/* --- CSS Reset & Base Styles --- */
:root {
  --blue-600: #2563eb;
  --blue-500: hsl(217, 91%, 60%);
  --blue-700: #1d4ed8;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --white: #ffffff;
  --black: #000000;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1),
    0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1),
    0 8px 10px -6px rgb(0 0 0 / 0.1);
  --border-radius: 0.5rem; /* 8px */
  --border-radius-lg: 0.75rem; /* 12px */
}

/* Universal box-sizing for consistent layout */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* Base body styles for font and background */
body {
  font-family: "Inter", sans-serif;
  background-color: #f0f4f8;
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh; /* Ensure it takes full viewport height */
  padding: 1rem;
}

/* Inherit font for form elements */
button,
input,
select {
  font-family: inherit;
}

/* --- Utility Classes --- */
.hidden {
  display: none !important;
}

/* --- Main Layout --- */
.main-container {
  width: 100%;
  max-width: 80rem; /* max-w-5xl from Tailwind equivalent */
  margin: 0 auto;
}

.form-wrapper {
  background-color: rgba(255, 255, 255, 0.98); /* Adjusted transparency to be less transparent */
  backdrop-filter: blur(4px); /* Re-added blur effect */
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 1.5rem;
}

/* --- Navigation Tabs --- */
.nav-tabs {
  display: flex;
  flex-wrap: wrap; /* Allow tabs to wrap on smaller screens */
  align-items: center;
  justify-content: center; /* Center tabs on small screens */
  gap: 2rem;
  border-bottom: 1px solid var(--gray-200);
  padding-bottom: 1rem;
  margin-bottom: 1rem;
}

.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  color: var(--gray-600);
  background: none;
  border: none;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid transparent; /* For active tab indicator */
}

.nav-item:hover {
  color: var(--blue-500);
  border-bottom-color: var(--blue-500);
}

.nav-item.active {
  color: var(--blue-500);
  border-bottom-color: var(--blue-500);
}

/* Apply filter to SVG for active tab (changes color) */
.nav-item.active svg {
  filter: invert(48%) sepia(87%) saturate(2250%) hue-rotate(205deg)
    brightness(98%) contrast(92%);
}

.nav-item span {
  font-size: 0.875rem; /* text-sm */
  font-weight: 500; /* medium */
}

/* --- Tab Sections --- */
.tab-section {
  padding-top: 1rem;
}

/* --- Enquiry Form Grid (Base for all forms) --- */
.form-grid {
  display: grid;
  grid-template-columns: 1fr; /* Single column on mobile */
  gap: 1rem;
  align-items: flex-end; /* Align inputs at the bottom of their rows */
}

/* --- Form Elements --- */
.form-group {
  position: relative; /* Needed for autocomplete and popovers */
}

.form-label {
  display: block;
  font-size: 0.875rem; /* text-sm */
  font-weight: 500; /* medium */
  color: var(--gray-700);
  margin-bottom: 0.25rem;
}

.form-input,
.form-button,
.form-select {
  display: block;
  width: 100%;
  margin-top: 0.25rem;
  border-radius: var(--border-radius);
  border: 1px solid var(--gray-300);
  box-shadow: var(--shadow-sm);
  padding: 0.75rem;
  font-size: 1.125rem; /* text-lg */
  background-color: var(--white);
  color: var(--gray-800); /* Ensure input text color is visible */
}

.form-input {
  font-weight: 600; /* semibold */
}

/* Explicitly set color for form-button text for visibility */
.form-button {
  text-align: left; /* Align text to the left within buttons */
  cursor: pointer;
}

/* Specific color for the text inside the Passengers & Class button */
#passengers-summary {
  color: var(--gray-800); /* Dark gray text for visibility */
}


/* Focus styles for form elements */
.form-input:focus,
.form-button:focus,
.form-select:focus {
  outline: none;
  border-color: var(--blue-500);
  box-shadow: 0 0 0 1px var(--blue-500);
}

/* Style for disabled return date input */
.form-input.disabled-return {
  background-color: var(--gray-100);
  cursor: not-allowed;
}


/* --- Autocomplete List --- */
.autocomplete-list {
  position: absolute;
  z-index: 20; /* Ensure it appears above other elements */
  width: 100%;
  background: var(--white);
  border: 1px solid var(--gray-300);
  border-radius: 0.25rem; /* rounded-sm */
  max-height: 200px;
  overflow-y: auto;
  box-shadow: var(--shadow-sm); /* Added for better visual separation */
}

.autocomplete-list div {
  padding: 0.5rem;
  cursor: pointer;
  font-size: 1rem; /* Base text size for suggestions */
  color: var(--gray-800);
}

.autocomplete-list div:hover {
  background-color: #e0e7ff; /* blue-100 */
}

/* --- Popovers (Guests & Filters) --- */
.popover {
  position: absolute;
  z-index: 30; /* Higher than autocomplete */
  margin-top: 0.5rem;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-xl);
  padding: 1rem;
  color: var(--black); /* Set text color to black for popover content */
  width: 24rem; /* Fixed width for desktop popovers */
  max-width: 100%; /* Ensure it doesn't overflow its parent on small screens */
}

/* Specific positioning for Passengers and Rooms/Guests popovers on larger screens */
#passengers-popover,
#rooms-guests-popover,
#rooms-guests-popover-holidays {
  right: 0; /* Align right edge with parent for these popovers */
  left: auto; /* Override default left/center for right alignment */
}

#filters-popover {
  right: 0; /* Align to the right of its parent (for the filters button) */
  left: auto; /* Override left/center for right alignment */
}

/* Adjustments for the passenger count buttons to ensure visibility */
.passenger-btn,
.guest-btn {
  background-color: var(--blue-500); /* Changed to blue for clear visibility */
  color: var(--white); /* White text color */
}

.passenger-btn:disabled,
.guest-btn:disabled {
    background-color: var(--gray-400); /* Darker gray for disabled state */
    color: var(--gray-700); /* Darker text for disabled state */
    cursor: not-allowed;
}


/* --- Rooms & Guests Popover Specifics --- */
.room-editor {
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--gray-200);
}
.room-editor:last-child {
  border-bottom: none; /* No border for the last room */
}
.room-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}
.room-title {
  font-weight: 600; /* semibold */
  color: var(--gray-800);
  text-transform: uppercase;
  font-size: 0.95rem; /* Adjusted for better appearance */
}
.room-controls,
.passenger-controls {
  display: flex;
  gap: 1rem;
  align-items: flex-end; /* Align inputs at the bottom */
}
.guest-control,
.passenger-control {
  flex: 1; /* Distribute space evenly */
}
.guest-control-label,
.passenger-control-label {
  display: block;
  font-size: 0.875rem; /* text-sm */
  color: var(--gray-600);
  margin-bottom: 0.25rem;
}
.guest-control-label .details,
.passenger-control-label .details {
  font-size: 0.75rem; /* text-xs */
  color: var(--gray-500); /* Lighter color for details */
}
.guest-buttons,
.passenger-buttons {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}


.guest-count,
.passenger-count {
  font-size: 1.5rem;
  font-weight: 700; /* bold */
  width: 2rem; /* Fixed width to prevent jumping */
  text-align: center;
  display: inline-block;
  color: var(--gray-800);
}
.room-actions {
  margin-top: 0.5rem;
  display: flex;
  justify-content: flex-end; /* Align actions to the right */
}
.action-button,
.text-button {
  border: none;
  background: none;
  color: var(--blue-600);
  font-weight: 600; /* semibold */
  font-size: 0.875rem; /* text-sm */
  padding: 0.25rem 0.5rem; /* Added padding for better click area */
  cursor: pointer;
}

.room-summary {
  font-size: 1.125rem; /* text-lg */
  font-weight: 600; /* semibold */
  color: var(--gray-700);
  margin-top: 0.5rem; /* Space from controls */
}

.popover-footer {
  display: flex;
  flex-direction: column; /* Stack buttons on mobile */
  gap: 0.5rem;
  margin-top: 1rem;
}

.btn {
  padding: 0.75rem 0;
  border-radius: var(--border-radius-lg);
  font-weight: 700; /* bold */
  transition: background-color 0.2s, color 0.2s;
  cursor: pointer;
  border: none;
  font-size: 0.875rem; /* text-sm */
}

.btn-primary {
  background: linear-gradient(to right, var(--blue-500), var(--blue-600));
  color: var(--white);
}
.btn-primary:hover {
  background: linear-gradient(to right, var(--blue-600), var(--blue-700));
}

.btn-secondary {
  border: 1px solid var(--blue-500);
  color: var(--blue-600);
  background: var(--white);
}
.btn-secondary:hover {
  background-color: #eff6ff; /* blue-50 */
}

.info-alert {
  width: 100%;
  margin: 0.5rem 0;
  background-color: #fefce8; /* yellow-100 */
  color: #854d0e; /* yellow-800 */
  padding: 0.5rem;
  border-radius: 0.25rem;
  text-align: center;
  font-size: 0.875rem;
  display: none; /* Hidden by default, shown by JS */
}

/* --- Filters Popover --- */
.filter-group {
  margin-bottom: 1rem;
}
.filter-label {
  display: block;
  font-size: 0.875rem; /* text-sm */
  font-weight: 600; /* semibold */
  color: var(--gray-800);
  margin-bottom: 0.5rem;
}
.filter-label span {
  font-weight: 700; /* bold */
  color: var(--blue-600);
}
.filter-options {
  display: flex;
  gap: 1rem;
}
.filter-options label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.95rem; /* Slightly larger for readability */
  color: var(--gray-700);
}
.range-slider {
  width: 100%;
  height: 0.5rem;
  background: var(--gray-200);
  border-radius: 9999px; /* rounded-full */
  -webkit-appearance: none; /* Remove default webkit styles */
  appearance: none;
  cursor: pointer;
  outline: none;
}
.range-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  background: var(--white);
  border: 2px solid var(--blue-500);
  border-radius: 50%;
  cursor: pointer;
  margin-top: -8px; /* Adjust thumb position */
}
.range-slider::-moz-range-thumb {
  width: 20px;
  height: 20px;
  background: var(--white);
  border: 2px solid var(--blue-500);
  border-radius: 50%;
  cursor: pointer;
}
.range-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem; /* text-xs */
  color: var(--gray-500);
  margin-top: 0.25rem;
}

.btn-full {
  width: 100%;
  margin-top: 1rem;
}

/* --- Search Button --- */
.search-button-wrapper {
  display: flex;
  align-items: stretch; /* Stretch button to fill height */
}

.search-btn {
  width: 100%;
  height: 100%; /* Fill parent height */
  background: linear-gradient(to right, var(--blue-600), var(--blue-700));
  color: var(--white);
  font-weight: 700; /* bold */
  font-size: 1.125rem; /* text-lg */
  border-radius: var(--border-radius-lg);
  padding: 1rem;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 56px; /* Ensure a minimum height */
}
.search-btn:hover {
  background: linear-gradient(to right, var(--blue-700), #1e3a8a); /* Darker blue on hover */
}
.search-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

/* --- Modals --- */
.modal-overlay {
  position: fixed;
  inset: 0; /* Cover the entire viewport */
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50; /* Ensure it's on top of everything */
}
.modal-content {
  background-color: var(--white);
  padding: 2rem;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-xl);
  text-align: center;
  width: 100%;
  max-width: 28rem; /* max-w-md */
  margin: 1rem; /* Add margin for small screens */
}
.modal-title {
  font-size: 1.5rem; /* text-2xl */
  font-weight: 700; /* bold */
  margin-bottom: 1rem;
  color: var(--gray-800);
}
.modal-text {
  color: var(--gray-600);
  margin-bottom: 1rem;
}
.modal-form-group {
  margin-bottom: 1rem;
  text-align: left;
}
.btn-gray {
  background-color: var(--gray-200);
  color: var(--gray-700);
}
.btn-gray:hover {
  background-color: var(--gray-300);
}

/* --- Responsive Styles (Tailwind-like breakpoints) --- */
@media (min-width: 768px) {
  /* md breakpoint */
  .form-wrapper {
    padding: 2.5rem; /* Increased padding on larger screens */
  }
  .nav-tabs {
    justify-content: flex-start; /* Align tabs to the left */
  }
  .popover-footer {
    flex-direction: row; /* Buttons side-by-side */
  }
  .popover-footer .btn {
    flex: 1; /* Distribute space evenly */
  }
  .form-grid.flights-grid {
    grid-template-columns: repeat(6, 1fr); /* Changed to 6 columns for flights */
  }
  .form-grid.hotels-grid {
    grid-template-columns: repeat(9, 1fr); /* 9 columns for hotels */
  }
  .form-grid.visa-grid,
  .form-grid.insurance-grid {
    grid-template-columns: repeat(6, 1fr); /* 6 columns for visa/insurance */
  }
  /* Column spans for medium screens */
  .md-col-span-1 { grid-column: span 1 / span 1; }
  .md-col-span-2 { grid-column: span 2 / span 2; }
  .md-col-span-3 { grid-column: span 3 / span 3; }
  .md-col-span-4 { grid-column: span 4 / span 4; }
  .md-col-span-5 { grid-column: span 5 / span 5; }
  .md-col-span-6 { grid-column: span 6 / span 6; }
  .md-col-span-7 { grid-column: span 7 / span 7; }
  .md-col-span-8 { grid-column: span 8 / span 8; }
  .md-col-span-9 { grid-column: span 9 / span 9; }
  .md-col-span-10 { grid-column: span 10 / span 10; }
}

@media (min-width: 1024px) {
  /* lg breakpoint */
  .form-grid.holidays-grid {
    grid-template-columns: repeat(10, 1fr); /* 10 columns for holidays */
  }
  /* Column spans for large screens */
  .lg-col-span-1 { grid-column: span 1 / span 1; }
  .lg-col-span-2 { grid-column: span 2 / span 2; }
  .lg-col-span-3 { grid-column: span 3 / span 3; }
  .lg-col-span-4 { grid-column: span 4 / span 4; }
  .lg-col-span-5 { grid-column: span 5 / span 5; }
  .lg-col-span-6 { grid-column: span 6 / span 6; }
  .lg-col-span-7 { grid-column: span 7 / span 7; }
  .lg-col-span-8 { grid-column: span 8 / span 8; }
  .lg-col-span-9 { grid-column: span 9 / span 9; }
  .lg-col-span-10 { grid-column: span 10 / span 10; }
}

/* Responsive adjustment for popover positioning on small screens (up to 767px) */
@media (max-width: 767px) {
  .popover {
    left: 50%; /* Center horizontally */
    transform: translateX(-50%); /* Adjust for true centering */
    width: calc(100% - 2rem); /* Full width minus padding, preventing overflow */
    max-width: 24rem; /* Retain max-width */
    right: auto; /* Ensure no conflicting right:0 on small screens */
  }
  /* For filters popover on small screens, centering is preferred and already handled by .popover rule */
  #filters-popover {
    /* No additional rules needed here as .popover general rule will apply */
  }
}