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

:root {
  --bg: #1a1a2e;
  --surface: #16213e;
  --surface2: #0f3460;
  --text: #e0e0e0;
  --text-muted: #8899aa;
  --accent: #e94560;
  --lane-height: 48px;
  --divider-height: 20px;
  --label-width: 140px;
  --header-height: 50px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  height: 100vh;
  overflow: hidden;
}

.hidden { display: none !important; }

/* Login */
#login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
}

.login-box {
  background: var(--surface);
  padding: 40px;
  border-radius: 12px;
  width: 340px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
}

.login-box h1 {
  text-align: center;
  margin-bottom: 24px;
  color: var(--accent);
  font-size: 24px;
}

#login-form input {
  display: block;
  width: 100%;
  padding: 10px 14px;
  margin-bottom: 12px;
  background: var(--bg);
  border: 1px solid var(--surface2);
  border-radius: 6px;
  color: var(--text);
  font-size: 14px;
}

#login-form button {
  width: 100%;
  padding: 10px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 15px;
  cursor: pointer;
  font-weight: 600;
}

#login-form button:hover { opacity: 0.9; }

.login-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 16px 0 12px;
  color: var(--text-muted);
  font-size: 12px;
}
.login-divider::before,
.login-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--surface2);
}

.btn-azure {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 10px;
  background: #0078d4;
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  box-sizing: border-box;
}
.btn-azure:hover { background: #106ebe; }

.error { color: #e94560; font-size: 13px; margin-top: 8px; text-align: center; }

/* Top Bar */
#topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  padding: 0 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--surface2);
}

.topbar-left h1 { font-size: 18px; color: var(--accent); white-space: nowrap; }

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

.topbar-center button, .zoom-controls button {
  padding: 5px 12px;
  background: var(--surface2);
  color: var(--text);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 4px;
  cursor: pointer;
  font-size: 13px;
}

.topbar-center button:hover, .zoom-controls button:hover {
  background: var(--accent);
}

#date-range-label {
  font-size: 13px;
  color: var(--text-muted);
  min-width: 160px;
  text-align: center;
}

.zoom-controls {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: 8px;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

#current-user-name { font-size: 13px; color: var(--text-muted); }

#btn-logout {
  padding: 5px 12px;
  background: transparent;
  color: var(--text-muted);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 4px;
  cursor: pointer;
  font-size: 13px;
}

#btn-logout:hover { color: var(--accent); border-color: var(--accent); }

#btn-admin {
  padding: 5px 12px;
  background: var(--accent);
  color: #fff;
  border: 1px solid transparent;
  border-radius: 4px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
}

#btn-admin:hover { opacity: 0.9; }

/* Category Bar */
#category-bar {
  display: flex;
  align-items: center;
  padding: 6px 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--surface2);
  gap: 8px;
}

.category-label { font-size: 12px; color: var(--text-muted); }

#category-buttons {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

.cat-btn {
  padding: 4px 10px;
  border: 2px solid transparent;
  border-radius: 14px;
  font-size: 12px;
  cursor: pointer;
  color: #fff;
  font-weight: 500;
  transition: all 0.15s;
  white-space: nowrap;
}

.cat-btn:hover { opacity: 0.85; }
.cat-btn.active { border-color: #fff; box-shadow: 0 0 8px rgba(255,255,255,0.3); }

/* App layout — flex column fills viewport */
#app {
  display: flex;
  flex-direction: column;
  height: 100vh;
}

#topbar { flex-shrink: 0; }
#category-bar { flex-shrink: 0; }

/* Timeline */
#timeline-container {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
}

#timeline-header {
  display: flex;
  height: 36px;
  background: var(--surface);
  border-bottom: 1px solid var(--surface2);
  flex-shrink: 0;
}

.lane-label-header {
  width: var(--label-width);
  min-width: var(--label-width);
  display: flex;
  align-items: center;
  padding: 0 12px;
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-right: 1px solid var(--surface2);
  position: relative;
}

#label-resize-handle {
  position: absolute;
  top: 0; right: -3px; bottom: 0;
  width: 6px;
  cursor: col-resize;
  z-index: 5;
}

#label-resize-handle:hover,
#label-resize-handle.dragging {
  background: var(--accent);
  opacity: 0.5;
}

#date-headers {
  display: flex;
  overflow: hidden;
  flex: 1;
  position: relative;
}

.date-header {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  color: var(--text-muted);
  border-right: 1px solid rgba(255,255,255,0.05);
  flex-shrink: 0;
  user-select: none;
}

.date-header.today { color: var(--accent); font-weight: 700; }
.date-header.weekend { color: rgba(255,255,255,0.2); }

/* Date header boundary markers */
.date-header.weekend-start { border-left: 1px solid rgba(255,255,255,0.12); }
.date-header.month-start { border-left: 2px solid rgba(255,255,255,0.25); color: var(--text); font-weight: 700; }
.date-header.year-start { border-left: 2px solid var(--accent); color: var(--accent); font-weight: 700; }

#timeline-body {
  display: flex;
  flex: 1;
  overflow: hidden;
  min-height: 0;
}

#lanes-labels {
  width: var(--label-width);
  min-width: var(--label-width);
  overflow-y: hidden;
  border-right: 1px solid var(--surface2);
}

.lane-label {
  height: var(--lane-height);
  display: flex;
  align-items: center;
  padding: 0 12px;
  font-size: 13px;
  font-weight: 500;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  gap: 8px;
}

.lane-label .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.summary-lane-label {
  font-style: italic;
  color: var(--text-muted);
}

#lanes-area {
  flex: 1;
  overflow: auto;
  position: relative;
}

#grid-lines {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  pointer-events: none;
}

.grid-line {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 1px;
  background: rgba(255,255,255,0.04);
}

.grid-line.weekend { background: rgba(255,255,255,0.02); }
.grid-line.today { background: var(--accent); opacity: 0.3; width: 2px; }

/* Boundary marker lines */
.grid-line.weekend-start { background: rgba(255,255,255,0.10); width: 1px; }
.grid-line.weekend-end { background: rgba(255,255,255,0.10); width: 1px; }
.grid-line.month-start { background: rgba(255,255,255,0.22); width: 1px; z-index: 1; }
.grid-line.year-start { background: var(--accent); opacity: 0.5; width: 2px; z-index: 1; }

#lanes { position: relative; }

.lane {
  height: var(--lane-height);
  position: relative;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

.lane:nth-child(even) { background: rgba(255,255,255,0.01); }

/* Lane Dividers */
.lane-divider {
  height: var(--divider-height);
  background: rgba(233, 69, 96, 0.08);
  border-bottom: 1px solid rgba(233, 69, 96, 0.25);
  border-top: 1px solid rgba(233, 69, 96, 0.25);
  position: relative;
}

.lane-divider-label {
  height: var(--divider-height);
  display: flex;
  align-items: center;
  padding: 0 12px;
  font-size: 10px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
  background: rgba(233, 69, 96, 0.08);
  border-bottom: 1px solid rgba(233, 69, 96, 0.25);
  border-top: 1px solid rgba(233, 69, 96, 0.25);
}

/* Summary Lanes */
.summary-lane {
  height: var(--lane-height);
  position: relative;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  background: rgba(255,255,255,0.02);
}

.summary-cell {
  position: absolute;
  top: 0;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  color: #fff;
  border-right: 1px solid rgba(255,255,255,0.03);
  user-select: none;
}

.summary-cell.weekend { opacity: 0.5; }

/* Events */
.event {
  position: absolute;
  height: 32px;
  top: 8px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  padding: 0 8px;
  font-size: 11px;
  font-weight: 500;
  color: #fff;
  cursor: grab;
  user-select: none;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  min-width: 4px;
  z-index: 2;
  transition: box-shadow 0.15s;
}

.event:hover { box-shadow: 0 2px 12px rgba(0,0,0,0.4); z-index: 3; }
.event.dragging { opacity: 0.7; cursor: grabbing; z-index: 10; }
.event.not-editable { cursor: default; }

.event .resize-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 8px;
  cursor: col-resize;
  z-index: 4;
}

.event .resize-handle.left { left: 0; }
.event .resize-handle.right { right: 0; }

.event .event-label {
  pointer-events: none;
  overflow: hidden;
  text-overflow: ellipsis;
}

.event .delete-btn {
  position: absolute;
  right: 2px;
  top: 2px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: rgba(0,0,0,0.5);
  color: #fff;
  font-size: 10px;
  display: none;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border: none;
  line-height: 1;
}

.event:hover .delete-btn { display: flex; }

/* Drag Preview */
#drag-preview {
  position: absolute;
  height: 32px;
  border-radius: 6px;
  opacity: 0.5;
  pointer-events: none;
  z-index: 5;
}

/* Tooltip */
.event-tooltip {
  position: fixed;
  background: var(--surface);
  border: 1px solid var(--surface2);
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 12px;
  z-index: 100;
  pointer-events: none;
  box-shadow: 0 4px 16px rgba(0,0,0,0.4);
  max-width: 240px;
}

.event-tooltip .tt-cat { font-weight: 600; margin-bottom: 2px; }
.event-tooltip .tt-title { font-weight: 500; font-size: 12px; margin-bottom: 2px; }
.event-tooltip .tt-dates { color: var(--text-muted); font-size: 11px; }
.event-tooltip .tt-note { color: var(--text-muted); font-size: 11px; margin-top: 2px; font-style: italic; }

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
}

.modal {
  background: var(--surface);
  border-radius: 12px;
  width: 520px;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: 0 8px 32px rgba(0,0,0,0.5);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--surface2);
  position: sticky;
  top: 0;
  background: var(--surface);
  z-index: 1;
}

.modal-header h2 { font-size: 18px; color: var(--accent); }

.modal-close-btn {
  background: none; border: none; color: var(--text-muted);
  font-size: 22px; cursor: pointer;
}

.modal-close-btn:hover { color: var(--text); }

.modal-body { padding: 20px; }

.modal-body h3 {
  font-size: 13px; color: var(--text-muted);
  margin: 20px 0 8px; text-transform: uppercase; letter-spacing: 0.5px;
}

.modal-body h3:first-child { margin-top: 0; }

/* Admin user list */
.admin-user-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

.admin-user-name { font-weight: 500; }

.admin-user-username { color: var(--text-muted); font-size: 12px; flex: 1; }

.admin-delete-btn {
  padding: 3px 10px;
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 4px;
  cursor: pointer;
  font-size: 11px;
  white-space: nowrap;
}

.admin-delete-btn:hover { background: var(--accent); color: #fff; }

.admin-admin-btn {
  padding: 3px 10px;
  background: transparent;
  color: #f39c12;
  border: 1px solid #f39c12;
  border-radius: 4px;
  cursor: pointer;
  font-size: 11px;
  white-space: nowrap;
}

.admin-admin-btn:hover { background: #f39c12; color: #fff; }

/* Admin forms */
.form-row {
  display: flex;
  gap: 8px;
  margin-bottom: 8px;
}

.modal-body input[type="text"],
.modal-body input[type="password"] {
  flex: 1;
  padding: 8px 12px;
  background: var(--bg);
  border: 1px solid var(--surface2);
  border-radius: 6px;
  color: var(--text);
  font-size: 13px;
}

.modal-body input[type="color"] {
  width: 40px; height: 34px;
  background: none; border: 1px solid var(--surface2);
  border-radius: 6px; cursor: pointer; padding: 2px;
}

.modal-body select {
  flex: 1;
  padding: 8px 12px;
  background: var(--bg);
  border: 1px solid var(--surface2);
  border-radius: 6px;
  color: var(--text);
  font-size: 13px;
}

.modal-body button[type="submit"] {
  padding: 8px 20px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
}

.modal-body button[type="submit"]:hover { opacity: 0.9; }

/* Checkbox group */
.checkbox-group {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 12px;
  padding: 4px 0;
}

.checkbox-label {
  font-size: 12px;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
  accent-color: var(--accent);
}

/* Scrollbar */
#lanes-area::-webkit-scrollbar { width: 8px; height: 8px; }
#lanes-area::-webkit-scrollbar-track { background: var(--bg); }
#lanes-area::-webkit-scrollbar-thumb { background: var(--surface2); border-radius: 4px; }

.modal::-webkit-scrollbar { width: 6px; }
.modal::-webkit-scrollbar-track { background: var(--surface); }
.modal::-webkit-scrollbar-thumb { background: var(--surface2); border-radius: 3px; }

/* Settings button */
#btn-settings {
  padding: 5px 10px;
  background: transparent;
  color: var(--text-muted);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 4px;
  cursor: pointer;
  font-size: 16px;
}

#btn-settings:hover { color: var(--accent); border-color: var(--accent); }

/* Settings modal */
.modal-settings { width: 420px; }

.settings-hint { font-size: 11px; color: var(--text-muted); margin-bottom: 10px; }

.modal-settings input[type="password"] {
  display: block;
  width: 100%;
  padding: 8px 12px;
  margin-bottom: 10px;
  background: var(--bg);
  border: 1px solid var(--surface2);
  border-radius: 6px;
  color: var(--text);
  font-size: 13px;
}

.success { color: #2ecc71; font-size: 13px; margin-top: 8px; text-align: center; }

/* Admin reorder buttons */
.admin-reorder-btns {
  display: flex;
  gap: 2px;
  margin-left: auto;
  margin-right: 4px;
}

.admin-reorder-btn {
  width: 22px;
  height: 22px;
  background: var(--surface2);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 3px;
  color: var(--text-muted);
  font-size: 11px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.admin-reorder-btn:hover { background: var(--accent); color: #fff; }
.admin-reorder-btn:disabled { opacity: 0.2; cursor: default; background: var(--surface2); color: var(--text-muted); }

/* Per-lane summary toggle */
.summary-lane-toggle {
  margin-left: auto;
  padding: 2px 6px;
  background: var(--surface2);
  color: var(--text-muted);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 3px;
  cursor: pointer;
  font-size: 10px;
  line-height: 1;
  flex-shrink: 0;
}

.summary-lane-toggle:hover { color: var(--text); border-color: var(--text-muted); }

/* Color scheme selector */
.scheme-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px;
  border-radius: 6px;
  cursor: pointer;
  border: 2px solid transparent;
  margin-bottom: 4px;
  flex-wrap: wrap;
}

.scheme-row:hover { background: rgba(255,255,255,0.05); }
.scheme-row.active { border-color: var(--accent); }
.scheme-name { font-size: 13px; min-width: 80px; font-weight: 500; }
.scheme-swatches { display: flex; gap: 4px; }
.scheme-swatch {
  width: 20px; height: 20px; border-radius: 4px;
  border: 1px solid rgba(255,255,255,0.15);
}
.scheme-note { font-size: 11px; color: var(--text-muted); font-style: italic; }
.scheme-theme-preview { display: flex; gap: 2px; }
.scheme-theme-swatch {
  width: 14px; height: 14px; border-radius: 3px;
  border: 1px solid rgba(255,255,255,0.15);
}

/* Summary bar mode */
.summary-cell.bar-mode {
  align-items: flex-end;
  justify-content: center;
  font-size: 0;
}

.summary-bar {
  width: 60%;
  min-height: 2px;
  border-radius: 2px 2px 0 0;
  transition: height 0.15s;
}

/* Event Detail Modal */
.modal-event { width: 420px; }

.event-form-group {
  margin-bottom: 14px;
}

.event-form-group label {
  display: block;
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
  font-weight: 600;
}

.event-form-group input[type="text"],
.event-form-group input[type="date"],
.event-form-group textarea,
.event-form-group select {
  width: 100%;
  padding: 8px 12px;
  background: var(--bg);
  border: 1px solid var(--surface2);
  border-radius: 6px;
  color: var(--text);
  font-size: 13px;
  font-family: inherit;
}

.event-form-group textarea {
  resize: vertical;
  min-height: 60px;
}

.event-form-group input:read-only,
.event-form-group textarea:read-only,
.event-form-group select:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.event-form-row {
  display: flex;
  gap: 12px;
}

.event-form-row .event-form-group {
  flex: 1;
}

.event-modal-actions {
  display: flex;
  gap: 8px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--surface2);
}

#event-modal-save {
  padding: 8px 24px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
}

#event-modal-save:hover { opacity: 0.9; }

#event-modal-delete {
  padding: 8px 16px;
  background: transparent;
  color: #e74c3c;
  border: 1px solid #e74c3c;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  margin-left: auto;
}

#event-modal-delete:hover { background: #e74c3c; color: #fff; }

/* Toast notifications */
#toast-container {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast {
  padding: 10px 16px;
  border-radius: 6px;
  font-size: 13px;
  color: #fff;
  box-shadow: 0 4px 12px rgba(0,0,0,0.4);
  max-width: 320px;
  opacity: 1;
  transition: opacity 0.3s;
}

.toast-error { background: #c0392b; }
.toast-success { background: #27ae60; }
.toast-info { background: var(--surface2); }
.toast-fade { opacity: 0; }

/* Search input */
#event-search {
  margin-left: auto;
  padding: 4px 10px;
  background: var(--bg);
  border: 1px solid var(--surface2);
  border-radius: 14px;
  color: var(--text);
  font-size: 12px;
  outline: none;
  width: 160px;
  transition: width 0.2s, border-color 0.15s;
}

#event-search:focus { border-color: var(--accent); width: 210px; }
#event-search::placeholder { color: var(--text-muted); }

/* Export button */
#btn-export {
  padding: 5px 12px;
  background: transparent;
  color: var(--text-muted);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 4px;
  cursor: pointer;
  font-size: 13px;
}

#btn-export:hover { color: var(--accent); border-color: var(--accent); }

.event-modal-readonly-notice {
  font-size: 12px;
  color: var(--text-muted);
  font-style: italic;
  text-align: center;
  padding: 8px 0;
  margin-top: 12px;
  border-top: 1px solid var(--surface2);
}