/* TaxPilot 2026 — stylesheet. Light-first, dark-aware, mobile-first. */

:root {
  --bg: #f7f9fa;
  --surface: #ffffff;
  --ink: #101828;
  --muted: #56657a;
  --line: #e3e8ee;
  --line-strong: #c6cfda;
  --accent: #0b7c72;
  --accent-ink: #085e56;
  --accent-soft: #e2f3f1;
  --warn-bg: #fff8e6;
  --warn-line: #eadfb9;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.05), 0 8px 28px rgba(16, 24, 40, 0.06);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1420;
    --surface: #16202e;
    --ink: #e8edf4;
    --muted: #93a1b4;
    --line: #253143;
    --line-strong: #3a4a60;
    --accent: #2fb3a6;
    --accent-ink: #5accc1;
    --accent-soft: #12352f;
    --warn-bg: #2a2313;
    --warn-line: #4a3f22;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 8px 28px rgba(0, 0, 0, 0.35);
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 20px; }

a { color: var(--accent-ink); }

/* ── header ─────────────────────────────────────────────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 40;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.nav-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 20px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--ink);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
}

.nav-links a:hover { color: var(--ink); }

.lang-switch {
  font-size: 0.8rem;
  font-weight: 600;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  padding: 5px 10px;
  text-decoration: none;
  color: var(--muted);
}

.lang-switch:hover { color: var(--ink); border-color: var(--ink); }

@media (max-width: 720px) {
  .nav-links a:not(.lang-switch) { display: none; }
}

/* ── intro ──────────────────────────────────────────────── */
.intro { padding: 40px 0 8px; }

.intro h1 {
  margin: 0 0 10px;
  font-size: clamp(1.6rem, 4.5vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  max-width: 21ch;
}

.intro p {
  margin: 0;
  color: var(--muted);
  max-width: 60ch;
  font-size: 1.02rem;
}

.intro .meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin-top: 14px;
  font-size: 0.82rem;
  color: var(--muted);
}

.intro .meta span::before {
  content: '✓';
  color: var(--accent);
  font-weight: 700;
  margin-right: 6px;
}

/* ── calculator ─────────────────────────────────────────── */
.calc {
  margin: 26px 0 8px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.calc-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
}

@media (max-width: 860px) {
  .calc-grid { grid-template-columns: 1fr; }
}

.calc-inputs { padding: 26px 26px 30px; }

.calc-results {
  padding: 26px 26px 30px;
  border-left: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface) 60%, var(--bg));
}

@media (max-width: 860px) {
  .calc-results { border-left: 0; border-top: 1px solid var(--line); }
}

/* country tabs */
.tabs {
  display: flex;
  border-bottom: 1px solid var(--line);
}

.tab {
  flex: 1;
  padding: 13px 8px;
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  border-bottom: 2px solid transparent;
}

.tab[aria-selected="true"] {
  color: var(--accent-ink);
  border-bottom-color: var(--accent);
}

.tab:hover { color: var(--ink); }

/* fields */
.field { margin-bottom: 16px; }

.field label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 6px;
}

.field input[type="number"],
.field select {
  width: 100%;
  padding: 11px 12px;
  font: inherit;
  font-size: 1rem;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: 8px;
}

.field input:focus,
.field select:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
  border-color: var(--accent);
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

@media (max-width: 480px) {
  .field-row { grid-template-columns: 1fr; }
}

.gross-input { position: relative; }

.gross-input input {
  font-size: 1.35rem !important;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  padding-right: 88px !important;
}

.gross-unit {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.85rem;
  color: var(--muted);
  font-weight: 600;
}

.check {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 0.92rem;
  color: var(--ink);
  padding: 4px 0;
  cursor: pointer;
}

.check input {
  width: 17px;
  height: 17px;
  accent-color: var(--accent);
  cursor: pointer;
}

/* result panel */
.result-headline {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 0 0 4px;
}

.result-net {
  font-size: clamp(2rem, 6vw, 2.7rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  color: var(--accent-ink);
  margin: 0;
  line-height: 1.1;
}

.result-net small {
  font-size: 0.95rem;
  color: var(--muted);
  font-weight: 600;
}

.result-sub {
  margin: 6px 0 0;
  font-size: 0.92rem;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.breakdown {
  width: 100%;
  border-collapse: collapse;
  margin-top: 18px;
  font-size: 0.92rem;
}

.breakdown th {
  text-align: left;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  font-weight: 600;
  padding: 8px 0 6px;
  border-bottom: 1px solid var(--line);
}

.breakdown th:last-child, .breakdown td:last-child {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.breakdown td {
  padding: 7px 0;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
}

.breakdown td:first-child { color: var(--muted); }

.breakdown tr.total td {
  font-weight: 700;
  color: var(--ink);
  border-bottom: 0;
  padding-top: 10px;
}

.mini-note {
  margin-top: 14px;
  font-size: 0.78rem;
  color: var(--muted);
  line-height: 1.5;
}

/* toggle monthly/yearly */
.seg {
  display: inline-flex;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  overflow: hidden;
}

.seg button {
  border: 0;
  background: transparent;
  font: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--muted);
  padding: 6px 12px;
  cursor: pointer;
}

.seg button[aria-pressed="true"] {
  background: var(--accent);
  color: #fff;
}

/* ── content sections ───────────────────────────────────── */
.section { padding: 46px 0 6px; }

.section h2 {
  font-size: clamp(1.3rem, 3vw, 1.7rem);
  font-weight: 750;
  letter-spacing: -0.02em;
  margin: 0 0 10px;
}

.section > .wrap > p, .section .lead {
  color: var(--muted);
  max-width: 70ch;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 22px;
}

@media (max-width: 860px) {
  .cards { grid-template-columns: 1fr; }
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
}

.card h3 {
  margin: 0 0 8px;
  font-size: 1.02rem;
  font-weight: 700;
}

.card p, .card li {
  margin: 0;
  font-size: 0.92rem;
  color: var(--muted);
}

.card ul { margin: 8px 0 0; padding-left: 18px; }
.card li { margin-bottom: 5px; }

/* data table (Krankenkassen etc.) */
.table-scroll {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  margin-top: 20px;
}

table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  min-width: 520px;
}

table.data th {
  text-align: left;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface) 55%, var(--bg));
}

table.data td {
  padding: 10px 16px;
  border-bottom: 1px solid var(--line);
}

table.data tr:last-child td { border-bottom: 0; }

table.data td.num {
  text-align: right;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}

table.data th.num { text-align: right; }

table.data tr.hl td { background: var(--accent-soft); }

/* FAQ */
.faq-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-top: 10px;
  padding: 4px 20px;
}

.faq-item summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 0.98rem;
  padding: 12px 0;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
  content: '+';
  font-size: 1.3rem;
  color: var(--accent);
  font-weight: 600;
}

.faq-item[open] summary::after { content: '–'; }

.faq-item p {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 0.94rem;
}

/* notice */
.notice {
  margin-top: 22px;
  background: var(--warn-bg);
  border: 1px solid var(--warn-line);
  border-radius: var(--radius);
  padding: 14px 18px;
  font-size: 0.85rem;
  color: var(--muted);
}

/* ── footer ─────────────────────────────────────────────── */
footer {
  margin-top: 56px;
  border-top: 1px solid var(--line);
  padding: 30px 0 40px;
  font-size: 0.88rem;
  color: var(--muted);
}

.footer-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 28px;
  align-items: center;
  justify-content: space-between;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
}

.footer-links a {
  color: var(--muted);
  text-decoration: none;
}

.footer-links a:hover { color: var(--ink); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}