/*
  Ration Book — landing page styles.

  One sheet, loaded with `rel=preload` + `<link>` in the head. No inline
  style="" attributes anywhere in the markup — the CSP ships `style-src
  'self'` with no 'unsafe-inline', so an inline style would be silently
  dropped by the browser rather than just looking untidy.

  Palette and type are the ones agreed in the design brief: buff card,
  wartime green as the lead accent, postbox red held in reserve for
  anything that needs to read as "pay attention", never for routine UI.
  Dark mode follows prefers-color-scheme — useful at night and genuinely
  useful in a power cut, which is the one moment this app matters most.
*/

@font-face {
  font-family: 'Oswald';
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url('fonts/oswald-variable.woff2') format('woff2-variations'),
       url('fonts/oswald-variable.woff2') format('woff2');
}

@font-face {
  font-family: 'Bitter';
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url('fonts/bitter-variable.woff2') format('woff2-variations'),
       url('fonts/bitter-variable.woff2') format('woff2');
}

:root {
  color-scheme: light;

  /* buff card + ink */
  --base: #f3e9d6;
  --base-raised: #ece0c8;
  --card: #fbf5e8;
  --ink: #243027;
  --ink-muted: #5c6358;
  --rule: #cdbf9d;
  --rule-strong: #a8976d;

  /* accents */
  --green: #4a5d3a;
  --green-ink: #3a4a2d;
  --green-tint: #e4e8da;
  --red: #a8202a;
  --red-tint: #f3dcda;
  --navy: #2f4858;

  --focus: #1d5fa8;

  --font-display: 'Oswald', 'Arial Narrow', sans-serif;
  --font-body: 'Bitter', Georgia, 'Times New Roman', serif;

  --radius: 6px;
  --shadow-stamp: 0 1px 0 rgba(36, 48, 39, 0.08);
  --max-width: 72rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --base: #1a1c18;
    --base-raised: #23261f;
    --card: #23261f;
    --ink: #ede4d0;
    --ink-muted: #a8ac9e;
    --rule: #3c3f35;
    --rule-strong: #52564a;

    --green: #a9c08c;
    --green-ink: #c3d6ac;
    --green-tint: #2a3123;
    --red: #e8847e;
    --red-tint: #3a2321;
    --navy: #9db4c4;

    --focus: #7cb6f0;
  }
}

* {
  box-sizing: border-box;
}

html {
  font-size: 100%;
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  background: var(--base);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* a faint laid-paper texture, pure CSS, no image request */
body {
  background-image:
    repeating-linear-gradient(
      0deg,
      rgba(0, 0, 0, 0.012) 0px,
      rgba(0, 0, 0, 0.012) 1px,
      transparent 1px,
      transparent 3px
    );
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  line-height: 1.15;
  color: var(--ink);
}

h1 { font-size: clamp(2.25rem, 5vw + 1rem, 3.75rem); font-weight: 700; }
h2 { font-size: clamp(1.75rem, 3vw + 1rem, 2.5rem); margin-bottom: 0.75em; }
h3 { font-size: 1.25rem; letter-spacing: 0.01em; }

p {
  margin: 0 0 1.1em;
  max-width: 62ch;
}

a {
  color: var(--green);
  text-decoration-thickness: 2px;
  text-underline-offset: 0.15em;
}

a:hover {
  color: var(--green-ink);
}

/* visible, non-colour-dependent focus ring everywhere */
a:focus-visible,
button:focus-visible,
input:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
  border-radius: 2px;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  background: var(--card);
  color: var(--ink);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius);
  border: 2px solid var(--ink);
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  z-index: 100;
  transition: top 0.15s ease;
}

.skip-link:focus {
  top: 1rem;
}

.wrap {
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

section {
  padding-block: clamp(3rem, 8vw, 6rem);
}

section + section {
  border-top: 1px solid var(--rule);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 0.75rem;
}

.lede {
  font-size: 1.1875rem;
  color: var(--ink-muted);
  max-width: 54ch;
}

/* ============================= header ============================= */

.site-header {
  padding-block: 1.25rem;
}

.site-header .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.125rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ink);
  text-decoration: none;
}

.brand:hover {
  color: var(--ink);
}

.brand-mark {
  width: 2rem;
  height: 2rem;
  flex-shrink: 0;
}

.brand-mark-fill {
  fill: var(--green);
}

.brand-mark-ring {
  stroke: var(--base);
}

.brand-mark-text {
  fill: var(--base);
}

.site-header nav ul {
  list-style: none;
  display: flex;
  gap: 1.75rem;
  margin: 0;
  padding: 0;
}

.site-header nav a {
  color: var(--ink);
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.site-header nav a:hover {
  color: var(--green);
}

@media (max-width: 42rem) {
  .site-header nav {
    display: none;
  }
}

/* ============================= buttons ============================= */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9375rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  text-decoration: none;
  padding: 0.85em 1.6em;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
}

.btn-primary {
  background: var(--green);
  color: var(--base);
  border-color: var(--green);
}

.btn-primary:hover {
  background: var(--green-ink);
  border-color: var(--green-ink);
  color: var(--base);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--ink);
}

.btn-ghost:hover {
  background: var(--ink);
  color: var(--base);
}

/* ============================= hero ============================= */

.hero .wrap {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

@media (max-width: 56rem) {
  .hero .wrap {
    grid-template-columns: 1fr;
  }
  .hero .phone-frame {
    margin-inline: auto;
  }
}

.hero h1 {
  margin-top: 0;
}

.hero .subtitle {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--green);
  font-size: 1.0625rem;
  margin-bottom: 1rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-top: 2rem;
}

.store-note {
  font-size: 0.875rem;
  color: var(--ink-muted);
  margin: 0;
}

/* phone mock-up, pure CSS/SVG, no screenshot dependency */

.phone-frame {
  width: min(280px, 72vw);
  aspect-ratio: 9 / 19.5;
  margin-left: auto;
  background: #0f1310;
  border-radius: 2.75rem;
  padding: 0.5rem;
  box-shadow:
    0 1px 0 rgba(0, 0, 0, 0.3) inset,
    0 25px 50px -12px rgba(0, 0, 0, 0.35);
}

.phone-screen {
  position: relative;
  width: 100%;
  height: 100%;
  background: var(--card);
  border-radius: 2.25rem;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  font-family: var(--font-body);
}

.phone-notch {
  position: absolute;
  top: 0.5rem;
  left: 50%;
  transform: translateX(-50%);
  width: 34%;
  height: 1.1rem;
  background: #0f1310;
  border-radius: 999px;
  z-index: 2;
}

.phone-status {
  padding: 2.1rem 1.1rem 0.4rem;
  font-family: var(--font-display);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.phone-body {
  flex: 1;
  padding: 0.5rem 1.1rem 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.days-sorted-card {
  background: var(--green);
  color: var(--base);
  border-radius: 1rem;
  padding: 1.1rem 1.1rem 1rem;
  text-align: center;
}

.days-sorted-card .count {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  line-height: 1;
  display: block;
}

.days-sorted-card .count-label {
  font-family: var(--font-display);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.85;
}

.days-sorted-card .hint {
  margin-top: 0.6rem;
  font-size: 0.75rem;
  opacity: 0.9;
}

.mini-coupon {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  border: 1.5px dashed var(--rule-strong);
  border-radius: 0.6rem;
  padding: 0.55rem 0.75rem;
  font-size: 0.8125rem;
}

.mini-coupon .label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.mini-coupon .stamp-tick {
  color: var(--green);
  font-weight: 700;
}

.phone-tabbar {
  display: flex;
  justify-content: space-around;
  padding: 0.6rem 0;
  border-top: 1px solid var(--rule);
  font-family: var(--font-display);
  font-size: 0.5625rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--ink-muted);
}

.phone-tabbar .active {
  color: var(--green);
}

/* ============================= problem ============================= */

.problem .wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

@media (max-width: 48rem) {
  .problem .wrap {
    grid-template-columns: 1fr;
  }
}

.stat-block {
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 1.75rem;
}

.stat-block .big-number {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  color: var(--red);
  line-height: 1;
  display: block;
  margin-bottom: 0.4rem;
}

.stat-block .source {
  font-size: 0.8125rem;
  color: var(--ink-muted);
  margin: 0.75rem 0 0;
}

/* ============================= steps / features ============================= */

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-top: 2.5rem;
}

@media (max-width: 62rem) {
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 34rem) {
  .steps-grid {
    grid-template-columns: 1fr;
  }
}

.step-card {
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 1.5rem;
  position: relative;
}

.step-number {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.875rem;
  color: var(--base);
  background: var(--green);
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.75rem;
}

.step-card h3 {
  margin: 0 0 0.5rem;
}

.step-card p {
  font-size: 0.9375rem;
  color: var(--ink-muted);
  margin: 0;
}

/* ============================= days sorted showcase ============================= */

.showcase {
  background: var(--base-raised);
}

.showcase .wrap {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

@media (max-width: 56rem) {
  .showcase .wrap {
    grid-template-columns: 1fr;
  }
}

.ration-card {
  background: var(--card);
  border: 2px solid var(--ink);
  border-radius: 0.75rem;
  padding: 2rem;
  position: relative;
  box-shadow: var(--shadow-stamp);
}

.ration-card::before {
  content: 'RATION BOOK';
  position: absolute;
  top: -0.7rem;
  left: 1.5rem;
  background: var(--card);
  padding: 0 0.6rem;
  font-family: var(--font-display);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--ink-muted);
}

.ration-card .days-row {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.ration-card .days-number {
  font-family: var(--font-display);
  font-size: 4.5rem;
  font-weight: 700;
  color: var(--green);
  line-height: 1;
}

.ration-card .days-word {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ink-muted);
}

.coupon-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.6rem;
  margin-top: 1.25rem;
}

.coupon {
  border: 1.5px dashed var(--rule-strong);
  border-radius: 0.5rem;
  padding: 0.6rem;
  text-align: center;
  font-size: 0.75rem;
}

.coupon .stamp-tick {
  display: block;
  font-size: 1.1rem;
  color: var(--green);
  margin-bottom: 0.2rem;
}

.coupon.unchecked .stamp-tick {
  color: var(--rule-strong);
}

.showcase-copy .feature-list {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.85rem;
}

.showcase-copy .feature-list li {
  display: flex;
  gap: 0.65rem;
  align-items: flex-start;
}

.showcase-copy .feature-list .stamp-tick {
  color: var(--green);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 0.15em;
}

/* ============================= UK section ============================= */

.uk-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-top: 2.5rem;
}

@media (max-width: 62rem) {
  .uk-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 34rem) {
  .uk-grid {
    grid-template-columns: 1fr;
  }
}

.uk-card {
  text-align: center;
  padding: 1.5rem 1rem;
}

.uk-card .icon {
  width: 2.5rem;
  height: 2.5rem;
  margin: 0 auto 0.75rem;
  color: var(--green);
}

.uk-card h3 {
  font-size: 1rem;
  margin-bottom: 0.4rem;
}

.uk-card p {
  font-size: 0.875rem;
  color: var(--ink-muted);
  margin: 0 auto;
}

/* ============================= pricing ============================= */

.pricing-card {
  max-width: 28rem;
  margin: 2.5rem auto 0;
  background: var(--card);
  border: 2px solid var(--ink);
  border-radius: 0.75rem;
  padding: 2.5rem 2rem;
  text-align: center;
}

.pricing-card .price {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--green);
  line-height: 1;
}

.pricing-card .price-note {
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-top: 0.5rem;
}

.pricing-card ul {
  list-style: none;
  margin: 1.75rem 0;
  padding: 0;
  text-align: left;
  display: grid;
  gap: 0.65rem;
}

.pricing-card ul li {
  display: flex;
  gap: 0.6rem;
}

.pricing-card .stamp-tick {
  color: var(--green);
  font-weight: 700;
  flex-shrink: 0;
}

/* ============================= FAQ ============================= */

.faq-list {
  max-width: 44rem;
  margin: 2.5rem auto 0;
  display: grid;
  gap: 0.75rem;
}

.faq-item {
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
}

.faq-item summary {
  cursor: pointer;
  padding: 1.1rem 1.25rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

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

.faq-item summary::after {
  content: '+';
  font-size: 1.5rem;
  line-height: 1;
  color: var(--green);
  flex-shrink: 0;
}

.faq-item[open] summary::after {
  content: '\2212';
}

.faq-item .faq-answer {
  padding: 0 1.25rem 1.1rem;
  color: var(--ink-muted);
  font-size: 0.9375rem;
}

.faq-answer p:last-child {
  margin-bottom: 0;
}

/* ============================= CTA band ============================= */

.cta-band {
  background: var(--green);
  color: var(--base);
}

.cta-band h2,
.cta-band h3 {
  color: var(--base);
}

.cta-band .lede {
  color: var(--base);
  opacity: 0.9;
}

.cta-band .wrap {
  text-align: center;
}

.cta-band .btn-primary {
  background: var(--base);
  color: var(--green-ink);
  border-color: var(--base);
}

.cta-band .btn-primary:hover {
  background: var(--card);
  border-color: var(--card);
}

/* ============================= footer ============================= */

.site-footer {
  padding-block: 3rem;
  font-size: 0.875rem;
  color: var(--ink-muted);
}

.site-footer .wrap {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 2rem;
}

@media (max-width: 42rem) {
  .site-footer .wrap {
    grid-template-columns: 1fr;
  }
}

.site-footer h4 {
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  color: var(--ink);
  margin-bottom: 0.9rem;
}

.site-footer ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.5rem;
}

.site-footer a {
  color: var(--ink-muted);
}

.site-footer a:hover {
  color: var(--green);
}

.footer-disclaimer {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
  font-size: 0.8125rem;
}

.footer-disclaimer strong {
  color: var(--ink);
}

/* ============================= legal pages ============================= */

.legal main .wrap {
  max-width: 48rem;
}

.legal h2 {
  margin-top: 2rem;
}

.legal ul,
.legal ol {
  padding-left: 1.25em;
}

.legal li {
  margin-bottom: 0.5em;
}

.updated-note {
  color: var(--ink-muted);
  font-size: 0.9375rem;
}

/* ============================= 404 ============================= */

.error-page main {
  min-height: 60vh;
  display: flex;
  align-items: center;
}

.error-page .wrap {
  text-align: center;
}

.error-page .error-code {
  font-family: var(--font-display);
  font-size: clamp(4rem, 12vw, 7rem);
  font-weight: 700;
  color: var(--green);
  line-height: 1;
}

/* ============================= utility ============================= */

.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;
}

.center {
  text-align: center;
}

.center .lede {
  margin-inline: auto;
}

.narrow {
  max-width: 44rem;
  margin-inline: auto;
}