:root {
  --color-ink: #102522;
  --color-muted: #5a6b67;
  --color-brand: #0f4c45;
  --color-brand-strong: #0a3833;
  --color-brand-soft: #dcefeb;
  --color-accent: #c9782d;
  --color-accent-strong: #a95f1f;
  --color-surface: #ffffff;
  --color-surface-alt: #f6f8f7;
  --color-border: #d8e0dd;
  --color-warning: #7a4a00;
  --color-error: #9b1c1c;
  --shadow-soft: 0 12px 30px rgba(16, 37, 34, 0.08);
  --radius: 8px;
  --container: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  background: var(--color-surface-alt);
  color: var(--color-ink);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.65;
}

img,
svg {
  max-width: 100%;
}

a {
  color: var(--color-brand);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--color-accent-strong);
}

button,
input,
select {
  font: inherit;
}

button,
a,
input,
select,
summary,
textarea {
  outline-offset: 4px;
}

:focus-visible {
  outline: 3px solid #f2b66d;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: 0.75rem;
  z-index: 1000;
  transform: translateY(-140%);
  background: var(--color-brand-strong);
  color: #fff;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(12px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0.85rem 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  min-width: 12rem;
  color: var(--color-ink);
  font-weight: 800;
  text-decoration: none;
}

.brand img {
  width: 198px;
  height: auto;
  display: block;
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: #fff;
  color: var(--color-ink);
  padding: 0.55rem 0.75rem;
  cursor: pointer;
}

.nav-toggle-icon {
  width: 1.2rem;
  height: 0.9rem;
  display: inline-grid;
  gap: 0.18rem;
}

.nav-toggle-icon span {
  display: block;
  height: 2px;
  background: currentColor;
}

.site-nav {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  display: none;
  background: #fff;
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-soft);
}

.site-nav.is-open {
  display: block;
}

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0.75rem 1rem 1rem;
  display: grid;
  gap: 0.25rem;
}

.site-nav a {
  display: block;
  border-radius: var(--radius);
  color: var(--color-ink);
  font-weight: 700;
  padding: 0.65rem 0.7rem;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  background: var(--color-brand-soft);
  color: var(--color-brand-strong);
}

main {
  min-height: 65vh;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1rem;
}

.section {
  padding: 3rem 0;
}

.section-tight {
  padding: 2rem 0;
}

.section-band {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.hero {
  background:
    linear-gradient(90deg, rgba(246, 248, 247, 0.96), rgba(246, 248, 247, 0.9)),
    repeating-linear-gradient(135deg, rgba(15, 76, 69, 0.08) 0, rgba(15, 76, 69, 0.08) 1px, transparent 1px, transparent 18px);
  border-bottom: 1px solid var(--color-border);
}

.hero-inner {
  display: grid;
  gap: 2rem;
  align-items: center;
  padding: 3.2rem 1rem 2.4rem;
}

.hero-copy {
  max-width: 720px;
}

.eyebrow {
  margin: 0 0 0.65rem;
  color: var(--color-brand);
  font-size: 0.93rem;
  font-weight: 800;
  text-transform: uppercase;
}

h1,
h2,
h3,
h4 {
  line-height: 1.2;
  margin: 0 0 0.8rem;
}

h1 {
  font-size: 2.3rem;
}

h2 {
  font-size: 1.75rem;
}

h3 {
  font-size: 1.2rem;
}

p {
  margin: 0 0 1rem;
}

.lead {
  color: var(--color-muted);
  font-size: 1.12rem;
  max-width: 760px;
}

.hero-actions,
.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.35rem;
}

.button,
button.button,
.secondary-button,
button.secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.8rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  padding: 0.68rem 1rem;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
}

.button {
  background: var(--color-accent);
  color: #fff;
}

.button:hover {
  background: var(--color-accent-strong);
  color: #fff;
}

.secondary-button {
  background: #fff;
  border-color: var(--color-border);
  color: var(--color-brand-strong);
}

.secondary-button:hover {
  border-color: var(--color-brand);
  background: var(--color-brand-soft);
  color: var(--color-brand-strong);
}

.hero-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  padding: 1.2rem;
}

.hero-panel-title {
  font-weight: 800;
  margin: 0 0 1rem;
}

.mini-ledger {
  display: grid;
  gap: 0.7rem;
}

.mini-ledger-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 0.55rem;
}

.mini-ledger-row strong {
  color: var(--color-brand);
}

.grid {
  display: grid;
  gap: 1rem;
}

.grid-2,
.grid-3,
.grid-4 {
  grid-template-columns: 1fr;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.15rem;
  box-shadow: 0 8px 20px rgba(16, 37, 34, 0.04);
}

.card p:last-child {
  margin-bottom: 0;
}

.card-link {
  display: block;
  height: 100%;
  color: inherit;
  text-decoration: none;
}

.card-link:hover {
  border-color: rgba(201, 120, 45, 0.55);
  box-shadow: var(--shadow-soft);
}

.card-action {
  display: inline-block;
  margin-top: 0.35rem;
  color: var(--color-brand);
  font-weight: 800;
  text-decoration: underline;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

.card-link:hover .card-action {
  color: var(--color-accent-strong);
}

.home-notes {
  margin-top: 1.5rem;
}

.home-notes > * {
  height: 100%;
}

.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 1rem 0;
  padding: 0;
  list-style: none;
}

.pill-list a,
.pill-list span {
  display: inline-flex;
  align-items: center;
  min-height: 2.35rem;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: #fff;
  color: var(--color-ink);
  padding: 0.35rem 0.75rem;
  text-decoration: none;
}

.pill-list a:hover {
  background: var(--color-brand-soft);
}

.ad-placeholder {
  display: grid;
  min-height: 120px;
  place-items: center;
  border: 1px dashed #9fb0ac;
  border-radius: var(--radius);
  background: #f0f4f2;
  color: var(--color-muted);
  font-size: 0.95rem;
  font-weight: 700;
  text-align: center;
}

.ad-placeholder.small {
  min-height: 90px;
}

.disclaimer,
.affiliate-note,
.privacy-note {
  border-left: 4px solid var(--color-accent);
  background: #fff8ef;
  border-radius: var(--radius);
  padding: 1rem;
  color: #3b3024;
}

.affiliate-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 800;
}

.affiliate-label,
.tag {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  background: var(--color-brand-soft);
  color: var(--color-brand-strong);
  font-size: 0.8rem;
  font-weight: 800;
  padding: 0.18rem 0.55rem;
}

.breadcrumb {
  color: var(--color-muted);
  font-size: 0.92rem;
  margin: 1rem 0 0;
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.breadcrumb li:not(:last-child)::after {
  content: "/";
  margin-left: 0.35rem;
  color: #84918d;
}

.content-layout {
  display: grid;
  gap: 1.5rem;
}

.content-main {
  display: grid;
  gap: 1.5rem;
}

.content-main article,
.article-block {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.25rem;
}

.content-main ul,
.content-main ol,
.article-block ul,
.article-block ol {
  padding-left: 1.25rem;
}

.sidebar {
  display: grid;
  align-content: start;
  gap: 1rem;
}

.toc {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem;
}

.toc ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.35rem;
}

.toc a {
  display: block;
  padding: 0.35rem 0;
  font-weight: 700;
  text-decoration: none;
}

.calculator-nav {
  position: sticky;
  top: 5rem;
}

.calculator {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.1rem;
  box-shadow: 0 8px 20px rgba(16, 37, 34, 0.04);
}

.calculator + .calculator {
  margin-top: 1.25rem;
}

.calculator h2 {
  font-size: 1.45rem;
}

.calculator-grid {
  display: grid;
  gap: 0.9rem;
  margin-top: 1rem;
}

.field {
  display: grid;
  gap: 0.35rem;
}

.field label,
.field legend {
  color: var(--color-ink);
  font-weight: 800;
}

.field small {
  color: var(--color-muted);
}

input,
select {
  width: 100%;
  min-height: 2.7rem;
  border: 1px solid #bac7c3;
  border-radius: var(--radius);
  background: #fff;
  color: var(--color-ink);
  padding: 0.55rem 0.65rem;
}

input[aria-invalid="true"],
select[aria-invalid="true"] {
  border-color: var(--color-error);
  box-shadow: 0 0 0 1px var(--color-error);
}

.field-error {
  min-height: 1.25rem;
  color: var(--color-error);
  font-size: 0.9rem;
  font-weight: 700;
}

.radio-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.55rem;
}

.radio-grid label {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.6rem;
}

.radio-grid input {
  width: auto;
  min-height: auto;
}

.result-box {
  min-height: 5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: #f7fbfa;
  padding: 1rem;
}

.result-box.is-success {
  border-color: #86b8ac;
}

.result-box.is-warning {
  border-color: #d8aa5f;
  background: #fffaf0;
}

.result-box.is-error {
  border-color: #d98c8c;
  background: #fff5f5;
}

.result-list {
  display: grid;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.result-list li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 0.45rem;
}

.result-list strong {
  text-align: right;
}

.formula {
  color: var(--color-muted);
  font-size: 0.95rem;
  margin-top: 0.75rem;
}

.calculator-context,
.comparison-note {
  border-left: 4px solid var(--color-brand);
  background: #f3f8f7;
  border-radius: var(--radius);
  color: var(--color-ink);
  padding: 0.95rem 1rem;
}

.calculator-context {
  margin: 1rem 0 0;
}

.comparison-box {
  display: grid;
  gap: 0.75rem;
  margin-top: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: #ffffff;
  padding: 1rem;
}

.comparison-box h4 {
  margin-bottom: 0;
  font-size: 1.05rem;
}

.comparison-box p {
  margin-bottom: 0;
}

.comparison-status {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 0.22rem 0.65rem;
  font-size: 0.86rem;
  font-weight: 800;
}

.comparison-low {
  border-color: #90b8ad;
  background: #eef7f4;
}

.comparison-normal {
  border-color: #b6c7c2;
  background: #f7faf9;
}

.comparison-high {
  border-color: #d6bd86;
  background: #fffaf0;
}

.comparison-tips {
  margin: 0;
  padding-left: 1.2rem;
}

.comparison-tips li + li {
  margin-top: 0.25rem;
}

.subscription-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.65rem;
  align-items: end;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.75rem;
  background: #fbfcfc;
}

.remove-row {
  min-height: 2.7rem;
}

.faq {
  display: grid;
  gap: 0.7rem;
}

.faq details {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.8rem 1rem;
}

.faq summary {
  cursor: pointer;
  font-weight: 800;
}

.faq p {
  margin: 0.7rem 0 0;
}

.site-footer {
  background: var(--color-brand-strong);
  color: #eaf5f2;
  margin-top: 3rem;
}

.footer-inner {
  display: grid;
  gap: 1.5rem;
  max-width: var(--container);
  margin: 0 auto;
  padding: 2.5rem 1rem;
}

.footer-inner a {
  color: #ffffff;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem 1rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.cookie-banner {
  position: fixed;
  z-index: 200;
  left: 1rem;
  right: 1rem;
  bottom: 1rem;
  display: none;
  max-width: 760px;
  margin: 0 auto;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  padding: 1rem;
}

.cookie-banner.is-visible {
  display: block;
}

.cookie-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1rem;
}

.cookie-modal {
  position: fixed;
  inset: 0;
  z-index: 210;
  display: none;
  place-items: center;
  background: rgba(16, 37, 34, 0.55);
  padding: 1rem;
}

.cookie-modal.is-visible {
  display: grid;
}

.cookie-dialog {
  width: min(100%, 620px);
  max-height: 92vh;
  overflow: auto;
  background: #fff;
  border-radius: var(--radius);
  padding: 1.1rem;
}

.cookie-choice {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.85rem;
  margin: 0.75rem 0;
}

.cookie-choice input {
  width: auto;
  min-height: auto;
}

.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;
}

@media (min-width: 560px) {
  h1 {
    font-size: 3rem;
  }

  .calculator-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .subscription-row {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr) auto;
  }
}

@media (min-width: 760px) {
  .grid-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .grid-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .hero-inner {
    grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
  }

  .footer-inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  }
}

@media (min-width: 960px) {
  .nav-toggle {
    display: none;
  }

  .site-nav {
    position: static;
    display: block;
    border: 0;
    box-shadow: none;
    background: transparent;
  }

  .site-nav ul {
    display: flex;
    align-items: center;
    gap: 0.2rem;
    padding: 0;
  }

  .site-nav a {
    padding: 0.55rem 0.65rem;
  }

  .content-layout {
    grid-template-columns: minmax(0, 1fr) 300px;
  }

  .content-main article,
  .article-block,
  .calculator {
    padding: 1.5rem;
  }
}

@media (max-width: 420px) {
  .brand img {
    width: 170px;
  }

  h1 {
    font-size: 2rem;
  }

  .result-list li {
    display: grid;
  }

  .result-list strong {
    text-align: left;
  }
}