/**
 * ATR Appointments – Public UI Styles
 * Mobile-first, accessible, and themeable via CSS variables.
 * Override variables on .atr-appointments-booking to customize.
 */

.atr-appointments-booking {
  /* Theme tokens (override these in your theme/Customizer) */
  --atr-font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "Noto Sans Hebrew", sans-serif;
  --atr-font-size: 16px;
  --atr-line-height: 1.5;

  --atr-color-bg: #ffffff;
  --atr-color-surface: #ffffff;
  --atr-color-text: #111827; /* gray-900 */
  --atr-color-muted: #6b7280; /* gray-500 */
  --atr-color-border: #e5e7eb; /* gray-200 */
  --atr-color-primary: #0ea5e9; /* sky-500 */
  --atr-color-primary-hover: #0284c7; /* sky-600 */
  --atr-color-primary-contrast: #ffffff;
  --atr-color-focus: #2563eb; /* blue-600 */

  --atr-radius: 10px;
  --atr-radius-sm: 8px;
  --atr-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);

  --atr-spacing-1: 4px;
  --atr-spacing-2: 8px;
  --atr-spacing-3: 12px;
  --atr-spacing-4: 16px;
  --atr-spacing-6: 24px;
  --atr-spacing-8: 32px;

  color: var(--atr-color-text);
  font-family: var(--atr-font-family);
  font-size: var(--atr-font-size);
  line-height: var(--atr-line-height);
  background: var(--atr-color-bg);
  display: block;
  max-width: 920px;
  margin: 0 auto var(--atr-spacing-6);
}

.atr-appointments-booking * { box-sizing: border-box; }

.atr-appointments-booking h3 {
  margin: 0 0 var(--atr-spacing-3) 0;
  font-size: 1.25rem;
}

.atr-appointments-loading {
  padding: var(--atr-spacing-4);
  color: var(--atr-color-muted);
}

.atr-appt-form,
.atr-appt-details {
  background: var(--atr-color-surface);
  border: 1px solid var(--atr-color-border);
  border-radius: var(--atr-radius);
  padding: var(--atr-spacing-4);
  box-shadow: var(--atr-shadow);
}

.atr-appt-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--atr-spacing-3);
  margin-bottom: var(--atr-spacing-3);
}

@media (min-width: 640px) {
  .atr-appt-row { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .atr-appt-row > label { grid-column: span 1; align-self: center; }
}

.atr-appointments-booking label {
  font-size: 0.875rem;
  color: var(--atr-color-muted);
}

.atr-appointments-booking select,
.atr-appointments-booking input[type="date"],
.atr-appointments-booking input[type="text"],
.atr-appointments-booking input[type="email"],
.atr-appointments-booking input[type="tel"] {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--atr-color-border);
  border-radius: var(--atr-radius-sm);
  background: var(--atr-color-surface);
  color: var(--atr-color-text);
  transition: border-color .15s ease, box-shadow .15s ease, background-color .15s ease, color .15s ease;
}

.atr-appointments-booking select:focus,
.atr-appointments-booking input:focus {
  outline: none;
  border-color: var(--atr-color-focus);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.25);
}

/* Placeholder/readability */
.atr-appointments-booking input::placeholder {
  color: var(--atr-color-muted);
  opacity: .9;
}

/* Buttons */
.atr-appointments-booking .button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 14px;
  border: 1px solid var(--atr-color-border);
  background: #ffffff;
  color: var(--atr-color-text);
  border-radius: 9999px; /* pill */
  cursor: pointer;
  transition: color .15s ease, background-color .15s ease, border-color .15s ease, box-shadow .15s ease;
}

.atr-appointments-booking .button:hover {
  border-color: #cbd5e1; /* gray-300 */
  background: #f8fafc;   /* slate-50 */
}

.atr-appointments-booking .button:focus-visible {
  outline: none;
  border-color: var(--atr-color-focus);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.25);
}

.atr-appointments-booking .button-primary {
  background: var(--atr-color-primary);
  border-color: var(--atr-color-primary);
  color: var(--atr-color-primary-contrast);
}

.atr-appointments-booking .button-primary:hover {
  background: var(--atr-color-primary-hover);
  border-color: var(--atr-color-primary-hover);
}

/* Chips (time-of-day shortcuts) */
.atr-appt-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--atr-spacing-2);
  margin: var(--atr-spacing-3) 0;
}

.atr-appt-chips .button { padding: 8px 12px; border-radius: 9999px; }

/* Slots */
.atr-appt-results { margin-top: var(--atr-spacing-4); }

.atr-appt-slotlist {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--atr-spacing-2);
}

@media (min-width: 480px) { .atr-appt-slotlist { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (min-width: 768px) { .atr-appt-slotlist { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
@media (min-width: 1024px) { .atr-appt-slotlist { grid-template-columns: repeat(5, minmax(0, 1fr)); } }

.atr-appt-slotlist .button { white-space: nowrap; }

/* Details form after selecting a slot */
.atr-appt-details { display: grid; gap: var(--atr-spacing-3); margin-top: var(--atr-spacing-3); }
.atr-appt-details p { margin: 0; color: var(--atr-color-muted); }

/* Misc */
.atr-appointments-booking .atr-appointments-loading { color: var(--atr-color-muted); }

/* RTL: inherit page direction, keep visuals consistent */
[dir="rtl"] .atr-appointments-booking .button { letter-spacing: .2px; }

/*
 * Theme variants (override CSS variables per theme)
 * Usage: [atr_appointments_booking theme="sky"], theme="emerald", theme="rose", theme="dark"
 */

.atr-appointments-booking.atr-theme-sky {
  --atr-color-primary: #0ea5e9;
  --atr-color-primary-hover: #0284c7;
  --atr-color-focus: #2563eb;
  --atr-radius: 10px;
  --atr-shadow: 0 2px 10px rgba(0,0,0,0.08);
}

.atr-appointments-booking.atr-theme-emerald {
  --atr-color-primary: #10b981;
  --atr-color-primary-hover: #059669;
  --atr-color-focus: #16a34a;
  --atr-radius: 12px;
  --atr-shadow: 0 2px 12px rgba(0,0,0,0.08);
}

.atr-appointments-booking.atr-theme-rose {
  --atr-color-primary: #e11d48;
  --atr-color-primary-hover: #be123c;
  --atr-color-focus: #f43f5e;
  --atr-radius: 8px;
  --atr-shadow: 0 1px 8px rgba(0,0,0,0.10);
}

.atr-appointments-booking.atr-theme-dark {
  --atr-color-bg: #0f172a;         /* slate-900 */
  --atr-color-surface: #0b1220;    /* deep panel */
  --atr-color-text: #e5e7eb;       /* gray-200 */
  --atr-color-muted: #9ca3af;      /* gray-400 */
  --atr-color-border: #1f2937;     /* gray-800 */
  --atr-color-primary: #60a5fa;    /* blue-400 */
  --atr-color-primary-hover: #3b82f6; /* blue-500 */
  --atr-color-primary-contrast: #0b1220;
  --atr-color-focus: #93c5fd;      /* blue-300 */
  --atr-shadow: 0 2px 16px rgba(0,0,0,0.35);
}

/* clarity-dark theme based on provided tokens */
.atr-appointments-booking.atr-theme-clarity-dark {
  --atr-font-family: Inter, system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
  --atr-font-size: 16px;
  --atr-line-height: 1.5;

  /* Hint browsers to render native controls in dark style */
  color-scheme: dark;

  --atr-color-bg: #0F141A;
  --atr-color-surface: #161B22;
  --atr-color-text: #E5E7EB;
  --atr-color-muted: #9CA3AF;
  --atr-color-border: #2A2F36;
  --atr-color-primary: #7C3AED;
  --atr-color-primary-hover: #6D28D9;
  --atr-color-primary-contrast: #FFFFFF;
  --atr-color-focus: #A78BFA;

  --atr-radius: 10px;
  --atr-radius-sm: 8px;
  --atr-shadow: 0 6px 24px rgba(0,0,0,0.50);

  --atr-spacing-1: 4px;
  --atr-spacing-2: 8px;
  --atr-spacing-3: 12px;
  --atr-spacing-4: 16px;
  --atr-spacing-6: 24px;
  --atr-spacing-8: 32px;
}

/* clarity-dark: improve native picker/icons visibility */
.atr-appointments-booking.atr-theme-clarity-dark input[type="date"]::-webkit-calendar-picker-indicator,
.atr-appointments-booking.atr-theme-clarity-dark input[type="time"]::-webkit-calendar-picker-indicator {
  filter: invert(85%);
}

/* clarity-light theme based on provided tokens */
.atr-appointments-booking.atr-theme-clarity-light {
  --atr-font-family: Inter, system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
  --atr-font-size: 16px;
  --atr-line-height: 1.5;

  --atr-color-bg: #FFFFFF;
  --atr-color-surface: #FFFFFF;
  --atr-color-text: #111827;
  --atr-color-muted: #6B7280;
  --atr-color-border: #E5E7EB;
  --atr-color-primary: #2563EB;
  --atr-color-primary-hover: #1E40AF;
  --atr-color-primary-contrast: #FFFFFF;
  --atr-color-focus: #2563EB;

  --atr-radius: 10px;
  --atr-radius-sm: 8px;
  --atr-shadow: 0 2px 10px rgba(0,0,0,0.06);

  --atr-spacing-1: 4px;
  --atr-spacing-2: 8px;
  --atr-spacing-3: 12px;
  --atr-spacing-4: 16px;
  --atr-spacing-6: 24px;
  --atr-spacing-8: 32px;
}

/* clarity-light: outline style for the Find Slots button only */
.atr-appointments-booking.atr-theme-clarity-light .button-find-slots {
  background: #ffffff;
  color: var(--atr-color-primary);
  border-color: var(--atr-color-primary);
}
.atr-appointments-booking.atr-theme-clarity-light .button-find-slots:hover {
  background: var(--atr-color-primary);
  color: var(--atr-color-primary-contrast);
  border-color: var(--atr-color-primary-hover);
}

/* Optional: respect system dark mode as a base (users can still override with theme="...") */
@media (prefers-color-scheme: dark) {
  .atr-appointments-booking:not([class*="atr-theme-"]) {
    --atr-color-bg: #0f172a;
    --atr-color-surface: #0b1220;
    --atr-color-text: #e5e7eb;
    --atr-color-muted: #9ca3af;
    --atr-color-border: #1f2937;
    --atr-shadow: 0 2px 16px rgba(0,0,0,0.35);
  }
}