/* ============================================
   ULTIMATE MINING TYCOON WIKI — PREMIUM DESIGN SYSTEM
   Domain: ultimate-mining-tycoon.wiki
   ============================================ */

/* ========== CSS VARIABLES ========== */
:root {
  /* Mining Industrial Color Palette */
  --primary-amber:    #D4920A;
  --primary-teal:     #1A8A7A;
  --primary-copper:   #B87333;
  --primary-bronze:   #CD7F32;
  --accent-diamond:   #7EB8E0;
  --accent-ruby:      #C73B4A;
  --accent-emerald:   #3DAF6B;
  --accent-gold:      #F0C040;
  --accent-unobtainium: #A855F7;

  /* Gradients */
  --gradient-primary:   linear-gradient(135deg, #D4920A 0%, #B87333 100%);
  --gradient-secondary: linear-gradient(135deg, #1A8A7A 0%, #3DAF6B 100%);
  --gradient-accent:    linear-gradient(135deg, #D4920A 0%, #1A8A7A 50%, #B87333 100%);
  --gradient-dark:      linear-gradient(160deg, #06060A 0%, #0A0A14 50%, #08080E 100%);
  --gradient-hero:      radial-gradient(ellipse at 50% 0%, rgba(212,146,10,0.15) 0%, rgba(26,138,122,0.08) 50%, transparent 80%);

  /* Dark Background — Deep Mine Cavern */
  --bg-primary:   #06060A;
  --bg-secondary: #0C0C14;
  --bg-tertiary:  #12121E;
  --bg-hover:     #1A1A28;

  /* Glass Effect */
  --glass-bg:     rgba(12, 12, 20, 0.80);
  --glass-border: rgba(212, 146, 10, 0.20);

  /* Text */
  --text-primary:   #E8E4DC;
  --text-secondary: #9A9488;
  --text-muted:     #5C5850;

  /* Shadows */
  --shadow-sm:          0 2px 8px rgba(0,0,0,0.5);
  --shadow-md:          0 4px 20px rgba(0,0,0,0.6);
  --shadow-lg:          0 8px 40px rgba(0,0,0,0.7);
  --shadow-glow:        0 0 24px rgba(212,146,10,0.45);
  --shadow-glow-teal:   0 0 24px rgba(26,138,122,0.5);

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 10px;
  --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:    1050;
}

/* ========== RESET ========== */
*, *::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: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

/* ========== SCROLLBAR ========== */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--primary-amber), var(--primary-teal));
  border-radius: 5px;
  border: 2px solid var(--bg-secondary);
}
::-webkit-scrollbar-thumb:hover { background: linear-gradient(180deg, #e0a020, #20a090); }

/* ========== 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, #F0E0C0 0%, #D4920A 40%, #B87333 70%, #1A8A7A 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 24px rgba(212,146,10,0.35));
}

h2 { font-size: clamp(1.6rem, 4vw, 2.4rem); font-weight: 800; }
h3 { font-size: clamp(1.25rem, 3vw, 1.875rem); font-weight: 700; }
h4 { font-size: clamp(1.1rem, 2.5vw, 1.4rem); font-weight: 600; }
h5 { font-size: 1.1rem; font-weight: 600; }
h6 { font-size: 0.95rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-secondary); }

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

a {
  color: var(--primary-amber);
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover {
  color: var(--accent-gold);
  text-shadow: 0 0 8px rgba(212,146,10,0.4);
}

/* ========== LAYOUT ========== */
.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(24px);
  -webkit-backdrop-filter: blur(24px);
  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(1.04); color: var(--text-primary); }

.navbar-logo {
  width: 36px;
  height: 36px;
  background: var(--gradient-primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: 0 0 12px rgba(212,146,10,0.45);
}

.navbar-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-xs);
  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;
  white-space: nowrap;
}
.navbar-link:hover, .navbar-link.active {
  color: var(--text-primary);
  background: rgba(212,146,10,0.1);
}
.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 */
.navbar-item { position: relative; }

.navbar-dropdown {
  position: absolute;
  top: 100%; left: 0;
  width: 240px;
  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(212,146,10,0.1);
  color: var(--text-primary);
  transform: translateX(4px);
}

/* Mobile */
@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;
  }
  .navbar-item.dropdown-active .navbar-dropdown { display: block; max-height: 600px; }
}

.navbar-toggle {
  display: none;
  background: none;
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  font-size: 1.4rem;
  cursor: pointer;
  padding: var(--spacing-sm);
  border-radius: var(--radius-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; }
}

/* ========== HERO ========== */
.hero {
  position: relative;
  overflow: hidden;
  background-image: var(--gradient-hero);
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23D4920A' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}
.hero-block {
  font-size: 5rem;
  animation: float 4s ease-in-out infinite;
  display: inline-block;
}

/* ========== 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-primary);
  color: #fff;
  box-shadow: var(--shadow-md);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
  color: #fff;
}
.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-amber);
  color: var(--text-primary);
}
.btn-outline {
  background: transparent;
  color: var(--primary-amber);
  border: 2px solid var(--primary-amber);
}
.btn-outline:hover { background: var(--primary-amber); color: #000; }
.btn-teal {
  background: var(--gradient-secondary);
  color: #fff;
  box-shadow: var(--shadow-md);
}
.btn-teal:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-teal);
  color: #fff;
}
.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; }

/* ========== 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-amber);
}
.card-header {
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--glass-border);
}
.card-title   { font-size: 1.2rem; 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-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 ========== */
.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(220px, 1fr)); }

/* ========== BADGES ========== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  border-radius: var(--radius-sm);
  white-space: nowrap;
}
.badge-amber    { background: rgba(212,146,10,0.2);  color: #D4920A; border: 1px solid #D4920A; }
.badge-teal     { background: rgba(26,138,122,0.2);  color: #2CBDAA; border: 1px solid #1A8A7A; }
.badge-copper   { background: rgba(184,115,51,0.2);  color: #D4953D; border: 1px solid #B87333; }
.badge-diamond  { background: rgba(126,184,224,0.2); color: #7EB8E0; border: 1px solid #7EB8E0; text-shadow: 0 0 6px rgba(126,184,224,0.4); }
.badge-ruby     { background: rgba(199,59,74,0.2);   color: #E05060; border: 1px solid #C73B4A; }
.badge-emerald  { background: rgba(61,175,107,0.2);  color: #5DC880; border: 1px solid #3DAF6B; }
.badge-gold     { background: rgba(240,192,64,0.2);  color: #F0C040; border: 1px solid #F0C040; text-shadow: 0 0 6px rgba(240,192,64,0.4); }
.badge-primary  { background: rgba(212,146,10,0.2);  color: var(--primary-amber); border: 1px solid var(--primary-amber); }
.badge-success  { background: rgba(61,175,107,0.2);  color: #5DC880; border: 1px solid #3DAF6B; }
.badge-warning  { background: rgba(240,192,64,0.2);  color: #F0C040; border: 1px solid #F0C040; }
.badge-danger   { background: rgba(199,59,74,0.2);   color: #E05060; border: 1px solid #C73B4A; }
.badge-purple   { background: rgba(168,85,247,0.2);  color: #C084FC; border: 1px solid #A855F7; }

/* Geological zone badges */
.badge-surface    { background: rgba(139,115,85,0.25);  color: #C4A882; border: 1px solid #8B7355; }
.badge-depths     { background: rgba(100,120,140,0.25); color: #8CAABF; border: 1px solid #64788C; }
.badge-bedrock    { background: rgba(120,100,80,0.25);  color: #B0946A; border: 1px solid #786450; }
.badge-primordial { background: rgba(140,80,60,0.25);   color: #C09070; border: 1px solid #8C503C; }
.badge-tectonic   { background: rgba(180,60,40,0.25);   color: #D08060; border: 1px solid #B43C28; }
.badge-mantle     { background: rgba(200,80,20,0.25);   color: #E0A050; border: 1px solid #C85014; }
.badge-underworld { background: rgba(168,85,247,0.25);  color: #C084FC; border: 1px solid #A855F7; }

/* ========== 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(212,146,10,0.08); }
.table th {
  padding: var(--spacing-md);
  text-align: left;
  font-weight: 700;
  color: var(--primary-amber);
  border-bottom: 2px solid var(--glass-border);
  white-space: nowrap;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.table td {
  padding: var(--spacing-md);
  color: var(--text-secondary);
  border-bottom: 1px solid rgba(212,146,10,0.08);
}
.table tbody tr { transition: background-color var(--transition-fast); }
.table tbody tr:hover { background: rgba(212,146,10,0.05); }
.table tbody tr:last-child td { border-bottom: none; }

/* ========== 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-amber);
  box-shadow: 0 0 0 3px rgba(212,146,10,0.2);
}
.form-select option { background: var(--bg-tertiary); }
.form-textarea { resize: vertical; min-height: 120px; }

/* ========== 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 float      { 0%,100% { transform:translateY(0);   } 50% { transform:translateY(-12px); } }
@keyframes pulse      { 0%,100% { opacity:1; } 50% { opacity:0.65; } }
@keyframes glow       { 0%,100% { box-shadow:0 0 20px rgba(212,146,10,0.4); } 50% { box-shadow:0 0 35px rgba(212,146,10,0.7); } }
@keyframes shimmer    { 0% { background-position:-200% 0; } 100% { background-position:200% 0; } }
@keyframes spin       { from { transform:rotate(0deg); } to { transform:rotate(360deg); } }
@keyframes orePulse   { 0%,100% { opacity:0.03; transform:scale(1); } 50% { opacity:0.07; transform:scale(1.02); } }

.fade-in     { animation: fadeIn   0.6s ease-out; }
.fade-in-up  { animation: fadeInUp 0.6s ease-out; }
.float-anim  { animation: float    4s ease-in-out infinite; }
.glow-anim   { animation: glow     2s ease-in-out infinite; }

/* ========== STAT BOX ========== */
.stat-box {
  text-align: center;
  padding: var(--spacing-lg);
}
.stat-number {
  font-size: clamp(1.8rem,4vw,2.8rem);
  font-weight: 900;
  font-family: var(--font-heading);
  display: block;
  margin-bottom: var(--spacing-xs);
}
.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* ========== DIVIDER ========== */
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--primary-amber), transparent);
  margin: var(--spacing-xl) 0;
  opacity: 0.4;
}

/* ========== HIGHLIGHT BOX ========== */
.highlight-box {
  background: rgba(212,146,10,0.07);
  border-left: 3px solid var(--primary-amber);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: var(--spacing-md) var(--spacing-lg);
  margin: var(--spacing-lg) 0;
}
.highlight-box.teal {
  background: rgba(26,138,122,0.07);
  border-left-color: var(--primary-teal);
}
.highlight-box.emerald {
  background: rgba(61,175,107,0.07);
  border-left-color: var(--accent-emerald);
}
.highlight-box.ruby {
  background: rgba(199,59,74,0.07);
  border-left-color: var(--accent-ruby);
}

/* ========== SECTION LABEL ========== */
.section-label {
  display: inline-block;
  background: rgba(212,146,10,0.12);
  border: 1px solid rgba(212,146,10,0.4);
  border-radius: 999px;
  padding: 4px 16px;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--primary-amber);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: var(--spacing-md);
}

/* ========== UTILITIES ========== */
.text-center  { text-align: center; }
.text-left    { text-align: left; }
.text-right   { text-align: right; }
.text-primary { color: var(--text-primary) !important; }
.text-secondary { color: var(--text-secondary) !important; }
.text-muted   { color: var(--text-muted) !important; }
.text-amber   { color: var(--primary-amber); }
.text-teal    { color: var(--primary-teal); }
.text-copper  { color: var(--primary-copper); }
.text-gold    { color: var(--accent-gold); }
.text-diamond { color: var(--accent-diamond); }
.text-ruby    { color: var(--accent-ruby); }
.text-emerald { color: var(--accent-emerald); }
.text-purple  { color: var(--accent-unobtainium); }

.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); }
.gap-lg { gap: var(--spacing-lg); }

.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-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }
.pt-0  { padding-top: 0; }
.pb-xl { padding-bottom: var(--spacing-xl); }
.py-xl { padding-top: var(--spacing-xl); padding-bottom: var(--spacing-xl); }

.w-full { width: 100%; }
.hidden { display: none !important; }

/* ========== FOOTER ========== */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--glass-border);
}
.footer h4 { color: var(--primary-amber); margin-bottom: var(--spacing-md); font-size: 0.9rem; text-transform: uppercase; letter-spacing: 0.08em; }
.footer a  { color: var(--text-muted); font-size: 0.9rem; transition: color var(--transition-fast); }
.footer a:hover { color: var(--primary-amber); }
.footer-links { display: flex; flex-direction: column; gap: var(--spacing-sm); }
.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--glass-border);
  margin-top: var(--spacing-xl);
}

/* ========== BREADCRUMB ========== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--primary-amber); }
.breadcrumb-sep { color: var(--text-muted); opacity: 0.5; }

/* ========== PAGE HERO (inner pages) ========== */
.page-hero {
  background: linear-gradient(180deg, rgba(212,146,10,0.08) 0%, transparent 100%);
  border-bottom: 1px solid var(--glass-border);
  padding: var(--spacing-2xl) 0 var(--spacing-xl);
}

/* ========== CODE BLOCK ========== */
code {
  background: var(--bg-tertiary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 2px 8px;
  font-family: 'Courier New', monospace;
  font-size: 0.9em;
  color: var(--primary-amber);
}

/* ========== TOOL SPECIFIC STYLES ========== */
.tool-container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.tool-layout {
  display: grid;
  grid-template-columns: 1fr 350px;
  gap: var(--spacing-xl);
}

@media (max-width: 1024px) {
  .tool-layout { grid-template-columns: 1fr; }
}

.tool-sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.tool-main {
  background: var(--bg-tertiary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
}

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

.tool-controls {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.tool-display {
  background: #000;
  border: 1px solid var(--primary-amber);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  font-family: 'Courier New', monospace;
  position: relative;
  overflow: hidden;
  min-height: 200px;
}

.tool-display::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: repeating-linear-gradient(0deg, rgba(212,146,10,0.03) 0px, transparent 1px, transparent 2px);
  pointer-events: none;
}

.tool-result {
  background: rgba(212,146,10,0.08);
  border: 1px solid rgba(212,146,10,0.3);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.progress-bar {
  height: 8px;
  background: var(--bg-primary);
  border-radius: 4px;
  overflow: hidden;
  margin-top: var(--spacing-xs);
}

.progress-fill {
  height: 100%;
  background: var(--gradient-primary);
  width: 0%;
  transition: width var(--transition-base);
}

.data-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-sm);
}

.data-item {
  background: rgba(212, 146, 10, 0.05);
  border: 1px solid var(--glass-border);
  padding: var(--spacing-sm);
  border-radius: var(--radius-sm);
}

.data-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  display: block;
}

.data-value {
  font-weight: 700;
  color: var(--primary-amber);
}

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

@media (max-width: 640px) {
  .calc-grid { grid-template-columns: 1fr; }
}

/* Tool Result Animation */
.result-fade-in {
  animation: fadeIn 0.4s ease-out forwards;
}

/* ========== TOOL SHOWCASE CARDS ========== */
.tool-showcase-card {
  background: var(--glass-bg);
  border: 1px solid rgba(26,138,122,0.3);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  transition: all var(--transition-base);
  text-decoration: none;
  display: block;
}
.tool-showcase-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-glow-teal);
  border-color: var(--primary-teal);
}
.tool-showcase-card .tool-icon {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-sm);
  display: block;
}
.tool-showcase-card h3 {
  color: var(--primary-teal);
  font-size: 1.1rem;
  margin-bottom: var(--spacing-xs);
}
.tool-showcase-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 0;
}

/* ========== FILTER BUTTONS ========== */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}
.filter-btn {
  background: var(--bg-tertiary);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 500;
  transition: all var(--transition-fast);
  font-family: var(--font-body);
}
.filter-btn:hover, .filter-btn.active {
  background: rgba(212,146,10,0.15);
  border-color: var(--primary-amber);
  color: var(--primary-amber);
}

/* ========== CHAIN FLOW ========== */
.chain-flow {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
  padding: var(--spacing-md);
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border);
  margin-bottom: var(--spacing-md);
}
.chain-node {
  background: rgba(212,146,10,0.1);
  border: 1px solid rgba(212,146,10,0.3);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
}
.chain-arrow {
  color: var(--primary-teal);
  font-weight: 700;
  font-size: 1.1rem;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
}
@media (max-width: 640px) {
  .container { padding: 0 var(--spacing-md); }
  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }
  .hero-block { font-size: 3.5rem; }
  .section { padding: var(--spacing-2xl) 0; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}