/* ============================================
   AI Medical Platform - Stylesheet
   Author: byShukrullo
   Version: 2.0
   ============================================ */

/* ============================================
   CSS Variables & Base
   ============================================ */
:root {
  /* Colors */
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-tertiary: #1a1a24;
  --bg-card: rgba(26, 26, 36, 0.8);
  --bg-glass: rgba(255, 255, 255, 0.03);
  
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.7);
  --text-tertiary: rgba(255, 255, 255, 0.5);
  --text-muted: rgba(255, 255, 255, 0.4);
  
  --accent-primary: #00d4ff;
  --accent-secondary: #6366f1;
  --accent-tertiary: #8b5cf6;
  --gradient-primary: linear-gradient(135deg, #00d4ff 0%, #6366f1 50%, #8b5cf6 100%);
  --gradient-glow: linear-gradient(135deg, rgba(0, 212, 255, 0.3), rgba(99, 102, 241, 0.3));
  
  --success: #10b981;
  --warning: #f59e0b;
  --error: #ef4444;
  
  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.15);
  
  /* Model Colors */
  --pneumonia-color: #3b82f6;
  --ckd-color: #10b981;
  --heart-color: #ef4444;
  
  /* Typography */
  --font-primary: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  
  /* Borders */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
  --transition-smooth: 500ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 40px rgba(0, 212, 255, 0.15);
  
  /* Layout */
  --header-height: 72px;
  --container-width: 1200px;
  --container-padding: 1.5rem;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-primary);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

img, svg {
  display: block;
  max-width: 100%;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

ul, ol {
  list-style: none;
}

::selection {
  background: var(--accent-primary);
  color: var(--bg-primary);
}

/* ============================================
   Container & Layout
   ============================================ */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section {
  padding: var(--space-4xl) 0;
  position: relative;
}

/* ============================================
   Ambient Background
   ============================================ */
.ambient-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: -1;
  overflow: hidden;
}

.gradient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.4;
  animation: float 20s ease-in-out infinite;
}

.orb-1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.3) 0%, transparent 70%);
  top: -20%;
  left: -10%;
  animation-delay: 0s;
}

.orb-2 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.25) 0%, transparent 70%);
  top: 50%;
  right: -15%;
  animation-delay: -7s;
}

.orb-3 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.2) 0%, transparent 70%);
  bottom: -10%;
  left: 30%;
  animation-delay: -14s;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  25% { transform: translate(30px, -30px) rotate(5deg); }
  50% { transform: translate(-20px, 20px) rotate(-5deg); }
  75% { transform: translate(40px, 10px) rotate(3deg); }
}

/* ============================================
   Header
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  transition: all var(--transition-base);
}

.header.scrolled {
  background: rgba(10, 10, 15, 0.95);
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.logo-icon {
  width: 36px;
  height: 36px;
}

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

/* Navigation */
.nav {
  display: flex;
  gap: var(--space-xl);
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: var(--space-sm) 0;
  position: relative;
  transition: color var(--transition-fast);
}

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

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
}

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

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

/* Language Switcher */
.lang-switcher {
  display: flex;
  background: var(--bg-tertiary);
  border-radius: var(--radius-full);
  padding: 4px;
  border: 1px solid var(--border-color);
}

.lang-btn {
  padding: 6px 14px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-tertiary);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  letter-spacing: 0.05em;
}

.lang-btn:hover {
  color: var(--text-primary);
}

.lang-btn.active {
  background: var(--gradient-primary);
  color: var(--bg-primary);
}

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px 0;
}

.mobile-toggle span {
  display: block;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition-base);
  transform-origin: center;
}

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

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

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

/* ============================================
   Hero Section
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  position: relative;
  overflow: hidden;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.hero-content {
  animation: fadeInUp 0.8s ease forwards;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  color: var(--accent-primary);
  margin-bottom: var(--space-lg);
}

.hero-badge svg {
  width: 18px;
  height: 18px;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-lg);
}

.hero-title span {
  display: block;
}

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

.hero-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 520px;
  margin-bottom: var(--space-xl);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 14px 28px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  white-space: nowrap;
}

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

.btn-primary {
  background: var(--gradient-primary);
  color: var(--bg-primary);
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 60px rgba(0, 212, 255, 0.25);
}

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

.btn-ghost:hover {
  background: var(--bg-tertiary);
  border-color: var(--border-hover);
}

/* Hero Visual */
.hero-visual {
  animation: fadeInUp 0.8s ease 0.2s forwards;
  opacity: 0;
}

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

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  text-align: center;
  transition: all var(--transition-base);
  animation: fadeInUp 0.6s ease forwards;
  animation-delay: var(--delay);
  opacity: 0;
}

.stat-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-glow);
}

.stat-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--space-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-glow);
  border-radius: var(--radius-md);
}

.stat-icon svg {
  width: 24px;
  height: 24px;
  stroke: var(--accent-primary);
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-xs);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* Hero Scroll Indicator */
.hero-scroll {
  position: absolute;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  animation: bounce 2s infinite;
}

.hero-scroll svg {
  width: 28px;
  height: 28px;
  stroke: var(--text-tertiary);
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
  40% { transform: translateX(-50%) translateY(-8px); }
  60% { transform: translateX(-50%) translateY(-4px); }
}

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

/* ============================================
   Section Headers
   ============================================ */
.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto var(--space-3xl);
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-md);
}

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

/* ============================================
   Models Section
   ============================================ */
.models-section {
  background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

/* Model Tabs */
.model-tabs {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
  flex-wrap: wrap;
}

.model-tab {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition-base);
}

.model-tab:hover {
  border-color: var(--border-hover);
  color: var(--text-primary);
}

.model-tab.active {
  background: var(--gradient-primary);
  border-color: transparent;
  color: var(--bg-primary);
}

.tab-icon {
  width: 22px;
  height: 22px;
}

/* Model Panels */
.model-panels {
  position: relative;
}

.model-panel {
  display: none;
  animation: fadeIn 0.4s ease;
}

.model-panel.active {
  display: block;
}

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

.model-layout {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: var(--space-2xl);
  align-items: start;
}

/* Model Info */
.model-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.model-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.model-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
}

.model-icon svg {
  width: 28px;
  height: 28px;
}

.model-icon.pneumonia {
  background: rgba(59, 130, 246, 0.15);
  color: var(--pneumonia-color);
}

.model-icon.ckd {
  background: rgba(16, 185, 129, 0.15);
  color: var(--ckd-color);
}

.model-icon.heart {
  background: rgba(239, 68, 68, 0.15);
  color: var(--heart-color);
}

.model-name {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.model-status {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

.model-status.online {
  background: rgba(16, 185, 129, 0.15);
  color: var(--success);
}

.model-status.online::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--success);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

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

.model-status.offline {
  background: rgba(239, 68, 68, 0.15);
  color: var(--error);
}

.model-description {
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Info Cards */
.info-cards {
  display: grid;
  gap: var(--space-md);
}

.info-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
}

.info-card h4 {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

.info-card h4 svg {
  width: 18px;
  height: 18px;
  stroke: var(--accent-primary);
}

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

.spec-list li {
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--border-color);
}

.spec-list li:last-child {
  border-bottom: none;
}

.spec-list li span {
  color: var(--text-tertiary);
}

.spec-list li strong {
  color: var(--text-primary);
  font-weight: 500;
}

.usage-list {
  counter-reset: step;
}

.usage-list li {
  position: relative;
  padding-left: 32px;
  margin-bottom: var(--space-sm);
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.usage-list li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  color: var(--bg-primary);
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 50%;
}

/* Warning Box */
.warning-box {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: rgba(245, 158, 11, 0.08);
  border: 1px solid rgba(245, 158, 11, 0.2);
  border-radius: var(--radius-lg);
}

.warning-box svg {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  stroke: var(--warning);
}

.warning-box strong {
  display: block;
  color: var(--warning);
  margin-bottom: var(--space-xs);
  font-size: 0.9rem;
}

.warning-box p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Model Interface */
.model-interface {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.interface-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
}

.interface-header span {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.hf-link {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.8rem;
  color: var(--text-tertiary);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

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

.hf-link svg {
  width: 16px;
  height: 16px;
}

.gradio-container {
  position: relative;
  min-height: 600px;
}

.gradio-container iframe {
  width: 100%;
  height: 600px;
  border: none;
}

.iframe-loader {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  background: var(--bg-secondary);
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.iframe-loader.loading {
  opacity: 1;
  pointer-events: all;
}

.loader-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-color);
  border-top-color: var(--accent-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

.iframe-loader span {
  font-size: 0.9rem;
  color: var(--text-tertiary);
}

/* ============================================
   About Section
   ============================================ */
.about-section {
  background: var(--bg-secondary);
}

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

.about-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  text-align: center;
  transition: all var(--transition-base);
}

.about-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-glow);
}

.about-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-glow);
  border-radius: var(--radius-lg);
}

.about-icon svg {
  width: 32px;
  height: 32px;
  stroke: var(--accent-primary);
}

.about-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.about-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Tech Stack */
.tech-stack {
  text-align: center;
}

.tech-stack h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--space-xl);
  color: var(--text-secondary);
}

.tech-icons {
  display: flex;
  justify-content: center;
  gap: var(--space-xl);
  flex-wrap: wrap;
}

.tech-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  min-width: 100px;
}

.tech-item:hover {
  transform: translateY(-2px);
  border-color: var(--border-hover);
}

.tech-item svg {
  width: 32px;
  height: 32px;
  fill: var(--accent-primary);
}

.tech-item span {
  font-size: 0.8rem;
  color: var(--text-tertiary);
  font-weight: 500;
}

/* ============================================
   Contact Section
   ============================================ */
.contact-section {
  background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  text-align: center;
  transition: all var(--transition-base);
}

.contact-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-primary);
}

.contact-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto var(--space-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-glow);
  border-radius: var(--radius-md);
}

.contact-icon svg {
  width: 28px;
  height: 28px;
  stroke: var(--accent-primary);
}

.contact-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.contact-card a {
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.contact-card a:hover {
  color: var(--accent-primary);
}

/* ============================================
   Footer
   ============================================ */
.footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--border-color);
  padding: var(--space-3xl) 0 var(--space-xl);
}

.footer-main {
  display: flex;
  justify-content: space-between;
  gap: var(--space-3xl);
  margin-bottom: var(--space-2xl);
  padding-bottom: var(--space-2xl);
  border-bottom: 1px solid var(--border-color);
}

.footer-brand {
  max-width: 300px;
}

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

.footer-brand p {
  font-size: 0.9rem;
  color: var(--text-tertiary);
  line-height: 1.6;
}

.footer-links {
  display: flex;
  gap: var(--space-3xl);
}

.footer-col h4 {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}

.footer-col a {
  display: block;
  font-size: 0.9rem;
  color: var(--text-tertiary);
  padding: var(--space-xs) 0;
  transition: color var(--transition-fast);
}

.footer-col a:hover {
  color: var(--accent-primary);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--text-tertiary);
}

.footer-disclaimer {
  color: var(--text-muted);
}

/* ============================================
   Responsive Styles
   ============================================ */
@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-desc {
    margin-left: auto;
    margin-right: auto;
  }
  
  .hero-actions {
    justify-content: center;
  }
  
  .hero-visual {
    max-width: 500px;
    margin: 0 auto;
  }
  
  .model-layout {
    grid-template-columns: 1fr;
  }
  
  .about-grid {
    grid-template-columns: 1fr;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
  }
  
  .contact-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-main {
    flex-direction: column;
    text-align: center;
  }
  
  .footer-brand {
    max-width: none;
  }
  
  .footer-links {
    justify-content: center;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: var(--space-sm);
    text-align: center;
  }
}

@media (max-width: 768px) {
  :root {
    --container-padding: 1rem;
    --space-4xl: 4rem;
  }
  
  .nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(10, 10, 15, 0.98);
    backdrop-filter: blur(20px);
    padding: var(--space-lg);
    gap: var(--space-md);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-base);
    border-bottom: 1px solid var(--border-color);
  }
  
  .nav.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }
  
  .nav-link {
    padding: var(--space-md);
    text-align: center;
  }
  
  .mobile-toggle {
    display: flex;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
  
  .model-tabs {
    flex-direction: column;
    align-items: stretch;
  }
  
  .model-tab {
    justify-content: center;
  }
  
  .gradio-container {
    min-height: 500px;
  }
  
  .gradio-container iframe {
    height: 500px;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 0 auto;
  }
  
  .footer-links {
    flex-direction: column;
    gap: var(--space-xl);
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .btn {
    width: 100%;
    justify-content: center;
  }
  
  .hero-actions {
    flex-direction: column;
  }
  
  .lang-switcher {
    gap: 2px;
  }
  
  .lang-btn {
    padding: 5px 10px;
    font-size: 0.7rem;
  }
  
  .stat-card {
    padding: var(--space-lg);
  }
  
  .stat-value {
    font-size: 1.75rem;
  }
  
  .info-card {
    padding: var(--space-md);
  }
  
  .warning-box {
    flex-direction: column;
    text-align: center;
  }
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
  .ambient-bg,
  .header,
  .hero-scroll,
  .gradio-container,
  .btn {
    display: none !important;
  }
  
  body {
    background: white;
    color: black;
  }
  
  .section {
    padding: 1rem 0;
  }
}

/* ============================================
   Updating Status - Add to styles.css
   ============================================ */

/* Updating status badge */
.model-status.updating {
  background: rgba(245, 158, 11, 0.15);
  color: #f59e0b;
}

.model-status.updating::before {
  content: '';
  width: 6px;
  height: 6px;
  background: #f59e0b;
  border-radius: 50%;
  animation: pulse 2s infinite;
}

/* Updating placeholder container */
.gradio-container.updating-placeholder {
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
}

.updating-message {
  text-align: center;
  padding: var(--space-3xl);
  max-width: 400px;
}

.updating-message svg {
  width: 64px;
  height: 64px;
  stroke: #f59e0b;
  margin: 0 auto var(--space-xl);
  animation: spin 3s linear infinite;
}

.updating-message h4 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}

.updating-message p {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Mobile responsive */
@media (max-width: 768px) {
  .gradio-container.updating-placeholder {
    min-height: 400px;
  }
  
  .updating-message {
    padding: var(--space-xl);
  }
  
  .updating-message svg {
    width: 48px;
    height: 48px;
  }
  
  .updating-message h4 {
    font-size: 1.25rem;
  }
}