/* =========================================================
   KJ6ER — editorial paper theme
   Warm cream paper, ink serif, muted copper + stamp-red accents.
   Vintage QSL feel without the CRT gimmicks.
   Mobile-first.
   ========================================================= */

:root {
  --paper:      #faf2de;  /* cream / bone */
  --paper-2:    #e7dcbd;
  --paper-3:    #dccfa9;
  --ink:        #1c1812;
  --ink-2:      #3b342a;
  --muted:      #70654d;
  --muted-2:    #8c8166;
  --rule:       #c6b98f;
  --rule-soft:  #d9cfa9;
  --stamp:      #8a2a1a;   /* rubber-stamp red */
  --stamp-2:    #6d200f;
  --copper:     #8a5a18;   /* warm brass */
  --copper-2:   #5e3d0e;
  --teal:       #1f5967;   /* vintage technical blue */
  --teal-2:     #164653;
  --teal-soft:  rgba(31, 89, 103, 0.10);
  --olive:      #4f6236;   /* muted printed-page green */
  --olive-2:    #394726;

  --body:       "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --display:    "Space Grotesk", "Inter", system-ui, sans-serif;
  --mono:       "IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace;

  --radius:     3px;
  --maxw:       760px;
}

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

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

body {
  margin: 0;
  background:
    /* very faint paper grain */
    radial-gradient(
      circle at 20% 10%,
      rgba(0,0,0,0.015) 0 1px, transparent 2px
    ),
    radial-gradient(
      circle at 70% 60%,
      rgba(0,0,0,0.015) 0 1px, transparent 2px
    ),
    var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: clamp(16px, 0.5vw + 14px, 17px);
  line-height: 1.6;
  min-height: 100dvh;
  overflow-x: hidden;
  font-feature-settings: "kern", "liga", "onum";
}

a {
  color: var(--stamp);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 0.5px;
  transition: color 0.12s ease;
}
a:hover { color: var(--stamp-2); text-decoration-thickness: 1px; }
a:focus-visible {
  outline: 2px solid var(--stamp);
  outline-offset: 3px;
  border-radius: 2px;
}

::selection { background: rgba(138, 42, 26, 0.22); }

/* =========================================================
   Hero — restrained QSL masthead
   ========================================================= */
.hero {
  padding: 40px 20px 8px;
}

.qsl-card {
  position: relative;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 34px 24px 26px;
  text-align: center;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  background:
    url("assets/world-map.svg") center center / min(92%, 720px) no-repeat,
    linear-gradient(180deg, var(--paper-2) 0%, var(--paper) 100%);
}
.qsl-card::before,
.qsl-card::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--ink);
  opacity: 0.55;
}
.qsl-card::before { top: 4px; }
.qsl-card::after  { bottom: 4px; }

.qsl-corner {
  position: absolute;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}
.qsl-corner--tl { top: 14px; left: 16px; }
.qsl-corner--tr { top: 14px; right: 16px; color: var(--stamp); }
.qsl-corner--bl { bottom: 14px; left: 16px; }
.qsl-corner--br { bottom: 14px; right: 16px; color: var(--teal); }

.hero__eyebrow {
  display: inline-block;
  margin: 0 0 12px;
  padding: 5px 14px;
  border: 1.5px solid var(--stamp);
  border-radius: 2px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--stamp);
}
.hero__callsign {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(64px, 14vw, 132px);
  line-height: 0.95;
  letter-spacing: -0.02em;
  margin: 8px 0 10px;
  color: var(--ink);
}
.hero__name {
  font-family: var(--mono);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin: 0 0 6px;
  color: var(--ink-2);
}
.hero__tagline {
  font-family: var(--body);
  font-style: italic;
  font-size: clamp(15px, 1.2vw + 12px, 18px);
  margin: 10px auto 0;
  max-width: 46ch;
  color: var(--ink-2);
}
.hero__image {
  display: block;
  margin: 22px auto 0;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--ink);
  filter: sepia(0.1) contrast(1.02);
}

/* =========================================================
   Main content
   ========================================================= */
main {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 16px 20px 48px;
}

.sectionnav {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  justify-content: center;
  border-top: 1px solid var(--rule-soft);
  border-bottom: 1px solid var(--rule-soft);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.sectionnav a {
  color: var(--muted);
  text-decoration: none;
  padding: 2px 0;
  border-bottom: 1px solid transparent;
  transition: color 120ms, border-color 120ms;
}
.sectionnav a:hover,
.sectionnav a:focus-visible {
  color: var(--stamp);
  border-bottom-color: var(--stamp);
  outline: none;
}

.panel {
  padding: 44px 0 10px;
  border-top: 1px solid var(--rule);
}
.panel:first-of-type { border-top: 0; padding-top: 32px; }

.panel--accent {
  margin-top: 28px;
  padding: 32px 24px 28px;
  border: 1px solid var(--teal);
  background:
    linear-gradient(180deg, var(--teal-soft), rgba(31, 89, 103, 0.03)),
    var(--paper);
  position: relative;
}
.panel--accent::before {
  content: "";
  position: absolute;
  inset: 4px;
  border: 1px solid rgba(31, 89, 103, 0.28);
  pointer-events: none;
}

.panel__header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 0 0 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--rule);
}
.panel__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: var(--icon-bg, rgba(28, 24, 18, 0.06));
  color: var(--icon-color, var(--stamp));
  flex: 0 0 auto;
}
.panel__icon svg {
  width: 22px;
  height: 22px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.panel__title {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(22px, 1.8vw + 14px, 30px);
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0;
  color: var(--ink);
}

/* Section-specific icon colors */
#featured-designs .panel__icon { --icon-bg: rgba(31, 89, 103, 0.10); --icon-color: var(--teal); }
#plans .panel__icon            { --icon-bg: rgba(138, 42, 26, 0.10); --icon-color: var(--stamp); }
#subscribe .panel__icon        { --icon-bg: rgba(31, 89, 103, 0.14); --icon-color: var(--teal); }
#shop .panel__icon             { --icon-bg: rgba(138, 90, 24, 0.10); --icon-color: var(--copper); }
#about .panel__icon            { --icon-bg: rgba(79, 98, 54, 0.10); --icon-color: var(--olive); }
#featured .panel__icon         { --icon-bg: rgba(31, 89, 103, 0.10); --icon-color: var(--teal); }
#programs .panel__icon         { --icon-bg: rgba(138, 90, 24, 0.10); --icon-color: var(--copper); }
#donate .panel__icon           { --icon-bg: rgba(138, 42, 26, 0.10); --icon-color: var(--stamp); }
#contact .panel__icon          { --icon-bg: rgba(79, 98, 54, 0.10); --icon-color: var(--olive); }

.panel__lead {
  margin: 0 0 16px;
  color: var(--ink-2);
  font-size: 0.98em;
}
.panel__note {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  margin: 12px 0 0;
  letter-spacing: 0.02em;
}

/* =========================================================
   Featured Designs (visual cards)
   ========================================================= */
.designs {
  list-style: none;
  padding: 0;
  margin: 10px 0 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}
.design { display: flex; }

.design__link {
  display: flex;
  flex-direction: column;
  width: 100%;
  border: 1px solid var(--rule);
  border-top: 3px solid var(--accent, var(--ink));
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--ink);
  text-decoration: none;
  overflow: hidden;
  transition: border-color 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}
.design__link:hover,
.design__link:focus-visible {
  border-color: var(--accent, var(--ink));
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(28, 24, 18, 0.10);
  outline: none;
  text-decoration: none;
}

.design--performer  { --accent: var(--teal); }
.design--challenger { --accent: var(--stamp); }
.design--dominator  { --accent: var(--copper); }

.design__image {
  background: linear-gradient(180deg, var(--paper-2) 0%, var(--paper) 100%);
  border-bottom: 1px solid var(--rule);
  aspect-ratio: 16 / 10;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6px 10px;
}
.design__image img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.design__body {
  padding: 14px 16px 16px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.design__eyebrow {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent, var(--muted));
}
.design__name {
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.3em;
  letter-spacing: -0.02em;
  margin: 4px 0 2px;
  color: var(--ink);
}
.design__specs {
  font-family: var(--mono);
  font-size: 0.82em;
  color: var(--muted);
  margin: 0 0 10px;
}
.design__cta {
  margin-top: auto;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent, var(--stamp));
}

/* =========================================================
   Plans — grouped, searchable, scrollable card
   ========================================================= */
.plans-toolbar { margin: 6px 0 14px; }

.plans-search {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.plans-search:focus-within {
  border-color: var(--ink);
  box-shadow: 0 0 0 2px rgba(138, 90, 24, 0.2);
}
.plans-search__icon { color: var(--muted); flex: 0 0 auto; }
.plans-search__input {
  flex: 1;
  background: transparent;
  border: 0;
  outline: none;
  font: inherit;
  color: var(--ink);
  min-width: 0;
}
.plans-search__input::placeholder { color: var(--muted-2); font-style: italic; }

#plans-container,
#newsletters-container,
#ham-sites-container,
#featured-container {
  max-height: min(62vh, 560px);
  overflow-y: auto;
  padding: 14px 18px;
  border: 1px solid var(--rule);
  background: var(--paper-2);
  border-radius: var(--radius);
  scrollbar-width: thin;
  scrollbar-color: var(--rule) transparent;
}
#newsletters-container,
#ham-sites-container { max-height: 280px; }
#featured-container { max-height: 220px; }
#plans-container::-webkit-scrollbar,
#newsletters-container::-webkit-scrollbar,
#ham-sites-container::-webkit-scrollbar,
#featured-container::-webkit-scrollbar { width: 10px; }
#plans-container::-webkit-scrollbar-track,
#newsletters-container::-webkit-scrollbar-track,
#ham-sites-container::-webkit-scrollbar-track,
#featured-container::-webkit-scrollbar-track { background: transparent; }
#plans-container::-webkit-scrollbar-thumb,
#newsletters-container::-webkit-scrollbar-thumb,
#ham-sites-container::-webkit-scrollbar-thumb,
#featured-container::-webkit-scrollbar-thumb {
  background: var(--rule);
  border-radius: 999px;
  border: 2px solid var(--paper-2);
}
#plans-container::-webkit-scrollbar-thumb:hover,
#newsletters-container::-webkit-scrollbar-thumb:hover,
#ham-sites-container::-webkit-scrollbar-thumb:hover,
#featured-container::-webkit-scrollbar-thumb:hover { background: var(--copper); }

.plan-group { margin: 22px 0; --cat: var(--muted); }
.plan-group:first-child { margin-top: 4px; }
.plan-group:last-child { margin-bottom: 4px; }

/* Category accent colors — cycle in source order. Stable even when
   groups are hidden by the search filter (nth-of-type doesn't re-index). */
.plan-group:nth-of-type(1) { --cat: var(--olive); }   /* Primers & Reference */
.plan-group:nth-of-type(2) { --cat: var(--teal); }    /* Quarterwave */
.plan-group:nth-of-type(3) { --cat: var(--stamp); }   /* Halfwave */
.plan-group:nth-of-type(4) { --cat: var(--copper); }  /* Arrays */

.plan-group__title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 12px;
  padding-bottom: 6px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 1px solid var(--rule-soft);
}
.plan-group__title::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 2px;
  background: var(--cat);
  flex: 0 0 auto;
}
.plan-group__name { color: var(--ink); }
.plan-group__count {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--cat);
  letter-spacing: 0;
}

.plans {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}

.plan__link {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-areas:
    "name cta"
    "specs cta";
  gap: 4px 16px;
  align-items: center;
  padding: 14px 16px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--ink);
  text-decoration: none;
  transition: border-color 0.15s ease, background 0.15s ease, transform 0.12s ease;
}
.plan__link:hover,
.plan__link:focus-visible {
  border-color: var(--ink);
  background: var(--paper-2);
  transform: translateY(-1px);
  outline: none;
  text-decoration: none;
}

.plan__name {
  grid-area: name;
  font-family: var(--display);
  font-weight: 600;
  font-size: 1.02em;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.plan__specs {
  grid-area: specs;
  font-family: var(--mono);
  font-size: 0.82em;
  color: var(--muted);
  letter-spacing: 0.01em;
}
.plan__cta {
  grid-area: cta;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--stamp);
  white-space: nowrap;
}

@media (max-width: 380px) {
  .plan__link {
    grid-template-columns: 1fr;
    grid-template-areas:
      "name"
      "specs"
      "cta";
  }
  .plan__cta { justify-self: start; }
}

/* =========================================================
   Signup (Antenna Geeks)
   ========================================================= */
.signup { margin-top: 12px; max-width: 520px; }

.signup__label {
  display: block;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}

.signup__row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.signup__input {
  flex: 1 1 220px;
  min-width: 0;
  padding: 12px 14px;
  background: var(--paper);
  color: var(--ink);
  font: inherit;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.signup__input:focus {
  outline: none;
  border-color: var(--ink);
  box-shadow: 0 0 0 2px rgba(138, 90, 24, 0.2);
}

.signup__button {
  padding: 12px 20px;
  background: var(--ink);
  color: var(--paper);
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.08s ease;
}
.signup__button:hover { background: var(--stamp-2); border-color: var(--stamp-2); }
.signup__button:active { transform: translateY(1px); }

.signup__status {
  min-height: 1.3em;
  margin: 10px 0 0;
  font-size: 14px;
  color: var(--ink-2);
  font-style: italic;
}
.signup__status.is-error { color: var(--stamp); font-style: normal; }

/* =========================================================
   About — mission pull-quote
   ========================================================= */
.mission {
  margin: 14px 0;
  padding: 14px 18px;
  border-left: 3px solid var(--stamp);
  background: var(--paper-2);
  color: var(--ink-2);
  font-style: italic;
}

/* =========================================================
   Featured — press & interview links
   ========================================================= */
.featured {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 8px;
}
.featured li a {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 16px;
  align-items: center;
  padding: 12px 16px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--ink);
  text-decoration: none;
  transition: border-color 0.15s ease, background 0.15s ease, transform 0.12s ease;
}
.featured li a:hover,
.featured li a:focus-visible {
  border-color: var(--teal);
  background: var(--teal-soft);
  transform: translateY(-1px);
  text-decoration: none;
  outline: none;
}
.featured__pub {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--teal);
}
.featured__title {
  font-family: var(--body);
  font-weight: 500;
  color: var(--ink);
}
@media (max-width: 500px) {
  .featured li a { grid-template-columns: 1fr; gap: 2px; padding: 12px 14px; }
}

/* =========================================================
   Programs — Heroes + Beta Testers
   ========================================================= */
.programs {
  display: grid;
  gap: 12px;
  margin-top: 4px;
}
.program {
  padding: 16px 18px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--paper);
}
.program__title {
  font-family: var(--display);
  font-weight: 600;
  font-size: 1.05em;
  letter-spacing: -0.01em;
  margin: 0 0 8px;
  color: var(--ink);
}
.program p { margin: 0; color: var(--ink-2); font-size: 0.98em; }

@media (min-width: 640px) {
  .programs { grid-template-columns: 1fr 1fr; gap: 14px; }
}

/* =========================================================
   Shop CTA
   ========================================================= */
.shop__cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
  padding: 12px 20px;
  background: var(--ink);
  color: var(--paper);
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-decoration: none;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.08s ease;
}
.shop__cta:hover,
.shop__cta:focus-visible {
  background: var(--stamp-2);
  border-color: var(--stamp-2);
  color: var(--paper);
  text-decoration: none;
  outline: none;
}
.shop__cta:active { transform: translateY(1px); }

.shop__cta--ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--ink);
}
.shop__cta--ghost:hover,
.shop__cta--ghost:focus-visible {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

/* =========================================================
   Contact
   ========================================================= */
.contact {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 4px;
}
.contact li {
  display: grid;
  grid-template-columns: 80px 1fr;
  align-items: baseline;
  gap: 12px;
  padding: 6px 0;
  border-bottom: 1px dotted var(--rule);
}
.contact li:last-child { border-bottom: 0; }
.contact__key {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}
.contact__val { font-family: var(--mono); font-size: 14px; color: var(--ink); }

/* =========================================================
   Footer
   ========================================================= */
.footer {
  text-align: center;
  padding: 30px 16px 40px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  border-top: 1px solid var(--rule);
  max-width: var(--maxw);
  margin: 0 auto;
}
.footer p { margin: 0; }
.footer__counter { margin-top: 10px !important; }
.footer__counter img { vertical-align: middle; }

/* =========================================================
   Motion
   ========================================================= */
@media (prefers-reduced-motion: reduce) {
  .plan__link, .signup__button, .shop__cta, a { transition: none; }
}