/* The Award Hacker — editorial blog styles */
:root {
  --accent: #0e7a6b;          /* deep teal */
  --accent-dark: #0a5c51;
  --accent-soft: #e6f4f1;
  --ink: #1d2423;
  --muted: #5b6563;
  --line: #e3e8e7;
  --paper: #ffffff;
  --wash: #f6f9f8;
  --gold: #c98a1b;           /* small highlights only */
  --radius: 12px;
  --maxw: 72rem;
  --measure: 44rem;
}

* { box-sizing: border-box; }

/* ---------- accessibility ---------- */
.skip-link {
  position: absolute;
  left: 1rem; top: -4rem;
  background: var(--accent-dark);
  color: #fff;
  font-weight: 700;
  text-decoration: none;
  padding: 0.6rem 1.1rem;
  border-radius: 0 0 10px 10px;
  z-index: 100;
  transition: top .15s ease;
}
.skip-link:focus { top: 0; color: #fff; }
a:focus-visible, button:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 2px;
  border-radius: 4px;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.7;
  font-size: 1.0625rem;
}

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

/* ---------- header / nav ---------- */
.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--paper);
  position: sticky;
  top: 0;
  z-index: 20;
}
.nav-bar {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0.9rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--ink);
}
.brand-mark {
  width: 34px; height: 34px;
  border-radius: 9px;
  background: var(--accent);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.15rem;
}
.brand-name { font-weight: 800; font-size: 1.2rem; letter-spacing: -0.01em; }
.brand-name span { color: var(--accent); }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.45rem 0.65rem;
  font-size: 1.2rem;
  cursor: pointer;
  color: var(--ink);
}
.site-nav ul {
  list-style: none;
  margin: 0; padding: 0;
  display: flex;
  gap: 1.4rem;
}
.site-nav a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.98rem;
}
.site-nav a:hover { color: var(--accent); }

/* ---------- hero ---------- */
.hero {
  background: linear-gradient(135deg, #0b3f38 0%, var(--accent-dark) 60%, #123c45 100%);
  color: #fff;
  padding: 4.5rem 1.25rem 3.75rem;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute;
  right: -70px; top: -70px;
  width: 340px; height: 340px;
  border-radius: 50%;
  border: 60px solid rgba(255,255,255,0.06);
}
.hero-inner { max-width: var(--maxw); margin: 0 auto; position: relative; z-index: 1; }
.hero .kicker {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  font-weight: 700;
  color: #ffd98a;
  margin: 0 0 0.75rem;
}
.hero h1 { font-size: 2.6rem; line-height: 1.15; margin: 0 0 0.75rem; letter-spacing: -0.02em; max-width: 20ch; }
.hero h1 em { font-style: normal; color: #ffd98a; }
.hero .tagline { font-size: 1.25rem; font-weight: 600; margin: 0 0 0.75rem; color: #eef7f5; }
.hero .pitch { max-width: 38rem; color: #d7e8e4; margin: 0; }
.hero .pitch + .pitch { margin-top: 0.5rem; }
.hero .cta-row { margin-top: 1.5rem; display: flex; flex-wrap: wrap; gap: 0.8rem; }
.hero .btn { background: #ffd98a; color: #0b3f38; }
.hero .btn:hover { background: #fff; color: #0b3f38; }
.hero .btn-ghost {
  display: inline-block;
  border: 2px solid rgba(255,255,255,0.55);
  color: #fff;
  font-weight: 700;
  text-decoration: none;
  padding: 0.65rem 1.4rem;
  border-radius: 10px;
}
.hero .btn-ghost:hover { border-color: #fff; background: rgba(255,255,255,0.08); }

/* ---------- layout ---------- */
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 2.5rem 1.25rem; }
.section-title {
  font-size: 1.5rem;
  letter-spacing: -0.01em;
  margin: 0 0 0.25rem;
}
.section-sub { color: var(--muted); margin: 0 0 1.5rem; max-width: 44rem; }

/* ---------- cards & grids ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 1.25rem;
}
.card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.4rem;
  background: var(--paper);
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  transition: transform .12s ease, box-shadow .12s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: 0 10px 24px rgba(10,60,52,0.10); }
.card-art {
  margin: -1.4rem -1.4rem 0;
  border-radius: var(--radius) var(--radius) 0 0;
  height: 84px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.card-art svg { width: 38px; height: 38px; opacity: 0.95; }
.art-foundations { background: linear-gradient(120deg, #0e7a6b, #0a5c51 55%, #083f37); }
.art-earning     { background: linear-gradient(120deg, #c98a1b, #9d6712 55%, #7a4f0d); }
.art-redeeming   { background: linear-gradient(120deg, #14506b, #0e3b50 55%, #0a2a39); }
.card .pill {
  align-self: flex-start;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-dark);
  background: var(--accent-soft);
  border-radius: 999px;
  padding: 0.2rem 0.7rem;
}
.card h3 { margin: 0; font-size: 1.18rem; line-height: 1.35; }
.card h3 a { color: var(--ink); text-decoration: none; }
.card h3 a:hover { color: var(--accent); }
.card p { margin: 0; color: var(--muted); font-size: 0.98rem; }
.card .read-more { margin-top: auto; font-weight: 700; color: var(--accent); text-decoration: none; font-size: 0.95rem; }

.featured {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 2rem;
  margin-bottom: 3rem;
  background: var(--wash);
  position: relative;
  overflow: hidden;
}
.featured .badge {
  display: inline-block;
  font-size: 0.75rem; font-weight: 800;
  text-transform: uppercase; letter-spacing: 0.1em;
  color: #fff; background: var(--accent);
  border-radius: 999px; padding: 0.3rem 0.9rem;
  margin-bottom: 0.4rem;
}
.featured h2 { margin: 0.3rem 0 0.6rem; font-size: 1.9rem; line-height: 1.25; letter-spacing: -0.01em; }
.featured h2 a { color: var(--ink); text-decoration: none; }
.featured h2 a:hover { color: var(--accent); }
.featured p { color: var(--muted); margin: 0 0 1rem; max-width: 46rem; }
.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  text-decoration: none;
  padding: 0.75rem 1.5rem;
  border-radius: 10px;
}
.btn:hover { background: var(--accent-dark); }

/* ---------- about / newsletter ---------- */
.two-col { display: grid; grid-template-columns: 1.4fr 1fr; gap: 1.5rem; margin-top: 3rem; }
.about, .newsletter {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.75rem;
}
.about { background: var(--paper); }
.about h2 { margin-top: 0; font-size: 1.4rem; }
.about p { color: var(--muted); }
.newsletter { background: #0b3f38; color: #fff; border: none; }
.newsletter h2 { margin-top: 0; font-size: 1.35rem; }
.newsletter p { color: #d7e8e4; }

/* ---------- article pages ---------- */
.crumbs { max-width: var(--measure); margin: 0 auto; padding: 1.5rem 1.25rem 0; font-size: 0.92rem; }
.crumbs a { color: var(--accent); text-decoration: none; font-weight: 600; }
.prose { max-width: var(--measure); margin: 0 auto; padding: 1rem 1.25rem 3rem; }
.prose h1 { font-size: 2.2rem; line-height: 1.2; letter-spacing: -0.02em; margin: 0.4rem 0 0.75rem; }
.byline { color: var(--muted); font-size: 0.95rem; margin-bottom: 0.25rem; }
.byline strong { color: var(--ink); }
.pubdate { color: var(--muted); font-size: 0.9rem; margin: 0 0 1.25rem; }
.aff-notice {
  background: var(--accent-soft);
  border-left: 4px solid var(--accent);
  border-radius: 0 10px 10px 0;
  padding: 0.85rem 1.1rem;
  font-size: 0.92rem;
  color: var(--ink);
  margin: 0 0 1.75rem;
}
.aff-notice a { color: var(--accent-dark); font-weight: 700; }
.prose h2 { font-size: 1.55rem; margin: 2.4rem 0 0.8rem; letter-spacing: -0.01em; }
.prose h3 { font-size: 1.2rem; margin: 1.8rem 0 0.6rem; }
.prose p, .prose li { color: #2c3432; }
.prose ul, .prose ol { padding-left: 1.4rem; }
.prose li { margin-bottom: 0.45rem; }
.prose a { color: var(--accent-dark); }
.prose blockquote {
  border-left: 4px solid var(--gold);
  margin: 1.5rem 0; padding: 0.4rem 1.1rem;
  background: #fdf8ec; border-radius: 0 10px 10px 0;
  font-style: italic; color: #4a4436;
}
.prose table { width: 100%; border-collapse: collapse; margin: 1.4rem 0; font-size: 0.95rem; }
.prose th, .prose td { border: 1px solid var(--line); padding: 0.6rem 0.8rem; text-align: left; }
.prose th { background: var(--wash); }
.faq { background: var(--wash); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.5rem; margin-top: 2.5rem; }
.faq h2 { margin-top: 0; }
.faq p { margin-bottom: 1rem; }
.faq strong.q { display: block; color: var(--ink); margin-bottom: 0.2rem; }

.keep-reading { border-top: 2px solid var(--line); margin-top: 3rem; padding-top: 1.75rem; }
.keep-reading h2 { font-size: 1.4rem; }
.keep-reading ul { list-style: none; padding: 0; display: grid; gap: 0.7rem; }
.keep-reading a { color: var(--accent-dark); font-weight: 600; text-decoration: none; }
.keep-reading a:hover { text-decoration: underline; }

/* ---------- footer ---------- */
.site-footer { background: #0b2f2a; color: #cfe0dc; margin-top: 4rem; }
.footer-inner {
  max-width: var(--maxw); margin: 0 auto;
  padding: 2.5rem 1.25rem 1.5rem;
  display: grid; gap: 1.5rem;
  grid-template-columns: 1.5fr 1fr 1fr;
}
.footer-inner h3 { color: #fff; font-size: 1rem; margin: 0 0 0.6rem; }
.footer-inner p { font-size: 0.92rem; color: #a9bfba; margin: 0.3rem 0; }
.footer-inner ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.45rem; }
.footer-inner a { color: #d7e8e4; text-decoration: none; font-size: 0.93rem; }
.footer-inner a:hover { color: #fff; text-decoration: underline; }
.footer-legal { max-width: var(--maxw); margin: 0 auto; padding: 0 1.25rem 1.75rem; font-size: 0.85rem; color: #8aa29c; }
.footer-legal a { color: #a9bfba; }

/* ---------- responsive ---------- */
@media (max-width: 720px) {
  .hero h1 { font-size: 2rem; }
  .prose h1 { font-size: 1.75rem; }
  .nav-toggle { display: block; }
  .site-nav { display: none; width: 100%; }
  .site-nav.open { display: block; }
  .nav-bar { flex-wrap: wrap; }
  .site-nav ul { flex-direction: column; gap: 0; padding: 0.5rem 0; }
  .site-nav li { border-top: 1px solid var(--line); }
  .site-nav a { display: block; padding: 0.7rem 0; }
  .two-col { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .featured { padding: 1.4rem; }
}

/* ============================================================
   Site enhancements: search, TOC, progress, tables, FAQ, dark
   mode, back-to-top. All styles degrade gracefully without JS.
   ============================================================ */

/* ---------- screen-reader only ---------- */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

/* ---------- site search (injected into .nav-bar) ---------- */
.site-search { position: relative; margin-left: auto; }
.site-search input[type="search"] {
  width: 11rem;
  padding: 0.45rem 0.7rem 0.45rem 2rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.9rem;
  color: var(--ink);
  background: var(--wash) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235b6563' stroke-width='2.2' stroke-linecap='round'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cpath d='M20 20l-3.5-3.5'/%3E%3C/svg%3E") no-repeat 0.6rem center / 1rem 1rem;
}
.site-search input[type="search"]:focus { border-color: var(--accent); outline: none; }
.search-results {
  position: absolute;
  top: calc(100% + 0.5rem);
  right: 0;
  width: min(21rem, 80vw);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 14px 34px rgba(10, 40, 35, 0.18);
  z-index: 50;
  max-height: 70vh;
  overflow: auto;
  padding: 0.4rem;
}
.search-item {
  display: block;
  padding: 0.6rem 0.7rem;
  border-radius: 8px;
  text-decoration: none;
}
.search-item:hover, .search-item.active { background: var(--accent-soft); }
.search-item strong { display: block; color: var(--ink); font-size: 0.95rem; line-height: 1.35; }
.search-item span { display: block; color: var(--muted); font-size: 0.83rem; line-height: 1.45; margin-top: 0.2rem; }
.search-empty { color: var(--muted); font-size: 0.9rem; padding: 0.6rem 0.7rem; margin: 0; }

/* ---------- dark mode toggle ---------- */
.theme-toggle {
  background: none;
  border: 1px solid var(--line);
  border-radius: 8px;
  width: 2.4rem; height: 2.4rem;
  font-size: 1.1rem;
  line-height: 1;
  cursor: pointer;
  color: var(--ink);
  flex: 0 0 auto;
}
.theme-toggle:hover { border-color: var(--accent); }

/* ---------- article layout + TOC ---------- */
.article-layout {
  display: flex;
  gap: 2.5rem;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 1.25rem;
  align-items: flex-start;
}
.article-layout .prose { margin: 0; padding-left: 0; padding-right: 0; flex: 1 1 auto; min-width: 0; }
.toc {
  flex: 0 0 240px;
  width: 240px;
  position: sticky;
  top: 5.5rem;
  max-height: calc(100vh - 7rem);
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--wash);
  padding: 1.1rem 1.2rem;
  margin-top: 1rem;
  font-size: 0.88rem;
}
.toc-title { font-weight: 800; margin: 0 0 0.5rem; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); }
.toc ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.15rem; }
.toc-link { display: block; color: var(--muted); text-decoration: none; padding: 0.25rem 0.5rem; border-left: 2px solid transparent; border-radius: 0 6px 6px 0; line-height: 1.4; }
.toc-link:hover { color: var(--accent); }
.toc-link.active { color: var(--accent-dark); border-left-color: var(--accent); background: var(--accent-soft); font-weight: 700; }

/* ---------- reading progress bar ---------- */
.read-progress {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 0;
  background: var(--accent);
  z-index: 60;
}

/* ---------- sortable tables ---------- */
.prose th.sortable { cursor: pointer; user-select: none; white-space: nowrap; }
.prose th.sortable:hover { background: var(--accent-soft); }
.prose th.sortable::after { content: " \21C5"; color: var(--muted); font-size: 0.85em; }
.prose th.sorted-asc::after { content: " \25B2"; color: var(--accent); }
.prose th.sorted-desc::after { content: " \25BC"; color: var(--accent); }

/* ---------- FAQ accordions ---------- */
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item:last-child { border-bottom: none; }
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  background: none;
  border: none;
  padding: 0.9rem 0;
  font: inherit;
  font-weight: 700;
  color: var(--ink);
  text-align: left;
  cursor: pointer;
}
.faq-q:hover { color: var(--accent); }
.faq-icon { font-size: 1.3rem; color: var(--accent); flex: 0 0 auto; line-height: 1; }
.faq-a p { margin: 0 0 1rem; }

/* ---------- back-to-top ---------- */
.back-to-top {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  width: 2.9rem; height: 2.9rem;
  border-radius: 50%;
  border: none;
  background: var(--accent);
  color: #fff;
  font-size: 1.3rem;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 8px 22px rgba(10, 60, 52, 0.3);
  z-index: 50;
}
.back-to-top:hover { background: var(--accent-dark); }

/* ---------- dark theme ---------- */
[data-theme="dark"] {
  --accent: #2aa892;
  --accent-dark: #8fd8ca;
  --accent-soft: #10312c;
  --ink: #e9f0ee;
  --muted: #a7bcb8;
  --line: #263935;
  --paper: #0f1715;
  --wash: #152019;
  --gold: #e0a83e;
}
[data-theme="dark"] .prose p,
[data-theme="dark"] .prose li { color: var(--ink); }
[data-theme="dark"] .prose blockquote { background: var(--wash); color: var(--muted); }
[data-theme="dark"] .btn { color: #06231f; }
[data-theme="dark"] .brand-mark { color: #06231f; }
[data-theme="dark"] .hero .btn { color: #0b3f38; }

/* ---------- responsive for enhancements ---------- */
@media (max-width: 1000px) {
  .article-layout { display: block; padding: 0; }
  .article-layout .prose { margin: 0 auto; padding: 1rem 1.25rem 3rem; }
  .toc {
    position: static;
    width: auto;
    max-height: none;
    margin: 1rem 1.25rem 0;
  }
}
@media (max-width: 720px) {
  .site-search input[type="search"] { width: 7.5rem; }
  .site-search input[type="search"]:focus { width: 10rem; }
}