/* Modern CSS Reset & Variable Tokens */
:root {
  --bg-primary: #0f172a;       /* Slate 900 */
  --bg-secondary: #1e293b;     /* Slate 800 */
  --border-color: #334155;     /* Slate 700 */
  --text-primary: #f8fafc;     /* Slate 50 */
  --text-secondary: #94a3b8;   /* Slate 400 */
  
  --primary: #3b82f6;          /* Blue 500 */
  --primary-hover: #2563eb;    /* Blue 600 */
  --danger: #ef4444;           /* Red 500 */
  --danger-hover: #dc2626;     /* Red 600 */
  --success: #10b981;          /* Emerald 500 */
  
  --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --radius-lg: 12px;
  --radius-md: 8px;
  --radius-sm: 4px;
  --transition: all 0.2s ease-in-out;
  
  --container-width: 900px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  padding: 16px;
  display: flex;
  justify-content: center;
  min-height: 100vh;
}

/* Layout container */
.app-container {
  width: 100%;
  max-width: var(--container-width);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* App Header */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo-area h1 {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.025em;
}

.icon-logo {
  width: 24px;
  height: 24px;
  color: var(--primary);
}

/* Helper Utilities */
.hidden {
  display: none !important;
}

.icon-inline {
  width: 16px;
  height: 16px;
  vertical-align: middle;
  margin-right: 4px;
}

/* Button UI */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 10px 16px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  color: #ffffff;
  outline: none;
}

.btn-primary {
  background-color: var(--primary);
}
.btn-primary:hover {
  background-color: var(--primary-hover);
}

.btn-secondary {
  background-color: var(--border-color);
  border-color: var(--border-color);
}
.btn-secondary:hover {
  background-color: #475569;
}

.btn-danger {
  background-color: var(--danger);
}
.btn-danger:hover {
  background-color: var(--danger-hover);
}

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

.btn-sm {
  padding: 6px 12px;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 14px 20px;
  font-size: 1.05rem;
}

.btn-block {
  display: flex;
  width: 100%;
}

/* Inputs & Form Groups */
.form-group {
  margin-bottom: 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

input[type="text"],
input[type="number"] {
  width: 100%;
  padding: 12px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 1rem;
  outline: none;
  transition: var(--transition);
}

input[type="text"]:focus,
input[type="number"]:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

/* Hide default up/down spin arrows on number inputs */
input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

input[type="number"] {
  -moz-appearance: textfield;
}

/* Cards & Panel Layouts */
.card, .panel-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px;
}

.panel-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 8px;
}

.view-panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* Setup Screen Player Entry List */
.setup-player-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 12px;
}

.setup-actions-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.setup-error-msg {
  color: var(--danger);
  font-size: 0.85rem;
  font-weight: 500;
  margin-top: -4px;
  margin-bottom: 12px;
}

input.error {
  border-color: var(--danger) !important;
  box-shadow: 0 0 0 2px rgba(239, 68, 68, 0.15) !important;
}

.setup-player-row {
  display: flex;
  gap: 8px;
}

.setup-player-row input {
  flex-grow: 1;
}

.btn-icon-only {
  width: 48px;
  height: 48px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
}
.btn-icon-only:hover {
  background-color: rgba(239, 68, 68, 0.1);
  color: var(--danger);
  border-color: rgba(239, 68, 68, 0.2);
}



.round-badge {
  background-color: var(--border-color);
  padding: 6px 12px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.9rem;
}

/* Grid layout for Dashboard */
.grid-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 768px) {
  .grid-layout {
    grid-template-columns: 1fr 1fr;
  }
}

/* Leaderboard List */
.leaderboard-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.leaderboard-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.leaderboard-card:hover {
  border-color: #475569;
}

.leaderboard-card.leader {
  border-color: rgba(59, 130, 246, 0.4);
  background-color: rgba(59, 130, 246, 0.03);
}

.player-rank-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.rank-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  font-size: 0.85rem;
  font-weight: 700;
  background-color: var(--border-color);
  color: var(--text-secondary);
}

.leader .rank-badge {
  background-color: var(--primary);
  color: #ffffff;
}

.player-details {
  display: flex;
  align-items: center;
  gap: 8px;
}

.player-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.player-name {
  font-weight: 600;
  font-size: 1rem;
}

.player-meta {
  display: flex;
  align-items: center;
  gap: 12px;
}

.player-score {
  font-weight: 700;
  font-size: 1.15rem;
}

.btn-remove-player {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.btn-remove-player:hover {
  color: var(--danger);
  background-color: rgba(239, 68, 68, 0.1);
}

.runtime-add-player {
  display: flex;
  gap: 8px;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border-color);
}

.runtime-add-player input {
  padding: 8px 12px;
  font-size: 0.9rem;
}

.runtime-add-player .btn {
  padding: 8px 16px;
  font-size: 0.9rem;
  white-space: nowrap;
}

/* Score Input Form */
.score-input-fields {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 16px;
}

.player-score-input-row {
  display: grid;
  grid-template-columns: 1fr 120px;
  align-items: center;
  gap: 12px;
}

.player-score-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
}

.input-container-inc {
  display: flex;
  align-items: center;
  position: relative;
  width: 100%;
}

.input-container-inc input {
  padding-right: 32px;
  text-align: right;
}

/* Table Design for History Sheet */
.panel-header, .panel-header-inline {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 8px;
  margin-bottom: 16px;
}

.panel-header h3, .panel-header-inline h3 {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.info-tip {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.table-responsive {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background-color: var(--bg-primary);
}

.history-table {
  width: 100%;
  border-collapse: collapse;
  text-align: center;
  font-size: 0.95rem;
}

.history-table th,
.history-table td {
  padding: 12px;
  border: 1px solid var(--border-color);
  min-width: 80px;
}

.history-table th {
  background-color: var(--bg-secondary);
  font-weight: 600;
  color: var(--text-secondary);
}

.history-table th:first-child {
  min-width: 60px;
}

.history-table tr:hover {
  background-color: rgba(255, 255, 255, 0.02);
}

.editable-cell {
  cursor: pointer;
  transition: var(--transition);
  position: relative;
}

.editable-cell:hover {
  background-color: rgba(59, 130, 246, 0.1);
  color: var(--primary);
}

/* Dialog UI */
dialog.confirm-dialog {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  margin: auto;
  max-width: 400px;
  width: 90%;
  padding: 24px;
  outline: none;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.5);
}

dialog.confirm-dialog::backdrop {
  background-color: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(4px);
}

.dialog-content h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.dialog-content p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 20px;
}

.dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

/* Color dot coding for players */
.dot-0 { background-color: #ef4444; } /* Red */
.dot-1 { background-color: #3b82f6; } /* Blue */
.dot-2 { background-color: #10b981; } /* Emerald */
.dot-3 { background-color: #f59e0b; } /* Amber */
.dot-4 { background-color: #8b5cf6; } /* Purple */
.dot-5 { background-color: #ec4899; } /* Pink */
.dot-6 { background-color: #06b6d4; } /* Cyan */
.dot-7 { background-color: #84cc16; } /* Lime */

/* Row deletion button styling */
.btn-delete-row {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 4px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
  transition: var(--transition);
}

.btn-delete-row:hover {
  color: var(--danger);
  background-color: rgba(239, 68, 68, 0.1);
}