/* ============================================================
   Backyard Hero — Shared Styles
   Mobile-first. Light, accessible, fun, but still professional.
   ============================================================ */

:root {
  /* Brand palette */
  --color-ink: #0d1b2a;          /* deep navy — primary text / dark surfaces */
  --color-ink-soft: #1e293b;     /* slightly lighter dark */
  --color-text: #1f2937;         /* body text */
  --color-muted: #5b6b80;        /* secondary text */
  --color-border: #e3e8ef;       /* hairlines */
  --color-bg: #f7f9fc;           /* page background */
  --color-surface: #ffffff;      /* cards */
  --color-surface-2: #f1f5fa;    /* sunken surface */

  /* Accents — firework-inspired */
  --color-spark: #f59e0b;        /* warm amber gold */
  --color-burst: #e11d48;        /* firework red/pink */
  --color-sky: #2563eb;          /* clear-night sky blue */
  --color-success: #16a34a;
  --color-warning: #d97706;
  --color-danger: #dc2626;

  /* Effects */
  --shadow-sm: 0 1px 2px rgba(13, 27, 42, 0.06), 0 1px 3px rgba(13, 27, 42, 0.05);
  --shadow-md: 0 4px 12px rgba(13, 27, 42, 0.08), 0 2px 4px rgba(13, 27, 42, 0.05);
  --shadow-lg: 0 12px 32px rgba(13, 27, 42, 0.12), 0 4px 8px rgba(13, 27, 42, 0.06);

  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --nav-height: 60px;
  --container-max: 1180px;

  --transition: 200ms ease;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: 'Inter', 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

h1, h2, h3, h4 { color: var(--color-ink); line-height: 1.25; margin: 0 0 0.5em; font-weight: 700; letter-spacing: -0.01em; }
h1 { font-size: clamp(2rem, 5vw + 1rem, 3.25rem); }
h2 { font-size: clamp(1.5rem, 2.5vw + 0.5rem, 2.25rem); }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.05rem; }

p { margin: 0 0 1em; }

a {
  color: var(--color-sky);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition);
}
a:hover { color: var(--color-burst); text-decoration: underline; }
a:focus-visible { outline: 2px solid var(--color-sky); outline-offset: 2px; border-radius: 3px; }

button { font-family: inherit; cursor: pointer; }
button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--color-sky);
  outline-offset: 2px;
}

/* Skip link for accessibility */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-ink);
  color: #fff;
  padding: 0.5em 1em;
  z-index: 1000;
  border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus { left: 0; }

/* ============================================================
   Top Navigation
   ============================================================ */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--nav-height);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
}
.topbar-inner {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.menu-toggle {
  appearance: none;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-ink);
  transition: background var(--transition), border-color var(--transition);
}
.menu-toggle:hover { background: var(--color-surface-2); border-color: #c8d2df; }
.menu-toggle svg { width: 22px; height: 22px; }

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  color: var(--color-ink);
  text-decoration: none;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}
.brand:hover { text-decoration: none; color: var(--color-ink); }
.brand-spark {
  width: 11px;
  height: 11px;
  display: inline-block;
  background: var(--color-spark);
  border-radius: 1px;
}

.topbar-spacer { flex: 1; }

.topbar-cta {
  display: none;
  padding: 0.5rem 0.9rem;
  font-size: 0.9rem;
  background: var(--color-ink);
  color: #fff;
  border-radius: var(--radius-sm);
  font-weight: 600;
}
.topbar-cta:hover { background: var(--color-burst); color: #fff; text-decoration: none; }
@media (min-width: 720px) { .topbar-cta { display: inline-flex; } }

/* Drawer */
.nav-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(13, 27, 42, 0.45);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
  z-index: 60;
}
.nav-backdrop.open { opacity: 1; pointer-events: auto; }

.nav-drawer {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: min(86vw, 320px);
  background: var(--color-surface);
  z-index: 70;
  transform: translateX(-100%);
  transition: transform 240ms ease;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
}
.nav-drawer.open { transform: translateX(0); }

.nav-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--color-border);
}
.nav-close {
  appearance: none;
  background: transparent;
  border: 0;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  color: var(--color-ink);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.nav-close:hover { background: var(--color-surface-2); }

.nav-list {
  list-style: none;
  margin: 0;
  padding: 0.5rem 0;
  overflow-y: auto;
  flex: 1;
}
.nav-list li { margin: 0; }
.nav-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1.25rem;
  color: var(--color-ink);
  font-weight: 500;
  border-left: 3px solid transparent;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}
.nav-list a:hover {
  background: var(--color-surface-2);
  text-decoration: none;
  border-left-color: var(--color-spark);
}
.nav-list a[aria-current="page"] {
  background: var(--color-surface-2);
  border-left-color: var(--color-burst);
  color: var(--color-burst);
}
.nav-ext-icon { opacity: 0.55; }

.nav-footer {
  border-top: 1px solid var(--color-border);
  padding: 0.9rem 1.25rem;
  font-size: 0.8rem;
  color: var(--color-muted);
}

/* ============================================================
   Layout helpers
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1rem;
}

main { display: block; }

section { padding: 2.5rem 0; }
@media (min-width: 720px) { section { padding: 3.5rem 0; } }

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-burst);
  margin-bottom: 0.75rem;
}

.lede {
  font-size: 1.1rem;
  color: var(--color-muted);
  max-width: 60ch;
}

.section-header {
  margin-bottom: 1.5rem;
}
.section-header.center {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}
.section-header.center .lede { margin-left: auto; margin-right: auto; }

/* ============================================================
   Hero
   ============================================================ */
.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(245, 158, 11, 0.15), transparent 60%),
    radial-gradient(900px 600px at 100% 0%, rgba(225, 29, 72, 0.14), transparent 60%),
    linear-gradient(180deg, #0d1b2a 0%, #122036 60%, #0d1b2a 100%);
  color: #fff;
  padding: 3rem 0 3.5rem;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(2px 2px at 20% 30%, rgba(255,255,255,0.6) 50%, transparent 51%),
    radial-gradient(1.5px 1.5px at 80% 40%, rgba(255,255,255,0.45) 50%, transparent 51%),
    radial-gradient(2px 2px at 60% 80%, rgba(255,255,255,0.4) 50%, transparent 51%),
    radial-gradient(1px 1px at 35% 75%, rgba(255,255,255,0.5) 50%, transparent 51%),
    radial-gradient(1px 1px at 70% 15%, rgba(255,255,255,0.45) 50%, transparent 51%);
  background-size: 100% 100%;
  pointer-events: none;
  opacity: 0.7;
}
.hero > .container { position: relative; }
.hero h1 {
  color: #fff;
  text-shadow: 0 2px 24px rgba(0,0,0,0.35);
  margin-bottom: 0.4em;
}
.hero h1 .accent {
  background: linear-gradient(90deg, #fcd34d 0%, var(--color-spark) 50%, var(--color-burst) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero p.tagline {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.85);
  max-width: 56ch;
  margin: 0 0 1.5em;
}
.hero .mission {
  display: inline-block;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.16);
  padding: 0.85rem 1.1rem;
  border-radius: var(--radius);
  color: rgba(255,255,255,0.9);
  font-size: 0.98rem;
  max-width: 60ch;
}
.hero-image {
  margin-top: 2rem;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255,255,255,0.1);
}
.hero-cta-row {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 1.25rem;
}

.hero.compact { padding: 2.25rem 0 2.5rem; }
.hero.compact h1 { font-size: clamp(1.75rem, 3.5vw + 1rem, 2.5rem); }

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.15rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  transition: transform var(--transition), background var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition);
  text-decoration: none;
  line-height: 1.2;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: var(--color-burst);
  color: #fff;
  box-shadow: 0 6px 18px rgba(225, 29, 72, 0.28);
}
.btn-primary:hover { background: #be123c; color: #fff; }

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-ink);
  border-color: var(--color-border);
}
.btn-secondary:hover { background: var(--color-surface-2); border-color: #c8d2df; color: var(--color-ink); }

.btn-ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.35);
}
.btn-ghost:hover { background: rgba(255,255,255,0.1); color: #fff; }

.btn-spark {
  background: linear-gradient(135deg, var(--color-spark), var(--color-burst));
  color: #fff;
  box-shadow: 0 8px 22px rgba(245, 158, 11, 0.35);
}
.btn-spark:hover { color: #fff; filter: brightness(1.05); }

/* ============================================================
   Cards
   ============================================================ */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover { box-shadow: var(--shadow-md); }
.card h3 { margin-top: 0; }
.card .card-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(245,158,11,0.18), rgba(225,29,72,0.18));
  color: var(--color-burst);
  margin-bottom: 0.8rem;
}

.grid {
  display: grid;
  gap: 1.25rem;
}
.grid.cols-2 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.grid.cols-3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
@media (min-width: 900px) {
  .grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
}

/* ============================================================
   Feature blocks with images
   ============================================================ */
.feature-block {
  display: grid;
  gap: 1.5rem;
  align-items: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}
@media (min-width: 800px) {
  .feature-block { grid-template-columns: 1.1fr 1fr; gap: 2rem; padding: 2rem; }
  .feature-block.flip { grid-template-columns: 1fr 1.1fr; }
  .feature-block.flip .feature-media { order: -1; }
}
.feature-block + .feature-block { margin-top: 1.25rem; }
.feature-media {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  aspect-ratio: 16 / 10;
  display: flex;
  align-items: center;
  justify-content: center;
}
.feature-media img { width: 100%; height: 100%; object-fit: cover; }
.feature-body h3 { font-size: 1.4rem; }
.feature-body ul { padding-left: 1.15em; margin: 0.5em 0 0; }
.feature-body li { margin-bottom: 0.4em; }

/* Placeholder for images that haven't been added yet */
.placeholder {
  background:
    linear-gradient(135deg, rgba(245,158,11,0.08), rgba(225,29,72,0.08)),
    repeating-linear-gradient(45deg, transparent 0 12px, rgba(13,27,42,0.04) 12px 13px);
  color: var(--color-muted);
  font-size: 0.85rem;
  text-align: center;
  padding: 1rem;
  border: 1px dashed #c8d2df;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  border-radius: var(--radius);
}
.placeholder strong { color: var(--color-ink); display: block; margin-bottom: 0.15rem; }
.placeholder code {
  font-size: 0.75rem;
  background: rgba(13,27,42,0.06);
  padding: 0.15em 0.4em;
  border-radius: 4px;
  word-break: break-all;
}
.placeholder[hidden] { display: none; }

/* Video placeholder */
.video-placeholder {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, #0d1b2a 0%, #1e293b 100%);
  color: rgba(255,255,255,0.85);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 1rem;
  border: 1px solid var(--color-border);
  overflow: hidden;
}
.video-placeholder::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 50% 50%, rgba(245,158,11,0.18), transparent 60%);
  pointer-events: none;
}
.video-placeholder .play-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(255,255,255,0.12);
  border: 2px solid rgba(255,255,255,0.4);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.75rem;
}
.video-placeholder .play-icon svg { width: 26px; height: 26px; }
.video-placeholder .vp-title { font-weight: 600; color: #fff; }
.video-placeholder .vp-path { font-size: 0.78rem; opacity: 0.75; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; margin-top: 0.25rem; }

/* ============================================================
   Sub-features (sub-cards within a feature block)
   ============================================================ */
.sub-features {
  list-style: none;
  margin: 0.75rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}
.sub-features li {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.7rem 0.9rem;
  font-size: 0.95rem;
}
.sub-features li strong { color: var(--color-ink); }

/* ============================================================
   Section dividers / tag
   ============================================================ */
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--color-ink);
  background: linear-gradient(90deg, rgba(245,158,11,0.18), rgba(225,29,72,0.18));
  padding: 0.4rem 0.85rem;
  border-radius: 99px;
  margin-bottom: 0.75rem;
}

/* ============================================================
   Forms
   ============================================================ */
.signup-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
}
@media (min-width: 720px) { .signup-card { padding: 2rem; } }

.form-row {
  display: grid;
  gap: 0.85rem;
  grid-template-columns: 1fr;
}
@media (min-width: 720px) {
  .form-row.split { grid-template-columns: 1fr 1fr; }
}
.field { display: flex; flex-direction: column; gap: 0.35rem; }
.field label { font-weight: 600; font-size: 0.9rem; color: var(--color-ink); }
.field input, .field textarea, .field select {
  font: inherit;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.field input:focus, .field textarea:focus, .field select:focus {
  border-color: var(--color-sky);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
  outline: none;
}
.field textarea { resize: vertical; min-height: 100px; }

.form-actions {
  margin-top: 1rem;
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  align-items: center;
}
.form-note { font-size: 0.85rem; color: var(--color-muted); margin-top: 0.5em; }

/* ============================================================
   Callouts
   ============================================================ */
.callout {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-spark);
  padding: 1rem 1.15rem;
  border-radius: var(--radius);
  color: var(--color-text);
}
.callout.info { border-left-color: var(--color-sky); }
.callout.warn { border-left-color: var(--color-warning); background: #fff7ed; }
.callout.danger { border-left-color: var(--color-danger); background: #fef2f2; }
.callout h4 { margin: 0 0 0.4em; }
.callout p:last-child { margin-bottom: 0; }

/* ============================================================
   Lists
   ============================================================ */
.check-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.4em; }
.check-list li { position: relative; padding-left: 1.6em; }
.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--color-success);
  font-weight: 700;
}

/* ============================================================
   Footer
   ============================================================ */
footer.site-footer {
  background: var(--color-ink);
  color: rgba(255,255,255,0.78);
  padding: 2.5rem 0 1.5rem;
  margin-top: 3rem;
}
footer.site-footer .footer-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 1fr;
}
@media (min-width: 720px) {
  footer.site-footer .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; }
}
footer.site-footer h4 { color: #fff; font-size: 0.95rem; margin-bottom: 0.5em; }
footer.site-footer a { color: rgba(255,255,255,0.85); }
footer.site-footer a:hover { color: var(--color-spark); }
footer.site-footer .footer-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.35rem; }
footer.site-footer .footer-donate {
  margin-top: 2rem;
  padding: 1.1rem 0;
  border-top: 1px solid rgba(255,255,255,0.1);
  border-bottom: 1px solid rgba(255,255,255,0.1);
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem 1.25rem;
  align-items: center;
  justify-content: space-between;
}
footer.site-footer .footer-donate p {
  margin: 0;
  color: rgba(255,255,255,0.68);
  font-size: 0.92rem;
}
footer.site-footer .footer-donate a {
  display: inline-flex;
  align-items: center;
  padding: 0.65rem 0.95rem;
  border-radius: var(--radius-sm);
  background: var(--color-spark);
  color: var(--color-ink);
  font-weight: 700;
  text-decoration: none;
}
footer.site-footer .footer-donate a:hover {
  background: #fcd34d;
  color: var(--color-ink);
  text-decoration: none;
}
footer.site-footer .footer-bottom {
  margin-top: 1rem;
  padding-top: 1rem;
  font-size: 0.85rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem;
  color: rgba(255,255,255,0.6);
}

/* ============================================================
   Doc/Disclaimer prose
   ============================================================ */
.prose {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}
@media (min-width: 720px) { .prose { padding: 2.25rem; } }
.prose h2 { margin-top: 1.5em; }
.prose h2:first-child { margin-top: 0; }
.prose h3 { margin-top: 1.25em; }
.prose ul, .prose ol { padding-left: 1.25em; }
.prose li { margin-bottom: 0.4em; }

.donate-prose p {
  font-size: 1.02rem;
  line-height: 1.72;
}
.donate-card {
  margin-top: 2rem;
  display: grid;
  gap: 1.25rem;
  align-items: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
}
@media (min-width: 760px) {
  .donate-card {
    grid-template-columns: minmax(180px, 0.42fr) 1fr;
    padding: 1.5rem;
  }
}
.donate-card img {
  width: 100%;
  max-width: 320px;
  margin: 0 auto;
}
.donate-card h2 {
  margin-top: 0;
}
.donate-card p {
  color: var(--color-muted);
}
.donate-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1rem;
}

/* ============================================================
   Utility
   ============================================================ */
.text-center { text-align: center; }
.muted { color: var(--color-muted); }
.hidden { display: none !important; }
.no-bullets { list-style: none; padding: 0; margin: 0; }

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

/* ============================================================
   Home-page editorial layout
   Used only on index.html. Other pages continue to use .hero,
   .card, .grid, etc. from the patterns above.
   ============================================================ */

.masthead {
  background: #0c1422;
  color: #f4f4f0;
  padding: 3.25rem 0 0;
}
.masthead-tag {
  display: inline-block;
  font-family: ui-monospace, 'SF Mono', 'JetBrains Mono', Menlo, Consolas, monospace;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: rgba(252, 211, 77, 0.9);
  text-transform: uppercase;
}
.masthead h1 {
  color: #fff;
  font-size: clamp(2.1rem, 4.5vw + 0.5rem, 3.2rem);
  line-height: 1.04;
  letter-spacing: -0.022em;
  font-weight: 700;
  max-width: 22ch;
  margin: 0.7em 0 0.55em;
  text-shadow: none;
}
.masthead .lede-dark {
  color: rgba(244, 244, 240, 0.72);
  font-size: 1.05rem;
  max-width: 60ch;
  line-height: 1.6;
  margin: 0 0 1.5em;
}
.masthead-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem 1.75rem;
  align-items: baseline;
  font-size: 0.95rem;
}
.masthead-actions a {
  color: #fcd34d;
  border-bottom: 1px solid rgba(252, 211, 77, 0.35);
  padding-bottom: 1px;
  text-decoration: none;
  font-weight: 500;
}
.masthead-actions a:hover {
  color: #fff;
  border-bottom-color: #fff;
  text-decoration: none;
}
.masthead-stage {
  margin: 2.5rem 0 0;
  background: rgba(255, 255, 255, 0.04);
  padding: 1.25rem;
  display: flex;
  justify-content: center;
}
.masthead-stage .feature-media {
  border: 0;
  border-radius: 0;
  aspect-ratio: auto;
  background: transparent;
  display: block;
  max-width: 100%;
}
.masthead-stage .feature-media img {
  display: block;
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 560px;
  object-fit: contain;
  margin: 0 auto;
}
.masthead-stage .feature-media .placeholder {
  aspect-ratio: 16 / 9;
  width: 100%;
  height: auto;
}
.masthead-status {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.75rem;
  padding: 0.95rem 0 1.5rem;
  border-top: 1px solid rgba(244, 244, 240, 0.12);
  font-family: ui-monospace, 'SF Mono', 'JetBrains Mono', Menlo, Consolas, monospace;
  font-size: 0.78rem;
  color: rgba(244, 244, 240, 0.7);
}
.masthead-status .dot {
  display: inline-block;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: #fcd34d;
  margin-right: 0.55rem;
  vertical-align: 1.5px;
}

.editorial { padding: 3.25rem 0; }
@media (min-width: 720px) { .editorial { padding: 4.5rem 0; } }
.editorial--white {
  background: #fff;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.section-head {
  display: flex;
  align-items: baseline;
  gap: 1.25rem;
  padding-bottom: 0.85rem;
  margin: 0 0 2rem;
  border-bottom: 1px solid var(--color-border);
}
.section-head .num {
  font-family: ui-monospace, 'SF Mono', 'JetBrains Mono', Menlo, Consolas, monospace;
  font-size: 0.78rem;
  color: var(--color-muted);
  letter-spacing: 0.08em;
  flex-shrink: 0;
}
.section-head h2 {
  margin: 0;
  font-weight: 700;
  font-size: clamp(1.45rem, 1.4vw + 1rem, 1.9rem);
  letter-spacing: -0.015em;
}

.split {
  display: grid;
  gap: 2rem;
  grid-template-columns: 1fr;
}
@media (min-width: 880px) {
  .split { grid-template-columns: 1.45fr 1fr; gap: 3.25rem; }
  .split.flip { grid-template-columns: 1fr 1.45fr; }
}
.split > div > p { margin: 0 0 1em; }
.split > div > p:last-child { margin-bottom: 0; }

.spec-list {
  margin: 0;
  font-family: ui-monospace, 'SF Mono', 'JetBrains Mono', Menlo, Consolas, monospace;
  font-size: 0.86rem;
}
.spec-list > div {
  display: grid;
  grid-template-columns: 5.75rem 1fr;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--color-border);
  align-items: baseline;
}
.spec-list > div:first-child { border-top: 1px solid var(--color-border); }
.spec-list dt {
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.72rem;
}
.spec-list dd { margin: 0; color: var(--color-text); line-height: 1.4; }

.kit {
  display: grid;
  gap: 1.75rem;
}
@media (min-width: 720px) {
  .kit {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.75rem 2rem;
  }
}
.kit figure { margin: 0; display: flex; flex-direction: column; }
.kit .kit-frame {
  position: relative;
  background: #eef1f5;
  overflow: hidden;
  aspect-ratio: 4 / 3;
}
.kit .kit-frame img,
.kit .kit-frame .placeholder { width: 100%; height: 100%; }
.kit .kit-frame img { object-fit: cover; display: block; }
.kit figcaption {
  display: flex;
  gap: 0.75rem;
  align-items: baseline;
  padding-top: 0.7rem;
  font-size: 0.95rem;
  border-top: 1px solid var(--color-border);
  margin-top: 0.7rem;
}
.kit .name { font-weight: 600; color: var(--color-ink); }
.kit .cost {
  margin-left: auto;
  font-family: ui-monospace, 'SF Mono', 'JetBrains Mono', Menlo, Consolas, monospace;
  font-size: 0.8rem;
  color: var(--color-muted);
}
.kit .blurb {
  font-size: 0.92rem;
  color: var(--color-muted);
  margin: 0.5rem 0 0;
  line-height: 1.55;
}

.inline-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1.75rem;
  align-items: baseline;
}
.inline-actions a {
  color: var(--color-ink);
  border-bottom: 1px solid currentColor;
  padding-bottom: 1px;
  text-decoration: none;
  font-weight: 500;
}
.inline-actions a:hover {
  color: var(--color-burst);
  border-bottom-color: var(--color-burst);
  text-decoration: none;
}

.aside-image {
  background: #eef1f5;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  position: relative;
}
.aside-image img,
.aside-image .placeholder { width: 100%; height: 100%; }
.aside-image img { object-fit: cover; display: block; }

/* Compact masthead for non-home pages */
.masthead--compact { padding: 2.75rem 0 2.5rem; }
.masthead--compact h1 {
  font-size: clamp(1.85rem, 3vw + 0.5rem, 2.6rem);
  max-width: 26ch;
  margin: 0.55em 0 0.45em;
}
.masthead--compact .lede-dark { font-size: 1rem; max-width: 64ch; margin-bottom: 0; }

/* On-this-page links inside the masthead */
.page-toc {
  margin: 1.5rem 0 0;
  padding: 0.85rem 0 0;
  border-top: 1px solid rgba(244, 244, 240, 0.12);
  font-family: ui-monospace, 'SF Mono', 'JetBrains Mono', Menlo, Consolas, monospace;
  font-size: 0.78rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.5rem;
  align-items: baseline;
}
.page-toc .toc-label {
  color: rgba(244, 244, 240, 0.45);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.page-toc a {
  color: #fcd34d;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 1px;
}
.page-toc a:hover { color: #fff; border-bottom-color: currentColor; }

/* Multi-image figure grid */
.gallery {
  display: grid;
  gap: 1rem 1.25rem;
  grid-template-columns: 1fr;
  margin: 0 0 1.75rem;
}
@media (min-width: 700px) {
  .gallery.cols-2,
  .gallery.cols-4 { grid-template-columns: 1fr 1fr; }
  .gallery.cols-3 { grid-template-columns: 1fr 1fr 1fr; }
}
@media (min-width: 940px) {
  .gallery.cols-4 { grid-template-columns: repeat(4, 1fr); }
}
.gallery figure { margin: 0; }
.gallery .frame {
  background: #eef1f5;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  position: relative;
}
.gallery .frame img,
.gallery .frame .placeholder { width: 100%; height: 100%; }
.gallery .frame img { object-fit: cover; display: block; }
.gallery figcaption {
  font-family: ui-monospace, 'SF Mono', 'JetBrains Mono', Menlo, Consolas, monospace;
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--color-muted);
  padding-top: 0.55rem;
  text-transform: uppercase;
}

/* Section-lead: a single, centred, constrained photo at the top of a
   section (e.g. the receiver+cue shot leading "Hardware notes"). */
.section-lead {
  margin: 0 auto 2rem;
  max-width: 560px;
}
.section-lead .frame {
  background: #eef1f5;
  overflow: hidden;
  aspect-ratio: auto;
  position: relative;
}
.section-lead .frame img {
  width: 100%;
  height: auto;
  display: block;
}
.section-lead .frame .placeholder {
  aspect-ratio: 4 / 3;
  width: 100%;
  height: auto;
}
.section-lead figcaption {
  font-family: ui-monospace, 'SF Mono', 'JetBrains Mono', Menlo, Consolas, monospace;
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--color-muted);
  padding-top: 0.55rem;
  text-transform: uppercase;
  text-align: center;
}

/* Sub-section head (smaller than .section-head, used inside a section) */
.sub-head {
  display: flex;
  align-items: baseline;
  gap: 0.9rem;
  margin: 2.5rem 0 1.25rem;
}
.sub-head:first-child { margin-top: 0; }
.sub-head .num {
  font-family: ui-monospace, 'SF Mono', 'JetBrains Mono', Menlo, Consolas, monospace;
  font-size: 0.78rem;
  color: var(--color-muted);
  letter-spacing: 0.08em;
  flex-shrink: 0;
}
.sub-head h3 {
  margin: 0;
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
}

/* 2-column label / description rows (replaces icon-card feature grids) */
.feature-rows {
  display: grid;
  gap: 0;
  margin: 0;
}
.feature-rows > div {
  display: grid;
  gap: 0.4rem 1.5rem;
  grid-template-columns: 1fr;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--color-border);
}
.feature-rows > div:first-child { border-top: 1px solid var(--color-border); }
@media (min-width: 720px) {
  .feature-rows > div {
    grid-template-columns: 13rem 1fr;
    align-items: baseline;
  }
}
.feature-rows dt {
  font-weight: 600;
  color: var(--color-ink);
  font-size: 0.95rem;
}
.feature-rows dd {
  margin: 0;
  color: var(--color-text);
  font-size: 0.95rem;
  line-height: 1.55;
}

/* Walkthroughs / video appendix list */
.walkthroughs {
  list-style: none;
  margin: 0;
  padding: 0;
}
.walkthroughs > li {
  display: grid;
  gap: 0.25rem 1rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--color-border);
  grid-template-columns: 1fr;
}
.walkthroughs > li:first-child { border-top: 1px solid var(--color-border); }
@media (min-width: 720px) {
  .walkthroughs > li {
    grid-template-columns: 18rem 1fr minmax(8.5rem, 10rem);
    align-items: center;
  }
}
.walkthroughs .label { font-weight: 600; color: var(--color-ink); }
.walkthroughs .descr { color: var(--color-muted); font-size: 0.92rem; line-height: 1.5; }
.walkthroughs .status {
  font-family: ui-monospace, 'SF Mono', 'JetBrains Mono', Menlo, Consolas, monospace;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--color-muted);
  text-transform: uppercase;
}
.walkthroughs .status code { background: transparent; padding: 0; font-size: inherit; }
.walkthrough-video {
  display: grid;
  gap: 0.45rem;
  color: var(--color-ink);
  text-decoration: none;
  font-size: 0.78rem;
  font-weight: 600;
  line-height: 1.2;
}
.walkthrough-video:hover {
  color: var(--color-burst);
  text-decoration: none;
}
.walkthrough-thumb {
  position: relative;
  display: block;
  aspect-ratio: 16 / 9;
  width: min(100%, 10rem);
  overflow: hidden;
  background: #0d1b2a;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}
.walkthrough-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition), opacity var(--transition);
}
.walkthrough-video:hover .walkthrough-thumb img {
  transform: scale(1.03);
  opacity: 0.88;
}
.walkthrough-thumb .play-badge {
  position: absolute;
  inset: 50% auto auto 50%;
  width: 2.25rem;
  height: 2.25rem;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(225, 29, 72, 0.92);
  color: #fff;
  box-shadow: 0 6px 18px rgba(13, 27, 42, 0.28);
}
.walkthrough-video .watch-label {
  font-family: ui-monospace, 'SF Mono', 'JetBrains Mono', Menlo, Consolas, monospace;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* Stripped-down editorial form (replaces the SaaS signup card) */
.form-editorial { margin: 0; }
.form-editorial .field {
  border-bottom: 1px solid var(--color-border);
  padding: 0.6rem 0 0.85rem;
  gap: 0.25rem;
}
.form-editorial .field:first-child { border-top: 1px solid var(--color-border); }
.form-editorial label {
  font-family: ui-monospace, 'SF Mono', 'JetBrains Mono', Menlo, Consolas, monospace;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
  font-weight: 500;
}
.form-editorial input,
.form-editorial textarea {
  border: 0;
  padding: 0.35rem 0;
  background: transparent;
  font-size: 1.02rem;
  color: var(--color-ink);
  font-family: inherit;
}
.form-editorial input:focus,
.form-editorial textarea:focus {
  outline: 0;
  box-shadow: none;
  background: transparent;
}
.form-editorial textarea { min-height: 80px; }
.form-editorial .form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem 2rem;
  align-items: baseline;
  margin-top: 1.5rem;
}
.form-editorial button[type="submit"] {
  appearance: none;
  background: var(--color-ink);
  color: #fff;
  border: 0;
  padding: 0.7rem 1.1rem;
  font-weight: 600;
  font-size: 0.95rem;
  font-family: inherit;
  border-radius: 2px;
  cursor: pointer;
  transition: background var(--transition);
}
.form-editorial button[type="submit"]:hover { background: var(--color-burst); }
.form-editorial .form-note {
  font-size: 0.85rem;
  color: var(--color-muted);
  margin: 0.4rem 0 0;
}

/* ============================================================
   Setup configurations (home-page "Two ways to run it")
   Side-by-side cards with image, header, pros/cons, and cost.
   ============================================================ */
.configs {
  display: grid;
  gap: 2.5rem;
  grid-template-columns: 1fr;
}
@media (min-width: 880px) {
  .configs {
    grid-template-columns: 1fr 1fr;
    gap: 2.75rem;
  }
}

.config { margin: 0; display: flex; flex-direction: column; }

.config-frame {
  background: #eef1f5;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  position: relative;
}
.config-frame img,
.config-frame .placeholder { width: 100%; height: 100%; }
.config-frame img { object-fit: cover; display: block; }

.config-head {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  padding-top: 0.85rem;
  margin-top: 0.85rem;
  border-top: 1px solid var(--color-border);
}
.config-head h3 {
  margin: 0;
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: -0.01em;
}
.config-head .cost {
  margin-left: auto;
  font-family: ui-monospace, 'SF Mono', 'JetBrains Mono', Menlo, Consolas, monospace;
  font-size: 0.8rem;
  color: var(--color-muted);
  white-space: nowrap;
}

.config-blurb {
  margin: 0.85rem 0 1.4rem;
  color: var(--color-text);
  line-height: 1.55;
}

.config-meta {
  display: grid;
  gap: 1.1rem 1.5rem;
  grid-template-columns: 1fr;
  margin-bottom: 1.25rem;
}
@media (min-width: 480px) {
  .config-meta { grid-template-columns: 1fr 1fr; }
}
.config-meta h4 {
  font-family: ui-monospace, 'SF Mono', 'JetBrains Mono', Menlo, Consolas, monospace;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
  font-weight: 500;
  margin: 0 0 0.55rem;
}
.config-meta ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.config-meta li {
  position: relative;
  padding-left: 1.15em;
  margin-bottom: 0.4em;
  font-size: 0.92rem;
  line-height: 1.5;
}
.config-meta li::before {
  position: absolute;
  left: 0;
  top: -0.02em;
  font-weight: 700;
  font-size: 1em;
}
.config-meta .pros li::before {
  content: "+";
  color: var(--color-success);
}
.config-meta .cons li::before {
  content: "−";
  color: var(--color-burst);
}

.config-cost {
  margin: 0;
  font-family: ui-monospace, 'SF Mono', 'JetBrains Mono', Menlo, Consolas, monospace;
  font-size: 0.82rem;
  margin-top: auto;
}
.config-cost > div {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.5rem 1rem;
  padding: 0.45rem 0;
  border-bottom: 1px solid var(--color-border);
  align-items: baseline;
}
.config-cost > div:first-child { border-top: 1px solid var(--color-border); }
.config-cost dt {
  color: var(--color-muted);
}
.config-cost dd {
  margin: 0;
  color: var(--color-text);
  text-align: right;
  white-space: nowrap;
}
.config-cost > div.total {
  border-bottom: 0;
  padding-top: 0.6rem;
}
.config-cost > div.total dt,
.config-cost > div.total dd {
  color: var(--color-ink);
  font-weight: 600;
}