/* Aeoria Development — cool technical studio look. Not lime/Syne. */
:root {
  --bg: #f2f4f7;
  --bg-elev: #ffffff;
  --ink: #0b1220;
  --ink-soft: #3a4558;
  --line: #d5dbe6;
  --accent: #1f5f8b;
  --accent-soft: #e8f1f8;
  --mark: #5b9fd4;
  --ok: #1a6b4a;
  --warn: #8a5a12;
  --radius: 10px;
  --font: "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, Menlo, monospace;
  --max: 1080px;
  --pad: clamp(1rem, 3vw, 1.75rem);
}

*,
*::before,
*::after {
  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;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1.05rem;
  line-height: 1.55;
  color: var(--ink);
  background:
    linear-gradient(180deg, #e8eef5 0%, var(--bg) 220px),
    var(--bg);
  min-height: 100vh;
}

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

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

.wrap {
  width: min(var(--max), 100% - 2 * var(--pad));
  margin-inline: auto;
  padding-bottom: 3rem;
}

.site-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.25rem;
  padding: 1.15rem 0 1rem;
  border-bottom: 1px solid var(--line);
  margin-bottom: 1.5rem;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 0.45rem;
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.brand .mark {
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1rem;
  font-size: 0.92rem;
}

.nav a {
  color: var(--ink-soft);
  text-decoration: none;
}

.nav a:hover,
.nav a[aria-current="page"] {
  color: var(--ink);
}

.lang-switch {
  font-family: var(--mono);
  font-size: 0.78rem;
}

.breadcrumbs {
  font-size: 0.88rem;
  color: var(--ink-soft);
  margin: 0 0 1.25rem;
}

.breadcrumbs a {
  color: var(--ink-soft);
  text-decoration: none;
}

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

.hero {
  display: grid;
  gap: 1.5rem;
  margin-bottom: 2rem;
  padding: 0.25rem 0 0.5rem;
}

@media (min-width: 860px) {
  .hero.split {
    grid-template-columns: 1.2fr 0.8fr;
    align-items: start;
  }
}

.eyebrow {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.65rem;
}

h1 {
  font-size: clamp(1.85rem, 4.2vw, 2.65rem);
  line-height: 1.15;
  letter-spacing: -0.03em;
  font-weight: 600;
  margin: 0 0 0.85rem;
}

h2 {
  font-size: clamp(1.25rem, 2.4vw, 1.5rem);
  letter-spacing: -0.02em;
  margin: 2rem 0 0.75rem;
}

h3 {
  font-size: 1.05rem;
  margin: 1.35rem 0 0.45rem;
}

.lead {
  font-size: 1.12rem;
  color: var(--ink-soft);
  max-width: 42rem;
  margin: 0 0 1.25rem;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin: 1rem 0 0.25rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.7rem 1.05rem;
  border-radius: 8px;
  border: 1px solid transparent;
  font: inherit;
  font-weight: 560;
  font-size: 0.98rem;
  text-decoration: none;
  cursor: pointer;
}

.btn-primary {
  background: var(--ink);
  color: #f5f7fa;
}

.btn-primary:hover {
  background: var(--accent);
  color: #fff;
}

.btn-secondary {
  background: var(--bg-elev);
  color: var(--ink);
  border-color: var(--line);
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.panel {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.15rem 1.25rem;
}

.panel h2:first-child,
.panel h3:first-child {
  margin-top: 0;
}

.diagram {
  font-family: var(--mono);
  font-size: 0.82rem;
  line-height: 1.45;
  color: var(--ink-soft);
  background: var(--accent-soft);
  border: 1px dashed #b7c9da;
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  white-space: pre-wrap;
}

.grid {
  display: grid;
  gap: 0.9rem;
  margin: 1.25rem 0;
}

@media (min-width: 700px) {
  .grid.cols-3 {
    grid-template-columns: repeat(3, 1fr);
  }
  .grid.cols-2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

.card {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
}

.card h3 {
  margin-top: 0;
}

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

.prose p,
.prose li {
  max-width: 44rem;
}

.prose ul,
.prose ol {
  padding-left: 1.2rem;
}

.prose li {
  margin: 0.35rem 0;
}

.callout {
  background: var(--accent-soft);
  border-left: 3px solid var(--accent);
  padding: 0.9rem 1rem;
  margin: 1.25rem 0;
  border-radius: 0 8px 8px 0;
}

.callout p {
  margin: 0;
}

.muted {
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.table-wrap {
  overflow-x: auto;
  margin: 1.25rem 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  background: var(--bg-elev);
}

th,
td {
  text-align: left;
  padding: 0.7rem 0.8rem;
  border: 1px solid var(--line);
  vertical-align: top;
}

th {
  background: #e8edf3;
  font-weight: 600;
}

.product-list {
  list-style: none;
  padding: 0;
  margin: 1rem 0;
  display: grid;
  gap: 0.55rem;
}

.product-list li {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.7rem 0.9rem;
  max-width: none;
}

.product-list a {
  font-weight: 560;
  text-decoration: none;
}

.product-list span {
  display: block;
  color: var(--ink-soft);
  font-size: 0.9rem;
  margin-top: 0.15rem;
}

.quiz-card {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem;
  max-width: 36rem;
}

.quiz-options {
  display: grid;
  gap: 0.55rem;
  margin: 0.85rem 0;
}

.option {
  display: block;
  padding: 0.75rem 0.95rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fafbfc;
  color: var(--ink);
  text-decoration: none;
  font-weight: 500;
}

.option:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--ink);
}

.related {
  margin: 2.5rem 0 1rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
}

.related h2 {
  margin-top: 0;
  font-size: 1.1rem;
}

.related a {
  display: block;
  margin: 0.35rem 0;
}

.site-footer {
  margin-top: 3rem;
  padding-top: 1.35rem;
  border-top: 1px solid var(--line);
  font-size: 0.9rem;
  color: var(--ink-soft);
}

.footer-grid {
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 720px) {
  .footer-grid {
    grid-template-columns: 1.2fr 1fr 1fr;
  }
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 0.9rem;
}

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

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

.footer-note {
  margin-top: 1.25rem;
  font-size: 0.85rem;
}

.rule-list {
  margin: 0.75rem 0;
  padding: 0;
  list-style: none;
}

.rule-list li {
  position: relative;
  padding-left: 1.1rem;
  margin: 0.45rem 0;
}

.rule-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 0.45rem;
  height: 0.45rem;
  background: var(--mark);
  border-radius: 1px;
}

.badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.2rem 0.45rem;
  border-radius: 4px;
  background: #e4ebf3;
  color: var(--ink-soft);
}

svg.hero-art {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: #0b1220;
}

.skip {
  position: absolute;
  left: -9999px;
}

.skip:focus {
  left: var(--pad);
  top: 0.5rem;
  z-index: 10;
  background: #fff;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--line);
}

/* Price calculator */
.calc-layout {
  display: grid;
  gap: 1.25rem;
  margin: 0 0 5.5rem;
}

@media (min-width: 900px) {
  .calc-layout {
    grid-template-columns: 1.4fr 0.9fr;
    align-items: start;
    margin-bottom: 2rem;
  }
}

.calc-panel {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.15rem 1.2rem;
}

.calc-panel + .calc-panel {
  margin-top: 0.9rem;
}

.calc-panel h2 {
  margin: 0 0 0.85rem;
  font-size: 1.05rem;
}

.calc-help {
  margin: 0.35rem 0 0.85rem;
  color: var(--ink-soft);
  font-size: 0.92rem;
  max-width: none;
}

.calc-choice {
  display: grid;
  gap: 0.55rem;
}

#calc [hidden] {
  display: none !important;
}

.calc-choice label,
.calc-toggle {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
  padding: 0.85rem 0.95rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fafbfc;
  cursor: pointer;
  font-weight: 500;
  min-height: 3rem;
}

.calc-choice label:has(input:checked),
.calc-toggle:has(input:checked) {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.calc-choice input,
.calc-toggle input {
  width: 1.15rem;
  height: 1.15rem;
  margin-top: 0.15rem;
  flex-shrink: 0;
  accent-color: var(--accent);
}

.calc-choice .calc-price,
.calc-toggle .calc-price {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 0.88rem;
  color: var(--ink-soft);
  white-space: nowrap;
}

.calc-toggle-text {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  flex: 1;
  min-width: 0;
}

.calc-toggle-text small {
  font-weight: 400;
  color: var(--ink-soft);
  font-size: 0.88rem;
}

.calc-stepper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
  padding: 0.75rem 0.1rem;
}

.calc-stepper-label {
  flex: 1 1 10rem;
  font-weight: 500;
}

.calc-stepper-controls {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.calc-stepper button {
  width: 2.6rem;
  height: 2.6rem;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--bg-elev);
  color: var(--ink);
  font: inherit;
  font-size: 1.25rem;
  font-weight: 600;
  cursor: pointer;
  line-height: 1;
}

.calc-stepper button:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.calc-stepper output,
.calc-stepper [data-out] {
  display: inline-flex;
  min-width: 2.4rem;
  justify-content: center;
  font-family: var(--mono);
  font-weight: 500;
  font-size: 1.1rem;
}

.calc-stepper input[type="number"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
  width: 1px;
  height: 1px;
}

.calc-included {
  margin: 0.75rem 0 0;
  padding: 0.75rem 0.9rem;
  background: #e8f3ee;
  border: 1px solid #b7d4c6;
  border-radius: 8px;
  color: var(--ok);
  font-size: 0.95rem;
}

.calc-included p {
  margin: 0;
  max-width: none;
}

.calc-receipt {
  margin: 0.75rem 0 0;
  font-size: 0.92rem;
  color: var(--ink-soft);
  max-width: none;
}

.calc-summary {
  position: sticky;
  top: 0.75rem;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.15rem 1.2rem;
  box-shadow: 0 8px 24px rgba(11, 18, 32, 0.06);
}

.calc-summary-label {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 0.35rem;
}

.calc-total {
  font-size: clamp(1.85rem, 4vw, 2.35rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  margin: 0;
  line-height: 1.1;
}

.calc-monthly {
  margin: 0.45rem 0 0;
  font-size: 1.05rem;
  color: var(--ink-soft);
}

.calc-breakdown {
  margin: 0.9rem 0;
  display: grid;
  gap: 0.35rem;
  font-size: 0.92rem;
}

.calc-line {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.25rem 0;
  border-bottom: 1px dashed var(--line);
}

.calc-line:last-child {
  border-bottom: 0;
}

.calc-line-amt {
  font-family: var(--mono);
  white-space: nowrap;
}

.calc-disclaimer {
  margin: 0.85rem 0 0;
  font-size: 0.9rem;
  color: var(--ink-soft);
  max-width: none;
}

.calc-sticky {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.96);
  border-top: 1px solid var(--line);
  padding: 0.75rem var(--pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  backdrop-filter: blur(8px);
}

.calc-sticky-total {
  font-weight: 600;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}

.calc-sticky-meta {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  min-width: 0;
}

.calc-sticky-meta small {
  color: var(--ink-soft);
  font-size: 0.82rem;
}

.calc-sticky .btn {
  flex-shrink: 0;
  min-height: 2.75rem;
  padding-inline: 1rem;
}

@media (min-width: 900px) {
  .calc-sticky {
    display: none;
  }
}

.calc-noscript {
  margin: 1rem 0;
  padding: 1rem;
  background: var(--accent-soft);
  border-radius: var(--radius);
  border: 1px solid #b7c9da;
}

.calc-badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.2rem 0.45rem;
  border-radius: 4px;
  background: var(--accent-soft);
  color: var(--accent);
  margin-bottom: 0.5rem;
}