/*
  Layout concept: a ledger book. Sections are "entries" separated by rules,
  with mono-spaced labels and numbers echoing a счетоводен регистър.
*/
:root {
  --bg: #faf8f4;
  --surface: #ffffff;
  --ink: #1f2a24;
  --ink-soft: #52605a;
  --line: #d8d2c4;
  --accent: #2f5d4f;
  --accent-soft: #e7efe9;
  --gold: #a9742f;
  --danger: #a3402f;
  color-scheme: light;

  --font-display: 'Fraunces', Georgia, 'Times New Roman', serif;
  --font-body: 'Source Sans 3', -apple-system, 'Segoe UI', sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, 'SF Mono', monospace;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #161a17; --surface: #1d2320; --ink: #ece7dd; --ink-soft: #a8b0a8;
    --line: #343c36; --accent: #7fb89d; --accent-soft: #223129; --gold: #cf9d53;
    --danger: #e08a78; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #161a17; --surface: #1d2320; --ink: #ece7dd; --ink-soft: #a8b0a8;
  --line: #343c36; --accent: #7fb89d; --accent-soft: #223129; --gold: #cf9d53;
  --danger: #e08a78; color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
}
a { color: var(--accent); text-underline-offset: 3px; }
[hidden] { display: none !important; }
.wrap { max-width: 1100px; margin: 0 auto; padding-block: 1.2rem 4rem; }

.skip-link { position: absolute; left: 16px; top: -100px; z-index: 20; background: var(--surface); padding: 12px; }
.skip-link:focus { top: 12px; }

/* nav */
.site-nav {
  display: flex; justify-content: space-between; align-items: center; gap: 20px;
  padding: 1rem 0 1.5rem; border-bottom: 1px solid var(--line);
}
.brand { font-family: var(--font-display); font-size: 1.25rem; text-decoration: none; color: var(--ink); line-height: 1.3; }
.brand small { display: block; font: .78rem var(--font-body); color: var(--ink-soft); }
.nav-right { display: flex; align-items: center; gap: 1.4rem; flex-wrap: wrap; }
.nav-links { display: flex; gap: 1.4rem; flex-wrap: wrap; }
.nav-links a { text-decoration: none; font-weight: 600; font-size: .95rem; }
.theme-toggle {
  font-family: var(--font-mono); font-size: .75rem; background: transparent; color: var(--ink-soft);
  border: 1px solid var(--line); border-radius: 999px; padding: .3rem .75rem; cursor: pointer; min-height: 34px;
}

/* hero */
header.hero {
  display: grid; grid-template-columns: 1.5fr 1fr; gap: 2.5rem; align-items: center;
  padding: 4.5rem 0 3.5rem; margin-bottom: 2.5rem; border-bottom: 1px solid var(--line);
  background: radial-gradient(ellipse at top right, var(--accent-soft), transparent 65%);
}
.hero-main { display: grid; gap: 1rem; }
.eyebrow { font-family: var(--font-mono); font-size: .78rem; letter-spacing: .14em; text-transform: uppercase; color: var(--gold); }
h1 {
  font-family: var(--font-display); font-weight: 500; margin: 0; text-wrap: balance;
  font-size: clamp(2.3rem, 5vw, 4rem); max-width: 19ch; line-height: 1.12; letter-spacing: -.025em;
}
.hero-sub { font-size: 1.2rem; color: var(--ink-soft); max-width: 56ch; margin: .2rem 0; }
.hero-meta { display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; font-size: .95rem; color: var(--ink-soft); }
.hero-actions { display: flex; gap: .8rem; flex-wrap: wrap; margin-top: .6rem; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem; min-height: 48px;
  background: var(--accent); color: var(--bg); font-weight: 600; text-decoration: none;
  padding: .75rem 1.3rem; border-radius: 7px; font-size: .98rem; border: 1px solid var(--accent);
  cursor: pointer; transition: transform .15s; font-family: var(--font-body);
}
.btn:visited { color: var(--bg); }
.btn:hover { transform: translateY(-2px); }
.btn-secondary, .btn-secondary:visited { background: transparent; color: var(--accent); }

/* hero ledger card: next deadlines */
.ledger-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 1.3rem 1.4rem;
  box-shadow: 0 18px 40px -28px rgba(31, 42, 36, .45);
}
.ledger-card h2 { font-size: 1.15rem; margin: 0 0 .2rem; }
.ledger-card .muted { font-size: .85rem; color: var(--ink-soft); margin: 0 0 .9rem; }
.ledger-rows { list-style: none; margin: 0; padding: 0; }
.ledger-rows li {
  display: grid; grid-template-columns: 4.6rem 1fr; gap: .8rem; padding: .65rem 0;
  border-top: 1px dashed var(--line); align-items: baseline;
}
.ledger-rows .date { font-family: var(--font-mono); font-size: .85rem; color: var(--gold); }
.ledger-rows .what { font-weight: 600; font-size: .95rem; line-height: 1.35; }
.ledger-rows .left { display: block; font-weight: 400; font-size: .82rem; color: var(--ink-soft); }
.ledger-card .more { display: inline-block; margin-top: .6rem; font-size: .9rem; font-weight: 600; }

/* sections */
section { position: relative; padding-top: 2rem; margin-top: 3.5rem; border-top: 1px solid var(--line); scroll-margin-top: 24px; }
h2 { font-family: var(--font-display); font-weight: 500; font-size: clamp(1.4rem, 3vw, 1.75rem); margin: 0 0 .9rem; }
.lede { color: var(--ink-soft); max-width: 62ch; margin-bottom: 1.5rem; }
.section-no { font-family: var(--font-mono); font-size: .75rem; color: var(--gold); letter-spacing: .1em; display: block; margin-bottom: .3rem; }

/* about */
.about-grid { display: grid; gap: 1.2rem; grid-template-columns: repeat(4, minmax(0, 1fr)); margin: 0; }
.fact { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 1rem 1.1rem; }
.fact dt { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-soft); margin-bottom: .3rem; }
.fact dd { margin: 0; font-weight: 600; }

/* services */
.services { display: grid; gap: 1rem; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.svc { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 1.5rem; min-width: 0; display: flex; flex-direction: column; }
.svc-no { font-family: var(--font-mono); font-size: .78rem; color: var(--gold); margin-bottom: .75rem; }
.svc h3 { font-weight: 700; font-size: 1.08rem; margin: 0 0 .4rem; line-height: 1.3; }
.svc p { margin: 0; color: var(--ink-soft); font-size: .94rem; flex: 1; }
.svc-ask { margin-top: .9rem; font-size: .85rem; font-weight: 600; background: none; border: none; padding: 0; color: var(--accent); cursor: pointer; text-align: left; font-family: var(--font-body); }

/* why */
.why-list { display: grid; gap: 1rem; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.why-item { display: grid; grid-template-columns: auto 1fr; gap: .9rem; align-items: baseline; }
.why-mark { font-family: var(--font-mono); color: var(--accent); font-weight: 500; }
.why-item p { margin: .15rem 0 0; color: var(--ink-soft); }
.why-item strong { font-size: 1.02rem; }

/* process */
.process-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; }
.process-card { padding: 1.4rem; background: var(--accent-soft); border-radius: 10px; }
.process-card h3 { margin: .4rem 0; }
.process-card p { margin: 0; color: var(--ink-soft); }

/* deadlines calendar */
.cal-controls { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: 1.2rem; }
.chip {
  font-family: var(--font-body); font-size: .9rem; font-weight: 600; min-height: 38px;
  padding: .4rem .9rem; border-radius: 999px; border: 1px solid var(--line);
  background: var(--surface); color: var(--ink-soft); cursor: pointer;
}
.chip[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: var(--bg); }
.cal-table { width: 100%; border-collapse: collapse; background: var(--surface); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
.cal-table th, .cal-table td { text-align: left; padding: .8rem 1rem; border-bottom: 1px solid var(--line); vertical-align: top; }
.cal-table th { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-soft); font-weight: 500; background: var(--accent-soft); }
.cal-table tr:last-child td { border-bottom: none; }
.cal-table .c-date { font-family: var(--font-mono); white-space: nowrap; color: var(--gold); font-size: .9rem; }
.cal-table .c-what strong { display: block; }
.cal-table .c-what span { color: var(--ink-soft); font-size: .9rem; }
.cal-table .c-left { white-space: nowrap; font-size: .9rem; color: var(--ink-soft); }
.cal-table tr.soon .c-left { color: var(--danger); font-weight: 600; }
.tag { display: inline-block; font-family: var(--font-mono); font-size: .68rem; letter-spacing: .05em; padding: .1rem .45rem; border-radius: 4px; background: var(--accent-soft); color: var(--accent); margin: .3rem .3rem 0 0; }
.note {
  font-size: .85rem; color: var(--ink-soft); background: var(--accent-soft); border-radius: 6px;
  padding: .7rem .9rem; border-left: 3px solid var(--gold); margin-top: 1rem;
}

/* faq */
.faq { display: grid; gap: .6rem; max-width: 820px; }
.faq details { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 0 1.2rem; }
.faq summary { cursor: pointer; font-weight: 600; padding: 1rem 0; list-style: none; display: flex; justify-content: space-between; gap: 1rem; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; font-family: var(--font-mono); color: var(--gold); }
.faq details[open] summary::after { content: '−'; }
.faq details p { margin: 0 0 1rem; color: var(--ink-soft); }

/* contact */
.contact-grid { display: grid; gap: 2rem; grid-template-columns: 1fr 1.15fr; }
.contact-info { display: grid; gap: 1.2rem; align-content: start; }
.contact-line { display: grid; gap: .2rem; margin: 0; }
.contact-line dt { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-soft); }
.contact-line dd { margin: 0; font-size: 1.05rem; display: flex; align-items: center; gap: .6rem; flex-wrap: wrap; }
.contact-line dd a { font-size: 1.2rem; text-underline-offset: 4px; }
.copy-btn {
  font-family: var(--font-mono); font-size: .72rem; background: var(--accent-soft); color: var(--accent);
  border: none; border-radius: 3px; padding: .2rem .6rem; cursor: pointer; min-height: 36px;
}

form.inquiry { display: grid; gap: 1rem; background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 1.4rem; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
label, legend {
  font-family: var(--font-mono); font-size: .72rem; letter-spacing: .06em; text-transform: uppercase;
  color: var(--ink-soft); display: block; margin-bottom: .3rem;
}
fieldset { border: none; margin: 0; padding: 0; }
.checks { display: flex; flex-wrap: wrap; gap: .4rem; }
.checks label {
  font-family: var(--font-body); font-size: .9rem; letter-spacing: 0; text-transform: none; color: var(--ink);
  display: inline-flex; align-items: center; gap: .4rem; margin: 0; padding: .35rem .7rem;
  border: 1px solid var(--line); border-radius: 999px; cursor: pointer; background: var(--bg);
}
.checks input { width: auto; min-height: 0; margin: 0; accent-color: var(--accent); }
.checks label:has(input:checked) { border-color: var(--accent); background: var(--accent-soft); color: var(--accent); }
input, textarea, select {
  width: 100%; font-family: var(--font-body); font-size: .98rem; color: var(--ink); background: var(--bg);
  border: 1px solid var(--line); border-radius: 6px; padding: .6rem .7rem; min-height: 46px;
}
textarea { min-height: 110px; resize: vertical; }
.consent { display: flex; gap: .6rem; align-items: flex-start; font-size: .9rem; color: var(--ink-soft); }
.consent input { width: auto; min-height: 0; margin-top: .3rem; accent-color: var(--accent); }
.consent label { font: inherit; text-transform: none; letter-spacing: 0; color: inherit; margin: 0; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-help { font-size: .9rem; color: var(--ink-soft); margin: 0; }
.form-status { font-size: .95rem; font-weight: 600; color: var(--accent); overflow-wrap: anywhere; margin: 0; }
.form-status.error { color: var(--danger); }
.form-success { text-align: center; padding: 2rem 1rem; }
.form-success .tick { font-family: var(--font-display); font-size: 2.6rem; color: var(--accent); line-height: 1; }
.form-success h3 { font-family: var(--font-display); font-weight: 500; font-size: 1.5rem; margin: .6rem 0 .4rem; }
.form-success p { color: var(--ink-soft); margin: 0 auto; max-width: 40ch; }

input:focus, textarea:focus, select:focus, button:focus-visible, a:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 2px;
}

footer {
  margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid var(--line);
  font-family: var(--font-mono); font-size: .78rem; color: var(--ink-soft);
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: .5rem 1.5rem;
}
footer a { color: var(--ink-soft); }

/* simple content pages (privacy, thank you, 404) */
.page { max-width: 760px; margin: 0 auto; padding: 3rem 0; }
.page h1 { font-size: clamp(2rem, 4.5vw, 3rem); margin-bottom: 1rem; }
.page h2 { margin-top: 2rem; font-size: 1.35rem; }
.page p, .page li { color: var(--ink-soft); }

@media (max-width: 960px) {
  header.hero { grid-template-columns: 1fr; padding-top: 3rem; }
  .services { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .about-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .why-list, .process-grid { grid-template-columns: 1fr; }
}
@media (max-width: 680px) {
  .contact-grid, .field-row { grid-template-columns: 1fr; }
  .cal-table thead { display: none; }
  .cal-table, .cal-table tbody, .cal-table tr, .cal-table td { display: block; width: 100%; }
  .cal-table tr { border-bottom: 1px solid var(--line); padding: .6rem 0; }
  .cal-table td { border: none; padding: .2rem 1rem; }
}
@media (max-width: 540px) {
  .site-nav { align-items: flex-start; flex-direction: column; gap: 12px; }
  .nav-links { gap: 1rem; }
  .services, .about-grid { grid-template-columns: 1fr; }
  .hero-actions .btn { width: 100%; }
  header.hero { padding-block: 2.5rem; }
  h1 { font-size: 2.4rem; }
  form.inquiry { padding: 1rem; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}