/* =========================================================================
   Refrigerator Chess — Core Design System
   Exact Visual Aesthetic, Palette, and Background from isyourrefrigerator.online
   ========================================================================= */

:root {
  /* Blue Chess.com Theme */
  --bg-main: #0f172a;
  --bg-panel: #1e293b;
  --accent-blue: #3b82f6;
  --accent-blue-hover: #2563eb;
  --board-light: #eae9d2;
  --board-dark: #4b7399;

  /* Matte Obsidian & Slate Design System */
  --p: var(--bg-main);
  --p-surface: #131d31;
  --p-card: var(--bg-panel);
  --p-card-hover: #26354d;
  --p-overlay: rgba(15, 23, 42, 0.88);
  --s: #1e293b;
  --s-light: #334155;
  --t: #2563eb;
  --t-glow: rgba(59, 130, 246, 0.2);
  --cyan: var(--accent-blue);
  --cyan-glow: rgba(59, 130, 246, 0.22);
  --green: #22c55e;
  --green-glow: rgba(34, 197, 94, 0.15);
  --red: #ef4444;
  --amber: #f59e0b;
  --text: #f8fafc;
  --text-dim: #94a3b8;
  --text-faint: #64748b;
  --glass: rgba(255, 255, 255, 0.04);
  --glass-border: rgba(59, 130, 246, 0.25);
  --glass-hover-border: rgba(59, 130, 246, 0.65);
  --blue-outline: rgba(59, 130, 246, 0.4);
  --blue-outline-glow: 0 0 16px -2px rgba(59, 130, 246, 0.4);
  --hair: rgba(59, 130, 246, 0.15);

  /* Mapping to components */
  --bg-deep: var(--bg-main);
  --bg-mid: #131d31;
  --bg-surface: var(--p-surface);
  --glass-bg: var(--bg-panel);
  --glass-bg-hover: var(--p-card-hover);
  --accent: var(--accent-blue);
  --accent-hover: var(--accent-blue-hover);
  --accent-dark: #1d4ed8;
  --accent-glow: var(--t-glow);
  --text-primary: var(--text);
  --text-secondary: var(--text-dim);
  --text-muted: var(--text-faint);

  /* Functional */
  --success: var(--green);
  --success-bg: rgba(34, 197, 94, 0.12);
  --warning: var(--amber);
  --warning-bg: rgba(245, 158, 11, 0.12);
  --danger: var(--red);
  --danger-bg: rgba(239, 68, 68, 0.12);

  /* Matte Elevation Shadows */
  --shadow-matte-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.35), 0 1px 2px -1px rgba(0, 0, 0, 0.25);
  --shadow-matte-md: 0 4px 18px -2px rgba(0, 0, 0, 0.45), 0 2px 6px -1px rgba(0, 0, 0, 0.3);
  --shadow-matte-lg: 0 12px 32px -4px rgba(0, 0, 0, 0.6), 0 4px 12px -2px rgba(0, 0, 0, 0.4);

  /* Typography */
  --font-heading: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --font: var(--font-body);

  /* Layout & Radii */
  --sidebar-width: 250px;
  --radius-xl: 20px;
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 6px;
  --radius-xs: 4px;

  /* Transitions */
  --transition-fast: 140ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 220ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 350ms cubic-bezier(0.16, 1, 0.3, 1);
}

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

html, body {
  height: 100%;
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--text-primary);
  background: var(--p);
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, .page-title, .lobby-card-title, .bot-name {
  font-family: var(--font-heading);
  font-weight: 600;
  letter-spacing: -0.025em;
  color: #ffffff;
}

p {
  color: var(--text-dim);
  line-height: 1.55;
}

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

/* Sleek Matte Custom Scrollbars */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: #080c14;
}
::-webkit-scrollbar-thumb {
  background: #233044;
  border-radius: 999px;
  border: 2px solid #080c14;
  background-clip: padding-box;
}
::-webkit-scrollbar-thumb:hover {
  background: #3b4d68;
}

/* ---------- Ambient Background Scene from isyourrefrigerator.online ---------- */
.scene {
  position: fixed;
  inset: 0;
  z-index: 0;
  background: var(--p);
  overflow: hidden;
  pointer-events: none;
}

.scene::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(75% 60% at 85% -5%, rgba(2, 132, 199, 0.12), transparent 70%),
    radial-gradient(55% 50% at -5% 30%, rgba(30, 41, 59, 0.45), transparent 70%),
    radial-gradient(65% 55% at 50% 100%, rgba(2, 132, 199, 0.1), transparent 70%);
}

.aurora {
  position: absolute;
  filter: blur(140px);
  opacity: 0.22;
  border-radius: 50%;
  mix-blend-mode: screen;
}

.aurora.a1 {
  width: 700px;
  height: 700px;
  top: -240px;
  right: -160px;
  background: radial-gradient(circle, var(--cyan) 0%, var(--t) 70%);
  animation: drift 28s ease-in-out infinite alternate;
}

.aurora.a2 {
  width: 600px;
  height: 600px;
  top: 45%;
  left: -180px;
  background: radial-gradient(circle, var(--s-light) 0%, var(--s) 70%);
  animation: drift 35s ease-in-out infinite alternate-reverse;
}

.aurora.a3 {
  width: 500px;
  height: 500px;
  bottom: -150px;
  right: 15%;
  background: var(--t);
  opacity: 0.15;
  animation: drift 32s ease-in-out infinite;
}

@keyframes drift {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(35px, -25px) scale(1.08); }
  100% { transform: translate(-30px, 30px) scale(0.95); }
}

.frost-grid {
  position: absolute;
  inset: 0;
  opacity: 0.025;
  background-image:
    linear-gradient(to right, rgba(148, 163, 184, 0.4) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(148, 163, 184, 0.4) 1px, transparent 1px);
  background-size: 50px 50px;
}

.grain {
  position: absolute;
  inset: 0;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* App Container */
#app {
  display: flex;
  height: 100vh;
  position: relative;
  z-index: 1;
}

/* ---------- Sidebar Navigation ---------- */
.sidebar {
  width: var(--sidebar-width);
  min-width: var(--sidebar-width);
  height: 100vh;
  display: flex;
  flex-direction: column;
  background: #090e17;
  border-right: 1px solid rgba(56, 189, 248, 0.22);
  box-shadow: 2px 0 20px rgba(0, 0, 0, 0.45);
  padding: 18px 14px;
  z-index: 10;
}

.sidebar-logo {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 0 4px 16px;
  border-bottom: 1px solid var(--hair);
  margin-bottom: 14px;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.2s ease;
}

.brand-link:hover {
  transform: translateY(-1px);
}

.brand-link img.logo-icon {
  display: block;
  height: 38px;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.5));
}

.brand-link img.logo-wordmark {
  display: block;
  height: 44px;
  max-width: 175px;
  width: auto;
  object-fit: contain;
}

.brand-subtag {
  display: flex;
  align-items: center;
}

.sidebar-nav {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-dim);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-fast);
  position: relative;
  text-align: left;
}

.nav-item:hover {
  background: rgba(56, 189, 248, 0.08);
  color: #ffffff;
  border-color: rgba(56, 189, 248, 0.35);
  box-shadow: 0 0 10px rgba(56, 189, 248, 0.15);
}

.nav-item.active {
  background: rgba(56, 189, 248, 0.14);
  color: #ffffff;
  border-color: rgba(56, 189, 248, 0.5);
  box-shadow: 0 0 14px rgba(56, 189, 248, 0.25);
  border-left: 3px solid var(--cyan);
}

.nav-item svg {
  flex-shrink: 0;
  opacity: 0.8;
}

.nav-item.active svg {
  opacity: 1;
  color: var(--cyan);
}

.sidebar-external-links {
  padding: 12px 0;
  border-top: 1px solid var(--hair);
  margin-top: 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.sidebar-bottom {
  padding-top: 12px;
  border-top: 1px solid var(--hair);
}

.user-panel {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  background: #111726;
  border: 1px solid rgba(56, 189, 248, 0.25);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.user-panel:hover {
  border-color: var(--cyan);
  box-shadow: 0 0 12px rgba(56, 189, 248, 0.3);
}

.user-panel.hidden { display: none; }

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--t), var(--cyan));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.user-info {
  flex: 1;
  min-width: 0;
}

.user-name {
  display: block;
  font-weight: 600;
  font-size: 13px;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.user-elo {
  display: block;
  font-size: 11px;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-weight: 600;
}

.auth-panel {
  display: flex;
  gap: 8px;
}

.auth-panel.hidden { display: none; }

/* ---------- Main Content Area ---------- */
.main-content {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 28px;
  display: flex;
  justify-content: center;
}

.page {
  max-width: 1280px;
  width: 100%;
}

.page-header {
  margin-bottom: 24px;
}

.page-title {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 6px;
}

.page-subtitle {
  font-size: 0.95rem;
  color: var(--text-dim);
}

.gradient-text {
  background: linear-gradient(90deg, #38bdf8 0%, #0d8cf1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---------- Matte Panels with Blue Outlines ---------- */
.glass-panel {
  background: var(--p-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 20px -2px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(56, 189, 248, 0.1);
}

.glass-panel-hover {
  transition: all var(--transition-normal);
  cursor: pointer;
}

.glass-panel-hover:hover {
  background: var(--p-card-hover);
  border-color: var(--glass-hover-border);
  box-shadow: 0 8px 30px -4px rgba(0, 0, 0, 0.65), var(--blue-outline-glow);
  transform: translateY(-2px);
}

/* ---------- Badges and Pulse Dots ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid var(--glass-border);
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--cyan);
  letter-spacing: 0.02em;
  width: fit-content;
  font-family: var(--font-heading);
}

.badge-accent {
  background: rgba(2, 132, 199, 0.12);
  border-color: rgba(56, 189, 248, 0.28);
  color: var(--cyan);
}

.badge-success {
  background: rgba(34, 197, 94, 0.12);
  border-color: rgba(34, 197, 94, 0.28);
  color: var(--green);
}

.badge-warning {
  background: rgba(245, 158, 11, 0.12);
  border-color: rgba(245, 158, 11, 0.28);
  color: var(--amber);
}

.badge-danger {
  background: rgba(239, 68, 68, 0.12);
  border-color: rgba(239, 68, 68, 0.28);
  color: var(--red);
}

.pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  opacity: 0.9;
  animation: pulse 2.2s infinite ease-in-out;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.8; }
  50% { transform: scale(1.2); opacity: 1; }
}

/* ---------- Matte Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.86rem;
  font-family: var(--font-body);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
  white-space: nowrap;
  text-decoration: none;
}

.btn-fill, .btn-primary {
  background: linear-gradient(180deg, #38bdf8 0%, #0284c7 100%);
  color: #041024;
  font-weight: 700;
  border: 1px solid rgba(56, 189, 248, 0.5);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.btn-fill:hover, .btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.45);
  background: linear-gradient(180deg, #60a5fa 0%, #0369a1 100%);
  color: #041024;
}

.btn-outline, .btn-ghost {
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-dim);
  border: 1px solid var(--glass-border);
}

.btn-outline:hover, .btn-ghost:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(148, 163, 184, 0.28);
  transform: translateY(-1px);
  color: #ffffff;
}

.btn-cozy-glow {
  background: rgba(2, 132, 199, 0.12);
  color: var(--cyan);
  border: 1px solid rgba(56, 189, 248, 0.25);
}

.btn-cozy-glow:hover {
  background: rgba(2, 132, 199, 0.2);
  border-color: var(--cyan);
  color: #ffffff;
  transform: translateY(-1px);
}

.btn-danger {
  background: rgba(239, 68, 68, 0.15);
  color: #fca5a5;
  border: 1px solid rgba(239, 68, 68, 0.28);
}

.btn-danger:hover {
  background: rgba(239, 68, 68, 0.28);
  color: #ffffff;
  transform: translateY(-1px);
}

.btn-sm {
  padding: 6px 14px;
  font-size: 0.82rem;
}

.btn-lg {
  padding: 13px 26px;
  font-size: 0.98rem;
}

.btn-block {
  width: 100%;
}

.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  padding: 0;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-dim);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-icon:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #ffffff;
}

/* ---------- Lobby Cards Grid ---------- */
.lobby-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.lobby-card {
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 16px;
  position: relative;
  overflow: hidden;
}

.card-icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: #111726;
  border: 1px solid rgba(148, 163, 184, 0.14);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  box-shadow: var(--shadow-matte-sm);
}

.lobby-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
}

.lobby-card-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #ffffff;
}

.lobby-card-desc {
  font-size: 0.88rem;
  color: var(--text-dim);
  line-height: 1.5;
}

/* Stats Bar */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.stat-card {
  padding: 18px;
  text-align: center;
}

.stat-value {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 0.82rem;
  color: var(--text-dim);
  margin-top: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ---------- Bot Cards Grid & Bot Modal Popup ---------- */
.bot-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 18px;
}

.bot-card {
  padding: 22px 18px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.bot-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: #111726;
  border: 1px solid rgba(148, 163, 184, 0.16);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  margin-bottom: 12px;
  box-shadow: var(--shadow-matte-sm);
}

.bot-name {
  font-size: 1.15rem;
  font-weight: 700;
  color: #ffffff;
}

.bot-elo {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--cyan);
  margin: 2px 0 8px;
}

.bot-desc {
  font-size: 0.82rem;
  color: var(--text-dim);
  margin-bottom: 12px;
  min-height: 40px;
}

/* Bot Match Setup Modal Popup */
.bot-modal {
  padding: 30px;
  background: #111726;
  border: 1px solid rgba(148, 163, 184, 0.14);
  box-shadow: 0 24px 64px -12px rgba(0, 0, 0, 0.9);
}

.bot-modal-avatar-wrap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 76px;
  height: 76px;
  border-radius: 50%;
  background: #0f1624;
  border: 2px solid rgba(148, 163, 184, 0.2);
  box-shadow: var(--shadow-matte-md);
}

.bot-modal-avatar {
  font-size: 40px;
  line-height: 1;
}

.bot-modal-title {
  font-family: var(--font-heading);
  font-size: 1.55rem;
  font-weight: 700;
  color: #ffffff;
}

.bot-badge-row {
  display: flex;
  justify-content: center;
  gap: 8px;
}

.bot-modal-desc {
  font-size: 0.9rem;
  color: var(--text-dim);
  max-width: 380px;
  margin: 8px auto 0;
}

.bot-side-selector {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 10px;
}

.side-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 14px 10px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--text);
  cursor: pointer;
  transition: all 0.2s ease;
}

.side-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(56, 189, 248, 0.4);
  transform: translateY(-2px);
}

.side-btn.active {
  background: rgba(56, 189, 248, 0.12);
  border-color: var(--cyan);
  box-shadow: var(--shadow-matte-sm);
}

.side-btn .side-piece {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 38px;
  line-height: 1;
}

.side-btn .side-piece-icon {
  font-size: 30px;
  color: var(--cyan);
}

.side-btn .side-name {
  font-weight: 600;
  font-size: 0.92rem;
}

.side-btn .side-sub {
  font-size: 0.72rem;
  color: var(--text-faint);
}

/* ---------- Modals ---------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(4, 7, 15, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  animation: fadeIn 180ms ease;
}

.modal-overlay.hidden { display: none; }

.modal {
  padding: 32px;
  max-width: 480px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  background: #111726;
  border: 1px solid rgba(148, 163, 184, 0.14);
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 64px -12px rgba(0, 0, 0, 0.85);
  animation: slideUp 240ms cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-close {
  position: absolute;
  top: 14px;
  right: 16px;
  width: 32px;
  height: 32px;
  border: none;
  background: none;
  color: var(--text-faint);
  font-size: 26px;
  cursor: pointer;
  transition: color var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-close:hover {
  color: #ffffff;
}

.modal h2 {
  font-family: var(--font-heading);
  font-size: 1.55rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: #ffffff;
}

.modal-icon {
  font-size: 44px;
  margin-bottom: 14px;
  text-align: center;
}

.modal-text {
  color: var(--text-dim);
  font-size: 0.92rem;
  line-height: 1.55;
  margin-bottom: 18px;
}

.promotion-modal {
  max-width: 480px;
  width: 92%;
  padding: 28px 24px;
  text-align: center;
}

.promotion-pieces {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 18px;
}

.promotion-piece {
  min-height: 96px;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.04);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 10px 4px;
  gap: 6px;
}

.promotion-piece .promo-piece-svg,
.promotion-piece .piece {
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.promotion-piece .promo-piece-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-dim);
  transition: color var(--transition-fast);
}

.promotion-piece:hover {
  border-color: var(--cyan);
  background: rgba(2, 132, 199, 0.16);
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(56, 189, 248, 0.25);
}

.promotion-piece:hover .promo-piece-label {
  color: var(--cyan);
}

/* Password Reset Popup */
.forgot-modal-panel {
  max-width: 460px;
  width: 92%;
  padding: 32px 28px;
}

.modal-icon-badge {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.3);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 8px auto;
  box-shadow: 0 0 24px rgba(56, 189, 248, 0.18);
}

/* Secondary Button Component */
.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  padding: 8px 16px;
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(148, 163, 184, 0.4);
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-matte-sm);
}

/* Forms */
.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-dim);
  margin-bottom: 6px;
}

.form-input {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid rgba(148, 163, 184, 0.14);
  border-radius: var(--radius-sm);
  background: #090e17;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.92rem;
  outline: none;
  transition: all var(--transition-fast);
}

.form-input:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.14);
}

.form-error {
  color: var(--red);
  font-size: 0.82rem;
  margin-top: 6px;
}

/* Avatar Selection */
.avatar-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 10px;
  margin-top: 8px;
}

.avatar-option {
  width: 100%;
  aspect-ratio: 1 / 1;
  max-width: 48px;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.04);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  margin: 0 auto;
}

.avatar-option:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--cyan);
}

.avatar-option.selected {
  border-color: var(--cyan);
  background: rgba(56, 189, 248, 0.14);
  box-shadow: 0 0 0 2px rgba(56, 189, 248, 0.35);
}

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

@keyframes slideUp {
  from { opacity: 0; transform: translateY(18px) scale(0.96); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

/* Utilities */
.hidden { display: none !important; }
.text-center { text-align: center; }
.text-accent { color: var(--cyan); }
.text-success { color: var(--green); }
.text-danger { color: var(--red); }
.text-warning { color: var(--amber); }
.text-dim { color: var(--text-dim); }
.text-muted { color: var(--text-faint); }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 14px; }
.mt-3 { margin-top: 22px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 14px; }
.mb-3 { margin-bottom: 22px; }
.p-2 { padding: 14px; }
.p-3 { padding: 22px; }
.d-flex { display: flex; }
.d-block { display: block; }
.justify-content-center { justify-content: center; }
.gap-2 { gap: 14px; }

/* Responsive adjustments */
@media (max-width: 768px) {
  :root {
    --sidebar-width: 68px;
  }

  .sidebar {
    padding: 12px 8px;
  }

  .sidebar-logo .brand-link img.logo-wordmark,
  .brand-subtag,
  .nav-item span,
  .user-info,
  .sidebar-external-links,
  .btn-icon#btn-logout {
    display: none;
  }

  .sidebar-logo {
    align-items: center;
    padding: 0 0 12px;
  }

  .nav-item {
    justify-content: center;
    padding: 12px;
  }

  .main-content {
    padding: 14px;
  }
}