:root {
  --bg: #f4f6fb;
  --panel: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --border: #e5e9f2;
  --primary: #4f46e5;
  --primary-dark: #4338ca;
  --accent: #0ea5e9;
  --warn-bg: #fef3c7;
  --warn-text: #92400e;
  --danger: #dc2626;
  --radius: 14px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
}

* {
  box-sizing: border-box;
}

/* Several rules below set `display` unconditionally on elements that are
   also toggled via the `hidden` attribute (nav, buttons, views, tabs).
   Author styles beat the UA stylesheet's `[hidden]{display:none}` even at
   equal specificity, so without this override those elements would stay
   visible while "hidden". This one rule keeps `hidden` authoritative. */
[hidden] {
  display: none !important;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

#app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 20px;
  background: var(--panel);
  box-shadow: var(--shadow-sm);
  flex-wrap: wrap;
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 1.05rem;
  white-space: nowrap;
}

.brand-icon {
  height: 32px;
  width: 32px;
  object-fit: contain;
}

.brand-text {
  color: var(--text);
}

.brand-logo {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: white;
  font-family: "SF Mono", "Menlo", monospace;
  font-weight: 800;
  font-size: 0.85rem;
  letter-spacing: 0.03em;
  padding: 4px 9px;
  border-radius: 8px;
  box-shadow: var(--shadow-sm);
}

#main-nav {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  background: var(--bg);
  padding: 4px;
  border-radius: 999px;
}

.nav-btn {
  border: none;
  background: transparent;
  padding: 8px 16px;
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--muted);
  transition: background 0.15s, color 0.15s;
}

.nav-btn.active {
  background: var(--primary);
  color: white;
  box-shadow: var(--shadow-sm);
}

.user-box {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

#user-name {
  font-size: 0.9rem;
  color: var(--muted);
}

button {
  font: inherit;
}

.btn-primary {
  background: var(--primary);
  color: white;
  border: none;
  padding: 9px 16px;
  border-radius: var(--radius);
  cursor: pointer;
}
.btn-primary:hover {
  background: var(--primary-dark);
}
.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-secondary {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 9px 16px;
  border-radius: var(--radius);
  cursor: pointer;
  display: inline-block;
  text-decoration: none;
}

.btn-danger {
  background: white;
  color: var(--danger);
  border: 1px solid var(--danger);
  padding: 6px 12px;
  border-radius: var(--radius);
  cursor: pointer;
}

#app-main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 16px;
  padding-bottom: 60px;
}

.notice {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  color: var(--muted);
  text-align: center;
}

.notice-warn {
  background: var(--warn-bg);
  color: var(--warn-text);
  border-color: #fde68a;
}

.view[hidden] {
  display: none;
}

.toolbar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.toolbar input[type="search"] {
  flex: 1 1 200px;
  padding: 10px 12px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.toolbar select {
  padding: 10px 12px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: white;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  font-size: 0.9rem;
  white-space: nowrap;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 12px;
}

.part-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px;
  cursor: pointer;
  text-align: center;
  transition: box-shadow 0.15s, transform 0.15s;
}
.part-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

/* Category landing tiles */
.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 16px;
}

.category-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 22px 16px;
  text-align: center;
  cursor: pointer;
  transition: box-shadow 0.15s, transform 0.15s;
}

.category-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.category-card .cat-icon {
  width: 68px;
  height: 68px;
  border-radius: 16px;
  margin: 0 auto 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.category-card .cat-icon img {
  width: 44px;
  height: 44px;
}

.category-card .cat-name {
  font-weight: 700;
  font-size: 1rem;
}

.category-card .cat-count {
  color: var(--muted);
  font-size: 0.82rem;
  margin-top: 4px;
}

.parts-section {
  margin-top: 4px;
}

.category-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.category-header h2 {
  margin: 0;
  font-size: 1.15rem;
}

.btn-back {
  border: none;
  background: var(--bg);
  color: var(--primary);
  font-weight: 600;
  font-size: 0.88rem;
  padding: 7px 14px;
  border-radius: 999px;
  cursor: pointer;
}
.btn-back:hover {
  background: #e0e7ff;
}

.part-card img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  border-radius: 6px;
  background: #f1f5f9;
}

.part-card .part-name {
  font-size: 0.85rem;
  font-weight: 600;
  margin-top: 8px;
  line-height: 1.25;
}

.part-card .part-qty {
  font-size: 0.78rem;
  color: var(--muted);
  margin-top: 2px;
}

.part-card .part-qty.low {
  color: var(--danger);
  font-weight: 600;
}

.empty-state {
  text-align: center;
  color: var(--muted);
  padding: 40px 0;
}

.stack {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.stack.small {
  gap: 4px;
}

.row-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.row-card .row-main {
  display: flex;
  align-items: center;
  gap: 10px;
}

.row-card img {
  width: 40px;
  height: 40px;
  object-fit: contain;
  background: #f1f5f9;
  border-radius: 6px;
}

.row-card .row-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.row-card input[type="number"] {
  width: 70px;
  padding: 6px 8px;
  border-radius: 6px;
  border: 1px solid var(--border);
}

.admin-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.tab-btn {
  border: none;
  background: transparent;
  padding: 10px 16px;
  cursor: pointer;
  color: var(--muted);
  border-bottom: 2px solid transparent;
}

.tab-btn.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.admin-tab[hidden] {
  display: none;
}

.admin-category-heading {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  margin: 18px 0 6px;
}
.admin-category-heading:first-child {
  margin-top: 0;
}

.inline-form {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.inline-form input[type="text"] {
  flex: 1 1 200px;
  padding: 9px 12px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.inline-form input[type="number"] {
  width: 100px;
  padding: 9px 12px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.inline-form select {
  padding: 9px 12px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: white;
}

select,
input {
  color: var(--text);
}

.muted {
  color: var(--muted);
}

.error-text {
  color: var(--danger);
  font-size: 0.9rem;
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  z-index: 100;
}

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

.modal {
  background: white;
  border-radius: 14px;
  padding: 20px;
  max-width: 420px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
}

.modal-close {
  position: absolute;
  top: 10px;
  right: 12px;
  background: none;
  border: none;
  font-size: 1.6rem;
  line-height: 1;
  cursor: pointer;
  color: var(--muted);
}

.modal-img {
  width: 100%;
  max-width: 220px;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  background: #f1f5f9;
  border-radius: 10px;
  display: block;
  margin: 0 auto 12px;
}

.modal h2 {
  margin: 0 0 4px;
  text-align: center;
}

.modal .qty-line {
  text-align: center;
  margin: 8px 0;
}

.checkout-controls {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin: 12px 0;
}

.checkout-controls input[type="number"] {
  width: 70px;
  padding: 9px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  text-align: center;
}

.photo-upload {
  text-align: center;
  margin: 12px 0;
}

.modal h3 {
  font-size: 0.95rem;
  margin: 16px 0 6px;
  color: var(--muted);
}

.history-row {
  font-size: 0.82rem;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  gap: 8px;
}

.toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: #0f172a;
  color: white;
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 0.9rem;
  z-index: 200;
}

.toast[hidden] {
  display: none;
}

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

/* Shared form field styling for the event modal + post composer, so
   plain inputs/textarea dropped into a .stack don't need their own class. */
.modal form input[type="text"],
.modal form input[type="url"],
.modal form input[type="datetime-local"],
.modal form textarea,
.composer textarea {
  width: 100%;
  padding: 9px 12px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  font: inherit;
  resize: vertical;
}

.field-label {
  font-size: 0.8rem;
  color: var(--muted);
  margin: 2px 0 -6px;
}

.repeat-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.repeat-row select {
  padding: 9px 12px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: white;
}
.repeat-row input[type="number"] {
  width: 90px;
  padding: 9px 12px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

/* Tag pills — used for the post composer's tag picker, the feed's tag
   filter row, and (as static badges) on each post card. */
.tag-picker {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 8px 0;
}

.tag-filter {
  margin-bottom: 16px;
}

.tag-btn {
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--muted);
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
}

.tag-btn.active {
  border-color: transparent;
}

.tag-badge {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
}

.view-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.view-header h2 {
  margin: 0;
}

/* ---------- Calendar ---------- */
.calendar-widget {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  margin: 0 auto 20px;
  max-width: 420px;
}

.calendar-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.cal-month-label {
  font-weight: 700;
  font-size: 0.9rem;
}

.calendar-weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  text-align: center;
  font-size: 0.68rem;
  color: var(--muted);
  margin-bottom: 3px;
}

.calendar-days {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 2px;
}

.cal-day {
  min-height: 48px;
  border: none;
  background: transparent;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 1px;
  padding: 3px 2px;
  color: var(--text);
}

.cal-day:hover {
  background: var(--bg);
}

.cal-day-num {
  font-size: 0.72rem;
  text-align: center;
}

.cal-day.cal-outside {
  color: #cbd5e1;
}

.cal-day.cal-today .cal-day-num {
  font-weight: 700;
  color: var(--primary);
}

.cal-day.cal-selected {
  background: var(--primary);
  color: white;
}

.cal-day.cal-selected .cal-day-num {
  color: white;
}

.cal-day.cal-selected .cal-event-chip {
  background: rgba(255, 255, 255, 0.3);
  color: white;
}

.cal-event-chip {
  font-size: 0.52rem;
  line-height: 1.2;
  background: rgba(79, 70, 229, 0.12);
  color: var(--primary);
  border-radius: 3px;
  padding: 0 2px;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.cal-more {
  font-size: 0.48rem;
  color: var(--muted);
  text-align: center;
}
.cal-day.cal-selected .cal-more {
  color: rgba(255, 255, 255, 0.85);
}

.events-for-day h3 {
  font-size: 1rem;
  margin: 0 0 12px;
}

.event-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}

.event-card.event-past {
  opacity: 0.6;
}

.event-top {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.event-when {
  font-weight: 700;
  color: var(--primary);
  font-size: 0.9rem;
}

.event-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 2px 0 4px;
}

.event-meta {
  font-size: 0.85rem;
  color: var(--muted);
  margin: 2px 0;
}

.event-meta a {
  color: var(--primary);
}

.event-desc {
  margin: 8px 0;
  font-size: 0.92rem;
  white-space: pre-wrap;
}

.event-actions {
  display: flex;
  gap: 6px;
}

.rsvp-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.rsvp-btn {
  border: 1px solid var(--border);
  background: var(--panel);
  padding: 6px 14px;
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
}

.rsvp-btn.active[data-status="yes"] {
  background: #dcfce7;
  border-color: #86efac;
  color: #15803d;
}
.rsvp-btn.active[data-status="maybe"] {
  background: var(--warn-bg);
  border-color: #fde68a;
  color: var(--warn-text);
}
.rsvp-btn.active[data-status="no"] {
  background: #fee2e2;
  border-color: #fca5a5;
  color: #b91c1c;
}

.rsvp-summary {
  font-size: 0.82rem;
  color: var(--muted);
  margin-left: auto;
}

/* ---------- Team Feed ---------- */
.composer {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  margin-bottom: 18px;
}

.composer-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
}

.composer-actions .btn-primary {
  margin-left: auto;
}

.post-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}

.post-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
}

.post-author {
  font-weight: 700;
}

.post-time {
  font-size: 0.78rem;
  color: var(--muted);
}

.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 4px;
}

.post-text {
  margin: 8px 0;
  white-space: pre-wrap;
}

.post-img {
  max-width: 100%;
  border-radius: 10px;
  margin: 8px 0;
  display: block;
}

.post-footer {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 10px;
}

.reaction-btn {
  border: 1px solid var(--border);
  background: var(--bg);
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 0.85rem;
  cursor: pointer;
}

.reaction-btn.mine {
  border-color: var(--primary);
  background: #eef2ff;
}

.comment-toggle {
  border: none;
  background: none;
  color: var(--muted);
  font-size: 0.85rem;
  cursor: pointer;
}

.comment-thread {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.comment-row {
  font-size: 0.86rem;
  margin-bottom: 8px;
  display: flex;
  justify-content: space-between;
  gap: 8px;
  align-items: baseline;
}

.comment-form {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}

.comment-form input {
  flex: 1;
  padding: 7px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
}

/* ---------- Resources ---------- */
.resources-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}

.resource-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  overflow: hidden;
}

.resource-card img {
  width: 100%;
  border-radius: 8px;
  display: block;
  margin-bottom: 8px;
}

.video-embed {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 8px;
  background: #000;
}
.video-embed iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.resource-title {
  font-weight: 700;
}

.resource-title a {
  color: var(--text);
  text-decoration: none;
}
.resource-title a:hover {
  text-decoration: underline;
}

.resource-desc {
  font-size: 0.85rem;
  color: var(--muted);
  margin: 4px 0;
}

.resource-meta {
  font-size: 0.75rem;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 8px;
}

@media (max-width: 480px) {
  #app-header {
    flex-direction: column;
    align-items: stretch;
  }
  .user-box {
    justify-content: space-between;
  }
  .grid {
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  }
}