/* ==========================================================================
   Saddle Stitch PDF — "Creative Sketchbook" zine styles
   Warm paper, hand-drawn borders, red-thread dashes, teal accents, doodles.
   System font stacks only. No webfonts.
   ========================================================================== */

:root {
  --paper: #FAF3E7;
  --paper-dark: #F1E6D2;
  --ink: #2B2521;
  --ink-soft: #4A4038;
  --thread: #D64545;
  --thread-dark: #A93636;
  --teal: #2F8F83;
  --teal-dark: #1F6D63;
  --marker: #FFE07D;
  --marker-2: #C9E7A6;
  --line: #2B2521;
  --card-bg: #FFFDF8;
  --shadow: rgba(43, 37, 33, 0.18);
  --radius: 10px;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI Rounded", "SF Rounded",
    "Segoe UI", Roboto, "Comic Sans MS", "Trebuchet MS", sans-serif;
  --font-display: "Segoe UI Rounded", -apple-system, BlinkMacSystemFont, "SF Rounded",
    "Trebuchet MS", "Segoe UI", sans-serif;
  --maxw: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
  .reveal { opacity: 1 !important; transform: none !important; animation: none !important; }
}

/* ---------- Load reveal (staggered fade-up) ---------- */
@media (prefers-reduced-motion: no-preference) {
  @keyframes fadeUp {
    from { opacity: 0; transform: translateY(14px); }
    to { opacity: 1; transform: translateY(0); }
  }
  .reveal {
    opacity: 0;
    animation: fadeUp 0.5s ease-out forwards;
  }
  .hero .hero-eyebrow.reveal { animation-delay: 0.05s; }
  .hero h1.reveal { animation-delay: 0.15s; }
  .hero .hero-sub.reveal { animation-delay: 0.25s; }
  .hero .hero-ctas.reveal { animation-delay: 0.35s; }
  .hero .trust-line.reveal { animation-delay: 0.45s; }
  .hero .hero-art .reveal { animation-delay: 0.3s; }
}

body {
  margin: 0;
  background-color: var(--paper);
  background-image:
    radial-gradient(circle at 1px 1px, rgba(43,37,33,0.06) 1px, transparent 0);
  background-size: 22px 22px;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a { color: var(--teal-dark); text-decoration-thickness: 2px; text-underline-offset: 3px; }
a:hover { color: var(--thread-dark); }

:focus-visible {
  outline: 3px dashed var(--thread);
  outline-offset: 3px;
  border-radius: 4px;
}

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

/* ---------- Hand-drawn borders ---------- */
.sketch-border {
  border: 2.5px solid var(--line);
  border-radius: 14px 12px 15px 11px / 11px 14px 10px 15px;
  box-shadow: 3px 4px 0 var(--shadow);
  background: var(--card-bg);
}

.sketch-border-soft {
  border: 2px solid var(--line);
  border-radius: 12px 10px 13px 9px / 9px 12px 8px 13px;
}

/* ---------- Stitch dashes (red thread motif) ---------- */
.stitch-line {
  border: none;
  height: 0;
  border-top: 3px dashed var(--thread);
  margin: 2.5rem 0;
  opacity: 0.85;
}

.stitch-rule {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0.5rem 0 1.25rem;
  color: var(--thread-dark);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 700;
}
.stitch-rule::before, .stitch-rule::after {
  content: "";
  flex: 1;
  height: 0;
  border-top: 3px dashed var(--thread);
}

/* ---------- Marker highlight ---------- */
mark, .marker {
  background: linear-gradient(180deg, transparent 55%, var(--marker) 55%, var(--marker) 92%, transparent 92%);
  color: var(--ink);
  padding: 0 2px;
}
.marker-teal {
  background: linear-gradient(180deg, transparent 55%, var(--marker-2) 55%, var(--marker-2) 92%, transparent 92%);
}

/* ---------- Skip link ---------- */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--ink);
  color: var(--paper);
  padding: 10px 16px;
  z-index: 100;
  border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

/* ---------- Header / nav ---------- */
.site-header {
  border-bottom: 2.5px dashed var(--thread);
  background: var(--paper);
  position: sticky;
  top: 0;
  z-index: 50;
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  gap: 12px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--ink);
  text-decoration: none;
}
.brand:hover { color: var(--ink); }
.brand-mark { width: 36px; height: 36px; flex-shrink: 0; }
.brand-name span { color: var(--thread); }

.main-nav { display: flex; align-items: center; gap: 20px; }
.main-nav ul {
  list-style: none;
  display: flex;
  gap: 18px;
  margin: 0;
  padding: 0;
  font-weight: 600;
}
.main-nav a { color: var(--ink); text-decoration: none; }
.main-nav a:hover { color: var(--thread); text-decoration: underline wavy; }

.nav-toggle {
  display: none;
  background: var(--card-bg);
  border: 2px solid var(--line);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 1.1rem;
  cursor: pointer;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1rem;
  padding: 12px 22px;
  border-radius: 10px 12px 9px 13px / 13px 9px 12px 10px;
  border: 2.5px solid var(--line);
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  box-shadow: 3px 3px 0 var(--line);
}
.btn:hover { transform: translate(-2px, -2px); box-shadow: 5px 5px 0 var(--line); }
.btn:active { transform: translate(0, 0); box-shadow: 1px 1px 0 var(--line); }
.btn-primary { background: var(--thread); color: #fff; }
.btn-primary:hover { color: #fff; }
.btn-secondary { background: var(--teal); color: #fff; }
.btn-secondary:hover { color: #fff; }
.btn-ghost { background: var(--card-bg); color: var(--ink); }
.btn-small { padding: 8px 14px; font-size: 0.85rem; }
.nav-cta { white-space: nowrap; }

/* ---------- Hero ---------- */
.hero {
  padding: 56px 0 40px;
  position: relative;
}
.hero .wrap {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
}
.hero-eyebrow {
  display: inline-block;
  font-weight: 800;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--thread-dark);
  background: #fff;
  border: 2px dashed var(--thread);
  border-radius: 999px;
  padding: 5px 14px;
  margin-bottom: 14px;
}
h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3rem);
  line-height: 1.12;
  margin: 0 0 16px;
  color: var(--ink);
}
.hero-sub {
  font-size: 1.15rem;
  color: var(--ink-soft);
  max-width: 46ch;
  margin: 0 0 22px;
}
.hero-ctas { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; margin-bottom: 14px; }
.trust-line {
  font-size: 0.9rem;
  color: var(--teal-dark);
  font-weight: 700;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}
.trust-line::before { content: "✓"; }

.hero-art { position: relative; }
.taped-frame {
  background: var(--card-bg);
  border: 2.5px solid var(--line);
  border-radius: 10px;
  box-shadow: 4px 5px 0 var(--shadow);
  padding: 16px;
  position: relative;
  transform: rotate(-1.5deg);
}
.taped-frame::before, .taped-frame::after {
  content: "";
  position: absolute;
  width: 60px;
  height: 22px;
  background: rgba(255, 224, 125, 0.75);
  border: 1px solid rgba(43,37,33,0.25);
  top: -12px;
}
.taped-frame::before { left: 20px; transform: rotate(-8deg); }
.taped-frame::after { right: 20px; transform: rotate(6deg); }

/* ---------- Sections ---------- */
main { display: block; }
section { padding: 48px 0; }
/* Stitch-dash divider between adjacent page sections (red thread motif, CSS-only) */
section + section { position: relative; }
section + section::before {
  content: "";
  display: block;
  max-width: var(--maxw);
  margin: 0 auto;
  border-top: 3px dashed var(--thread);
  opacity: 0.55;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  margin: 0 0 8px;
  text-align: center;
}
.section-sub {
  text-align: center;
  color: var(--ink-soft);
  max-width: 60ch;
  margin: 0 auto 36px;
}

/* ---------- How it works ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.step-card {
  padding: 24px;
  text-align: left;
  position: relative;
}
.step-num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.85rem;
  color: var(--thread);
  margin-bottom: 6px;
}
.step-icon { width: 48px; height: 48px; margin-bottom: 12px; }
.step-card h3 { margin: 0 0 8px; font-family: var(--font-display); }
.step-card p { margin: 0; color: var(--ink-soft); font-size: 0.95rem; }

/* ---------- Feature grid ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.feature-card {
  padding: 22px;
}
.feature-card .feature-icon {
  width: 34px; height: 34px; margin-bottom: 10px; color: var(--teal-dark);
}
.feature-card h3 { margin: 0 0 6px; font-size: 1.05rem; font-family: var(--font-display); }
.feature-card p { margin: 0; color: var(--ink-soft); font-size: 0.92rem; }

/* ---------- Calculator ---------- */
.calculator {
  padding: 28px;
}
.calc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  align-items: start;
}
.calc-field label {
  display: block;
  font-weight: 700;
  margin-bottom: 8px;
}
.calc-field input[type="number"] {
  width: 100%;
  font-size: 1.4rem;
  padding: 12px 14px;
  border: 2.5px solid var(--line);
  border-radius: 8px;
  background: #fff;
  font-family: var(--font-display);
}
.calc-field input:hover { border-color: var(--thread); }
.calc-field input:focus-visible { outline: 3px dashed var(--thread); outline-offset: 2px; border-color: var(--thread); }
.calc-hint { font-size: 0.85rem; color: var(--ink-soft); margin-top: 8px; }
.calc-result {
  background: var(--paper-dark);
  border: 2px dashed var(--teal);
  border-radius: 10px;
  padding: 18px 20px;
}
.calc-result dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; }
.calc-result dt { font-weight: 700; color: var(--ink-soft); }
.calc-result dd { margin: 0; font-family: var(--font-display); font-weight: 800; }
.calc-note { margin-top: 14px; font-size: 0.88rem; color: var(--ink-soft); }

/* ---------- FAQ ---------- */
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
details.faq-item {
  padding: 4px 20px;
  transition: box-shadow 0.15s ease, transform 0.15s ease;
}
details.faq-item:hover { box-shadow: 4px 5px 0 var(--shadow); }
details.faq-item summary {
  cursor: pointer;
  font-weight: 700;
  font-family: var(--font-display);
  padding: 14px 0;
  list-style: none;
  position: relative;
  padding-right: 46px;
}
details.faq-item summary::-webkit-details-marker { display: none; }
details.faq-item summary:hover { color: var(--thread-dark); }
details.faq-item summary:focus-visible {
  outline: 3px dashed var(--thread);
  outline-offset: 4px;
  border-radius: 6px;
}
/* Sticker-style FAQ marker: a rotated, taped-on badge instead of a plain glyph */
details.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 2px;
  top: 8px;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 2px solid var(--line);
  background: var(--marker);
  color: var(--ink);
  font-size: 1.05rem;
  font-weight: 800;
  line-height: 1;
  box-shadow: 2px 2px 0 var(--shadow);
  transform: rotate(-6deg);
  transition: transform 0.2s ease, background 0.2s ease;
}
details.faq-item[open] summary::after {
  content: "\2212";
  background: var(--marker-2);
  transform: rotate(8deg);
}
details.faq-item p { color: var(--ink-soft); margin: 0 0 16px; }

/* ---------- Blog cards ---------- */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}
.blog-card {
  padding: 20px;
  display: flex;
  flex-direction: column;
  height: 100%;
  text-decoration: none;
  color: var(--ink);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.blog-card:hover { color: var(--ink); transform: translate(-2px, -2px); box-shadow: 5px 6px 0 var(--shadow); }
.blog-card:active { transform: translate(0, 0); box-shadow: 2px 2px 0 var(--shadow); }
.blog-card:focus-visible { outline: 3px dashed var(--thread); outline-offset: 3px; }
.blog-card .kicker {
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--teal-dark);
  margin-bottom: 8px;
}
.blog-card h3 { margin: 0 0 10px; font-family: var(--font-display); font-size: 1.1rem; }
.blog-card p { margin: 0; color: var(--ink-soft); font-size: 0.92rem; flex-grow: 1; }
.blog-card .read-more { margin-top: 14px; font-weight: 700; color: var(--thread-dark); }

/* ---------- Blog listing hero ---------- */
.blog-hero { padding: 44px 0 20px; text-align: center; }

/* ---------- Article ---------- */
.article-header { padding: 44px 0 20px; }
.article-header .kicker {
  color: var(--teal-dark);
  font-weight: 800;
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
}
.byline {
  font-size: 0.9rem;
  color: var(--ink-soft);
  margin: 10px 0 0;
}
.answer-block {
  padding: 22px 24px;
  margin: 24px 0 36px;
  position: relative;
}
.answer-block .label {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #fff;
  background: var(--thread);
  padding: 3px 12px;
  border-radius: 999px;
  margin-bottom: 10px;
}
.answer-block p { margin: 0; font-size: 1.08rem; }

article.post {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 20px 60px;
}
article.post h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin: 2.2rem 0 0.8rem;
}
article.post h2::before {
  content: "\2726 ";
  color: var(--thread);
}
article.post p { margin: 0 0 1rem; }
article.post ul, article.post ol { margin: 0 0 1rem; padding-left: 1.4rem; }
article.post li { margin-bottom: 0.4rem; }
article.post figure {
  margin: 1.8rem 0;
  padding: 18px;
  position: relative;
}
/* Taped-frame treatment for every in-article figure: a strip of "tape" at each top corner */
article.post figure.sketch-border {
  transform: rotate(-0.6deg);
}
article.post figure.sketch-border:nth-of-type(even) { transform: rotate(0.6deg); }
article.post figure.sketch-border::before,
article.post figure.sketch-border::after {
  content: "";
  position: absolute;
  width: 54px;
  height: 20px;
  background: rgba(255, 224, 125, 0.75);
  border: 1px solid rgba(43, 37, 33, 0.25);
  top: -10px;
  pointer-events: none;
}
article.post figure.sketch-border::before { left: 22px; transform: rotate(-7deg); }
article.post figure.sketch-border::after { right: 22px; transform: rotate(5deg); }
article.post figcaption {
  font-size: 0.88rem;
  color: var(--ink-soft);
  margin-top: 10px;
  text-align: center;
}
article.post .external-link-note {
  font-size: 0.85rem;
  color: var(--ink-soft);
}

.table-wrap {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 1.6rem 0;
  border-radius: 8px;
}
.table-wrap table.data-table { margin: 0; }

table.data-table {
  width: 100%;
  min-width: 480px;
  border-collapse: collapse;
  margin: 1.6rem 0;
  font-size: 0.94rem;
  background: #fff;
  border: 2px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}
table.data-table caption {
  text-align: left;
  font-weight: 700;
  padding: 8px 4px;
  color: var(--ink-soft);
  font-size: 0.85rem;
}
table.data-table th, table.data-table td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--paper-dark);
}
table.data-table td.num, table.data-table th.num { font-variant-numeric: tabular-nums; }
table.data-table thead th {
  background: var(--teal);
  color: #fff;
  font-family: var(--font-display);
}
table.data-table tbody tr:nth-child(even) { background: var(--paper-dark); }
table.data-table tbody tr:hover { background: var(--marker); background: color-mix(in srgb, var(--marker) 45%, transparent); }

.post-cta {
  margin: 2.5rem 0;
  padding: 26px;
  text-align: center;
}
.post-cta h3 { margin: 0 0 8px; font-family: var(--font-display); }
.post-cta p { color: var(--ink-soft); margin: 0 0 18px; }

.article-faq { margin-top: 2.5rem; }

.related-links {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 2px dashed var(--thread);
}
.related-links h3 { font-family: var(--font-display); margin-bottom: 10px; }

/* ---------- doodle arrow ---------- */
.doodle-arrow { width: 60px; height: 40px; color: var(--thread); }

/* ---------- Footer ---------- */
footer.site-footer {
  border-top: 2.5px dashed var(--thread);
  background: var(--paper-dark);
  padding: 44px 0 30px;
  margin-top: 40px;
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  margin-bottom: 28px;
}
.footer-col h4 {
  font-family: var(--font-display);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 0 0 12px;
  color: var(--thread-dark);
}
.footer-col ul { list-style: none; margin: 0; padding: 0; }
.footer-col li { margin-bottom: 8px; }
.footer-col a { color: var(--ink-soft); text-decoration: none; font-size: 0.92rem; }
.footer-col a:hover { color: var(--thread); text-decoration: underline; }
.footer-col a:focus-visible { outline: 2px dashed var(--thread); outline-offset: 2px; }
.footer-about p { margin: 0; color: var(--ink-soft); font-size: 0.92rem; line-height: 1.55; }
.footer-bottom {
  border-top: 1px solid rgba(43,37,33,0.15);
  padding-top: 18px;
  font-size: 0.85rem;
  color: var(--ink-soft);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}
.footer-bottom a { color: var(--ink-soft); }

/* ---------- 404 ---------- */
.error-page {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 20px;
}
.error-page .sketch-border { padding: 44px 36px; max-width: 520px; }
.error-page h1 { font-size: 2.6rem; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .hero-art { order: -1; max-width: 340px; margin: 0 auto; }
  .steps, .feature-grid { grid-template-columns: 1fr 1fr; }
  .calc-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .blog-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .main-nav { position: fixed; inset: 62px 0 auto 0; background: var(--paper); border-bottom: 2.5px dashed var(--thread); flex-direction: column; align-items: stretch; padding: 16px 20px; transform: translateY(-120%); transition: transform 0.2s ease; z-index: 40; }
  .main-nav.open { transform: translateY(0); }
  .main-nav ul { flex-direction: column; gap: 4px; }
  .main-nav ul li a { display: block; padding: 10px 4px; }
  .nav-toggle { display: inline-flex; }
  .nav-cta.btn { display: none; }
  .main-nav .nav-cta.btn { display: inline-flex; margin-top: 10px; }
  .steps, .feature-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  h1 { font-size: 1.9rem; }
  .hero { padding: 32px 0 24px; }
  section { padding: 34px 0; }
}