/* HMN.AI - Enhanced Futuristic CSS Styles */

/* --- Core Variables --- */
:root {
    /* Core Colors - Futuristic Theme */
    --bg-dark: #0a0a0f;
    --bg-light: #13131a;
    --bg-surface: #1a1a24;
    --text-primary: rgba(255, 255, 255, 0.95);
    --text-secondary: rgba(255, 255, 255, 0.7);
    --accent-primary: #00d4ff;
    --accent-secondary: #ff006e;
    --accent-gradient: linear-gradient(135deg, #00d4ff 0%, #ff006e 100%);
    --neon-glow: 0 0 20px rgba(0, 212, 255, 0.5);
    --neon-glow-intense: 0 0 40px rgba(0, 212, 255, 0.8);

    /* Glass Effects */
    --glass-bg: rgba(26, 26, 36, 0.6);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    --glass-blur: 20px;
    
    /* Borders & Radius */
    --card-border-radius: 20px;
    --button-border-radius: 14px;
    --input-border-radius: 12px;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;

    /* Animation */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-standard: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Mode Colors */
.light-mode {
    --bg-dark: #f0f4f8;
    --bg-light: #ffffff;
    --bg-surface: #e8ecf1;
    --text-primary: rgba(0, 0, 0, 0.9);
    --text-secondary: rgba(0, 0, 0, 0.7);
    --accent-primary: #0080ff;
    --accent-secondary: #ff0080;
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(0, 0, 0, 0.06);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    --neon-glow: 0 0 20px rgba(0, 128, 255, 0.3);
    --neon-glow-intense: 0 0 40px rgba(0, 128, 255, 0.5);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
    -webkit-tap-highlight-color: transparent;
}

/* Animated Background */
body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(0, 212, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 0, 110, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(120, 119, 198, 0.1) 0%, transparent 50%);
    z-index: -1;
    animation: backgroundShift 20s ease infinite;
}

@keyframes backgroundShift {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(-20px, -20px) rotate(120deg); }
    66% { transform: translate(20px, -10px) rotate(240deg); }
}

/* Particle Effect */
.particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: var(--accent-primary);
    border-radius: 50%;
    opacity: 0.3;
    animation: particleFloat 10s linear infinite;
}

@keyframes particleFloat {
    0% {
        transform: translateY(100vh) translateX(0);
        opacity: 0;
    }
    10% {
        opacity: 0.3;
    }
    90% {
        opacity: 0.3;
    }
    100% {
        transform: translateY(-10vh) translateX(50px);
        opacity: 0;
    }
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    font-family: 'Space Grotesk', sans-serif;
}

h1 { font-size: 3rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.25rem; }

/* Button Base */
button {
    font-family: inherit;
    border: none;
    cursor: pointer;
    transition: var(--transition-standard);
    position: relative;
    overflow: hidden;
}

button::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

button:active::before {
    width: 300px;
    height: 300px;
}

/* Layout */
.container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Header */
.site-header {
    padding: var(--spacing-md) 0;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border-bottom: 1px solid var(--glass-border);
    background: rgba(10, 10, 15, 0.8);
    transition: all var(--transition-standard);
}

.light-mode .site-header {
    background: rgba(240, 244, 248, 0.8);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
    text-decoration: none;
    font-size: 1.5rem;
    letter-spacing: -0.02em;
    position: relative;
}

.logo::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--accent-gradient);
    transform: scaleX(0);
    transition: transform var(--transition-standard);
}

.logo:hover::after {
    transform: scaleX(1);
}

/* Main Content */
.main-content {
    padding-top: 100px;
    padding-bottom: var(--spacing-xl);
    min-height: 100vh;
    position: relative;
    z-index: 1;
}

/* Page Title */
.page-title {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    position: relative;
}

.page-title h1 {
    font-size: 3rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-xs);
    animation: titleGlow 3s ease-in-out infinite;
}

@keyframes titleGlow {
    0%, 100% { filter: brightness(1); }
    50% { filter: brightness(1.2); }
}

.page-title p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    opacity: 0;
    animation: fadeInUp 0.6s ease forwards;
    animation-delay: 0.2s;
}

/* Chat Interface */
.chat-interface {
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: var(--spacing-lg);
    height: 750px;
    max-height: calc(100vh - 180px);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    background: var(--glass-bg);
    border-radius: var(--card-border-radius);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    overflow: hidden;
    position: relative;
    animation: interfaceEntry 0.8s ease forwards;
}

@keyframes interfaceEntry {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Control Panel */
.control-panel {
    background: var(--bg-surface);
    border-right: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
    position: relative;
}

.panel-header {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: rgba(0, 212, 255, 0.05);
}

/* Status Indicator */
.status-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #00ff88;
    display: inline-block;
    margin-right: var(--spacing-xs);
    position: relative;
    box-shadow: 0 0 10px rgba(0, 255, 136, 0.5);
}

.status-indicator::after {
    content: '';
    position: absolute;
    inset: -4px;
    border-radius: 50%;
    background: rgba(0, 255, 136, 0.3);
    animation: statusPulse 2s infinite;
}

@keyframes statusPulse {
    0%, 100% { 
        transform: scale(1);
        opacity: 0.3;
    }
    50% { 
        transform: scale(1.5);
        opacity: 0;
    }
}

/* Message Input Area */
.message-input-area {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--glass-border);
    background: rgba(0, 212, 255, 0.02);
}

.chat-input-form {
    display: flex;
    gap: var(--spacing-xs);
    position: relative;
}

.chat-input {
    flex: 1;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--glass-border);
    padding: var(--spacing-md);
    border-radius: var(--input-border-radius);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    outline: none;
    transition: var(--transition-standard);
}

.light-mode .chat-input {
    background: rgba(255, 255, 255, 0.8);
}

.chat-input:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1), var(--neon-glow);
}

/* Send Button */
.send-button {
    background: var(--accent-gradient);
    color: white;
    padding: 0 var(--spacing-lg);
    border-radius: var(--button-border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    box-shadow: var(--neon-glow);
    transition: all var(--transition-standard);
}

.send-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--neon-glow-intense);
}

.send-button:active {
    transform: translateY(0);
}

.send-button svg {
    width: 20px;
    height: 20px;
    fill: currentColor;
}

/* Control Buttons */
.control-buttons {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--glass-border);
}

.control-buttons h3 {
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-sm);
}

.button-group {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.button-group:last-child {
    margin-bottom: 0;
}

.control-button {
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-primary);
    padding: var(--spacing-md);
    border-radius: var(--button-border-radius);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    transition: all var(--transition-standard);
    min-height: 90px;
    text-align: center;
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
}

.light-mode .control-button {
    background: rgba(0, 0, 0, 0.03);
}

.control-button::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--accent-gradient);
    opacity: 0;
    transition: opacity var(--transition-standard);
}

.control-button:hover {
    transform: translateY(-3px);
    border-color: var(--accent-primary);
    box-shadow: 0 5px 15px rgba(0, 212, 255, 0.2);
}

.control-button:hover::after {
    opacity: 0.1;
}

.button-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
}

.control-button span {
    z-index: 1;
    font-size: 0.9rem;
}

.button-icon svg {
    width: 24px;
    height: 24px;
    fill: var(--accent-primary);
    filter: drop-shadow(0 0 3px rgba(0, 212, 255, 0.5));
}

/* Recording Animation */
.control-button.recording {
    background: var(--accent-gradient);
    animation: recordingPulse 1.5s infinite;
    color: white;
}

.control-button.recording .button-icon svg {
    fill: white;
}

@keyframes recordingPulse {
    0% { 
        box-shadow: 0 0 0 0 rgba(255, 0, 110, 0.5);
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    70% { 
        box-shadow: 0 0 0 15px rgba(255, 0, 110, 0);
    }
    100% { 
        box-shadow: 0 0 0 0 rgba(255, 0, 110, 0);
        transform: scale(1);
    }
}

/* Suggestions Area */
.suggestions-area {
    padding: var(--spacing-md);
    flex: 1;
    overflow-y: auto;
    min-height: 150px;
}

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

.suggestions h3 {
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.suggestions-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.suggestion-chip {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 100px;
    transition: all var(--transition-standard);
    font-size: 0.9rem;
    border: 1px solid var(--glass-border);
    cursor: pointer;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.light-mode .suggestion-chip {
    background: rgba(0, 0, 0, 0.05);
}

.suggestion-chip:hover {
    background: var(--accent-gradient);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 212, 255, 0.3);
    border-color: transparent;
}

/* Panel Content */
.panel-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    height: calc(100% - 60px);
}

/* Chat Panel */
.chat-panel {
    height: 100%;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
    background: rgba(0, 0, 0, 0.2);
}

.light-mode .chat-panel {
    background: rgba(255, 255, 255, 0.5);
}

.chat-messages {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    overflow-y: auto;
    overflow-x: hidden;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
}

/* Custom Scrollbar */
.chat-messages::-webkit-scrollbar,
.suggestions-area::-webkit-scrollbar,
.panel-content::-webkit-scrollbar {
    width: 8px;
}

.chat-messages::-webkit-scrollbar-track,
.suggestions-area::-webkit-scrollbar-track,
.panel-content::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
}

.chat-messages::-webkit-scrollbar-thumb,
.suggestions-area::-webkit-scrollbar-thumb,
.panel-content::-webkit-scrollbar-thumb {
    background: var(--accent-primary);
    border-radius: 4px;
    opacity: 0.5;
}

.chat-messages::-webkit-scrollbar-thumb:hover,
.suggestions-area::-webkit-scrollbar-thumb:hover,
.panel-content::-webkit-scrollbar-thumb:hover {
    opacity: 1;
}

/* Messages */
.message {
    max-width: 80%;
    display: flex;
    flex-direction: column;
    position: relative;
    animation: messageSlide 0.4s cubic-bezier(0.4, 0, 0.2, 1) forwards;
    opacity: 0;
    transform: translateY(20px);
}

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

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

.message-content {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: 20px;
    position: relative;
    line-height: 1.5;
    word-wrap: break-word;
    overflow-wrap: break-word;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.message.user .message-content {
    background: var(--accent-gradient);
    color: white;
    border-top-right-radius: 4px;
    box-shadow: 0 5px 15px rgba(0, 212, 255, 0.2);
}

.message.bot .message-content {
    background: rgba(255, 255, 255, 0.05);
    border-top-left-radius: 4px;
    border: 1px solid var(--glass-border);
}

.light-mode .message.bot .message-content {
    background: rgba(0, 0, 0, 0.05);
}

.message-timestamp {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 4px;
    opacity: 0.7;
}

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

/* Formatted Response */
.formatted-response {
    word-wrap: break-word;
}

.formatted-response p {
    margin-bottom: var(--spacing-sm);
}

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

.formatted-response h1,
.formatted-response h2,
.formatted-response h3,
.formatted-response h4,
.formatted-response h5,
.formatted-response h6 {
    color: var(--accent-primary);
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-xs);
}

.formatted-response blockquote {
    border-left: 3px solid var(--accent-primary);
    padding-left: var(--spacing-md);
    margin: var(--spacing-sm) 0;
    font-style: italic;
    color: var(--text-secondary);
}

.formatted-response ul,
.formatted-response ol {
    margin: var(--spacing-sm) 0;
    padding-left: var(--spacing-lg);
}

.formatted-response li {
    margin-bottom: var(--spacing-xs);
}

/* Typing Indicator */
.typing-indicator {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    margin-top: var(--spacing-xs);
    border: 1px solid var(--glass-border);
    animation: fadeIn 0.3s ease forwards;
}

.typing-dot {
    width: 8px;
    height: 8px;
    background: var(--accent-primary);
    border-radius: 50%;
    animation: typingBounce 1.4s infinite;
    box-shadow: 0 0 5px rgba(0, 212, 255, 0.5);
}

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

@keyframes typingBounce {
    0%, 60%, 100% { 
        transform: translateY(0);
        opacity: 0.5;
    }
    30% { 
        transform: translateY(-10px);
        opacity: 1;
    }
}

/* Code Blocks */
.code-block-wrapper {
    position: relative;
    margin: var(--spacing-sm) 0;
}

.code-block {
    background: rgba(0, 0, 0, 0.5);
    padding: var(--spacing-md);
    border-radius: 12px;
    margin: var(--spacing-sm) 0;
    overflow-x: auto;
    border: 1px solid var(--glass-border);
    font-family: 'Fira Code', 'Consolas', monospace;
    font-size: 0.9em;
    line-height: 1.6;
}

.light-mode .code-block {
    background: rgba(0, 0, 0, 0.08);
}

.inline-code {
    background: rgba(0, 0, 0, 0.3);
    padding: 0.2em 0.4em;
    border-radius: 4px;
    font-family: 'Fira Code', 'Consolas', monospace;
    font-size: 0.9em;
}

.light-mode .inline-code {
    background: rgba(0, 0, 0, 0.1);
}

.copy-code-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    background: var(--accent-gradient);
    color: white;
    border: none;
    border-radius: 8px;
    padding: 4px 12px;
    font-size: 0.75rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    opacity: 0;
    transform: translateY(-5px);
}

.code-block-wrapper:hover .copy-code-btn {
    opacity: 1;
    transform: translateY(0);
}

.copy-code-btn:hover {
    transform: scale(1.05);
}

.copy-code-btn.copied {
    background: #00ff88;
}

/* Code Actions */
.code-actions {
    display: flex;
    gap: 8px;
    margin-top: 8px;
}

.code-action-button {
    background: rgba(0, 212, 255, 0.1);
    color: var(--accent-primary);
    padding: 6px 12px;
    border-radius: 8px;
    font-size: 0.75rem;
    display: flex;
    align-items: center;
    gap: 4px;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 1px solid var(--accent-primary);
}

.code-action-button:hover {
    background: var(--accent-primary);
    color: white;
    transform: translateY(-2px);
}

.code-action-button.active {
    background: #00ff88;
    border-color: #00ff88;
    color: white;
}

.code-action-button svg {
    width: 12px;
    height: 12px;
    fill: currentColor;
}

/* Gemini Suggestion */
.gemini-suggestion {
    position: absolute;
    bottom: 5px;
    right: 5px;
    background: var(--accent-primary);
    color: white;
    border-radius: var(--button-border-radius);
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.8rem;
    cursor: pointer;
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 5px;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.gemini-suggestion.visible {
    opacity: 1;
    transform: translateY(0);
}

.gemini-suggestion:hover {
    background: var(--accent-secondary);
}

/* Navigation Overlay */
.nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-slow), visibility 0s linear 0.5s;
    overflow-y: auto;
}

.light-mode .nav-overlay {
    background: rgba(240, 244, 248, 0.95);
}

.nav-overlay.active {
    opacity: 1;
    visibility: visible;
    transition: opacity var(--transition-slow), visibility 0s linear 0s;
}

.nav-content {
    min-height: 100vh;
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 120px 0 60px;
    opacity: 0;
    transform: translateY(30px);
    transition: all var(--transition-slow);
    transition-delay: 0.1s;
}

.nav-overlay.active .nav-content {
    opacity: 1;
    transform: translateY(0);
}

.nav-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.nav-title {
    color: var(--accent-primary);
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.nav-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Navigation Grid */
.nav-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.nav-item {
    padding: var(--spacing-lg);
    border-radius: var(--card-border-radius);
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    transition: all var(--transition-standard);
    cursor: pointer;
    text-decoration: none;
    color: var(--text-primary);
    position: relative;
    overflow: hidden;
}

.nav-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--accent-gradient);
    opacity: 0;
    transition: opacity var(--transition-standard);
    z-index: 0;
}

.nav-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.2);
    border-color: var(--accent-primary);
}

.nav-item:hover::before {
    opacity: 0.1;
}

.nav-item-content {
    position: relative;
    z-index: 1;
}

.nav-item-title {
    color: var(--accent-primary);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.nav-item-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Navigation Chat Tools */
.nav-chat-tools {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.action-button {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--button-border-radius);
    transition: var(--transition-standard);
    cursor: pointer;
    border: none;
}

.light-mode .action-button {
    background: rgba(0, 0, 0, 0.05);
}

.action-button:hover {
    background: var(--accent-primary);
    color: white;
    transform: translateY(-2px);
}

/* Navigation Trigger */
.nav-trigger {
    position: fixed;
    right: var(--spacing-md);
    bottom: var(--spacing-md);
    background: var(--accent-gradient);
    color: white;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: 100px;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    z-index: 1001;
    font-weight: 600;
    box-shadow: var(--neon-glow);
    transition: all var(--transition-standard);
}

.nav-trigger:hover {
    transform: translateY(-3px);
    box-shadow: var(--neon-glow-intense);
}

.nav-trigger .icon {
    width: 20px;
    height: 20px;
    position: relative;
    transition: transform var(--transition-standard);
}

.nav-trigger .icon::before,
.nav-trigger .icon::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    background: currentColor;
    left: 0;
    transition: all var(--transition-standard);
}

.nav-trigger .icon::before {
    top: 40%;
    transform-origin: center;
}

.nav-trigger .icon::after {
    bottom: 40%;
    transform-origin: center;
}

.nav-trigger.active .icon::before {
    transform: translateY(3px) rotate(45deg);
    top: 50%;
}

.nav-trigger.active .icon::after {
    transform: translateY(-3px) rotate(-45deg);
    bottom: 50%;
}

/* Code Viewer Container */
#codeViewerContainer {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-dark);
    z-index: 2000;
    padding: 100px var(--spacing-md) var(--spacing-xl);
    overflow: hidden;
    display: none;
    opacity: 0;
    transition: opacity var(--transition-standard);
}

#codeViewerContainer.active {
    display: block;
    opacity: 1;
}

.code-viewer-panel {
    height: 100%;
    width: 100%;
    display: flex;
    flex-direction: column;
    background: var(--bg-surface);
    border-radius: var(--card-border-radius);
    overflow: hidden;
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
}

/* Editor View Toggles */
.editor-view-toggles {
    position: absolute;
    top: 15px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 100;
}

.view-toggle-button {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    border: 1px solid var(--glass-border);
    transition: all 0.2s ease;
    cursor: pointer;
}

.view-toggle-button.active {
    background: var(--accent-primary);
    color: white;
}

/* Code Editor Toolbar */
.code-editor-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm);
    background: rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid var(--glass-border);
}

.toolbar-tabs {
    display: flex;
    gap: var(--spacing-xs);
}

.tab-button {
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--button-border-radius);
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid transparent;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.tab-button.active {
    background: var(--accent-gradient);
    color: white;
    box-shadow: 0 2px 8px rgba(0, 212, 255, 0.3);
}

.tab-button:hover:not(.active) {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border-color: var(--glass-border);
}

.toolbar-actions {
    display: flex;
    gap: var(--spacing-xs);
}

.toolbar-button {
    width: 34px;
    height: 34px;
    border-radius: var(--button-border-radius);
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.toolbar-button svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

.toolbar-button:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--accent-primary);
}

.toolbar-button.active {
    background: var(--accent-primary);
    color: white;
}

/* Code Editor Container */
.code-editor-container {
    display: flex;
    flex: 1;
    overflow: hidden;
    position: relative;
}

.code-editor-pane {
    flex: 1;
    position: relative;
    overflow: hidden;
    background: var(--bg-dark);
    display: flex;
    flex-direction: column;
}

/* Code Editor Content */
.code-editor-content {
    position: absolute;
    inset: 0;
    overflow: auto;
    display: none;
    opacity: 0;
    transition: opacity var(--transition-standard);
}

.code-editor-content.active {
    display: block;
    opacity: 1;
}

.code-textarea-wrapper {
    position: relative;
    width: 100%;
    height: 100%;
}

.code-textarea {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    padding: var(--spacing-md);
    padding-left: 60px;
    background: transparent;
    color: var(--text-primary);
    font-family: 'Fira Code', 'Consolas', monospace;
    font-size: 14px;
    line-height: 1.6;
    border: none;
    resize: none;
    outline: none;
    tab-size: 2;
    caret-color: var(--accent-primary);
    z-index: 2;
    white-space: pre;
    overflow-wrap: normal;
    overflow: auto;
}

/* Line Numbers */
.line-numbers {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    padding: var(--spacing-md) 10px;
    color: var(--text-secondary);
    font-family: 'Fira Code', 'Consolas', monospace;
    font-size: 14px;
    line-height: 1.6;
    text-align: right;
    background: rgba(0, 0, 0, 0.2);
    user-select: none;
    overflow: hidden;
    z-index: 1;
    width: 50px;
}

.line-number {
    text-align: right;
    padding-right: 8px;
    color: var(--text-secondary);
    user-select: none;
    opacity: 0.5;
}

/* Syntax Highlighting */
.code-highlighting-html,
.code-highlighting-css,
.code-highlighting-js {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    padding: var(--spacing-md);
    padding-left: 60px;
    margin: 0;
    background: transparent;
    font-family: 'Fira Code', 'Consolas', monospace;
    font-size: 14px;
    line-height: 1.6;
    pointer-events: none;
    overflow: hidden;
    white-space: pre;
    z-index: 1;
}

/* Preview Pane */
.preview-pane {
    width: 50%;
    background: white;
    display: flex;
    flex-direction: column;
    border-left: 1px solid var(--glass-border);
    transition: all var(--transition-standard);
}

.preview-header {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-surface);
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.preview-controls {
    display: flex;
    gap: 8px;
}

.preview-control-button {
    width: 28px;
    height: 28px;
    border-radius: 4px;
    background: transparent;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    cursor: pointer;
    border: none;
}

.preview-control-button:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--accent-primary);
}

.preview-control-button svg {
    width: 16px;
    height: 16px;
    fill: currentColor;
}

.preview-frame {
    flex: 1;
    border: none;
    background: white;
    width: 100%;
    height: 100%;
}

/* Gemini Response Panel */
.gemini-response-panel {
    position: absolute;
    top: 70px;
    right: 15px;
    width: 35%;
    max-width: 500px;
    min-width: 350px;
    background: var(--bg-surface);
    border-radius: var(--card-border-radius);
    border: 1px solid var(--glass-border);
    max-height: calc(100% - 200px);
    overflow-y: auto;
    box-shadow: var(--glass-shadow);
    z-index: 2000;
    display: none;
    padding: var(--spacing-md);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.gemini-response-panel.active {
    display: block;
    animation: slideIn 0.3s ease forwards;
}

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

.response-panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--glass-border);
}

.response-panel-title {
    font-size: 1rem;
    font-weight: 600;
}

.response-panel-close {
    background: transparent;
    color: var(--text-secondary);
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border: none;
    font-size: 1.5rem;
}

.response-panel-content {
    font-size: 0.9rem;
    line-height: 1.6;
}

/* Code Close Button */
.code-close-button {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    transition: all var(--transition-standard);
    box-shadow: 0 5px 15px rgba(0, 212, 255, 0.3);
}

.code-close-button:hover {
    transform: rotate(90deg) scale(1.1);
}

.code-close-button::before,
.code-close-button::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 2px;
    background-color: white;
}

.code-close-button::before {
    transform: rotate(45deg);
}

.code-close-button::after {
    transform: rotate(-45deg);
}

/* Code Chat Interface */
.code-chat-interface {
    position: absolute;
    bottom: 20px;
    left: 0;
    right: 0;
    display: flex;
    padding: 0 20px;
    z-index: 2001;
}

.code-chat-input-form {
    display: flex;
    gap: 10px;
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    background: var(--glass-bg);
    padding: 12px 15px;
    border-radius: 100px;
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.code-chat-input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    outline: none;
    padding: 0 10px;
}

.code-chat-send-button {
    background: var(--accent-gradient);
    color: white;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    cursor: pointer;
    border: none;
}

.code-chat-send-button:hover {
    transform: scale(1.1);
}

.code-chat-send-button svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

/* Loading Spinner */
.loading-spinner {
    display: inline-block;
    width: 50px;
    height: 50px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    border-top-color: var(--accent-primary);
    animation: spin 1s linear infinite;
    position: absolute;
    top: 50%;
    left: 50%;
    margin-top: -25px;
    margin-left: -25px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Animations */
@keyframes fadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* Media Queries */
@media (max-width: 1200px) {
    .chat-interface {
        height: 700px;
    }
    
    .page-title h1 {
        font-size: 2.5rem;
    }
}

@media (max-width: 992px) {
    .chat-interface {
        grid-template-columns: 320px 1fr;
    }
    
    .control-button {
        min-height: 80px;
        font-size: 0.9rem;
    }
}

@media (max-width: 768px) {
    .chat-interface {
        grid-template-columns: 1fr;
        grid-template-rows: 1fr auto;
        height: calc(100vh - 150px);
    }

    .control-panel {
        order: 2;
        border-right: none;
        border-top: 1px solid var(--glass-border);
        height: auto;
        max-height: 300px;
    }

    .chat-panel {
        order: 1;
    }

    .panel-content {
        max-height: 250px;
        overflow-y: auto;
    }

    .button-group {
        gap: var(--spacing-xs);
    }

    .control-button {
        min-height: 70px;
        padding: var(--spacing-xs);
        font-size: 0.85rem;
    }

    .suggestions-area {
        max-height: 180px;
    }

    .message {
        max-width: 90%;
    }

    .page-title h1 {
        font-size: 2rem;
    }

    /* Mobile Code Editor */
    #codeViewerContainer {
        padding: 80px var(--spacing-sm) var(--spacing-md);
    }
    
    .code-editor-container {
        flex-direction: column !important;
    }
    
    .code-editor-pane,
    .preview-pane {
        width: 100% !important;
        height: 50% !important;
    }
    
    .preview-pane {
        border-left: none;
        border-top: 1px solid var(--glass-border);
    }
    
    .code-editor-pane.full-height {
        height: 100% !important;
    }
    
    .gemini-response-panel {
        position: fixed;
        top: auto;
        bottom: 100px;
        left: 10px;
        right: 10px;
        width: auto;
        max-width: none;
        max-height: 40vh;
    }
    
    .editor-view-toggles {
        top: 70px;
        flex-direction: column;
        left: 15px;
        transform: none;
    }
}

@media (max-width: 576px) {
    .site-header {
        padding: var(--spacing-sm) 0;
    }

    .main-content {
        padding-top: 80px;
    }

    .page-title h1 {
        font-size: 1.75rem;
    }

    .chat-interface {
        height: calc(100vh - 140px);
        border-radius: 16px;
    }

    .chat-messages {
        padding: var(--spacing-md);
    }

    .message-content {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.95rem;
    }

    .control-button {
        min-height: 60px;
        font-size: 0.8rem;
    }
    
    .button-icon svg {
        width: 20px;
        height: 20px;
    }

    .nav-trigger {
        padding: var(--spacing-xs) var(--spacing-md);
        font-size: 0.9rem;
    }

    .suggestion-chip {
        font-size: 0.85rem;
        padding: 6px 12px;
    }
    
    .nav-grid {
        grid-template-columns: 1fr;
    }
    
    .nav-item {
        padding: var(--spacing-md);
    }
}

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

/* Print Styles */
@media print {
    .control-panel,
    .nav-trigger,
    .site-header,
    .code-actions,
    .copy-code-btn {
        display: none !important;
    }
    
    .chat-interface {
        height: auto;
        border: none;
        box-shadow: none;
    }
    
    .chat-messages {
        padding: 0;
    }
    
    .message {
        max-width: 100%;
        page-break-inside: avoid;
    }
}