */
@media (prefers-color-scheme: light) {
    /* Keep dark theme regardless */
}

/* Animation for new messages */
@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Loading state */
.loading {
    position: relative;
    overflow: hidden;
}

.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(139, 21, 56, 0.1), transparent);
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    100% {
        left: 100%;
    }
}