/* Yoodeks AI - Modern Luxury Design System */

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

:root {
    /* Primary Purple Theme */
    --primary-color: #564fa8;
    --primary-light: #6b5fc7;
    --primary-dark: #433e85;
    --primary-gradient: linear-gradient(135deg, #564fa8 0%, #6b5fc7 100%);
    
    /* Rich Whites & Neutrals */
    --white-pure: #ffffff;
    --white-soft: #fafafa;
    --white-warm: #f8f9fa;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Accent Colors */
    --accent-gold: #f59e0b;
    --accent-emerald: #10b981;
    --success-color: #059669;
    --warning-color: #d97706;
    --danger-color: #dc2626;
    
    /* Chat Specific Colors */
    --chat-user-bg: linear-gradient(135deg, #564fa8 0%, #6b5fc7 100%);
    --chat-user-text: #ffffff;
    --chat-ai-bg: var(--white-pure);
    --chat-ai-text: var(--gray-800);
    --chat-container-bg: var(--white-pure);
    --chat-input-bg: var(--white-pure);
    --chat-border: var(--gray-200);
    
    /* Dark Mode Colors */
    --dark-bg-primary: #0f0f23;
    --dark-bg-secondary: #1a1a2e;
    --dark-bg-tertiary: #16213e;
    --dark-text-primary: #ffffff;
    --dark-text-secondary: #e2e8f0;
    --dark-border: #2d3748;
    --dark-chat-user-bg: linear-gradient(135deg, #564fa8 0%, #7c3aed 100%);
    --dark-chat-ai-bg: var(--dark-bg-secondary);
    
    /* Shadows & Effects */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-purple: 0 8px 32px rgba(86, 79, 168, 0.15);
    --shadow-purple-lg: 0 12px 40px rgba(86, 79, 168, 0.25);
    
    /* Glass Effect */
    --glass-bg: rgba(255, 255, 255, 0.9);
    --glass-border: rgba(255, 255, 255, 0.2);
    --glass-bg-dark: rgba(15, 15, 35, 0.9);
    --glass-border-dark: rgba(255, 255, 255, 0.1);
    
    /* Transitions */
    --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
}

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

body {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    font-weight: 400;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    color: var(--gray-800);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: var(--transition-normal);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body.dark-mode {
    background: linear-gradient(135deg, var(--dark-bg-primary) 0%, var(--dark-bg-secondary) 100%);
    color: var(--dark-text-primary);
}

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

::-webkit-scrollbar-track {
    background: var(--gray-100);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: var(--radius-full);
    transition: var(--transition-fast);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

body.dark-mode ::-webkit-scrollbar-track {
    background: var(--dark-bg-secondary);
}

body.dark-mode ::-webkit-scrollbar-thumb {
    background: var(--dark-border);
}

/* Chat Root Container */
.chat-root {
    display: flex;
    flex-direction: column;
    height: 100vh;
    max-height: 100vh;
    position: relative;
}

/* Glass Header */
.chat-topbar {
    background: var(--glass-bg);
    backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--glass-border);
    color: var(--gray-800);
    padding: var(--space-lg) var(--space-xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 100;
    transition: var(--transition-normal);
}

body.dark-mode .chat-topbar {
    background: var(--glass-bg-dark);
    border-bottom: 1px solid var(--glass-border-dark);
    color: var(--dark-text-primary);
}

.chat-title {
    font-size: 1.5rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.chat-title i {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.4rem;
}

/* Control Buttons */
.chat-controls {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.chat-dark-toggle {
    background: none;
    border: none;
    color: var(--gray-600);
    font-size: 1.25rem;
    cursor: pointer;
    padding: var(--space-sm);
    border-radius: var(--radius-lg);
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.chat-dark-toggle:hover {
    background: var(--gray-100);
    color: var(--primary-color);
    transform: scale(1.05);
}

body.dark-mode .chat-dark-toggle {
    color: var(--dark-text-secondary);
}

body.dark-mode .chat-dark-toggle:hover {
    background: var(--dark-border);
    color: var(--primary-light);
}

.admin-btn {
    background: var(--primary-gradient);
    color: var(--white-pure);
    border: none;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    transition: var(--transition-fast);
    box-shadow: var(--shadow-md);
}

.admin-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: var(--white-pure);
    text-decoration: none;
}

/* Main Chat Area */
.chat-area {
    flex: 1 1 0;
    overflow-y: auto;
    padding: var(--space-xl) var(--space-md);
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    background: transparent;
    scroll-behavior: smooth;
}

/* Message Rows */
.chat-message-row {
    display: flex;
    align-items: flex-end;
    gap: var(--space-md);
    margin-bottom: var(--space-sm);
    opacity: 0;
    animation: messageSlideIn 0.4s ease-out forwards;
}

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

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

/* Avatars */
.chat-avatar {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--white-pure);
    background: var(--gray-400);
    flex-shrink: 0;
    box-shadow: var(--shadow-md);
    transition: var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.chat-message-row.user .chat-avatar {
    background: var(--primary-gradient);
}

.chat-message-row.ai .chat-avatar {
    background: linear-gradient(135deg, var(--accent-gold) 0%, #f97316 100%);
}

.chat-avatar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 30%, rgba(255,255,255,0.1) 50%, transparent 70%);
    transform: translateX(-100%);
    transition: transform 0.6s;
}

.chat-avatar:hover::before {
    transform: translateX(100%);
}

/* Chat Bubbles */
.chat-bubble {
    padding: var(--space-lg);
    border-radius: var(--radius-xl);
    font-size: 1rem;
    line-height: 1.6;
    max-width: 75%;
    min-width: 0;
    word-break: break-word;
    position: relative;
    transition: var(--transition-fast);
    backdrop-filter: blur(10px);
}

.chat-message-row.user .chat-bubble {
    background: var(--chat-user-bg);
    color: var(--chat-user-text);
    border-bottom-right-radius: var(--radius-sm);
    box-shadow: var(--shadow-purple);
}

.chat-message-row.ai .chat-bubble {
    background: var(--chat-ai-bg);
    color: var(--chat-ai-text);
    border-bottom-left-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--chat-border);
}

body.dark-mode .chat-message-row.user .chat-bubble {
    background: var(--dark-chat-user-bg);
}

body.dark-mode .chat-message-row.ai .chat-bubble {
    background: var(--dark-chat-ai-bg);
    color: var(--dark-text-primary);
    border: 1px solid var(--dark-border);
}

/* Special Message Types */
.chat-bubble.interim {
    background: linear-gradient(135deg, #ede9fe 0%, #f3f4f6 100%);
    color: var(--primary-color);
    border-left: 4px solid var(--primary-color);
    font-style: italic;
    animation: pulseGlow 2s ease-in-out infinite;
}

.chat-bubble.completion {
    background: linear-gradient(135deg, #dcfce7 0%, #f0fdf4 100%);
    color: var(--success-color);
    border-left: 4px solid var(--success-color);
    font-weight: 500;
}

body.dark-mode .chat-bubble.interim {
    background: linear-gradient(135deg, var(--dark-bg-tertiary) 0%, var(--dark-bg-secondary) 100%);
    color: var(--primary-light);
    border-left-color: var(--primary-light);
}

body.dark-mode .chat-bubble.completion {
    background: linear-gradient(135deg, #064e3b 0%, #065f46 100%);
    color: var(--accent-emerald);
    border-left-color: var(--accent-emerald);
}

@keyframes pulseGlow {
    0%, 100% { 
        opacity: 0.8;
        transform: scale(1);
    }
    50% { 
        opacity: 1;
        transform: scale(1.01);
    }
}

/* Typing Indicator */
.chat-typing-indicator {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    margin-left: 60px;
    margin-bottom: var(--space-md);
    opacity: 0;
    animation: fadeIn 0.3s ease-out forwards;
}

@keyframes fadeIn {
    to { opacity: 1; }
}

.chat-typing-dot {
    width: 10px;
    height: 10px;
    background: var(--primary-color);
    border-radius: var(--radius-full);
    opacity: 0.6;
    animation: typingBounce 1.4s infinite both;
}

.chat-typing-dot:nth-child(2) { animation-delay: 0.2s; }
.chat-typing-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes typingBounce {
    0%, 80%, 100% { 
        opacity: 0.6;
        transform: scale(1);
    }
    40% { 
        opacity: 1;
        transform: scale(1.2);
    }
}

/* Status Indicator */
.chat-status-indicator {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-left: 60px;
    margin-bottom: var(--space-md);
    font-size: 0.875rem;
    color: var(--gray-600);
}

.status-icon {
    width: 20px;
    height: 20px;
    border-radius: var(--radius-full);
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white-pure);
    font-size: 0.75rem;
    animation: statusPulse 2s ease-in-out infinite;
}

@keyframes statusPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* Input Area */
.chat-input-bar {
    background: var(--white-pure);
    border-top: 1px solid var(--gray-200);
    padding: var(--space-lg);
    display: flex;
    align-items: flex-end;
    gap: var(--space-md);
    position: sticky;
    bottom: 0;
    z-index: 10;
    backdrop-filter: blur(20px);
}

body.dark-mode .chat-input-bar {
    background: var(--dark-bg-secondary);
    border-top: 1px solid var(--dark-border);
}

.chat-input-bar textarea {
    flex: 1 1 0;
    border-radius: var(--radius-xl);
    border: 2px solid var(--gray-200);
    padding: var(--space-md) var(--space-lg);
    font-size: 1rem;
    font-family: inherit;
    resize: none;
    min-height: 56px;
    max-height: 120px;
    background: var(--white-soft);
    color: var(--gray-800);
    transition: var(--transition-fast);
    line-height: 1.5;
}

.chat-input-bar textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(86, 79, 168, 0.1);
    background: var(--white-pure);
}

body.dark-mode .chat-input-bar textarea {
    background: var(--dark-bg-tertiary);
    color: var(--dark-text-primary);
    border-color: var(--dark-border);
}

body.dark-mode .chat-input-bar textarea:focus {
    border-color: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(107, 95, 199, 0.1);
}

/* Send Button */
.chat-send-btn {
    border-radius: var(--radius-full);
    width: 56px;
    height: 56px;
    background: var(--primary-gradient);
    color: var(--white-pure);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    cursor: pointer;
    transition: var(--transition-fast);
    box-shadow: var(--shadow-purple);
    position: relative;
    overflow: hidden;
}

.chat-send-btn:hover:not(:disabled) {
    transform: translateY(-2px) scale(1.05);
    box-shadow: var(--shadow-purple-lg);
}

.chat-send-btn:active {
    transform: translateY(0) scale(0.98);
}

.chat-send-btn:disabled {
    background: var(--gray-300);
    cursor: not-allowed;
    transform: none;
    box-shadow: var(--shadow-sm);
}

.chat-send-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.chat-send-btn:hover::before {
    left: 100%;
}

/* Footer */
.chat-footer {
    text-align: center;
    font-size: 0.875rem;
    color: var(--gray-600);
    padding: var(--space-lg);
    background: transparent;
    line-height: 1.6;
}

body.dark-mode .chat-footer {
    color: var(--dark-text-secondary);
}

.legal-disclaimer {
    margin-top: var(--space-sm);
    font-size: 0.75rem;
    opacity: 0.8;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Responsive Design */
@media (max-width: 768px) {
    .chat-topbar {
        padding: var(--space-md);
    }
    
    .chat-title {
        font-size: 1.25rem;
    }
    
    .chat-area {
        padding: var(--space-md) var(--space-sm);
        gap: var(--space-md);
    }
    
    .chat-bubble {
        max-width: 85%;
        padding: var(--space-md);
        font-size: 0.9rem;
    }
    
    .chat-input-bar {
        padding: var(--space-md);
        gap: var(--space-sm);
    }
    
    .chat-send-btn {
        width: 48px;
        height: 48px;
        font-size: 1.1rem;
    }
    
    .chat-avatar {
        width: 36px;
        height: 36px;
        font-size: 1rem;
    }
    
    .chat-typing-indicator,
    .chat-status-indicator {
        margin-left: 48px;
    }
}

@media (max-width: 480px) {
    .chat-bubble {
        max-width: 90%;
    }
    
    .chat-topbar {
        padding: var(--space-sm) var(--space-md);
    }
    
    .chat-area {
        padding: var(--space-sm);
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles for better accessibility */
.chat-dark-toggle:focus,
.admin-btn:focus,
.chat-send-btn:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --chat-border: #000000;
        --gray-300: #000000;
    }
    
    .chat-bubble {
        border: 2px solid;
    }
}