/* CSS Variables for theming */
:root {
    --bg-color: #ffffff;
    --text-color: #333333;
    --border-color: #e0e0e0;
    --card-bg: #ffffff;
    --input-border: #cccccc;
    --button-bg: #111827;
    --button-text: #ffffff;
    --hover-bg: #f9fafb;
    --selected-bg: #f3f4f6;
    --price-color: #059669;
    --placeholder-color: #9ca3af;
}

/* Dark mode */
[data-theme="dark"] {
    --bg-color: #121212;
    --text-color: #e0e0e0;
    --border-color: #333333;
    --card-bg: #1e1e1e;
    --input-border: #444444;
    --button-bg: #2d3748;
    --button-text: #ffffff;
    --hover-bg: #2d3748;
    --selected-bg: #374151;
    --price-color: #10b981;
    --placeholder-color: #6b7280;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    color: var(--text-color);
    transition: background-color 0.3s ease, color 0.3s ease;
}

.booking-container {
    display: flex;
    background-color: var(--card-bg);
    border-radius: 8px;
    /* shadow removed */
    width: 900px;
    max-width: 95%;
    border: 1px solid var(--border-color);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.details-panel { flex: 1; padding: 40px; border-right: 1px solid var(--border-color); transition: border-color 0.3s ease; }
.details-panel h2 { font-size: 24px; margin-top: 0; color: var(--text-color); }
.details-panel p { color: var(--placeholder-color); margin-bottom: 20px; }
.host-info { display: flex; align-items: center; margin-top: 30px; }
.host-info img { width:32px; height:32px; border-radius: 50%; margin-right: 15px; }
.host-info .host-label { font-size: 14px; color: var(--placeholder-color); margin: 0; }
.host-info #host-name { font-weight: 500; color: var(--text-color); margin: 0; }
.form-panel { flex: 1.5; padding: 40px; }
.form-panel h3 { font-size: 16px; font-weight: 500; margin-top: 20px; margin-bottom: 8px; color: var(--text-color); }
.form-panel h3:first-child { margin-top: 0; }

input[type="text"], input[type="email"], input[type="tel"] {
    width: 100%; 
    padding: 12px; 
    border: 1px solid var(--input-border); 
    border-radius: 4px; 
    box-sizing: border-box; 
    font-size: 14px;
    background-color: var(--card-bg);
    color: var(--text-color);
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

#slots-container { border: 1px solid var(--input-border); border-radius: 4px; padding: 10px; max-height: 250px; overflow-y: auto; }
.slot { display: flex; justify-content: space-between; align-items: center; padding: 10px; border-bottom: 1px solid var(--border-color); }
.slot:last-child { border-bottom: none; }
.slot button { background-color: var(--button-bg); color: var(--button-text); border: none; padding: 8px 16px; border-radius: 4px; cursor: pointer; font-weight: 500; transition: background-color 0.3s ease; }
.slot button:hover { background-color: var(--hover-bg); }
.slot-placeholder { text-align: center; color: var(--placeholder-color); padding: 20px; }
.hidden { display: none; }
#success-message { text-align: center; padding: 50px 0; }
#success-message h2 { color: #28a745; }

/* v2 layout - single column */
.v2-grid { display: block; max-width: 540px; margin: 0 auto; }
#calendar-container { border: 1px solid var(--border-color); border-radius: 10px; padding: 10px; background: var(--card-bg); margin-bottom: 14px; transition: background-color 0.3s ease, border-color 0.3s ease; }
.flatpickr-calendar.inline { box-shadow: none; width: 100%; margin: 0; padding: 0 !important; }
.flatpickr-calendar.inline .flatpickr-innerContainer { width: 100%; }
.flatpickr-calendar.inline .flatpickr-weekdays { 
  width: 100%; margin: 0 !important; padding: 0 !important; 
  display: block !important;
}
.flatpickr-calendar.inline .flatpickr-months { width: 100% !important; margin: 0 0 8px 0 !important; padding: 0 !important; }
.flatpickr-calendar.inline .flatpickr-months .flatpickr-month { flex: 1 1 auto; min-width: 0; }
.flatpickr-calendar.inline .flatpickr-current-month { font-size: 15px; }
.flatpickr-calendar.inline .flatpickr-weekdaycontainer .flatpickr-weekday { font-size: 12px; }
.flatpickr-calendar.inline .dayContainer { 
  display: grid !important; 
  grid-template-columns: repeat(7, minmax(0, 1fr)) !important; 
  width: 100% !important; 
  max-width: none !important;
  min-width: 0 !important;
  padding: 0 !important;
  column-gap: 0 !important;
  row-gap: 4px !important;
  margin: 0 !important;
  justify-items: stretch !important;
  align-items: stretch !important;
}
.flatpickr-calendar.inline .flatpickr-weekdaycontainer { 
  display: grid !important; 
  grid-template-columns: repeat(7, minmax(0, 1fr)) !important; 
  width: 100% !important; 
  column-gap: 0 !important;
  justify-items: stretch !important;
}
.flatpickr-calendar.inline .flatpickr-day { 
  min-width: unset !important; 
  max-width: none !important;
  width: 100% !important; 
  margin: 0 !important; 
  padding: 0 !important;
  height: 42px !important; /* fixed height for lighter density */
  aspect-ratio: auto !important; /* override previous square sizing */
  border: 0 !important;
  border-radius: 8px;
  font-size: 13px; /* slightly smaller for refinement */
}
/* Flatpickr dark mode support */
[data-theme="dark"] .flatpickr-calendar {
  background: var(--card-bg);
  color: var(--text-color);
  box-shadow: none;
}

[data-theme="dark"] .flatpickr-months .flatpickr-month,
[data-theme="dark"] .flatpickr-weekdays,
[data-theme="dark"] .flatpickr-weekday,
[data-theme="dark"] .flatpickr-days,
[data-theme="dark"] .flatpickr-day {
  background: var(--card-bg);
  color: var(--text-color);
  border-color: var(--border-color);
}

[data-theme="dark"] .flatpickr-day:hover:not(.flatpickr-disabled):not(.selected) {
  background: var(--hover-bg);
  color: var(--text-color);
}

[data-theme="dark"] .flatpickr-day.flatpickr-disabled,
[data-theme="dark"] .flatpickr-day.flatpickr-disabled:hover {
  color: var(--placeholder-color);
  opacity: 0.35;
}

[data-theme="dark"] .flatpickr-current-month .flatpickr-monthDropdown-months,
[data-theme="dark"] .flatpickr-current-month input.cur-year {
  color: var(--text-color);
  background: var(--card-bg);
}

[data-theme="dark"] .flatpickr-months .flatpickr-prev-month svg,
[data-theme="dark"] .flatpickr-months .flatpickr-next-month svg {
  fill: var(--text-color);
}

[data-theme="dark"] .flatpickr-months .flatpickr-prev-month:hover svg,
[data-theme="dark"] .flatpickr-months .flatpickr-next-month:hover svg {
  fill: var(--text-color);
}

[data-theme="dark"] .flatpickr-weekday {
  color: var(--placeholder-color);
}

.flatpickr-day.selected, .flatpickr-day.startRange, .flatpickr-day.endRange { background: var(--button-bg) !important; color: var(--button-text) !important; border-color: var(--button-bg) !important; }
.flatpickr-day.flatpickr-disabled { opacity: 0.35; cursor: not-allowed; }
.flatpickr-day:hover:not(.flatpickr-disabled):not(.selected) { background: var(--hover-bg); }
.flatpickr-day.today.selected { background: var(--button-bg) !important; color: var(--button-text) !important; }

/* Ensure Flatpickr fills width without right-side empty space */
.flatpickr-calendar.inline * { box-sizing: border-box; }
.flatpickr-calendar.inline .flatpickr-rContainer { width: 100% !important; }
.flatpickr-calendar.inline .flatpickr-days { 
  width: 100% !important; 
  max-width: none !important;
  display: grid !important; 
  grid-template-columns: 1fr !important; 
  gap: 0 !important; 
  padding: 0 !important; 
  margin: 0 !important; 
  overflow: hidden !important;
}
.flatpickr-calendar.inline .flatpickr-days .dayContainer { grid-column: 1 / -1; }
.flatpickr-calendar.inline .flatpickr-weekdaycontainer .flatpickr-weekday { text-align: center; }
.flatpickr-calendar.inline .flatpickr-weekdaycontainer .flatpickr-weekday { padding: 0 !important; }
.flatpickr-calendar.inline .dayContainer { grid-auto-rows: 1fr; }
.flatpickr-calendar.inline .flatpickr-day {
  display: flex; align-items: center; justify-content: center;
  aspect-ratio: 1 / 1; /* keep squares in the 7-col grid */
}

#timezone-label { margin-bottom: 16px; color: var(--placeholder-color); font-size: 12px; text-align: center; }
#slots-header { margin-bottom: 10px; }
#slots-header h3 { margin: 0 0 4px 0; font-size: 16px; color: var(--text-color); }
#selected-date-label { color: var(--placeholder-color); font-size: 13px; }

/* Slots panel - 4 column grid */
#slots-container { background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 10px; padding: 16px; min-height: 120px; transition: background-color 0.3s ease, border-color 0.3s ease; }
#slots-container { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
#slots-container .slot { display: block; padding: 0; border: none; }
#slots-container .slot button { width: 100%; background-color: var(--button-bg); color: var(--button-text); border: none; padding: 14px 8px; border-radius: 8px; cursor: pointer; font-weight: 500; font-size: 14px; transition: background-color 0.3s ease; }
#slots-container .slot button:hover { background-color: var(--hover-bg); }
#slots-container .slot.selected button { background: var(--selected-bg); box-shadow: 0 0 0 2px var(--button-bg); }

/* v2 confirm button - match slot button visuals, auto width, min-height 48px */
#kb-confirm-btn-v2 {
  display: inline-block;
  background-color: var(--button-bg);
  color: var(--button-text);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 500;
  font-size: 14px;
  padding: 12px 16px; /* vertical padding + line-height yields >= 48px */
  min-height: 48px;
  width: auto; /* fit to text */
  transition: background-color 0.3s ease;
}
#kb-confirm-btn-v2:hover { background-color: var(--hover-bg); }
#kb-confirm-btn-v2:disabled { opacity: 0.6; cursor: not-allowed; }

/* Subtle shimmer loading effect */
@keyframes kbShimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

#kb-confirm-btn-v2.loading {
  position: relative;
  color: var(--button-text);
  pointer-events: none;
  background: linear-gradient(90deg, var(--button-bg) 25%, var(--hover-bg) 37%, var(--button-bg) 63%);
  background-size: 300% 100%;
  animation: kbShimmer 1.6s ease-in-out infinite;
}

/* Empty state */
#slots-container .slot-placeholder { grid-column: 1 / -1; text-align: center; color: var(--placeholder-color); padding: 40px 20px; font-size: 14px; }

/* Service selection styles - Left sidebar */
#services-sidebar { margin: 20px 0; }
#services-sidebar h3 { margin: 0 0 12px 0; font-size: 16px; font-weight: 600; color: var(--text-color); }
#services-list { display: grid; grid-template-columns: 1fr; gap: 8px; }
#services-list .service { display: block; padding: 0; border: none; }
#services-list .service button { 
  width: 100%; 
  background-color: var(--card-bg); 
  color: var(--text-color); 
  border: 1px solid var(--border-color); 
  padding: 12px; 
  border-radius: 8px; 
  cursor: pointer; 
  font-weight: 500; 
  font-size: 13px; 
  text-align: left;
  display: block;
  transition: all 0.2s;
}
#services-list .service button:hover { background-color: var(--hover-bg); }
#services-list .service.selected button { background: var(--selected-bg); color: var(--text-color); border-color: var(--border-color); }
#services-list .service-name { font-weight: 600; margin-bottom: 2px; display: block; }
#services-list .service-details { font-size: 11px; color: var(--placeholder-color); display: flex; justify-content: space-between; margin-top: 4px; }
#services-list .service.selected .service-details { color: var(--placeholder-color); }
#services-list .service-price { font-weight: 600; color: var(--price-color); }
#services-list .service.selected .service-price { color: var(--price-color); }
#services-list .service-placeholder { text-align: center; color: var(--placeholder-color); padding: 20px 10px; font-size: 13px; }

/* Calendar disabled state for service calendars */
.calendar-disabled { opacity: 0.5; pointer-events: none; }
.calendar-disabled-message { text-align: center; color: var(--placeholder-color); font-size: 14px; margin-bottom: 16px; padding: 12px; background: var(--hover-bg); border-radius: 8px; border: 1px dashed var(--border-color); }

/* Iframe-specific responsive styles */
body.iframe-embed {
  padding: 10px !important;
  margin: 0 !important;
  min-height: calc(100vh - 20px) !important;
  width: calc(100vw - 20px) !important;
  background: transparent !important;
  display: flex !important;
  flex-direction: column !important;
  box-sizing: border-box !important;
}

body.iframe-embed .booking-container {
  flex: 1 !important;
  min-height: 500px !important;
  min-width: 300px !important;
  width: 100% !important;
  height: auto !important;
  box-shadow: none !important;
  margin: 0 !important;
}

/* Dynamic iframe layout adjustments */
@media (max-width: 767px) {
  body.iframe-embed .booking-container {
    flex-direction: column !important;
  }
  
  body.iframe-embed .details-panel {
    border-right: none !important;
    border-bottom: 1px solid var(--border-color) !important;
    padding: 15px !important;
    flex: none !important;
  }
  
  body.iframe-embed .form-panel {
    padding: 15px !important;
    flex: 1 !important;
  }
}

@media (max-width: 479px) {
  body.iframe-embed .details-panel,
  body.iframe-embed .form-panel {
    padding: 12px !important;
  }
  
  body.iframe-embed #slots-container {
    grid-template-columns: repeat(2, 1fr) !important;
  }
}

@media (min-width: 480px) and (max-width: 599px) {
  body.iframe-embed #slots-container {
    grid-template-columns: repeat(3, 1fr) !important;
  }
}

@media (min-width: 600px) {
  body.iframe-embed #slots-container {
    grid-template-columns: repeat(4, 1fr) !important;
  }
}

/* Responsive */
@media (max-width: 768px) {
  /* Container stacks for mobile/tablet without affecting desktop */
  .booking-container:not(.iframe-embed) { width: 100%; margin: 10px; flex-direction: column; }
  .details-panel { padding: 20px; border-right: none; border-bottom: 1px solid #e5e7eb; }
  .form-panel { padding: 20px; }

  /* Calendar section fills width but remains compact */
  .v2-grid { max-width: 100%; }
  #calendar-container { padding: 8px; border-radius: 10px; margin-bottom: 12px; }
  .flatpickr-calendar.inline .flatpickr-current-month { font-size: 14px; }
  .flatpickr-calendar.inline .flatpickr-weekdaycontainer .flatpickr-weekday { font-size: 12px; }
  .flatpickr-calendar.inline .dayContainer { row-gap: 3px !important; }
  .flatpickr-calendar.inline .flatpickr-day { height: 38px !important; font-size: 12px; }
  #timezone-label { margin-bottom: 12px; font-size: 11px; }

  /* Slots grid: 3 columns on tablets */
  #slots-container { grid-template-columns: repeat(3, 1fr); gap: 8px; padding: 14px; }
  #slots-container .slot button { padding: 12px 6px; font-size: 13px; }
  
  /* Service selection responsive */
  #services-list .service button { padding: 10px; font-size: 12px; }
  #services-list .service-name { font-size: 13px; }
  #services-list .service-details { font-size: 10px; }
}
@media (max-width: 480px) {
  /* Very small devices: tighter layout */
  #slots-container { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  #slots-container .slot button { padding: 10px 6px; font-size: 12.5px; }
  
  /* Service selection mobile */
  #services-list .service button { padding: 8px; font-size: 11px; }
  #services-list .service-name { font-size: 12px; }
  #services-list .service-details { font-size: 9px; }
  .flatpickr-calendar.inline .flatpickr-current-month { font-size: 13.5px; }
  .flatpickr-calendar.inline .flatpickr-weekdaycontainer .flatpickr-weekday { font-size: 11px; }
  .flatpickr-calendar.inline .flatpickr-day { height: 34px !important; font-size: 12px; }
  #calendar-container { padding: 8px; border-radius: 8px; }
  #slots-header h3 { font-size: 15px; }
}