/* Paydays Until — stylesheet */

:root {
  color-scheme: light;

  --color-bg: #f6f7f5;
  --color-surface: #ffffff;
  --color-text: #16201d;
  --color-text-muted: #5c6a64;
  --color-border: #dde3df;
  --color-border-strong: #c4cdc7;

  --color-accent: #0d7a63;
  --color-accent-hover: #0a5f4d;
  --color-accent-soft: #e6f2ee;
  --color-accent-contrast: #ffffff;

  --color-danger: #b3261e;
  --color-danger-soft: #fbeceb;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-pill: 999px;

  --shadow-card: 0 1px 2px rgba(22, 32, 29, 0.06), 0 1px 1px rgba(22, 32, 29, 0.04);

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";

  --content-width: 720px;
  --page-padding: 1.25rem;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  display: block;
}

h1, h2, h3 {
  line-height: 1.2;
  font-weight: 700;
  color: var(--color-text);
}

h1 {
  font-size: clamp(1.6rem, 4.5vw, 2.1rem);
  margin: 0 0 0.5rem;
}

h2 {
  font-size: clamp(1.25rem, 3.5vw, 1.5rem);
  margin: 0 0 0.75rem;
}

h3 {
  font-size: 1.05rem;
  margin: 1.25rem 0 0.4rem;
}

p {
  margin: 0 0 0.9rem;
}

a {
  color: var(--color-accent);
}

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

[hidden] {
  display: none !important;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-accent);
  color: var(--color-accent-contrast);
  padding: 0.75rem 1.25rem;
  border-radius: 0 0 var(--radius-sm) 0;
  z-index: 100;
}

.skip-link:focus {
  left: 0;
}

:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* Header */

.site-header {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
}

.header-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 0.85rem var(--page-padding);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--color-text);
}

.brand-mark {
  border-radius: 6px;
}

.brand-name {
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--color-border-strong);
  background: var(--color-surface);
  color: var(--color-text);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.9rem;
  font-size: 0.95rem;
  cursor: pointer;
}

.site-nav {
  display: none;
  flex-direction: column;
  gap: 0.35rem;
  width: 100%;
  border-top: 1px solid var(--color-border);
  padding-top: 0.6rem;
  margin-top: 0.35rem;
}

.site-nav.is-open {
  display: flex;
}

.site-nav a {
  display: block;
  padding: 0.5rem 0.25rem;
  text-decoration: none;
  color: var(--color-text);
  border-radius: var(--radius-sm);
}

.site-nav a:hover {
  background: var(--color-accent-soft);
  color: var(--color-accent-hover);
}

@media (min-width: 46rem) {
  .nav-toggle {
    display: none;
  }

  .site-nav {
    display: flex !important;
    flex-direction: row;
    width: auto;
    border-top: none;
    padding-top: 0;
    margin-top: 0;
    gap: 0.25rem;
  }

  .site-nav a {
    padding: 0.4rem 0.7rem;
  }
}

/* Layout */

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 var(--page-padding) 2rem;
}

.calculator-section {
  padding-top: 1.25rem;
}

.calculator-intro {
  max-width: var(--content-width);
  margin: 0 auto 1rem;
}

.lede {
  color: var(--color-text-muted);
  font-size: 1.05rem;
  margin-bottom: 0;
}

.content-section {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 1.75rem 0;
  border-top: 1px solid var(--color-border);
}

.content-section-first {
  border-top: none;
  padding-top: 1.5rem;
}

.small-print {
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

.plain-list {
  padding-left: 1.1rem;
  margin: 0 0 0.9rem;
}

.plain-list li {
  margin-bottom: 0.4rem;
}

.link-grid {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
  display: grid;
  gap: 0.6rem;
}

.link-grid a {
  display: block;
  padding: 0.85rem 1rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: var(--color-text);
  font-weight: 600;
}

.link-grid a:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-hover);
}

.tag-list {
  list-style: none;
  padding: 0;
  margin: 1rem 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag-list li {
  background: var(--color-accent-soft);
  color: var(--color-accent-hover);
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-pill);
  font-size: 0.9rem;
  font-weight: 600;
}

.faq-item {
  margin-bottom: 1.25rem;
}

.faq-item h3 {
  margin-top: 0;
}

/* Buttons */

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent);
  color: var(--color-accent-contrast);
  border: none;
  border-radius: var(--radius-pill);
  padding: 0.85rem 1.75rem;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  width: 100%;
}

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

.btn-inline {
  width: auto;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-pill);
  padding: 0.6rem 1.1rem;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
}

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

/* Calculator form */

.noscript-warning {
  background: var(--color-danger-soft);
  color: var(--color-danger);
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
  max-width: var(--content-width);
  margin: 0 auto 1rem;
}

.calculator-form {
  max-width: var(--content-width);
  margin: 0 auto;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  box-shadow: var(--shadow-card);
}

.field {
  margin-bottom: 1.1rem;
}

.field:last-of-type {
  margin-bottom: 1.25rem;
}

label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.4rem;
  font-size: 0.95rem;
}

.optional {
  font-weight: 400;
  color: var(--color-text-muted);
}

input[type="date"],
input[type="number"],
select {
  width: 100%;
  font: inherit;
  font-size: 1rem;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text);
  appearance: none;
}

select {
  background-image: linear-gradient(45deg, transparent 50%, var(--color-text-muted) 50%), linear-gradient(135deg, var(--color-text-muted) 50%, transparent 50%);
  background-position: calc(100% - 1.2rem) center, calc(100% - 0.9rem) center;
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
  padding-right: 2.25rem;
}

input:focus,
select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-soft);
}

.currency-input {
  position: relative;
}

.currency-symbol {
  position: absolute;
  left: 0.9rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  pointer-events: none;
}

.currency-input input {
  padding-left: 1.9rem;
}

fieldset {
  border: none;
  padding: 0;
  margin: 0;
}

legend {
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 0.4rem;
  padding: 0;
}

.radio-option {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 400;
  padding: 0.5rem 0.1rem;
  cursor: pointer;
}

.radio-option input {
  width: 1.1rem;
  height: 1.1rem;
  accent-color: var(--color-accent);
  flex-shrink: 0;
}

.quick-targets {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.6rem;
  flex-wrap: wrap;
}

.quick-target-btn {
  background: var(--color-accent-soft);
  color: var(--color-accent-hover);
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  padding: 0.4rem 0.9rem;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
}

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

.field-error {
  color: var(--color-danger);
  font-size: 0.85rem;
  margin: 0.4rem 0 0;
  min-height: 0;
}

.field-error:empty {
  display: none;
}

.form-error {
  color: var(--color-danger);
  background: var(--color-danger-soft);
  border-radius: var(--radius-md);
  padding: 0.75rem 0.9rem;
  font-size: 0.9rem;
  margin: 0 0 1rem;
}

.form-error:empty {
  display: none;
  padding: 0;
  margin: 0;
}

.more-options {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
  margin-bottom: 1.25rem;
}

.more-options summary {
  cursor: pointer;
  font-weight: 600;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.more-options summary::-webkit-details-marker {
  display: none;
}

.more-options summary::after {
  content: "+";
  font-size: 1.2rem;
  color: var(--color-accent);
}

.more-options[open] summary::after {
  content: "−";
}

.more-options-content {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
}

.more-options-content .field:last-child {
  margin-bottom: 0;
}

/* Results */

.results {
  max-width: var(--content-width);
  margin: 1rem auto 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-card);
}

.result-primary {
  text-align: center;
  padding-bottom: 1.1rem;
  margin-bottom: 1.1rem;
  border-bottom: 1px solid var(--color-border);
}

.result-number {
  font-size: clamp(2.1rem, 8vw, 3rem);
  font-weight: 800;
  color: var(--color-accent);
  margin: 0 0 0.35rem;
  letter-spacing: -0.02em;
}

.result-detail {
  color: var(--color-text-muted);
  margin: 0;
  font-size: 1.05rem;
}

.result-savings,
.result-whatif {
  background: var(--color-accent-soft);
  border-radius: var(--radius-md);
  padding: 0.9rem 1rem;
  margin-bottom: 1rem;
}

.result-savings p,
.result-whatif p {
  margin: 0;
}

.result-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1.25rem;
}

.copy-feedback {
  color: var(--color-accent);
  font-weight: 600;
  font-size: 0.9rem;
  min-height: 1.2em;
}

.paydays-list-wrap h2 {
  font-size: 1.05rem;
  margin-bottom: 0.6rem;
}

.paydays-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.paydays-list li {
  position: relative;
  padding: 0.65rem 0.9rem 0.65rem 1.6rem;
  background: var(--color-bg);
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.paydays-list li::before {
  content: "";
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
}

.breakdown {
  margin-top: 1.25rem;
  border-top: 1px solid var(--color-border);
  padding-top: 1.1rem;
}

.breakdown summary {
  cursor: pointer;
  font-weight: 600;
  list-style: none;
}

.breakdown summary::-webkit-details-marker {
  display: none;
}

.breakdown summary::after {
  content: " +";
  color: var(--color-accent);
}

.breakdown[open] summary::after {
  content: " −";
}

.breakdown-list {
  list-style: none;
  padding: 0;
  margin: 0.9rem 0 0;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.breakdown-list li {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.2rem 0.75rem;
  background: var(--color-bg);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.85rem;
  font-size: 0.92rem;
}

.breakdown-date {
  font-weight: 700;
  flex-basis: 100%;
}

.breakdown-save {
  color: var(--color-text);
}

.breakdown-total {
  color: var(--color-text-muted);
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
  margin-top: 2rem;
}

.footer-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 1.5rem var(--page-padding) 2rem;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  margin-bottom: 1rem;
}

.footer-nav a {
  color: var(--color-text);
  text-decoration: none;
  font-size: 0.9rem;
}

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

.footer-note {
  color: var(--color-text-muted);
  font-size: 0.85rem;
  max-width: 40rem;
  margin-bottom: 0.5rem;
}

.footer-copyright {
  color: var(--color-text-muted);
  font-size: 0.85rem;
  margin: 0;
}

/* 404 */

.not-found-section {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 3rem 0;
  text-align: center;
}

.not-found-section .result-number {
  font-size: clamp(2.5rem, 10vw, 4rem);
}