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

:root {
    /* Color Palette */
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary-color: #06b6d4;
    --accent-color: #f59e0b;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    
    /* Neutral Colors */
    --bg-primary: #0f0f23;
    --bg-secondary: #1a1a2e;
    --bg-tertiary: #16213e;
    --bg-glass: rgba(255, 255, 255, 0.05);
    --bg-glass-hover: rgba(255, 255, 255, 0.1);
    
    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    
    /* Border Colors */
    --border-primary: rgba(255, 255, 255, 0.1);
    --border-secondary: rgba(255, 255, 255, 0.05);
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 0.15s ease-out;
    --transition-normal: 0.3s ease-out;
    --transition-slow: 0.5s ease-out;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    overflow-x: hidden;
    min-height: 100vh;
    position: relative;
}

/* Aurora Background */
.aurora-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.aurora-layer {
    position: absolute;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(99, 102, 241, 0.1), transparent);
    animation: aurora-flow 20s ease-in-out infinite;
}

.aurora-1 {
    animation-delay: 0s;
    background: linear-gradient(45deg, transparent, rgba(99, 102, 241, 0.08), transparent);
}

.aurora-2 {
    animation-delay: -7s;
    background: linear-gradient(-45deg, transparent, rgba(6, 182, 212, 0.06), transparent);
}

.aurora-3 {
    animation-delay: -14s;
    background: linear-gradient(90deg, transparent, rgba(245, 158, 11, 0.04), transparent);
}

@keyframes aurora-flow {
    0%, 100% { transform: translateX(-50%) translateY(-50%) rotate(0deg); }
    33% { transform: translateX(-40%) translateY(-60%) rotate(120deg); }
    66% { transform: translateX(-60%) translateY(-40%) rotate(240deg); }
}

/* Main Container */
.main-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    position: relative;
    z-index: 1;
}

/* Header */
.app-header {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-primary);
    padding: var(--spacing-md) var(--spacing-xl);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo-image {
    height: 70px;
    width: auto;
    object-fit: contain;
}

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

.icon-btn {
    background: var(--bg-glass);
    border: 1px solid var(--border-primary);
    color: var(--text-secondary);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
}

.icon-btn:hover {
    background: var(--bg-glass-hover);
    color: var(--text-primary);
    transform: translateY(-1px);
}

/* Status Bar */
.status-bar {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-secondary);
    padding: var(--spacing-sm) var(--spacing-xl);
}

.status-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
    background: var(--text-muted);
    transition: all var(--transition-fast);
}

.status-dot.connected {
    background: var(--success-color);
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.5);
}

.status-dot.connecting {
    background: var(--warning-color);
    animation: pulse 2s infinite;
}

.status-dot.error {
    background: var(--error-color);
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.connection-info {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Chat Container */
.chat-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    padding: 0 var(--spacing-xl);
    padding-bottom: 280px; /* Space for fixed assistant button and text input */
}

.messages-container {
    flex: 1;
    padding: var(--spacing-xl) 0;
    overflow-y: auto;
    scroll-behavior: smooth;
}

.welcome-message {
    text-align: center;
    padding: var(--spacing-2xl);
    margin-bottom: var(--spacing-xl);
}

.welcome-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.welcome-message h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.welcome-message p {
    color: var(--text-secondary);
    max-width: 500px;
    margin: 0 auto var(--spacing-xl);
    line-height: 1.6;
}

/* Welcome Examples */
.welcome-examples {
    margin: var(--spacing-xl) 0;
}

.welcome-examples h4 {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.example-phrases {
    display: grid;
    gap: var(--spacing-sm);
    max-width: 600px;
    margin: 0 auto;
}

.phrase-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-glass);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.phrase-item:hover {
    background: var(--bg-glass-hover);
    color: var(--text-primary);
    transform: translateY(-1px);
}

.phrase-item i {
    color: var(--primary-color);
    font-size: 0.75rem;
}

/* Welcome Actions */
.welcome-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-top: var(--spacing-xl);
}

.welcome-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.welcome-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

.welcome-btn.secondary {
    background: var(--bg-glass);
    color: var(--text-primary);
    border: 1px solid var(--border-primary);
}

.welcome-btn.secondary:hover {
    background: var(--bg-glass-hover);
}

.messages {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.message {
    background: var(--bg-glass);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    max-width: 80%;
    animation: messageSlideIn 0.3s ease-out;
}

.message.user {
    align-self: flex-end;
    background: var(--primary-color);
    color: white;
}

.message.assistant {
    align-self: flex-start;
    background: var(--bg-glass);
}

.message.system {
    align-self: center;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    font-size: 0.875rem;
    max-width: 60%;
    text-align: center;
}

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

/* Assistant Button */
.assistant-container {
    position: fixed;
    bottom: 120px; /* Space for text input below */
    left: 0;
    right: 0;
    display: flex;
    justify-content: center;
    padding: var(--spacing-lg);
    background: linear-gradient(to top, var(--bg-primary), rgba(15, 15, 35, 0.95), transparent);
    z-index: 50;
}

.assistant-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.assistant-button {
    position: relative;
    width: 120px;
    height: 120px;
    border: none;
    background: transparent;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.liquid-sphere {
    position: relative;
    width: 100%;
    height: 100%;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    box-shadow: 
        0 0 30px rgba(99, 102, 241, 0.3),
        inset 0 0 30px rgba(255, 255, 255, 0.1);
    transition: all var(--transition-normal);
    overflow: hidden;
}

.sphere-core {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80%;
    height: 80%;
    border-radius: var(--radius-full);
    background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.3), transparent);
}

.sphere-motif {
    position: absolute;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.1);
    animation: float 6s ease-in-out infinite;
}

.motif-1 {
    width: 20px;
    height: 20px;
    top: 20%;
    left: 30%;
    animation-delay: 0s;
}

.motif-2 {
    width: 15px;
    height: 15px;
    top: 60%;
    right: 25%;
    animation-delay: 2s;
}

.motif-3 {
    width: 12px;
    height: 12px;
    bottom: 30%;
    left: 20%;
    animation-delay: 4s;
}

.pulse-ring {
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    border: 2px solid var(--primary-color);
    border-radius: var(--radius-full);
    opacity: 0;
    animation: pulse-ring 2s ease-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-10px) rotate(180deg); }
}

@keyframes pulse-ring {
    0% {
        transform: scale(0.8);
        opacity: 1;
    }
    100% {
        transform: scale(1.4);
        opacity: 0;
    }
}

.button-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 2rem;
    color: white;
    transition: all var(--transition-fast);
}

.assistant-button:hover .liquid-sphere {
    transform: scale(1.05);
    box-shadow: 
        0 0 40px rgba(99, 102, 241, 0.4),
        inset 0 0 30px rgba(255, 255, 255, 0.15);
}

.assistant-button.active .liquid-sphere {
    animation: active-pulse 2s ease-in-out infinite;
    background: linear-gradient(135deg, var(--success-color), var(--secondary-color));
}

.assistant-button.active .pulse-ring {
    animation: pulse-ring 1.5s ease-out infinite;
}

.assistant-button.sphere-is-vocally-active .liquid-sphere {
    animation: voice-activity 0.5s ease-in-out infinite alternate;
}

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

@keyframes voice-activity {
    0% { transform: scale(1); }
    100% { transform: scale(1.08); }
}

.assistant-label {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
}

.assistant-hint {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.75rem;
    margin-top: var(--spacing-xs);
}

/* Text Input */
.text-input-container {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--bg-primary);
    border-top: 1px solid var(--border-primary);
    z-index: 50;
}

.text-input-wrapper {
    display: flex;
    gap: var(--spacing-sm);
    background: var(--bg-glass);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-sm);
    max-width: 1200px;
    margin: 0 auto;
}

#textInput {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-primary);
    padding: var(--spacing-sm);
    font-size: 1rem;
    outline: none;
}

#textInput::placeholder {
    color: var(--text-muted);
}

.send-btn {
    background: var(--primary-color);
    border: none;
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.send-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

/* Input Examples */
.input-examples {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
    flex-wrap: wrap;
    justify-content: center;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.example-text-btn {
    background: var(--bg-glass);
    border: 1px solid var(--border-primary);
    color: var(--text-secondary);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.example-text-btn:hover {
    background: var(--bg-glass-hover);
    color: var(--text-primary);
    transform: translateY(-1px);
}

/* Settings Panel */
.settings-panel {
    position: fixed;
    top: 0;
    right: -400px;
    width: 400px;
    height: 100vh;
    background: var(--bg-secondary);
    border-left: 1px solid var(--border-primary);
    backdrop-filter: blur(20px);
    z-index: 1000;
    transition: right var(--transition-normal);
    overflow-y: auto;
}

.settings-panel.open {
    right: 0;
}

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

.settings-header h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 600;
}

.close-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

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

.settings-content {
    padding: var(--spacing-lg);
}

.setting-group {
    margin-bottom: var(--spacing-xl);
}

.setting-group label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-wrapper input {
    flex: 1;
    background: var(--bg-glass);
    border: 1px solid var(--border-primary);
    color: var(--text-primary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.input-wrapper input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.toggle-password {
    position: absolute;
    right: var(--spacing-sm);
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

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

select {
    width: 100%;
    background: var(--bg-glass);
    border: 1px solid var(--border-primary);
    color: var(--text-primary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.help-text {
    display: block;
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-top: var(--spacing-xs);
    line-height: 1.4;
}

.audio-controls {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.volume-control {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.volume-control span:first-child {
    min-width: 60px;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.volume-control input[type="range"] {
    flex: 1;
    height: 6px;
    background: var(--bg-glass);
    border-radius: var(--radius-full);
    outline: none;
    -webkit-appearance: none;
}

.volume-control input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    background: var(--primary-color);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.volume-control input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

.volume-control span:last-child {
    min-width: 40px;
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-align: right;
}

/* Examples Section */
.examples-section {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-glass);
    border: 1px solid var(--border-secondary);
    border-radius: var(--radius-md);
}

.examples-section h4 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.examples-section h4 i {
    color: var(--accent-color);
}

/* Example Items (API Keys) */
.example-items {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.example-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-secondary);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.example-item:hover {
    background: var(--bg-glass-hover);
    transform: translateY(-1px);
}

.example-item code {
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 0.75rem;
    color: var(--text-secondary);
    background: var(--bg-glass);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
}

.copy-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.copy-btn:hover {
    color: var(--primary-color);
    background: var(--bg-glass);
}

/* Example Conversations */
.example-conversation {
    margin-bottom: var(--spacing-lg);
}

.example-conversation h4 {
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.conversation-flow {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.example-message {
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    line-height: 1.4;
}

.example-message.user {
    background: var(--primary-color);
    color: white;
    align-self: flex-end;
    max-width: 80%;
}

.example-message.assistant {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    align-self: flex-start;
    max-width: 80%;
}

/* Quick Start Guide */
.quick-start {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.step {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.step:hover {
    background: var(--bg-glass-hover);
}

.step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: var(--primary-color);
    color: white;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
}

.step-text {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Overlay */
.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Responsive Design */
@media (max-width: 768px) {
    .app-header {
        padding: var(--spacing-md);
    }
    
    .chat-container {
        padding: 0 var(--spacing-md);
        padding-bottom: 260px; /* Adjusted for mobile */
    }
    
    .text-input-container {
        padding: var(--spacing-md);
    }
    
    .assistant-container {
        bottom: 100px; /* Adjusted for mobile */
        padding: var(--spacing-md);
    }
    
    .settings-panel {
        width: 100%;
        right: -100%;
    }
    
    .assistant-button {
        width: 100px;
        height: 100px;
    }
    
    .button-icon {
        font-size: 1.75rem;
    }
    
    .message {
        max-width: 90%;
    }

    .welcome-actions {
        flex-direction: column;
        align-items: center;
    }

    .input-examples {
        justify-content: flex-start;
    }

    .example-phrases {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .header-content {
        padding: 0;
    }
    
    .logo-image {
        height: 32px;
    }
    
    .chat-container {
        padding-bottom: 240px; /* Further adjusted for small mobile */
    }
    
    .text-input-container {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .assistant-container {
        bottom: 90px; /* Further adjusted for small mobile */
        padding: var(--spacing-sm);
    }
    
    .assistant-button {
        width: 80px;
        height: 80px;
    }
    
    .button-icon {
        font-size: 1.5rem;
    }
    
    .welcome-message {
        padding: var(--spacing-lg);
    }
    
    .welcome-message h3 {
        font-size: 1.25rem;
    }

    .example-items {
        gap: var(--spacing-xs);
    }

    .example-item {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xs);
    }
}