/* =============================================================
   qtool.app — Forma design system, production CSS
   Source: forma.v2.css from designer + page-layout additions
   ============================================================= */

@import url('https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&family=Geist:wght@300;400;500;600;700&family=Geist+Mono:wght@400;500&display=swap');

/* -------- TOKENS — LIGHT (paper, default) -------- */
:root, [data-theme="light"] {
  --paper:      #F2EEE6;
  --paper-soft: #ECE7DD;
  --paper-deep: #E2DDD3;
  --ink:        #111111;
  --stone-900:  #2B2A28;
  --stone-700:  #5C5751;
  --stone-500:  #8A847B;
  --stone-400:  #A8A29A;
  --stone-300:  #C4BEB4;
  --stone-200:  #D8D3C8;

  --vermilion:     #E63B19;
  --vermilion-700: #B22A0F;
  --vermilion-100: #F8DDD3;
  --sage:       #4F6E5B;
  --sage-100:   #DCE3DD;
  --ochre:      #C58A1B;

  --bg:           var(--paper);
  --bg-soft:      var(--paper-soft);
  --bg-deep:      var(--paper-deep);
  --bg-inverted:  var(--ink);
  --surface:      #FFFFFF;

  --fg:           var(--ink);
  --fg-muted:     var(--stone-700);
  --fg-subtle:    var(--stone-500);
  --fg-inverted:  var(--paper);

  --border:        var(--stone-300);
  --border-strong: var(--stone-500);
  --border-inked:  var(--ink);

  --accent:        var(--vermilion);
  --accent-press:  var(--vermilion-700);
  --accent-tint:   var(--vermilion-100);

  --rule-inverted: rgba(242,238,230,0.18);

  --font-display: 'Instrument Serif', 'Times New Roman', Georgia, serif;
  --font-sans:    'Geist', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
  --font-mono:    'Geist Mono', 'SF Mono', Menlo, Consolas, monospace;

  --ease:         cubic-bezier(0.2, 0.8, 0.2, 1);
  --container:    1240px;
}

/* -------- TOKENS — DARK (ink) -------- */
[data-theme="dark"] {
  --paper:      #141312;
  --paper-soft: #1A1917;
  --paper-deep: #221F1C;
  --ink:        #F2EEE6;
  --stone-900:  #E8E3D9;
  --stone-700:  #A8A29A;
  --stone-500:  #7A746B;
  --stone-400:  #5C5751;
  --stone-300:  #3B3631;
  --stone-200:  #2B2825;

  --vermilion:     #FF5A37;
  --vermilion-700: #E63B19;
  --vermilion-100: rgba(255,90,55,0.16);
  --sage:       #7BA489;
  --sage-100:   rgba(123,164,137,0.16);

  --bg:           var(--paper);
  --bg-soft:      var(--paper-soft);
  --bg-deep:      var(--paper-deep);
  --bg-inverted:  #F2EEE6;
  --surface:      #1A1917;

  --fg:           var(--ink);
  --fg-muted:     var(--stone-700);
  --fg-subtle:    var(--stone-500);
  --fg-inverted:  #141312;

  --border:        var(--stone-300);
  --border-strong: var(--stone-500);
  --border-inked:  var(--ink);

  --rule-inverted: rgba(20,19,18,0.32);
}

/* -------- RESET -------- */
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; background: var(--bg); }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  transition: background 240ms var(--ease), color 240ms var(--ease);
}
img, svg { display: block; max-width: 100%; }
button { font: inherit; cursor: pointer; }
a { color: inherit; text-decoration: none; }
::selection { background: var(--vermilion); color: var(--paper); }
[hidden] { display: none !important; }

/* -------- LAYOUT -------- */
.f-container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px;
}
@media (min-width: 720px)  { .f-container { padding: 0 24px; } }
@media (min-width: 1024px) { .f-container { padding: 0 32px; } }

.f-section { padding: 56px 0; border-bottom: 1px solid var(--border); }
@media (min-width: 720px)  { .f-section { padding: 88px 0; } }
@media (min-width: 1024px) { .f-section { padding: 120px 0; } }

.f-section--soft   { background: var(--bg-soft); }
.f-section--inked  { background: var(--bg-inverted); color: var(--fg-inverted); }
.f-section--inked .f-eyebrow { color: var(--paper); opacity: 0.6; }

/* -------- TYPE -------- */
.f-eyebrow {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-muted);
}
.f-eyebrow .mark { color: var(--vermilion); }

.f-display {
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.05;
  color: var(--fg);
  margin: 0;
}
.f-display em, .f-display .italic {
  font-style: italic;
  color: var(--vermilion);
}

h1.f-display { font-size: clamp(44px, 9vw, 96px); }
h2.f-display { font-size: clamp(36px, 6vw, 64px); }
h3.f-display { font-size: clamp(28px, 4vw, 44px); }

.f-h-sans {
  font-family: var(--font-sans);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.2;
  color: var(--fg);
  margin: 0;
}
h3.f-h-sans { font-size: clamp(20px, 2.4vw, 26px); }
h4.f-h-sans { font-size: 18px; font-weight: 500; }

.f-lede {
  font-family: var(--font-sans);
  font-size: clamp(16px, 1.6vw, 20px);
  line-height: 1.45;
  color: var(--fg-muted);
  text-wrap: pretty;
  margin: 0;
}

.f-body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--fg);
  text-wrap: pretty;
  margin: 0;
}
.f-body--muted { color: var(--fg-muted); }
.f-body p { margin: 0 0 1em; }
.f-body p:last-child { margin-bottom: 0; }
.f-body strong { font-weight: 600; }
.f-body em { font-family: var(--font-display); font-style: italic; color: var(--vermilion); }

.f-caption {
  font-family: var(--font-sans);
  font-size: 13px;
  line-height: 1.45;
  color: var(--fg-subtle);
}

.f-mono {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
}

.f-num {
  font-family: var(--font-mono);
  font-feature-settings: 'tnum' 1, 'lnum' 1;
}

/* -------- NAV -------- */
.f-nav {
  position: sticky; top: 0; z-index: 20;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  transition: background 240ms var(--ease);
}
.f-nav__inner {
  height: 64px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.f-logo {
  font-family: var(--font-display);
  font-size: 32px; line-height: 1;
  letter-spacing: -0.02em;
  color: var(--fg);
  display: inline-flex; align-items: baseline;
}
.f-logo .it { color: var(--vermilion); font-style: italic; }
.f-nav__links { display: none; gap: 28px; }
.f-nav__links a { font-size: 14px; font-weight: 500; }
.f-nav__links a:hover { color: var(--vermilion); }
.f-nav__actions { display: flex; align-items: center; gap: 12px; }

@media (min-width: 1024px) {
  .f-nav__links { display: flex; }
}

.f-theme-toggle {
  display: inline-flex; align-items: center; gap: 8px;
  background: transparent; border: 1px solid var(--border);
  color: var(--fg); padding: 8px 12px; border-radius: 2px;
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.06em; text-transform: uppercase;
  transition: border-color 120ms var(--ease);
}
.f-theme-toggle:hover { border-color: var(--border-strong); }
.f-theme-toggle svg { width: 14px; height: 14px; }
.f-theme-toggle .label { display: none; }
@media (min-width: 720px) { .f-theme-toggle .label { display: inline; } }

.f-burger {
  display: inline-flex; align-items: center; gap: 8px;
  background: transparent; border: 1px solid var(--border);
  color: var(--fg); padding: 8px 12px; border-radius: 2px;
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.08em; text-transform: uppercase;
}
@media (min-width: 1024px) { .f-burger { display: none; } }

.f-lang {
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--fg-muted);
}

.f-cta {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--font-sans); font-size: 14px; font-weight: 500;
  background: var(--ink); color: var(--paper);
  padding: 10px 18px; border: 1px solid var(--ink);
  border-radius: 2px;
  transition: opacity 120ms var(--ease);
}
.f-cta:hover { opacity: 0.85; }
.f-cta--ghost { background: transparent; color: var(--fg); }
.f-cta--accent { background: var(--vermilion); border-color: var(--vermilion); color: #FFFFFF; }

/* Mobile sheet */
.f-sheet {
  position: fixed; inset: 0; z-index: 50;
  background: var(--bg);
  display: none;
  flex-direction: column; gap: 28px;
  padding: 24px 20px;
}
.f-sheet[data-open="true"] { display: flex; }
.f-sheet a.f-sheet__link {
  font-family: var(--font-display); font-size: 36px;
  letter-spacing: -0.02em; color: var(--fg);
}

/* -------- STATUS BAR -------- */
.f-status {
  background: var(--bg-soft);
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg-muted);
}
.f-status__inner {
  display: flex; align-items: center; gap: 16px;
  height: 32px;
  overflow-x: auto;
  white-space: nowrap;
  scrollbar-width: none;
}
.f-status__inner::-webkit-scrollbar { display: none; }
.f-status__dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--sage);
  box-shadow: 0 0 0 4px var(--sage-100);
  display: inline-block;
}
.f-status__sep { color: var(--stone-400); }

/* -------- HERO LAYOUT (per-page from designer, lifted here) -------- */
.h-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: start;
}
@media (min-width: 1024px) {
  .h-hero-grid {
    grid-template-columns: 1fr 1fr;
    gap: 64px;
  }
}
.h-hero-left { display: flex; flex-direction: column; gap: 0; }
.h-hero-right { position: relative; }

/* Centered hero variant (pdf-compress-b style) */
.h-hero-centered {
  text-align: center;
  max-width: 920px;
  margin: 0 auto;
}
.h-hero-centered .f-display { font-size: clamp(56px, 11vw, 128px); }
.h-hero-centered .f-lede { margin: 24px auto 32px; max-width: 56ch; }
.h-hero-centered .f-trust { justify-content: center; }

/* -------- DROPZONE -------- */
.f-drop {
  position: relative;
  background: var(--paper-soft);
  border: 1.5px solid var(--border-inked);
  padding: 32px 24px 24px;
  min-height: 360px;
  display: flex; flex-direction: column; align-items: flex-start;
  transition: background 160ms var(--ease), border-color 160ms var(--ease);
}
@media (min-width: 720px) {
  .f-drop { padding: 40px 36px 28px; min-height: 460px; }
}
.f-drop[data-dragover="true"] {
  background: var(--vermilion-100);
  border-color: var(--vermilion);
}
.f-drop[data-state="uploading"],
.f-drop[data-state="done"],
.f-drop[data-state="failed"] {
  align-items: stretch;
}

/* corner brackets */
.f-drop__corner {
  position: absolute; width: 14px; height: 14px;
  border-color: var(--ink);
}
.f-drop__corner--tl { top: -1.5px; inset-inline-start: -1.5px; border-top: 1.5px solid; border-inline-start: 1.5px solid; }
.f-drop__corner--tr { top: -1.5px; inset-inline-end:   -1.5px; border-top: 1.5px solid; border-inline-end:   1.5px solid; }
.f-drop__corner--bl { bottom: -1.5px; inset-inline-start: -1.5px; border-bottom: 1.5px solid; border-inline-start: 1.5px solid; }
.f-drop__corner--br { bottom: -1.5px; inset-inline-end:   -1.5px; border-bottom: 1.5px solid; border-inline-end:   1.5px solid; }

.f-drop__num {
  position: absolute; top: 14px; inset-inline-end: 16px;
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--fg-subtle);
}

.f-drop__eyebrow {
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: 24px;
}

.f-drop__huge {
  font-family: var(--font-display);
  font-size: clamp(40px, 8vw, 88px);
  line-height: 0.95;
  letter-spacing: -0.03em;
  color: var(--ink);
  margin: 0 0 8px;
  display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap;
}
.f-drop__huge .arrow {
  display: inline-block;
  font-style: italic;
  color: var(--vermilion);
}
.f-drop__huge .from { display: inline-block; }
.f-drop__huge .to {
  display: inline-block;
  font-style: italic;
  color: var(--vermilion);
}

.f-drop__hint {
  margin: 16px 0 24px;
  font-family: var(--font-sans); font-size: 14px;
  color: var(--fg-muted);
}

.f-drop__actions {
  display: flex; flex-wrap: wrap; gap: 12px;
  margin-bottom: 24px;
}

.f-drop__btn {
  font-family: var(--font-sans); font-size: 15px; font-weight: 500;
  background: var(--ink); color: var(--paper);
  padding: 14px 22px; border: none; border-radius: 2px;
  transition: opacity 120ms var(--ease);
}
.f-drop__btn:hover { opacity: 0.88; }
.f-drop__btn--ghost {
  background: transparent; color: var(--fg);
  padding: 13px 18px; border: 1px solid var(--ink);
}

.f-drop__meta {
  margin-top: auto;
  width: 100%;
  display: flex; flex-wrap: wrap; gap: 16px 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.04em; text-transform: uppercase;
  color: var(--fg-muted);
}
.f-drop__meta b { color: var(--fg); font-weight: 500; }

.f-drop__file {
  display: flex; align-items: center; gap: 16px;
  margin-bottom: 16px;
}
.f-drop__file-ico {
  width: 48px; height: 56px;
  flex: 0 0 auto;
  border: 1.5px solid var(--ink);
  position: relative;
  font-family: var(--font-mono); font-size: 10px;
  letter-spacing: 0.06em;
  display: flex; align-items: flex-end; justify-content: center;
  padding-bottom: 6px;
  color: var(--ink);
  background: var(--paper);
}
.f-drop__file-ico::before {
  content: ''; position: absolute; top: -1.5px; inset-inline-end: -1.5px;
  width: 14px; height: 14px;
  background: var(--paper-soft);
  border-left: 1.5px solid var(--ink);
  border-bottom: 1.5px solid var(--ink);
}
.f-drop__file-name {
  font-family: var(--font-sans); font-size: 16px; font-weight: 500;
  color: var(--fg);
  word-break: break-word;
}
.f-drop__file-meta {
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.04em; text-transform: uppercase;
  color: var(--fg-muted);
  margin-top: 4px;
}

.f-progress {
  height: 28px; position: relative;
  background: var(--paper-deep);
  border: 1px solid var(--border-strong);
  margin-bottom: 16px;
  overflow: hidden;
}
.f-progress__bar {
  position: absolute; inset-inline-start: 0; top: 0; bottom: 0;
  background: var(--ink);
  width: 0%;
  transition: width 200ms var(--ease);
}
.f-progress__bar--accent { background: var(--vermilion); }
.f-progress__label {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 12px;
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--fg);
  mix-blend-mode: difference;
  filter: invert(1);
}

.f-drop__state-msg {
  font-family: var(--font-sans); font-size: 15px;
  color: var(--fg);
  margin-bottom: 16px;
  display: flex; align-items: center; gap: 10px;
}
.f-drop__state-msg .ok { color: var(--sage); }
.f-drop__state-msg .err { color: var(--vermilion); }

/* -------- TRUST STRIP -------- */
.f-trust {
  margin-top: 24px;
  display: flex; flex-wrap: wrap; gap: 14px 28px;
  font-family: var(--font-mono); font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--fg-muted);
  list-style: none; padding: 0;
}
.f-trust__item { display: inline-flex; align-items: center; gap: 8px; }
.f-trust__dot {
  width: 6px; height: 6px; border-radius: 50%; background: var(--vermilion);
  display: inline-block;
}

/* -------- BLOCK -------- */
.f-block { display: grid; grid-template-columns: 1fr; gap: 32px; }
@media (min-width: 1024px) {
  .f-block { grid-template-columns: 4fr 8fr; gap: 64px; }
}
.f-block__head .f-eyebrow { margin-bottom: 16px; display: block; }
.f-block__head h2 { margin: 12px 0 16px; }
.f-block__body > * + * { margin-top: 16px; }

/* Steps */
.f-steps { list-style: none; padding: 0; margin: 0; display: grid; gap: 0; }
.f-step {
  display: grid;
  grid-template-columns: 56px 1fr;
  align-items: start;
  padding: 24px 0;
  border-top: 1px solid var(--border);
  gap: 16px;
}
.f-step:last-child { border-bottom: 1px solid var(--border); }
.f-step__n {
  font-family: var(--font-mono); font-size: 14px; font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--vermilion);
  padding-top: 4px;
}
.f-step__title { font-family: var(--font-display); font-size: 28px; line-height: 1.1; letter-spacing: -0.02em; margin: 0 0 6px; }
.f-step__body { color: var(--fg-muted); font-size: 15px; line-height: 1.55; margin: 0; }

/* FAQ */
.f-faq { list-style: none; padding: 0; margin: 0; }
.f-faq__item { border-top: 1px solid var(--border); }
.f-faq__item:last-child { border-bottom: 1px solid var(--border); }
.f-faq__q {
  width: 100%;
  display: flex; align-items: center; gap: 18px;
  background: transparent; border: none; cursor: pointer;
  padding: 22px 0; text-align: start;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.4vw, 26px);
  line-height: 1.2; letter-spacing: -0.01em;
  color: var(--fg);
}
.f-faq__q-n {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em;
  color: var(--vermilion);
  flex: 0 0 auto;
  padding-top: 4px;
}
.f-faq__q-text { flex: 1; }
.f-faq__q-toggle {
  flex: 0 0 auto;
  font-family: var(--font-mono); font-size: 16px;
  color: var(--fg-muted);
  width: 16px; text-align: center;
}
.f-faq__a {
  display: none;
  padding: 0 0 24px 56px;
  color: var(--fg-muted); font-size: 15px; line-height: 1.6;
  max-width: 720px;
}
.f-faq__item[data-open="true"] .f-faq__a { display: block; }
.f-faq__item[data-open="true"] .f-faq__q-toggle::before { content: '−'; }
.f-faq__item:not([data-open="true"]) .f-faq__q-toggle::before { content: '+'; }

/* Related grid */
.f-related {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid var(--border);
  border-inline-start: 1px solid var(--border);
}
@media (min-width: 600px)  { .f-related { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .f-related { grid-template-columns: repeat(4, 1fr); } }

.f-related__card {
  display: flex; flex-direction: column; justify-content: space-between;
  gap: 14px;
  padding: 22px 22px 18px;
  border-inline-end: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  color: var(--fg);
  transition: background 120ms var(--ease);
  min-height: 140px;
}
.f-related__card:hover { background: var(--bg-soft); }
.f-related__card .pair {
  font-family: var(--font-display);
  font-size: 28px; line-height: 1;
  letter-spacing: -0.02em;
  display: flex; align-items: baseline; gap: 10px;
  flex-wrap: wrap;
}
.f-related__card .pair .from { color: var(--fg); }
.f-related__card .pair .arrow { color: var(--vermilion); font-style: italic; }
.f-related__card .pair .to { color: var(--vermilion); font-style: italic; }
.f-related__card .meta {
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.04em; text-transform: uppercase;
  color: var(--fg-muted);
  display: flex; justify-content: space-between; gap: 8px;
}

.f-arrow {
  display: inline-block; vertical-align: middle;
  width: 1em; height: 1em;
  background: currentColor;
  -webkit-mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'><path d='M3 8h9M8 4l4 4-4 4' stroke='black' stroke-width='1.5' fill='none' stroke-linecap='square' stroke-linejoin='miter'/></svg>") center/contain no-repeat;
          mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'><path d='M3 8h9M8 4l4 4-4 4' stroke='black' stroke-width='1.5' fill='none' stroke-linecap='square' stroke-linejoin='miter'/></svg>") center/contain no-repeat;
}
[dir="rtl"] .f-arrow { transform: scaleX(-1); }

/* -------- COMPARE TABLE -------- */
.f-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-sans);
  font-size: 14px;
}
.f-table th, .f-table td {
  padding: 16px 18px;
  border-bottom: 1px solid var(--border);
  text-align: start;
  vertical-align: top;
}
.f-table thead th {
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--fg-muted);
  font-weight: 500;
  border-top: 1.5px solid var(--ink);
  border-bottom: 1.5px solid var(--ink);
}
.f-table tbody tr:hover { background: var(--bg-soft); }
.f-table tbody tr a { display: block; color: inherit; }
.f-table .pair {
  font-family: var(--font-display); font-size: 22px;
  letter-spacing: -0.02em; line-height: 1;
}
.f-table .pair em { font-style: italic; color: var(--vermilion); }
.f-table .num { font-family: var(--font-mono); color: var(--fg-muted); }
.f-table .arrow { color: var(--vermilion); }

/* -------- TARGET-SIZE TABLE (PDF compress killer) -------- */
.f-target {
  border-top: 1.5px solid var(--ink);
  border-bottom: 1.5px solid var(--ink);
}
.f-target__row {
  display: grid;
  grid-template-columns: 1.2fr 1fr 2fr;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--border);
  transition: background 120ms var(--ease);
}
.f-target__row:last-child { border-bottom: none; }
.f-target__row--head {
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--fg-muted);
  padding: 12px 0;
}
.f-target__size {
  font-family: var(--font-display); font-size: 22px;
  letter-spacing: -0.02em; line-height: 1;
}
.f-target__use { color: var(--fg-muted); font-size: 14px; }
.f-target__preset {
  font-family: var(--font-mono); font-size: 12px;
  letter-spacing: 0.04em; text-transform: uppercase;
  color: var(--vermilion);
}
.f-target__row[role="button"] { cursor: pointer; padding-inline: 12px; margin-inline: -12px; }
.f-target__row[role="button"]:hover,
.f-target__row[role="button"]:focus-visible { background: var(--bg-soft); outline: none; }
.f-target__row[data-active="true"] { background: var(--vermilion-100); }
.f-target__row[data-active="true"] .f-target__preset { color: var(--vermilion-700); font-weight: 600; }
@media (max-width: 600px) {
  .f-target__row { grid-template-columns: 1fr; gap: 4px; padding: 14px 0; }
  .f-target__row--head { display: none; }
}

/* -------- FOOTER -------- */
.f-footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
}
.f-footer__top {
  display: grid; grid-template-columns: 1fr; gap: 32px;
  padding: 56px 0 32px;
}
@media (min-width: 720px)  { .f-footer__top { grid-template-columns: 1.4fr 1fr 1fr 1fr; padding: 64px 0 40px; } }
@media (min-width: 1024px) { .f-footer__top { grid-template-columns: 2fr 1fr 1fr 1fr; padding: 72px 0 56px; gap: 48px; } }

.f-footer__col h4 {
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--fg-muted);
  margin: 0 0 18px;
}
.f-footer__col ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.f-footer__col a { font-size: 14px; color: var(--fg); }
.f-footer__col a:hover { color: var(--vermilion); }

.f-footer__motto {
  font-family: var(--font-display); font-size: 28px;
  line-height: 1.1; letter-spacing: -0.02em;
  margin: 16px 0 0;
  max-width: 360px;
}
.f-footer__motto em { font-style: italic; color: var(--vermilion); }

.f-footer__bottom {
  display: flex; flex-wrap: wrap; align-items: center;
  gap: 8px 16px;
  padding: 20px 0;
  border-top: 1px solid var(--border);
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--fg-muted);
}
.f-footer__bottom .spacer { flex: 1; }

/* -------- BREADCRUMBS -------- */
.f-crumbs {
  display: flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--fg-muted);
  padding: 16px 0;
  flex-wrap: wrap;
}
.f-crumbs a:hover { color: var(--vermilion); }
.f-crumbs .sep { color: var(--stone-400); }
.f-crumbs .current { color: var(--fg); }

/* -------- UTIL -------- */
.f-rule { border: none; border-top: 1px solid var(--border); margin: 0; }
.f-rule--strong { border-top-color: var(--ink); border-top-width: 1.5px; }

.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;
}

.f-mark {
  font-family: var(--font-display); font-style: italic;
  color: var(--vermilion);
}

/* -------- POPULAR cards (numbered grid for home § 02) -------- */
.f-popular {
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1.5px solid var(--ink);
  border-inline-start: 1px solid var(--border);
}
@media (min-width: 600px)  { .f-popular { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .f-popular { grid-template-columns: repeat(4, 1fr); } }

.f-popular__card {
  border-inline-end: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 24px 22px;
  display: flex; flex-direction: column; gap: 16px;
  color: var(--fg);
  min-height: 200px;
  transition: background 120ms var(--ease);
}
.f-popular__card:hover { background: var(--bg-soft); }
.f-popular__n {
  font-family: var(--font-mono); font-size: 12px;
  letter-spacing: 0.08em; color: var(--vermilion);
}
.f-popular__pair {
  font-family: var(--font-display); font-size: 32px;
  letter-spacing: -0.02em; line-height: 1;
  display: flex; gap: 8px; flex-wrap: wrap;
}
.f-popular__pair em { font-style: italic; color: var(--vermilion); }
.f-popular__cat {
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--fg-muted);
  margin-top: auto;
}
.f-popular__cnt { font-family: var(--font-mono); color: var(--fg); }
.f-popular__cnt span { color: var(--fg-muted); font-size: 11px; letter-spacing: 0.06em; text-transform: uppercase; }

/* -------- CATALOG cards with format chips (home § 04) -------- */
.f-catalog {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid var(--border);
  border-inline-start: 1px solid var(--border);
}
@media (min-width: 720px)  { .f-catalog { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1100px) { .f-catalog { grid-template-columns: repeat(3, 1fr); } }

.f-catalog__cell {
  display: flex; flex-direction: column; gap: 16px;
  padding: 28px 26px 24px;
  border-inline-end: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  min-height: 240px;
  background: var(--bg);
  color: var(--fg);
  transition: background 120ms var(--ease);
}
.f-catalog__cell:hover { background: var(--bg-soft); }
.f-catalog__head { display: flex; align-items: baseline; gap: 12px; }
.f-catalog__head .roman {
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.08em; color: var(--vermilion);
}
.f-catalog__title {
  font-family: var(--font-display); font-size: 28px;
  letter-spacing: -0.02em; line-height: 1; margin: 0;
}
.f-catalog__chips {
  display: flex; flex-wrap: wrap; gap: 6px;
}
.f-chip {
  display: inline-flex; align-items: center;
  padding: 4px 9px;
  border: 1px solid var(--border-strong);
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.04em; text-transform: uppercase;
  color: var(--fg);
  background: transparent;
}
.f-catalog__hint {
  font-family: var(--font-sans); font-size: 14px;
  color: var(--fg-muted); line-height: 1.5;
  margin-top: auto;
}
.f-catalog__link {
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--vermilion);
}

/* -------- MANIFESTO (dark, full-width statement) -------- */
.f-manifesto {
  background: var(--ink);
  color: var(--paper);
  padding: 96px 0 64px;
  border: none;
}
.f-manifesto .f-eyebrow { color: var(--vermilion); }
.f-manifesto h2.f-display {
  color: var(--paper);
  font-size: clamp(36px, 6vw, 80px);
  margin: 16px 0 64px;
  max-width: 22ch;
  text-wrap: balance;
}
@media (min-width: 1024px) {
  .f-manifesto h2.f-display { max-width: none; }
}
.f-manifesto h2 em { color: var(--vermilion); font-style: italic; }
.f-manifesto__stats {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: rgba(242,238,230,0.18);
  border-top: 1px solid rgba(242,238,230,0.18);
  border-bottom: 1px solid rgba(242,238,230,0.18);
  margin-top: 64px;
}
@media (min-width: 720px) { .f-manifesto__stats { grid-template-columns: repeat(4, 1fr); } }
.f-manifesto__stat {
  background: var(--ink);
  padding: 28px 24px;
}
.f-manifesto__stat .v {
  font-family: var(--font-display); font-size: clamp(40px, 5vw, 56px);
  letter-spacing: -0.03em; line-height: 1;
  color: var(--paper);
}
.f-manifesto__stat .v em { color: var(--vermilion); font-style: italic; }
.f-manifesto__stat .l {
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: rgba(242,238,230,0.55);
  margin-top: 10px;
}

.f-folio {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 14px 0; border-top: 1.5px solid var(--ink); border-bottom: 1px solid var(--ink);
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--fg);
  margin-bottom: 32px;
}
.f-folio .it { font-family: var(--font-display); font-style: italic; color: var(--vermilion); text-transform: none; letter-spacing: -0.01em; font-size: 14px; }

/* -------- 404 -------- */
.f-404 {
  text-align: center;
  padding: 96px 0 120px;
}
.f-404 .num {
  font-family: var(--font-display);
  font-size: clamp(120px, 28vw, 320px);
  line-height: 0.9;
  letter-spacing: -0.04em;
  color: var(--vermilion);
  font-style: italic;
}
.f-404 h1 { margin: 24px 0 12px; }
.f-404 p { margin: 0 auto; max-width: 56ch; color: var(--fg-muted); }
.f-404__back { margin-top: 40px; }