/* HexClad-inspired: dark, premium, minimalist */
:root {
  --bg: #000000;
  --bg-elevated: #0a0a0a;
  --bg-card: #111111;
  --border: #1a1a1a;
  --border-light: #222222;
  --text-primary: #ffffff;
  --text-secondary: #888888;
  --text-muted: #555555;
  --accent: #c9a96e;
  --accent-hover: #dbb978;
  --hexclad-green: #1B3D2A;
  --danger: #8b2020;
  --danger-hover: #a52a2a;
  --radius: 2px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text-primary);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('HexCladLogo-Stacked.png');
  background-repeat: no-repeat;
  background-position: center center;
  background-size: 50vmin;
  filter: invert(1);
  opacity: 0.16;
  z-index: -1;
  pointer-events: none;
}

/* Header */
header {
  border-bottom: 1px solid var(--border);
  padding: 0 2rem;
}

.header-inner {
  max-width: 560px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 64px;
}

.logo {
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  color: var(--text-primary);
}

#auth-area {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

#user-name {
  font-size: 0.8rem;
  color: var(--text-secondary);
  letter-spacing: 0.05em;
}

/* Buttons */
.btn {
  font-family: var(--font);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  padding: 0.6rem 1.4rem;
}

.btn-primary {
  background: var(--accent);
  color: #000;
  border-radius: var(--radius);
}

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

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
}

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

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  padding: 0.4rem 0.8rem;
}

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

.btn-sm {
  font-size: 0.65rem;
  padding: 0.4rem 0.8rem;
}

.btn-danger {
  background: var(--danger);
  color: var(--text-primary);
  border-radius: var(--radius);
}

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

.btn-icon {
  background: transparent;
  color: var(--text-muted);
  border: none;
  cursor: pointer;
  padding: 0.2rem 0.4rem;
  font-size: 0.75rem;
  transition: color 0.2s;
}

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

/* Main */
main {
  max-width: 560px;
  margin: 0 auto;
  padding: 3rem 2rem;
}

/* View Date Picker */
.view-date-bar {
  margin-bottom: 1rem;
}

.view-date-bar .flatpickr-alt-input,
.view-date-bar .view-date-input {
  width: 100% !important;
  background: var(--bg-elevated) !important;
  border: 1px solid var(--border-light) !important;
  border-radius: var(--radius) !important;
  color: var(--accent) !important;
  font-family: var(--font) !important;
  font-size: 0.85rem !important;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-align: center;
  cursor: pointer;
  padding: 0.7rem 1rem !important;
  transition: border-color 0.2s;
}

.view-date-bar .flatpickr-alt-input:hover {
  border-color: var(--accent) !important;
}

.form-hint {
  font-size: 0.65rem;
  color: var(--text-muted);
  margin-bottom: 0.8rem;
}

/* Toggle Bar */
.toggle-bar {
  display: flex;
  gap: 0;
  margin-bottom: 2rem;
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  overflow: hidden;
  width: fit-content;
}

.toggle-btn {
  font-family: var(--font);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  background: transparent;
  color: var(--text-secondary);
  border: none;
  border-right: 1px solid var(--border-light);
  padding: 0.6rem 1.5rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.toggle-btn:last-child {
  border-right: none;
}

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

.toggle-btn.active {
  background: var(--text-primary);
  color: var(--bg);
}

/* Leaderboard Table */
.leaderboard-table {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.table-header {
  display: grid;
  grid-template-columns: 40px 1fr 1fr 1fr 30px;
  padding: 0.6rem 1rem;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-primary);
  font-weight: 700;
}

.entry-row {
  display: grid;
  grid-template-columns: 40px 1fr 1fr 1fr 30px;
  padding: 0.7rem 1rem;
  border-bottom: 1px solid var(--border);
  align-items: center;
  transition: background 0.15s ease;
}

.entry-row:last-child {
  border-bottom: none;
}

.entry-row:hover {
  background: var(--bg-elevated);
}

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

.entry-row:nth-child(1) .col-rank {
  color: var(--accent);
}

.entry-row:nth-child(2) .col-rank,
.entry-row:nth-child(3) .col-rank {
  color: var(--text-secondary);
}

.col-initials {
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.1em;
}

.col-id {
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.col-score {
  font-weight: 700;
  font-size: 1rem;
  text-align: right;
  letter-spacing: 0.02em;
}

.col-actions {
  text-align: right;
}

.empty-state {
  padding: 3rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
}

/* Refresh Indicator */
.refresh-indicator {
  margin-top: 1.5rem;
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-align: right;
}

/* Manage Panel */
.manage-panel {
  margin-top: 3rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  background: var(--bg-card);
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}

.panel-header h2 {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.add-form h3 {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.form-row {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.2rem;
}

.form-group {
  flex: 1;
}

.form-group label {
  display: block;
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 0.6rem 0.8rem;
  background: var(--bg);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 0.85rem;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent);
}

.form-group input::placeholder {
  color: var(--text-muted);
}

/* Users list */
.users-list {
  margin-top: 1.5rem;
}

.user-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--border);
}

.user-row:last-child {
  border-bottom: none;
}

.user-email {
  font-size: 0.8rem;
  color: var(--text-primary);
}

.user-role {
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-left: 0.5rem;
}

.user-role.admin {
  color: var(--accent);
}

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

.user-actions select {
  background: var(--bg);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 0.7rem;
  padding: 0.3rem 0.4rem;
}

.danger-zone {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

/* Toast notifications */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  color: var(--text-primary);
  padding: 0.8rem 1.2rem;
  font-size: 0.8rem;
  border-radius: var(--radius);
  opacity: 0;
  transform: translateY(10px);
  transition: all 0.3s ease;
  z-index: 100;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

.toast.error {
  border-color: var(--danger);
}

/* Flatpickr overrides */
.flatpickr-calendar {
  font-family: var(--font) !important;
  border-radius: var(--radius) !important;
  border: 1px solid var(--border-light) !important;
}

.flatpickr-calendar.dark {
  background: var(--bg-card) !important;
}

.flatpickr-day.selected {
  background: var(--accent) !important;
  border-color: var(--accent) !important;
  color: #000 !important;
}

.flatpickr-day:hover {
  background: var(--border-light) !important;
  border-color: var(--border-light) !important;
}

.flatpickr-input.flatpickr-mobile,
.manage-panel .flatpickr-alt-input {
  width: 100%;
  padding: 0.6rem 0.8rem;
  background: var(--bg) !important;
  border: 1px solid var(--border-light) !important;
  border-radius: var(--radius) !important;
  color: var(--text-primary) !important;
  font-family: var(--font) !important;
  font-size: 0.85rem !important;
  cursor: pointer;
  transition: border-color 0.2s;
}

.manage-panel .flatpickr-alt-input:hover {
  border-color: var(--accent) !important;
}

/* Responsive */
@media (max-width: 600px) {
  header { padding: 0 1rem; }
  main { padding: 2rem 1rem; }

  .table-header,
  .entry-row {
    grid-template-columns: 40px 1fr 1fr 1fr 30px;
    padding: 0.8rem 1rem;
  }

  .form-row {
    flex-direction: column;
  }
}