:root {
  --bg: #0f172a;
  --panel: #0b1224;
  --surface: #111a30;
  --accent: #7dd3fc;
  --accent-strong: #38bdf8;
  --muted: #94a3b8;
  --border: #1f2a44;
  --danger: #f87171;
  --font: 'Space Grotesk', 'Segoe UI', sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: radial-gradient(circle at 25% 20%, rgba(56, 189, 248, 0.08), transparent 30%),
    radial-gradient(circle at 80% 0%, rgba(125, 211, 252, 0.05), transparent 25%),
    var(--bg);
  color: #e2e8f0;
  font-family: var(--font);
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
}

.shell {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.brand .brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--surface);
  padding: 6px;
  border: 1px solid var(--border);
  object-fit: contain;
}

.brand .badge {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  display: grid;
  place-items: center;
  font-weight: 700;
  color: #0b1224;
}

.layout {
  --sidebar-width: 320px;
  display: grid;
  grid-template-columns: var(--sidebar-width) 8px 1fr;
  gap: 12px;
  align-items: stretch;
  flex: 1;
  min-height: 0;
}

.sidebar {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 0;
  /* use viewport-tied height and keep sidebar sticky */
  height: 95dvh;
  max-height: 95dvh;
  overflow: hidden;
  position: sticky;
  top: 24px;
}

.splitter {
  width: 8px;
  cursor: col-resize;
  border-radius: 12px;
  background: linear-gradient(180deg, rgba(125, 211, 252, 0.4), rgba(56, 189, 248, 0.15));
  border: 1px solid var(--border);
  transition: background 0.1s ease;
}

.splitter:hover {
  background: linear-gradient(180deg, rgba(125, 211, 252, 0.6), rgba(56, 189, 248, 0.25));
}

.search {
  display: flex;
  gap: 8px;
}

.search input[type='text'] {
  flex: 1;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: #e2e8f0;
}

.pill-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 12px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #0b1224;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: transform 0.08s ease;
}

.pill-button:hover {
  transform: translateY(-1px);
}

.contacts {
  flex: 1;
  min-height: 0;
  height: 0;
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  padding: 8px;
}

.contact-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 10px;
  border-radius: 10px;
  border: 1px solid transparent;
  transition: border-color 0.1s ease, background 0.1s ease;
}

.contact-row:hover {
  border-color: var(--border);
  background: #0f1a30;
}

.contact-row.active {
  border-color: var(--accent);
  background: rgba(56, 189, 248, 0.08);
}

.avatar {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background-size: cover;
  background-position: center;
  background-color: #0f172a;
  border: 1px solid var(--border);
}

.meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.meta .name {
  font-weight: 600;
}

.meta .hint {
  color: var(--muted);
  font-size: 13px;
}

.badge-row {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.badge-row .tag {
  background: rgba(125, 211, 252, 0.12);
  color: var(--accent);
  padding: 4px 8px;
  border-radius: 999px;
  font-size: 12px;
  border: 1px solid rgba(125, 211, 252, 0.25);
}

.badge-row .tag-filter-btn {
  cursor: pointer;
}

.badge-row .tag-filter-btn:hover {
  background: rgba(125, 211, 252, 0.25);
}

.tag-filter-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 6px 12px;
  background: rgba(125, 211, 252, 0.08);
  border: 1px solid rgba(125, 211, 252, 0.2);
  border-radius: 8px;
  font-size: 13px;
  color: var(--accent);
  margin-bottom: 8px;
}

.empty {
  text-align: center;
  color: var(--muted);
  padding: 24px 12px;
}

.detail {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  min-height: 0;
  /* detail uses same viewport-tied height and scrolls internally */
  height: 95dvh;
  max-height: 95dvh;
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

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

.detail-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.detail-title {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.detail h1 {
  margin: 0;
  font-size: 22px;
  letter-spacing: 0.3px;
}

.detail-subtitle {
  color: var(--muted);
  font-size: 14px;
}

.detail-avatar.large {
  width: 104px;
  height: 104px;
}

form .grid,
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px 16px;
}

label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
}

input[type='text'],
input[type='email'],
input[type='password'],
input[type='date'],
select,
textarea {
  width: 100%;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: #e2e8f0;
  font-family: var(--font);
}

select {
  cursor: pointer;
}

textarea {
  min-height: 120px;
  resize: vertical;
}

.actions {
  display: flex;
  gap: 10px;
  margin-top: 6px;
}

.ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: #e2e8f0;
}

.danger {
  background: rgba(248, 113, 113, 0.12);
  border: 1px solid rgba(248, 113, 113, 0.4);
  color: #fecdd3;
}

.section-title {
  margin: 8px 0 4px;
  color: #e2e8f0;
  font-weight: 600;
  letter-spacing: 0.4px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

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

.field-stack {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 6px;
}

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

.header-actions {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.user-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 12px;
  background: rgba(125, 211, 252, 0.08);
  border: 1px solid rgba(125, 211, 252, 0.3);
  font-weight: 600;
}

.user-chip .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(125, 211, 252, 0.15);
}

.auth-body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
}

.auth-shell {
  width: min(520px, 100%);
}

.auth-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 28px;
  box-shadow: 0 12px 40px rgba(15, 23, 42, 0.45);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 6px;
}

.auth-actions {
  display: flex;
  align-items: center;
  width: 100%;
  gap: 10px;
}

.auth-actions .pill-button {
  align-self: auto;
}

.auth-create-group {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
}

.auth-create-group span {
  font-size: 14px;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.4px;
}

.auth-redirect {
  margin-top: 8px;
  display: flex;
  justify-content: flex-end;
  gap: 6px;
  font-size: 13px;
  color: var(--muted);
}

.auth-redirect a {
  font-weight: 600;
  color: inherit;
  text-decoration: none;
}

.auth-form.secondary {
  background: rgba(255, 255, 255, 0.02);
  border: 1px dashed var(--border);
  padding: 12px;
  border-radius: 12px;
}

.auth-card label {
  font-weight: 600;
  color: #e2e8f0;
  font-size: 14px;
}

.auth-card .pill-button {
  align-self: flex-start;
}

.alert {
  background: rgba(248, 113, 113, 0.15);
  border: 1px solid rgba(248, 113, 113, 0.4);
  color: #fecdd3;
  padding: 10px 12px;
  border-radius: 12px;
  font-weight: 600;
}

.notice {
  color: var(--muted);
  font-size: 14px;
  background: rgba(148, 163, 184, 0.08);
  border: 1px solid var(--border);
  padding: 10px 12px;
  border-radius: 12px;
}

.divider {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 12px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.6px;
  text-transform: uppercase;
}

.divider span:first-child,
.divider span:last-child {
  height: 1px;
  background: var(--border);
  display: block;
}

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

.detail-avatar {
  width: 72px;
  height: 72px;
  border-radius: 16px;
  background-size: cover;
  background-position: center;
  background-color: #0f172a;
  border: 1px solid var(--border);
}

.stacked-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.identity-list {
  gap: 8px;
}

.row-line {
  display: flex;
  gap: 8px;
  align-items: baseline;
  flex-wrap: wrap;
}

.row-line .label {
  color: var(--muted);
  min-width: 120px;
}

.tags-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.tag-chip {
  position: relative;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(125, 211, 252, 0.15);
  border: 1px solid rgba(125, 211, 252, 0.35);
  color: #e2e8f0;
  font-size: 13px;
}

.tag-chip-link {
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s;
}

.tag-chip-link:hover {
  background: rgba(125, 211, 252, 0.3);
}

.tag-chip + .tag-chip::before {
  content: '';
  position: absolute;
  left: -6px;
  top: 5px;
  bottom: 5px;
  width: 1px;
  background: var(--border);
}

.pill-soft {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 10px;
  background: rgba(125, 211, 252, 0.12);
  border: 1px solid var(--border);
  color: #e2e8f0;
  text-decoration: none;
  word-break: break-all;
}

.notes-block {
  margin-top: auto;
  min-height: 20%;
  flex: 0 0 20%;
}

.flex-column {
  display: flex;
  flex-direction: column;
}

.flex-gap {
  gap: 8px;
}

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

.flex-wrap {
  flex-wrap: wrap;
}

.avatar-row {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 12px;
}

.avatar-frame {
  width: 96px;
  height: 96px;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--surface);
  display: flex;
  align-items: center;
  justify-content: center;
}

.avatar-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.avatar-controls {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.remove-btn {
  padding: 8px 10px;
  font-size: 13px;
}

@media (max-width: 900px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .splitter {
    display: none;
  }

  .sidebar {
    min-height: 0;
    height: auto;
    max-height: none;
    position: static;
  }

  .detail {
    min-height: 0;
    height: auto;
    max-height: none;
    overflow: visible;
  }
}

@media (max-width: 720px) {
  .avatar-row {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* ---- Tag management page ---- */

.tag-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.tag-list-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
}

.tag-list-name-col {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  flex: 1;
  min-width: 0;
}

.tag-tree-name {
  font-weight: 500;
}

.parent-badges {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

.parent-badge {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.12);
  border: 1px solid var(--border);
  color: var(--muted);
}

.tag-tree-actions {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

.pill-button.small {
  padding: 5px 10px;
  font-size: 12px;
  border-radius: 8px;
}

.parent-picker-block {
  max-width: 480px;
  margin-top: 10px;
}

.parent-picker-label {
  font-size: 13px;
  color: var(--muted);
  font-weight: 600;
  margin-bottom: 8px;
}

.parent-picker-label span {
  font-weight: 400;
  opacity: 0.7;
}

.parent-pill-group {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.parent-pill {
  display: inline-flex;
  align-items: center;
  cursor: pointer;
  user-select: none;
}

.parent-pill input[type='checkbox'] {
  display: none;
}

.parent-pill span {
  display: inline-flex;
  align-items: center;
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 13px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  transition: background 0.1s, border-color 0.1s, color 0.1s;
  white-space: nowrap;
}

.parent-pill input[type='checkbox']:checked + span {
  background: rgba(56, 189, 248, 0.18);
  border-color: rgba(125, 211, 252, 0.5);
  color: #e2e8f0;
  font-weight: 600;
}

.parent-pill:hover span {
  border-color: rgba(125, 211, 252, 0.3);
  color: #e2e8f0;
}



/* ---- Contact form tag selector ---- */

.tag-selector-wrapper {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.tag-selector-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--muted);
}

.tag-manage-link {
  font-size: 12px;
  color: var(--accent);
  opacity: 0.8;
}

.tag-manage-link:hover {
  opacity: 1;
}

.tag-chips-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  min-height: 32px;
  align-items: center;
}

.tag-chip-placeholder {
  color: var(--muted);
  font-size: 13px;
  font-style: italic;
}

.tag-picker-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 8px 4px 10px;
  border-radius: 999px;
  background: rgba(56, 189, 248, 0.18);
  border: 1px solid rgba(125, 211, 252, 0.4);
  color: #e2e8f0;
  font-size: 13px;
}

.tag-chip-remove {
  background: none;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 15px;
  line-height: 1;
  padding: 0 2px;
}

.tag-chip-remove:hover {
  color: var(--danger);
}

.tag-dropdown {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  max-height: 220px;
  overflow-y: auto;
  padding: 4px 0;
}

.tag-dropdown-item {
  padding: 7px 10px;
  cursor: pointer;
  font-size: 14px;
  color: #e2e8f0;
  transition: background 0.08s;
  user-select: none;
}

.tag-dropdown-item:hover {
  background: rgba(125, 211, 252, 0.08);
}

.tag-dropdown-item.selected {
  background: rgba(56, 189, 248, 0.15);
  color: var(--accent-strong);
  font-weight: 600;
}

/* ─── Lunar picker: input wrapper ───────────────────────────────────────── */
.lp-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  flex: 1;
  min-width: 0;
}

.lp-input-wrapper input[type='date'] {
  flex: 1;
  width: 100%;
  padding-right: 2.5rem;
}

.lp-cal-btn {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  padding: 4px;
  cursor: pointer;
  color: var(--muted);
  display: flex;
  align-items: center;
  border-radius: 5px;
  line-height: 1;
  transition: color 0.1s ease, background 0.1s ease;
}

.lp-cal-btn:hover {
  color: var(--accent);
  background: rgba(125, 211, 252, 0.1);
}

/* ─── Lunar picker: popup ───────────────────────────────────────────────── */
.lp-popup {
  position: fixed;
  z-index: 9999;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px;
  width: 432px;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.55);
  user-select: none;
  display: none;
}

.lp-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.lp-month-label {
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.3px;
}

.lp-nav {
  background: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: #e2e8f0;
  cursor: pointer;
  padding: 4px 12px;
  font-size: 18px;
  line-height: 1.2;
  transition: background 0.1s ease, border-color 0.1s ease;
}

.lp-nav:hover {
  background: rgba(125, 211, 252, 0.1);
  border-color: var(--accent);
}

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

.lp-wday {
  text-align: center;
  font-size: 11px;
  color: var(--muted);
  padding: 4px 0 6px;
  font-weight: 600;
}

.lp-cell {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 56px;
  border-radius: 8px;
  cursor: pointer;
  padding: 4px 2px;
  transition: background 0.1s ease;
}

.lp-cell:hover {
  background: rgba(125, 211, 252, 0.1);
}

.lp-cell-empty {
  cursor: default;
  pointer-events: none;
}

.lp-today {
  border: 1px solid rgba(125, 211, 252, 0.5);
}

.lp-selected {
  background: rgba(125, 211, 252, 0.2) !important;
}

.lp-selected .lp-greg-day {
  color: var(--accent);
}

.lp-greg-day {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.2;
}

.lp-lunar-day {
  font-size: 10px;
  color: var(--muted);
  line-height: 1.3;
  margin-top: 2px;
  text-align: center;
}

.lp-lunar-day.lp-month-start {
  color: var(--accent-strong);
  font-weight: 600;
}