/* ===== CSS VARIABLES ===== */
:root {
  --primary: #0a0a12;
  --secondary: #12121a;
  --accent: #00d9ff;
  --accent-glow: rgba(0, 217, 255, 0.4);
  --text: #e0e0e0;
  --text-dim: #a0a0b0;
  --glass-bg: rgba(20, 20, 30, 0.4);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  --chat-bg: rgba(10, 10, 18, 0.95);
  --chat-border: rgba(255, 255, 255, 0.15);
  --font-size-base: 16px;
  --border-radius: 20px;
  --animation-speed: 0.4s;
  --z-gallery: 1;
  --z-controls: 100;
  --z-chat: 900;
  --z-modal: 1000;
  --z-toast: 1100;
  --z-loading: 9999;
  
  --success: #2ed573;
  --error: #ff4757;
  --warning: #ffa502;
  --info: #70a1ff;
  
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
}

/* ===== THEME VARIATIONS ===== */
.theme-dark {
  --primary: #0a0a0f;
  --secondary: #1a1a25;
  --accent: #00d4ff;
  --accent-glow: rgba(0, 212, 255, 0.4);
  --text: #f0f2f5;
  --text-dim: #8892b0;
  --glass-bg: rgba(15, 23, 35, 0.8);
  --glass-border: rgba(0, 212, 255, 0.2);
  --chat-bg: rgba(10, 15, 25, 0.95);
  --chat-border: rgba(0, 212, 255, 0.3);
}

.theme-light {
  --primary: #f8f9fc;
  --secondary: #e8eaf0;
  --text: #1a202c;
  --text-dim: #4a5568;
  --accent: #ff6b35;
  --accent-glow: rgba(255, 107, 53, 0.4);
  --glass-bg: rgba(248, 249, 252, 0.8);
  --glass-border: rgba(255, 107, 53, 0.2);
  --chat-bg: rgba(248, 249, 252, 0.95);
  --chat-border: rgba(255, 107, 53, 0.3);
}

.theme-cyberpunk {
  --primary: #0f0f23;
  --secondary: #1a1a3a;
  --accent: #00ff88;
  --accent-glow: rgba(0, 255, 136, 0.5);
  --text: #e0e6ed;
  --text-dim: #9ca3af;
  --glass-bg: rgba(0, 255, 136, 0.1);
  --glass-border: rgba(0, 255, 136, 0.3);
  --chat-bg: rgba(15, 15, 35, 0.95);
  --chat-border: rgba(0, 255, 136, 0.4);
}

.theme-ocean {
  --primary: #001a2e;
  --secondary: #002a4a;
  --accent: #00f5ff;
  --accent-glow: rgba(0, 245, 255, 0.4);
  --text: #e1f5fe;
  --text-dim: #81d4fa;
  --glass-bg: rgba(0, 26, 46, 0.7);
  --glass-border: rgba(0, 245, 255, 0.2);
  --chat-bg: rgba(0, 20, 35, 0.95);
  --chat-border: rgba(0, 245, 255, 0.3);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
  font-size: var(--font-size-base);
  line-height: 1.6;
  transition: all var(--animation-speed) ease;
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 20% 80%, var(--accent-glow) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(120, 0, 255, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 40% 40%, rgba(255, 0, 200, 0.05) 0%, transparent 50%);
  z-index: -1;
  transition: all var(--animation-speed) ease;
}

/* ===== AUTHENTICATION PAGES ===== */
.auth-container {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 2rem;
}

.auth-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 2rem;
  max-width: 450px;
  width: 100%;
  box-shadow: var(--glass-shadow);
}

.auth-card h1 {
  text-align: center;
  margin-bottom: 2rem;
  background: linear-gradient(90deg, var(--text), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.auth-form h2 {
  margin-bottom: 1rem;
  color: var(--text);
}

.auth-form input {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--glass-border);
  border-radius: 10px;
  background: var(--glass-bg);
  color: var(--text);
  font-size: 1rem;
  transition: all 0.3s ease;
}

.auth-form input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow);
}

.auth-form input::placeholder {
  color: var(--text-dim);
}

.auth-form button {
  width: 100%;
  padding: 0.75rem;
  border: none;
  border-radius: 10px;
  background: var(--accent);
  color: #000;
  cursor: pointer;
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.3s ease;
}

.auth-form button:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 20px var(--accent-glow);
}

.google-btn {
  background: white !important;
  color: #333 !important;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.google-btn:hover {
  background: #f0f0f0 !important;
}

.auth-form p {
  text-align: center;
  color: var(--text-dim);
  margin-top: 1rem;
}

.auth-form p a {
  color: var(--accent);
  cursor: pointer;
  text-decoration: underline;
}

.auth-message {
  margin-top: 1rem;
  padding: 0.75rem;
  border-radius: 8px;
  text-align: center;
  font-size: 0.9rem;
  display: none;
}

.auth-message.success {
  background: rgba(46, 213, 115, 0.1);
  border: 1px solid var(--success);
  color: var(--success);
  display: block;
}

.auth-message.error {
  background: rgba(255, 71, 87, 0.1);
  border: 1px solid var(--error);
  color: var(--error);
  display: block;
}

/* ===== PROFILE PAGE ===== */
.profile-container {
  max-width: 800px;
  margin: 100px auto;
  padding: 2rem;
}

.profile-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 2rem;
  box-shadow: var(--glass-shadow);
}

.profile-card h1 {
  margin-bottom: 2rem;
  background: linear-gradient(90deg, var(--text), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.avatar-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--glass-border);
}

.avatar {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--accent);
  box-shadow: 0 0 20px var(--accent-glow);
}

.avatar-section input[type="file"] {
  display: none;
}

.avatar-section button {
  padding: 0.5rem 1.5rem;
  border: none;
  border-radius: 10px;
  background: var(--accent);
  color: #000;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.3s ease;
}

.avatar-section button:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px var(--accent-glow);
}

.profile-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.profile-form label {
  color: var(--text);
  font-weight: 500;
  margin-bottom: 0.5rem;
  display: block;
}

.profile-form input,
.profile-form textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--glass-border);
  border-radius: 10px;
  background: var(--glass-bg);
  color: var(--text);
  font-size: 1rem;
  font-family: inherit;
  transition: all 0.3s ease;
}

.profile-form input:focus,
.profile-form textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow);
}

.profile-form input[readonly] {
  opacity: 0.6;
  cursor: not-allowed;
}

.profile-form textarea {
  resize: vertical;
  min-height: 100px;
}

.profile-form button {
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 10px;
  background: var(--accent);
  color: #000;
  cursor: pointer;
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.3s ease;
}

.profile-form button:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 20px var(--accent-glow);
}

/* ===== NOTES PAGE ===== */
.notes-container {
  max-width: 1200px;
  margin: 100px auto;
  padding: 2rem;
}

.notes-container h1 {
  margin-bottom: 2rem;
  background: linear-gradient(90deg, var(--text), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.search-section {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.search-section input {
  flex: 1;
  min-width: 250px;
  padding: 0.75rem 1rem;
  border: 1px solid var(--glass-border);
  border-radius: 10px;
  background: var(--glass-bg);
  color: var(--text);
  font-size: 1rem;
}

.search-section input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow);
}

.search-section button {
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 10px;
  background: var(--accent);
  color: #000;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.3s ease;
}

.search-section button:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px var(--accent-glow);
}

.create-note {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 15px;
  padding: 1.5rem;
  margin-bottom: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.create-note input,
.create-note textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--glass-border);
  border-radius: 10px;
  background: var(--glass-bg);
  color: var(--text);
  font-size: 1rem;
  font-family: inherit;
}

.create-note input:focus,
.create-note textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow);
}

.create-note textarea {
  resize: vertical;
  min-height: 100px;
}

.create-note button {
  align-self: flex-start;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 10px;
  background: var(--accent);
  color: #000;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.3s ease;
}

.create-note button:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px var(--accent-glow);
}

.note-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 15px;
  padding: 1.5rem;
  margin-bottom: 1rem;
  transition: all 0.3s ease;
}

.note-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.note-card h3 {
  color: var(--text);
  margin-bottom: 1rem;
}

.note-card p {
  color: var(--text-dim);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.note-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--glass-border);
}

.similarity {
  display: inline-block;
  background: var(--accent-glow);
  color: var(--accent);
  padding: 0.25rem 0.75rem;
  border-radius: 12px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.note-card button {
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 8px;
  background: var(--error);
  color: white;
  cursor: pointer;
  font-weight: 500;
  transition: all 0.3s ease;
}

.note-card button:hover {
  opacity: 0.8;
  transform: translateY(-1px);
}

/* ===== AUTH BUTTON IN HEADER ===== */
.auth-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  background: var(--glass-bg);
  color: var(--text);
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 0.9rem;
}

.auth-btn:hover {
  background: var(--accent-glow);
  border-color: var(--accent);
  transform: translateY(-1px);
}

.auth-btn i {
  font-size: 1rem;
}

/* ===== LOADING SCREEN ===== */
.loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-loading);
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loading-screen.hidden {
  opacity: 0;
  visibility: hidden;
}

.loading-content {
  text-align: center;
  max-width: 400px;
  padding: var(--space-lg);
}

.loading-spinner {
  width: 60px;
  height: 60px;
  border: 4px solid var(--glass-border);
  border-top: 4px solid var(--accent);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto var(--space-md);
}

.loading-content h2 {
  font-size: 1.5rem;
  margin-bottom: var(--space-sm);
  color: var(--text);
}

.loading-content p {
  color: var(--text-dim);
}

/* ===== HEADER ===== */
.fixed-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  padding: var(--space-sm) var(--space-lg);
  z-index: var(--z-controls);
  transition: all var(--animation-speed) ease;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1400px;
  margin: 0 auto;
  gap: var(--space-md);
}

.header-title {
  font-size: 1.5rem;
  font-weight: 300;
  letter-spacing: 1px;
  background: linear-gradient(90deg, var(--text), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.header-icon {
  font-size: 1.8rem;
  color: var(--accent);
  animation: pulse 2s infinite;
}

.header-controls {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
  flex-wrap: wrap;
}

/* ===== SEARCH ===== */
.search-container {
  position: relative;
  min-width: 300px;
  flex: 1;
  max-width: 400px;
}

.search-input {
  width: 100%;
  padding: 0.75rem 3rem 0.75rem 2.5rem;
  border: 1px solid var(--glass-border);
  border-radius: 25px;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  color: var(--text);
  outline: none;
  transition: all 0.3s ease;
  font-size: 0.9rem;
}

.search-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow);
  transform: scale(1.02);
}

.search-input::placeholder {
  color: var(--text-dim);
}

.search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-dim);
  transition: color 0.3s ease;
}

.search-clear {
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 50%;
  transition: all 0.3s ease;
  opacity: 0;
  visibility: hidden;
}

.search-clear.visible {
  opacity: 1;
  visibility: visible;
}

.search-clear:hover {
  color: var(--accent);
  background: var(--glass-bg);
}

.search-suggestions {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--chat-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--chat-border);
  border-radius: 15px;
  margin-top: 5px;
  max-height: 200px;
  overflow-y: auto;
  z-index: 1001;
  display: none;
}

.search-suggestions.active {
  display: block;
  animation: slideInUp 0.3s ease;
}

.suggestion-item {
  padding: 0.75rem 1rem;
  cursor: pointer;
  border-bottom: 1px solid var(--glass-border);
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.suggestion-item:last-child {
  border-bottom: none;
}

.suggestion-item:hover {
  background: var(--accent-glow);
  color: var(--text);
}

.suggestion-icon {
  color: var(--accent);
  font-size: 0.8rem;
}

/* ===== FILTERS & CONTROLS ===== */
.category-filter,
.sort-filter {
  padding: 0.75rem 1rem;
  border: 1px solid var(--glass-border);
  border-radius: 15px;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  color: var(--text);
  outline: none;
  cursor: pointer;
  min-width: 120px;
  transition: all 0.3s ease;
}

.category-filter:hover,
.sort-filter:hover {
  border-color: var(--accent);
  box-shadow: 0 0 5px var(--accent-glow);
}

.view-toggle {
  display: flex;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: 15px;
  overflow: hidden;
}

.view-btn {
  padding: 0.75rem 1rem;
  border: none;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.view-btn:hover {
  background: var(--accent-glow);
}

.view-btn.active {
  background: var(--accent);
  color: #000;
}

/* ===== THEME SELECTOR ===== */
.theme-selector {
  display: flex;
  gap: 0.5rem;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  padding: 0.5rem;
  border-radius: 20px;
  border: 1px solid var(--glass-border);
}

.theme-btn {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
}

.theme-btn:hover,
.theme-btn.active {
  transform: scale(1.1);
  border-color: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow);
}

.theme-btn.neon { background: linear-gradient(135deg, #00d9ff, #7000ff); }
.theme-btn.dark { background: linear-gradient(135deg, #00d4ff, #0a0a0f); }
.theme-btn.light { background: linear-gradient(135deg, #ff6b35, #f8f9fc); }
.theme-btn.cyberpunk { background: linear-gradient(135deg, #00ff88, #0f0f23); }
.theme-btn.ocean { background: linear-gradient(135deg, #00f5ff, #001a2e); }

/* ===== USER MENU ===== */
.user-menu {
  position: relative;
}

.user-menu-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  color: var(--text);
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.user-menu-btn:hover {
  background: var(--accent-glow);
  border-color: var(--accent);
}

.user-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  background: var(--chat-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--chat-border);
  border-radius: 12px;
  padding: 0.5rem 0;
  margin-top: 5px;
  min-width: 180px;
  box-shadow: var(--glass-shadow);
  display: none;
  z-index: 1001;
}

.user-dropdown.active {
  display: block;
  animation: slideInUp 0.3s ease;
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  color: var(--text);
  text-decoration: none;
  transition: all 0.3s ease;
  cursor: pointer;
}

.dropdown-item:hover {
  background: var(--accent-glow);
  color: var(--text);
}

.dropdown-divider {
  height: 1px;
  background: var(--glass-border);
  margin: 0.5rem 0;
}

/* ===== AI STATUS ===== */
.ai-status {
  position: fixed;
  top: 120px;
  left: 20px;
  background: var(--chat-bg);
  backdrop-filter: blur(20px);
  padding: 0.75rem 1.25rem;
  border-radius: 25px;
  border: 1px solid var(--chat-border);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  z-index: var(--z-controls);
  transition: all var(--animation-speed) ease;
  font-size: 0.9rem;
}

.ai-status.active {
  box-shadow: 0 0 20px var(--accent-glow);
  border-color: var(--accent);
}

.ai-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s infinite;
}

/* ===== MAIN CONTENT ===== */
.main-content {
  margin-top: 120px;
  padding: var(--space-lg);
  min-height: calc(100vh - 120px);
}

/* ===== INTRO SECTION ===== */
.intro-section {
  text-align: center;
  margin-bottom: var(--space-xl);
  padding: var(--space-xl) 0;
}

.intro-section h1 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 300;
  letter-spacing: 2px;
  margin-bottom: var(--space-md);
  background: linear-gradient(90deg, var(--text), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.intro-section p {
  color: var(--text-dim);
  font-size: 1.2rem;
  max-width: 800px;
  margin: 0 auto var(--space-xl);
}

.quick-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-md);
  max-width: 600px;
  margin: 0 auto;
}

.stat-item {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: 15px;
  padding: var(--space-md);
  text-align: center;
  transition: all 0.3s ease;
}

.stat-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.stat-number {
  font-size: 2rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.stat-label {
  color: var(--text-dim);
  font-size: 0.9rem;
}

/* ===== TRENDING SECTION ===== */
.trending-section {
  margin-bottom: var(--space-xl);
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--glass-border);
}

.section-header h2 {
  font-size: 1.8rem;
  font-weight: 400;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.section-header i {
  color: var(--accent);
}

.see-all-btn {
  background: var(--accent-glow);
  border: 1px solid var(--accent);
  color: var(--text);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 0.9rem;
}

.see-all-btn:hover {
  background: var(--accent);
  color: #000;
}

.trending-carousel {
  display: flex;
  gap: var(--space-md);
  overflow-x: auto;
  padding: var(--space-sm) 0;
  scroll-behavior: smooth;
}

.trending-carousel::-webkit-scrollbar {
  height: 6px;
}

.trending-carousel::-webkit-scrollbar-track {
  background: var(--glass-bg);
  border-radius: 10px;
}

.trending-carousel::-webkit-scrollbar-thumb {
  background: var(--accent-glow);
  border-radius: 10px;
}

.trending-card {
  min-width: 280px;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius);
  padding: var(--space-md);
  transition: all 0.3s ease;
  position: relative;
}

.trending-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

.trending-badge {
  position: absolute;
  top: -8px;
  right: 15px;
  background: var(--accent);
  color: #000;
  padding: 0.25rem 0.75rem;
  border-radius: 12px;
  font-size: 0.7rem;
  font-weight: 600;
}

/* ===== SEARCH RESULTS ===== */
.search-results-header {
  display: none;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 15px;
  padding: var(--space-md) var(--space-lg);
  margin: var(--space-lg) auto;
  max-width: 800px;
}

.search-results-header.active {
  display: flex;
  justify-content: space-between;
  align-items: center;
  animation: slideInUp 0.3s ease;
}

.search-results-info {
  flex: 1;
}

.search-results-actions {
  display: flex;
  gap: var(--space-sm);
}

.clear-filters-btn,
.back-to-home-btn {
  background: var(--accent-glow);
  border: 1px solid var(--accent);
  color: var(--text);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.clear-filters-btn:hover,
.back-to-home-btn:hover {
  background: var(--accent);
  color: #000;
  transform: translateY(-1px);
}

.search-filters-active {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.active-filter {
  background: var(--accent-glow);
  color: var(--text);
  padding: 0.25rem 0.75rem;
  border-radius: 15px;
  font-size: 0.8rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.filter-remove {
  cursor: pointer;
  opacity: 0.7;
  transition: opacity 0.3s ease;
}

.filter-remove:hover {
  opacity: 1;
}

/* ===== CATEGORY SECTIONS ===== */
.category-section {
  margin-bottom: var(--space-xl);
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.8s ease forwards;
}

.category-section.collapsed .gallery {
  display: none;
}

.category-header {
  display: flex;
  align-items: center;
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--glass-border);
  cursor: pointer;
  transition: all 0.3s ease;
}

.category-header:hover {
  border-bottom-color: var(--accent);
}

.category-icon {
  font-size: 2rem;
  margin-right: var(--space-md);
  color: var(--accent);
}

.category-info {
  flex: 1;
}

.category-title {
  font-size: 1.8rem;
  font-weight: 400;
  color: var(--text);
  margin-bottom: 0.25rem;
}

.category-description {
  color: var(--text-dim);
  font-size: 0.9rem;
}

.category-meta {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.category-count {
  background: var(--accent-glow);
  padding: 0.25rem 0.75rem;
  border-radius: 15px;
  font-size: 0.8rem;
  color: var(--text);
}

.category-expand {
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 50%;
  transition: all 0.3s ease;
  font-size: 1.2rem;
}

.category-expand:hover {
  background: var(--glass-bg);
  color: var(--accent);
}

.category-section.collapsed .category-expand i {
  transform: rotate(-90deg);
}

/* ===== GALLERY GRID ===== */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-lg);
  transition: all var(--animation-speed) ease;
}

.gallery.list-view {
  grid-template-columns: 1fr;
}

.gallery.list-view .card {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.gallery.list-view .card-image {
  width: 200px;
  height: 120px;
  flex-shrink: 0;
}

.gallery.list-view .card-content {
  flex: 1;
}

.gallery.compact-view {
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-md);
}

.gallery.compact-view .card {
  padding: var(--space-sm);
}

.gallery.compact-view .card-image {
  height: 140px;
}

/* ===== CARDS ===== */
.card {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius);
  padding: var(--space-md);
  box-shadow: var(--glass-shadow);
  transition: all var(--animation-speed) cubic-bezier(0.175, 0.885, 0.32, 1.275);
  position: relative;
  overflow: hidden;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.6s ease forwards;
  z-index: var(--z-gallery);
}

.card.hidden {
  display: none;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, transparent 50%);
  z-index: 1;
  pointer-events: none;
  opacity: 0;
  transition: all var(--animation-speed) ease;
}

.card:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4), 0 0 0 1px var(--accent-glow);
}

.card:hover::before {
  opacity: 1;
}

.card-image {
  position: relative;
  width: 100%;
  height: 180px;
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: var(--space-md);
  background: linear-gradient(135deg, var(--accent-glow), rgba(120, 0, 255, 0.1));
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.favorite-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  background: rgba(0, 0, 0, 0.8);
  border: none;
  border-radius: 50%;
  width: 35px;
  height: 35px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-dim);
  cursor: pointer;
  transition: all 0.3s ease;
  z-index: 3;
  backdrop-filter: blur(10px);
}

.favorite-btn:hover,
.favorite-btn.active {
  color: #ff6b6b;
  transform: scale(1.1);
  background: rgba(255, 107, 107, 0.2);
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: var(--space-sm);
  z-index: 2;
  position: relative;
}

.tag {
  padding: 0.25rem 0.75rem;
  background: var(--accent-glow);
  border-radius: 15px;
  font-size: 0.75rem;
  color: var(--text);
  font-weight: 500;
  transition: all 0.3s ease;
}

.tag:hover {
  background: var(--accent);
  color: #000;
  transform: scale(1.05);
}

.card h3 {
  font-size: 1.4rem;
  margin-bottom: 0.5rem;
  font-weight: 500;
  position: relative;
  z-index: 2;
  color: var(--text);
}

.card p {
  color: var(--text-dim);
  font-size: 0.9rem;
  margin-bottom: var(--space-md);
  line-height: 1.6;
  position: relative;
  z-index: 2;
}

.card-stats {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--space-md);
  font-size: 0.8rem;
  color: var(--text-dim);
  position: relative;
  z-index: 2;
}

.stat {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.stat i {
  color: var(--accent);
}

.card-rating {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin-bottom: var(--space-sm);
}

.stars {
  display: flex;
  gap: 0.125rem;
}

.star {
  color: #ffd700;
  font-size: 0.8rem;
}

.star.empty {
  color: var(--text-dim);
}

.rating-text {
  color: var(--text-dim);
  font-size: 0.8rem;
  margin-left: 0.5rem;
}

.links {
  display: flex;
  gap: var(--space-sm);
  position: relative;
  z-index: 2;
}

.links a,
.download-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  border-radius: 10px;
  text-decoration: none;
  color: var(--text);
  font-weight: 500;
  font-size: 0.9rem;
  transition: all 0.3s ease;
  background: var(--accent-glow);
  border: 1px solid rgba(0, 217, 255, 0.3);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.links a::before,
.download-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s ease;
}

.links a:hover,
.download-btn:hover {
  background: var(--accent);
  color: #000;
  box-shadow: 0 0 15px var(--accent-glow);
  transform: translateY(-2px);
}

.links a:hover::before,
.download-btn:hover::before {
  left: 100%;
}

/* ===== PLATFORM SELECTOR ===== */
.platform-selector {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--chat-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--chat-border);
  border-radius: 12px;
  padding: 15px;
  margin-top: 5px;
  z-index: 1000;
  box-shadow: var(--glass-shadow);
}

.platform-selector.active {
  display: block;
  animation: slideInUp 0.3s ease;
}

.platform-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  margin-bottom: 12px;
}

.platform-option {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border: 1px solid var(--chat-border);
  border-radius: 8px;
  background: var(--glass-bg);
  color: var(--text);
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 0.8rem;
}

.platform-option:hover {
  background: var(--accent-glow);
  border-color: var(--accent);
  transform: translateY(-1px);
}

.platform-option.selected {
  background: var(--accent);
  color: #000;
  font-weight: 500;
}

.platform-option i {
  font-size: 1rem;
}

.auto-detect-info {
  font-size: 0.7rem;
  color: var(--text-dim);
  text-align: center;
  padding: 6px;
  border-top: 1px solid var(--chat-border);
}

/* ===== CHAT INTERFACE ===== */
.chat-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: var(--z-chat);
}

.chat-toggle {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #7000ff);
  border: none;
  color: white;
  font-size: 1.5rem;
  cursor: pointer;
  box-shadow: 0 4px 20px var(--accent-glow);
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.chat-toggle:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 30px var(--accent-glow);
}

.chat-notification {
  position: absolute;
  top: -5px;
  right: -5px;
  width: 20px;
  height: 20px;
  background: var(--error);
  border-radius: 50%;
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  color: white;
  animation: pulse 2s infinite;
  font-weight: 600;
}

.chat-notification.visible {
  display: flex;
}

.chat-window {
  position: absolute;
  bottom: 80px;
  right: 0;
  width: 380px;
  height: 550px;
  background: var(--chat-bg);
  backdrop-filter: blur(30px);
  border: 1px solid var(--chat-border);
  border-radius: 20px;
  display: none;
  flex-direction: column;
  box-shadow: 
    0 20px 40px rgba(0, 0, 0, 0.4),
    0 0 0 1px var(--accent-glow);
  overflow: hidden;
}

.chat-window.active {
  display: flex;
  animation: slideInUp 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.chat-header {
  padding: 20px;
  border-bottom: 1px solid var(--chat-border);
  display: flex;
  align-items: center;
  gap: 15px;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
}

.chat-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #7000ff);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.2rem;
  position: relative;
  overflow: hidden;
}

.chat-avatar::before {
  content: '🤖';
  font-size: 1.4rem;
}

.ai-speaking {
  animation: speakPulse 1.5s infinite;
}

.chat-status {
  flex: 1;
}

.chat-status h4 {
  margin: 0;
  color: var(--text);
  font-size: 1rem;
}

.chat-status p {
  margin: 0;
  font-size: 0.8rem;
  color: var(--text-dim);
}

.chat-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

.chat-action-btn {
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  padding: 6px;
  border-radius: 6px;
  transition: all 0.3s ease;
  font-size: 0.9rem;
}

.chat-action-btn:hover {
  color: var(--accent);
  background: var(--glass-bg);
}

/* ===== LANGUAGE SELECTOR ===== */
.language-selector {
  position: relative;
}

.language-btn {
  padding: 6px 10px;
  border: 1px solid var(--chat-border);
  border-radius: 15px;
  background: var(--glass-bg);
  color: var(--text);
  cursor: pointer;
  font-size: 0.8rem;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: all 0.3s ease;
}

.language-btn:hover {
  background: var(--accent-glow);
  border-color: var(--accent);
}

.language-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  background: var(--chat-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--chat-border);
  border-radius: 12px;
  padding: 8px;
  margin-top: 5px;
  min-width: 140px;
  display: none;
  z-index: 1001;
}

.language-dropdown.active {
  display: block;
  animation: slideInUp 0.3s ease;
}

.language-option {
  padding: 8px 10px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 0.8rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.language-option:hover {
  background: var(--accent-glow);
}

.language-option.selected {
  background: var(--accent);
  color: #000;
  font-weight: 500;
}

/* ===== AUDIO CONTROLS ===== */
.audio-controls {
  display: flex;
  gap: 6px;
}

.audio-btn {
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 50%;
  background: var(--glass-bg);
  border: 1px solid var(--chat-border);
  color: var(--text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  font-size: 0.8rem;
}

.audio-btn:hover {
  background: var(--accent-glow);
  border-color: var(--accent);
  transform: scale(1.05);
}

.audio-btn.active {
  background: var(--accent);
  color: #000;
}

.audio-btn.recording {
  animation: pulse 1.5s infinite;
  background: var(--error);
  border-color: var(--error);
  color: white;
}

/* ===== CHAT MESSAGES ===== */
.chat-messages {
  flex: 1;
  padding: 20px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 15px;
  scroll-behavior: smooth;
}

.chat-messages::-webkit-scrollbar {
  width: 6px;
}

.chat-messages::-webkit-scrollbar-track {
  background: transparent;
}

.chat-messages::-webkit-scrollbar-thumb {
  background: var(--accent-glow);
  border-radius: 10px;
}

.message {
  max-width: 85%;
  padding: 12px 16px;
  border-radius: 18px;
  word-wrap: break-word;
  animation: slideIn 0.3s ease;
  line-height: 1.4;
  position: relative;
}

.message.user {
  align-self: flex-end;
  background: linear-gradient(135deg, var(--accent), #0066cc);
  color: white;
  border-bottom-right-radius: 6px;
}

.message.ai {
  align-self: flex-start;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text);
  border-bottom-left-radius: 6px;
  backdrop-filter: blur(10px);
}

.message-time {
  font-size: 0.7rem;
  opacity: 0.6;
  margin-top: 8px;
  text-align: right;
}

.message.ai .message-time {
  text-align: left;
}

.typing-indicator {
  display: none;
  padding: 12px 16px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 18px;
  align-self: flex-start;
  max-width: 80px;
  backdrop-filter: blur(10px);
}

.typing-indicator.visible {
  display: block;
}

.typing-dots {
  display: flex;
  gap: 4px;
  justify-content: center;
}

.typing-dots span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  animation: typing 1.4s infinite;
}

.typing-dots span:nth-child(2) { 
  animation-delay: 0.2s; 
}

.typing-dots span:nth-child(3) { 
  animation-delay: 0.4s; 
}

/* ===== CHAT INPUT ===== */
.chat-input-container {
  padding: 20px;
  border-top: 1px solid var(--chat-border);
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
}

.quick-actions {
  display: flex;
  gap: 6px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.quick-action {
  padding: 4px 8px;
  background: var(--glass-bg);
  border: 1px solid var(--chat-border);
  border-radius: 12px;
  font-size: 0.7rem;
  color: var(--text-dim);
  cursor: pointer;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

.quick-action:hover {
  background: var(--accent-glow);
  color: var(--text);
  border-color: var(--accent);
  transform: translateY(-1px);
}

.chat-input {
  display: flex;
  gap: 12px;
  align-items: flex-end;
}

.input-wrapper {
  flex: 1;
  position: relative;
}

.chat-input textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--chat-border);
  border-radius: 20px;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  color: var(--text);
  outline: none;
  transition: all 0.3s ease;
  resize: none;
  min-height: 44px;
  max-height: 120px;
  font-family: inherit;
}

.chat-input textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow);
}

.chat-input textarea::placeholder {
  color: var(--text-dim);
}

.send-btn {
  padding: 12px;
  border: none;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #0066cc);
  color: white;
  cursor: pointer;
  transition: all 0.3s ease;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
}

.send-btn:hover:not(:disabled) {
  transform: scale(1.1);
  box-shadow: 0 0 15px var(--accent-glow);
}

.send-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ===== MODALS ===== */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(10px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal);
}

.modal.active {
  display: flex;
  animation: fadeIn 0.3s ease;
}

.modal-content {
  background: var(--chat-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--chat-border);
  border-radius: 20px;
  max-width: 600px;
  width: 90%;
  max-height: 80vh;
  overflow: hidden;
  box-shadow: var(--glass-shadow);
}

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

.modal-header h2 {
  margin: 0;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 1.5rem;
  padding: 0.5rem;
  border-radius: 50%;
  transition: all 0.3s ease;
}

.modal-close:hover {
  color: var(--accent);
  background: var(--glass-bg);
}

.modal-body {
  padding: var(--space-lg);
  overflow-y: auto;
  max-height: 60vh;
}

/* ===== TOAST NOTIFICATIONS ===== */
.toast-container {
  position: fixed;
  top: 140px;
  right: 20px;
  z-index: var(--z-toast);
  pointer-events: none;
}

.toast {
  background: var(--chat-bg);
  backdrop-filter: blur(20px);
  color: var(--text);
  padding: 16px 20px;
  border-radius: 12px;
  border: 1px solid var(--chat-border);
  margin-bottom: 10px;
  box-shadow: var(--glass-shadow);
  transform: translateX(100%);
  opacity: 0;
  animation: slideInRight 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 350px;
  min-width: 250px;
}

.toast.success { 
  border-left: 4px solid var(--success);
}

.toast.error { 
  border-left: 4px solid var(--error);
}

.toast.info { 
  border-left: 4px solid var(--info);
}

.toast.warning { 
  border-left: 4px solid var(--warning);
}

.toast-icon {
  font-size: 1.2rem;
  flex-shrink: 0;
}

.toast.success .toast-icon {
  color: var(--success);
}

.toast.error .toast-icon {
  color: var(--error);
}

.toast.info .toast-icon {
  color: var(--info);
}

.toast.warning .toast-icon {
  color: var(--warning);
}

.toast-content {
  flex: 1;
}

.toast-title {
  font-weight: 600;
  margin-bottom: 4px;
  font-size: 0.9rem;
}

.toast-message {
  font-size: 0.8rem;
  opacity: 0.8;
  line-height: 1.4;
}

.toast-close {
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  transition: all 0.3s ease;
  flex-shrink: 0;
}

.toast-close:hover {
  color: var(--text);
  background: var(--glass-bg);
}

/* ===== ANIMATIONS ===== */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

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

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(100%);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

@keyframes pulse {
  0%, 100% { 
    opacity: 1; 
    transform: scale(1); 
  }
  50% { 
    opacity: 0.7; 
    transform: scale(1.2); 
  }
}

@keyframes typing {
  0%, 60%, 100% { 
    transform: translateY(0); 
  }
  30% { 
    transform: translateY(-10px); 
  }
}

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

@keyframes speakPulse {
  0%, 100% { 
    box-shadow: 0 0 0 0 var(--accent-glow);
  }
  50% { 
    box-shadow: 0 0 0 8px transparent;
  }
}

/* ===== STAGGERED ANIMATIONS ===== */
.card:nth-child(1) { animation-delay: 0.1s; }
.card:nth-child(2) { animation-delay: 0.15s; }
.card:nth-child(3) { animation-delay: 0.2s; }
.card:nth-child(4) { animation-delay: 0.25s; }
.card:nth-child(5) { animation-delay: 0.3s; }
.card:nth-child(6) { animation-delay: 0.35s; }

.category-section:nth-child(1) { animation-delay: 0.2s; }
.category-section:nth-child(2) { animation-delay: 0.4s; }
.category-section:nth-child(3) { animation-delay: 0.6s; }
.category-section:nth-child(4) { animation-delay: 0.8s; }
.category-section:nth-child(5) { animation-delay: 1s; }
.category-section:nth-child(6) { animation-delay: 1.2s; }

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1200px) {
  .header-content {
    gap: var(--space-sm);
  }
  
  .search-container {
    min-width: 250px;
  }
  
  .gallery {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  }
}

@media (max-width: 992px) {
  .fixed-header {
    padding: var(--space-sm);
  }

  .header-content {
    flex-direction: column;
    gap: var(--space-sm);
  }

  .header-controls {
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
  }

  .search-container {
    order: -1;
    width: 100%;
    max-width: none;
  }

  .main-content {
    margin-top: 180px;
    padding: var(--space-md);
  }

  .ai-status {
    position: static;
    margin: var(--space-sm) auto;
    justify-content: center;
    width: fit-content;
  }
}

@media (max-width: 768px) {
  .gallery {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .intro-section h1 {
    font-size: 2rem;
  }

  .intro-section p {
    font-size: 1rem;
  }

  .category-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
  }

  .category-meta {
    align-self: flex-end;
  }

  .chat-window {
    width: calc(100vw - 20px);
    height: calc(100vh - 100px);
    bottom: 10px;
    right: 10px;
    left: 10px;
  }

  .modal-content {
    width: 95%;
    margin: var(--space-sm);
  }

  .quick-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .trending-carousel {
    gap: var(--space-sm);
  }

  .trending-card {
    min-width: 250px;
  }

  .search-results-header {
    flex-direction: column;
    gap: var(--space-sm);
    text-align: center;
  }

  .search-results-actions {
    justify-content: center;
  }

  .auth-card {
    padding: 1.5rem;
  }

  .profile-container,
  .notes-container {
    margin-top: 80px;
    padding: 1rem;
  }
}

@media (max-width: 480px) {
  .header-title {
    font-size: 1.2rem;
  }

  .category-title {
    font-size: 1.4rem;
  }

  .card h3 {
    font-size: 1.2rem;
  }

  .card p {
    font-size: 0.85rem;
  }

  .theme-btn {
    width: 25px;
    height: 25px;
  }

  .chat-toggle {
    width: 50px;
    height: 50px;
    font-size: 1.2rem;
  }

  .quick-actions {
    justify-content: center;
  }

  .quick-action {
    font-size: 0.65rem;
    padding: 3px 6px;
  }
}

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

@media (prefers-contrast: high) {
  :root {
    --glass-bg: rgba(0, 0, 0, 0.9);
    --glass-border: rgba(255, 255, 255, 0.5);
    --text-dim: #cccccc;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --primary: #0a0a0f;
    --secondary: #1a1a25;
  }
}

/* ===== FOCUS INDICATORS ===== */
button:focus,
input:focus,
select:focus,
textarea:focus,
.theme-btn:focus,
.card:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.card:focus {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4), 0 0 0 2px var(--accent);
}

/* ===== UTILITIES ===== */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

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

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--space-xs); }
.mb-2 { margin-bottom: var(--space-sm); }
.mb-3 { margin-bottom: var(--space-md); }
.mb-4 { margin-bottom: var(--space-lg); }

.hidden { display: none !important; }
.visible { display: block !important; }

/* ===== PRINT STYLES ===== */
@media print {
  .fixed-header,
  .ai-status,
  .chat-container,
  .toast-container {
    display: none !important;
  }
  
  .main-content {
    margin-top: 0;
  }
  
  .card {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #ccc;
  }
}