:root {
  --bg: #f4f6f8;
  --surface: #ffffff;
  --ink: #1a2332;
  --muted: #5c6b7a;
  --border: #e2e8f0;
  --accent: #0d9488;
  --accent-hover: #0f766e;
  --accent-soft: #ccfbf1;
  --danger: #dc2626;
  --danger-soft: #fee2e2;
  --ok: #059669;
  --ok-soft: #d1fae5;
  --warn: #d97706;
  --shadow: 0 1px 3px rgba(26, 35, 50, 0.08), 0 8px 24px rgba(26, 35, 50, 0.06);
  --radius: 12px;
  --font: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

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

html {
  font-size: 16px;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(ellipse 80% 50% at 10% -10%, #ccfbf1 0%, transparent 55%),
    radial-gradient(ellipse 60% 40% at 100% 0%, #e0e7ff 0%, transparent 50%),
    var(--bg);
  line-height: 1.5;
}

a {
  color: var(--accent);
}

.app {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
}

header.app-header {
  margin-bottom: 1.75rem;
}

header.app-header h1 {
  margin: 0 0 0.35rem;
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

header.app-header p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  margin-bottom: 1.25rem;
}

.card h2 {
  margin: 0 0 1rem;
  font-size: 1.1rem;
  font-weight: 600;
}

label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 0.35rem;
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="date"],
input[type="datetime-local"],
input[type="password"],
textarea,
select {
  width: 100%;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font: inherit;
  color: var(--ink);
  background: #fff;
  transition: border-color 0.15s, box-shadow 0.15s;
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

textarea {
  min-height: 80px;
  resize: vertical;
}

.field {
  margin-bottom: 1rem;
}

.field:last-child {
  margin-bottom: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.65rem 1.15rem;
  border: none;
  border-radius: 8px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
}

.btn:active {
  transform: scale(0.98);
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover:not(:disabled) {
  background: var(--accent-hover);
}

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

.btn-ghost:hover:not(:disabled) {
  background: var(--bg);
  color: var(--ink);
}

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

.btn-danger:hover:not(:disabled) {
  background: #fecaca;
}

.btn-sm {
  padding: 0.4rem 0.75rem;
  font-size: 0.85rem;
}

.slots {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  gap: 0.6rem;
}

.slot {
  padding: 0.7rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  font: inherit;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--ink);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, color 0.15s;
}

.slot:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.slot.selected {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
}

.empty {
  text-align: center;
  padding: 2rem 1rem;
  color: var(--muted);
}

.empty strong {
  display: block;
  color: var(--ink);
  margin-bottom: 0.35rem;
}

.banner {
  padding: 0.85rem 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
  font-size: 0.95rem;
}

.banner-ok {
  background: var(--ok-soft);
  color: #065f46;
  border: 1px solid #a7f3d0;
}

.banner-error {
  background: var(--danger-soft);
  color: #991b1b;
  border: 1px solid #fecaca;
}

.banner-info {
  background: #eff6ff;
  color: #1e40af;
  border: 1px solid #bfdbfe;
}

.hidden {
  display: none !important;
}

.meta {
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 0.5rem;
}

.selected-slot-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.75rem;
  background: var(--accent-soft);
  color: var(--accent-hover);
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

/* Admin */
.admin-wide {
  max-width: 960px;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

th,
td {
  text-align: left;
  padding: 0.75rem 0.6rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

th {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  font-weight: 600;
}

tr:last-child td {
  border-bottom: none;
}

.badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-booked {
  background: var(--ok-soft);
  color: #065f46;
}

.badge-cancelled {
  background: #f1f5f9;
  color: var(--muted);
}

.row-actions {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.login-box {
  max-width: 360px;
  margin: 4rem auto;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 560px) {
  .grid-2 {
    grid-template-columns: 1fr;
  }

  header.app-header h1 {
    font-size: 1.4rem;
  }
}

footer.site-footer {
  text-align: center;
  color: var(--muted);
  font-size: 0.8rem;
  margin-top: 2rem;
}

/* Service picker (booking) */
.service-list {
  display: grid;
  gap: 0.65rem;
}

.service-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.2rem;
  width: 100%;
  text-align: left;
  padding: 0.85rem 1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  font: inherit;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}

.service-card:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.service-card.selected {
  border-color: var(--accent);
  background: var(--accent-soft);
  box-shadow: 0 0 0 2px var(--accent);
}

.service-name {
  font-weight: 600;
  color: var(--ink);
}

.service-meta {
  font-size: 0.85rem;
  color: var(--muted);
}

/* Admin schedule / services extras */
.weekday-checks {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.85rem;
}

.check-inline {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-weight: 500;
  font-size: 0.9rem;
  margin: 0;
  cursor: pointer;
}

.check-inline input {
  width: auto;
  margin: 0;
}

.grid-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 700px) {
  .grid-3 {
    grid-template-columns: 1fr;
  }
}

input[type="time"],
input[type="number"] {
  width: 100%;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font: inherit;
  color: var(--ink);
  background: #fff;
}


/* Manage appointment page */
.manage-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.manage-summary {
  margin: 0;
  display: grid;
  gap: 0.85rem;
}

.manage-summary > div {
  display: grid;
  grid-template-columns: 7rem 1fr;
  gap: 0.5rem;
  align-items: baseline;
}

.manage-summary dt {
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 600;
}

.manage-summary dd {
  margin: 0;
  font-weight: 500;
}

.status-pill {
  display: inline-block;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
}

.status-booked {
  background: var(--ok-soft);
  color: var(--ok);
}

.status-cancelled {
  background: var(--danger-soft);
  color: var(--danger);
}

.banner a {
  color: inherit;
  font-weight: 700;
  text-decoration: underline;
}

/* ——— Admin tabs ——— */
.admin-tabs {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
  margin: 0 0 1rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.5rem;
}

.admin-tab {
  appearance: none;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 0.45rem 0.95rem;
  font: inherit;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--muted);
  cursor: pointer;
}

.admin-tab:hover {
  color: var(--ink);
  background: var(--bg);
}

.admin-tab.active {
  color: var(--accent-hover);
  background: var(--accent-soft);
  border-color: #99f6e4;
}

.tab-panel.hidden {
  display: none !important;
}

.admin-wide {
  max-width: 1120px;
}

/* ——— Calendar ——— */
.cal-card {
  padding-bottom: 1rem;
}

.cal-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.cal-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
}

.cal-range-label {
  margin: 0 0.35rem;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.cal-tz-badge {
  display: inline-block;
  padding: 0.15rem 0.45rem;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--muted);
  background: var(--bg);
  border: 1px solid var(--border);
}

.cal-view-toggle {
  display: inline-flex;
  gap: 0.25rem;
  background: var(--bg);
  padding: 0.2rem;
  border-radius: 8px;
  border: 1px solid var(--border);
}

.cal-view-btn.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.cal-hint {
  margin: 0 0 0.75rem;
}

.cal-scroll {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
}

.cal-grid {
  min-width: 720px;
}

.cal-layout {
  display: grid;
  grid-template-columns: 56px 1fr;
}

.cal-layout-day .cal-day-heads,
.cal-layout-day .cal-day-cols {
  grid-template-columns: 1fr;
}

.cal-gutter-head,
.cal-day-heads {
  position: sticky;
  top: 0;
  z-index: 2;
  background: #fff;
  border-bottom: 1px solid var(--border);
}

.cal-gutter-head {
  height: 52px;
}

.cal-day-heads {
  display: grid;
  grid-template-columns: repeat(7, minmax(96px, 1fr));
}

.cal-day-head {
  appearance: none;
  background: transparent;
  border: none;
  border-right: 1px solid var(--border);
  padding: 0.45rem 0.35rem;
  text-align: center;
  cursor: pointer;
  font: inherit;
}

.cal-day-head:last-child {
  border-right: none;
}

.cal-day-head.is-today .cal-day-num {
  background: var(--accent);
  color: #fff;
}

.cal-day-head.is-closed {
  opacity: 0.55;
}

.cal-day-name {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.cal-day-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  margin-top: 0.15rem;
  border-radius: 999px;
  font-weight: 700;
}

.cal-gutter-body {
  position: relative;
}

.cal-hour-label {
  position: absolute;
  right: 0.35rem;
  transform: translateY(-50%);
  font-size: 0.68rem;
  color: var(--muted);
  font-weight: 600;
}

.cal-day-cols {
  display: grid;
  grid-template-columns: repeat(7, minmax(96px, 1fr));
  position: relative;
}

.cal-day-col {
  position: relative;
  border-right: 1px solid var(--border);
  background: #fff;
  cursor: crosshair;
}

.cal-day-col:last-child {
  border-right: none;
}

.cal-day-col.is-today {
  background: #f8fffd;
}

.cal-hour-line {
  position: absolute;
  left: 0;
  right: 0;
  border-top: 1px solid #eef2f6;
  pointer-events: none;
}

.cal-offhours {
  position: absolute;
  left: 0;
  right: 0;
  background: repeating-linear-gradient(
    -45deg,
    #f1f5f9,
    #f1f5f9 6px,
    #e8eef4 6px,
    #e8eef4 12px
  );
  opacity: 0.85;
  pointer-events: none;
}

.cal-closed-day {
  opacity: 0.95;
}

.cal-events {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.cal-event {
  position: absolute;
  left: 3px;
  right: 3px;
  border: none;
  border-radius: 6px;
  padding: 0.2rem 0.35rem;
  text-align: left;
  font: inherit;
  cursor: pointer;
  overflow: hidden;
  pointer-events: auto;
  z-index: 1;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.08);
}

.cal-event-title {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  line-height: 1.2;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.cal-event-sub {
  display: block;
  font-size: 0.68rem;
  opacity: 0.9;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.cal-event-appt {
  background: #0d9488;
  color: #fff;
}

.cal-event-appt:hover {
  background: #0f766e;
}

.cal-event-block {
  background: #e2e8f0;
  color: #334155;
  border: 1px dashed #94a3b8;
}

.cal-event-block:hover {
  background: #cbd5e1;
}

.cal-select-overlay {
  position: absolute;
  left: 2px;
  right: 2px;
  background: rgba(13, 148, 136, 0.18);
  border: 1px solid var(--accent);
  border-radius: 6px;
  pointer-events: none;
  z-index: 2;
}

.cal-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 0.85rem;
  font-size: 0.8rem;
  color: var(--muted);
}

.legend-swatch {
  display: inline-block;
  width: 0.85rem;
  height: 0.85rem;
  border-radius: 3px;
  margin-right: 0.3rem;
  vertical-align: -0.1rem;
}

.legend-appt {
  background: #0d9488;
}

.legend-block {
  background: #e2e8f0;
  border: 1px dashed #94a3b8;
}

.legend-off {
  background: repeating-linear-gradient(
    -45deg,
    #f1f5f9,
    #f1f5f9 4px,
    #e8eef4 4px,
    #e8eef4 8px
  );
  border: 1px solid var(--border);
}

/* ——— Modals ——— */
.modal {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal.hidden {
  display: none !important;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
}

.modal-panel {
  position: relative;
  z-index: 1;
  width: min(440px, 100%);
  max-height: min(90vh, 640px);
  overflow: auto;
  margin: 0;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.modal-body {
  margin-bottom: 0.5rem;
}

.modal-footer {
  margin-top: 0.75rem;
}

.detail-dl {
  margin: 0;
  display: grid;
  gap: 0.65rem;
}

.detail-dl > div {
  display: grid;
  grid-template-columns: 6.5rem 1fr;
  gap: 0.5rem;
  align-items: baseline;
}

.detail-dl dt {
  margin: 0;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 600;
}

.detail-dl dd {
  margin: 0;
  font-weight: 500;
  word-break: break-word;
}

.manage-link-code {
  font-size: 0.8rem;
  background: var(--bg);
  padding: 0.15rem 0.35rem;
  border-radius: 4px;
}

@media (max-width: 700px) {
  .cal-grid {
    min-width: 640px;
  }

  .detail-dl > div {
    grid-template-columns: 1fr;
    gap: 0.15rem;
  }
}

.cal-days {
  min-width: 0;
}