/* dufinance.xyz — debt snowball calculator
   Identity: tomato red + warm cream + walnut brown + butter yellow
   Typography: bold condensed display sans for headlines, clean sans for body
   Layout: workbook / numbered-method-card with checklist accents */

:root {
  --tomato: #d84315;
  --tomato-dark: #a82e0a;
  --tomato-soft: #f4d4c5;
  --cream: #fdf6e3;
  --cream-deep: #f5ead0;
  --walnut: #3e2723;
  --walnut-soft: #6b4f48;
  --butter: #fcc419;
  --butter-deep: #d49500;
  --line: #d9c8a3;
  --text: #2a1f1c;
  --grey: #7a6b66;
  --check: #2d6a4f;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--cream);
  background-image:
    repeating-linear-gradient(0deg, transparent 0, transparent 31px, rgba(62, 39, 35, 0.04) 31px, rgba(62, 39, 35, 0.04) 32px);
}

.display {
  font-family: "Bebas Neue", "Oswald", "Impact", "Helvetica Neue Condensed Bold", "Arial Narrow", sans-serif;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.4rem;
}

/* ---------- header ---------- */
.site-header {
  background: var(--cream);
  border-bottom: 4px solid var(--walnut);
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.4rem;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: .8rem;
  text-decoration: none;
  color: var(--walnut);
}

.brand-mark {
  width: 48px;
  height: 48px;
  display: inline-grid;
  place-items: center;
  background: var(--cream-deep);
  border: 2px solid var(--walnut);
  border-radius: 6px;
  position: relative;
}

.brand-mark .ball {
  position: relative;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 2px solid var(--walnut);
  background: var(--cream);
}

.brand-mark .ball::before {
  content: '';
  position: absolute;
  inset: 4px;
  border-radius: 50%;
  border: 2px solid var(--tomato);
}

.brand-mark .ball::after {
  content: '';
  position: absolute;
  top: 11px; left: 11px;
  width: 8px; height: 8px;
  background: var(--butter);
  border-radius: 50%;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.brand-name {
  font-family: "Bebas Neue", "Oswald", "Impact", sans-serif;
  font-weight: 700;
  font-size: 1.65rem;
  letter-spacing: 1px;
  color: var(--walnut);
  text-transform: uppercase;
}

.brand-tagline {
  font-size: .72rem;
  color: var(--tomato-dark);
  margin-top: 4px;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  font-weight: 600;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.3rem;
  align-items: center;
}

.nav a {
  text-decoration: none;
  color: var(--walnut);
  font-size: .85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .8px;
  transition: color .15s ease;
  border-bottom: 2px solid transparent;
  padding-bottom: 2px;
}

.nav a:hover { color: var(--tomato); border-bottom-color: var(--tomato); }

.nav-toggle { display: none; }

@media (max-width: 920px) {
  .nav { display: none; }
  .nav.open {
    display: flex;
    position: absolute;
    top: 80px; left: 0; right: 0;
    background: var(--cream);
    border-bottom: 4px solid var(--walnut);
    flex-direction: column;
    padding: 1rem 1.4rem;
    gap: .8rem;
  }
  .nav-toggle {
    display: flex; flex-direction: column; gap: 4px;
    background: var(--butter); border: 2px solid var(--walnut);
    border-radius: 4px;
    padding: 8px 10px; cursor: pointer;
  }
  .nav-toggle span { display: block; width: 22px; height: 3px; background: var(--walnut); }
}

/* ---------- hero ---------- */
.hero {
  background: var(--cream-deep);
  padding: 3.5rem 0 3rem;
  border-bottom: 4px solid var(--walnut);
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 8px;
  background: repeating-linear-gradient(45deg, var(--tomato) 0 12px, var(--butter) 12px 24px);
}

.hero-inner { text-align: center; }

.eyebrow {
  display: inline-block;
  font-size: .8rem;
  font-weight: 700;
  color: var(--cream);
  background: var(--tomato);
  padding: .4rem 1rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 1.2rem;
  border: 2px solid var(--walnut);
  box-shadow: 3px 3px 0 var(--walnut);
}

.hero h1 {
  font-family: "Bebas Neue", "Oswald", "Impact", sans-serif;
  font-weight: 700;
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  line-height: 1;
  margin: 0 0 1rem;
  color: var(--walnut);
  letter-spacing: 1px;
  text-transform: uppercase;
}

.hero .lead {
  max-width: 720px;
  margin: 0 auto;
  font-size: 1.05rem;
  color: var(--walnut-soft);
}

/* ---------- main content ---------- */
main { padding: 2.6rem 0 4rem; }

.content > section { margin-bottom: 2.4rem; }

h2 {
  font-family: "Bebas Neue", "Oswald", "Impact", sans-serif;
  font-weight: 700;
  font-size: 1.85rem;
  color: var(--walnut);
  margin: 0 0 1rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  border-bottom: 3px solid var(--tomato);
  padding-bottom: .35rem;
  display: flex;
  align-items: center;
  gap: .8rem;
}

h2::before {
  content: '';
  display: inline-block;
  width: 24px; height: 24px;
  background: var(--butter);
  border: 2px solid var(--walnut);
  flex-shrink: 0;
}

h3 {
  font-family: "Bebas Neue", "Oswald", "Impact", sans-serif;
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--tomato-dark);
  margin: 1.5rem 0 .5rem;
  letter-spacing: .8px;
  text-transform: uppercase;
}

p { margin: 0 0 1rem; }

a { color: var(--tomato); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 2px; font-weight: 600; }
a:hover { color: var(--tomato-dark); }

ul, ol { padding-left: 1.4rem; margin: 0 0 1rem; }
li { margin-bottom: .4rem; }

.checklist { list-style: none; padding-left: 0; }
.checklist li {
  position: relative;
  padding-left: 2rem;
  margin-bottom: .7rem;
}
.checklist li::before {
  content: '';
  position: absolute;
  left: 0; top: .25rem;
  width: 18px; height: 18px;
  background: var(--cream);
  border: 2px solid var(--walnut);
  border-radius: 3px;
}
.checklist li::after {
  content: '\2713';
  position: absolute;
  left: 3px; top: -.05rem;
  color: var(--check);
  font-weight: 900;
  font-size: 1.1rem;
}

/* ---------- calculator ---------- */
.tool-card {
  background: var(--cream);
  border: 3px solid var(--walnut);
  border-radius: 8px;
  padding: 2rem 2.2rem;
  margin: 2rem 0;
  box-shadow: 6px 6px 0 var(--walnut);
}

.tool-card h2 {
  border-bottom: 3px solid var(--tomato);
  margin-bottom: .3rem;
}

.tool-subtitle {
  color: var(--grey);
  margin-bottom: 1.6rem;
  font-size: .95rem;
}

.method-tabs {
  display: flex;
  gap: 0;
  margin-bottom: 1.4rem;
  border: 2px solid var(--walnut);
  border-radius: 4px;
  overflow: hidden;
}

.method-tab {
  flex: 1;
  padding: .75rem 1rem;
  font-family: "Bebas Neue", "Oswald", "Impact", sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--walnut);
  background: var(--cream);
  border: none;
  cursor: pointer;
  border-right: 2px solid var(--walnut);
}
.method-tab:last-child { border-right: 0; }
.method-tab.active { background: var(--tomato); color: var(--cream); }

.debt-row {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr auto;
  gap: .6rem;
  margin-bottom: .6rem;
  align-items: end;
}

.debt-row input {
  padding: .55rem .7rem;
  font-family: inherit;
  font-size: 1rem;
  color: var(--text);
  background: var(--cream);
  border: 2px solid var(--line);
  border-radius: 4px;
  outline: none;
}

.debt-row input:focus {
  border-color: var(--tomato);
  background: #fff;
}

.debt-row .row-label {
  font-size: .72rem;
  font-weight: 700;
  color: var(--walnut);
  text-transform: uppercase;
  letter-spacing: .5px;
  margin-bottom: 3px;
  display: block;
}

.btn-remove {
  padding: .55rem .8rem;
  background: var(--cream);
  border: 2px solid var(--walnut);
  border-radius: 4px;
  font-weight: 700;
  cursor: pointer;
  color: var(--walnut);
  font-family: inherit;
}

.btn-remove:hover { background: var(--tomato-soft); }

@media (max-width: 700px) {
  .debt-row { grid-template-columns: 1fr 1fr; }
  .debt-row > div:nth-child(1) { grid-column: 1 / -1; }
}

.extra-row {
  display: flex;
  gap: 1rem;
  margin-top: 1.2rem;
  padding-top: 1.2rem;
  border-top: 2px dashed var(--line);
  align-items: end;
  flex-wrap: wrap;
}
.extra-row label { flex: 1; min-width: 240px; }
.extra-row input {
  width: 100%;
  padding: .55rem .7rem;
  font-family: inherit;
  font-size: 1rem;
  color: var(--text);
  background: var(--cream);
  border: 2px solid var(--line);
  border-radius: 4px;
  outline: none;
  margin-top: .25rem;
}
.extra-row input:focus { border-color: var(--tomato); background: #fff; }
.extra-row .row-label {
  font-size: .72rem;
  font-weight: 700;
  color: var(--walnut);
  text-transform: uppercase;
  letter-spacing: .5px;
}

.btn {
  display: inline-block;
  padding: .85rem 2rem;
  font-family: "Bebas Neue", "Oswald", "Impact", sans-serif;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--cream);
  background: var(--tomato);
  border: 2px solid var(--walnut);
  border-radius: 4px;
  cursor: pointer;
  text-decoration: none;
  transition: transform .05s ease, background .15s ease;
  box-shadow: 3px 3px 0 var(--walnut);
}

.btn:hover { background: var(--tomato-dark); }
.btn:active { transform: translate(2px, 2px); box-shadow: 1px 1px 0 var(--walnut); }

.btn-add {
  display: inline-block;
  padding: .55rem 1.2rem;
  font-family: inherit;
  font-size: .85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .8px;
  color: var(--walnut);
  background: var(--butter);
  border: 2px solid var(--walnut);
  border-radius: 4px;
  cursor: pointer;
  margin-top: .8rem;
}

.btn-add:hover { background: var(--butter-deep); }

.tool-actions {
  display: flex;
  justify-content: center;
  gap: .8rem;
  margin-top: 1.6rem;
  padding-top: 1.4rem;
  border-top: 2px solid var(--walnut);
}

.tool-actions .btn-secondary {
  background: var(--cream);
  color: var(--walnut);
}

.tool-actions .btn-secondary:hover { background: var(--cream-deep); }

/* ---------- result ---------- */
.result {
  margin-top: 1.8rem;
  padding: 1.6rem 1.4rem;
  background: var(--cream-deep);
  border: 3px solid var(--walnut);
  border-radius: 6px;
}

.result h3 {
  margin: 0 0 1rem;
  text-align: center;
  color: var(--walnut);
  font-size: 1.4rem;
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: .8rem;
  margin-bottom: 1.4rem;
}

.result-tile {
  text-align: center;
  padding: 1rem .8rem;
  background: var(--cream);
  border: 2px solid var(--walnut);
  border-radius: 4px;
}

.result-tile-label {
  display: block;
  font-size: .72rem;
  color: var(--grey);
  margin-bottom: .35rem;
  text-transform: uppercase;
  letter-spacing: .8px;
  font-weight: 700;
}

.result-tile-value {
  display: block;
  font-family: "Bebas Neue", "Oswald", "Impact", sans-serif;
  font-size: 1.7rem;
  color: var(--tomato-dark);
  letter-spacing: .5px;
}

.payoff-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .9rem;
  background: var(--cream);
  border: 2px solid var(--walnut);
}
.payoff-table th, .payoff-table td {
  padding: .55rem .7rem;
  text-align: left;
  border-bottom: 1px solid var(--line);
}
.payoff-table th {
  background: var(--walnut);
  color: var(--cream);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .5px;
  font-size: .78rem;
}
.payoff-table tr:nth-child(even) td { background: var(--cream-deep); }

/* ---------- author / form ---------- */
.author-card {
  background: var(--butter);
  border: 2px solid var(--walnut);
  border-radius: 4px;
  padding: 1.2rem 1.5rem;
  margin: 2rem 0;
  color: var(--walnut);
  font-size: .95rem;
  box-shadow: 4px 4px 0 var(--walnut);
}

.author-card strong { font-weight: 700; }

.form-card {
  background: var(--cream);
  border: 3px solid var(--walnut);
  border-radius: 6px;
  padding: 1.8rem 2rem;
  margin: 1rem 0 2.5rem;
  box-shadow: 4px 4px 0 var(--walnut);
}

.form-card label {
  display: block;
  margin-bottom: 1rem;
  font-size: .82rem;
  font-weight: 700;
  color: var(--walnut);
  text-transform: uppercase;
  letter-spacing: .5px;
}

.form-card input, .form-card select, .form-card textarea {
  width: 100%;
  padding: .65rem .8rem;
  font-family: inherit;
  font-size: 1rem;
  color: var(--text);
  background: var(--cream);
  border: 2px solid var(--line);
  border-radius: 4px;
  margin-top: .35rem;
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
}

.form-card input:focus, .form-card select:focus, .form-card textarea:focus {
  border-color: var(--tomato);
  outline: none;
  background: #fff;
}

/* ---------- tables ---------- */
.cookie-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0 1.5rem;
  font-size: .92rem;
  border: 2px solid var(--walnut);
}

.cookie-table th, .cookie-table td {
  text-align: left;
  padding: .6rem .8rem;
  border-bottom: 1px solid var(--line);
}

.cookie-table th {
  background: var(--walnut);
  color: var(--cream);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .5px;
  font-size: .8rem;
}

.cookie-table tr:nth-child(even) td { background: var(--cream-deep); }

.cookie-table code {
  font-family: "SF Mono", Consolas, "Courier New", monospace;
  background: var(--butter);
  padding: 1px 6px;
  border: 1px solid var(--walnut);
  font-size: .85rem;
}

/* ---------- footer ---------- */
.site-footer {
  background: var(--walnut);
  color: var(--cream);
  padding: 2.6rem 0 1.4rem;
  margin-top: 3rem;
  border-top: 4px solid var(--tomato);
}

.site-footer .brand-name { color: var(--cream); }
.site-footer .brand-tagline { color: var(--butter); }
.site-footer .brand-mark { background: var(--cream); }

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 1.6rem;
}

@media (max-width: 700px) { .footer-grid { grid-template-columns: 1fr; } }

.site-footer h4 {
  font-family: "Bebas Neue", "Oswald", "Impact", sans-serif;
  font-weight: 700;
  color: var(--butter);
  margin: 0 0 .7rem;
  font-size: 1.05rem;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: .4rem; }
.site-footer a { color: var(--cream); text-decoration: none; font-size: .92rem; font-weight: 400; }
.site-footer a:hover { color: var(--butter); text-decoration: underline; }

.footer-bottom {
  border-top: 2px solid var(--tomato);
  padding-top: 1.2rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: .85rem;
  color: var(--cream-deep);
}

.footer-bottom small a { color: var(--butter); font-weight: 600; }