:root {
  color-scheme: light;
  --bg: #f7f4ef;
  --surface: #ffffff;
  --surface-soft: #fffaf2;
  --text: #17212b;
  --muted: #5f6c7b;
  --border: #e7dece;
  --accent: #d97706;
  --accent-dark: #92400e;
  --accent-soft: #fff7ed;
  --success: #166534;
  --success-bg: #f0fdf4;
  --warning-bg: #fff7ed;
  --warning-border: #fed7aa;
  --danger-bg: #fef2f2;
  --shadow: 0 24px 70px rgba(23, 33, 43, 0.12);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --content: min(1160px, calc(100% - 32px));
  --reading: min(780px, calc(100% - 32px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(217, 119, 6, 0.18), transparent 34rem),
    radial-gradient(circle at 90% 10%, rgba(23, 33, 43, 0.08), transparent 28rem),
    linear-gradient(135deg, #fffaf3, var(--bg));
}

img, svg { max-width: 100%; }
a { color: inherit; }
code {
  padding: 0.12rem 0.35rem;
  border-radius: 0.45rem;
  background: #f3eadc;
  color: var(--accent-dark);
}
textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 12px;
  background: #fff;
  color: var(--text);
  font: inherit;
  resize: vertical;
}

.skip-link {
  position: absolute;
  top: 8px;
  left: 8px;
  z-index: 50;
  transform: translateY(-160%);
  padding: 10px 14px;
  border-radius: 999px;
  background: var(--text);
  color: #fff;
  font-weight: 800;
}
.skip-link:focus { transform: translateY(0); }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(16px);
  background: rgba(247, 244, 239, 0.82);
  border-bottom: 1px solid rgba(231, 222, 206, 0.7);
}
.nav-shell {
  width: var(--content);
  min-height: 72px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.brand, .site-nav, .nav-actions {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.brand {
  text-decoration: none;
  font-weight: 950;
  letter-spacing: -0.035em;
}
.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: var(--text);
  color: #fff;
  box-shadow: 0 12px 26px rgba(23, 33, 43, 0.18);
}
.site-nav {
  flex-wrap: wrap;
  justify-content: flex-end;
}
.site-nav a, .nav-actions a {
  text-decoration: none;
  color: var(--muted);
  font-weight: 850;
  font-size: 0.94rem;
}
.site-nav a:hover, .nav-actions a:hover { color: var(--accent-dark); }

.hero-section, .calculator-layout, .content-band, .site-footer, .docs-page, .admin-page, .article-page {
  width: var(--content);
  margin: 0 auto;
}
.hero-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  padding: 44px 0 20px;
}
.expanded-hero { padding-top: 54px; }
.hero-copy { max-width: 900px; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.7);
  color: var(--accent-dark);
  font-size: 0.875rem;
  font-weight: 950;
}
h1 {
  margin: 18px 0 14px;
  max-width: 12ch;
  font-size: clamp(2.6rem, 10.5vw, 6.85rem);
  line-height: 0.88;
  letter-spacing: -0.085em;
}
h2, h3 {
  letter-spacing: -0.035em;
  line-height: 1.05;
}
.hero-copy p, .page-hero p {
  max-width: 70ch;
  color: var(--muted);
  font-size: clamp(1rem, 3vw, 1.2rem);
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.calculator-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  padding: 12px 0 28px;
}
.calculator-card, .side-panel > *, .info-grid > article, .admin-card, .docs-card, .content-card, .mini-card, .form-card, .cta-panel {
  border: 1px solid rgba(231, 222, 206, 0.92);
  background: rgba(255, 255, 255, 0.88);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}
.calculator-card { padding: clamp(18px, 4vw, 30px); }
.form-grid { display: grid; gap: 16px; }
.field-group { display: grid; gap: 8px; }
.full-span { grid-column: 1 / -1; }
.hidden-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
label, .label-text { font-size: 0.95rem; font-weight: 900; }
input, select {
  width: 100%;
  min-height: 50px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 11px 12px;
  background: #fff;
  color: var(--text);
  font: inherit;
}
input:focus, select:focus, textarea:focus, button:focus-visible, a:focus-visible {
  outline: 3px solid rgba(217, 119, 6, 0.38);
  outline-offset: 3px;
}
.time-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.quick-row { display: flex; flex-wrap: wrap; gap: 8px; }
button, .button-link {
  border: 0;
  border-radius: 999px;
  padding: 11px 16px;
  font: inherit;
  font-weight: 900;
  text-decoration: none;
  cursor: pointer;
  transition: transform 160ms ease, box-shadow 160ms ease, background-color 160ms ease;
}
button:hover, .button-link:hover { transform: translateY(-1px); }
.primary-btn, .button-link.primary {
  min-height: 54px;
  background: var(--accent);
  color: #fff;
  box-shadow: 0 14px 30px rgba(217, 119, 6, 0.25);
}
.primary-btn { width: 100%; }
.button-link:not(.primary), .chip-btn {
  background: var(--accent-soft);
  color: var(--accent-dark);
  border: 1px solid var(--warning-border);
}
.result-card {
  margin-top: 20px;
  padding: 22px;
  border-radius: var(--radius-lg);
  border: 1px solid #bbf7d0;
  background: var(--success-bg);
}
.result-label {
  margin: 0;
  color: var(--success);
  font-size: 0.84rem;
  font-weight: 950;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.result-time {
  margin: 6px 0;
  font-size: clamp(3rem, 16vw, 6rem);
  line-height: 0.9;
  font-weight: 950;
  letter-spacing: -0.08em;
}
.result-detail { margin: 0; color: var(--muted); }
.side-panel { display: grid; gap: 16px; align-content: start; }
.note-card { padding: 20px; }
.note-card h2, .info-grid h2, .docs-card h2, .admin-card h2 { margin: 0 0 8px; font-size: 1.25rem; }
.note-card p, .info-grid p, .docs-card p { margin: 0 0 10px; color: var(--muted); }
.warning-card { background: rgba(255, 247, 237, 0.92); border-color: var(--warning-border); }
.success-card { background: var(--success-bg); border-color: #bbf7d0; }
.notice {
  padding: 18px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  margin: 0 0 18px;
}

.ad-slot {
  display: grid;
  place-items: center;
  min-height: 120px;
  padding: 14px;
  border: 1px dashed rgba(146, 64, 14, 0.45);
  border-radius: var(--radius-lg);
  background: rgba(255, 247, 237, 0.7);
  color: rgba(146, 64, 14, 0.75);
  font-size: 0.86rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.ad-slot-side { min-height: 260px; }
.content-band { padding: 12px 0 42px; }
.info-grid, .cards-grid, .link-card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 18px;
}
.info-grid > article, .content-card, .mini-card, .form-card, .cta-panel { padding: 20px; box-shadow: none; }
.content-card h3, .mini-card span { margin-top: 0; }
.content-card p, .mini-card strong { color: var(--muted); }
.content-card a, .prose a, .footer-grid a, .footer-bottom a { color: var(--accent-dark); font-weight: 900; }
.mini-card {
  display: grid;
  gap: 6px;
  text-decoration: none;
}
.mini-card span { font-weight: 950; color: var(--text); }
.mini-card:hover { border-color: var(--warning-border); transform: translateY(-1px); transition: transform 160ms ease, border-color 160ms ease; }

.page-hero { padding: 42px 0 24px; }
.narrow-hero { max-width: 900px; }
.page-hero h1 { max-width: 13ch; }
.compact-section { padding: 28px 0; }
.section-heading { max-width: 760px; }
.section-heading h2 { margin: 12px 0 8px; font-size: clamp(2rem, 6vw, 4rem); }
.section-heading p { color: var(--muted); }
.prose-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  padding-bottom: 42px;
}
.prose {
  max-width: 820px;
  font-size: 1.05rem;
}
.prose h2 { margin-top: 2rem; font-size: clamp(1.5rem, 4vw, 2.2rem); }
.prose h2:first-child { margin-top: 0; }
.prose p, .prose li { color: var(--muted); }
.prose ul { padding-left: 1.25rem; }
.legal-page { max-width: var(--reading); }
.sticky-aside { display: grid; gap: 16px; align-content: start; }
.cta-panel { margin-top: 10px; }

pre {
  overflow: auto;
  padding: 16px;
  border-radius: var(--radius-lg);
  background: #17212b;
  color: #fff;
  font-size: 0.88rem;
}
pre code { background: transparent; color: inherit; padding: 0; }
.responsive-table { width: 100%; overflow-x: auto; border-radius: var(--radius-lg); border: 1px solid var(--border); }
.chart-table { width: 100%; border-collapse: collapse; background: rgba(255,255,255,0.8); min-width: 520px; }
.chart-table caption { text-align: left; padding: 14px 16px; color: var(--muted); font-weight: 800; }
.chart-table th, .chart-table td { padding: 12px 16px; border-top: 1px solid var(--border); text-align: left; }
.chart-table th { background: var(--surface-soft); color: var(--text); }
.chart-table tr:hover td { background: rgba(255, 247, 237, 0.6); }

.faq-list { max-width: 900px; padding-bottom: 22px; }
details {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.82);
  padding: 16px 18px;
  margin: 12px 0;
}
summary { cursor: pointer; font-weight: 950; color: var(--text); }
details p { margin-bottom: 0; }
.contact-form { grid-template-columns: 1fr; }

.site-footer {
  padding: 34px 0 42px;
  color: var(--muted);
  border-top: 1px solid rgba(231, 222, 206, 0.8);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
.footer-grid nav {
  display: grid;
  gap: 8px;
  align-content: start;
}
.footer-grid h2 {
  margin: 0 0 6px;
  color: var(--text);
  font-size: 1rem;
}
.footer-grid a { text-decoration: none; }
.footer-brand { margin-bottom: 12px; }
.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
}
.privacy-link {
  width: fit-content;
  background: transparent;
  border: 0;
  color: var(--accent-dark);
  padding: 0;
  text-decoration: underline;
}

.cookie-banner {
  position: fixed;
  left: 16px;
  right: 16px;
  bottom: 16px;
  z-index: 60;
  display: grid;
  gap: 14px;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background: rgba(255,255,255,0.96);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}
.cookie-banner[hidden] { display: none; }
.cookie-banner h2 { margin: 0 0 6px; font-size: 1.15rem; }
.cookie-banner p { margin: 0; color: var(--muted); }
.cookie-actions { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }

.metric-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.metric { padding: 16px; border-radius: 18px; background: var(--surface-soft); border: 1px solid var(--border); }
.metric span { display: block; color: var(--muted); font-size: 0.82rem; font-weight: 900; text-transform: uppercase; letter-spacing: 0.08em; }
.metric strong { display: block; margin-top: 4px; font-size: clamp(1.6rem, 7vw, 3rem); letter-spacing: -0.06em; }
.chart-shell { min-height: 260px; }
.chart-shell svg { width: 100%; min-height: 240px; }
.bar-list { display: grid; gap: 10px; }
.bar-row { display: grid; grid-template-columns: minmax(72px, 140px) 1fr auto; gap: 10px; align-items: center; }
.bar-track { height: 12px; border-radius: 999px; background: #f3eadc; overflow: hidden; }
.bar-fill { height: 100%; border-radius: inherit; background: var(--accent); }
.admin-toolbar { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; align-items: center; margin-bottom: 20px; }
.docs-page, .admin-page { padding: 36px 0 56px; }
.docs-grid, .admin-grid { display: grid; grid-template-columns: 1fr; gap: 18px; }
.docs-card, .admin-card { padding: clamp(18px, 4vw, 26px); box-shadow: none; }

@media (min-width: 680px) {
  .contact-form { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-bottom { flex-direction: row; justify-content: space-between; align-items: center; }
  .link-card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 740px) {
  .hero-section { grid-template-columns: 1fr minmax(240px, 360px); align-items: end; }
  .calculator-layout { grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr); }
  .form-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .primary-btn, .result-card { grid-column: 1 / -1; }
  .info-grid, .cards-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .admin-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .admin-grid .wide { grid-column: 1 / -1; }
  .footer-grid { grid-template-columns: minmax(260px, 1.4fr) repeat(3, minmax(120px, 1fr)); }
  .cookie-banner { grid-template-columns: minmax(0, 1fr) auto; align-items: center; }
}
@media (min-width: 980px) {
  .prose-layout { grid-template-columns: minmax(0, 1fr) 330px; align-items: start; }
  .sticky-aside { position: sticky; top: 96px; }
}
@media (min-width: 1024px) {
  .calculator-layout { grid-template-columns: minmax(0, 1.35fr) 360px; }
  .metric-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .link-card-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 860px) {
  .nav-shell { align-items: flex-start; flex-direction: column; padding: 12px 0; }
  .site-nav { justify-content: flex-start; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}
.temperature-table { min-width: 760px; }
.temperature-table td:nth-child(3) { font-weight: 900; color: var(--accent-dark); }

/* Subtle UX motion that respects reduced-motion preferences. */
@keyframes mt-fade-up {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes mt-soft-pulse {
  0%, 100% { box-shadow: 0 14px 30px rgba(217, 119, 6, 0.22); }
  50% { box-shadow: 0 18px 38px rgba(217, 119, 6, 0.32); }
}
.hero-copy, .page-hero, .calculator-card, .note-card, .content-card, .mini-card, .admin-card, .docs-card, .cta-panel, .ad-slot {
  animation: mt-fade-up 520ms ease both;
}
.primary-btn, .button-link.primary { animation: mt-soft-pulse 5s ease-in-out infinite; }
.site-nav a, .footer-grid a, .content-card a, .prose a {
  text-underline-offset: 0.2em;
}
.site-nav a:hover, .footer-grid a:hover, .content-card a:hover, .prose a:hover {
  text-decoration-thickness: 0.16em;
}
.metric small {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.78rem;
}
.admin-section-heading, .ad-settings-toolbar, .ad-admin-card-head {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  justify-content: space-between;
}
.ad-settings-toolbar {
  margin: 16px 0;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface-soft);
}
.toggle-line {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  font-weight: 900;
}
.toggle-line input[type="checkbox"] {
  width: 22px;
  min-height: 22px;
  accent-color: var(--accent);
}
.ad-slot-editor {
  display: grid;
  gap: 16px;
}
.ad-admin-card {
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,0.74);
}
.ad-admin-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: 14px;
}
.ad-admin-grid label {
  display: grid;
  gap: 6px;
}
.custom-ad-card {
  display: grid;
  gap: 8px;
  max-width: 36rem;
  text-align: center;
  text-transform: none;
  letter-spacing: normal;
  color: var(--text);
}
.custom-ad-card span { color: var(--muted); font-weight: 700; }
.custom-ad-card a { color: var(--accent-dark); font-weight: 950; }
.compact-table { min-width: 860px; }
.faq-section {
  margin: 28px 0;
}
.faq-section > h2 {
  margin-bottom: 10px;
}
.callout-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin: 18px 0;
}
.callout-card {
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.78);
}
.callout-card h3 { margin-top: 0; }
@media (min-width: 740px) {
  .ad-admin-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .callout-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (prefers-reduced-motion: reduce) {
  .hero-copy, .page-hero, .calculator-card, .note-card, .content-card, .mini-card, .admin-card, .docs-card, .cta-panel, .ad-slot, .primary-btn, .button-link.primary {
    animation: none !important;
  }
}