/* miniraknare.co — clean static site stylesheet
   Vanilla CSS, no framework. Mobile-first. */

:root {
  --c-ink: #0f0f0f;
  --c-paper: #ffffff;
  --c-bg: #fafafa;
  --c-line: #e6e6e6;
  --c-muted: #6a6a6a;
  --c-accent: #b02f00;
  --c-accent-soft: #fdf2ed;
  --c-accent-hover: #8c2500;
  --c-key: #f3f3f3;
  --c-key-hover: #e8e8e8;
  --r: 8px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.04);
  --shadow: 0 4px 16px rgba(0,0,0,.06);
  --max: 1080px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  background: var(--c-bg);
  color: var(--c-ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Inter, sans-serif;
  font-size: 16px;
  line-height: 1.6;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--c-accent); text-decoration: underline; text-underline-offset: 3px; }
a:hover { color: var(--c-accent-hover); }
:focus-visible { outline: 2px solid var(--c-accent); outline-offset: 2px; border-radius: 4px; }

/* Skip link for keyboard / screen-reader users */
.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--c-ink); color: #fff;
  padding: 8px 12px; z-index: 999;
}
.skip-link:focus { left: 8px; top: 8px; }

/* Header */
.site-header {
  background: var(--c-paper);
  border-bottom: 1px solid var(--c-line);
  position: sticky; top: 0; z-index: 50;
}
.site-header .wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 16px 20px;
  display: flex; align-items: center;
  gap: 16px;
}
.site-header .brand { margin-right: auto; }
.brand {
  font-weight: 700; font-size: 1.15rem;
  color: var(--c-ink); text-decoration: none;
  display: inline-flex; align-items: center; gap: 8px;
}
.brand-mark {
  display: inline-block; width: 22px; height: 22px;
  background: var(--c-accent); border-radius: 4px;
  position: relative;
}
.brand-mark::before {
  content: "="; color: #fff; font-weight: 700;
  position: absolute; inset: 0;
  display: grid; place-items: center; font-size: 14px;
}
.nav { display: flex; gap: 4px; align-items: center; }
.nav a {
  color: var(--c-ink); text-decoration: none;
  padding: 8px 12px; border-radius: 6px;
  font-size: 0.95rem;
}
.nav a:hover { background: var(--c-key); }
.nav a[aria-current="page"] { color: var(--c-accent); font-weight: 600; }
.menu-toggle {
  display: none;
  background: none; border: 1px solid var(--c-line);
  width: 40px; height: 40px; border-radius: 6px;
  cursor: pointer; padding: 0;
  align-items: center; justify-content: center;
}
.menu-toggle span { display: block; width: 18px; height: 2px; background: var(--c-ink); position: relative; }
.menu-toggle span::before, .menu-toggle span::after {
  content: ""; position: absolute; left: 0; right: 0; height: 2px; background: var(--c-ink);
}
.menu-toggle span::before { top: -6px; }
.menu-toggle span::after { top: 6px; }

@media (max-width: 720px) {
  .nav {
    display: none;
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: stretch;
    background: var(--c-paper); border-bottom: 1px solid var(--c-line);
    padding: 8px 12px;
  }
  .nav.open { display: flex; }
  .nav a { padding: 12px; border-radius: 0; border-bottom: 1px solid var(--c-line); }
  .nav a:last-child { border-bottom: 0; }
  .menu-toggle { display: inline-flex; }
}

/* Layout */
main { max-width: var(--max); margin: 0 auto; padding: 28px 20px 56px; }
.lead { font-size: 1.1rem; color: var(--c-muted); margin-bottom: 24px; }

h1 { font-size: clamp(1.7rem, 3.5vw, 2.4rem); line-height: 1.15; margin: 0 0 16px; font-weight: 800; letter-spacing: -0.01em; }
h2 { font-size: clamp(1.3rem, 2.5vw, 1.65rem); line-height: 1.25; margin: 36px 0 12px; font-weight: 700; }
h3 { font-size: 1.1rem; margin: 22px 0 8px; font-weight: 700; }
p, ul, ol { margin: 0 0 14px; }
ul, ol { padding-left: 22px; }
li { margin-bottom: 6px; }
strong { font-weight: 700; }
em { font-style: italic; }

/* Article (long-form pages) */
.article { max-width: 720px; }
.article h2:first-of-type { margin-top: 8px; }

/* Calculator */
.calc {
  background: var(--c-paper);
  border-radius: 14px;
  box-shadow: var(--shadow);
  padding: 16px;
  max-width: 380px;
  margin: 0 auto 32px;
}
.calc-display {
  background: var(--c-ink);
  color: #fff;
  border-radius: 10px;
  padding: 16px 18px;
  text-align: right;
  margin-bottom: 14px;
  min-height: 88px;
  display: flex; flex-direction: column; justify-content: flex-end;
}
.calc-prev {
  font-size: 0.95rem; color: rgba(255,255,255,0.55);
  min-height: 1.2em;
  font-variant-numeric: tabular-nums;
}
.calc-main {
  font-size: 2.4rem; font-weight: 600;
  font-variant-numeric: tabular-nums;
  word-break: break-all;
  line-height: 1.1;
}
.calc-keys {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px;
}
.calc-keys button {
  appearance: none; border: 0; cursor: pointer;
  font: inherit; font-size: 1.15rem; font-weight: 600;
  background: var(--c-key);
  color: var(--c-ink);
  height: 56px; border-radius: 8px;
  transition: background 0.12s, transform 0.04s;
}
.calc-keys button:hover { background: var(--c-key-hover); }
.calc-keys button:active { transform: translateY(1px); }
.calc-keys .k-fn { background: #e8e8e8; }
.calc-keys .k-op { background: #f5e2d8; color: var(--c-accent); }
.calc-keys .k-op:hover { background: #f1d4c4; }
.calc-keys .k-equals { background: var(--c-accent); color: #fff; grid-row: span 1; }
.calc-keys .k-equals:hover { background: var(--c-accent-hover); }
.calc-keys .k-zero { grid-column: span 2; }

/* Cards / topic grid */
.topic-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px; margin: 16px 0 28px;
}
.topic-card {
  display: block; background: var(--c-paper);
  border: 1px solid var(--c-line); border-radius: var(--r);
  padding: 18px; text-decoration: none; color: var(--c-ink);
  transition: border-color 0.15s, transform 0.05s, box-shadow 0.15s;
}
.topic-card:hover {
  border-color: var(--c-accent); color: var(--c-ink);
  box-shadow: var(--shadow-sm);
}
.topic-card h3 { margin: 0 0 6px; color: var(--c-ink); }
.topic-card p { margin: 0; color: var(--c-muted); font-size: 0.95rem; }

/* Boxes & callouts */
.box {
  background: var(--c-accent-soft);
  border-left: 3px solid var(--c-accent);
  padding: 14px 16px; border-radius: 4px;
  margin: 18px 0;
}
.box p:last-child { margin-bottom: 0; }
.box-muted {
  background: #f3f3f3;
  border-left-color: var(--c-muted);
}

/* Footer */
.site-footer {
  background: var(--c-paper);
  border-top: 1px solid var(--c-line);
  padding: 32px 20px;
  font-size: 0.92rem;
  color: var(--c-muted);
}
.site-footer .wrap {
  max-width: var(--max); margin: 0 auto;
  display: grid; grid-template-columns: 1fr; gap: 24px;
}
.footer-cols {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 24px;
}
.footer-cols h4 {
  font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--c-ink); margin-bottom: 10px; font-weight: 700;
}
.footer-cols ul { list-style: none; padding: 0; margin: 0; }
.footer-cols li { margin-bottom: 6px; }
.footer-cols a { color: var(--c-muted); text-decoration: none; }
.footer-cols a:hover { color: var(--c-accent); }
.footer-bottom {
  padding-top: 16px;
  border-top: 1px solid var(--c-line);
  display: flex; flex-wrap: wrap; gap: 16px;
  justify-content: space-between; align-items: center;
  font-size: 0.85rem;
}

/* FAQ */
.faq details {
  border: 1px solid var(--c-line);
  border-radius: var(--r);
  padding: 0;
  margin-bottom: 8px;
  background: var(--c-paper);
}
.faq summary {
  padding: 14px 16px;
  cursor: pointer;
  font-weight: 600;
  list-style: none;
  position: relative;
  padding-right: 40px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; position: absolute; right: 14px; top: 50%;
  transform: translateY(-50%);
  font-size: 1.4rem; color: var(--c-accent);
  transition: transform 0.15s;
}
.faq details[open] summary::after { content: "−"; }
.faq details[open] summary { border-bottom: 1px solid var(--c-line); }
.faq details p, .faq details ul, .faq details ol { padding: 14px 16px; margin: 0; }

/* Breadcrumbs */
.crumbs {
  font-size: 0.88rem; color: var(--c-muted);
  margin-bottom: 16px;
}
.crumbs a { color: var(--c-muted); text-decoration: none; }
.crumbs a:hover { color: var(--c-accent); text-decoration: underline; }
.crumbs span[aria-current] { color: var(--c-ink); }

/* Tables (used on guide pages) */
table { border-collapse: collapse; width: 100%; margin: 18px 0; font-size: 0.95rem; }
th, td { border: 1px solid var(--c-line); padding: 10px 12px; text-align: left; }
th { background: var(--c-key); font-weight: 700; }

/* 404 */
.error-page { text-align: center; padding: 60px 20px; }
.error-page h1 { font-size: 4rem; margin-bottom: 8px; }
.error-page p { color: var(--c-muted); margin-bottom: 24px; }
.btn {
  display: inline-block;
  background: var(--c-accent); color: #fff;
  padding: 12px 22px; border-radius: 8px;
  text-decoration: none; font-weight: 600;
}
.btn:hover { background: var(--c-accent-hover); color: #fff; }

/* Cookie banner (matches existing cookie-consent.js) */
#cookie-banner {
  position: fixed; bottom: 16px; left: 16px; right: 16px;
  max-width: 480px; margin: 0 auto;
  background: var(--c-paper);
  border: 1px solid var(--c-line);
  border-radius: 12px; padding: 16px;
  box-shadow: var(--shadow);
  z-index: 100;
  display: none;
}
#cookie-banner.show { display: block; }
#cookie-banner p { font-size: 0.9rem; margin-bottom: 12px; }
#cookie-banner .actions { display: flex; gap: 8px; }
#cookie-banner button {
  flex: 1; appearance: none; border: 0; cursor: pointer;
  font: inherit; font-weight: 600;
  padding: 10px 16px; border-radius: 6px;
}
#cookie-banner .accept { background: var(--c-accent); color: #fff; }
#cookie-banner .accept:hover { background: var(--c-accent-hover); }
#cookie-banner .decline { background: var(--c-key); color: var(--c-ink); }

/* Advanced calculator — reviewer-approved design */
.calc-adv {
  max-width: 520px;
  margin: 28px auto 24px;
  padding: 18px;
  border-radius: 22px;
  background: #111;
  box-shadow: 0 18px 45px rgba(0,0,0,.16);
}

.calc-adv .calc-display {
  min-height: 86px;
  margin-bottom: 14px;
  padding: 16px 18px;
  border-radius: 16px;
  background: #050505;
  color: #fff;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  justify-content: center;
  overflow: hidden;
}

.calc-adv .calc-prev {
  min-height: 18px;
  font-size: .85rem;
  color: rgba(255,255,255,.55);
  word-break: break-all;
}

.calc-adv .calc-main {
  font-size: 2.15rem;
  font-weight: 800;
  line-height: 1.1;
  word-break: break-all;
}

.calc-adv-keys {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
}

.calc-adv-keys button {
  appearance: none;
  border: 0;
  min-height: 46px;
  border-radius: 12px;
  background: #f3f4f6;
  color: #111;
  font-size: .95rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: inset 0 -2px 0 rgba(0,0,0,.08);
}

.calc-adv-keys button:hover { filter: brightness(.97); }

.calc-adv-keys button:active {
  transform: translateY(1px);
  box-shadow: inset 0 1px 0 rgba(0,0,0,.12);
}

.calc-adv-keys .k-fn {
  background: #fff3ec;
  color: #8a2600;
}

.calc-adv-keys .k-op {
  background: #b02f00;
  color: #fff;
}

.calc-adv-keys .k-eq,
.calc-adv-keys .k-equals {
  background: #b02f00;
  color: #fff;
  grid-row: span 2;
}

@media (max-width: 560px) {
  .calc-adv {
    max-width: 100%;
    padding: 14px;
    border-radius: 18px;
  }

  .calc-adv-keys { gap: 6px; }

  .calc-adv-keys button {
    min-height: 42px;
    border-radius: 10px;
    font-size: .82rem;
  }

  .calc-adv .calc-main { font-size: 1.8rem; }
}

/* Utility classes replacing former inline styles */
.article-wide { max-width: none; }
.intro-centered {
  color: var(--c-ink);
  font-size: 1.05rem;
  margin: 8px auto 24px;
  max-width: 720px;
  text-align: center;
}
.article-updated {
  color: var(--c-muted);
  font-size: .85rem;
  margin: -8px 0 16px;
}
.subtle-link {
  color: inherit;
  text-decoration: underline;
}
.compact-section-title {
  font-size: 1.2rem;
  margin-top: 0;
}
.flush-title { margin-top: 0; }
.flush-list { margin-bottom: 0; }
.no-margin { margin: 0; }
.contact-form {
  background: var(--c-paper);
  border: 1px solid var(--c-line);
  border-radius: var(--r);
  margin-bottom: 24px;
  padding: 20px;
}
.contact-form .form-row { margin-bottom: 14px; }
.contact-form label {
  display: block;
  font-weight: 600;
  margin-bottom: 4px;
}
.contact-form input,
.contact-form textarea {
  border: 1px solid var(--c-line);
  border-radius: 6px;
  font: inherit;
  padding: 10px;
  width: 100%;
}
.contact-form textarea { resize: vertical; }

#back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 60;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  padding: 0;
  border: 1px solid var(--c-line);
  border-radius: 50%;
  background: var(--c-paper);
  color: var(--c-ink);
  box-shadow: var(--shadow);
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity .2s ease, transform .2s ease, background .15s ease, color .15s ease, border-color .15s ease;
}
#back-to-top.show { opacity: 1; pointer-events: auto; transform: translateY(0); }
#back-to-top:hover { background: var(--c-accent); color: #fff; border-color: var(--c-accent); }
#back-to-top:focus-visible { outline: 2px solid var(--c-accent); outline-offset: 3px; }
#back-to-top svg { display: block; }
body:has(#cookie-banner.show) #back-to-top { bottom: 140px; }
@media (max-width: 480px) {
  #back-to-top { right: 16px; bottom: 16px; }
  body:has(#cookie-banner.show) #back-to-top { bottom: 150px; }
}
@media (prefers-reduced-motion: reduce) {
  #back-to-top { transition: opacity .15s linear; transform: none; }
  #back-to-top.show { transform: none; }
}

.search-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; padding: 0;
  background: none; border: 1px solid var(--c-line);
  border-radius: 6px; color: var(--c-ink);
  cursor: pointer;
  order: 99;
  transition: background .15s ease, color .15s ease, border-color .15s ease;
}
.search-toggle:hover { background: var(--c-accent); color: #fff; border-color: var(--c-accent); }
.search-toggle:focus-visible { outline: 2px solid var(--c-accent); outline-offset: 2px; }
.search-toggle svg { display: block; }

.search-overlay {
  position: fixed; inset: 0;
  background: rgba(15, 15, 15, 0.45);
  z-index: 80;
  display: none;
  padding: 80px 16px 16px;
  overflow-y: auto;
}
.search-overlay.open { display: block; }
.search-modal {
  max-width: 640px; margin: 0 auto;
  background: var(--c-paper);
  border-radius: 12px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.25);
  overflow: hidden;
}
.search-modal-input {
  display: flex; align-items: center; gap: 10px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--c-line);
}
.search-modal-input svg { flex: 0 0 auto; color: var(--c-muted); }
.search-modal-input input {
  flex: 1; min-width: 0;
  font: inherit; font-size: 1rem;
  border: 0; outline: 0; background: transparent;
  color: var(--c-ink);
  padding: 4px 0;
}
.search-modal-close {
  background: none; border: 0; padding: 4px 8px;
  font: inherit; font-size: 0.85rem;
  color: var(--c-muted);
  cursor: pointer;
  border-radius: 4px;
}
.search-modal-close:hover { background: var(--c-key); color: var(--c-ink); }
.search-modal-close kbd {
  font: inherit; font-size: 0.75rem;
  background: var(--c-key); border: 1px solid var(--c-line);
  border-radius: 4px; padding: 1px 5px;
}
.search-results {
  list-style: none; padding: 8px; margin: 0;
  max-height: 60vh; overflow-y: auto;
}
.search-results:empty { display: none; }
.search-results li a {
  display: block; padding: 10px 12px;
  border-radius: 6px;
  color: var(--c-ink); text-decoration: none;
}
.search-results li a:hover,
.search-results li.active a {
  background: var(--c-accent-soft);
  color: var(--c-ink);
}
.search-results .r-title {
  font-weight: 600; font-size: 0.98rem;
  margin-bottom: 2px;
}
.search-results .r-desc {
  font-size: 0.88rem; color: var(--c-muted);
  line-height: 1.4;
}
.search-results mark {
  background: var(--c-accent-soft); color: var(--c-accent);
  padding: 0 1px; border-radius: 2px;
}
.search-empty {
  padding: 24px 16px;
  text-align: center; color: var(--c-muted);
  font-size: 0.92rem;
}
@media (max-width: 480px) {
  .search-overlay { padding: 60px 12px 12px; }
}
@media (prefers-reduced-motion: reduce) {
  .search-toggle { transition: none; }
}