/* Линеа Дом — проектантски услуги · РЕМИКА 1 ЕООД
   Един CSS файл за целия сайт. Без външни библиотеки. */

:root {
  --ink: #1b1f24;
  --ink-2: #454c55;
  --ink-3: #6b737d;
  --line: #d9dde2;
  --paper: #ffffff;
  --paper-2: #f4f5f7;
  --accent: #1f4e5f;      /* тъмен петрол — сдържан, инженерен */
  --accent-2: #17404e;
  --accent-soft: #e6eef1;
  --ok: #2c6e49;
  --max: 1120px;
  --radius: 6px;
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--accent-2); }
h1, h2, h3, h4 { line-height: 1.2; margin: 0 0 .5em; font-weight: 600; letter-spacing: -0.01em; }
h1 { font-size: clamp(1.9rem, 4vw, 2.7rem); }
h2 { font-size: clamp(1.4rem, 2.6vw, 1.8rem); margin-top: 0; }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1em; }
ul, ol { padding-left: 1.3em; margin: 0 0 1em; }
li { margin-bottom: .35em; }
strong { font-weight: 600; }
.muted { color: var(--ink-3); }
.small { font-size: .92rem; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 760px; }

.skip { position: absolute; left: -999px; top: 0; background: var(--accent); color: #fff; padding: 8px 12px; }
.skip:focus { left: 8px; top: 8px; z-index: 100; }

/* Header */
.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--paper);
  position: sticky; top: 0; z-index: 50;
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; min-height: 68px; gap: 16px; }
.brand { display: flex; align-items: baseline; gap: 10px; text-decoration: none; color: var(--ink); }
.brand .name { font-weight: 700; font-size: 1.15rem; letter-spacing: .01em; }
.brand .tag { color: var(--ink-3); font-size: .85rem; }
.nav-toggle { display: none; background: none; border: 1px solid var(--line); border-radius: var(--radius); padding: 8px 10px; font: inherit; cursor: pointer; color: var(--ink); }
.nav ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 22px; align-items: center; }
.nav a { text-decoration: none; color: var(--ink-2); font-size: .97rem; padding: 6px 0; border-bottom: 2px solid transparent; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--accent); }
.nav .cta { background: var(--accent); color: #fff; padding: 9px 16px; border-radius: var(--radius); border: none; }
.nav .cta:hover { background: var(--accent-2); color: #fff; }

@media (max-width: 860px) {
  .brand .tag { display: none; }
  .nav-toggle { display: inline-block; }
  .nav { display: none; position: absolute; left: 0; right: 0; top: 100%; background: var(--paper); border-bottom: 1px solid var(--line); box-shadow: 0 8px 24px rgba(0,0,0,.06); }
  .nav.open { display: block; }
  .nav ul { flex-direction: column; align-items: stretch; gap: 0; padding: 8px 20px 16px; }
  .nav li { border-top: 1px solid var(--line); }
  .nav a { display: block; padding: 12px 0; border-bottom: none; }
  .nav .cta { margin-top: 10px; text-align: center; }
}

/* Hero */
.hero { padding: 56px 0 44px; border-bottom: 1px solid var(--line); background: var(--paper-2); }
.hero h1 { max-width: 20ch; }
.hero .lead { font-size: 1.2rem; color: var(--ink-2); max-width: 60ch; margin-bottom: 1.4em; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.btn { display: inline-block; background: var(--accent); color: #fff; padding: 12px 20px; border-radius: var(--radius); text-decoration: none; font-weight: 600; border: 1px solid var(--accent); font: inherit; cursor: pointer; }
.btn:hover { background: var(--accent-2); color: #fff; }
.btn.ghost { background: transparent; color: var(--accent); }
.btn.ghost:hover { background: var(--accent-soft); }
.page-head { padding: 44px 0 28px; border-bottom: 1px solid var(--line); background: var(--paper-2); }
.page-head h1 { max-width: 24ch; }
.page-head .lead { font-size: 1.15rem; color: var(--ink-2); max-width: 64ch; margin: 0; }
.crumbs { font-size: .88rem; color: var(--ink-3); margin-bottom: 14px; }
.crumbs a { color: var(--ink-3); }

/* Sections */
section.block { padding: 48px 0; }
section.block + section.block { border-top: 1px solid var(--line); }
section.alt { background: var(--paper-2); }
.section-head { max-width: 62ch; margin-bottom: 28px; }
.section-head p { color: var(--ink-2); }

.grid { display: grid; gap: 20px; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); }
.card { border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; background: var(--paper); display: flex; flex-direction: column; }
.card h3 { margin-bottom: .4em; }
.card p { color: var(--ink-2); font-size: .97rem; margin-bottom: .8em; }
.card .more { margin-top: auto; font-size: .95rem; font-weight: 600; text-decoration: none; }
.card .more::after { content: " →"; }
.card.partner { background: var(--paper-2); }
.card .label { font-size: .78rem; text-transform: uppercase; letter-spacing: .06em; color: var(--ink-3); margin-bottom: 8px; }

.two-col { display: grid; gap: 40px; grid-template-columns: 1.2fr 1fr; align-items: start; }
@media (max-width: 800px) { .two-col { grid-template-columns: 1fr; } }

.steps { list-style: none; padding: 0; margin: 0; counter-reset: s; display: grid; gap: 18px; }
.steps li { counter-increment: s; display: grid; grid-template-columns: 44px 1fr; gap: 14px; align-items: start; }
.steps li::before { content: counter(s); display: grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; background: var(--accent-soft); color: var(--accent); font-weight: 700; }
.steps h3 { margin-bottom: .2em; font-size: 1.05rem; }
.steps p { margin: 0; color: var(--ink-2); }

.check { list-style: none; padding: 0; }
.check li { padding-left: 26px; position: relative; }
.check li::before { content: ""; position: absolute; left: 0; top: .5em; width: 14px; height: 8px; border-left: 2px solid var(--ok); border-bottom: 2px solid var(--ok); transform: rotate(-45deg); }

.note { border-left: 3px solid var(--accent); background: var(--accent-soft); padding: 14px 18px; border-radius: 0 var(--radius) var(--radius) 0; margin: 1.2em 0; }
.note p:last-child { margin-bottom: 0; }

.faq details { border-top: 1px solid var(--line); padding: 14px 0; }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--ink-3); font-weight: 400; }
.faq details[open] summary::after { content: "–"; }
.faq details p { margin-top: 10px; color: var(--ink-2); }

.regions { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; padding: 0; margin: 0; }
.regions li { border: 1px solid var(--line); border-radius: 999px; padding: 5px 12px; font-size: .92rem; background: var(--paper); }

/* CTA band */
.cta-band { background: var(--accent); color: #fff; padding: 44px 0; }
.cta-band h2 { color: #fff; }
.cta-band p { color: rgba(255,255,255,.85); max-width: 60ch; }
.cta-band .btn { background: #fff; color: var(--accent); border-color: #fff; }
.cta-band .btn:hover { background: #eef3f5; }
.cta-band a.phone { color: #fff; font-weight: 600; font-size: 1.1rem; }

/* Article / service pages */
.article { padding: 40px 0 56px; }
.article h2 { margin-top: 1.6em; }
.article h2:first-child { margin-top: 0; }
.aside { border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; background: var(--paper-2); position: sticky; top: 90px; }
.aside h3 { font-size: 1rem; margin-bottom: .6em; }
.aside ul { list-style: none; padding: 0; margin: 0 0 1em; }
.aside li { border-top: 1px solid var(--line); padding: 8px 0; margin: 0; }
.aside li a { text-decoration: none; color: var(--ink-2); font-size: .95rem; }
.aside li a[aria-current="page"] { color: var(--ink); font-weight: 600; }
.aside .btn { width: 100%; text-align: center; }
@media (max-width: 800px) { .aside { position: static; } }

/* Forms */
form.contact { display: grid; gap: 16px; max-width: 640px; }
label { font-weight: 600; font-size: .95rem; display: block; margin-bottom: 6px; }
input[type="text"], input[type="email"], input[type="tel"], select, textarea {
  width: 100%; padding: 11px 12px; border: 1px solid #b9c0c7; border-radius: var(--radius); font: inherit; color: var(--ink); background: #fff;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: var(--accent); }
textarea { min-height: 140px; resize: vertical; }
.field-row { display: grid; gap: 16px; grid-template-columns: 1fr 1fr; }
@media (max-width: 600px) { .field-row { grid-template-columns: 1fr; } }
.consent { display: flex; gap: 10px; align-items: flex-start; font-size: .92rem; color: var(--ink-2); }
.consent input { margin-top: 5px; }
.consent label { font-weight: 400; margin: 0; display: inline; }
.hidden { display: none; }

.contact-info dl { margin: 0; }
.contact-info dt { font-size: .8rem; text-transform: uppercase; letter-spacing: .06em; color: var(--ink-3); margin-top: 14px; }
.contact-info dd { margin: 2px 0 0; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); background: var(--paper-2); padding: 40px 0 28px; font-size: .93rem; color: var(--ink-2); }
.site-footer .cols { display: grid; gap: 28px; grid-template-columns: 1.4fr 1fr 1fr; }
@media (max-width: 760px) { .site-footer .cols { grid-template-columns: 1fr; } }
.site-footer h4 { font-size: .85rem; text-transform: uppercase; letter-spacing: .06em; color: var(--ink-3); margin-bottom: 10px; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 6px; }
.site-footer a { color: var(--ink-2); text-decoration: none; }
.site-footer a:hover { color: var(--ink); text-decoration: underline; }
.site-footer .legal { margin-top: 28px; padding-top: 16px; border-top: 1px solid var(--line); font-size: .85rem; color: var(--ink-3); display: flex; flex-wrap: wrap; gap: 8px 20px; justify-content: space-between; }

/* Print */
@media print {
  .site-header, .site-footer, .cta-band, .nav-toggle { display: none; }
  body { font-size: 12pt; }
}