/* ===================================================================
   Site framework: shared across every page.
   Brand: FiscalBytes.
   =================================================================== */

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body, h1, h2, h3, h4, p, figure, blockquote, dl, dd, ul, ol { margin: 0; }
ul, ol { padding: 0; }
img, picture, svg { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; }
a { color: inherit; }
table { border-collapse: collapse; width: 100%; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* ---------- Tokens ---------- */
:root {
  /* Cool "ledger" palette: forest green + navy, crisp neutrals. Distinct from the blue dashboard feel of the decommission plan's embed, and deliberately not paired with warm tan/brown (reads as camo/khaki). */
  --ink: #1c2126;
  --ink-soft: #5a6470;
  --paper: #f7f9f8;
  --paper-dim: #eef2f1;
  --card: #ffffff;
  --line: #dde4e2;
  --line-soft: #e8edec;

  --forest: #1f5d4a;
  --forest-dark: #163f33;
  --forest-light: #2f7a63;
  --navy: #1e3a5f;
  --navy-dark: #16294a;
  --navy-light: #3a5a86;
  --gold: #c99a3e;

  --danger: #b3402f;
  --warning: #b1822c;
  --success: #2f7a4f;

  --font-display: 'Fraunces', Georgia, 'Times New Roman', serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 1px 2px rgba(28, 35, 31, 0.06), 0 8px 24px -14px rgba(28, 35, 31, 0.28);
  --shadow-lg: 0 24px 60px -24px rgba(28, 35, 31, 0.4);
  --container: 1120px;
}

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.2;
  color: var(--ink);
}

/* ---------- Skip link ---------- */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--forest);
  color: #fff;
  padding: 0.75rem 1.25rem;
  border-radius: 0 0 var(--radius-sm) 0;
  z-index: 100;
}
.skip-link:focus { left: 0; }

/* ---------- Visually hidden (screen-reader-only) text ---------- */
.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;
}

/* ---------- Status banner ---------- */
.site-banner {
  background: var(--forest-dark);
  color: #eef2f1;
  text-align: center;
  font-size: 0.85rem;
  padding: 0.6rem 1rem;
}

/* ---------- Site ticker (global, links across the site) ---------- */
.site-ticker {
  background: var(--navy-dark);
  overflow: hidden;
  white-space: nowrap;
  border-bottom: 1px solid var(--line);
}
.site-ticker-track {
  display: inline-block;
  padding: 0.5rem 0;
  animation: siteTicker 90s linear infinite;
}
.site-ticker-item {
  display: inline-block;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: #dde4ea;
  padding: 0 1.75rem;
}
.site-ticker-item a {
  color: #fff;
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.35);
}
.site-ticker-item a:hover { border-bottom-color: #fff; }
@keyframes siteTicker {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce) {
  .site-ticker-track { animation: none; }
}

/* ---------- Header / nav ---------- */
.site-header {
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 50;
}

.nav {
  max-width: var(--container);
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--ink);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 8px;
  background: var(--forest);
  color: #fff;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 2.25rem;
  height: 2.25rem;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
}
.nav-menu a {
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--ink-soft);
  padding: 0.25rem 0;
  border-bottom: 2px solid transparent;
}
.nav-menu a:hover,
.nav-menu a.is-current {
  color: var(--forest-dark);
  border-bottom-color: var(--navy);
}
.nav-cta {
  background: var(--forest);
  color: #fff !important;
  padding: 0.5rem 1rem !important;
  border-radius: 999px;
  border-bottom: none !important;
}
.nav-cta:hover { background: var(--forest-dark); color: #fff !important; }

@media (max-width: 760px) {
  .nav-toggle { display: flex; }
  .nav-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    padding: 0.5rem 1.5rem 1rem;
    display: none;
  }
  .nav-menu.is-open { display: flex; }
  .nav-menu li { width: 100%; }
  .nav-menu a { display: block; padding: 0.6rem 0; width: 100%; }
  .nav-cta { margin-top: 0.5rem; display: inline-block; }
}

/* ---------- Sections / layout ---------- */
.section { padding: 3.5rem 1.5rem; }
.section-tint { background: var(--paper-dim); }
.section-inner { max-width: var(--container); margin: 0 auto; }

.kicker {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--navy-dark);
  margin-bottom: 0.75rem;
}
.section-title {
  font-size: clamp(2rem, 4vw, 2.75rem);
  margin-bottom: 1rem;
}
.section-intro {
  font-size: 1.15rem;
  color: var(--ink-soft);
  max-width: 60ch;
}

.link-arrow {
  display: inline-block;
  margin-top: 1.75rem;
  color: var(--forest-dark);
  font-weight: 600;
  text-decoration: none;
}
.link-arrow:hover { text-decoration: underline; }

/* ---------- Long-form article typography ---------- */
.article-prose { max-width: 68ch; }
.article-prose h2 {
  font-size: 1.5rem;
  margin-top: 2.25rem;
  margin-bottom: 0.85rem;
}
.article-prose p { margin-bottom: 1.1rem; color: var(--ink); }
.article-prose em { color: var(--navy-dark); font-style: italic; }
.article-prose ul { margin: 0 0 1.1rem 1.4rem; }
.article-prose li { margin-bottom: 0.4rem; }

.privacy-note {
  background: var(--paper-dim);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 1rem 1.25rem;
  font-size: 0.9rem;
  color: var(--ink-soft);
  margin-top: 1.5rem;
}

/* A flagged aside, e.g. explaining a deliberately unrealistic scenario */
.callout {
  background: var(--paper-dim);
  border: 1px solid var(--line);
  border-left: 4px solid var(--warning);
  border-radius: var(--radius-sm);
  padding: 1rem 1.25rem;
  font-size: 0.9rem;
  color: var(--ink-soft);
  margin-bottom: 1.5rem;
}
.callout strong { color: var(--ink); }

/* Small inline flag for a deliberately unrealistic row/card (e.g. a fictional loan term) */
.term-flag {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.1rem 0.5rem;
  border-radius: 999px;
  background: rgba(177, 130, 44, 0.15);
  color: var(--warning);
  vertical-align: middle;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--forest); color: #fff; box-shadow: var(--shadow); }
.btn-primary:hover { background: var(--forest-dark); }
.btn-secondary { background: transparent; color: var(--forest-dark); border-color: var(--line); }
.btn-secondary:hover { border-color: var(--forest); background: var(--paper-dim); }
.btn-block { width: 100%; }

/* ---------- Cards / grids (landing page + tool listings) ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  margin-top: 2.5rem;
}
.tool-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.75rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--ink);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.tool-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.tool-card .tool-icon {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 10px;
  background: var(--paper-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
}
.tool-card h3 { font-size: 1.2rem; }
.tool-card p { color: var(--ink-soft); font-size: 0.95rem; }
.tool-card .tool-cta {
  margin-top: auto;
  font-weight: 600;
  color: var(--forest-dark);
  font-size: 0.9rem;
}
.tool-badge {
  display: inline-block;
  align-self: flex-start;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  background: var(--gold);
  color: var(--navy-dark);
}
.tool-badge.is-planned { background: var(--line-soft); color: var(--ink-soft); }

/* ---------- Hero (landing page) ---------- */
.hero {
  padding: 4.5rem 1.5rem 3rem;
}
.hero-grid {
  max-width: 1120px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 2.5rem;
  align-items: center;
}
.hero-inner { text-align: left; }
.hero h1 { font-size: clamp(2.2rem, 4.4vw, 3.2rem); margin-bottom: 1.25rem; }
.hero p { font-size: 1.15rem; color: var(--ink-soft); max-width: 52ch; margin: 0; }
.hero-actions { display: flex; gap: 1rem; justify-content: flex-start; margin-top: 2rem; flex-wrap: wrap; }

.hero-graphic {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 1.5rem 1.5rem 1.1rem;
}
.hero-graphic svg { width: 100%; height: auto; display: block; }
.hero-graphic-caption {
  margin-top: 0.6rem;
  font-size: 0.78rem;
  font-style: italic;
  color: var(--ink-soft);
  text-align: center;
}

@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; text-align: center; }
  .hero-inner { text-align: center; }
  .hero p { margin: 0 auto; }
  .hero-actions { justify-content: center; }
  .hero-graphic { order: -1; max-width: 420px; margin: 0 auto; }
}

/* ---------- Forms: shared by every calculator/tool ---------- */
.input-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.75rem;
  margin-bottom: 1.5rem;
}
.input-card h2 {
  font-size: 1.15rem;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.input-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
}
.input-group { display: flex; flex-direction: column; }
.input-group label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-soft);
  margin-bottom: 0.4rem;
}
.input-wrapper {
  display: flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--paper);
  overflow: hidden;
}
.input-wrapper:focus-within { border-color: var(--forest); box-shadow: 0 0 0 3px rgba(31, 93, 74, 0.12); }
.input-wrapper input, .input-wrapper select {
  flex: 1;
  border: 0;
  background: transparent;
  padding: 0.65rem 0.85rem;
  font-size: 1rem;
  min-width: 0;
}
.input-wrapper input:focus, .input-wrapper select:focus { outline: none; }
.input-prefix, .input-suffix {
  padding: 0 0.85rem;
  color: var(--ink-soft);
  font-weight: 600;
}
.hint { font-size: 0.78rem; color: var(--ink-soft); margin-top: 0.4rem; }
.error-msg { display: none; font-size: 0.78rem; color: var(--danger); margin-top: 0.4rem; }
.input-group.has-error .input-wrapper { border-color: var(--danger); }
.input-group.has-error .error-msg { display: block; }
.input-group.has-error .hint { display: none; }

/* ---------- Results ---------- */
.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}
.summary-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-left: 4px solid var(--forest);
  border-radius: var(--radius-sm);
  padding: 1.25rem;
  box-shadow: var(--shadow);
}
.summary-card .label { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--ink-soft); }
.summary-card .value { font-family: var(--font-display); font-size: 1.6rem; font-weight: 600; margin: 0.3rem 0; }
.summary-card .sub { font-size: 0.82rem; color: var(--ink-soft); }
.summary-card.navy { border-left-color: var(--navy); }
.summary-card.gold { border-left-color: var(--gold); }
.summary-card.success .value { color: var(--success); }
.summary-card.warning .value { color: var(--warning); }

.table-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}
.table-card h2 { font-size: 1.1rem; margin-bottom: 1rem; }
.table-wrapper { overflow-x: auto; }
table { font-size: 0.88rem; }
th, td { text-align: right; padding: 0.55rem 0.75rem; border-bottom: 1px solid var(--line-soft); white-space: nowrap; }
th:first-child, td:first-child { text-align: left; }
thead th { color: var(--ink-soft); font-weight: 600; text-transform: uppercase; font-size: 0.72rem; letter-spacing: 0.04em; }
td.positive { color: var(--success); }

.methodology {
  background: var(--paper-dim);
  border-radius: var(--radius-sm);
  padding: 1.5rem;
  font-size: 0.9rem;
  color: var(--ink-soft);
}
.methodology h3 { font-size: 1rem; margin-bottom: 0.75rem; color: var(--ink); }
.methodology ul { margin-left: 1.3rem; }
.methodology li { margin-bottom: 0.5rem; }

/* Collapsible amortization schedule, via native <details> */
.amort-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
  overflow: hidden;
}
.amort-card.is-fictional { border-color: rgba(177, 130, 44, 0.4); }
.amort-card summary {
  cursor: pointer;
  list-style: none;
  padding: 1rem 1.25rem;
  background: var(--paper-dim);
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.amort-card summary::-webkit-details-marker { display: none; }
.amort-card summary::after { content: '▼'; font-size: 0.75rem; color: var(--ink-soft); transition: transform 0.15s ease; }
.amort-card[open] summary::after { transform: rotate(180deg); }
.amort-card .amort-body { padding: 1rem 1.25rem; }

/* ---------- Utilities ---------- */
.is-hidden { display: none; }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 2rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: var(--container);
  margin: 0 auto;
  font-size: 0.85rem;
  color: var(--ink-soft);
  flex-wrap: wrap;
}
.back-to-top { color: var(--forest-dark); text-decoration: none; font-weight: 600; }
.back-to-top:hover { text-decoration: underline; }
.footer-disclosure { display: inline-block; margin-top: 0.5rem; opacity: 0.75; font-size: 0.8rem; }
.footer-disclosure a { color: inherit; text-decoration: underline; }
.footer-brand-link { display: block; text-align: center; margin-top: 0.25rem; }