/* =========================================================
   CalculatorCamp design system — white + red-pink premium UI
   ========================================================= */

:root {
  /* Color tokens */
  --color-white: #ffffff;
  --color-bg: #ffffff;
  --color-bg-soft: #fafafa;
  --color-bg-warm: #fff8f9;
  --color-bg-pink: #fff1f2;
  --color-bg-pink-soft: #fce7f3;

  --color-accent: #d81b60;
  --color-accent-strong: #e11d48;
  --color-accent-hover: #be123c;
  --color-accent-soft: rgba(216, 27, 96, 0.12);

  --color-text: #18181b;
  --color-text-secondary: #52525b;
  --color-text-muted: #71717a;

  --color-border: #e4e4e7;
  --color-border-accent: rgba(216, 27, 96, 0.22);

  --color-danger: #b42318;
  --color-danger-bg: #fef2f2;

  /* Elevation */
  --shadow-xs: 0 1px 2px rgba(24, 24, 27, 0.04);
  --shadow-sm: 0 4px 14px rgba(24, 24, 27, 0.05);
  --shadow-md: 0 8px 30px rgba(24, 24, 27, 0.06);
  --shadow-lg: 0 16px 40px rgba(24, 24, 27, 0.08);

  /* Radius / spacing / type */
  --radius-sm: 8px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-pill: 999px;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;

  --font-sans: "Plus Jakarta Sans", system-ui, -apple-system, sans-serif;
  --font-display: "Plus Jakarta Sans", system-ui, -apple-system, sans-serif;

  --header-h: 64px;
  --container: 1120px;
  --ease: 180ms ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.55;
  font-size: 1rem;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
}

button,
input,
select,
textarea {
  font: inherit;
}

.page-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(ellipse 55% 35% at 0% 0%, rgba(216, 27, 96, 0.05), transparent 60%),
    radial-gradient(ellipse 40% 30% at 100% 0%, rgba(225, 29, 72, 0.04), transparent 55%),
    linear-gradient(180deg, #ffffff 0%, #fafafa 45%, #fff8f9 100%);
}

.container {
  width: min(var(--container), calc(100% - 2rem));
  margin-inline: auto;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.icon {
  flex-shrink: 0;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-xs);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  height: var(--header-h);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--color-text);
  flex-shrink: 0;
}

.brand-mark {
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 7px;
  background: linear-gradient(145deg, var(--color-accent-strong), var(--color-accent-hover));
  box-shadow: 0 4px 12px rgba(216, 27, 96, 0.28);
}

.brand-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.03em;
}

.nav-cats {
  display: flex;
  align-items: center;
  gap: 0.15rem;
  margin-left: auto;
  overflow-x: auto;
  scrollbar-width: none;
}

.nav-cats::-webkit-scrollbar {
  display: none;
}

.nav-cats a {
  text-decoration: none;
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  font-weight: 550;
  padding: 0.4rem 0.65rem;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  transition: color var(--ease), background var(--ease);
}

.nav-cats a:hover,
.nav-cats a:focus-visible {
  color: var(--color-accent);
  background: var(--color-bg-pink);
  outline: none;
}

.search-form {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-shrink: 0;
}

.search-form input {
  width: 11.5rem;
  height: 2.35rem;
  padding: 0 0.9rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-white);
  color: var(--color-text);
  transition: border-color var(--ease), box-shadow var(--ease);
}

.search-form input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-soft);
}

.search-form input::placeholder {
  color: var(--color-text-muted);
}

.btn,
.search-form button,
.hero-search button,
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border: 0;
  cursor: pointer;
  font-weight: 650;
  letter-spacing: -0.01em;
  text-decoration: none;
  transition: background var(--ease), transform var(--ease), box-shadow var(--ease);
}

.search-form button,
.hero-search button,
.btn-primary {
  height: 2.35rem;
  padding: 0 1.05rem;
  border-radius: var(--radius-md);
  background: var(--color-accent);
  color: #fff;
  box-shadow: 0 4px 14px rgba(216, 27, 96, 0.22);
}

.search-form button:hover,
.hero-search button:hover,
.btn-primary:hover {
  background: var(--color-accent-hover);
}

.search-form button:active,
.hero-search button:active,
.btn-primary:active {
  transform: translateY(1px);
}

.search-form button:focus-visible,
.hero-search button:focus-visible,
.btn-primary:focus-visible,
.nav-toggle:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.nav-toggle {
  display: none;
  width: 2.35rem;
  height: 2.35rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-white);
  color: var(--color-text);
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.mobile-nav {
  display: none;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-white);
  padding: 0.75rem 0 1rem;
}

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

.mobile-nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 0.75rem;
}

.mobile-nav-links a {
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  padding: 0.45rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-bg-soft);
}

.mobile-nav-links a:hover {
  color: var(--color-accent);
  border-color: var(--color-border-accent);
  background: var(--color-bg-pink);
}

.mobile-search {
  display: flex;
  gap: 0.4rem;
}

.mobile-search input {
  flex: 1;
  min-width: 0;
  height: 2.5rem;
  padding: 0 0.9rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.mobile-search input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-soft);
}

.mobile-search button {
  height: 2.5rem;
  padding: 0 1rem;
  border: 0;
  border-radius: var(--radius-md);
  background: var(--color-accent);
  color: #fff;
  font-weight: 650;
}

/* ---------- Main / alerts ---------- */
.main {
  padding: var(--space-8) 0 var(--space-12);
}

.flash-list {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-5);
}

.flash {
  padding: 0.85rem 1rem;
  border-radius: var(--radius-md);
  border: 1px solid #fecdd3;
  background: var(--color-bg-pink);
  color: #9f1239;
}

.flash-error {
  background: var(--color-danger-bg);
  border-color: #fecaca;
  color: var(--color-danger);
}

/* ---------- Hero ---------- */
.hero {
  padding: var(--space-8) 0 var(--space-6);
  max-width: 40rem;
}

.hero-brand {
  margin: 0 0 var(--space-2);
  font-family: var(--font-display);
  font-size: clamp(2.35rem, 5.5vw, 3.25rem);
  font-weight: 800;
  letter-spacing: -0.05em;
  line-height: 1.05;
  color: var(--color-text);
}

.hero-brand span {
  color: var(--color-accent);
}

.hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2.4vw, 1.4rem);
  font-weight: 550;
  letter-spacing: -0.02em;
  color: var(--color-text-secondary);
  line-height: 1.35;
}

.hero-lead {
  margin: var(--space-4) 0 var(--space-5);
  color: var(--color-text-muted);
  font-size: 1.02rem;
  max-width: 36rem;
}

.hero-search {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  max-width: 28rem;
}

.hero-search input {
  flex: 1;
  min-width: 12rem;
  height: 2.75rem;
  padding: 0 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
  transition: border-color var(--ease), box-shadow var(--ease);
}

.hero-search input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-soft), var(--shadow-sm);
}

.hero-search button {
  height: 2.75rem;
  padding: 0 1.2rem;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: var(--space-5);
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.7rem;
  border-radius: var(--radius-pill);
  background: var(--color-bg-soft);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  font-size: 0.8rem;
  font-weight: 600;
  text-decoration: none;
  transition: border-color var(--ease), color var(--ease), background var(--ease);
}

.chip:hover {
  color: var(--color-accent);
  border-color: var(--color-border-accent);
  background: var(--color-bg-pink);
}

/* ---------- Sections ---------- */
.section {
  margin-top: var(--space-8);
}

.section-panel {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--space-6);
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}

.section-head h2,
.page-intro h1,
.seo-block h2,
.calc-workspace-title {
  margin: 0;
  font-family: var(--font-display);
  letter-spacing: -0.035em;
  font-weight: 750;
  color: var(--color-text);
}

.section-head h2 {
  font-size: 1.25rem;
}

.section-head p,
.page-intro > p {
  margin: 0.35rem 0 0;
  color: var(--color-text-muted);
  max-width: 42rem;
}

.text-link {
  color: var(--color-accent);
  font-weight: 650;
  text-decoration: none;
  white-space: nowrap;
  font-size: 0.925rem;
}

.text-link:hover {
  text-decoration: underline;
  color: var(--color-accent-hover);
}

.page-intro-badge {
  margin: 0.85rem 0 0;
}

.page-intro h1 {
  margin-top: var(--space-3);
  font-size: clamp(1.65rem, 3.5vw, 2.1rem);
}

.breadcrumb {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--color-text-muted);
  font-size: 0.875rem;
  font-weight: 550;
  text-decoration: none;
}

.breadcrumb:hover {
  color: var(--color-accent);
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-pill);
  background: var(--color-bg-pink-soft);
  color: var(--color-accent-hover);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.empty {
  color: var(--color-text-muted);
  margin: 0;
}

/* ---------- Grids / cards ---------- */
.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 0.85rem;
}

.category-card {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 1.1rem 1.15rem;
  text-decoration: none;
  color: inherit;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: border-color var(--ease), transform var(--ease), box-shadow var(--ease);
}

.category-card:hover {
  border-color: var(--color-border-accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.category-card-count {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.category-card-title {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  font-size: 1.02rem;
}

.category-card-desc {
  color: var(--color-text-muted);
  font-size: 0.88rem;
  line-height: 1.4;
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 0.85rem;
}

.tool-card {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.75rem;
  align-items: start;
  padding: 1rem 1.05rem;
  text-decoration: none;
  color: inherit;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: border-color var(--ease), transform var(--ease), box-shadow var(--ease), background var(--ease);
}

.tool-card:hover {
  border-color: var(--color-border-accent);
  background: var(--color-bg-warm);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.tool-card:hover .tool-card-arrow {
  color: var(--color-accent);
  transform: translateX(2px);
}

.tool-card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.15rem;
  height: 2.15rem;
  border-radius: var(--radius-sm);
  background: var(--color-bg-soft);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
}

.tool-card:hover .tool-card-icon {
  background: var(--color-bg-pink);
  border-color: var(--color-border-accent);
  color: var(--color-accent);
}

.tool-card-body {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  min-width: 0;
}

.tool-card-meta {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.tool-card-name {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  font-size: 0.98rem;
  line-height: 1.25;
}

.tool-card-desc {
  color: var(--color-text-muted);
  font-size: 0.86rem;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.tool-card-arrow {
  color: var(--color-text-muted);
  margin-top: 0.2rem;
  transition: color var(--ease), transform var(--ease);
}

/* ---------- Calculator workspace ---------- */
.calc-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 1.15rem;
  align-items: start;
}

.calc-form,
.result-panel {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 1.35rem 1.4rem;
}

.calc-form-head {
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.calc-form-head h2 {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.calc-form-head p {
  margin: 0.3rem 0 0;
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.field {
  margin-bottom: 1rem;
}

.field-row {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 0.75rem;
}

.field label {
  display: block;
  font-weight: 650;
  margin-bottom: 0.4rem;
  font-size: 0.9rem;
  color: var(--color-text);
}

.form-control {
  width: 100%;
  min-height: 2.85rem;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-white);
  color: var(--color-text);
  transition: border-color var(--ease), box-shadow var(--ease);
  appearance: none;
}

select.form-control {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2371717a' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2.25rem;
}

.form-control:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-soft);
}

.form-control::placeholder {
  color: #a1a1aa;
}

.help {
  margin: 0.35rem 0 0;
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

.field-error,
.form-errors {
  color: var(--color-danger);
  font-size: 0.875rem;
  margin: 0.35rem 0 0;
}

.calc-actions {
  position: sticky;
  bottom: 0;
  margin-top: 0.5rem;
  padding-top: 0.85rem;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0), #fff 35%);
}

.btn-primary {
  width: 100%;
  height: 2.9rem;
  font-size: 0.975rem;
}

.result-panel {
  min-height: 240px;
  display: flex;
  flex-direction: column;
}

.result-panel.has-result {
  border-color: var(--color-border-accent);
  background:
    linear-gradient(180deg, var(--color-bg-pink) 0%, var(--color-white) 42%);
}

.result-label {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.72rem;
  font-weight: 750;
  color: var(--color-text-muted);
}

.result-primary {
  margin: 0.65rem 0 1.1rem;
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 3vw, 1.9rem);
  font-weight: 750;
  letter-spacing: -0.035em;
  color: var(--color-accent-hover);
  line-height: 1.2;
}

.result-placeholder {
  margin: 0.85rem 0 0;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.result-details {
  list-style: none;
  padding: 0;
  margin: auto 0 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--color-border);
}

.result-details li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.925rem;
}

.result-details li:last-child {
  border-bottom: 0;
}

.result-details span {
  color: var(--color-text-muted);
}

.result-details strong {
  text-align: right;
  color: var(--color-text);
  font-weight: 650;
}

/* ---------- SEO / FAQ ---------- */
.seo-stack {
  margin-top: var(--space-8);
  display: grid;
  gap: 0.9rem;
}

.seo-block {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 1.25rem 1.35rem;
}

.seo-block h2 {
  font-size: 1.1rem;
}

.seo-block p {
  margin: 0.7rem 0 0;
  color: var(--color-text-secondary);
  max-width: 70ch;
  font-size: 0.95rem;
}

.seo-formula {
  margin: 0.9rem 0 0 !important;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-md);
  background: var(--color-bg-pink);
  border: 1px solid var(--color-border-accent);
  font-family: ui-monospace, "Cascadia Code", Consolas, monospace;
  font-size: 0.9rem;
  color: var(--color-accent-hover) !important;
}

.seo-tips {
  margin: 0.75rem 0 0;
  padding-left: 1.15rem;
  color: var(--color-text-secondary);
}

.seo-tips li {
  margin: 0.4rem 0;
}

.faq-list {
  margin: 0.75rem 0 0;
  display: grid;
  gap: 0.55rem;
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
  background: var(--color-bg-soft);
}

.faq-item strong {
  display: block;
  font-family: var(--font-display);
  letter-spacing: -0.02em;
  margin-bottom: 0.3rem;
  font-size: 0.95rem;
}

.faq-item p {
  margin: 0 !important;
  color: var(--color-text-muted) !important;
  font-size: 0.9rem !important;
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-10) 0 var(--space-6);
  background: var(--color-bg-soft);
  color: var(--color-text-muted);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 1.5rem 1.75rem;
}

.footer-brand p {
  margin: 0 0 0.5rem;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.footer-col h3 {
  margin: 0 0 0.35rem;
  font-size: 0.8rem;
  font-weight: 750;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text);
}

.footer-col a {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 550;
}

.footer-col a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  margin-top: 1.75rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
}

.footer-bottom p {
  margin: 0;
}

.keyword-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.9rem;
}

.keyword-row-block {
  margin-top: 0.85rem;
}

.keyword-chip {
  display: inline-flex;
  align-items: center;
  padding: 0.28rem 0.65rem;
  border-radius: var(--radius-pill);
  background: var(--color-bg-pink);
  border: 1px solid var(--color-border-accent);
  color: var(--color-accent-hover);
  font-size: 0.75rem;
  font-weight: 650;
}

.legal-page {
  max-width: 760px;
}

.legal-body {
  margin-top: 0.5rem;
}

.legal-body h2 {
  margin: 1.5rem 0 0.55rem;
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

.legal-body p,
.legal-body li {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
}

.legal-body ul {
  padding-left: 1.2rem;
}

.legal-body a {
  color: var(--color-accent);
  font-weight: 600;
}

.contact-aside-note {
  margin-top: 0.75rem;
}

.contact-aside-details {
  margin-top: 1rem;
}

.muted {
  font-size: 0.875rem;
}

@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 560px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

/* ---------- SEO / editorial components ---------- */
.skip-link {
  position: absolute;
  left: 0.75rem;
  top: -3rem;
  z-index: 100;
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-sm);
  background: var(--color-accent);
  color: var(--color-white);
  font-weight: 600;
  text-decoration: none;
  transition: top var(--ease);
}

.skip-link:focus {
  top: 0.75rem;
}

.breadcrumbs {
  margin-bottom: var(--space-4);
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

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

.breadcrumbs li + li::before {
  content: "/";
  margin-right: 0.35rem;
  color: var(--color-border);
}

.breadcrumbs a {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-weight: 550;
}

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

.breadcrumbs [aria-current="page"] {
  color: var(--color-text);
  font-weight: 600;
}

.category-intro p {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: 0.98rem;
  max-width: 75ch;
}

.category-intro p + p {
  margin-top: 0.85rem;
}

.seo-sources {
  margin: 0.7rem 0 0;
  padding-left: 1.2rem;
  color: var(--color-text-secondary);
  font-size: 0.92rem;
}

.seo-sources li + li {
  margin-top: 0.35rem;
}

.seo-sources a,
.seo-updated a,
.trust-card a {
  color: var(--color-accent);
  font-weight: 600;
}

.seo-disclaimer {
  margin-top: 0.9rem !important;
  padding: 0.75rem 0.9rem;
  border-left: 3px solid var(--color-accent);
  background: var(--color-bg-pink);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.9rem !important;
}

.seo-updated {
  font-size: 0.85rem !important;
  color: var(--color-text-muted) !important;
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 0.85rem;
}

.trust-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 1.1rem 1.15rem;
}

.trust-card h3 {
  margin: 0 0 0.4rem;
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: -0.02em;
}

.trust-card p {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: 0.92rem;
}

/* ---------- Guides ---------- */
.guide-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 0.85rem;
}

.guide-card {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  padding: 1.1rem 1.15rem;
  text-decoration: none;
  color: inherit;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: border-color var(--ease), transform var(--ease), box-shadow var(--ease);
}

.guide-card:hover {
  border-color: var(--color-border-accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.guide-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.guide-card-time,
.guide-card-date {
  font-size: 0.78rem;
  color: var(--color-text-muted);
}

.guide-card-title {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  font-size: 1.02rem;
  line-height: 1.35;
}

.guide-card-excerpt {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
}

.guide-meta {
  font-size: 0.875rem;
  color: var(--color-text-muted) !important;
}

.guide-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 1.25rem;
  align-items: start;
  margin-top: var(--space-6);
}

.guide-body {
  max-width: 78ch;
}

.guide-lead {
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  margin: 0 0 0.9rem;
}

.guide-section h2 {
  margin: 1.75rem 0 0.6rem;
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: -0.025em;
  scroll-margin-top: calc(var(--header-h) + 1rem);
}

.guide-section p,
.guide-section li {
  color: var(--color-text-secondary);
  font-size: 0.97rem;
  line-height: 1.65;
}

.guide-section p {
  margin: 0 0 0.85rem;
}

.guide-section ul {
  padding-left: 1.2rem;
  margin: 0 0 0.85rem;
}

.guide-section li + li {
  margin-top: 0.35rem;
}

.takeaways {
  margin: 1rem 0 0.5rem;
  padding: 0.95rem 1.1rem;
  border-radius: var(--radius-md);
  background: var(--color-bg-pink);
  border: 1px solid var(--color-border-accent);
}

.takeaways h2 {
  margin: 0 0 0.45rem;
  font-family: var(--font-display);
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.takeaways ul {
  margin: 0;
  padding-left: 1.1rem;
}

.takeaways li {
  color: var(--color-text);
  font-size: 0.93rem;
}

.table-wrap {
  overflow-x: auto;
  margin: 0.5rem 0 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  background: var(--color-white);
}

.data-table caption {
  caption-side: top;
  text-align: left;
  padding: 0.65rem 0.85rem;
  font-weight: 600;
  color: var(--color-text);
  background: var(--color-bg-soft);
  border-bottom: 1px solid var(--color-border);
}

.data-table th,
.data-table td {
  padding: 0.5rem 0.85rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}

.data-table th {
  font-size: 0.78rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  background: var(--color-bg-soft);
}

.data-table tbody tr:nth-child(even) {
  background: var(--color-bg-soft);
}

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

.guide-side {
  position: sticky;
  top: calc(var(--header-h) + 1rem);
  display: grid;
  gap: 0.85rem;
}

.guide-side .result-panel {
  min-height: 0;
}

.guide-side-links,
.guide-toc ol {
  margin: 0.5rem 0 0;
  padding-left: 0;
  list-style: none;
}

.guide-toc ol {
  counter-reset: toc;
}

.guide-side-links li + li,
.guide-toc li + li {
  margin-top: 0.4rem;
}

.guide-side-links a,
.guide-toc a {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.9rem;
  font-weight: 550;
  color: var(--color-text-secondary);
  text-decoration: none;
}

.guide-side-links a:hover,
.guide-toc a:hover {
  color: var(--color-accent);
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .nav-cats {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
    margin-left: auto;
  }

  .search-form {
    display: none;
  }
}

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

  .guide-side {
    position: static;
  }

  .guide-toc {
    display: none;
  }

  .result-panel {
    order: -1;
  }
}

@media (max-width: 560px) {
  :root {
    --header-h: 58px;
  }

  .main {
    padding-top: var(--space-5);
  }

  .hero {
    padding-top: var(--space-5);
  }

  .section-panel,
  .calc-form,
  .result-panel,
  .seo-block {
    padding: 1.1rem;
  }

  .field-row {
    grid-template-columns: 1fr;
  }

  .tool-grid,
  .category-grid {
    grid-template-columns: 1fr;
  }

  .section-head {
    flex-direction: column;
  }

  .btn-primary,
  .form-control,
  .hero-search input,
  .hero-search button,
  .mobile-search input,
  .mobile-search button {
    min-height: 3rem;
  }

  .calc-actions {
    position: sticky;
    bottom: 0.5rem;
    z-index: 5;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}