/* ==========================================================================
   components.css — Reusable UI primitives
   Buttons, forms, cards, badges, tabs, accordion, slider, pagination, alerts.
   ========================================================================== */

/* ---------------------------------------------------------------- Buttons */
.btn {
  --btn-bg: var(--green-600);
  --btn-fg: #fff;
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  line-height: 1;
  letter-spacing: .005em;
  padding: 12px 22px;
  border: 1px solid transparent;
  border-radius: var(--r-sm);
  background: var(--btn-bg);
  color: var(--btn-fg);
  cursor: pointer;
  overflow: hidden;
  white-space: nowrap;
  transition: background var(--t) var(--ease), transform var(--t-fast) var(--ease),
              box-shadow var(--t) var(--ease), border-color var(--t) var(--ease);
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn:focus-visible { outline: none; box-shadow: var(--focus-ring); }
.btn svg { width: 18px; height: 18px; flex: none; }

.btn--primary { --btn-bg: var(--green-600); box-shadow: var(--sh-action); }
.btn--primary:hover { --btn-bg: var(--green-700); box-shadow: 0 10px 24px rgba(79,70,229,.34); }

.btn--navy { --btn-bg: var(--navy-800); box-shadow: 0 8px 20px rgba(10,42,74,.24); }
.btn--navy:hover { --btn-bg: var(--navy-700); }

.btn--outline {
  --btn-bg: transparent;
  --btn-fg: var(--navy-800);
  border-color: var(--border-strong);
  box-shadow: var(--sh-xs);
}
.btn--outline:hover { border-color: var(--navy-800); background: var(--surface-2); }

.btn--ghost {
  --btn-bg: transparent; --btn-fg: var(--navy-800);
  padding: 10px 14px;
}
.btn--ghost:hover { background: var(--surface-3); }

.btn--on-dark {
  --btn-bg: rgba(255,255,255,.08);
  --btn-fg: #fff;
  border-color: rgba(255,255,255,.28);
  backdrop-filter: blur(4px);
}
.btn--on-dark:hover { --btn-bg: rgba(255,255,255,.16); border-color: rgba(255,255,255,.5); }

.btn--lg { padding: 15px 30px; font-size: var(--fs-base); border-radius: var(--r-md); }
.btn--sm { padding: 9px 16px; font-size: var(--fs-xs); }
.btn--block { width: 100%; }
.btn:disabled, .btn[aria-disabled="true"] { opacity: .55; cursor: not-allowed; transform: none; }

/* Ripple element injected by app.js */
.ripple {
  position: absolute;
  border-radius: 50%;
  transform: scale(0);
  background: rgba(255,255,255,.45);
  pointer-events: none;
  animation: ripple .6s var(--ease-out);
}
.btn--outline .ripple, .btn--ghost .ripple { background: rgba(10,42,74,.14); }

/* ---------------------------------------------------------------- Links */
.link {
  color: var(--green-700);
  font-weight: var(--fw-semibold);
  text-decoration: none;
  transition: color var(--t-fast);
}
.link:hover { color: var(--green-800); text-decoration: underline; text-underline-offset: 3px; }
.link--muted { color: var(--text-muted); font-weight: var(--fw-medium); }
.link--muted:hover { color: var(--navy-800); }

/* ---------------------------------------------------------------- Forms */
.field { display: flex; flex-direction: column; gap: 6px; }
.field__label {
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  color: var(--text-muted);
  letter-spacing: .01em;
}
.field__label .req { color: var(--danger); margin-left: 2px; }
.field__hint { font-size: var(--fs-xs); color: var(--text-soft); }
.field__error { font-size: var(--fs-xs); color: var(--danger); display: none; }
.field.is-invalid .field__error { display: block; }
.field.is-invalid .input, .field.is-invalid .select { border-color: var(--danger); box-shadow: 0 0 0 3px rgba(220,38,38,.12); }

.input, .select, .textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-sm);
  padding: 12px 14px;
  transition: border-color var(--t-fast), box-shadow var(--t-fast), background var(--t-fast);
  appearance: none;
}
.input::placeholder, .textarea::placeholder { color: var(--text-soft); }
.input:hover, .select:hover, .textarea:hover { border-color: #C3CCD8; }
.input:focus, .select:focus, .textarea:focus {
  outline: none;
  border-color: var(--green-600);
  box-shadow: var(--focus-ring);
  background: var(--surface);
}
.textarea { resize: vertical; min-height: 120px; line-height: var(--lh-base); }

.select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 38px;
  cursor: pointer;
}

/* Input with leading icon */
.input-group { position: relative; }
.input-group .input-group__icon {
  position: absolute; left: 13px; top: 50%; transform: translateY(-50%);
  width: 18px; height: 18px; color: var(--text-soft); pointer-events: none;
}
.input-group .input { padding-left: 40px; }

/* Checkbox / radio */
.check { display: inline-flex; align-items: center; gap: 10px; cursor: pointer; font-size: var(--fs-sm); color: var(--text); user-select: none; }
.check input { position: absolute; opacity: 0; width: 0; height: 0; }
.check__box {
  width: 18px; height: 18px; border: 1.6px solid var(--border-strong);
  border-radius: 5px; display: grid; place-items: center; flex: none;
  transition: background var(--t-fast), border-color var(--t-fast);
  background: var(--surface);
}
.check__box::after {
  content: ""; width: 10px; height: 10px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m5 12 5 5 9-11'/%3E%3C/svg%3E") center/contain no-repeat;
  transform: scale(0); transition: transform var(--t-fast) var(--ease);
}
.check input:checked + .check__box { background: var(--green-600); border-color: var(--green-600); }
.check input:checked + .check__box::after { transform: scale(1); }
.check input:focus-visible + .check__box { box-shadow: var(--focus-ring); }
.check:hover .check__box { border-color: var(--green-600); }
.check__count { margin-left: auto; color: var(--text-soft); font-size: var(--fs-xs); }

.radio .check__box { border-radius: 50%; }
.radio .check__box::after {
  width: 8px; height: 8px; border-radius: 50%; background: #fff;
  -webkit-mask: none; mask: none;
}
.radio input:checked + .check__box { background: var(--green-600); border-color: var(--green-600); }

/* Range slider */
.range { position: relative; height: 32px; }
.range__track { position: absolute; top: 50%; left: 0; right: 0; height: 4px; transform: translateY(-50%); background: var(--surface-3); border-radius: var(--r-full); }
.range__fill { position: absolute; top: 50%; height: 4px; transform: translateY(-50%); background: var(--green-600); border-radius: var(--r-full); }
.range input[type="range"] {
  -webkit-appearance: none; appearance: none;
  position: absolute; top: 0; left: 0; width: 100%; height: 32px;
  background: transparent; pointer-events: none; margin: 0;
}
.range input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 18px; height: 18px; border-radius: 50%;
  background: #fff; border: 2px solid var(--green-600);
  box-shadow: var(--sh-sm); cursor: pointer; pointer-events: auto;
  transition: transform var(--t-fast);
}
.range input[type="range"]::-webkit-slider-thumb:hover { transform: scale(1.12); }
.range input[type="range"]::-moz-range-thumb {
  width: 18px; height: 18px; border-radius: 50%;
  background: #fff; border: 2px solid var(--green-600);
  box-shadow: var(--sh-sm); cursor: pointer; pointer-events: auto;
}

/* ---------------------------------------------------------------- Cards */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--sh-card);
}
.card--flat { box-shadow: none; }
.card--pad { padding: var(--sp-6); }
.card__head {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--sp-3); padding: var(--sp-5) var(--sp-6);
  border-bottom: 1px solid var(--border-soft);
}
.card__title { font-family: var(--font-display); font-size: var(--fs-h4); font-weight: var(--fw-bold); color: var(--navy-800); }
.card__body { padding: var(--sp-6); }

/* ---------------------------------------------------------------- Badges / pills */
.badge {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: var(--fs-2xs); font-weight: var(--fw-semibold);
  letter-spacing: .02em; padding: 4px 9px; border-radius: var(--r-full);
  background: var(--surface-3); color: var(--text-muted);
}
.badge svg { width: 12px; height: 12px; }
.badge--green { background: var(--green-50); color: var(--green-700); }
.badge--navy { background: rgba(10,42,74,.08); color: var(--navy-700); }
.badge--amber { background: #FBF3D9; color: #8A6D0F; }
.badge--soft { background: var(--surface-2); color: var(--text-soft); }

.pill {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: var(--fs-xs); font-weight: var(--fw-medium); color: var(--text-muted);
  padding: 5px 11px; border: 1px solid var(--border); border-radius: var(--r-full);
  background: var(--surface);
}
.pill svg { width: 14px; height: 14px; color: var(--text-soft); }

/* ---------------------------------------------------------------- Tabs */
.tabs { display: inline-flex; gap: 4px; padding: 4px; background: var(--surface-3); border-radius: var(--r-full); }
.tab {
  border: 0; background: transparent; cursor: pointer;
  font-family: var(--font-body); font-size: var(--fs-sm); font-weight: var(--fw-semibold);
  color: var(--text-muted); padding: 9px 18px; border-radius: var(--r-full);
  transition: background var(--t), color var(--t), box-shadow var(--t);
}
.tab[aria-selected="true"] { background: var(--surface); color: var(--navy-800); box-shadow: var(--sh-sm); }
.tab:focus-visible { outline: none; box-shadow: var(--focus-ring); }

/* ---------------------------------------------------------------- Accordion */
.accordion { border: 1px solid var(--border); border-radius: var(--r-lg); overflow: hidden; background: var(--surface); }
.accordion__item + .accordion__item { border-top: 1px solid var(--border-soft); }
.accordion__trigger {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: var(--sp-3);
  padding: var(--sp-5) var(--sp-6); background: transparent; border: 0; cursor: pointer; text-align: left;
  font-family: var(--font-display); font-size: var(--fs-base); font-weight: var(--fw-semibold); color: var(--navy-800);
  transition: background var(--t-fast);
}
.accordion__trigger:hover { background: var(--surface-2); }
.accordion__trigger:focus-visible { outline: none; box-shadow: inset var(--focus-ring); }
.accordion__icon { width: 22px; height: 22px; color: var(--green-600); flex: none; transition: transform var(--t) var(--ease); }
.accordion__trigger[aria-expanded="true"] .accordion__icon { transform: rotate(180deg); }
.accordion__panel { max-height: 0; overflow: hidden; transition: max-height var(--t-slow) var(--ease); }
.accordion__panel-inner { padding: 0 var(--sp-6) var(--sp-5); color: var(--text-muted); line-height: var(--lh-base); font-size: var(--fs-sm); }

/* ---------------------------------------------------------------- Alerts / notes */
.note {
  display: flex; gap: var(--sp-3); align-items: flex-start;
  padding: var(--sp-4) var(--sp-5); border-radius: var(--r-md);
  background: var(--info-50); border: 1px solid #DCE7FB; color: #1E3A5F;
  font-size: var(--fs-sm); line-height: var(--lh-snug);
}
.note svg { width: 18px; height: 18px; flex: none; margin-top: 1px; color: var(--blue); }
.note--green { background: var(--green-50); border-color: #C6EFD3; color: var(--green-800); }
.note--green svg { color: var(--green-600); }

/* ---------------------------------------------------------------- Pagination */
.pagination { display: flex; align-items: center; justify-content: center; gap: 6px; }
.pagination a, .pagination span {
  min-width: 38px; height: 38px; display: inline-flex; align-items: center; justify-content: center;
  padding: 0 6px; border-radius: var(--r-sm); border: 1px solid var(--border);
  font-size: var(--fs-sm); font-weight: var(--fw-medium); color: var(--text-muted);
  background: var(--surface); text-decoration: none; transition: all var(--t-fast);
}
.pagination a:hover { border-color: var(--navy-800); color: var(--navy-800); }
.pagination [aria-current="page"] { background: var(--navy-800); border-color: var(--navy-800); color: #fff; }
.pagination .is-disabled { opacity: .45; pointer-events: none; }
.pagination svg { width: 16px; height: 16px; }

/* ---------------------------------------------------------------- Divider */
.divider { height: 1px; background: var(--border-soft); border: 0; margin: var(--sp-5) 0; }
.divider--dashed { background: none; border-top: 1px dashed var(--border-strong); }

/* ---------------------------------------------------------------- Steps */
.steps { display: flex; align-items: center; gap: 0; flex-wrap: wrap; }
.step { display: flex; align-items: center; gap: 10px; }
.step__num {
  width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: none;
  font-size: var(--fs-xs); font-weight: var(--fw-bold); background: var(--surface-3); color: var(--text-soft);
  border: 1.5px solid var(--border-strong);
}
.step__label { font-size: var(--fs-sm); font-weight: var(--fw-semibold); color: var(--text-soft); }
.step__bar { width: 34px; height: 2px; background: var(--border-strong); margin: 0 10px; border-radius: 2px; }
.step.is-active .step__num { background: var(--green-600); border-color: var(--green-600); color: #fff; }
.step.is-active .step__label { color: var(--navy-800); }
.step.is-done .step__num { background: var(--navy-800); border-color: var(--navy-800); color: #fff; }
.step.is-done .step__label { color: var(--navy-800); }

/* ============================================================
   Passenger picker (travelers + cabin) — searchbar
   ============================================================ */
.pax-picker { position: relative; }
.pax-picker__toggle {
  display: flex; align-items: center; gap: 8px; width: 100%;
  text-align: left; cursor: pointer; padding-right: 12px;
}
.pax-picker__toggle span[data-pax-summary] { flex: 1; color: var(--ink-900); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.pax-picker__caret { width: 16px; height: 16px; color: var(--ink-500); transition: transform var(--t-fast); flex-shrink: 0; }
.pax-picker.is-open .pax-picker__caret { transform: rotate(180deg); }
.pax-picker__pop {
  position: absolute; z-index: 40; top: calc(100% + 8px); right: 0;
  width: 320px; max-width: 88vw; background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--r-lg);
  box-shadow: var(--sh-pop); padding: var(--sp-4);
  display: flex; flex-direction: column; gap: 4px;
  animation: pop .16s var(--ease-out);
}
.pax-picker__pop[hidden] { display: none; }
.pax-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 4px; }
.pax-row + .pax-row { border-top: 1px solid var(--border-soft); }
.pax-row__text { display: flex; flex-direction: column; }
.pax-row__label { font-weight: 600; color: var(--navy-800); font-size: var(--fs-sm); }
.pax-row__sub { font-size: var(--fs-2xs); color: var(--ink-500); }
.pax-stepper { display: inline-flex; align-items: center; gap: 4px; }
.pax-stepper__btn {
  width: 32px; height: 32px; border-radius: 50%; border: 1.5px solid var(--border-strong);
  background: var(--surface); color: var(--navy-800); font-size: 18px; line-height: 1;
  cursor: pointer; display: grid; place-items: center; transition: all var(--t-fast);
}
.pax-stepper__btn:hover:not(:disabled) { border-color: var(--green-600); color: var(--green-700); }
.pax-stepper__btn:disabled { opacity: .4; cursor: not-allowed; }
.pax-stepper__val { min-width: 26px; text-align: center; font-weight: 700; color: var(--navy-800); }
.pax-picker__cabin { padding: 10px 4px 4px; border-top: 1px solid var(--border-soft); }
.pax-picker__cabin .field__label { margin-bottom: 6px; }
.pax-picker__hint { display: flex; align-items: center; gap: 6px; font-size: var(--fs-2xs); color: var(--danger); padding: 4px; }
.pax-picker__hint svg { width: 14px; height: 14px; flex-shrink: 0; }
.pax-picker__pop .btn { margin-top: 8px; }

/* Passenger-type badge on booking form */
.passenger__type {
  display: inline-flex; align-items: center; gap: 6px; font-size: var(--fs-2xs);
  font-weight: 700; letter-spacing: .04em; text-transform: uppercase;
  padding: 4px 10px; border-radius: var(--r-full);
}
.passenger__type--adult  { background: var(--green-50); color: var(--green-700); }
.passenger__type--child  { background: #EFF6FF; color: var(--blue); }
.passenger__type--infant { background: #FEF3F2; color: var(--danger); }
.field__hint--age { color: var(--ink-500); }