/* Функциональная база: читаемость и адаптив на 390/768/1024/1440. Визуальный
   слой дорабатывается через world-class-web-designer и design-critic. */

:root {
  --bg: #ffffff;
  --bg-soft: #f4f6f9;
  --text: #16181d;
  --text-muted: #5b6270;
  --line: #e1e5eb;
  --accent: #1a5cff;
  --accent-soft: #e9efff;
  --warn-soft: #fff4d6;
  --warn: #8a5a00;
  --highlight: #fff1a8;
  --radius: 10px;
  --max: 1120px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

a { color: var(--accent); }
h1, h2, h3 { line-height: 1.2; margin: 0 0 .5em; }
h1 { font-size: clamp(1.7rem, 4vw, 2.6rem); }
h2 { font-size: 1.35rem; }
h3 { font-size: 1.05rem; }
p { margin: 0 0 1em; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 16px; }
.muted, .opt { color: var(--text-muted); font-weight: normal; font-size: .85em; }

/* Header / footer */
.site-header { border-bottom: 1px solid var(--line); }
.header-row { display: flex; align-items: center; justify-content: space-between; min-height: 56px; gap: 12px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 700; }
.brand-mark { display: inline-grid; place-items: center; width: 32px; height: 32px; border-radius: 8px; background: var(--accent); color: #fff; font-size: .8rem; }
.site-nav { display: flex; gap: 18px; }
.site-nav a { color: var(--text); text-decoration: none; }
.site-footer { border-top: 1px solid var(--line); margin-top: 48px; padding: 24px 0; color: var(--text-muted); font-size: .9rem; }
.footer-row { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; }
.footer-row nav { display: flex; gap: 16px; }

/* Buttons */
.btn { display: inline-block; padding: 10px 16px; border-radius: 8px; border: 1px solid var(--line); background: var(--bg); color: var(--text); text-decoration: none; font: inherit; cursor: pointer; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }
.btn-ghost { background: transparent; }
.btn:focus-visible { outline: 3px solid var(--accent-soft); outline-offset: 1px; }

/* Forms */
.field { display: flex; flex-direction: column; gap: 4px; }
.field label, .field legend { font-size: .85rem; color: var(--text-muted); }
input[type="search"], input[type="text"], select {
  font: inherit; padding: 10px 12px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); color: var(--text); width: 100%;
}
input:focus, select:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.search-form, .compare-form { display: grid; gap: 14px; background: var(--bg-soft); padding: 16px; border-radius: var(--radius); }
.loc-group { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); }
.loc-label { grid-column: 1 / -1; font-weight: 600; }
.field-devices { border: 0; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px; align-content: end; }
.field-devices legend { padding: 0; margin-bottom: 4px; width: 100%; }
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 8px 12px; border: 1px solid var(--line); border-radius: 999px; background: var(--bg); cursor: pointer; font-size: .95rem; }
.chip:has(input:checked) { border-color: var(--accent); background: var(--accent-soft); }
.chip input { margin: 0; }
.advanced summary { cursor: pointer; color: var(--text-muted); font-size: .9rem; }
.advanced-row { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); margin-top: 10px; }
.form-actions { display: flex; gap: 10px; }
.compare-grid { display: grid; gap: 16px; grid-template-columns: 1fr; }
@media (min-width: 900px) { .compare-grid { grid-template-columns: 1fr 1fr; } }
.search-form.is-compact { background: transparent; padding: 0; }

/* Index */
.hero { padding: 40px 0 24px; }
.lead { font-size: 1.1rem; color: var(--text-muted); max-width: 62ch; }
.hero-note { color: var(--text-muted); font-size: .9rem; margin-top: 10px; }
.examples, .compare-intro, .how, .faq { margin-top: 40px; }
.example-list { padding-left: 1.2em; }
.example-list li { margin: 4px 0; }
.how-grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.faq details { border-top: 1px solid var(--line); padding: 10px 0; }
.faq summary { cursor: pointer; font-weight: 600; }
.recent[hidden] { display: none; }

/* Result head */
.serp-head { background: var(--bg-soft); border-bottom: 1px solid var(--line); padding: 14px 0; }
.edit-search summary { list-style: none; display: flex; flex-wrap: wrap; gap: 10px; align-items: baseline; cursor: pointer; }
.edit-search summary::-webkit-details-marker { display: none; }
.summary-q { font-size: 1.25rem; font-weight: 700; }
.summary-meta { color: var(--text-muted); }
.summary-edit { color: var(--accent); text-decoration: underline; margin-left: auto; }
.edit-search[open] summary { margin-bottom: 12px; }
.serp-status { display: flex; flex-wrap: wrap; gap: 8px 18px; align-items: center; margin-top: 10px; font-size: .9rem; color: var(--text-muted); }
.serp-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-left: auto; }
.serp-actions .btn { padding: 6px 10px; font-size: .9rem; }
.notice { margin: 10px 0 0; padding: 10px 12px; border-radius: 8px; background: var(--accent-soft); font-size: .95rem; }
.notice-warn { background: var(--warn-soft); color: var(--warn); }
.notice-domain { background: var(--highlight); color: var(--text); }

/* SERP */
.serp { margin-top: 20px; }
.serp-frame { display: grid; gap: 24px; grid-template-columns: 1fr; }
@media (min-width: 1024px) {
  .page-search.device-desktop .serp-frame { grid-template-columns: minmax(0, 652px) minmax(280px, 380px); }
}
.page-search.device-mobile .serp-main, .page-search.device-tablet .serp-main { max-width: 430px; margin: 0 auto; border: 1px solid var(--line); border-radius: 22px; padding: 16px; }
.page-search.device-tablet .serp-main { max-width: 760px; border-radius: 14px; }
.serp-block { border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; margin-bottom: 18px; }
.block-title { font-size: 1rem; margin-bottom: 8px; }
.block-note { color: var(--text-muted); font-size: .85rem; margin: -4px 0 8px; }
.block-source { color: var(--text-muted); font-size: .9rem; display: flex; align-items: center; gap: 6px; margin: 6px 0 0; }
.favicon { width: 16px; height: 16px; border-radius: 4px; vertical-align: middle; }

.organic { list-style: none; padding: 0; margin: 0; }
.result { padding: 12px 8px; border-radius: 8px; }
.result + .result { margin-top: 6px; }
.result.is-highlight { background: var(--highlight); outline: 2px solid #f2c94c; }
.result-source { display: flex; align-items: center; gap: 8px; font-size: .85rem; color: var(--text-muted); overflow-wrap: anywhere; }
.result-pos { margin-left: auto; font-variant-numeric: tabular-nums; }
.result-title { font-size: 1.15rem; margin: 2px 0 4px; font-weight: 500; }
.result-title a { text-decoration: none; }
.result-title a:hover { text-decoration: underline; }
.result-snippet { margin: 0; color: #3c4043; overflow-wrap: anywhere; }
.result-date { color: var(--text-muted); }
.result-rating { color: var(--text-muted); font-size: .9rem; margin: 4px 0 0; }
.sitelinks { list-style: none; padding: 0; margin: 8px 0 0; display: flex; flex-wrap: wrap; gap: 6px 16px; font-size: .95rem; }
.result-empty { color: var(--text-muted); padding: 20px 8px; }

.answer-box .answer-main { font-size: 1.3rem; font-weight: 600; }
.knowledge .kg-image { max-width: 100%; border-radius: 8px; margin-bottom: 8px; }
.kg-type { color: var(--text-muted); margin-top: -6px; }
.kg-attrs { display: grid; grid-template-columns: max-content 1fr; gap: 4px 12px; margin: 8px 0 0; font-size: .95rem; }
.kg-attrs dt { color: var(--text-muted); }
.kg-attrs dd { margin: 0; }
.paa-item { border-top: 1px solid var(--line); padding: 8px 0; }
.paa-item summary { cursor: pointer; font-weight: 500; }
.paa-body { padding-top: 8px; color: #3c4043; }
.places-list { padding-left: 1.2em; margin: 0; }
.places-list li { margin: 6px 0; display: flex; flex-wrap: wrap; gap: 4px 10px; }
.place-rating, .place-cat, .place-addr { color: var(--text-muted); font-size: .9rem; }
.stories-list, .related-list { list-style: none; padding: 0; margin: 0; }
.stories-list li { margin: 6px 0; display: flex; align-items: baseline; gap: 8px; }
.story-meta { color: var(--text-muted); font-size: .85rem; }
.related-list { display: grid; gap: 6px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.related-list a { display: block; padding: 8px 12px; background: var(--bg-soft); border-radius: 999px; text-decoration: none; color: var(--text); }
.pager { display: flex; align-items: center; gap: 12px; margin: 8px 0 24px; }
.pager-current { color: var(--text-muted); }

/* Compare */
.compare { margin-top: 20px; }
.compare-columns { display: grid; gap: 20px; grid-template-columns: 1fr; }
@media (min-width: 900px) { .compare-columns { grid-template-columns: 1fr 1fr; } }
.compare-col { min-width: 0; }
.compare-col-head { margin-bottom: 8px; }
.compare-col-meta { color: var(--text-muted); font-size: .9rem; }
.compare-diff { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); margin-top: 28px; padding-top: 20px; border-top: 1px solid var(--line); }
.compare-diff ul { padding-left: 1.2em; margin: 0; overflow-wrap: anywhere; }

/* Legal */
.prose { max-width: 72ch; padding-top: 32px; }
.page-error { padding-top: 40px; }

@media (max-width: 600px) {
  .site-nav { gap: 12px; font-size: .95rem; }
  .serp-actions { margin-left: 0; }
  .summary-edit { margin-left: 0; }
}