/* ==========================================================================
   Yo, Can I Get a Pen Pal? — Stylesheet
   A postal / stationery inspired design system.
   Palette (60/30/10): warm paper cream (60), ink navy (30), stamp red + mustard (10)
   Fonts: Fredoka (display), Inter (body), Caveat (handwritten accent)
   ========================================================================== */

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

* {
  margin: 0;
}

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

body {
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

input,
button,
textarea,
select {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
}

a {
  color: inherit;
}

ul,
ol {
  list-style: none;
  padding: 0;
}

p {
  overflow-wrap: break-word;
}

/* ------------------------------ Design tokens ---------------------------- */
:root {
  /* 60% — paper */
  --color-paper: #fbf3e4;
  --color-paper-deep: #f2e3c6;
  --color-cream-white: #fffdf8;

  /* 30% — ink */
  --color-ink: #22304a;
  --color-ink-soft: #4c5c7a;
  --color-ink-faint: #8792a6;

  /* 10% — accents */
  --color-stamp: #d8523f;
  --color-stamp-deep: #b93f2e;
  --color-mustard: #e4a63a;
  --color-airmail: #2e5c8a;

  --color-line: rgba(34, 48, 74, 0.16);
  --color-line-soft: rgba(34, 48, 74, 0.09);

  --font-display: "Fredoka", "Segoe UI", system-ui, sans-serif;
  --font-body: "Inter", "Segoe UI", system-ui, sans-serif;
  --font-accent: "Caveat", "Segoe UI", cursive;

  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 28px;

  --shadow-card: 0 14px 32px -18px rgba(34, 48, 74, 0.35);
  --shadow-pop: 0 20px 45px -20px rgba(217, 82, 63, 0.4);

  --container: 1180px;
}

body {
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
}

.container {
  width: min(var(--container), calc(100% - 40px));
  margin-inline: auto;
}

section {
  padding-block: clamp(3.5rem, 6vw, 6rem);
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--color-ink);
}

h1 {
  font-size: clamp(2.4rem, 5vw, 3.6rem);
}

h2 {
  font-size: clamp(1.8rem, 3.4vw, 2.5rem);
}

h3 {
  font-size: clamp(1.2rem, 2vw, 1.5rem);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-stamp-deep);
  background: rgba(216, 82, 63, 0.1);
  padding: 0.4em 0.9em;
  border-radius: 999px;
  border: 1px dashed rgba(216, 82, 63, 0.4);
}

.lede {
  font-size: clamp(1.05rem, 1.4vw, 1.2rem);
  color: var(--color-ink-soft);
  max-width: 54ch;
}

.accent-script {
  font-family: var(--font-accent);
  color: var(--color-stamp-deep);
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-ink);
  color: var(--color-cream-white);
  padding: 0.8em 1.2em;
  z-index: 10000;
  border-radius: 0 0 8px 0;
}

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

/* ------------------------------ Airmail stripe --------------------------- */
.airmail-stripe {
  height: 8px;
  width: 100%;
  background: repeating-linear-gradient(
    -45deg,
    var(--color-stamp) 0 14px,
    var(--color-cream-white) 14px 24px,
    var(--color-airmail) 24px 38px,
    var(--color-cream-white) 38px 48px
  );
}

/* ------------------------------ Perforation ------------------------------ */
.perforated {
  position: relative;
  background-image: radial-gradient(circle, var(--color-paper) 5px, transparent 5.5px);
  background-size: 22px 22px;
  background-repeat: repeat-x;
  background-position: left center;
  height: 10px;
  width: 100%;
}

/* ============================== Domain Sale Banner ======================= */
.domain-sale-banner {
  position: relative;
  z-index: 9999;
  width: 100%;
  color: #fffaf0;
  background: radial-gradient(circle at 15% 50%, rgba(228, 166, 58, 0.35), transparent 38%),
    linear-gradient(100deg, #1a2338 0%, #22304a 55%, #4a1f1a 100%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.22);
  font-family: var(--font-body);
}

.domain-sale-banner__content {
  width: min(1180px, calc(100% - 32px));
  min-height: 76px;
  margin: 0 auto;
  padding: 12px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.domain-sale-banner__text {
  display: grid;
  gap: 4px;
  line-height: 1.35;
}

.domain-sale-banner__text strong {
  font-family: var(--font-display);
  font-size: clamp(1rem, 2vw, 1.2rem);
  letter-spacing: -0.01em;
  font-weight: 600;
}

.domain-sale-banner__text span {
  color: rgba(255, 250, 240, 0.76);
  font-size: 0.92rem;
}

.domain-sale-banner__button {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 46px;
  padding: 0 20px;
  color: #2a1608;
  background: var(--color-mustard);
  border: 1px solid #f0c069;
  border-radius: 999px;
  box-shadow: 0 8px 20px rgba(228, 166, 58, 0.32);
  font-size: 0.94rem;
  font-weight: 700;
  text-decoration: none;
  transition: transform 160ms ease, background 160ms ease, box-shadow 160ms ease;
}

.domain-sale-banner__button:hover,
.domain-sale-banner__button:focus-visible {
  background: #edb44e;
  box-shadow: 0 10px 26px rgba(228, 166, 58, 0.42);
  transform: translateY(-2px);
  outline: none;
}

@media (max-width: 680px) {
  .domain-sale-banner__content {
    min-height: auto;
    padding: 14px 0;
    align-items: stretch;
    flex-direction: column;
    gap: 12px;
  }

  .domain-sale-banner__button {
    width: 100%;
  }
}

/* ================================= Header ================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 500;
  background: var(--color-paper);
  border-bottom: 1px dashed var(--color-line);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 1.1rem;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
}

.brand__mark {
  flex-shrink: 0;
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.05;
}

.brand__text small {
  font-family: var(--font-accent);
  font-size: 1rem;
  color: var(--color-stamp-deep);
  font-weight: 500;
}

.brand__text strong {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-ink);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.main-nav__list {
  display: flex;
  align-items: center;
  gap: 1.9rem;
}

.main-nav__list a {
  font-family: var(--font-display);
  font-size: 0.98rem;
  font-weight: 500;
  text-decoration: none;
  color: var(--color-ink-soft);
  position: relative;
  padding-bottom: 2px;
}

.main-nav__list a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -3px;
  width: 0;
  height: 2px;
  background: var(--color-stamp);
  transition: width 200ms ease;
}

.main-nav__list a:hover::after,
.main-nav__list a[aria-current="page"]::after {
  width: 100%;
}

.main-nav__list a[aria-current="page"] {
  color: var(--color-ink);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 8px;
}

.nav-toggle span {
  width: 24px;
  height: 2.5px;
  background: var(--color-ink);
  border-radius: 2px;
  transition: transform 200ms ease, opacity 200ms ease;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7.5px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7.5px) rotate(-45deg);
}

/* --------------------------------- Buttons -------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  padding: 0.85em 1.7em;
  border-radius: 999px;
  text-decoration: none;
  border: 2px solid transparent;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease, color 160ms ease;
  min-height: 48px;
}

.btn-primary {
  background: var(--color-stamp);
  color: var(--color-cream-white);
  box-shadow: var(--shadow-pop);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--color-stamp-deep);
  transform: translateY(-2px);
  outline: none;
}

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

.btn-outline:hover,
.btn-outline:focus-visible {
  background: var(--color-ink);
  color: var(--color-paper);
  transform: translateY(-2px);
  outline: none;
}

.btn-block {
  width: 100%;
}

/* --------------------------------- Hero ---------------------------------- */
.hero {
  padding-top: clamp(3rem, 6vw, 5rem);
}

.hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

@media (min-width: 900px) {
  .hero__grid {
    grid-template-columns: 1.05fr 0.95fr;
  }
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.hero__copy > * + * {
  margin-top: 1.1rem;
}

.hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 1.8rem;
  margin-top: 2.5rem;
  padding-top: 1.8rem;
  border-top: 1px dashed var(--color-line);
}

.hero__stat strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: var(--color-ink);
}

.hero__stat span {
  font-size: 0.85rem;
  color: var(--color-ink-soft);
}

.hero__art {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 320px;
}

.hero__postcard {
  position: absolute;
  width: 78%;
  transform: rotate(-6deg);
  filter: drop-shadow(0 22px 30px rgba(34, 48, 74, 0.22));
  top: 8%;
  left: 2%;
}

.hero__envelope {
  position: relative;
  width: 84%;
  transform: rotate(4deg);
  filter: drop-shadow(0 26px 40px rgba(34, 48, 74, 0.28));
}

/* --------------------------------- Cards ---------------------------------- */
.card {
  background: var(--color-cream-white);
  border-radius: var(--radius-md);
  padding: 1.9rem;
  border: 1px solid var(--color-line-soft);
  box-shadow: var(--shadow-card);
}

.card--stamp {
  position: relative;
  border: 2px dashed rgba(34, 48, 74, 0.28);
}

.card--stamp::before {
  content: "";
  position: absolute;
  inset: 8px;
  border: 1px solid rgba(34, 48, 74, 0.12);
  border-radius: calc(var(--radius-md) - 8px);
  pointer-events: none;
}

.badge-number {
  display: inline-grid;
  place-items: center;
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  border: 2px dashed var(--color-stamp);
  color: var(--color-stamp-deep);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  margin-bottom: 1rem;
}

.icon-tile {
  width: 3.2rem;
  height: 3.2rem;
  display: grid;
  place-items: center;
  border-radius: var(--radius-sm);
  background: rgba(46, 92, 138, 0.1);
  color: var(--color-airmail);
  margin-bottom: 1rem;
}

.icon-tile svg {
  width: 1.6rem;
  height: 1.6rem;
}

/* --------------------------------- Sections -------------------------------- */
.section-head {
  max-width: 62ch;
  margin-bottom: 2.8rem;
}

.section-head > * + * {
  margin-top: 0.9rem;
}

.section--alt {
  background: var(--color-paper-deep);
}

.grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.6rem;
}

@media (min-width: 700px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.4rem;
}

@media (min-width: 800px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

.steps {
  display: grid;
  gap: 1.6rem;
}

@media (min-width: 900px) {
  .steps {
    grid-template-columns: repeat(3, 1fr);
  }
}

.steps__connector {
  display: none;
}

@media (min-width: 900px) {
  .steps {
    position: relative;
  }
}

/* -------------------------------- Quote block ------------------------------ */
.quote-block {
  position: relative;
  background: var(--color-ink);
  color: var(--color-paper);
  border-radius: var(--radius-lg);
  padding: clamp(2.2rem, 5vw, 3.6rem);
  overflow: hidden;
}

.quote-block::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 85% 20%, rgba(228, 166, 58, 0.18), transparent 45%),
    radial-gradient(circle at 10% 90%, rgba(216, 82, 63, 0.22), transparent 40%);
  pointer-events: none;
}

.quote-block__mark {
  font-family: var(--font-accent);
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  line-height: 1.4;
  position: relative;
  max-width: 42ch;
}

.quote-block__cite {
  display: block;
  margin-top: 1.4rem;
  font-family: var(--font-body);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(251, 243, 228, 0.62);
  position: relative;
}

/* ---------------------------------- CTA ------------------------------------ */
.cta-banner {
  background: var(--color-stamp);
  background-image: radial-gradient(circle at 90% 10%, rgba(255, 255, 255, 0.16), transparent 45%);
  color: var(--color-cream-white);
  border-radius: var(--radius-lg);
  padding: clamp(2.4rem, 5vw, 3.8rem);
  display: grid;
  gap: 1.6rem;
  text-align: center;
  justify-items: center;
}

.cta-banner .btn-outline {
  border-color: var(--color-cream-white);
  color: var(--color-cream-white);
}

.cta-banner .btn-outline:hover {
  background: var(--color-cream-white);
  color: var(--color-stamp-deep);
}

/* -------------------------------- Footer ----------------------------------- */
.site-footer {
  background: var(--color-ink);
  color: rgba(251, 243, 228, 0.78);
  margin-top: 4rem;
}

.site-footer__top {
  padding-block: 3.5rem 2.5rem;
  display: grid;
  gap: 2.4rem;
  grid-template-columns: 1fr;
}

@media (min-width: 780px) {
  .site-footer__top {
    grid-template-columns: 1.3fr 0.7fr 0.7fr 1fr;
  }
}

.site-footer h4 {
  color: var(--color-cream-white);
  font-size: 1rem;
  margin-bottom: 1rem;
}

.site-footer__brand p {
  margin-top: 0.9rem;
  max-width: 34ch;
  color: rgba(251, 243, 228, 0.62);
  font-size: 0.94rem;
}

.site-footer__links li + li {
  margin-top: 0.6rem;
}

.site-footer__links a {
  text-decoration: none;
  color: rgba(251, 243, 228, 0.72);
  font-size: 0.94rem;
  transition: color 150ms ease;
}

.site-footer__links a:hover {
  color: var(--color-mustard);
}

.site-footer__social {
  display: flex;
  gap: 0.8rem;
  margin-top: 0.4rem;
}

.site-footer__social a {
  width: 2.4rem;
  height: 2.4rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(251, 243, 228, 0.08);
  transition: background 150ms ease;
}

.site-footer__social a:hover {
  background: var(--color-stamp);
}

.site-footer__social svg {
  width: 1.1rem;
  height: 1.1rem;
}

.site-footer__bottom {
  border-top: 1px solid rgba(251, 243, 228, 0.14);
  padding-block: 1.4rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  align-items: center;
  justify-content: space-between;
  font-size: 0.82rem;
  color: rgba(251, 243, 228, 0.5);
}

.site-footer__bottom a {
  color: rgba(251, 243, 228, 0.5);
  text-decoration: underline;
}

/* --------------------------------- Forms ------------------------------------ */
.form-card {
  background: var(--color-cream-white);
  border-radius: var(--radius-lg);
  padding: clamp(1.8rem, 4vw, 2.8rem);
  border: 1px solid var(--color-line-soft);
  box-shadow: var(--shadow-card);
}

.form-row {
  display: grid;
  gap: 1.3rem;
}

@media (min-width: 640px) {
  .form-row--two {
    grid-template-columns: 1fr 1fr;
  }
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.field label {
  font-family: var(--font-display);
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--color-ink);
}

.field input,
.field textarea,
.field select {
  background: var(--color-paper);
  border: 1.5px solid var(--color-line);
  border-radius: var(--radius-sm);
  padding: 0.85em 1em;
  font-size: 1rem;
  min-height: 48px;
  transition: border-color 150ms ease, box-shadow 150ms ease;
}

.field textarea {
  min-height: 140px;
  resize: vertical;
}

.field input:focus,
.field textarea:focus,
.field select:focus {
  outline: none;
  border-color: var(--color-stamp);
  box-shadow: 0 0 0 4px rgba(216, 82, 63, 0.15);
}

.field-hint {
  font-size: 0.8rem;
  color: var(--color-ink-faint);
}

.form-status {
  margin-top: 1.2rem;
  font-size: 0.95rem;
  font-weight: 500;
  display: none;
}

.form-status.is-visible {
  display: block;
}

.form-status--success {
  color: #2f7a4c;
}

.checkbox-row {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
  font-size: 0.88rem;
  color: var(--color-ink-soft);
}

.checkbox-row input {
  margin-top: 0.25rem;
  min-height: auto;
}

/* -------------------------------- Contact extras ----------------------------- */
.contact-info {
  display: grid;
  gap: 1.4rem;
}

.contact-info__item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.contact-info__item .icon-tile {
  margin-bottom: 0;
  flex-shrink: 0;
}

.faq {
  display: grid;
  gap: 1rem;
}

.faq__item {
  background: var(--color-cream-white);
  border: 1px solid var(--color-line-soft);
  border-radius: var(--radius-sm);
  padding: 0;
  overflow: hidden;
}

.faq__item summary {
  cursor: pointer;
  list-style: none;
  padding: 1.1rem 1.4rem;
  font-family: var(--font-display);
  font-weight: 500;
  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: 1.3rem;
  color: var(--color-stamp);
  flex-shrink: 0;
  transition: transform 200ms ease;
}

.faq__item[open] summary::after {
  transform: rotate(45deg);
}

.faq__item p {
  padding: 0 1.4rem 1.2rem;
  color: var(--color-ink-soft);
  font-size: 0.95rem;
}

/* ---------------------------------- About page -------------------------------- */
.timeline {
  display: grid;
  gap: 1.8rem;
  position: relative;
}

.timeline__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.2rem;
}

.timeline__dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-stamp);
  margin-top: 0.4rem;
  position: relative;
}

.timeline__item:not(:last-child) .timeline__dot::after {
  content: "";
  position: absolute;
  top: 14px;
  left: 5px;
  width: 2px;
  height: calc(100% + 1.4rem);
  background: var(--color-line);
}

.values-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.4rem;
}

@media (min-width: 700px) {
  .values-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ----------------------------------- 404 page ---------------------------------- */
.error-page {
  min-height: calc(100vh - 300px);
  display: grid;
  place-items: center;
  text-align: center;
  padding-block: 4rem;
}

.error-page__stamp {
  width: 130px;
  margin: 0 auto 1.6rem;
}

.error-page__code {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 12vw, 6rem);
  color: var(--color-stamp);
  line-height: 1;
}

.error-page__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-top: 2rem;
}

/* --------------------------------- Utility ---------------------------------- */
.text-center {
  text-align: center;
}

.mt-lg {
  margin-top: 2.5rem;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* --------------------------------- Responsive nav ---------------------------------- */
@media (max-width: 880px) {
  .nav-toggle {
    display: inline-flex;
  }

  .main-nav {
    position: fixed;
    inset: 0 0 0 auto;
    top: 0;
    height: 100vh;
    width: min(320px, 80vw);
    background: var(--color-cream-white);
    flex-direction: column;
    align-items: flex-start;
    padding: 6rem 2rem 2rem;
    transform: translateX(100%);
    transition: transform 260ms ease;
    box-shadow: -20px 0 40px rgba(34, 48, 74, 0.15);
  }

  .main-nav.is-open {
    transform: translateX(0);
  }

  .main-nav__list {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.6rem;
    width: 100%;
  }

  .main-nav__list a {
    font-size: 1.15rem;
  }

  .main-nav .btn {
    margin-top: 1rem;
    width: 100%;
  }

  .nav-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(34, 48, 74, 0.35);
    opacity: 0;
    pointer-events: none;
    transition: opacity 220ms ease;
    z-index: 400;
  }

  .nav-backdrop.is-visible {
    opacity: 1;
    pointer-events: auto;
  }
}

@media (min-width: 881px) {
  .nav-backdrop {
    display: none;
  }
}

/* --------------------------------- Print (nice-to-have) ------------------------------ */
@media print {
  .domain-sale-banner,
  .site-header,
  .site-footer,
  .nav-backdrop {
    display: none;
  }
}