/* =============================================================================
   AI SECOND OPINION - 2026 CUTTING-EDGE DESIGN
   Immersive | Interactive | Award-Worthy
   ============================================================================= */

/* Custom Properties */
:root {
    /* Colors - Vibrant Health Palette */
    --cyan: #06b6d4;
    --cyan-light: #22d3ee;
    --cyan-dark: #0891b2;
    --violet: #8b5cf6;
    --violet-light: #a78bfa;
    --pink: #ec4899;
    --green: #10b981;
    --amber: #f59e0b;
    
    /* Neutrals */
    --white: #ffffff;
    --gray-50: #fafafa;
    --gray-100: #f4f4f5;
    --gray-200: #e4e4e7;
    --gray-300: #d4d4d8;
    --gray-400: #a1a1aa;
    --gray-500: #71717a;
    --gray-600: #52525b;
    --gray-700: #3f3f46;
    --gray-800: #27272a;
    --gray-900: #18181b;
    --gray-950: #0a0a0f;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--cyan), var(--violet));
    --gradient-secondary: linear-gradient(135deg, var(--violet), var(--pink));
    --gradient-glow: radial-gradient(circle, rgba(6, 182, 212, 0.15), transparent 70%);
    
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
    --font-display: 'Space Grotesk', var(--font-sans);
    
    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    --space-3xl: 64px;
    --space-4xl: 96px;
    
    /* Radii */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.2);
    --shadow-glow-cyan: 0 0 60px rgba(6, 182, 212, 0.3);
    --shadow-glow-violet: 0 0 60px rgba(139, 92, 246, 0.3);
    
    /* Transitions */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --duration-fast: 150ms;
    --duration-normal: 300ms;
    --duration-slow: 500ms;
}

/* Reset */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    scroll-padding-top: 80px;
    overflow-x: hidden;
}

body {
    font-family: var(--font-sans);
    font-size: 17px;
    background: var(--gray-950);
    color: var(--gray-100);
    line-height: 1.7;
    overflow-x: hidden;
}

::selection {
    background: var(--cyan);
    color: var(--gray-950);
}

/* =============================================================================
   IMMERSIVE BACKGROUND
   ============================================================================= */

.bg-wrapper {
    position: fixed;
    inset: 0;
    z-index: -1;
    overflow: hidden;
}

#particles-canvas {
    position: absolute;
    inset: 0;
    opacity: 0.6;
}

.gradient-orbs {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    animation: float 20s ease-in-out infinite;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.15), transparent 70%);
    top: -200px;
    left: -200px;
    animation-delay: 0s;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.12), transparent 70%);
    top: 40%;
    right: -150px;
    animation-delay: -7s;
}

.orb-3 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(236, 72, 153, 0.08), transparent 70%);
    bottom: -100px;
    left: 30%;
    animation-delay: -14s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.05); }
    66% { transform: translate(-20px, 20px) scale(0.95); }
}

.noise-overlay {
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    opacity: 0.03;
    pointer-events: none;
}

/* Cursor Glow */
.cursor-glow {
    position: fixed;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.08), transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
    transform: translate(-50%, -50%);
    transition: opacity 0.3s;
    display: none;
}

@media (hover: hover) {
    .cursor-glow {
        display: block;
    }
}

/* =============================================================================
   NAVIGATION
   ============================================================================= */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: var(--space-md) var(--space-lg);
    transition: all var(--duration-normal) var(--ease-out);
}

.nav.scrolled {
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    text-decoration: none;
    color: inherit;
}

.logo-icon {
    width: 40px;
    height: 40px;
}

.logo-icon svg {
    width: 100%;
    height: 100%;
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    gap: var(--space-xl);
}

.nav-link {
    color: var(--gray-400);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color var(--duration-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--duration-normal) var(--ease-out);
}

.nav-link:hover {
    color: var(--white);
}

.nav-link:hover::after {
    width: 100%;
}

/* =============================================================================
   HERO SECTION
   ============================================================================= */

.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: var(--space-4xl) var(--space-lg) var(--space-2xl);
    position: relative;
}

.hero-content {
    max-width: 900px;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-xs) var(--space-md) var(--space-xs) var(--space-sm);
    background: rgba(6, 182, 212, 0.1);
    border: 1px solid rgba(6, 182, 212, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--cyan-light);
    margin-bottom: var(--space-xl);
}

.badge-pulse {
    width: 8px;
    height: 8px;
    background: var(--cyan);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(6, 182, 212, 0.4); }
    50% { opacity: 0.8; box-shadow: 0 0 0 8px rgba(6, 182, 212, 0); }
}

.badge-year {
    padding: 2px 8px;
    background: rgba(6, 182, 212, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 700;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 7vw, 5rem);
    font-weight: 700;
    line-height: 1.05;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-lg);
}

.title-line {
    display: block;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--gray-400);
    max-width: 650px;
    margin: 0 auto var(--space-2xl);
    line-height: 1.7;
}

.hero-subtitle strong {
    color: var(--white);
}

/* Search Module */
.search-module {
    max-width: 700px;
    margin: 0 auto var(--space-xl);
}

.search-box {
    display: flex;
    gap: var(--space-sm);
    padding: var(--space-sm);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    transition: all var(--duration-normal) var(--ease-out);
}

.search-box:focus-within {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--cyan);
    box-shadow: var(--shadow-glow-cyan);
}

.search-inner {
    flex: 1;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 0 var(--space-md);
}

.search-icon {
    width: 22px;
    height: 22px;
    color: var(--gray-500);
    flex-shrink: 0;
}

#search-input {
    flex: 1;
    background: none;
    border: none;
    font-size: 1.1rem;
    color: var(--white);
    outline: none;
    min-width: 0;
}

#search-input::placeholder {
    color: var(--gray-500);
}

.voice-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: var(--gray-400);
    cursor: pointer;
    transition: all var(--duration-fast);
    flex-shrink: 0;
}

.voice-btn:hover {
    background: rgba(6, 182, 212, 0.1);
    border-color: var(--cyan);
    color: var(--cyan);
}

.voice-btn.listening {
    background: rgba(6, 182, 212, 0.2);
    border-color: var(--cyan);
    color: var(--cyan);
    animation: pulse 1s infinite;
}

.voice-btn svg {
    width: 20px;
    height: 20px;
}

.search-btn {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    color: var(--white);
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-out);
    white-space: nowrap;
}

.search-btn svg {
    width: 18px;
    height: 18px;
    transition: transform var(--duration-fast);
}

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

.search-btn:hover svg {
    transform: translateX(4px);
}

.voice-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    color: var(--cyan);
    font-size: 0.9rem;
}

.voice-indicator.hidden {
    display: none;
}

.voice-wave {
    width: 24px;
    height: 24px;
    border: 2px solid var(--cyan);
    border-radius: 50%;
    animation: wave 1s ease-in-out infinite;
}

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

/* Condition Tags */
.condition-tags {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
}

.tags-label {
    font-size: 0.85rem;
    color: var(--gray-500);
}

.tags-scroll {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-sm);
    max-width: 800px;
}

.tag {
    padding: var(--space-sm) var(--space-md);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    color: var(--gray-400);
    cursor: pointer;
    transition: all var(--duration-fast);
}

.tag:hover {
    background: rgba(6, 182, 212, 0.1);
    border-color: rgba(6, 182, 212, 0.3);
    color: var(--cyan-light);
    transform: translateY(-2px);
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--space-xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    color: var(--gray-500);
    font-size: 0.8rem;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--gray-500), transparent);
    animation: scroll-bounce 2s ease-in-out infinite;
}

@keyframes scroll-bounce {
    0%, 100% { transform: scaleY(1); opacity: 1; }
    50% { transform: scaleY(0.5); opacity: 0.5; }
}

/* =============================================================================
   RESULTS SECTION
   ============================================================================= */

.results-section {
    min-height: 100vh;
    padding: var(--space-4xl) var(--space-lg);
}

.results-section.hidden {
    display: none;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
}

.back-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    color: var(--gray-400);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--duration-fast);
    margin-bottom: var(--space-xl);
}

.back-btn svg {
    width: 18px;
    height: 18px;
}

.back-btn:hover {
    border-color: var(--cyan);
    color: var(--cyan);
}

.results-header {
    margin-bottom: var(--space-2xl);
}

.results-header h2 {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.results-subtitle {
    color: var(--gray-400);
    font-size: 1.1rem;
}

/* Prompt Module */
.prompt-module,
.providers-module {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    margin-bottom: var(--space-2xl);
}

.module-header {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.step-badge {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    flex-shrink: 0;
}

.module-header h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.module-header p {
    color: var(--gray-400);
    font-size: 0.95rem;
}

/* Form Styles */
.prompt-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

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

.form-field label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--gray-300);
}

.required {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--amber);
    background: rgba(245, 158, 11, 0.1);
    padding: 2px 8px;
    border-radius: var(--radius-full);
}

.form-field input,
.form-field textarea {
    padding: var(--space-md);
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: inherit;
    color: var(--white);
    transition: all var(--duration-fast);
}

.form-field input:focus,
.form-field textarea:focus {
    outline: none;
    border-color: var(--cyan);
    box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.1);
}

.form-field input::placeholder,
.form-field textarea::placeholder {
    color: var(--gray-600);
}

.form-field textarea {
    min-height: 80px;
    resize: vertical;
}

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

.form-divider {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin: var(--space-sm) 0;
    color: var(--gray-500);
    font-size: 0.85rem;
}

.form-divider::before,
.form-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: rgba(255, 255, 255, 0.06);
}

.generate-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-md);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--white);
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-out);
    margin-top: var(--space-md);
}

.generate-btn svg {
    width: 20px;
    height: 20px;
}

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

/* Prompt Output */
.prompt-output {
    margin-top: var(--space-xl);
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.prompt-output.hidden {
    display: none;
}

.output-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md) var(--space-lg);
    background: rgba(255, 255, 255, 0.03);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.output-header span {
    font-weight: 600;
    color: var(--gray-300);
}

.copy-btn {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-md);
    background: var(--cyan);
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--gray-950);
    cursor: pointer;
    transition: all var(--duration-fast);
}

.copy-btn svg {
    width: 16px;
    height: 16px;
}

.copy-btn:hover {
    background: var(--cyan-light);
}

.copy-btn.copied {
    background: var(--green);
}

#prompt-text {
    padding: var(--space-lg);
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 0.85rem;
    line-height: 1.8;
    color: var(--gray-300);
    white-space: pre-wrap;
    max-height: 350px;
    overflow-y: auto;
}

.ai-links {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    background: rgba(255, 255, 255, 0.02);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    flex-wrap: wrap;
}

.ai-links > span {
    color: var(--gray-500);
    font-size: 0.85rem;
}

.ai-link {
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none;
    transition: all var(--duration-fast);
}

.ai-link.chatgpt { background: rgba(16, 163, 127, 0.1); color: #10a37f; border: 1px solid rgba(16, 163, 127, 0.2); }
.ai-link.gemini { background: rgba(66, 133, 244, 0.1); color: #4285f4; border: 1px solid rgba(66, 133, 244, 0.2); }
.ai-link.grok { background: rgba(255, 255, 255, 0.05); color: var(--gray-300); border: 1px solid rgba(255, 255, 255, 0.1); }
.ai-link.claude { background: rgba(204, 119, 34, 0.1); color: #cc7722; border: 1px solid rgba(204, 119, 34, 0.2); }

.ai-link:hover {
    transform: translateY(-1px);
}

/* Provider Cards */
.providers-grid {
    display: grid;
    gap: var(--space-md);
}

.provider-card {
    padding: var(--space-lg);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-lg);
    transition: all var(--duration-normal) var(--ease-out);
}

.provider-card:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(6, 182, 212, 0.3);
    transform: translateY(-2px);
}

.card-header {
    margin-bottom: var(--space-sm);
}

.card-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    font-size: 0.85rem;
}

.type-label { color: var(--cyan-light); }
.location { color: var(--gray-500); }
.remote-badge { color: var(--green); }

.card-description {
    color: var(--gray-400);
    font-size: 0.95rem;
    margin-bottom: var(--space-md);
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    background: var(--cyan);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--gray-950);
    text-decoration: none;
    transition: all var(--duration-fast);
}

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

/* Loading */
.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-2xl);
    color: var(--gray-400);
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-top-color: var(--cyan);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* =============================================================================
   STATS SECTION
   ============================================================================= */

.stats-section {
    padding: var(--space-4xl) var(--space-lg);
    position: relative;
}

.section-intro {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.section-tag {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    background: rgba(6, 182, 212, 0.1);
    border: 1px solid rgba(6, 182, 212, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--cyan-light);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-md);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--space-md);
}

.section-desc {
    color: var(--gray-400);
    font-size: 1.1rem;
    max-width: 500px;
    margin: 0 auto;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
    max-width: 1000px;
    margin: 0 auto;
}

.stat-card {
    padding: var(--space-xl);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-xl);
    text-align: center;
    transition: all var(--duration-normal) var(--ease-out);
    position: relative;
    overflow: hidden;
}

.stat-card:hover {
    transform: translateY(-4px);
    border-color: rgba(6, 182, 212, 0.3);
}

.stat-featured {
    grid-column: span 4;
    padding: var(--space-2xl);
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.1), rgba(139, 92, 246, 0.1));
    border-color: rgba(6, 182, 212, 0.3);
}

.stat-glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.1), transparent 50%);
    animation: glow-rotate 20s linear infinite;
}

@keyframes glow-rotate {
    to { transform: rotate(360deg); }
}

.stat-value {
    font-family: var(--font-display);
    font-size: 3.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline;
    position: relative;
    z-index: 1;
}

.stat-featured .stat-value {
    font-size: 5rem;
}

.stat-unit {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--cyan);
    display: inline;
    position: relative;
    z-index: 1;
}

.stat-featured .stat-unit {
    font-size: 3rem;
}

.stat-value-text {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-sm);
}

.stat-label {
    color: var(--gray-300);
    font-size: 0.95rem;
    line-height: 1.5;
    margin: var(--space-sm) 0;
    position: relative;
    z-index: 1;
}

.stat-source {
    display: block;
    font-size: 0.75rem;
    color: var(--gray-500);
    font-style: italic;
    position: relative;
    z-index: 1;
}

/* =============================================================================
   BENEFITS SECTION
   ============================================================================= */

.benefits-section {
    padding: var(--space-4xl) var(--space-lg);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
    max-width: 1100px;
    margin: 0 auto;
}

.benefit-card {
    padding: var(--space-xl);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-xl);
    transition: all var(--duration-normal) var(--ease-out);
    transform-style: preserve-3d;
}

.benefit-card:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(6, 182, 212, 0.3);
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.benefit-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.15), rgba(139, 92, 246, 0.15));
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
}

.benefit-icon svg {
    width: 28px;
    height: 28px;
    color: var(--cyan-light);
}

.benefit-card h3 {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.benefit-card p {
    color: var(--gray-400);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* =============================================================================
   HOW SECTION
   ============================================================================= */

.how-section {
    padding: var(--space-4xl) var(--space-lg);
}

.process-timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.process-line {
    position: absolute;
    left: 24px;
    top: 48px;
    bottom: 48px;
    width: 2px;
    background: linear-gradient(to bottom, var(--cyan), var(--violet));
    opacity: 0.3;
}

.process-step {
    display: flex;
    gap: var(--space-xl);
    margin-bottom: var(--space-2xl);
    position: relative;
}

.process-step:last-child {
    margin-bottom: 0;
}

.step-marker {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: 50%;
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    flex-shrink: 0;
    position: relative;
    z-index: 1;
}

.step-content {
    flex: 1;
    padding-top: var(--space-sm);
}

.step-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.step-content p {
    color: var(--gray-400);
    font-size: 0.95rem;
}

/* =============================================================================
   CTA SECTION
   ============================================================================= */

.cta-section {
    padding: var(--space-4xl) var(--space-lg);
}

.cta-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    padding: var(--space-3xl);
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.1), rgba(139, 92, 246, 0.1));
    border: 1px solid rgba(6, 182, 212, 0.2);
    border-radius: var(--radius-xl);
    position: relative;
    overflow: hidden;
}

.cta-content::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.02'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.cta-content h2 {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: var(--space-md);
    position: relative;
    z-index: 1;
}

.cta-content > p {
    color: var(--gray-400);
    font-size: 1.1rem;
    margin-bottom: var(--space-xl);
    position: relative;
    z-index: 1;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
}

.cta-card {
    padding: var(--space-lg);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    min-width: 150px;
}

.cta-icon {
    display: block;
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
}

.cta-card strong {
    display: block;
    font-size: 1rem;
    margin-bottom: var(--space-xs);
}

.cta-card span {
    font-size: 0.85rem;
    color: var(--gray-400);
}

.cta-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-2xl);
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--white);
    text-decoration: none;
    transition: all var(--duration-normal) var(--ease-out);
    position: relative;
    z-index: 1;
}

.cta-btn svg {
    width: 20px;
    height: 20px;
    transition: transform var(--duration-fast);
}

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

.cta-btn:hover svg {
    transform: translateX(4px);
}

/* =============================================================================
   FOOTER
   ============================================================================= */

.footer {
    padding: var(--space-2xl) var(--space-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-content {
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--space-xl);
}

.footer-brand .logo {
    margin-bottom: var(--space-sm);
}

.footer-brand .logo span {
    color: var(--gray-400);
}

.footer-tagline {
    color: var(--cyan-light);
    font-weight: 500;
}

.footer-disclaimer {
    max-width: 450px;
    color: var(--gray-500);
    font-size: 0.85rem;
    line-height: 1.7;
}

/* =============================================================================
   RESPONSIVE
   ============================================================================= */

@media (max-width: 1024px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stat-featured {
        grid-column: span 2;
    }
    
    .benefits-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .hero {
        min-height: auto;
        padding: var(--space-2xl) var(--space-md) var(--space-xl);
    }
    
    .hero-content {
        max-width: 100%;
    }
    
    .hero-subtitle {
        font-size: 0.95rem;
        padding: 0 var(--space-sm);
    }
    
    .search-module {
        max-width: 100%;
    }
    
    .search-box {
        flex-direction: column;
    }
    
    .search-btn {
        width: 100%;
        justify-content: center;
    }
    
    .scroll-indicator {
        display: none;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-featured {
        grid-column: span 1;
    }
    
    .stat-featured .stat-value {
        font-size: 4rem;
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
    }
    
    .process-step {
        flex-direction: column;
        gap: var(--space-md);
    }
    
    .process-line {
        display: none;
    }
    
    .cta-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-card {
        width: 100%;
        max-width: 250px;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
        align-items: center;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .ai-links {
        flex-direction: column;
        align-items: stretch;
    }
    
    .ai-link {
        text-align: center;
    }
}

@media (max-width: 480px) {
    :root {
        --space-lg: 16px;
        --space-xl: 24px;
        --space-2xl: 32px;
        --space-3xl: 48px;
        --space-4xl: 64px;
    }
    
    .hero {
        padding: var(--space-xl) var(--space-md) var(--space-lg);
    }
    
    .hero-badge {
        margin-bottom: var(--space-md);
    }
    
    .hero-title {
        font-size: 1.75rem;
        margin-bottom: var(--space-md);
    }
    
    #search-input {
        font-size: 16px;
    }
    
    .form-field input,
    .form-field textarea {
        font-size: 16px;
    }
    
    .stat-value {
        font-size: 2.5rem;
    }
    
    .stat-featured .stat-value {
        font-size: 3rem;
    }
    
    .tags-scroll {
        justify-content: flex-start;
        overflow-x: auto;
        flex-wrap: nowrap;
        padding-bottom: var(--space-sm);
        -webkit-overflow-scrolling: touch;
    }
    
    .tag {
        flex-shrink: 0;
    }
}

/* Animations */
[data-animate] {
    opacity: 0;
    transform: translateY(20px);
}

[data-animate="fade-up"].animated {
    opacity: 1;
    transform: translateY(0);
    transition: all 0.6s var(--ease-out);
}

[data-animate="scale-up"] {
    transform: scale(0.95);
}

[data-animate="scale-up"].animated {
    opacity: 1;
    transform: scale(1);
    transition: all 0.6s var(--ease-out);
}

[data-animate="fade-right"] {
    transform: translateX(-30px);
}

[data-animate="fade-right"].animated {
    opacity: 1;
    transform: translateX(0);
    transition: all 0.6s var(--ease-out);
}

[data-animate="fade-left"] {
    transform: translateX(30px);
}

[data-animate="fade-left"].animated {
    opacity: 1;
    transform: translateX(0);
    transition: all 0.6s var(--ease-out);
}

/* =============================================================================
   LANGUAGE SWITCHER
   ============================================================================= */

.lang-switcher {
    position: relative;
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    color: var(--gray-400);
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all var(--duration-fast);
}

.lang-btn:hover {
    border-color: var(--cyan);
    color: var(--cyan);
}

.lang-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 160px;
    background: var(--gray-900);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    padding: 6px;
    z-index: 200;
    box-shadow: var(--shadow-lg);
}

.lang-option {
    display: block;
    width: 100%;
    padding: 10px 14px;
    background: none;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--gray-300);
    font-size: 0.9rem;
    text-align: left;
    cursor: pointer;
    transition: background var(--duration-fast);
}

.lang-option:hover {
    background: rgba(255, 255, 255, 0.06);
}

.lang-option.active {
    color: var(--cyan-light);
    background: rgba(6, 182, 212, 0.1);
}

/* =============================================================================
   URGENCY SELECTOR
   ============================================================================= */

.urgency-selector {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.urgency-option {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    padding: var(--space-md);
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--duration-fast);
    text-align: left;
    color: inherit;
    font-family: inherit;
    font-size: inherit;
}

.urgency-option:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(255, 255, 255, 0.12);
}

.urgency-option.selected {
    border-color: var(--cyan);
    background: rgba(6, 182, 212, 0.08);
    box-shadow: 0 0 0 2px rgba(6, 182, 212, 0.15);
}

.urgency-dot {
    font-size: 1.1rem;
    flex-shrink: 0;
    margin-top: 2px;
}

.urgency-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.urgency-text strong {
    font-size: 0.95rem;
    color: var(--gray-200);
}

.urgency-text span {
    font-size: 0.85rem;
    color: var(--gray-500);
    line-height: 1.4;
}

/* =============================================================================
   CHAT INTERFACE
   ============================================================================= */

.chat-fab {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--gradient-primary);
    border: none;
    color: white;
    cursor: pointer;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-glow-cyan);
    transition: all var(--duration-normal) var(--ease-out);
}

.chat-fab:hover {
    transform: scale(1.1);
    box-shadow: 0 0 40px rgba(6, 182, 212, 0.5);
}

.chat-panel {
    position: fixed;
    bottom: 96px;
    right: 24px;
    width: 400px;
    max-height: 560px;
    background: var(--gray-900);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    z-index: 1001;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.chat-panel.hidden {
    display: none !important;
}

.chat-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md) var(--space-lg);
    background: rgba(255, 255, 255, 0.03);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.chat-header-left {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 600;
    color: var(--gray-200);
    font-size: 0.95rem;
}

.chat-close {
    background: none;
    border: none;
    color: var(--gray-400);
    cursor: pointer;
    font-size: 1.2rem;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    transition: all var(--duration-fast);
}

.chat-close:hover {
    background: rgba(255, 255, 255, 0.06);
    color: var(--white);
}

.chat-disclaimer {
    padding: var(--space-sm) var(--space-md);
    background: rgba(245, 158, 11, 0.08);
    border-bottom: 1px solid rgba(245, 158, 11, 0.15);
    font-size: 0.8rem;
    color: var(--amber);
    line-height: 1.5;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-md);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    min-height: 280px;
    max-height: 360px;
}

.chat-msg {
    padding: var(--space-md);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    line-height: 1.7;
    max-width: 90%;
}

.chat-msg.user {
    background: rgba(6, 182, 212, 0.15);
    border: 1px solid rgba(6, 182, 212, 0.2);
    align-self: flex-end;
    color: var(--gray-100);
}

.chat-msg.assistant {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    align-self: flex-start;
    color: var(--gray-200);
}

.chat-msg.assistant p { margin-bottom: 0.5em; }
.chat-msg.assistant p:last-child { margin-bottom: 0; }

.chat-continue-links {
    margin-top: var(--space-sm);
    padding-top: var(--space-sm);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    font-size: 0.85rem;
}

.chat-continue-links a {
    display: inline-block;
    margin: 4px 6px 4px 0;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.8rem;
}

.chat-continue-links a.chatgpt { background: rgba(16, 163, 127, 0.1); color: #10a37f; }
.chat-continue-links a.claude { background: rgba(204, 119, 34, 0.1); color: #cc7722; }
.chat-continue-links a.gemini { background: rgba(66, 133, 244, 0.1); color: #4285f4; }

.chat-input-row {
    display: flex;
    gap: var(--space-sm);
    padding: var(--space-md);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    background: rgba(0, 0, 0, 0.2);
}

#chat-input {
    flex: 1;
    padding: var(--space-sm) var(--space-md);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-family: inherit;
    color: var(--white);
    outline: none;
    min-width: 0;
}

#chat-input:focus {
    border-color: var(--cyan);
}

#chat-input::placeholder {
    color: var(--gray-600);
}

.chat-send {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    cursor: pointer;
    flex-shrink: 0;
    transition: all var(--duration-fast);
}

.chat-send:hover {
    transform: scale(1.05);
}

/* =============================================================================
   READABILITY: PROVIDER CARDS ENHANCED
   ============================================================================= */

.provider-card {
    padding: var(--space-xl) var(--space-xl);
}

.card-title {
    font-size: 1.2rem;
}

.card-description {
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: var(--space-lg);
}

.providers-grid {
    gap: var(--space-lg);
}

/* =============================================================================
   RESPONSIVE ADDITIONS
   ============================================================================= */

@media (max-width: 768px) {
    body {
        font-size: 16px;
    }

    .lang-switcher {
        position: static;
    }

    .lang-dropdown {
        position: fixed;
        top: auto;
        bottom: 0;
        left: 0;
        right: 0;
        border-radius: var(--radius-xl) var(--radius-xl) 0 0;
        padding: var(--space-md);
    }

    .nav-links {
        display: flex !important;
        gap: var(--space-sm);
    }

    .nav-link {
        display: none;
    }

    .chat-panel {
        right: 0;
        left: 0;
        bottom: 0;
        width: 100%;
        max-height: 85vh;
        border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    }

    .chat-fab {
        bottom: 16px;
        right: 16px;
        width: 56px;
        height: 56px;
    }

    .search-btn,
    .generate-btn,
    .btn-primary,
    .cta-btn {
        min-height: 48px;
    }

    .tag {
        min-height: 44px;
        display: flex;
        align-items: center;
    }
}

/* RTL support */
html[dir="rtl"] .nav-inner {
    flex-direction: row-reverse;
}

html[dir="rtl"] .search-inner {
    flex-direction: row-reverse;
}

html[dir="rtl"] .chat-panel {
    right: auto;
    left: 24px;
}

html[dir="rtl"] .chat-fab {
    right: auto;
    left: 24px;
}

@media (max-width: 768px) {
    html[dir="rtl"] .chat-panel {
        left: 0;
        right: 0;
    }

    html[dir="rtl"] .chat-fab {
        left: 16px;
        right: auto;
    }
}

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