/* ── Tokens: palette geïnspireerd op skyscanner.nl (dieb navy + signature blue) ── */
:root {
  --bg:            #ffffff;
  --bg-subtle:     #f2f5fb;
  --bg-card:       #ffffff;
  --border:        #e1e6f0;
  --border-strong: #c6cfe3;
  --text:          #101b38;
  --text-muted:    #55628a;
  --text-faint:    #7885ab;
  --brand:         #0b1f4d;   /* Skyscanner deep navy */
  --brand-2:       #142b63;
  --accent:        #0770e3;   /* Skyscanner signature blue */
  --accent-hover:  #0561c4;
  --accent-inv:    #ffffff;
  --accent-soft:   #e8f1fd;
  --teal:          #00b8c4;   /* secondary accent, used sparingly */
  --danger:        #d0021b;
  --success:       #0e8a4b;
  --shadow:        0 1px 3px rgba(11, 31, 77, 0.10), 0 1px 2px rgba(11, 31, 77, 0.06);
  --mono:          "JetBrains Mono", "Fira Mono", "Courier New", monospace;
  --sans:          "Inter", system-ui, -apple-system, sans-serif;
  --radius:        8px;
  --nav-h:         60px;
  --max-w:         1640px;
  --sidebar-w:     264px;
  --transition:    0.15s ease;
}

/* ── Reset ───────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--sans);
  background: var(--bg-subtle);
  color: var(--text);
  line-height: 1.55;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main { flex: 1; }

/* ── Typography ──────────────────────────────────────────────────────────── */
h1, h2, h3, h4 {
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--brand);
}
h1 { font-size: 1.9rem; }
h2 { font-size: 1.3rem; }
h3 { font-size: 1.05rem; }

p { color: var(--text); }
a { color: var(--accent); text-underline-offset: 3px; text-decoration: none; }
a:hover { color: var(--accent-hover); text-decoration: underline; }

code, .mono { font-family: var(--mono); font-size: 0.875em; }

/* ── Nav ─────────────────────────────────────────────────────────────────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-h);
  background: var(--brand);
  display: flex;
  align-items: center;
  padding: 0 1.5rem;
  gap: 1.5rem;
}

.nav-brand {
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
  color: #fff;
  margin-right: auto;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.nav-brand:hover { color: #fff; text-decoration: none; }
.nav-brand .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--accent); display: inline-block; }
.nav-brand__mark { width: 42px; height: 42px; flex: none; }

.nav-links { display: flex; align-items: center; gap: 0.25rem; list-style: none; }
.nav-links a, .nav-links button {
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  color: rgba(255,255,255,0.78);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius);
  transition: background var(--transition), color var(--transition);
}
.nav-links a:hover, .nav-links button:hover { background: rgba(255,255,255,0.10); color: #fff; text-decoration: none; }

/* ── Layout ──────────────────────────────────────────────────────────────── */
.page {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
  width: 100%;
}
.page-narrow { max-width: 440px; margin: 0 auto; padding: 3rem 1.5rem 4rem; }
.page-narrow.page-wide { max-width: 720px; }

.layout-with-sidebar {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  gap: 1.5rem;
  align-items: stretch;
}

#resultsArea { display: flex; flex-direction: column; }

.btn.filter-toggle { display: none; }

@media (max-width: 860px) {
  .layout-with-sidebar { grid-template-columns: 1fr; }
  .sidebar { position: static; }

  .btn.filter-toggle { display: inline-flex; margin-bottom: 1rem; }
  .sidebar { display: none; margin-bottom: 1.5rem; }
  .sidebar.is-open { display: block; }
}

.sidebar {
  position: sticky;
  top: calc(var(--nav-h) + 1.25rem);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow);
  padding: 1.25rem 1.25rem 1.5rem;
}

.sidebar h3 {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin: 1.1rem 0 0.6rem;
}
.sidebar .filter-group:first-of-type h3:first-child { margin-top: 0; }

.sidebar .filter-group { margin-bottom: 0.25rem; }
.sidebar .filter-group:has(#brandFilters:empty) { display: none; }
.sidebar .filter-group:has(#sourceFilters:empty) { display: none; }
.sidebar .checkbox-row {
  display: flex; align-items: center; gap: 0.5rem;
  font-size: 0.875rem; color: var(--text);
  padding: 0.2rem 0;
}
.sidebar .checkbox-row input { accent-color: var(--accent); }

.range-row { display: flex; gap: 0.5rem; align-items: center; }
.range-row input { width: 100%; }

/* ── Page header ─────────────────────────────────────────────────────────── */
.page-header {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; margin-bottom: 1.5rem; flex-wrap: wrap;
}
.page-header p { color: var(--text-muted); margin-top: 0.25rem; font-size: 0.9375rem; }

/* ── Cards ───────────────────────────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: var(--shadow);
}
.card + .card { margin-top: 1rem; }

.card-header {
  display: flex; align-items: baseline; justify-content: space-between;
  margin-bottom: 1.1rem; padding-bottom: 0.9rem; border-bottom: 1px solid var(--border);
}

.link-btn {
  background: none; border: none; padding: 0; margin: 0;
  font: inherit; color: var(--accent); cursor: pointer; text-align: left;
}
.link-btn:hover { color: var(--accent-hover); text-decoration: underline; }

/* ── Laptop table (list rows) ───────────────────────────────────────────── */
.laptop-table-wrap { overflow-x: auto; }
.laptop-table {
  flex: 1;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow);
}
.laptop-row:first-child { border-radius: 12px 12px 0 0; }
.laptop-row:last-child { border-radius: 0 0 12px 12px; }
.laptop-row--header,
.laptop-row--header:hover {
  padding-top: 0.6rem; padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--border-strong);
  background: var(--border);
}
.col-sort {
  background: none; border: none; padding: 0; margin: 0;
  font: inherit; font-size: 0.68rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em;
  color: var(--text-muted); cursor: pointer; white-space: nowrap;
}
.laptop-row__price .col-sort { margin-left: auto; display: block; }
.col-sort:hover { color: var(--accent); }
.col-sort.is-sorted-asc::after { content: ' \25B2'; font-size: 0.6rem; }
.col-sort.is-sorted-desc::after { content: ' \25BC'; font-size: 0.6rem; }

.laptop-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.9rem 1.1rem;
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}
.laptop-row:last-child { border-bottom: none; }
.laptop-row:hover { background: var(--bg-subtle); }

.laptop-row__media {
  flex: none;
  width: 88px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.45rem;
}
.laptop-row__media img,
.laptop-row__media .no-image {
  width: 88px; height: 68px;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg-subtle); border-radius: 8px;
  object-fit: contain; padding: 0.4rem;
}
.laptop-row__media .no-image { text-align: center; font-size: 0.68rem; line-height: 1.25; }

.compare-pill {
  display: inline-flex; align-items: center; gap: 0.3rem;
  font-size: 0.66rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.02em;
  padding: 0.28rem 0.5rem; border-radius: 999px;
  border: 1px solid var(--border-strong); color: var(--text-muted);
  cursor: pointer; user-select: none; white-space: nowrap;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}
.compare-pill input { position: absolute; opacity: 0; width: 0; height: 0; }
.compare-pill:hover { border-color: var(--accent); }
.compare-pill:has(input:checked) { background: var(--accent); border-color: var(--accent); color: #fff; }

.laptop-row__main { flex: 1 1 260px; min-width: 0; }
.laptop-row__source { font-size: 0.68rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-faint); }
.laptop-row__title {
  display: block; width: 100%;
  background: none; border: none; padding: 0; margin: 0.1rem 0 0.3rem;
  font: inherit; font-size: 0.9375rem; font-weight: 600; color: var(--text);
  text-align: left; cursor: pointer; line-height: 1.35;
}
.laptop-row__title:hover { color: var(--accent); }
.laptop-row__meta { display: flex; flex-wrap: wrap; align-items: center; gap: 0.4rem; font-size: 0.8rem; color: var(--text-muted); }

.laptop-row__col {
  flex: none; width: 80px;
  font-size: 0.85rem; font-weight: 600; color: var(--text);
  text-align: right;
}
.laptop-row__col-label { display: none; }

.laptop-row__col--gpu, .laptop-row__col--weight, .laptop-row__col--battery,
.laptop-row__col--tier, .laptop-row__col--ratio {
  text-align: center;
}
.laptop-row__col--gpu .laptop-row__col-label,
.laptop-row__col--weight .laptop-row__col-label,
.laptop-row__col--battery .laptop-row__col-label,
.laptop-row__col--tier .laptop-row__col-label,
.laptop-row__col--ratio .laptop-row__col-label {
  display: block; font-size: 0.62rem; text-transform: uppercase; letter-spacing: 0.03em;
  color: var(--text-faint); font-weight: 600; margin-bottom: 0.15rem;
}
.laptop-row__col--gpu { width: 140px; font-size: 0.78rem; font-weight: 500; white-space: normal; line-height: 1.3; }
.laptop-row__col--weight { width: 64px; }
.laptop-row__col--battery { width: 90px; font-size: 0.78rem; font-weight: 500; }
.laptop-row__col--tier { width: 56px; }
.laptop-row__col--ratio { width: 76px; }

.laptop-row__price { flex: none; width: 140px; text-align: right; }
.laptop-row__price-amount { display: block; font-size: 1.05rem; font-weight: 700; color: var(--brand); }
.laptop-row__store-link { font-size: 0.78rem; }

.icon-external { display: inline-block; vertical-align: -1px; margin-left: 0.15em; }

.price-popover { position: relative; }
.price-popover__trigger {
  display: block; background: none; border: none; padding: 0; margin: 0 0 0 auto;
  font: inherit; font-size: 1.05rem; font-weight: 700; color: var(--brand); cursor: pointer;
}
.price-popover__panel {
  position: absolute; right: 0; top: 100%; margin-top: 0.35rem;
  background: var(--bg-card); border: 1px solid var(--border-strong);
  border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 0.6rem 0.75rem; min-width: 220px; z-index: 15;
  font-size: 0.8rem; color: var(--text); text-align: left;
}
.price-popover__header {
  display: flex; align-items: center; justify-content: space-between; gap: 0.6rem;
  font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.03em;
  color: var(--text-muted); padding-bottom: 0.45rem; margin-bottom: 0.3rem;
  border-bottom: 1px solid var(--border); white-space: nowrap;
}
.price-popover__close {
  background: none; border: none; padding: 0; color: var(--text-faint);
  font-size: 1.05rem; line-height: 1; cursor: pointer;
}
.price-popover__close:hover { color: var(--danger); }
.price-popover__row {
  display: flex; align-items: center; justify-content: space-between; gap: 0.75rem;
  padding: 0.35rem 0; white-space: nowrap; font-weight: 500;
}
.price-popover__row:not(:last-child) { border-bottom: 1px solid var(--border); }
.price-popover__row strong { color: var(--brand); font-size: 0.85rem; }

@media (max-width: 860px) {
  .laptop-row { flex-wrap: wrap; }
  .laptop-row__col { display: none; }
  .laptop-row__price { width: auto; margin-left: auto; text-align: right; }
  .laptop-row--header { display: none; }
}

@media (max-width: 480px) {
  .laptop-row__media { width: 72px; }
  .laptop-row__media img, .laptop-row__media .no-image { width: 72px; height: 56px; }
}

/* ── Buttons ─────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.4rem;
  padding: 0.65rem 1.25rem; border-radius: var(--radius);
  font-family: var(--sans); font-size: 0.9rem; font-weight: 600;
  cursor: pointer; border: 1px solid transparent; transition: opacity var(--transition), background var(--transition);
  line-height: 1.4;
}
.btn-primary { background: var(--accent); color: var(--accent-inv); border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-hover); text-decoration: none; }
.btn-ghost { background: transparent; color: var(--brand); border-color: var(--border-strong); }
.btn-ghost:hover { background: var(--bg-subtle); text-decoration: none; }
.btn-danger { background: transparent; color: var(--danger); border-color: var(--danger); }
.btn-danger:hover { background: var(--danger); color: #fff; text-decoration: none; }
.btn-sm { padding: 0.35rem 0.7rem; font-size: 0.8rem; }
.btn-lg { padding: 0.85rem 1.75rem; font-size: 1rem; }
.btn-full { width: 100%; }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }

/* ── Forms ───────────────────────────────────────────────────────────────── */
.form-group { margin-bottom: 1.1rem; }
label { display: block; font-size: 0.8rem; font-weight: 600; color: var(--text-muted); margin-bottom: 0.35rem; }

input[type="text"], input[type="number"], input[type="url"], input[type="password"], textarea, select {
  width: 100%;
  padding: 0.65rem 0.8rem;
  background: var(--bg);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--sans);
  font-size: 0.9375rem;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}
input:focus, textarea:focus, select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
textarea { resize: vertical; min-height: 5rem; }
input:disabled, select:disabled, textarea:disabled { background: var(--bg-subtle); color: var(--text-faint); cursor: not-allowed; }

.fields-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; }

.url-row { display: flex; gap: 0.6rem; flex-wrap: wrap; }
.url-row input { flex: 1 1 220px; min-width: 0; }
.url-row .btn { flex: none; }

.offers-list { list-style: none; padding: 0; margin: 0.5rem 0; }
.offers-list li {
  display: flex; align-items: center; gap: 0.6rem;
  padding: 0.4rem 0; font-size: 0.875rem;
  border-bottom: 1px solid var(--border);
}
.offers-list li:last-child { border-bottom: none; }
.offers-list .offer-remove {
  margin-left: auto; background: none; border: none;
  color: var(--text-faint); cursor: pointer; font-size: 1.1rem; line-height: 1; padding: 0.1rem 0.3rem;
}
.offers-list .offer-remove:hover { color: var(--danger); }

/* ── Alerts ──────────────────────────────────────────────────────────────── */
.alert { padding: 0.8rem 1rem; border-radius: var(--radius); font-size: 0.875rem; border: 1px solid; margin-bottom: 1.25rem; }
.alert-error   { border-color: var(--danger);  color: var(--danger);  background: color-mix(in srgb, var(--danger) 7%, var(--bg)); }
.alert-success { border-color: var(--success); color: var(--success); background: color-mix(in srgb, var(--success) 7%, var(--bg)); }
.alert-warning { border-color: #b9770e; color: #8a5a0a; background: #fdf3e3; }

/* ── Table (compare view) ────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.9rem; background: var(--bg-card); }
th, td { padding: 0.75rem 1rem; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
th { background: var(--bg-subtle); font-size: 0.72rem; letter-spacing: 0.05em; text-transform: uppercase; color: var(--text-muted); }
.compare-table td:first-child, .compare-table th:first-child { font-weight: 600; color: var(--text-muted); white-space: nowrap; }
.compare-table { table-layout: fixed; }
.compare-table th { width: 140px; }
tr:last-child td { border-bottom: none; }

/* ── Empty state ─────────────────────────────────────────────────────────── */
.empty-state {
  flex: 1;
  text-align: center; padding: 3.5rem 1.5rem; color: var(--text-muted);
  background: var(--bg-card); border: 1px dashed var(--border-strong); border-radius: 12px;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
}
.empty-state h3 { margin-bottom: 0.4rem; }

/* ── Modal ───────────────────────────────────────────────────────────────── */
body.modal-open { overflow: hidden; }

.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 300;
  background: rgba(11, 31, 77, 0.45);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}
.modal-overlay[hidden] { display: none; }

.modal {
  background: var(--bg-card);
  border-radius: 12px;
  box-shadow: 0 20px 50px rgba(11,31,77,0.35);
  width: 100%;
  max-width: 720px;
  max-height: calc(100vh - 3rem);
  overflow-y: auto;
}
.modal.modal-compare { max-width: 1040px; }

.modal-divider { border: none; border-top: 1px solid var(--border); margin: 1.25rem 0; }

.form-group.is-missing label { color: #8a5a0a; }
.form-group.is-missing input, .form-group.is-missing select { border-color: #b9770e; }

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border);
}
.modal-header h2 { font-size: 1.15rem; }

.modal-close {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--text-faint);
  padding: 0.25rem;
}
.modal-close:hover { color: var(--text); }

.modal-body { padding: 1.5rem; }

/* ── Compare bar ─────────────────────────────────────────────────────────── */
.compare-bar {
  position: fixed; left: 50%; bottom: 1.25rem; transform: translateX(-50%);
  background: var(--brand); color: #fff; border-radius: 999px;
  padding: 0.65rem 1.1rem;
  display: none; align-items: center; gap: 0.85rem;
  box-shadow: 0 8px 24px rgba(11,31,77,0.35);
  z-index: 200;
}
.compare-bar.visible { display: flex; }
.compare-bar span { font-size: 0.85rem; font-weight: 600; }
.compare-bar .btn-primary { padding: 0.35rem 0.6rem; font-size: 0.875rem; min-width: 6.5rem; margin-right: 0.4rem; }

.compare-bar__clear {
  flex: none;
  width: 2rem; height: 2rem; padding: 0;
  background: rgba(255,255,255,0.12); border: none; border-radius: 50%;
  color: #fff; font-size: 1.1rem; line-height: 1; cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
  transition: background var(--transition);
}
.compare-bar__clear:hover { background: rgba(255,255,255,0.24); }

/* ── Utility ─────────────────────────────────────────────────────────────── */
.text-muted { color: var(--text-muted); }
.text-faint { color: var(--text-faint); }
.text-sm { font-size: 0.875rem; }
.text-xs { font-size: 0.75rem; }
.mt-1 { margin-top: 0.5rem; } .mt-2 { margin-top: 1rem; } .mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; } .mb-2 { margin-bottom: 1rem; }
.flex { display: flex; } .items-center { align-items: center; } .justify-between { justify-content: space-between; }
.flex-wrap { flex-wrap: wrap; }
.gap-1 { gap: 0.5rem; } .gap-2 { gap: 1rem; }

footer { text-align: center; padding: 2rem 1.5rem; color: var(--text-faint); font-size: 0.8rem; }

@media (max-width: 700px) {
  html { font-size: 15px; }
  .nav { padding: 0 1rem; }
  .page { padding: 1.5rem 1rem 3rem; }
  .page-narrow { padding: 2rem 1rem 3rem; }
  h1 { font-size: 1.5rem; }

  .modal-overlay { padding: 0; align-items: flex-end; }
  .modal, .modal.modal-compare { max-width: none; width: 100%; max-height: 92vh; border-radius: 16px 16px 0 0; }
  .modal-header { padding: 1rem 1.25rem; }
  .modal-body { padding: 1.25rem; }

  .compare-table th, .compare-table td { padding: 0.6rem 0.75rem; font-size: 0.85rem; }
}