:root{
  --bg-1: #fff5f8;
  --bg-2: #ffeef5;
  --grad-left: #f8c8dc;
  --grad-mid: #f9e6ff;
  --grad-right: #ffd700;
  --text-dark: #4a2c2a;
  --accent: #8b5e3c;
  --card-shadow: rgba(74,44,42,0.15);
  --muted: #666666;
}

.request-loader {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 20px;
  color: var(--text-dark);
  background: rgba(255, 255, 255, .42);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  font-size: .88rem;
  font-weight: 700;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  cursor: wait;
  transition: opacity .18s ease, visibility .18s ease;
}

.request-loader.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.request-loader-spinner {
  width: 20px;
  height: 20px;
  border: 3px solid rgba(139, 94, 60, .22);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: request-loader-spin .7s linear infinite;
}

@keyframes request-loader-spin {
  to { transform: rotate(360deg); }
}

/* Base site styles copied from main site so standalone pages match */
body {
  font-family: 'Segoe UI', sans-serif;
  margin: 0;
  background: linear-gradient(to bottom, var(--bg-1), var(--bg-2));
  color: #444;
}

header {
  background: linear-gradient(to right, var(--grad-left), var(--grad-mid), var(--grad-right));
  padding: 20px;
  text-align: center;
  color: var(--text-dark);
}

header h1 { margin: 0; font-size: 2.2em; }

nav { margin-top: 10px; }
nav a { margin: 0 12px; text-decoration: none; color: var(--text-dark); font-weight: bold; }

.btn {
  background: linear-gradient(90deg,var(--grad-left),var(--grad-mid));
  border: none;
  padding: 10px 14px;
  margin: 10px;
  font-size: 1em;
  cursor: pointer;
  border-radius: 8px;
  color: var(--text-dark);
  transition: 0.3s;
  text-decoration: none;
}
.btn:hover { background: var(--grad-right); color: #fff; transform: scale(1.03); }

/* Heading rules for standalone pages */
h1, h2 {
  text-align: center;
  color: var(--text-dark);
  font-family: 'Segoe UI', sans-serif;
  margin: 18px 0;
}

h1 { font-size: 2.2em; font-weight: 700; }
h2 { font-size: 1.6em; font-weight: 700; }

/* Forms / buttons used by signup/login (styled to match main site) */
form {
  max-width:520px;
  margin:22px auto;
  background: linear-gradient(180deg, rgba(255,255,255,0.96), rgba(255,250,250,0.9));
  padding:20px;
  border-radius:14px;
  box-shadow: 0 8px 24px var(--card-shadow);
  transition: transform 0.22s ease, box-shadow 0.22s ease;
}
form:hover { transform: translateY(-6px); }

form label { display:block; margin:10px 0; font-weight:700; color:var(--text-dark); }

input[type="email"], input[type="password"], input[type="tel"], input[type="date"], input[type="text"] {
  width:100%;
  padding:10px 12px;
  border-radius:10px;
  border:1px solid rgba(0,0,0,0.06);
  box-sizing:border-box;
  background: #fff;
  margin-top:8px;
  font-size:1rem;
  transition: box-shadow 0.18s ease, transform 0.18s ease;
}

textarea {
  width: 100%;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid rgba(0,0,0,0.06);
  box-sizing: border-box;
  background: #fff;
  margin-top: 8px;
  font: inherit;
  resize: vertical;
}

input:focus { outline:none; box-shadow: 0 6px 18px rgba(248,200,220,0.22); transform: translateY(-2px); }

button { cursor:pointer; border-radius:10px; padding:10px 14px; border:none; font-weight:700; color:var(--text-dark); background: linear-gradient(90deg,var(--grad-left),var(--grad-mid)); transition: transform 0.18s ease, box-shadow 0.18s ease; }
button:hover { transform: translateY(-4px); box-shadow: 0 10px 20px rgba(0,0,0,0.08); }

/* Message Boxes for Login/Signup/Auth Feedback */
.msg-box {
  padding: 12px 16px;
  border-radius: 10px;
  margin: 14px 0;
  font-weight: 600;
  font-size: 0.95rem;
  text-align: center;
  transition: all 0.3s ease;
}

.msg-box.success {
  background-color: #e6f4ea;
  color: #137333;
  border: 1px solid #ceead6;
  box-shadow: 0 4px 12px rgba(19, 115, 51, 0.08);
}

.msg-box.error {
  background-color: #fce8e6;
  color: #c5221f;
  border: 1px solid #fad2cf;
  box-shadow: 0 4px 12px rgba(197, 34, 31, 0.08);
}

.msg-box.info {
  background-color: #e8f0fe;
  color: #1a73e8;
  border: 1px solid #d2e3fc;
}

.logged-in-banner {
  max-width: 520px;
  margin: 16px auto;
  line-height: 1.5;
}

/* Navbar Logout element */
.nav-logout-btn {
  background: linear-gradient(90deg, #f8c8dc, #ffd700);
  color: #4a2c2a !important;
  padding: 6px 14px;
  border-radius: 20px;
  text-decoration: none;
  font-weight: 700 !important;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.25s ease;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  cursor: pointer;
  border: none;
  margin-left: 10px;
}

.nav-logout-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.18);
  background: linear-gradient(90deg, #ffd700, #f8c8dc);
}

/* Duration Selector Bar Styles */
.duration-selector-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  background: linear-gradient(135deg, #fff5f8 0%, #ffeef5 50%, #f9e6ff 100%);
  padding: 14px 18px;
  border-radius: 12px;
  border: 1.5px solid #f8c8dc;
  box-shadow: 0 4px 15px rgba(74, 44, 42, 0.08);
  margin: 14px 0;
  flex-wrap: wrap;
}

.duration-label {
  font-weight: 700;
  color: #4a2c2a;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0 !important;
}

.duration-select {
  padding: 8px 14px;
  font-size: 0.95rem;
  font-weight: 600;
  color: #4a2c2a;
  background-color: #ffffff;
  border: 2px solid #f8c8dc;
  border-radius: 8px;
  cursor: pointer;
  outline: none;
  transition: all 0.25s ease;
  box-shadow: 0 2px 6px rgba(0,0,0,0.04);
}

.duration-select:hover {
  border-color: #8b5e3c;
  box-shadow: 0 4px 10px rgba(139, 94, 60, 0.15);
}

.duration-select:focus {
  border-color: #8b5e3c;
  box-shadow: 0 0 0 3px rgba(248, 200, 220, 0.5);
}

.duration-create-btn {
  padding: 9px 16px;
  font-size: 0.95rem;
  font-weight: 700;
  color: #4a2c2a;
  background: linear-gradient(90deg, #f8c8dc, #f9e6ff, #ffd700);
  background-size: 200% auto;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 3px 10px rgba(74, 44, 42, 0.12);
}

.duration-create-btn:hover {
  background-position: right center;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(74, 44, 42, 0.2);
}

.admin-slot-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
}

.btn-admin-action {
  padding: 8px 14px;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  background: linear-gradient(90deg, #f8c8dc, #f9e6ff);
  color: #4a2c2a;
  transition: all 0.2s ease;
}

.btn-admin-action:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.12);
}

.btn-admin-action.warning {
  background: #f0ad4e;
  color: #fff;
}

.btn-admin-action.danger {
  background: #d9534f;
  color: #fff;
}

.btn-admin-action.danger:hover {
  background: #c9302c;
}

.selected-slot-info {
  font-weight: 700;
  color: #8b5e3c;
  background: #fff;
  padding: 10px 14px;
  border-radius: 8px;
  border-left: 4px solid #8b5e3c;
  margin: 10px 0;
}

.admin-hint {
  color: var(--muted);
  font-style: italic;
  margin: 8px 0;
}

/* Admin appointments list & delete button */
#list ul { list-style:none; padding:0; max-width:820px; margin:16px auto; }
#list li {
  background: linear-gradient(180deg, rgba(255,255,255,0.98), rgba(255,250,250,0.92));
  padding:16px 20px;
  border-radius:14px;
  margin:12px 0;
  box-shadow:0 8px 22px var(--card-shadow);
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap: 14px;
  border: 1px solid rgba(248,200,220,0.4);
  transition: transform 0.18s ease;
}
#list li:hover { transform: translateY(-3px); }

.meta-wrapper { flex: 1; }
.title-row { font-size: 1.05rem; display:flex; align-items:center; gap: 8px; flex-wrap: wrap; }
.user-meta { color: var(--muted); margin-top: 6px; font-size: 0.95rem; }

.badge {
  padding: 3px 8px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}
.badge.slot { background: #e3f2fd; color: #0d47a1; }
.badge.appointment { background: #f3e5f5; color: #4a148c; }
.badge.status-booked { background: #e8f5e9; color: #1b5e20; }
.badge.status-available { background: #fff3e0; color: #e65100; }

.delete-btn {
  background: linear-gradient(135deg, #ff4d4f, #d9363e);
  color: #ffffff;
  border: none;
  padding: 8px 16px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 3px 8px rgba(217, 54, 62, 0.25);
}

.delete-btn:hover {
  background: linear-gradient(135deg, #d9363e, #b71c1c);
  transform: translateY(-2px);
  box-shadow: 0 5px 12px rgba(217, 54, 62, 0.35);
}

.admin-notice {
  text-align: center;
  padding: 20px;
  font-weight: 600;
  color: var(--muted);
}
.admin-notice.error { color: #d9534f; }

@media (max-width:600px) {
  form { margin:12px; padding:14px; }
  #list li { flex-direction:column; align-items:flex-start; }
  .calendar-grid { grid-template-columns:repeat(2, 1fr); }
}
/* Container & Main Layout */
.appointments-container {
  max-width: 900px;
  margin: 2rem auto;
  padding: 0 1.5rem;
  font-family: system-ui, -apple-system, sans-serif;
}

/* Week Navigation */
.week-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  padding: 0.75rem 1rem;
  background-color: #f8f9fa;
  border-radius: 8px;
}

.week-nav button {
  padding: 0.5rem 1rem;
  cursor: pointer;
}

/* Calendar Day Buttons Grid */
.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.calendar-grid button {
  padding: 0.75rem 0.5rem;
  border: 1px solid #e2e8f0;
  background-color: #ffffff;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.calendar-grid button.selected-day {
  background-color: #2563eb;
  color: #ffffff;
  border-color: #2563eb;
  font-weight: bold;
}

/* Slots Section & Grid */
.slots-area {
  margin-top: 1.5rem;
}

.slots-area h3 {
  margin-bottom: 1rem;
}

.slot-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.slot {
  padding: 0.75rem 1rem;
  border-radius: 6px;
  border: 1px solid transparent;
  font-size: 0.9rem;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.slot.available-slot {
  background-color: #ecfdf5;
  color: #065f46;
  border-color: #a7f3d0;
}

.slot.booked-slot {
  background-color: #fef2f2;
  color: #991b1b;
  border-color: #fecaca;
}

/* Admin Panel & Controls */
.admin-slot-panel {
  margin-top: 2.5rem;
  padding: 1.5rem;
  background-color: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
}

.duration-selector-bar {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 1rem;
  margin-bottom: 1.5rem;
}

.duration-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.duration-select {
  padding: 0.5rem;
  border-radius: 4px;
  border: 1px solid #cbd5e1;
}

.duration-create-btn {
  padding: 0.5rem 1rem;
  background-color: #0f172a;
  color: #ffffff;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

.admin-hint {
  margin-top: 1rem;
  color: #64748b;
  font-size: 0.9rem;
  font-style: italic;
}

.selected-slot-info {
  margin-top: 1rem;
  margin-bottom: 1rem;
  padding: 0.75rem;
  background-color: #e2e8f0;
  border-radius: 6px;
  font-weight: 500;
}

/* Admin Action Buttons */
.admin-slot-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}

.btn-admin-action {
  padding: 0.5rem 1rem;
  border: 1px solid #cbd5e1;
  border-radius: 4px;
  background-color: #ffffff;
  cursor: pointer;
}

.btn-admin-action.warning {
  background-color: #fef3c7;
  color: #92400e;
  border-color: #fde68a;
}

.btn-admin-action.danger {
  background-color: #fee2e2;
  color: #991b1b;
  border-color: #fca5a5;
}

/* Modal Overlay & Form */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.booking-card {
  background-color: #ffffff;
  padding: 2rem;
  border-radius: 8px;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.booking-card label {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-size: 0.9rem;
}

.booking-card input {
  padding: 0.5rem;
  border: 1px solid #cbd5e1;
  border-radius: 4px;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  margin-top: 1rem;
}

.form-message {
  color: #dc2626;
  font-size: 0.85rem;
  margin-top: 0.5rem;
}

/* Appointments calendar — LuxeDerma theme */
.appointments-intro {
  max-width: 620px;
  margin: -6px auto 8px;
  padding: 0 20px;
  text-align: center;
  color: var(--muted);
}

.appointments-container {
  max-width: 960px;
  margin: 26px auto 56px;
  padding: 0 20px;
  font-family: 'Segoe UI', sans-serif;
}

.upcoming-appointment {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  padding: 12px 16px;
  color: #175c37;
  background: linear-gradient(90deg, #e8f7ed, #f7fffa);
  border: 1px solid #9bd5ad;
  border-left: 5px solid #4b9b68;
  border-radius: 12px;
  box-shadow: 0 5px 15px rgba(44, 122, 70, .1);
}

.upcoming-appointment strong { color: #175c37; }
.upcoming-appointment span { color: #386549; }

.upcoming-appointment.no-appointment {
  color: var(--text-dark);
  background: #fff8fb;
  border-color: rgba(248, 200, 220, .9);
  border-left-color: var(--accent);
}

.upcoming-appointment.no-appointment strong,
.upcoming-appointment.no-appointment span { color: var(--text-dark); }

.upcoming-appointment.load-error {
  color: #8a3c2e;
  background: #fff1ed;
  border-color: #efb5a6;
  border-left-color: #c66a54;
}

.week-nav,
.slots-area,
.admin-slot-panel {
  background: linear-gradient(180deg, rgba(255,255,255,.96), rgba(255,249,251,.9));
  border: 1px solid rgba(248, 200, 220, .65);
  box-shadow: 0 8px 24px var(--card-shadow);
}

.week-nav {
  padding: 14px 16px;
  border-radius: 14px;
}

.week-nav strong {
  color: var(--text-dark);
  font-size: 1.05rem;
}

.week-nav button,
.duration-create-btn {
  background: linear-gradient(90deg, var(--grad-left), var(--grad-mid));
  color: var(--text-dark);
  border: 0;
  border-radius: 9px;
}

.calendar-grid {
  gap: 10px;
  margin: 20px 0;
}

.calendar-grid button {
  min-height: 62px;
  padding: 10px 7px;
  color: var(--text-dark);
  border: 1px solid rgba(139, 94, 60, .18);
  border-radius: 12px;
  background: rgba(255,255,255,.85);
  box-shadow: 0 3px 10px rgba(74, 44, 42, .06);
}

.calendar-grid button:hover {
  background: #fff4f8;
  border-color: rgba(139, 94, 60, .38);
}

.calendar-grid button.selected-day {
  color: #fff;
  background: linear-gradient(135deg, #8b5e3c, #b67a50);
  border-color: #8b5e3c;
  box-shadow: 0 7px 16px rgba(139, 94, 60, .25);
}

.slots-area {
  margin-top: 0;
  padding: 22px;
  border-radius: 16px;
}

.slots-area h3,
.admin-slot-panel h3 {
  margin-top: 0;
  color: var(--text-dark);
}

.slot-grid {
  margin-bottom: 4px;
  gap: 12px;
}

.slot {
  min-height: 68px;
  padding: 12px 14px;
  text-align: left;
  font-weight: 700;
  border-radius: 12px;
  box-shadow: none;
}

/* Available slots are deliberately neutral; booked slots are green. */
.slot.available-slot {
  color: var(--text-dark);
  background: #fff;
  border-color: rgba(139, 94, 60, .25);
}

.slot.available-slot:hover {
  background: #fff4f8;
  border-color: #d69ab1;
}

.slot.booked-slot {
  color: #175c37;
  background: #e8f7ed;
  border-color: #9bd5ad;
}

.slot.booked-slot:hover {
  background: #d9f1e1;
  border-color: #6eb98a;
}

.slot.my-appointment {
  color: #175c37;
  background: linear-gradient(135deg, #dff4e6, #f5fff8);
  border-color: #63ae7d;
  box-shadow: 0 5px 14px rgba(44, 122, 70, .16);
}

.slot.my-appointment:hover {
  background: #d2efdc;
  border-color: #3e9360;
}

.admin-slot-panel {
  margin-top: 22px;
  padding: 22px;
  border-radius: 16px;
}

.duration-select {
  color: var(--text-dark);
  border: 1px solid rgba(139, 94, 60, .3);
  border-radius: 9px;
  background: #fff;
}

.selected-slot-info {
  color: var(--text-dark);
  background: #fff5f8;
  border: 1px solid rgba(248, 200, 220, .8);
  border-left: 4px solid var(--accent);
  border-radius: 10px;
}

.btn-admin-action {
  color: var(--text-dark);
  border: 1px solid rgba(139, 94, 60, .25);
  border-radius: 9px;
  background: #fff;
}

.modal-overlay { background: rgba(74, 44, 42, .42); }

.booking-card {
  color: var(--text-dark);
  background: linear-gradient(180deg, #fff, #fff7fa);
  border: 1px solid rgba(248, 200, 220, .8);
  border-radius: 16px;
  box-shadow: 0 18px 45px rgba(74, 44, 42, .24);
}

.booking-card input {
  border-radius: 9px;
  border-color: rgba(139, 94, 60, .25);
}

@media (max-width: 600px) {
  html, body { width: 100%; overflow-x: hidden; }
  header { padding: 16px 12px 18px; }
  header h1 { font-size: 1.8rem; }
  header p { margin: 6px 0; }
  header nav {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    width: 100%;
    max-width: 420px;
    margin: 14px auto 0;
  }
  header nav a,
  header nav .nav-logout-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 0;
    min-height: 42px;
    box-sizing: border-box;
    margin: 0;
    padding: 9px 7px;
    overflow-wrap: anywhere;
    border: 1px solid rgba(74, 44, 42, .12);
    border-radius: 9px;
    background: rgba(255, 255, 255, .38);
  }
  header nav a:last-child:nth-child(odd) { grid-column: 1 / -1; }
  h2 { font-size: 1.35rem; }
  .appointments-intro { padding: 0 14px; line-height: 1.45; }
  .appointments-container { width: 100%; min-width: 0; box-sizing: border-box; margin: 18px auto 38px; padding: 0 12px; }
  .week-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; padding: 12px; }
  .week-nav strong { grid-column: 1 / -1; grid-row: 1; text-align: center; font-size: .95rem; }
  .week-nav button { grid-row: 2; padding: 10px 8px; }
  .calendar-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
  .calendar-grid button { min-width: 0; min-height: 54px; font-size: .88rem; }
  .upcoming-appointment { align-items: flex-start; flex-direction: column; gap: 3px; }
  .slots-area, .admin-slot-panel { min-width: 0; padding: 16px 12px; }
  .slot-grid { grid-template-columns: 1fr; }
  .slot { min-height: 58px; }
  .duration-selector-bar, .admin-slot-actions { align-items: stretch; flex-direction: column; }
  .duration-select, .duration-create-btn, .btn-admin-action { width: 100%; box-sizing: border-box; }
  .booking-card { width: calc(100% - 28px); padding: 20px; box-sizing: border-box; }
  .modal-actions { flex-direction: column-reverse; }
  .modal-actions button { width: 100%; }
}

@media (max-width: 360px) {
  header h1 { font-size: 1.55rem; }
  header nav { grid-template-columns: 1fr; }
  header nav a:last-child:nth-child(odd) { grid-column: auto; }
  .week-nav { grid-template-columns: 1fr; }
  .week-nav strong, .week-nav button { grid-column: auto; grid-row: auto; }
  .calendar-grid { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .menu-toggle {
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 46px;
    height: 42px;
    margin: 12px auto 0;
    padding: 0;
    background: rgba(255,255,255,.55);
    border: 1px solid rgba(74,44,42,.18);
    border-radius: 9px;
  }
  .menu-toggle span { width: 22px; height: 2px; margin: 0 auto; background: var(--text-dark); border-radius: 2px; }
  header:not(.nav-open) nav { display: none; }
  header.nav-open nav { display: flex; flex-direction: column; gap: 7px; margin-top: 12px; }
  header.nav-open nav a, header.nav-open nav .nav-logout-btn { width: 100%; min-height: 42px; }
}

@media (min-width: 601px) { .menu-toggle { display: none; } }