/* CalcRabbit — one stylesheet for every page. Tokens first, then layout, then components. */

:root {
  --blue: #2FA9E8;
  --blue-deep: #1B7FC4;
  --navy: #12263A;
  --cream: #FAF8F4;
  --charcoal: #1A1A1A;
  --coral: #FF7A85;
  --light-blue: #7fd4ff;
  --white: #ffffff;
  --gradient: linear-gradient(135deg, #2FA9E8, #1B7FC4);
  --border: rgba(18, 38, 58, 0.08);
  --border-input: rgba(18, 38, 58, 0.16);
  --muted: rgba(18, 38, 58, 0.68);
  --faint: rgba(18, 38, 58, 0.55);
  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 1px 2px rgba(18, 38, 58, 0.04), 0 8px 24px rgba(18, 38, 58, 0.06);
  --shadow-dark: 0 1px 2px rgba(18, 38, 58, 0.2), 0 12px 32px rgba(18, 38, 58, 0.18);
  --heading: "Quicksand", "Nunito", "Segoe UI", system-ui, sans-serif;
  --body: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  --max: 1080px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--cream);
  color: var(--navy);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4 { font-family: var(--heading); font-weight: 700; margin: 0; line-height: 1.15; }
p { margin: 0; }
a { color: var(--blue-deep); text-decoration: none; }
a:hover { color: var(--coral); }
img { max-width: 100%; height: auto; display: block; }
button { font: inherit; }
.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap;
}
.skip-link {
  position: absolute; left: 16px; top: -48px; padding: 8px 14px;
  background: var(--navy); color: #fff; border-radius: 8px; z-index: 50;
}
.skip-link:focus { top: 12px; color: #fff; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* ---------- Header ---------- */
.site-header { padding: 8px 0; }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.logo { display: inline-flex; align-items: center; color: var(--navy); }
.logo:hover { color: var(--navy); }
.logo-image { width: 132px; height: 88px; object-fit: contain; }
.grad-text {
  background: var(--gradient);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
@media (max-width: 767px) { .logo-image { width: 96px; height: 64px; } }
.nav { display: flex; align-items: center; gap: 28px; }
.nav a { font-weight: 500; font-size: 15px; color: var(--navy); opacity: 0.75; padding: 6px 0; border-bottom: 2px solid transparent; }
.nav a:hover { opacity: 1; color: var(--navy); }
.nav a[aria-current="true"] { opacity: 1; font-weight: 700; }
.nav a[aria-current="true"] { border-image: var(--gradient) 1; border-bottom: 2px solid; }
.menu-btn {
  display: none; align-items: center; justify-content: center;
  width: 42px; height: 42px; border-radius: 10px; border: 1.5px solid var(--border-input);
  background: transparent; color: var(--navy); cursor: pointer;
}
.menu-btn svg { width: 22px; height: 22px; }
.menu-btn:focus-visible, .nav a:focus-visible, .logo:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; border-radius: 6px; }
.mobile-nav { display: none; }
.mobile-nav[data-open="true"] { display: block; }
.mobile-nav .wrap { display: grid; gap: 4px; padding-bottom: 12px; }
.mobile-nav a { display: block; padding: 12px 14px; border-radius: 10px; color: var(--navy); font-weight: 500; background: var(--white); border: 1px solid var(--border); }
.mobile-nav a[aria-current="true"] { font-weight: 700; color: var(--blue-deep); }
@media (max-width: 860px) {
  .nav { display: none; }
  .menu-btn { display: inline-flex; }
}

/* ---------- Breadcrumb + page head ---------- */
.crumbs { font-size: 13px; color: var(--faint); margin: 14px 0 22px; }
.crumbs a { color: inherit; }
.crumbs a:hover { color: var(--blue-deep); }
.crumbs span { margin: 0 6px; }
.page-head { margin-bottom: 26px; }
.page-head h1 { font-size: 34px; letter-spacing: -0.015em; }
.page-head p { margin-top: 8px; color: var(--muted); max-width: 60ch; font-size: 17px; }
@media (max-width: 560px) { .page-head h1 { font-size: 29px; } }

/* ---------- Calculator grid ---------- */
.calc-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 22px; align-items: start; }
@media (max-width: 760px) { .calc-grid { grid-template-columns: 1fr; } }

.card {
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow);
}
.panel { padding: 26px; }
@media (max-width: 480px) { .panel { padding: 20px; } }

.field { margin-bottom: 18px; }
.field:last-child { margin-bottom: 0; }
.field label, .field .label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 7px; color: var(--navy); }
.field .help { font-size: 12.5px; color: var(--faint); margin-top: 6px; line-height: 1.45; }
.field[hidden] { display: none; }
.fields-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 400px) { .fields-row { grid-template-columns: 1fr; } }

.control { position: relative; display: flex; align-items: center; }
.control input, .control select {
  width: 100%; font-family: var(--body); font-size: 16px; font-weight: 500; color: var(--navy);
  background: var(--cream); border: 1.5px solid var(--border-input); border-radius: var(--radius-sm);
  padding: 11px 13px; outline: none; transition: border-color 0.15s ease, background-color 0.15s ease, box-shadow 0.15s ease;
  appearance: none; -webkit-appearance: none; margin: 0;
}
.control input:focus, .control select:focus {
  border-color: var(--blue); background: var(--white); box-shadow: 0 0 0 3px rgba(47, 169, 232, 0.18);
}
.control input[aria-invalid="true"] { border-color: var(--coral); }
.control input::-webkit-outer-spin-button, .control input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.control input[type="number"] { -moz-appearance: textfield; }
.control .affix { position: absolute; font-size: 14px; font-weight: 500; color: var(--faint); pointer-events: none; }
.control .prefix { left: 13px; }
.control .suffix { right: 13px; }
.control.has-prefix input { padding-left: 28px; }
.control.has-suffix input { padding-right: 48px; }
.control.has-suffix.wide input { padding-right: 84px; }
.control select { padding-right: 38px; cursor: pointer; }
.control .chev { position: absolute; right: 13px; width: 14px; height: 14px; pointer-events: none; color: var(--faint); }

/* Toggle-button groups for either/or choices */
.toggle { display: flex; gap: 6px; background: var(--cream); border: 1.5px solid var(--border-input); border-radius: var(--radius-sm); padding: 4px; }
.toggle.stack { flex-direction: column; }
.toggle label { flex: 1; margin: 0; position: relative; }
.toggle input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.toggle span {
  display: flex; align-items: center; justify-content: center; text-align: center; min-height: 38px;
  padding: 6px 10px; border-radius: 7px; font-size: 14px; font-weight: 500; color: var(--muted);
  cursor: pointer; transition: background-color 0.15s ease, color 0.15s ease;
  border: 1.5px solid transparent;
}
.toggle input:checked + span { background: var(--white); color: var(--navy); font-weight: 600; border-color: var(--blue); box-shadow: 0 1px 2px rgba(18, 38, 58, 0.06); }
.toggle input:focus-visible + span { outline: 2px solid var(--blue); outline-offset: 2px; }
.toggle span:hover { color: var(--navy); }

.error { display: none; margin-top: 6px; font-size: 12.5px; color: var(--coral); font-weight: 500; }
.error[data-show="true"] { display: block; }

/* ---------- Result panel ---------- */
.result {
  background: var(--navy); color: #fff; border-radius: var(--radius); box-shadow: var(--shadow-dark);
  padding: 26px; position: sticky; top: 16px;
}
@media (max-width: 760px) { .result { position: static; } }
@media (max-width: 480px) { .result { padding: 20px; } }
.result-label { font-size: 12px; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: rgba(255, 255, 255, 0.62); }
.result-value {
  font-family: var(--heading); font-weight: 700; font-size: 44px; line-height: 1.1; margin-top: 8px;
  letter-spacing: -0.02em; word-break: break-word;
}
.result-value.grad-text { background: var(--gradient); -webkit-background-clip: text; background-clip: text; }
.result-value.is-negative { color: var(--coral); -webkit-text-fill-color: var(--coral); background: none; }
.result-value.is-text { font-size: 30px; }
.result-context { margin-top: 8px; font-size: 14px; color: rgba(255, 255, 255, 0.66); line-height: 1.45; }
.result-warning {
  display: none; margin-top: 14px; padding: 10px 12px; border-radius: 9px; font-size: 13.5px; line-height: 1.45;
  background: rgba(255, 122, 133, 0.14); border: 1px solid rgba(255, 122, 133, 0.4); color: #ffd3d7;
}
.result-warning[data-show="true"] { display: block; }
.breakdown { margin-top: 22px; border-top: 1px solid rgba(255, 255, 255, 0.12); }
.row { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; padding: 10px 0; border-bottom: 1px solid rgba(255, 255, 255, 0.08); font-size: 14.5px; }
.row:last-child { border-bottom: 0; }
.row .k { color: rgba(255, 255, 255, 0.82); }
.row .v { font-variant-numeric: tabular-nums; font-weight: 500; white-space: nowrap; text-align: right; }
.row .note { display: block; font-size: 12px; color: rgba(255, 255, 255, 0.5); margin-top: 2px; }
.row.is-muted .k, .row.is-muted .v { color: rgba(255, 255, 255, 0.62); font-weight: 400; }
.row.is-negative .v { color: var(--coral); }
.row.is-total { margin-top: 4px; padding-top: 14px; border-top: 1px solid rgba(255, 255, 255, 0.22); border-bottom: 0; }
.row.is-total .k, .row.is-total .v { color: var(--light-blue); font-weight: 700; font-size: 16px; }
.row.is-total .note { color: rgba(127, 212, 255, 0.7); }

/* Result number transition. Off when the reader asks for reduced motion. */
@media (prefers-reduced-motion: no-preference) {
  .result-value { transition: opacity 0.18s ease, transform 0.18s ease; }
  .result-value.is-updating { opacity: 0.55; transform: translateY(2px); }
}

/* ---------- Note box + related strip ---------- */
.note { padding: 22px 26px; margin-top: 22px; }
.note h2 { font-size: 18px; margin-bottom: 8px; }
.note p { color: var(--muted); font-size: 15px; max-width: 72ch; }
.note p + p { margin-top: 10px; }
.note .asof { margin-top: 12px; font-size: 13px; color: var(--faint); }
.related { margin-top: 26px; }
.related h2 { font-size: 15px; font-weight: 600; color: var(--faint); margin-bottom: 10px; font-family: var(--body); }
.pills { display: flex; flex-wrap: wrap; gap: 8px; }
.pill {
  display: inline-block; padding: 8px 15px; border-radius: 999px; font-size: 14px; font-weight: 500;
  color: var(--navy); background: var(--white); border: 1px solid var(--border-input);
  transition: border-color 0.15s ease, color 0.15s ease;
}
.pill:hover { border-color: var(--blue); color: var(--blue-deep); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 22px; border-radius: var(--radius-sm); font-weight: 600; font-size: 15px;
  border: 1.5px solid transparent; cursor: pointer; transition: transform 0.12s ease, box-shadow 0.15s ease, opacity 0.15s ease;
}
.btn-primary { background: var(--gradient); color: #fff; box-shadow: 0 6px 16px rgba(27, 127, 196, 0.28); }
.btn-primary:hover { color: #fff; box-shadow: 0 8px 20px rgba(27, 127, 196, 0.36); transform: translateY(-1px); }
.btn-secondary { background: transparent; color: var(--navy); border-color: var(--navy); }
.btn-secondary:hover { color: var(--navy); background: rgba(18, 38, 58, 0.05); }
.btn:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; }
@media (prefers-reduced-motion: reduce) { .btn, .btn:hover { transition: none; transform: none; } }

/* ---------- Homepage ---------- */
.hero { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 32px; align-items: center; padding: 28px 0 40px; }
.hero h1 { font-size: 46px; letter-spacing: -0.02em; max-width: 14ch; }
.hero p { margin-top: 16px; font-size: 18px; color: var(--muted); max-width: 48ch; }
.hero .actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.hero .mascot { justify-self: center; width: min(100%, 380px); }
@media (max-width: 760px) {
  .hero { grid-template-columns: 1fr; padding-top: 8px; }
  .hero h1 { font-size: 36px; }
  .hero .mascot { order: -1; width: min(70%, 260px); }
}
.section { margin: 28px 0 40px; }
.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; margin-bottom: 14px; }
.section-head h2 { font-size: 24px; }
.section-head a { font-size: 14px; font-weight: 500; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
@media (max-width: 860px) { .cards { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .cards { grid-template-columns: 1fr; } }
.calc-card { display: block; padding: 18px 20px; color: var(--navy); transition: border-color 0.15s ease, transform 0.12s ease; }
.calc-card:hover { color: var(--navy); border-color: var(--blue); transform: translateY(-1px); }
.calc-card h3 { font-size: 17px; margin-bottom: 6px; }
.calc-card p { font-size: 14px; color: var(--muted); line-height: 1.45; }
@media (prefers-reduced-motion: reduce) { .calc-card, .calc-card:hover { transition: none; transform: none; } }

/* ---------- 404 ---------- */
.empty { text-align: center; padding: 30px 0 50px; }
.empty .mascot { width: min(60%, 300px); margin: 0 auto 22px; }
.empty h1 { font-size: 36px; }
.empty p { margin: 12px auto 22px; color: var(--muted); max-width: 46ch; }

/* ---------- Footer ---------- */
.site-footer { margin-top: 56px; padding: 26px 0 40px; border-top: 1px solid var(--border); font-size: 13.5px; color: var(--faint); }
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px 24px; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 16px; }
.site-footer a { color: var(--faint); }
.site-footer a:hover { color: var(--blue-deep); }