/* ================================
   MAIN.CSS - Complete Thalvyn Architecture
   ================================ */

/* Google Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@400;600;700&family=Inter:wght@300;400;500;600&display=swap');

/* ================================
   CSS VARIABLES
   ================================ */
:root {
    /* Theme Colors - Tide (Thalvyn) */
    --tide-primary: #00d4aa;
    --tide-secondary: #c0c9d4;
    --tide-glow: rgba(0, 212, 170, 0.3);
    
    /* Theme Colors - Forge (Varkhal) */
    --forge-primary: #6b7280;
    --forge-secondary: #d1d5db;
    --forge-accent: #3b82f6;
    --forge-glow: rgba(107, 114, 128, 0.4);
    
    /* Theme Colors - Bridge (Oracle/Nexus/etc) */
    --bridge-primary: #8a2be2;
    --bridge-secondary: #3b82f6;
    --bridge-glow: rgba(138, 43, 226, 0.3);
    
    /* Base Colors */
    --deep-void: #0a1628;
    --charcoal: #1f2937;
    --ash-gray: #374151;
    --pearl: #f8fafc;
    --silver: #c0c9d4;
    --bone-white: #f9fafb;
    
    /* Typography */
    --font-heading: 'Cinzel', serif;
    --font-body: 'Inter', sans-serif;
    --font-mystical: 'Georgia', serif;
    
    /* Spacing Scale */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    
    /* Responsive Breakpoints */
    --mobile: 768px;
    --tablet: 1024px;
    --desktop: 1200px;
    
    /* Animation Timing */
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.3s ease;
    --transition-slow: 0.5s ease;
    --transition-mystical: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    
    /* Effects */
    --blur-light: blur(10px);
    --blur-medium: blur(15px);
    --blur-heavy: blur(20px);
    --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 10px 30px rgba(0, 0, 0, 0.2);
    --shadow-heavy: 0 20px 60px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 30px var(--primary-glow);
    
    /* Default Theme (Tide) */
    --primary-color: var(--tide-primary);
    --secondary-color: var(--tide-secondary);
    --primary-glow: var(--tide-glow);
}

/* ================================
   RESET & BASE STYLES
   ================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background: linear-gradient(135deg, var(--deep-void) 0%, #0f2a44 50%, var(--deep-void) 100%);
    color: var(--pearl);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    cursor: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 20 20"><circle cx="10" cy="10" r="8" fill="none" stroke="%2300d4aa" stroke-width="2"/><circle cx="10" cy="10" r="2" fill="%2300d4aa"/></svg>'), auto;
}

/* ================================
   THEME CLASSES
   ================================ */
.tide-theme {
    --primary-color: var(--tide-primary);
    --secondary-color: var(--tide-secondary);
    --primary-glow: var(--tide-glow);
}

.tide-theme body {
    cursor: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 20 20"><circle cx="10" cy="10" r="8" fill="none" stroke="%2300d4aa" stroke-width="2"/><circle cx="10" cy="10" r="2" fill="%2300d4aa"/></svg>'), auto;
}

.forge-theme {
    --primary-color: var(--forge-primary);
    --secondary-color: var(--forge-secondary);
    --primary-glow: var(--forge-glow);
    --accent-color: var(--forge-accent);
}

.forge-theme body {
    background: linear-gradient(135deg, var(--charcoal) 0%, #2d3748 50%, var(--charcoal) 100%);
    cursor: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 20 20"><circle cx="10" cy="10" r="8" fill="none" stroke="%236b7280" stroke-width="2"/><circle cx="10" cy="10" r="2" fill="%236b7280"/></svg>'), auto;
}

.bridge-theme {
    --primary-color: var(--bridge-primary);
    --secondary-color: var(--bridge-secondary);
    --primary-glow: var(--bridge-glow);
}

.bridge-theme body {
    cursor: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 20 20"><circle cx="10" cy="10" r="8" fill="none" stroke="%238a2be2" stroke-width="2"/><circle cx="10" cy="10" r="2" fill="%238a2be2"/></svg>'), auto;
}

/* ================================
   LAYOUT UTILITIES
   ================================ */
.container {
    max-width: var(--desktop);
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.section {
    padding: var(--space-3xl) 0;
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* Grid Systems */
.grid-auto {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

/* ================================
   TYPOGRAPHY
   ================================ */
.heading-xl {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.2;
}

.heading-lg {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: 600;
    line-height: 1.3;
}

.heading-md {
    font-family: var(--font-heading);
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 600;
    line-height: 1.4;
}

.subtitle {
    font-family: var(--font-heading);
    font-style: italic;
    opacity: 0.9;
    color: var(--secondary-color);
}

.body-lg {
    font-size: 1.2rem;
    line-height: 1.8;
}

.body-md {
    font-size: 1.1rem;
    line-height: 1.7;
}

/* ================================
   SCROLL PROGRESS BAR
   ================================ */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    z-index: 1001;
    transition: width 0.1s ease;
}

/* ================================
   NAVIGATION
   ================================ */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 22, 40, 0.95);
    backdrop-filter: var(--blur-light);
    z-index: 1000;
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--primary-color);
    transition: all var(--transition-smooth);
}

.site-header.scrolled {
    background: rgba(10, 22, 40, 0.98);
    box-shadow: var(--shadow-soft);
}

.nav-container {
    max-width: var(--desktop);
    margin: 0 auto;
    padding: 0 var(--space-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.site-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
    text-shadow: 0 0 10px var(--primary-glow);
    transition: all var(--transition-smooth);
}

.site-logo:hover {
    text-shadow: 0 0 20px var(--primary-glow);
    transform: scale(1.05);
}

.nav-links {
    display: flex;
    gap: var(--space-lg);
    list-style: none;
}

.nav-links a {
    color: var(--silver);
    text-decoration: none;
    font-weight: 500;
    transition: all var(--transition-smooth);
    position: relative;
    padding: var(--space-xs) 0;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary-color);
    text-shadow: 0 0 5px var(--primary-glow);
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 50%;
    background: var(--primary-color);
    transition: all var(--transition-smooth);
    transform: translateX(-50%);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

/* Mobile Navigation */
.mobile-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: var(--space-xs);
    background: none;
    border: none;
    gap: 4px;
}

.mobile-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    transition: all var(--transition-smooth);
    border-radius: 2px;
    box-shadow: 0 0 10px var(--primary-glow);
}

.mobile-toggle.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.mobile-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-toggle.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

.mobile-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-smooth);
    z-index: 998;
}

.mobile-overlay.show {
    opacity: 1;
    visibility: visible;
}

.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 300px;
    height: 100vh;
    background: linear-gradient(135deg, var(--deep-void), #0f2a44);
    backdrop-filter: var(--blur-heavy);
    border-left: 2px solid var(--primary-color);
    padding: 6rem var(--space-lg) var(--space-lg);
    transition: right var(--transition-mystical);
    z-index: 999;
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5);
}

.mobile-menu.open {
    right: 0;
}

.mobile-nav-links {
    list-style: none;
    padding: 0;
}

.mobile-nav-links li {
    margin-bottom: var(--space-lg);
}

.mobile-nav-links a {
    color: var(--silver);
    text-decoration: none;
    font-size: 1.3rem;
    font-weight: 400;
    transition: all var(--transition-smooth);
    display: block;
    padding: var(--space-sm) 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
}

.mobile-nav-links a:hover,
.mobile-nav-links a.active {
    color: var(--primary-color);
    text-shadow: 0 0 10px var(--primary-glow);
    padding-left: var(--space-sm);
}

.mobile-nav-links a::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transform: translateY(-50%);
    transition: width var(--transition-smooth);
}

.mobile-nav-links a:hover::before {
    width: 20px;
}

/* ================================
   COMPONENTS
   ================================ */

/* Cards */
.card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: var(--blur-medium);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: var(--space-xl);
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-medium);
    border-color: var(--primary-color);
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.05), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
}

.card:hover::before {
    transform: translateX(100%);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: var(--space-sm) var(--space-lg);
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all var(--transition-smooth);
    cursor: pointer;
    border: none;
    font-family: var(--font-body);
    position: relative;
    overflow: hidden;
}

.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 ease;
}

.btn:hover::before {
    left: 100%;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-medium);
}

.btn-primary {
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    color: var(--pearl);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    color: var(--pearl);
}

/* Avatars */
.avatar {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    border: 3px solid var(--primary-color);
    box-shadow: var(--shadow-glow);
    object-fit: cover;
    animation: avatarFloat 6s ease-in-out infinite;
}

@keyframes avatarFloat {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-15px); }
}

/* ================================
   HERO SECTIONS
   ================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--space-lg);
    position: relative;
    margin-top: 80px;
}

.hero-content {
    max-width: 800px;
    animation: fadeInUp 1s ease-out;
}

.hero-title {
    margin-bottom: var(--space-sm);
    text-shadow: 0 0 20px var(--primary-glow);
    color: var(--primary-color);
}

.hero-subtitle {
    margin-bottom: var(--space-lg);
    color: var(--secondary-color);
}

.hero-description {
    max-width: 600px;
    margin: 0 auto;
    opacity: 0.9;
}

.avatar-container {
    margin-bottom: var(--space-lg);
    position: relative;
}

/* ================================
   SECTION TITLES
   ================================ */
.section-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 2.5rem);
    text-align: center;
    margin-bottom: var(--space-xl);
    text-shadow: 0 0 15px var(--primary-glow);
    color: var(--primary-color);
}

/* ================================
   PARTICLES & ANIMATIONS
   ================================ */
.particles-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
    overflow: hidden;
}

.particle {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
    will-change: transform, opacity;
}

.particle-float {
    background: radial-gradient(circle, var(--primary-color), transparent);
    animation: particleFloat 8s infinite ease-in-out;
}

@keyframes particleFloat {
    0%, 100% { 
        transform: translateY(0px) rotate(0deg); 
        opacity: 0.3; 
    }
    50% { 
        transform: translateY(-20px) rotate(180deg); 
        opacity: 0.8; 
    }
}

/* Parallax Background */
.parallax-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    transform-style: preserve-3d;
    perspective: 1000px;
}

.parallax-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 120%;
}

.parallax-back {
    transform: translateZ(-300px) scale(1.3);
    background: radial-gradient(circle at 30% 20%, var(--primary-glow) 0%, transparent 50%),
               radial-gradient(circle at 70% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    animation: slowFloat 20s ease-in-out infinite;
}

.parallax-mid {
    transform: translateZ(-150px) scale(1.15);
    background: radial-gradient(circle at 60% 40%, var(--primary-glow) 0%, transparent 40%),
               radial-gradient(circle at 20% 70%, var(--primary-glow) 0%, transparent 30%);
    animation: slowFloat 15s ease-in-out infinite reverse;
}

.parallax-front {
    transform: translateZ(-50px) scale(1.05);
    background: radial-gradient(circle at 80% 10%, var(--primary-glow) 0%, transparent 25%);
    animation: slowFloat 10s ease-in-out infinite;
}

@keyframes slowFloat {
    0%, 100% { transform: translateZ(-300px) scale(1.3) translateY(0px); }
    50% { transform: translateZ(-300px) scale(1.3) translateY(-30px); }
}

/* ================================
   SPECIAL SECTIONS
   ================================ */

/* Highlighted sections */
.highlight-section {
    background: linear-gradient(135deg, var(--primary-glow), rgba(255, 255, 255, 0.05));
    border-top: 2px solid var(--primary-color);
    border-bottom: 2px solid var(--primary-color);
    padding: var(--space-3xl) 0;
    margin: var(--space-2xl) 0;
}

/* Quote boxes */
.quote-box {
    background: rgba(10, 22, 40, 0.9);
    border: 2px solid var(--secondary-color);
    border-radius: 15px;
    padding: var(--space-xl);
    margin: var(--space-xl) 0;
    font-style: italic;
    color: var(--secondary-color);
    position: relative;
}

.quote-box::before {
    content: '"';
    font-size: 4rem;
    color: var(--primary-color);
    position: absolute;
    top: -10px;
    left: 20px;
    font-family: var(--font-heading);
}

.quote-box::after {
    content: '"';
    font-size: 4rem;
    color: var(--primary-color);
    position: absolute;
    bottom: -40px;
    right: 20px;
    font-family: var(--font-heading);
}

/* ================================
   ORACLE & QUIZ SPECIFIC
   ================================ */

/* Oracle Eye */
.oracle-eye {
    width: 200px;
    height: 200px;
    margin: 0 auto 3rem;
    position: relative;
    background: radial-gradient(circle, var(--bridge-glow) 0%, var(--tide-glow) 50%, transparent 70%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: oraclePulse 4s infinite ease-in-out;
}

.oracle-eye::before {
    content: '';
    position: absolute;
    width: 120px;
    height: 120px;
    background: linear-gradient(45deg, var(--tide-primary), var(--bridge-primary));
    border-radius: 50%;
    opacity: 0.8;
    animation: orbRotate 8s linear infinite;
}

.oracle-eye::after {
    content: '👁️';
    position: absolute;
    font-size: 3rem;
    z-index: 2;
    animation: orbBlink 6s infinite;
}

@keyframes oraclePulse {
    0%, 100% { transform: scale(1); box-shadow: 0 0 20px var(--bridge-glow); }
    50% { transform: scale(1.1); box-shadow: 0 0 40px var(--tide-glow); }
}

@keyframes orbRotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes orbBlink {
    0%, 90%, 100% { opacity: 1; }
    95% { opacity: 0.1; }
}

/* Quiz Progress */
.progress-container {
    margin-bottom: 3rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    padding: var(--space-sm);
    backdrop-filter: var(--blur-light);
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--tide-primary), var(--bridge-primary));
    border-radius: 4px;
    transition: width 0.5s ease;
}

/* Affinity Gauges */
.affinity-gauges {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-sm);
    margin-bottom: 2rem;
}

.affinity-gauge {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    padding: var(--space-sm);
    text-align: center;
    backdrop-filter: var(--blur-light);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.gauge-bar {
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    overflow: hidden;
    margin-top: 0.5rem;
}

.gauge-fill {
    height: 100%;
    border-radius: 3px;
    transition: width 0.8s ease;
}

.tide-gauge { --gauge-color: var(--tide-primary); }
.forge-gauge { --gauge-color: var(--forge-primary); }
.bridge-gauge { --gauge-color: var(--bridge-primary); }

.gauge-fill {
    background: var(--gauge-color);
}

/* Answer Options */
.answer-options {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.answer-option {
    background: rgba(255, 255, 255, 0.03);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: var(--space-md);
    cursor: pointer;
    transition: all var(--transition-smooth);
    text-align: left;
    position: relative;
    overflow: hidden;
}

.answer-option::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, var(--option-color, rgba(255,255,255,0.1)), transparent);
    transition: left 0.5s ease;
}

.answer-option:hover::before {
    left: 100%;
}

.answer-option:hover {
    border-color: var(--option-color, rgba(255,255,255,0.3));
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.answer-option.selected {
    border-color: var(--option-color);
    background: rgba(255, 255, 255, 0.08);
    transform: scale(1.02);
}

.option-tide { --option-color: var(--tide-primary); }
.option-forge { --option-color: var(--forge-primary); }
.option-bridge { --option-color: var(--bridge-primary); }

/* ================================
   NEXUS CHAT SPECIFIC
   ================================ */

/* Chat Container */
.chat-container {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 20px;
    backdrop-filter: var(--blur-medium);
    border: 1px solid rgba(255, 255, 255, 0.1);
    overflow: hidden;
    max-width: 900px;
    margin: 0 auto;
}

.chat-messages {
    padding: var(--space-lg);
    overflow-y: auto;
    min-height: 400px;
    max-height: 500px;
}

.message {
    margin-bottom: var(--space-md);
    display: flex;
    align-items: flex-start;
    animation: messageSlideIn 0.5s ease-out;
}

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

.message.user {
    justify-content: flex-end;
}

.message-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    margin: 0 var(--space-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    flex-shrink: 0;
    background-size: cover;
    background-position: center;
    border: 2px solid var(--primary-color);
    box-shadow: 0 0 20px var(--primary-glow);
}

.message-bubble {
    max-width: 70%;
    padding: var(--space-sm) var(--space-md);
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.message.ai .message-bubble {
    background: linear-gradient(135deg, var(--primary-glow), rgba(255, 255, 255, 0.1));
    border: 1px solid var(--primary-color);
}

/* Chat Input */
.chat-input-container {
    padding: var(--space-lg);
    background: rgba(0, 0, 0, 0.2);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.chat-input-form {
    display: flex;
    gap: var(--space-sm);
    align-items: center;
}

.chat-input {
    flex: 1;
    padding: var(--space-sm) var(--space-md);
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid var(--primary-color);
    border-radius: 25px;
    color: var(--pearl);
    font-size: 1rem;
    outline: none;
    transition: all var(--transition-smooth);
    backdrop-filter: var(--blur-light);
}

.chat-input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.chat-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 20px var(--primary-glow);
}

.send-button {
    padding: var(--space-sm) var(--space-lg);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border: none;
    border-radius: 25px;
    color: var(--pearl);
    font-weight: bold;
    cursor: pointer;
    transition: all var(--transition-smooth);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.send-button:hover {
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
    box-shadow: 0 0 25px var(--primary-glow);
    transform: translateY(-2px);
}

/* Personality Selector */
.personality-selector {
    display: flex;
    gap: var(--space-lg);
    justify-content: center;
    margin: var(--space-md) 0;
    flex-wrap: wrap;
}

.personality-option {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    cursor: pointer;
    transition: all var(--transition-smooth);
    backdrop-filter: var(--blur-light);
}

.personality-option:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.personality-option.active {
    border-color: var(--primary-color);
    box-shadow: 0 0 20px var(--primary-glow);
}

.personality-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-size: cover;
    background-position: center;
    border: 2px solid var(--primary-color);
    box-shadow: 0 0 15px var(--primary-glow);
}

/* ================================
   ARTIFACTS SPECIFIC
   ================================ */

/* Filter Tabs */
.filter-tabs {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-tab {
    padding: 0.8rem 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid transparent;
    border-radius: 25px;
    color: var(--pearl);
    cursor: pointer;
    transition: all var(--transition-smooth);
    backdrop-filter: var(--blur-light);
    font-size: 0.95rem;
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.filter-tab.active,
.filter-tab:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--primary-glow);
    border-color: var(--primary-color);
    background: var(--primary-glow);
}

/* Artifact Cards */
.artifact {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: var(--space-lg);
    backdrop-filter: var(--blur-medium);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.5s ease;
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.artifact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.05), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
}

.artifact:hover::before {
    transform: translateX(100%);
}

.artifact:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 40px var(--primary-glow);
    border-color: var(--primary-color);
}

.artifact-image {
    width: 100%;
    height: 200px;
    border-radius: 15px;
    object-fit: cover;
    margin-bottom: var(--space-md);
    transition: all var(--transition-smooth);
}

.artifact:hover .artifact-image {
    transform: scale(1.05);
}

.artifact-name {
    font-size: 1.4rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
    text-align: center;
    color: var(--primary-color);
}

.artifact-type {
    font-size: 0.9rem;
    opacity: 0.7;
    text-align: center;
    margin-bottom: var(--space-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.artifact-description {
    font-size: 0.95rem;
    line-height: 1.7;
    opacity: 0.9;
    text-align: justify;
}

/* Hidden class for filtering */
.hidden {
    display: none;
}

/* ================================
   CONTACT FORM SPECIFIC
   ================================ */

.contact-form {
    background: rgba(10, 22, 40, 0.8);
    padding: 3rem;
    border-radius: 20px;
    border: 2px solid transparent;
    background-image: 
        linear-gradient(rgba(10, 22, 40, 0.8), rgba(10, 22, 40, 0.8)),
        linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    background-origin: border-box;
    background-clip: content-box, border-box;
    backdrop-filter: var(--blur-medium);
    box-shadow: 0 25px 50px var(--primary-glow);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

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

.form-group label {
    display: block;
    margin-bottom: 0.8rem;
    color: var(--silver);
    font-weight: 500;
    font-size: 1rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 1.2rem;
    background: rgba(31, 41, 55, 0.6);
    border: 1px solid var(--primary-color);
    border-radius: 12px;
    color: var(--pearl);
    font-size: 1rem;
    transition: all var(--transition-smooth);
    font-family: var(--font-body);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 15px var(--primary-glow);
    background: rgba(31, 41, 55, 0.8);
}

.form-group textarea {
    resize: vertical;
    min-height: 140px;
}

/* ================================
   ANIMATIONS
   ================================ */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s ease forwards;
}

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

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

/* ================================
   RESPONSIVE DESIGN
   ================================ */
@media (max-width: 768px) {
    /* Navigation */
    .nav-links {
        display: none;
    }
    
    .mobile-toggle {
        display: flex;
    }
    
    .nav-container {
        padding: 0 var(--space-sm);
    }
    
    .mobile-menu {
        width: 280px;
        padding: 5rem var(--space-sm) var(--space-sm);
    }
    
    /* Layout */
    .container {
        padding: 0 var(--space-sm);
    }
    
    .grid-2,
    .grid-3 {
        grid-template-columns: 1fr;
    }
    
    .section {
        padding: var(--space-2xl) 0;
    }
    
    /* Components */
    .avatar {
        width: 150px;
        height: 150px;
    }
    
    .card {
        padding: var(--space-lg);
    }
    
    .hero {
        padding: var(--space-sm);
        margin-top: 60px;
    }
    
    /* Oracle */
    .oracle-eye {
        width: 150px;
        height: 150px;
    }
    
    .oracle-eye::after {
        font-size: 2rem;
    }
    
    /* Quiz */
    .affinity-gauges {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
    
    .answer-options {
        gap: 0.8rem;
    }
    
    .answer-option {
        padding: 1.2rem;
    }
    
    /* Chat */
    .message-bubble {
        max-width: 85%;
    }
    
    .chat-input-form {
        flex-direction: column;
        gap: var(--space-sm);
    }
    
    .chat-input, .send-button {
        width: 100%;
    }
    
    .personality-selector {
        flex-direction: column;
        gap: var(--space-sm);
    }
    
    /* Artifacts */
    .filter-tabs {
        gap: 0.5rem;
        margin-bottom: 2rem;
    }
    
    .filter-tab {
        padding: 0.6rem 1rem;
        font-size: 0.8rem;
    }
    
    .artifact {
        padding: var(--space-md);
    }
    
    .artifact-image {
        height: 180px;
    }
    
    /* Contact */
    .contact-form {
        padding: var(--space-lg);
        margin: 0 var(--space-sm);
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }
    
    /* Disable parallax on mobile for performance */
    .parallax-container {
        display: none;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .card {
        padding: var(--space-md);
    }
    
    .btn {
        display: block;
        text-align: center;
        margin: var(--space-xs) 0;
    }
    
    .contact-form {
        padding: var(--space-md);
    }
}

/* ================================
   PERFORMANCE OPTIMIZATIONS
   ================================ */
.particles-container,
.parallax-container {
    will-change: transform;
    backface-visibility: hidden;
    perspective: 1000px;
}

/* Custom scrollbar */
.chat-messages::-webkit-scrollbar {
    width: 8px;
}

.chat-messages::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
}

.chat-messages::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 10px;
}

.chat-messages::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .particle,
    .parallax-layer,
    .avatar,
    .oracle-eye {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }
    
    .card:hover,
    .btn:hover,
    .artifact:hover {
        transform: none;
    }
    
    * {
        transition-duration: 0.01ms !important;
    }
}

/* Language Switcher CSS */

.language-dropdown {
    position: relative;
    z-index: 100;
}

.lang-current {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1rem;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 25px;
    color: var(--silver);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-smooth);
    backdrop-filter: var(--blur-light);
    font-family: var(--font-body);
    min-width: 90px;
}

.lang-current:hover,
.lang-current[aria-expanded="true"] {
    background: rgba(255, 255, 255, 0.12);
    border-color: var(--primary-color);
    box-shadow: 0 4px 15px var(--primary-glow);
    transform: translateY(-1px);
}

.lang-current .flag {
    font-size: 1.1rem;
    line-height: 1;
}

.lang-current .lang-code {
    font-weight: 600;
    letter-spacing: 0.5px;
}

.dropdown-arrow {
    font-size: 0.7rem;
    transition: transform var(--transition-smooth);
    margin-left: auto;
}

.lang-current[aria-expanded="true"] .dropdown-arrow {
    transform: rotate(180deg);
}

.lang-menu {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    min-width: 200px;
    background: rgba(10, 22, 40, 0.95);
    backdrop-filter: var(--blur-medium);
    border: 1px solid var(--primary-color);
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), 0 0 20px var(--primary-glow);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-mystical);
    z-index: 1000;
    overflow: hidden;
}

.lang-menu.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-option {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.8rem 1rem;
    color: var(--silver);
    text-decoration: none;
    transition: all var(--transition-smooth);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    cursor: pointer;
    font-size: 0.9rem;
}

.lang-option:last-child {
    border-bottom: none;
}

.lang-option:hover,
.lang-option.active {
    background: var(--primary-glow);
    color: var(--primary-color);
    padding-left: 1.2rem;
}

.lang-option.active {
    background: linear-gradient(90deg, var(--primary-glow), rgba(255, 255, 255, 0.08));
    font-weight: 600;
}

.lang-option .flag {
    font-size: 1.2rem;
    flex-shrink: 0;
}

.lang-option .lang-info {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
}

.lang-option .lang-name {
    font-weight: 500;
    line-height: 1.2;
}

.lang-option .lang-native {
    font-size: 0.75rem;
    opacity: 0.7;
    line-height: 1.1;
}

/* Mobile Language Section */
.mobile-lang-section {
    padding: var(--space-lg) 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: var(--space-lg);
}

.mobile-lang-section h4 {
    color: var(--primary-color);
    font-family: var(--font-heading);
    font-size: 1.1rem;
    margin-bottom: var(--space-md);
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.mobile-lang-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
}

.mobile-lang-option {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    color: var(--silver);
    text-decoration: none;
    transition: all var(--transition-smooth);
    font-size: 0.85rem;
    cursor: pointer;
}

.mobile-lang-option:hover,
.mobile-lang-option.active {
    background: var(--primary-glow);
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-2px);
}

.mobile-lang-option.active {
    font-weight: 600;
    box-shadow: 0 0 15px var(--primary-glow);
}

.mobile-lang-option .flag {
    font-size: 1rem;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .language-dropdown {
        order: -1;
        margin-right: auto;
    }
    
    .lang-current {
        padding: 0.5rem 0.8rem;
        font-size: 0.85rem;
        min-width: 80px;
    }
    
    .lang-menu {
        min-width: 180px;
        right: -10px;
    }
    
    .nav-container {
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .lang-current {
        padding: 0.4rem 0.6rem;
        font-size: 0.8rem;
        min-width: 70px;
        gap: 0.3rem;
    }
    
    .lang-current .flag {
        font-size: 1rem;
    }
    
    .dropdown-arrow {
        font-size: 0.6rem;
    }
    
    .lang-menu {
        min-width: 160px;
    }
    
    .mobile-lang-grid {
        grid-template-columns: 1fr;
    }
}

/* Mobile responsive language switcher */
@media (max-width: 768px) {
    .language-switcher {
        order: -1;
        margin-right: auto;
    }
    
    .lang-btn {
        padding: 0.3rem 0.6rem;
        font-size: 0.8rem;
    }
    
    .nav-container {
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .lang-btn {
        padding: 0.25rem 0.5rem;
        font-size: 0.75rem;
        gap: 0.2rem;
    }
    
    .lang-btn .flag {
        font-size: 0.9rem;
    }
}