/* ============================================
   PRESSURE WIKI - PREMIUM DESIGN SYSTEM
   Deep Ocean / Survival Horror Theme
   ============================================ */

/* ========== CSS VARIABLES ========== */
:root {
  /* Colors - Ocean Abyss Accent */
  --primary-gold: #F59E0B;
  --primary-teal: #06B6D4;
  --primary-purple: #8B5CF6;
  --primary-blue: #3B82F6;
  --crimson: #EF4444;
  --gold: #FFD700;
  --success-green: #10B981;
  --orange: #FF9F1C;
  --warning-red: #DC2626;

  /* Gradient Colors */
  --gradient-primary: linear-gradient(135deg, #06B6D4 0%, #EF4444 100%);
  --gradient-secondary: linear-gradient(135deg, #06B6D4 0%, #F59E0B 100%);
  --gradient-accent: linear-gradient(135deg, #06B6D4 0%, #8B5CF6 50%, #EF4444 100%);
  --gradient-dark: linear-gradient(135deg, #040810 0%, #0a1628 50%, #0d0820 100%);
  --gradient-card: linear-gradient(135deg, rgba(6, 182, 212, 0.1) 0%, rgba(239, 68, 68, 0.1) 100%);

  /* Dark Theme Background */
  --bg-primary: #040810;
  --bg-secondary: #081020;
  --bg-tertiary: #0c1830;
  --bg-hover: #122040;

  /* Glass Effect */
  --glass-bg: rgba(8, 16, 32, 0.75);
  --glass-border: rgba(6, 182, 212, 0.25);

  /* Text Colors */
  --text-primary: #ffffff;
  --text-secondary: #94a3b8;
  --text-muted: #5a7290;

  /* Shadows & Effects */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.5);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.6);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.7);
  --shadow-glow: 0 0 20px rgba(6, 182, 212, 0.4);
  --shadow-glow-red: 0 0 20px rgba(239, 68, 68, 0.5);
  --shadow-glow-purple: 0 0 20px rgba(139, 92, 246, 0.4);
  --shadow-glow-teal: 0 0 20px rgba(6, 182, 212, 0.5);

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* 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;

  /* Typography */
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* Z-Index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
}

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

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

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

@media (max-width: 768px) {
  body {
    background-attachment: scroll;
  }
  .card {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
}

/* ========== CUSTOM SCROLLBAR ========== */
::-webkit-scrollbar {
  width: 12px;
  height: 12px;
}
::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--primary-teal), var(--crimson));
  border-radius: 6px;
  border: 2px solid var(--bg-secondary);
}
::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, #22d3ee, #f87171);
}

/* ========== TYPOGRAPHY ========== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #ffffff 0%, #06B6D4 50%, #EF4444 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 20px rgba(6, 182, 212, 0.3));
}

h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
}

h3 {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  font-weight: 700;
}

h4 {
  font-size: clamp(1.1rem, 2.5vw, 1.35rem);
  font-weight: 600;
}

h5 {
  font-size: 1.125rem;
  font-weight: 600;
}

h6 {
  font-size: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--text-secondary);
}

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

a:hover {
  color: #22d3ee;
  text-shadow: 0 0 8px rgba(6, 182, 212, 0.4);
}

/* ========== LAYOUT UTILITIES ========== */
.container {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.container-narrow {
  max-width: 900px;
}

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

.section-sm {
  padding: var(--spacing-2xl) 0;
}

/* ========== NAVIGATION ========== */
.navbar {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  padding: var(--spacing-md) 0;
  transition: all var(--transition-base);
}

.navbar-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-lg);
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 900;
  color: var(--text-primary);
  text-decoration: none;
  transition: transform var(--transition-base);
}

.navbar-brand:hover {
  transform: scale(1.05);
  color: var(--text-primary);
}

.navbar-logo {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--primary-teal), var(--crimson));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  box-shadow: 0 0 10px rgba(6, 182, 212, 0.4);
}

.navbar-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-sm);
  align-items: center;
}

.navbar-link {
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--text-secondary);
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  position: relative;
}

.navbar-link:hover,
.navbar-link.active {
  color: var(--text-primary);
  background: rgba(6, 182, 212, 0.1);
}

.navbar-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--gradient-accent);
  transition: all var(--transition-base);
  transform: translateX(-50%);
}

.navbar-link:hover::after,
.navbar-link.active::after {
  width: 80%;
}

/* Dropdown Menu */
.navbar-item {
  position: relative;
}

.navbar-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  width: 220px;
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-sm);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-base);
  z-index: var(--z-dropdown);
}

.navbar-item:hover .navbar-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-link {
  display: block;
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--text-secondary);
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.dropdown-link:hover,
.dropdown-link.active {
  background: rgba(6, 182, 212, 0.1);
  color: var(--text-primary);
  transform: translateX(4px);
}

/* Mobile Dropdown */
@media (max-width: 768px) {
  .navbar-item {
    width: 100%;
  }
  .navbar-dropdown {
    position: static;
    width: 100%;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    background: transparent;
    padding-left: var(--spacing-lg);
    display: none;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }
  .navbar-item.dropdown-active .navbar-dropdown {
    display: block;
    max-height: 500px;
  }
}

/* Mobile Menu Toggle */
.navbar-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: var(--spacing-sm);
}

@media (max-width: 768px) {
  .navbar-toggle {
    display: block;
  }
  .navbar-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--glass-border);
    flex-direction: column;
    padding: var(--spacing-md);
    gap: var(--spacing-xs);
  }
  .navbar-menu.active {
    display: flex;
  }
}

/* ========== BUTTONS ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-accent);
  color: var(--text-primary);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
  color: var(--text-primary);
}

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

.btn-secondary:hover {
  background: var(--bg-hover);
  border-color: var(--primary-teal);
  color: var(--text-primary);
}

.btn-outline {
  background: transparent;
  color: var(--primary-teal);
  border: 2px solid var(--primary-teal);
}

.btn-outline:hover {
  background: var(--primary-teal);
  color: #000;
}

.btn-danger {
  background: linear-gradient(135deg, #EF4444, #DC2626);
  color: var(--text-primary);
}

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

.btn-sm {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: 0.875rem;
}

.btn-lg {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: 1.125rem;
}

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--radius-sm);
}

/* ========== CARDS ========== */
.card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-sm);
}

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

.card-header {
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--glass-border);
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
}

.card-subtitle {
  color: var(--text-muted);
  font-size: 0.875rem;
}

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

.card-footer {
  margin-top: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Card with Gradient Border */
.card-gradient {
  position: relative;
  background: var(--bg-secondary);
}

.card-gradient::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  padding: 2px;
  background: var(--gradient-accent);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

/* ========== GRID SYSTEM ========== */
.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* ========== BADGES ========== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

.badge-primary { background: rgba(6, 182, 212, 0.2); color: var(--primary-teal); border: 1px solid var(--primary-teal); }
.badge-success { background: rgba(16, 185, 129, 0.2); color: var(--success-green); border: 1px solid var(--success-green); }
.badge-warning { background: rgba(245, 158, 11, 0.2); color: var(--orange); border: 1px solid var(--orange); }
.badge-danger { background: rgba(239, 68, 68, 0.2); color: var(--crimson); border: 1px solid var(--crimson); }
.badge-purple { background: rgba(139, 92, 246, 0.2); color: var(--primary-purple); border: 1px solid var(--primary-purple); }
.badge-blue { background: rgba(59, 130, 246, 0.2); color: var(--primary-blue); border: 1px solid var(--primary-blue); }

/* Entity Threat Badges */
.badge-lethal { background: rgba(239, 68, 68, 0.25); color: #fca5a5; border: 1px solid #EF4444; text-shadow: 0 0 6px rgba(239,68,68,0.4); }
.badge-high { background: rgba(245, 158, 11, 0.2); color: #fde68a; border: 1px solid #F59E0B; }
.badge-moderate { background: rgba(6, 182, 212, 0.2); color: #67e8f9; border: 1px solid #06B6D4; }
.badge-low { background: rgba(156,163,175,0.2); color: #9CA3AF; border: 1px solid #9CA3AF; }
.badge-node { background: rgba(139, 92, 246, 0.2); color: #c4b5fd; border: 1px solid #8B5CF6; }
.badge-ambient { background: rgba(16, 185, 129, 0.2); color: #6ee7b7; border: 1px solid #10B981; }
.badge-boss { background: linear-gradient(135deg, rgba(239,68,68,0.3), rgba(139,92,246,0.3)); color: #f0abfc; border: 1px solid #D946EF; text-shadow: 0 0 8px rgba(217,70,239,0.5); }

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

.form-label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
  color: var(--text-primary);
}

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

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary-teal);
  box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.2);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

/* ========== TABLES ========== */
.table-container {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
}

.table {
  width: 100%;
  border-collapse: collapse;
}

.table thead {
  background: rgba(6, 182, 212, 0.1);
}

.table th {
  padding: var(--spacing-md);
  text-align: left;
  font-weight: 600;
  color: var(--text-primary);
  border-bottom: 2px solid var(--glass-border);
  white-space: nowrap;
}

.table td {
  padding: var(--spacing-md);
  color: var(--text-secondary);
  border-bottom: 1px solid rgba(6, 182, 212, 0.1);
}

.table tbody tr {
  transition: background-color var(--transition-fast);
}

.table tbody tr:hover {
  background: rgba(6, 182, 212, 0.05);
}

.table tbody tr:last-child td {
  border-bottom: none;
}

/* ========== ANIMATIONS ========== */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

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

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

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

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

@keyframes glow {
  0%, 100% { box-shadow: 0 0 20px rgba(6, 182, 212, 0.4); }
  50% { box-shadow: 0 0 30px rgba(6, 182, 212, 0.6); }
}

@keyframes glowRed {
  0%, 100% { box-shadow: 0 0 20px rgba(239, 68, 68, 0.4); }
  50% { box-shadow: 0 0 30px rgba(239, 68, 68, 0.6); }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
}

@keyframes depthPulse {
  0%, 100% { text-shadow: 0 0 10px rgba(6,182,212,0.3); }
  50% { text-shadow: 0 0 25px rgba(6,182,212,0.6), 0 0 50px rgba(239,68,68,0.2); }
}

@keyframes flicker {
  0%, 100% { opacity: 1; }
  10% { opacity: 0.6; }
  20% { opacity: 1; }
  30% { opacity: 0.8; }
  40% { opacity: 1; }
  90% { opacity: 1; }
  92% { opacity: 0.4; }
  94% { opacity: 1; }
}

.fade-in { animation: fadeIn 0.6s ease-out; }
.fade-in-up { animation: fadeInUp 0.6s ease-out; }
.slide-in-right { animation: slideInRight 0.6s ease-out; }
.float-animation { animation: float 3s ease-in-out infinite; }
.flicker-animation { animation: flicker 4s ease-in-out infinite; }

/* ========== UTILITY CLASSES ========== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.text-primary { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }
.text-teal { color: var(--primary-teal); }
.text-red { color: var(--crimson); }
.text-gold { color: var(--primary-gold); }
.text-purple { color: var(--primary-purple); }

.flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.w-full { width: 100%; }

/* ========== PRESSURE-SPECIFIC STYLES ========== */

/* Entity threat icon */
.entity-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, rgba(239,68,68,0.3), rgba(6,182,212,0.3));
  border-radius: var(--radius-sm);
  font-size: 1.5rem;
  box-shadow: 0 0 15px rgba(239, 68, 68, 0.3);
}

/* Threat glow states */
.threat-glow-lethal { box-shadow: 0 0 20px rgba(239,68,68,0.5); animation: glowRed 2s ease-in-out infinite; }
.threat-glow-high { box-shadow: 0 0 15px rgba(245,158,11,0.4); }
.threat-glow-moderate { box-shadow: 0 0 10px rgba(6,182,212,0.3); }
.threat-glow-ambient { box-shadow: 0 0 10px rgba(16,185,129,0.3); }

/* Progress Bar */
.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--bg-tertiary);
  border-radius: 4px;
  overflow: hidden;
}

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

/* Code Display */
.code-display {
  background: rgba(6, 182, 212, 0.2);
  padding: 4px 8px;
  border-radius: 4px;
  font-family: 'Courier New', monospace;
  font-weight: 600;
  color: var(--primary-teal);
}

/* Tooltip */
.tooltip {
  position: relative;
  cursor: help;
}

.tooltip::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-secondary);
  color: var(--text-primary);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  z-index: var(--z-tooltip);
  border: 1px solid var(--glass-border);
}

.tooltip:hover::after {
  opacity: 1;
  visibility: visible;
}

/* Stats Display */
.stat-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid rgba(6, 182, 212, 0.1);
}

.stat-row:last-child { border-bottom: none; }
.stat-label { color: var(--text-muted); font-size: 0.875rem; }
.stat-value { color: var(--text-primary); font-weight: 600; }

/* Filter Buttons */
.filter-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.filter-btn {
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--bg-tertiary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
  background: rgba(6, 182, 212, 0.2);
  border-color: var(--primary-teal);
  color: var(--primary-teal);
}

/* Hero Icon Effect */
.hero-block {
  font-size: 4rem;
  animation: float 3s ease-in-out infinite;
  filter: drop-shadow(0 0 20px rgba(6, 182, 212, 0.5));
}

/* Accordion */
.accordion-item {
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-sm);
  overflow: hidden;
}

.accordion-header {
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--bg-secondary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  transition: background var(--transition-fast);
}

.accordion-header:hover { background: var(--bg-hover); }

.accordion-header::after {
  content: '▸';
  transition: transform var(--transition-base);
}

.accordion-item.active .accordion-header::after {
  transform: rotate(90deg);
}

.accordion-body {
  padding: 0 var(--spacing-lg);
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}

.accordion-item.active .accordion-body {
  padding: var(--spacing-md) var(--spacing-lg);
  max-height: 5000px;
}

/* Step Timeline */
.timeline {
  position: relative;
  padding-left: 2rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0.75rem;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--gradient-primary);
}

.timeline-step {
  position: relative;
  padding-bottom: var(--spacing-xl);
}

.timeline-step::before {
  content: '';
  position: absolute;
  left: -1.65rem;
  top: 0.3rem;
  width: 12px;
  height: 12px;
  background: var(--primary-teal);
  border-radius: 50%;
  box-shadow: 0 0 10px rgba(6, 182, 212, 0.4);
}

.timeline-step:last-child { padding-bottom: 0; }

/* Copy feedback */
.copy-code { transition: all var(--transition-fast); }
.copy-code:active { transform: scale(0.95); }

/* Warning callout */
.callout-warning {
  background: rgba(239, 68, 68, 0.08);
  border-left: 3px solid var(--crimson);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: var(--spacing-md) var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.callout-warning strong { color: #fca5a5; }

.callout-info {
  background: rgba(6, 182, 212, 0.08);
  border-left: 3px solid var(--primary-teal);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: var(--spacing-md) var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.callout-info strong { color: #67e8f9; }

/* SEO content area */
.seo-content h2 { margin-top: var(--spacing-xl); font-size: 1.5rem; margin-bottom: var(--spacing-md); color: var(--text-primary); }
.seo-content p { color: var(--text-secondary); line-height: 1.7; margin-bottom: var(--spacing-md); }
.seo-content ul, .seo-content ol { color: var(--text-secondary); margin-bottom: var(--spacing-lg); padding-left: 20px; }
.seo-content li { margin-bottom: 8px; line-height: 1.6; }

/* Tool-specific styles */
.tool-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: var(--spacing-xl);
  transition: border-color 0.3s, box-shadow 0.3s, transform 0.3s;
  position: relative;
  overflow: hidden;
}
.tool-card::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.3s;
  border-radius: inherit;
  pointer-events: none;
}
.tool-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.4);
}

.tool-card.tool-teal { border-color: rgba(6,182,212,0.35); }
.tool-card.tool-teal::before { background: radial-gradient(ellipse at top left, rgba(6,182,212,0.08), transparent 70%); opacity: 1; }
.tool-card.tool-teal:hover { border-color: rgba(6,182,212,0.65); }

.tool-card.tool-red { border-color: rgba(239,68,68,0.35); }
.tool-card.tool-red::before { background: radial-gradient(ellipse at top left, rgba(239,68,68,0.08), transparent 70%); opacity: 1; }
.tool-card.tool-red:hover { border-color: rgba(239,68,68,0.65); }

.tool-card.tool-purple { border-color: rgba(139,92,246,0.35); }
.tool-card.tool-purple::before { background: radial-gradient(ellipse at top left, rgba(139,92,246,0.08), transparent 70%); opacity: 1; }
.tool-card.tool-purple:hover { border-color: rgba(139,92,246,0.65); }

.tool-card.tool-gold { border-color: rgba(234,179,8,0.35); }
.tool-card.tool-gold::before { background: radial-gradient(ellipse at top left, rgba(234,179,8,0.08), transparent 70%); opacity: 1; }
.tool-card.tool-gold:hover { border-color: rgba(234,179,8,0.65); }

.tool-card.tool-blue { border-color: rgba(59,130,246,0.35); }
.tool-card.tool-blue::before { background: radial-gradient(ellipse at top left, rgba(59,130,246,0.08), transparent 70%); opacity: 1; }
.tool-card.tool-blue:hover { border-color: rgba(59,130,246,0.65); }

.tool-icon { font-size: 2.5rem; margin-bottom: var(--spacing-md); display: block; }
.tool-title { font-family: var(--font-heading); font-size: 1.4rem; font-weight: 700; margin-bottom: var(--spacing-sm); color: var(--text-primary); }
.tool-desc { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.6; margin-bottom: var(--spacing-lg); }

.tool-form { display: flex; flex-direction: column; gap: var(--spacing-md); }
.tool-input-group { display: flex; flex-direction: column; gap: 6px; }
.tool-label { font-size: 0.82rem; font-weight: 600; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.06em; }
.tool-input, .tool-select {
  width: 100%;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 10px 14px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  box-sizing: border-box;
}
.tool-input:focus, .tool-select:focus {
  border-color: var(--primary-teal);
  box-shadow: 0 0 0 3px rgba(6,182,212,0.15);
}
.tool-select option { background: var(--bg-secondary); }

.tool-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border: none;
  border-radius: 8px;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
  width: 100%;
  text-decoration: none;
  color: #0a0f1a;
}
.tool-btn-teal { background: var(--primary-teal); color: #0a0f1a; }
.tool-btn-teal:hover { background: #22d3ee; box-shadow: 0 4px 16px rgba(6,182,212,0.4); color: #0a0f1a; }
.tool-btn-red { background: #EF4444; color: #fff; }
.tool-btn-red:hover { background: #DC2626; box-shadow: 0 4px 16px rgba(239,68,68,0.4); }
.tool-btn-purple { background: #8b5cf6; color: #fff; }
.tool-btn-purple:hover { background: #7c3aed; box-shadow: 0 4px 16px rgba(139,92,246,0.4); }
.tool-btn-gold { background: #eab308; color: #0a0f1a; }
.tool-btn-gold:hover { background: #ca8a04; box-shadow: 0 4px 16px rgba(234,179,8,0.4); }
.tool-btn-blue { background: #3b82f6; color: #fff; }
.tool-btn-blue:hover { background: #2563eb; box-shadow: 0 4px 16px rgba(59,130,246,0.4); }

.tool-result {
  margin-top: var(--spacing-md);
  padding: var(--spacing-md);
  border-radius: 10px;
  font-size: 0.9rem;
  line-height: 1.65;
  display: none;
  animation: fadeSlideIn 0.35s ease;
}
@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
.tool-result.visible { display: block; }

.result-teal { background: rgba(6,182,212,0.12); border: 1px solid rgba(6,182,212,0.3); color: #67e8f9; }
.result-red { background: rgba(239,68,68,0.12); border: 1px solid rgba(239,68,68,0.3); color: #fca5a5; }
.result-purple { background: rgba(139,92,246,0.12); border: 1px solid rgba(139,92,246,0.3); color: #c4b5fd; }
.result-gold { background: rgba(234,179,8,0.12); border: 1px solid rgba(234,179,8,0.3); color: #fde68a; }
.result-blue { background: rgba(59,130,246,0.12); border: 1px solid rgba(59,130,246,0.3); color: #93c5fd; }
.result-green { background: rgba(16,185,129,0.12); border: 1px solid rgba(16,185,129,0.3); color: #6ee7b7; }

.result-value { font-size: 1.7rem; font-family: var(--font-heading); font-weight: 800; display: block; margin-bottom: 4px; }
.result-label { font-size: 0.8rem; opacity: 0.8; }
.result-row { display: flex; justify-content: space-between; align-items: center; padding: 6px 0; border-bottom: 1px solid rgba(255,255,255,0.06); }
.result-row:last-child { border-bottom: none; }
.result-key { opacity: 0.75; }
.result-val { font-weight: 600; }

.section-label {
  font-family: var(--font-heading);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--primary-teal);
  margin-bottom: var(--spacing-sm);
}

/* Breadcrumb */
.breadcrumb {
  font-size: 0.85rem;
  color: var(--text-muted);
  padding: var(--spacing-md) 0 0;
}
.breadcrumb a {
  color: var(--primary-teal);
  text-decoration: none;
}
.breadcrumb a:hover { text-decoration: underline; }

/* Range input */
input[type=range] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: rgba(255,255,255,0.1);
  outline: none;
}
input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--primary-teal);
  cursor: pointer;
  box-shadow: 0 0 6px rgba(6,182,212,0.5);
}

/* Checkbox / toggle for modifier tool */
.modifier-check {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: 0.9rem;
}
.modifier-check:hover {
  background: rgba(6,182,212,0.08);
  border-color: rgba(6,182,212,0.3);
}
.modifier-check input[type="checkbox"] {
  accent-color: var(--primary-teal);
  width: 16px;
  height: 16px;
}
.modifier-check.checked {
  background: rgba(6,182,212,0.1);
  border-color: rgba(6,182,212,0.4);
}

@media (max-width: 768px) {
  .tools-grid { grid-template-columns: 1fr !important; }
}