/* ==========================================================================
   PREMIUM RANDOM GROUP SELECTOR - MODERN DARK GLASSMORPHISM STYLESHEET
   ========================================================================== */

:root {
  --bg-dark: #0b0f17;
  --bg-card: rgba(18, 24, 38, 0.85);
  --bg-card-hover: rgba(30, 41, 59, 0.9);
  --border-glass: rgba(255, 255, 255, 0.08);
  --border-glass-strong: rgba(255, 255, 255, 0.16);
  
  --primary-cyan: #06b6d4;
  --primary-cyan-glow: rgba(6, 182, 212, 0.35);
  --accent-purple: #8b5cf6;
  --accent-purple-glow: rgba(139, 92, 246, 0.35);
  --accent-emerald: #10b981;
  --accent-rose: #f43f5e;
  --accent-amber: #f59e0b;

  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --text-dim: #6b7280;

  --font-family: 'Outfit', 'Inter', 'Noto Sans KR', -apple-system, sans-serif;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --transition-fast: 0.18s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.3s cubic-bezier(0.16, 1, 0.3, 1);

  /* Dynamic Card Height Variable */
  --card-height: 140px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: var(--font-family);
  -webkit-font-smoothing: antialiased;
}

body {
  background: var(--bg-dark);
  background-image: 
    radial-gradient(at 0% 0%, rgba(139, 92, 246, 0.12) 0px, transparent 50%),
    radial-gradient(at 100% 0%, rgba(6, 182, 212, 0.12) 0px, transparent 50%),
    radial-gradient(at 50% 100%, rgba(16, 185, 129, 0.08) 0px, transparent 50%);
  color: var(--text-main);
  height: 100vh;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden; /* Prevent body scroll entirely */
}

.app-container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  width: 100%;
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  gap: 1rem;
}

/* ==========================================================================
   Header
   ========================================================================== */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1.25rem;
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  flex-shrink: 0; /* Keep header size fixed */
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--primary-cyan), var(--accent-purple));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 0 15px var(--primary-cyan-glow);
}

.logo-text h1 {
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  background: linear-gradient(90deg, #ffffff, #cbd5e1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-text .badge {
  font-size: 0.6rem;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: var(--radius-full);
  background: rgba(6, 182, 212, 0.15);
  color: var(--primary-cyan);
  border: 1px solid rgba(6, 182, 212, 0.3);
  letter-spacing: 1px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.status-summary {
  display: flex;
  gap: 0.5rem;
}

.stat-pill {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  padding: 0.3rem 0.8rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  min-width: 80px;
}

.stat-pill.highlight-pill {
  background: rgba(6, 182, 212, 0.08);
  border-color: rgba(6, 182, 212, 0.25);
}

.stat-pill .label {
  font-size: 0.65rem;
  color: var(--text-muted);
}

.stat-pill .value {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
}

.stat-pill.highlight-pill .value {
  color: var(--primary-cyan);
}

.btn-icon-setting {
  padding: 0.45rem 0.95rem;
  font-size: 0.8rem;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.15), rgba(139, 92, 246, 0.15));
  border: 1px solid rgba(6, 182, 212, 0.3);
  color: #fff;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  transition: var(--transition-fast);
}

.btn-icon-setting:hover {
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.3), rgba(139, 92, 246, 0.3));
  border-color: var(--primary-cyan);
  transform: translateY(-2px);
  box-shadow: 0 0 20px var(--primary-cyan-glow);
}

/* ==========================================================================
   Main Single Column Layout
   ========================================================================== */
.main-single-layout {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  flex: 1;
  overflow: hidden; /* Prevent outer scroll */
}

.main-action-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1.25rem;
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  flex-shrink: 0; /* Keep action bar fixed */
}

.mode-indicator {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary-cyan);
  background: rgba(6, 182, 212, 0.1);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(6, 182, 212, 0.2);
}

.action-buttons-group {
  display: flex;
  gap: 0.5rem;
}

/* ==========================================================================
   Center Stage Section (No Scroll Stage)
   ========================================================================== */
.stage-section {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  flex: 1;
  overflow: hidden; /* Prevent stage scroll */
}

.draw-stage {
  position: relative;
  height: 250px; /* Fixed height for stage to fit in 100vh */
  flex-shrink: 0; /* Prevent resizing */
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

/* Initial placeholder */
.initial-placeholder {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 150px;
  color: var(--text-dim);
}

.placeholder-icon {
  font-size: 2.5rem;
  margin-bottom: 0.4rem;
  opacity: 0.8;
  animation: pulse 1.5s infinite alternate;
}

.initial-placeholder p {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
}

/* Active Draw Display */
.active-draw-display {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.drawing-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.group-title-badge {
  font-size: 0.95rem;
  font-weight: 800;
  letter-spacing: 1px;
  padding: 0.35rem 1.1rem;
  background: linear-gradient(90deg, var(--primary-cyan), var(--accent-purple));
  color: #fff;
  border-radius: var(--radius-full);
  box-shadow: 0 0 15px var(--primary-cyan-glow);
}

.drawing-status-text {
  font-size: 0.82rem;
  color: var(--primary-cyan);
  font-weight: 600;
  animation: pulse 1s infinite alternate;
}

@keyframes pulse {
  0% { opacity: 0.4; }
  100% { opacity: 1; }
}

/* --------------------------------------------------------------------------
   Cards Grid - Dynamic Scaling Classes
   -------------------------------------------------------------------------- */
.cards-grid {
  display: grid;
  width: 100%;
  gap: 0.6rem;
  justify-content: center;
  align-content: center;
  align-items: center;
}

/* 1. XL Size: 1 ~ 4 Members (Very large) */
.cards-grid.grid-size-xl {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  max-width: 900px;
  margin: 0 auto;
  --card-height: 150px;
}
.cards-grid.grid-size-xl .member-name { font-size: 1.35rem; }
.cards-grid.grid-size-xl .slot-reel { font-size: 1.4rem; }

/* 2. LG Size: 5 ~ 12 Members (Standard) */
.cards-grid.grid-size-lg {
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  --card-height: 110px;
}
.cards-grid.grid-size-lg .member-name { font-size: 1.05rem; }
.cards-grid.grid-size-lg .slot-reel { font-size: 1.15rem; }

/* 3. MD Size: 13 ~ 24 Members (Compact) */
.cards-grid.grid-size-md {
  grid-template-columns: repeat(auto-fit, minmax(95px, 1fr));
  gap: 0.45rem;
  --card-height: 75px;
}
.cards-grid.grid-size-md .member-name { font-size: 0.9rem; }
.cards-grid.grid-size-md .slot-reel { font-size: 0.98rem; }
.cards-grid.grid-size-md .member-num { display: none; }
.cards-grid.grid-size-md .card-front, .cards-grid.grid-size-md .card-back { padding: 0.35rem; }

/* 4. SM Size: 25 ~ 49 Members (Micro cards) */
.cards-grid.grid-size-sm {
  grid-template-columns: repeat(auto-fit, minmax(70px, 1fr));
  gap: 0.3rem;
  --card-height: 50px;
}
.cards-grid.grid-size-sm .member-name { font-size: 0.75rem; font-weight: 600; }
.cards-grid.grid-size-sm .slot-reel { font-size: 0.8rem; }
.cards-grid.grid-size-sm .member-num { display: none; }
.cards-grid.grid-size-sm .card-front, .cards-grid.grid-size-sm .card-back { padding: 0.2rem; }

/* Base Card Styles */
.draw-card {
  perspective: 1000px;
  height: var(--card-height);
  width: 100%;
  transition: height var(--transition-fast);
}

.card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  text-align: center;
  transition: transform 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  transform-style: preserve-3d;
  border-radius: var(--radius-md);
}

.draw-card.revealed .card-inner {
  transform: rotateY(180deg);
}

.card-front, .card-back {
  position: absolute;
  width: 100%;
  height: 100%;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 0.75rem;
}

.card-front {
  background: linear-gradient(145deg, rgba(30, 41, 59, 0.9), rgba(15, 23, 42, 0.9));
  border: 1px solid var(--border-glass-strong);
  color: var(--primary-cyan);
  overflow: hidden;
}

.slot-reel {
  font-weight: 700;
  text-shadow: 0 0 10px var(--primary-cyan-glow);
  white-space: nowrap;
}

.slot-reel.spinning {
  animation: reelBlur 0.1s linear infinite;
}

@keyframes reelBlur {
  0% { transform: translateY(-5px); opacity: 0.7; filter: blur(1px); }
  50% { transform: translateY(5px); opacity: 0.9; filter: blur(2px); }
  100% { transform: translateY(0); opacity: 0.7; filter: blur(1px); }
}

.card-back {
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.2), rgba(139, 92, 246, 0.25));
  border: 1.5px solid var(--primary-cyan);
  transform: rotateY(180deg);
  box-shadow: 0 0 20px rgba(6, 182, 212, 0.3);
}

.card-back .member-num {
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--primary-cyan);
  margin-bottom: 0.2rem;
  text-transform: uppercase;
}

.card-back .member-name {
  font-weight: 700;
  color: #ffffff;
  word-break: break-all;
}

/* ==========================================================================
   Results Area (Dashboard scroll isolation)
   ========================================================================== */
.results-area {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 1rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  flex: 1; /* Stretch to occupy remaining space */
  overflow: hidden; /* Hide outer bounds */
}

.results-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-shrink: 0;
}

.results-header h3 {
  font-size: 1rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Scrollable Groups Grid container */
.groups-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
  flex: 1;
  overflow-y: auto; /* Internal scrolling */
  padding-right: 6px;
  align-content: start;
}

/* Sleek Webkit Scrollbar for groups-grid */
.groups-grid::-webkit-scrollbar {
  width: 6px;
}
.groups-grid::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.02);
  border-radius: var(--radius-full);
}
.groups-grid::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-full);
  transition: var(--transition-fast);
}
.groups-grid::-webkit-scrollbar-thumb:hover {
  background: rgba(6, 182, 212, 0.4);
}

.empty-results {
  grid-column: 1 / -1;
  text-align: center;
  padding: 3rem;
  color: var(--text-dim);
  font-size: 0.88rem;
  border: 1px dashed var(--border-glass);
  border-radius: var(--radius-md);
}

.group-card {
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border-glass-strong);
  border-radius: var(--radius-md);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  transition: var(--transition-normal);
  animation: fadeIn 0.4s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.group-card:hover {
  border-color: rgba(6, 182, 212, 0.4);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
}

.group-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--border-glass);
}

.group-card-header .title {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--primary-cyan);
}

.group-card-header .count {
  font-size: 0.7rem;
  padding: 1px 7px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-full);
  color: var(--text-muted);
}

.group-members-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem; /* Tighter gap */
}

/* Compact member badge */
.member-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.25rem 0.55rem; /* Much smaller padding */
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  font-size: 0.78rem; /* Smaller font size */
  color: var(--text-main);
}

.member-badge .num {
  font-size: 0.68rem;
  color: var(--accent-purple);
  font-weight: 700;
}

/* ==========================================================================
   SETTINGS MODAL POPUP STYLES
   ========================================================================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(5, 8, 15, 0.82);
  backdrop-filter: blur(12px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 1;
  transition: opacity 0.25s ease;
}

.modal-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

.modal-content {
  background: rgba(18, 24, 38, 0.95);
  border: 1px solid var(--border-glass-strong);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 580px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.6);
  transform: scale(1);
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden;
}

.modal-overlay.hidden .modal-content {
  transform: scale(0.92);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border-glass);
  background: rgba(10, 15, 26, 0.5);
}

.modal-tabs {
  display: flex;
  gap: 0.5rem;
}

.modal-tab-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 0.5rem 0.8rem;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}

.modal-tab-btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.05);
}

.modal-tab-btn.active {
  color: var(--primary-cyan);
  background: rgba(6, 182, 212, 0.12);
  border: 1px solid rgba(6, 182, 212, 0.3);
}

.modal-close-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.2rem;
  cursor: pointer;
  padding: 0.3rem 0.6rem;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}

.modal-close-btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

.modal-body {
  padding: 1.5rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.tab-pane {
  display: none;
  flex-direction: column;
  gap: 1rem;
}

.tab-pane.active {
  display: flex;
}

.panel-header-sub {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.preset-group {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.sub-title {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
}

.input-mode-toggle {
  display: flex;
  background: rgba(10, 15, 26, 0.6);
  padding: 2px;
  border-radius: 6px;
  border: 1px solid var(--border-glass);
}

.input-mode-toggle .btn.active {
  background: var(--primary-cyan);
  color: #000;
  font-weight: 700;
}

/* Table View Container */
.member-view-box {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.member-view-box.hidden { display: none; }

.table-actions-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.table-count-badge {
  margin-left: auto;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: var(--radius-full);
  background: rgba(6, 182, 212, 0.15);
  color: var(--primary-cyan);
  border: 1px solid rgba(6, 182, 212, 0.3);
}

.member-table-wrapper {
  max-height: 250px;
  overflow-y: auto;
  border: 1px solid var(--border-glass-strong);
  border-radius: var(--radius-sm);
  background: rgba(10, 15, 26, 0.6);
}

.member-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  text-align: left;
}

.member-table th {
  position: sticky;
  top: 0;
  background: rgba(20, 28, 45, 0.95);
  backdrop-filter: blur(8px);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.78rem;
  padding: 0.5rem 0.8rem;
  border-bottom: 1px solid var(--border-glass-strong);
  z-index: 2;
}

.member-table td {
  padding: 0.35rem 0.8rem;
  border-bottom: 1px solid var(--border-glass);
}

.member-table tr:hover {
  background: rgba(255, 255, 255, 0.03);
}

.table-idx {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--primary-cyan);
}

.table-row-input {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid transparent;
  color: #fff;
  font-size: 0.88rem;
  padding: 3px 6px;
  outline: none;
  transition: var(--transition-fast);
}

.table-row-input:focus {
  border-bottom-color: var(--primary-cyan);
  background: rgba(6, 182, 212, 0.08);
}

.btn-remove-row {
  background: transparent;
  border: none;
  color: var(--accent-rose);
  font-size: 0.95rem;
  cursor: pointer;
  opacity: 0.7;
  padding: 2px 6px;
  transition: var(--transition-fast);
}

.btn-remove-row:hover {
  opacity: 1;
  transform: scale(1.15);
}

.setting-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.setting-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 600;
}

.modal-divider {
  border: 0;
  height: 1px;
  background: var(--border-glass);
}

.modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-glass);
  background: rgba(10, 15, 26, 0.5);
}

/* Form controls in modal */
.quick-preset-btns {
  display: flex;
  gap: 0.35rem;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

textarea {
  width: 100%;
  height: 200px;
  background: rgba(10, 15, 26, 0.8);
  border: 1px solid var(--border-glass-strong);
  border-radius: var(--radius-sm);
  color: #fff;
  padding: 0.8rem;
  font-size: 0.9rem;
  line-height: 1.4;
  resize: vertical;
  outline: none;
  transition: var(--transition-fast);
}

textarea:focus {
  border-color: var(--primary-cyan);
  box-shadow: 0 0 0 3px var(--primary-cyan-glow);
}

.setting-row {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.setting-row.inline-input {
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
}

.radio-toggle {
  display: flex;
  background: rgba(10, 15, 26, 0.6);
  padding: 3px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-glass);
}

.radio-toggle.stacked-toggle {
  flex-direction: column;
  gap: 2px;
}

.radio-toggle input[type="radio"] {
  display: none;
}

.radio-toggle label {
  flex: 1;
  text-align: center;
  padding: 0.45rem 0.6rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: 6px;
  transition: var(--transition-fast);
}

.radio-toggle.stacked-toggle label {
  text-align: left;
  padding-left: 0.8rem;
}

.radio-toggle input[type="radio"]:checked + label {
  background: var(--primary-cyan);
  color: #000;
  font-weight: 600;
  box-shadow: 0 2px 8px var(--primary-cyan-glow);
}

/* Custom Builder Container */
.custom-builder-container {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  background: rgba(10, 15, 26, 0.5);
  border: 1px solid var(--border-glass-strong);
  border-radius: var(--radius-sm);
  padding: 0.8rem;
}

.custom-builder-container.hidden { display: none; }

.custom-builder-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 600;
}

.total-custom-badge {
  font-size: 0.72rem;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  background: rgba(139, 92, 246, 0.2);
  color: var(--accent-purple);
  border: 1px solid rgba(139, 92, 246, 0.3);
}

.custom-groups-list {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  max-height: 180px;
  overflow-y: auto;
  padding-right: 2px;
}

.custom-group-row {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(255, 255, 255, 0.03);
  padding: 0.3rem 0.5rem;
  border-radius: 6px;
  border: 1px solid var(--border-glass);
}

.custom-group-name {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-main);
  font-size: 0.82rem;
  font-weight: 600;
  outline: none;
  width: 80px;
}

.custom-group-name:focus {
  border-bottom: 1px solid var(--primary-cyan);
}

.btn-remove-custom-group {
  background: transparent;
  border: none;
  color: var(--accent-rose);
  font-size: 0.9rem;
  cursor: pointer;
  opacity: 0.7;
  padding: 0 4px;
}
.btn-remove-custom-group:hover { opacity: 1; }

.btn-full { width: 100%; }

.number-stepper {
  display: flex;
  align-items: center;
  background: rgba(10, 15, 26, 0.8);
  border: 1px solid var(--border-glass-strong);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.number-stepper.sm-stepper button {
  width: 26px;
  height: 26px;
  font-size: 0.8rem;
}
.number-stepper.sm-stepper input {
  width: 36px;
  font-size: 0.85rem;
}

.number-stepper button {
  background: transparent;
  border: none;
  color: var(--text-main);
  width: 32px;
  height: 32px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition-fast);
}

.number-stepper button:hover {
  background: rgba(255, 255, 255, 0.1);
}

.number-stepper input {
  width: 48px;
  background: transparent;
  border: none;
  color: #fff;
  text-align: center;
  font-weight: 700;
  font-size: 0.95rem;
}

.toggle-row {
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Switch UI */
.switch {
  position: relative;
  display: inline-block;
  width: 42px;
  height: 24px;
}
.switch input { opacity: 0; width: 0; height: 0; }
.slider {
  position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0;
  background-color: rgba(255,255,255,0.15); transition: .3s; border-radius: 24px;
}
.slider:before {
  position: absolute; content: ""; height: 18px; width: 18px; left: 3px; bottom: 3px;
  background-color: white; transition: .3s; border-radius: 50%;
}
input:checked + .slider { background-color: var(--primary-cyan); }
input:checked + .slider:before { transform: translateX(18px); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
  border: none;
  transition: var(--transition-fast);
  outline: none;
}

.btn-xs { padding: 0.25rem 0.5rem; font-size: 0.72rem; }
.btn-sm { padding: 0.4rem 0.8rem; font-size: 0.8rem; }
.btn-md { padding: 0.65rem 1.2rem; font-size: 0.9rem; }
.btn-xl { padding: 0.85rem 1.4rem; font-size: 1rem; border-radius: var(--radius-md); }

.btn-primary {
  background: linear-gradient(135deg, var(--primary-cyan), var(--accent-purple));
  color: #ffffff;
  box-shadow: 0 4px 15px var(--primary-cyan-glow);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 22px var(--primary-cyan-glow);
}
.btn-primary:active { transform: translateY(0); }

.btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-main);
  border: 1px solid var(--border-glass-strong);
}
.btn-secondary:hover { background: rgba(255, 255, 255, 0.18); }

.btn-accent {
  background: rgba(139, 92, 246, 0.15);
  color: var(--accent-purple);
  border: 1px solid rgba(139, 92, 246, 0.3);
}
.btn-accent:hover {
  background: rgba(139, 92, 246, 0.28);
  box-shadow: 0 0 15px var(--accent-purple-glow);
}

.btn-outline {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border-glass);
}
.btn-outline:hover { color: #fff; border-color: rgba(255,255,255,0.3); }

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
}
.btn-ghost:hover { color: #fff; background: rgba(255,255,255,0.06); }

/* Confetti Canvas */
#confetti-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 99999;
}

/* Responsive */
@media (max-width: 768px) {
  .app-container {
    padding: 1rem;
    height: auto;
    overflow: auto;
  }
  body {
    height: auto;
    overflow: auto;
  }
  .app-header {
    flex-direction: column;
    gap: 1rem;
    align-items: flex-start;
  }
  .header-right {
    width: 100%;
    justify-content: space-between;
  }
  .main-action-bar {
    flex-direction: column;
    gap: 1rem;
    align-items: stretch;
  }
  .action-buttons-group {
    flex-direction: column;
  }
  .draw-stage {
    height: auto;
    min-height: 250px;
  }
  .groups-grid {
    overflow-y: visible;
  }
}