/* =============================================================
   1. Tokens
   ============================================================= */
:root {
  /* neutrals */
  --bg: #f4f5f0;
  --surface: #ffffff;
  --surface-2: #eceee7;
  --ink: #14181a;
  --ink-soft: #4d5650;
  --ink-faint: #838d84;
  --line: #dadfd5;

  /* brand accent */
  --accent: #0e6e56;
  --accent-ink: #0a4f3e;
  --accent-soft: #dfeee8;

  /* scenario colors — used consistently everywhere the two products are compared */
  --fija: #0e6e56;
  --fija-soft: #dfeee8;
  --variable: #b9711a;
  --variable-soft: #f4e6d2;

  --ok: #1c7a4a;
  --warn: #b3401e;

  --radius: 10px;
  --radius-sm: 6px;
  --shadow-card: 0 1px 2px rgba(20, 24, 26, 0.05), 0 6px 20px rgba(20, 24, 26, 0.06);

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  --sans: "Manrope", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #12151a;
    --surface: #191d22;
    --surface-2: #20252b;
    --ink: #e9ece7;
    --ink-soft: #a7b0a8;
    --ink-faint: #737d75;
    --line: #2a3129;

    --accent: #37b892;
    --accent-ink: #7fddbf;
    --accent-soft: #17342b;

    --fija: #37b892;
    --fija-soft: #17342b;
    --variable: #e3a046;
    --variable-soft: #382a14;

    --ok: #4fce8f;
    --warn: #ea7b52;

    --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.35);
  }
}
:root[data-theme="dark"] {
  --bg: #12151a;
  --surface: #191d22;
  --surface-2: #20252b;
  --ink: #e9ece7;
  --ink-soft: #a7b0a8;
  --ink-faint: #737d75;
  --line: #2a3129;

  --accent: #37b892;
  --accent-ink: #7fddbf;
  --accent-soft: #17342b;

  --fija: #37b892;
  --fija-soft: #17342b;
  --variable: #e3a046;
  --variable-soft: #382a14;

  --ok: #4fce8f;
  --warn: #ea7b52;

  --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.35);
}

/* =============================================================
   2. Reset & base
   ============================================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; }
html { -webkit-text-size-adjust: 100%; tab-size: 2; scroll-behavior: smooth; overflow-x: clip; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
  overscroll-behavior-y: none;
}
img, svg, video { display: block; max-width: 100%; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
a { color: var(--accent-ink); text-decoration: none; }
a:hover { text-decoration: underline; }
p { text-wrap: pretty; }
h1, h2, h3, h4 { text-wrap: balance; line-height: 1.1; letter-spacing: -0.01em; }
::selection { background: var(--accent-soft); color: var(--ink); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
input, select { font: inherit; color: inherit; }
table { border-collapse: collapse; width: 100%; }
.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }

/* =============================================================
   3. Utilities
   ============================================================= */
.skip-link {
  position: fixed; top: -100px; left: 1rem;
  padding: .6rem 1rem; background: var(--ink); color: var(--bg);
  z-index: 9999; border-radius: 8px; font-weight: 600;
}
.skip-link:focus { top: 1rem; }
.container { max-width: 920px; margin-inline: auto; padding-inline: 1.25rem; }
.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* =============================================================
   4. Typography
   ============================================================= */
h1 { font-size: clamp(1.9rem, 4.4vw, 2.7rem); font-weight: 800; }
h2 { font-size: clamp(1.35rem, 2.6vw, 1.7rem); font-weight: 800; }
h3 { font-size: 1.05rem; font-weight: 700; }
.lede { color: var(--ink-soft); font-size: 1.05rem; max-width: 62ch; }

/* =============================================================
   5. Components
   ============================================================= */
.badge {
  display: inline-flex; align-items: center; gap: .4rem;
  font-family: var(--mono); font-size: .72rem; text-transform: uppercase;
  letter-spacing: .06em; padding: .3rem .6rem; border-radius: 999px;
  background: var(--accent-soft); color: var(--accent-ink);
}

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  padding: .85rem 1.3rem; border-radius: var(--radius-sm); font-weight: 700;
  font-size: .98rem; transition: transform .18s var(--ease-out), background .18s var(--ease-out);
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-ink); text-decoration: none; }
.btn-secondary { background: var(--surface-2); color: var(--ink); border: 1px solid var(--line); }
.btn-secondary:hover { background: var(--surface); text-decoration: none; }
.btn:active { transform: scale(.98); }
.btn[disabled] { opacity: .5; cursor: not-allowed; }

.field {
  display: flex; flex-direction: column; gap: .35rem;
}
.field label {
  font-size: .82rem; font-weight: 700; color: var(--ink-soft);
}
.field .hint { font-size: .74rem; color: var(--ink-faint); }
.field input {
  background: var(--surface); border: 1.5px solid var(--line); border-radius: var(--radius-sm);
  padding: .65rem .8rem; font-family: var(--mono); font-size: 1rem; color: var(--ink);
  transition: border-color .18s var(--ease-out);
}
.field input:focus { border-color: var(--accent); }
.field .suffix-wrap { position: relative; }
.field .suffix-wrap input { padding-right: 2.6rem; width: 100%; }
.field .suffix {
  position: absolute; right: .8rem; top: 50%; transform: translateY(-50%);
  color: var(--ink-faint); font-size: .85rem; font-family: var(--mono); pointer-events: none;
}

/* =============================================================
   6. Sections
   ============================================================= */
header.site {
  display: flex; align-items: center; justify-content: space-between;
  padding-block: 1.1rem; border-bottom: 1px solid var(--line);
}
.logo { display: flex; align-items: center; gap: .55rem; font-weight: 800; font-size: 1.05rem; }
.logo .mark {
  width: 1.7rem; height: 1.7rem; border-radius: 6px; background: var(--accent);
  color: #fff; display: grid; place-items: center; font-family: var(--mono); font-weight: 700; font-size: .9rem;
}

.hero { padding-block: 2.2rem 1.4rem; }
.hero-eyebrow {
  font-family: var(--mono); font-size: .74rem; letter-spacing: .07em; text-transform: uppercase;
  color: var(--accent-ink); margin-bottom: .6rem;
}

/* --- the tool card --- */
.tool-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow-card); padding: 1.4rem;
}
.tool-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem;
}
.tool-grid .field.span-2 { grid-column: 1 / -1; }

.euribor-note {
  grid-column: 1 / -1;
  display: flex; align-items: baseline; gap: .5rem; flex-wrap: wrap;
  font-size: .78rem; color: var(--ink-faint); margin-top: -.3rem;
}
.euribor-note b { color: var(--ink-soft); font-family: var(--mono); }

.tool-actions { display: flex; gap: .7rem; margin-top: 1.2rem; flex-wrap: wrap; }

/* results */
.results { margin-top: 1.6rem; display: none; }
.results[data-visible="1"] { display: block; }

.compare-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.scenario-card {
  border: 1.5px solid var(--line); border-radius: var(--radius); padding: 1.1rem;
  position: relative; overflow: hidden;
}
.scenario-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px;
}
.scenario-card.fija::before { background: var(--fija); }
.scenario-card.variable::before { background: var(--variable); }
.scenario-name {
  display: inline-flex; align-items: center; gap: .4rem; font-family: var(--mono);
  font-size: .74rem; text-transform: uppercase; letter-spacing: .05em; margin-bottom: .6rem;
}
.scenario-card.fija .scenario-name { color: var(--fija); }
.scenario-card.variable .scenario-name { color: var(--variable); }
.scenario-name .dot { width: .5rem; height: .5rem; border-radius: 50%; background: currentColor; }
.scenario-payment { font-family: var(--mono); font-weight: 700; font-size: 1.7rem; line-height: 1; }
.scenario-payment small { font-size: .9rem; font-weight: 500; color: var(--ink-faint); }
.scenario-meta { margin-top: .8rem; display: grid; gap: .35rem; font-size: .86rem; color: var(--ink-soft); }
.scenario-meta span.v { color: var(--ink); font-family: var(--mono); font-weight: 600; }

.diff-line {
  margin-top: 1rem; padding: .85rem 1rem; border-radius: var(--radius-sm);
  background: var(--surface-2); font-size: .92rem; display: flex; gap: .5rem; align-items: baseline; flex-wrap: wrap;
}
.diff-line b { font-family: var(--mono); }

/* chart */
.chart-block { margin-top: 1.6rem; }
.chart-head { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; margin-bottom: .7rem; }
.chart-legend { display: flex; gap: 1rem; font-size: .8rem; color: var(--ink-soft); }
.chart-legend span { display: inline-flex; align-items: center; gap: .35rem; }
.chart-legend .sw { width: .8rem; height: .5rem; border-radius: 2px; }
.chart-toggle { display: flex; gap: .4rem; }
.chart-toggle button {
  padding: .35rem .75rem; border-radius: 999px; font-size: .78rem; font-weight: 700;
  border: 1px solid var(--line); color: var(--ink-soft);
}
.chart-toggle button[aria-pressed="true"] { background: var(--ink); color: var(--bg); border-color: var(--ink); }
canvas#chart { width: 100%; height: 220px; display: block; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm); }

/* amortization table */
.amort-block { margin-top: 1.6rem; }
.amort-head { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; margin-bottom: .7rem; }
.amort-view-toggle { display: flex; gap: .4rem; }
.amort-view-toggle button {
  padding: .35rem .75rem; border-radius: 999px; font-size: .78rem; font-weight: 700;
  border: 1px solid var(--line); color: var(--ink-soft);
}
.amort-view-toggle button[aria-pressed="true"] { background: var(--ink); color: var(--bg); border-color: var(--ink); }

.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius-sm); }
table.amort { font-size: .86rem; }
table.amort th, table.amort td { padding: .55rem .7rem; text-align: right; border-bottom: 1px solid var(--line); white-space: nowrap; }
table.amort th:first-child, table.amort td:first-child { text-align: left; }
table.amort thead th { background: var(--surface-2); font-size: .72rem; text-transform: uppercase; letter-spacing: .04em; color: var(--ink-soft); }
table.amort td { font-family: var(--mono); }
table.amort tbody tr:last-child td { border-bottom: 0; }

.load-more-row { text-align: center; padding: .8rem; }

.result-actions { display: flex; gap: .7rem; margin-top: 1rem; flex-wrap: wrap; }

.privacy-badge {
  display: flex; align-items: center; gap: .6rem; margin-top: 1rem;
  font-size: .84rem; color: var(--ink-soft);
}
.privacy-badge svg { flex: none; color: var(--accent); }
.limits-note { font-size: .78rem; color: var(--ink-faint); margin-top: .35rem; }

/* ad slots */
.ad-slot {
  margin-block: 1.6rem; min-height: 90px; border: 1px dashed var(--line); border-radius: var(--radius-sm);
  display: grid; place-items: center; font-family: var(--mono); font-size: .72rem;
  letter-spacing: .06em; text-transform: uppercase; color: var(--ink-faint);
}

/* how it works */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.1rem; margin-top: 1rem; }
.step { display: flex; flex-direction: column; gap: .5rem; }
.step .num {
  width: 2rem; height: 2rem; border-radius: 50%; background: var(--accent-soft); color: var(--accent-ink);
  display: grid; place-items: center; font-family: var(--mono); font-weight: 700; font-size: .9rem;
}
.step p { color: var(--ink-soft); font-size: .92rem; }

/* seo copy */
.seo-copy { margin-top: 1.6rem; display: grid; gap: .9rem; color: var(--ink-soft); }
.seo-copy h2 { color: var(--ink); margin-top: .4rem; }

/* faq */
.faq-list { margin-top: 1rem; display: grid; gap: .6rem; }
.faq-item { border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--surface); }
.faq-item summary {
  cursor: pointer; padding: .9rem 1.05rem; font-weight: 700; font-size: .96rem;
  list-style: none; display: flex; justify-content: space-between; gap: 1rem; align-items: center;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-family: var(--mono); color: var(--ink-faint); font-size: 1.1rem; }
.faq-item[open] summary::after { content: "\2212"; }
.faq-item p { padding: 0 1.05rem 1rem; color: var(--ink-soft); font-size: .92rem; }

footer.site {
  margin-top: 2.4rem; padding-block: 1.6rem 2.4rem; border-top: 1px solid var(--line);
  display: flex; flex-wrap: wrap; gap: .5rem 1.2rem; align-items: center; justify-content: space-between;
  font-size: .82rem; color: var(--ink-faint);
}
footer.site nav { display: flex; gap: 1.1rem; flex-wrap: wrap; }

/* =============================================================
   7. Effects
   ============================================================= */
[data-reveal] { opacity: 0; transform: translateY(14px); transition: opacity .5s var(--ease-out), transform .5s var(--ease-out); }
[data-reveal].is-revealed { opacity: 1; transform: none; }

.copied-flash { color: var(--ok); font-weight: 700; }

/* =============================================================
   8. Responsive
   ============================================================= */
@media (max-width: 719px) {
  .tool-grid { grid-template-columns: 1fr; }
  .compare-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
}
@media (min-width: 960px) {
  .container { padding-inline: 1.5rem; }
}

/* =============================================================
   9. Reduced motion — only intrusive effects
   ============================================================= */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

/* =============================================================
   10. Print
   ============================================================= */
@media print {
  header.site, .ad-slot, .steps, .seo-copy, .faq-list, footer.site,
  .tool-actions, .chart-block, .result-actions, .amort-view-toggle,
  .privacy-badge, .limits-note, .hero-eyebrow { display: none !important; }
  body { background: #fff; color: #000; }
  .tool-card { border: none; box-shadow: none; padding: 0; }
  table.amort { font-size: 11px; }
  .load-more-row { display: none; }
}