/* ===================================
   CONVERSO - Main Stylesheet
   Modern, Clean, Professional Design
   =================================== */

/* CSS Variables */
:root {
  /* Colors - Dark Theme with Vibrant Accents */
  --color-bg-primary: #0a0a0f;
  --color-bg-secondary: #12121a;
  --color-bg-tertiary: #1a1a25;
  --color-bg-card: #16161f;
  --color-bg-elevated: #1e1e2a;
  
  --color-text-primary: #f5f5f7;
  --color-text-secondary: #a1a1aa;
  --color-text-muted: #71717a;
  
  --color-primary: #6366f1;
  --color-primary-hover: #818cf8;
  --color-primary-light: rgba(99, 102, 241, 0.1);
  
  --color-secondary: #f472b6;
  --color-accent: #22d3ee;
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-danger: #ef4444;
  
  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-hover: rgba(255, 255, 255, 0.15);
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a855f7 100%);
  --gradient-secondary: linear-gradient(135deg, #f472b6 0%, #ec4899 100%);
  --gradient-accent: linear-gradient(135deg, #22d3ee 0%, #06b6d4 100%);
  --gradient-dark: linear-gradient(180deg, #0a0a0f 0%, #12121a 100%);
  
  /* Typography */
  --font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3.5rem;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.3);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
  
  /* Z-Index Scale */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-modal: 300;
  --z-toast: 400;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text-primary);
  background: var(--color-bg-primary);
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
}

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

img, video {
  max-width: 100%;
  height: auto;
  display: block;
}

ul, ol {
  list-style: none;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

/* Container */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* ===================================
   HEADER & NAVIGATION
   =================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  background: rgba(10, 10, 15, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
  gap: var(--spacing-xl);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-weight: 700;
  font-size: var(--font-size-xl);
}

.logo-icon {
  font-size: 1.75rem;
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--color-text-secondary);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

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

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

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--spacing-sm);
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: 2px;
  transition: var(--transition-fast);
}

/* User Menu */
.user-menu {
  position: relative;
}

.user-menu-trigger {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-full);
  transition: background var(--transition-fast);
}

.user-menu-trigger:hover {
  background: var(--color-bg-tertiary);
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  object-fit: cover;
}

.user-avatar-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  color: white;
  font-weight: 600;
}

.user-name {
  font-weight: 500;
  color: var(--color-text-primary);
}

.user-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 200px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-fast);
}

.user-menu:hover .user-dropdown,
.user-dropdown:hover {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.dropdown-item:first-child {
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.dropdown-item:last-child {
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.dropdown-item:hover {
  background: var(--color-bg-tertiary);
  color: var(--color-text-primary);
}

.dropdown-item-danger:hover {
  background: rgba(239, 68, 68, 0.1);
  color: var(--color-danger);
}

.dropdown-divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--spacing-xs) 0;
}

/* ===================================
   BUTTONS
   =================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  font-weight: 600;
  font-size: var(--font-size-sm);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-sm {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: var(--font-size-xs);
}

.btn-lg {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-base);
}

.btn-block {
  width: 100%;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
}

.btn-outline {
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
  background: transparent;
}

.btn-outline:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

.btn-ghost {
  color: var(--color-text-secondary);
  background: transparent;
}

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

.btn-danger {
  background: var(--color-danger);
  color: white;
}

.btn-danger:hover {
  background: #dc2626;
}

.btn-white {
  background: white;
  color: var(--color-bg-primary);
}

.btn-white:hover {
  background: #f0f0f0;
}

/* Icon Buttons */
.icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

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

/* ===================================
   FORMS
   =================================== */
.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 500;
  color: var(--color-text-primary);
}

.optional {
  font-weight: 400;
  color: var(--color-text-muted);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--spacing-md);
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-muted);
}

.form-hint {
  display: block;
  margin-top: var(--spacing-xs);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.input-icon {
  position: relative;
}

.input-icon i {
  position: absolute;
  left: var(--spacing-md);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
}

.input-icon .form-input {
  padding-left: 2.75rem;
}

.toggle-password {
  position: absolute;
  right: var(--spacing-sm);
  top: 50%;
  transform: translateY(-50%);
  padding: var(--spacing-sm);
  color: var(--color-text-muted);
}

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

/* Checkboxes */
.checkbox-label {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  cursor: pointer;
  user-select: none;
}

.checkbox-label input {
  display: none;
}

.checkmark {
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.checkbox-label input:checked + .checkmark {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.checkbox-label input:checked + .checkmark::after {
  content: '✓';
  color: white;
  font-size: 12px;
}

.form-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-lg);
}

.form-link {
  color: var(--color-primary);
  font-size: var(--font-size-sm);
}

.form-link:hover {
  text-decoration: underline;
}

/* Interest Tags */
.interest-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.interest-tag {
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.interest-tag input {
  display: none;
}

.interest-tag:has(input:checked) {
  background: var(--color-primary-light);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* ===================================
   ALERTS & MESSAGES
   =================================== */
.alert {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-lg);
}

.alert-error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: var(--color-danger);
}

.alert-success {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: var(--color-success);
}

.flash-message {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md) var(--spacing-lg);
  margin: var(--spacing-md) auto;
  max-width: 600px;
  border-radius: var(--radius-md);
  animation: slideDown 0.3s ease;
}

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

.flash-success {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: var(--color-success);
}

.flash-error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: var(--color-danger);
}

.flash-close {
  margin-left: auto;
  padding: var(--spacing-xs);
  font-size: var(--font-size-xl);
  opacity: 0.7;
  cursor: pointer;
}

.flash-close:hover {
  opacity: 1;
}

/* ===================================
   HERO SECTION
   =================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 70px;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.hero-gradient {
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(99, 102, 241, 0.3), transparent),
    radial-gradient(ellipse 60% 40% at 80% 60%, rgba(168, 85, 247, 0.2), transparent),
    radial-gradient(ellipse 50% 30% at 20% 80%, rgba(34, 211, 238, 0.15), transparent);
}

.hero-pattern {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 50px 50px;
}

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

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--spacing-lg);
}

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

.hero-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
  max-width: 500px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.hero-features {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
}

.hero-feature {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--color-text-secondary);
}

.hero-feature i {
  color: var(--color-primary);
}

/* Hero Visual */
.hero-visual {
  position: relative;
  height: 500px;
}

.hero-card {
  position: absolute;
  width: 280px;
  padding: var(--spacing-lg);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  animation: float 6s ease-in-out infinite;
}

.hero-card-1 {
  top: 10%;
  left: 10%;
  animation-delay: 0s;
}

.hero-card-2 {
  top: 40%;
  right: 5%;
  animation-delay: -2s;
}

.hero-card-3 {
  bottom: 10%;
  left: 20%;
  animation-delay: -4s;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-20px); }
}

.video-preview {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.video-avatar {
  font-size: 2.5rem;
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-lg);
}

/* ===================================
   SECTIONS
   =================================== */
.section {
  padding: var(--spacing-3xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.section-title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
}

.section-action {
  text-align: center;
  margin-top: var(--spacing-xl);
}

/* Modes Section */
.modes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
}

.mode-card {
  position: relative;
  padding: var(--spacing-xl);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  transition: all var(--transition-base);
}

.mode-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-5px);
  box-shadow: var(--shadow-glow);
}

.mode-card-featured {
  border-color: var(--color-primary);
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(168, 85, 247, 0.05));
}

.mode-badge {
  position: absolute;
  top: -10px;
  right: var(--spacing-lg);
  padding: var(--spacing-xs) var(--spacing-sm);
  background: var(--gradient-primary);
  color: white;
  font-size: var(--font-size-xs);
  font-weight: 600;
  border-radius: var(--radius-full);
}

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

.mode-card h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-sm);
}

.mode-card p {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-lg);
}

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

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

.feature-card:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-5px);
}

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

.feature-card h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-sm);
}

.feature-card p {
  color: var(--color-text-secondary);
}

/* Rooms Scroll */
.rooms-scroll {
  display: flex;
  gap: var(--spacing-md);
  overflow-x: auto;
  padding: var(--spacing-sm) 0;
  scrollbar-width: none;
}

.rooms-scroll::-webkit-scrollbar {
  display: none;
}

.room-card {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-lg);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  min-width: 140px;
  transition: all var(--transition-fast);
}

.room-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-3px);
}

.room-icon {
  font-size: 2rem;
}

.room-name {
  font-weight: 600;
  text-align: center;
}

.room-users {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* CTA Section */
.cta-section {
  background: var(--gradient-dark);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(99, 102, 241, 0.2), transparent 70%);
}

.cta-content {
  position: relative;
  text-align: center;
  padding: var(--spacing-3xl) 0;
}

.cta-content h2 {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-md);
}

.cta-content p {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

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

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

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

.footer-tagline {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-lg);
  max-width: 300px;
}

.footer-social {
  display: flex;
  gap: var(--spacing-sm);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.social-link:hover {
  background: var(--color-primary);
  color: white;
}

.footer-links h4 {
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-md);
}

.footer-links li {
  margin-bottom: var(--spacing-sm);
}

.footer-links a {
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-text-primary);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

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

.online-indicator {
  width: 8px;
  height: 8px;
  background: var(--color-success);
  border-radius: var(--radius-full);
  animation: pulse 2s infinite;
}

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

/* ===================================
   MODALS
   =================================== */
.modal {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

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

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(5px);
}

.modal-content {
  position: relative;
  width: 90%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  animation: modalSlide 0.3s ease;
}

.modal.active .modal-content {
  transform: scale(1);
}

@keyframes modalSlide {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(-20px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.modal-close {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  font-size: var(--font-size-2xl);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: color var(--transition-fast);
}

.modal-close:hover {
  color: var(--color-text-primary);
}

.modal-title {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-sm);
}

.modal-subtitle {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
}

.modal-footer-text {
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-top: var(--spacing-lg);
}

.modal-footer-text a {
  color: var(--color-primary);
}

/* ===================================
   AUTH PAGES
   =================================== */
.auth-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.auth-page .header {
  background: transparent;
  border-bottom: none;
}

.auth-section {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-2xl);
}

.auth-container {
  width: 100%;
  max-width: 420px;
}

.auth-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
}

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

.auth-logo {
  display: inline-flex;
  margin-bottom: var(--spacing-lg);
}

.auth-title {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-sm);
}

.auth-subtitle {
  color: var(--color-text-secondary);
}

.auth-divider {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin: var(--spacing-lg) 0;
  color: var(--color-text-muted);
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-border);
}

.auth-footer {
  text-align: center;
  margin-top: var(--spacing-lg);
  color: var(--color-text-secondary);
}

.auth-footer a {
  color: var(--color-primary);
  font-weight: 500;
}

/* ===================================
   ERROR PAGES
   =================================== */
.error-page .main-content {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.error-section {
  text-align: center;
  padding: var(--spacing-3xl);
}

.error-icon {
  font-size: 5rem;
  margin-bottom: var(--spacing-lg);
}

.error-code {
  font-size: 6rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: var(--spacing-md);
}

.error-title {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-md);
}

.error-message {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}

.error-actions {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.error-details {
  margin-top: var(--spacing-xl);
  text-align: left;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.error-details summary {
  cursor: pointer;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-md);
}

.error-details pre {
  background: var(--color-bg-tertiary);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  overflow-x: auto;
  font-size: var(--font-size-sm);
  color: var(--color-danger);
}

/* ===================================
   LOBBY PAGE
   =================================== */
.lobby-section {
  padding-top: calc(70px + var(--spacing-2xl));
  min-height: 100vh;
}

.lobby-header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.lobby-title {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-sm);
}

.lobby-subtitle {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-lg);
}

.online-stats {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
}

.lobby-modes {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-2xl);
}

.lobby-card {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-lg);
  padding: var(--spacing-xl);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  transition: all var(--transition-base);
}

.lobby-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-5px);
  box-shadow: var(--shadow-glow);
}

.lobby-card-primary {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), transparent);
}

.lobby-card-featured {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(168, 85, 247, 0.1));
  border-color: var(--color-primary);
}

.lobby-card-badge {
  position: absolute;
  top: -10px;
  right: var(--spacing-lg);
  padding: var(--spacing-xs) var(--spacing-sm);
  background: var(--gradient-primary);
  color: white;
  font-size: var(--font-size-xs);
  font-weight: 600;
  border-radius: var(--radius-full);
}

.lobby-card-icon {
  font-size: 2.5rem;
  flex-shrink: 0;
}

.lobby-card-content h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-xs);
}

.lobby-card-content p {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-md);
}

.lobby-card-action {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--color-primary);
  font-weight: 500;
}

/* Lobby Rooms */
.lobby-rooms {
  margin-bottom: var(--spacing-2xl);
}

.lobby-rooms-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
}

.lobby-rooms-header h2 {
  font-size: var(--font-size-xl);
}

.view-all {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--color-primary);
  font-weight: 500;
}

.rooms-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--spacing-md);
}

.room-tile {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}

.room-tile:hover {
  border-color: var(--color-primary);
  background: var(--color-bg-tertiary);
}

.room-tile-icon {
  font-size: 1.75rem;
}

.room-tile-info {
  display: flex;
  flex-direction: column;
}

.room-tile-name {
  font-weight: 500;
}

.room-tile-users {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* Lobby Tips */
.lobby-tips {
  padding: var(--spacing-lg);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
}

.lobby-tips h3 {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
  color: var(--color-warning);
}

.lobby-tips ul {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-sm);
}

.lobby-tips li {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--color-text-secondary);
}

.lobby-tips li::before {
  content: '✓';
  color: var(--color-success);
}

/* ===================================
   RESPONSIVE
   =================================== */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }
  
  .hero-actions {
    justify-content: center;
  }
  
  .hero-features {
    justify-content: center;
  }
  
  .hero-visual {
    display: none;
  }
  
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  
  .nav-toggle {
    display: flex;
  }
  
  .hero {
    min-height: auto;
    padding-top: 100px;
    padding-bottom: var(--spacing-2xl);
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .footer-brand {
    align-items: center;
  }
  
  .footer-tagline {
    margin-left: auto;
    margin-right: auto;
  }
  
  .footer-social {
    justify-content: center;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: var(--spacing-md);
    text-align: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--spacing-md);
  }
  
  .section {
    padding: var(--spacing-2xl) 0;
  }
  
  .auth-card {
    padding: var(--spacing-lg);
  }
  
  .btn-lg {
    padding: var(--spacing-sm) var(--spacing-lg);
  }
}

/* Main content wrapper */
.main-content {
  padding-top: 70px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}