/* ==========================================================================
   Ampline — TRON network resource infrastructure
   Design system: neutral paper / graphite, single copper accent, hairline
   borders, structured grid, minimal motion. No gradients, no glow, no glass.
   ========================================================================== */

/* ---------- 1. Tokens ---------- */
:root {
  /* Surfaces */
  --paper:       #FAF9F7;
  --paper-2:     #F2F0EB;
  --paper-3:     #EAE7E0;
  --ink:         #15181B;
  --ink-2:       #1D2126;
  --ink-3:       #262B31;

  /* Text */
  --text:        #15181B;
  --text-muted:  #5A6068;
  --text-faint:  #868C93;
  --on-ink:      #F2F1EE;
  --on-ink-mut:  #A4ABB2;
  --on-ink-fnt:  #767E86;

  /* Lines */
  --line:        #E0DDD6;
  --line-strong: #CFCBC2;
  --line-ink:    #2E343A;

  /* Accent — single copper, used sparingly */
  --accent:      #A75E1E;
  --accent-hov:  #8E4E15;
  --accent-ink:  #DFA163;
  --accent-soft: #F5EBE1;

  /* Signal */
  --ok:          #2F6D46;
  --ok-ink:      #6DBE8C;
  --danger:      #A32B23;

  /* Type */
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;

  /* Rhythm */
  --gap:      1.5rem;
  --sect-y:   clamp(3.5rem, 7vw, 6.5rem);
  --radius:   4px;
  --radius-lg: 6px;
  --maxw:     1180px;
}

/* ---------- 2. Reset & base ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 5.5rem;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

h1, h2, h3, h4 {
  margin: 0 0 .6em;
  line-height: 1.18;
  letter-spacing: -0.018em;
  font-weight: 600;
  text-wrap: balance;
}

h1 { font-size: clamp(2rem, 1.35rem + 2.75vw, 3.25rem); letter-spacing: -0.028em; }
h2 { font-size: clamp(1.5rem, 1.2rem + 1.3vw, 2.15rem); letter-spacing: -0.022em; }
h3 { font-size: 1.0625rem; letter-spacing: -0.01em; }

p { margin: 0 0 1.15rem; max-width: 68ch; text-wrap: pretty; }
p:last-child { margin-bottom: 0; }

a { color: inherit; }

code {
  font-family: var(--mono);
  font-size: .875em;
  background: var(--paper-3);
  padding: .1em .35em;
  border-radius: 3px;
}

/* ---------- 3. Focus & skip link ---------- */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 2px;
}
.site-header :focus-visible,
.site-footer :focus-visible,
.hero :focus-visible,
.section--form :focus-visible { outline-color: var(--accent-ink); }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 200;
  background: var(--ink);
  color: var(--on-ink);
  padding: .75rem 1.25rem;
  font-size: .9375rem;
  text-decoration: none;
}
.skip-link:focus { left: .5rem; top: .5rem; }

/* ---------- 4. Layout ---------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: clamp(1.125rem, 4vw, 2.5rem);
}
.container.narrow { max-width: 820px; }
.center { text-align: center; }
.center p { margin-inline: auto; }

.section { padding-block: var(--sect-y); }
.section--tight { padding-block: clamp(2.5rem, 4vw, 3.5rem); }
.section--alt {
  background: var(--paper-2);
  border-block: 1px solid var(--line);
}

.section__head { max-width: 60ch; margin-bottom: clamp(2rem, 4vw, 3rem); }
.section__sub { color: var(--text-muted); font-size: 1.0625rem; margin: 0; }

.plain-list { list-style: none; margin: 0; padding: 0; }

/* 1px gaps over a line-coloured background render as hairline rules between
   cells, so children need no borders of their own (avoids doubled lines). */
.grid {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
@media (min-width: 720px) {
  .grid--3 { grid-template-columns: repeat(3, 1fr); }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1000px) {
  .grid--4 { grid-template-columns: repeat(4, 1fr); }
}

/* ---------- 5. Typographic utilities ---------- */
.eyebrow {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-family: var(--mono);
  font-size: .75rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1rem;
}
.hero .eyebrow, .section--form .eyebrow { color: var(--on-ink-mut); }

.dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--ok);
  flex: none;
}
.hero .dot, .section--form .dot { background: var(--ok-ink); }

.link-arrow {
  font-weight: 500;
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 1px;
}
.link-arrow:hover { color: var(--accent-hov); }

.fineprint {
  margin-top: 2rem;
  font-size: .875rem;
  color: var(--text-muted);
  max-width: 78ch;
  border-top: 1px solid var(--line);
  padding-top: 1.25rem;
}

/* ---------- 6. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  font: inherit;
  font-size: .9375rem;
  font-weight: 500;
  line-height: 1;
  padding: .875rem 1.375rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  text-decoration: none;
  cursor: pointer;
  transition: background-color .15s ease, border-color .15s ease, color .15s ease;
}
.btn--sm { padding: .625rem 1rem; font-size: .875rem; }
.btn--block { display: flex; width: 100%; }

.btn--primary { background: var(--accent); color: #fff; }
.btn--primary:hover { background: var(--accent-hov); }

.btn--outline {
  background: transparent;
  color: var(--text);
  border-color: var(--line-strong);
}
.btn--outline:hover { border-color: var(--text); }

.btn--ghost {
  background: transparent;
  color: var(--on-ink);
  border-color: var(--line-ink);
}
.btn--ghost:hover { border-color: var(--on-ink-mut); background: rgba(255,255,255,.04); }

/* ---------- 7. Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--ink);
  color: var(--on-ink);
  border-bottom: 1px solid var(--line-ink);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4.25rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: .625rem;
  text-decoration: none;
  color: inherit;
  flex: none;
}
.brand__mark { width: 28px; height: 28px; color: var(--accent-ink); flex: none; }
.brand__text { display: flex; flex-direction: column; line-height: 1.15; }
.brand__name {
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: -0.015em;
}
.brand__tagline {
  font-family: var(--mono);
  font-size: .625rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--on-ink-fnt);
}

.nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: .25rem;
}
.nav__list a {
  display: block;
  padding: .5rem .75rem;
  font-size: .875rem;
  color: var(--on-ink-mut);
  text-decoration: none;
  border-radius: var(--radius);
  transition: color .15s ease;
}
.nav__list a:hover { color: var(--on-ink); }
.nav__cta { margin-left: .5rem; }
.nav__cta a { color: #fff; }
.nav__cta a:hover { color: #fff; }

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  align-items: center;
  gap: .5rem;
  background: transparent;
  border: 1px solid var(--line-ink);
  border-radius: var(--radius);
  color: var(--on-ink);
  font: inherit;
  font-size: .8125rem;
  padding: .5rem .75rem;
  cursor: pointer;
}
.nav-toggle__bars { display: grid; gap: 3px; }
.nav-toggle__bars span {
  display: block;
  width: 15px; height: 1.5px;
  background: currentColor;
  transition: transform .18s ease, opacity .18s ease;
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1) { transform: translateY(4.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(3) { transform: translateY(-4.5px) rotate(-45deg); }

@media (max-width: 900px) {
  .nav-toggle { display: inline-flex; }
  .nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--ink);
    border-bottom: 1px solid var(--line-ink);
    padding: .5rem clamp(1.125rem, 4vw, 2.5rem) 1.25rem;
    display: none;
  }
  .nav.is-open { display: block; }
  .nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }
  .nav__list li { border-top: 1px solid var(--line-ink); }
  .nav__list a { padding: .875rem .25rem; font-size: 1rem; }
  .nav__cta { margin: .875rem 0 0; border-top: 0 !important; }
  .nav__cta a { padding: .875rem 1rem; justify-content: center; }
  /* The dropdown anchors to .site-header, which is already a containing block
     via position: sticky — the header stays sticky on mobile. */
}

/* ---------- 8. Hero ---------- */
.hero {
  background: var(--ink);
  color: var(--on-ink);
  padding-block: clamp(3rem, 7vw, 5.5rem) clamp(3.5rem, 8vw, 6rem);
  border-bottom: 1px solid var(--line-ink);
}
.hero__grid {
  display: grid;
  gap: clamp(2.5rem, 5vw, 4rem);
  align-items: start;
}
@media (min-width: 940px) {
  .hero__grid { grid-template-columns: minmax(0, 1.15fr) minmax(360px, .85fr); }
}

.hero h1 { color: #fff; margin-bottom: 1.25rem; max-width: 16ch; }
.hero__lede {
  font-size: clamp(1.0625rem, 1rem + .3vw, 1.1875rem);
  color: var(--on-ink-mut);
  max-width: 56ch;
  margin-bottom: 2rem;
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-bottom: 1.25rem;
}
.hero__actions .btn { flex: 1 1 auto; min-width: 12rem; }
@media (min-width: 560px) { .hero__actions .btn { flex: 0 0 auto; } }

.hero__note {
  font-size: .8125rem;
  color: var(--on-ink-fnt);
  border-left: 2px solid var(--line-ink);
  padding-left: .75rem;
  margin: 0;
}
.closing .hero__note {
  border-left: 0;
  border-top: 1px solid var(--line);
  padding: .875rem 0 0;
  color: var(--text-faint);
  display: inline-block;
  margin-top: 1.5rem;
}

/* Hero reference panel */
.panel {
  background: var(--ink-2);
  border: 1px solid var(--line-ink);
  border-radius: var(--radius-lg);
}
.panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: .875rem 1.25rem;
  border-bottom: 1px solid var(--line-ink);
}
.panel__title {
  font-size: .8125rem;
  font-family: var(--mono);
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--on-ink);
  margin: 0;
  font-weight: 500;
}
.panel__tag {
  font-family: var(--mono);
  font-size: .625rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--on-ink-fnt);
  border: 1px solid var(--line-ink);
  border-radius: 3px;
  padding: .1875rem .4375rem;
}
.panel__rows { margin: 0; }
.panel__row {
  padding: .9375rem 1.25rem;
  border-bottom: 1px solid var(--line-ink);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: .25rem .75rem;
  align-items: center;
}
.panel__row dt {
  font-weight: 600;
  font-size: .9375rem;
  color: #fff;
}
.panel__row dd { margin: 0; }
.panel__desc {
  grid-column: 1 / -1;
  font-size: .8125rem;
  line-height: 1.5;
  color: var(--on-ink-fnt);
}
.badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: .625rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: .25rem .5rem;
  border-radius: 3px;
  border: 1px solid var(--line-ink);
  color: var(--on-ink-mut);
  white-space: nowrap;
}
.badge--accent { color: var(--accent-ink); border-color: rgba(223,161,99,.35); }
.panel__foot {
  padding: .875rem 1.25rem;
  margin: 0;
  font-size: .8125rem;
  color: var(--on-ink-mut);
}

/* ---------- 9. Positioning statement ---------- */
.statement {
  border-left: 3px solid var(--accent);
  padding: .25rem 0 .25rem clamp(1.25rem, 3vw, 2.25rem);
  max-width: 74ch;
}
.statement h2 { margin-bottom: .875rem; }
.statement p { font-size: 1.0625rem; }
.statement__meta {
  font-size: .875rem !important;
  color: var(--text-muted);
  border-top: 1px solid var(--line);
  padding-top: 1rem;
  margin-top: 1.25rem !important;
}

/* ---------- 10. Tiles / features ---------- */
.tile, .feature {
  background: var(--paper);
  padding: 1.75rem clamp(1.25rem, 2.5vw, 1.75rem);
}
.section--alt .tile, .section--alt .feature { background: var(--paper); }
.tile h3, .feature h3 { margin-bottom: .5rem; }
.tile p, .feature p {
  margin: 0;
  color: var(--text-muted);
  font-size: .9375rem;
}
.tile h3 {
  padding-bottom: .75rem;
  border-bottom: 1px solid var(--line);
  margin-bottom: .875rem;
}
.feature h3 { font-size: 1rem; }
.feature p { font-size: .875rem; }

/* ---------- 11. Split layouts ---------- */
.split { display: grid; gap: clamp(2rem, 4vw, 3.5rem); }
@media (min-width: 940px) {
  .split { grid-template-columns: minmax(0, 1.4fr) minmax(280px, 1fr); }
  .split--even, .split--form { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
.split--even > div > h2:first-child { margin-top: 0; }

.keyfacts {
  border: 1px solid var(--line);
  background: var(--paper);
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  position: sticky;
  top: 6rem;
}
.keyfacts__title {
  font-family: var(--mono);
  font-size: .75rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 500;
  padding-bottom: .875rem;
  border-bottom: 1px solid var(--line);
  margin-bottom: 1rem;
}
.keyfacts dl { margin: 0; }
.keyfacts dt {
  font-weight: 600;
  font-size: .9375rem;
  margin-top: 1rem;
}
.keyfacts dt:first-child { margin-top: 0; }
.keyfacts dd {
  margin: .1875rem 0 0;
  font-size: .875rem;
  color: var(--text-muted);
  line-height: 1.55;
}
@media (max-width: 939px) { .keyfacts { position: static; } }

/* ---------- 12. Lists ---------- */
.list {
  margin: 0 0 1.15rem;
  padding: 0;
  list-style: none;
  max-width: 68ch;
}
.list li {
  position: relative;
  padding-left: 1.375rem;
  margin-bottom: .625rem;
  font-size: .9375rem;
  color: var(--text-muted);
}
.list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .6875em;
  width: 6px;
  height: 1px;
  background: var(--line-strong);
}
.list--check li::before,
.list--cross li::before {
  content: "";
  top: .5em;
  width: 9px;
  height: 5px;
  background: none;
  border-left: 1.5px solid var(--ok);
  border-bottom: 1.5px solid var(--ok);
  transform: rotate(-45deg);
}
.list--cross li::before {
  width: 9px; height: 9px;
  border: 0;
  transform: none;
  top: .55em;
  background:
    linear-gradient(to bottom right, transparent 44%, var(--danger) 44%, var(--danger) 56%, transparent 56%),
    linear-gradient(to bottom left,  transparent 44%, var(--danger) 44%, var(--danger) 56%, transparent 56%);
}

.callout {
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  background: var(--paper);
  padding: 1.125rem 1.25rem;
  font-size: .9375rem;
  color: var(--text-muted);
  border-radius: 0 var(--radius) var(--radius) 0;
  max-width: 68ch;
}
.section--alt .callout { background: var(--paper); }

.notice {
  border: 1px solid var(--line-strong);
  background: var(--paper-2);
  padding: 1.375rem 1.5rem;
  border-radius: var(--radius-lg);
  margin-top: 2rem;
}
.notice__title {
  font-family: var(--mono);
  font-size: .75rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: .625rem;
}
.notice p { margin: 0; font-size: .9375rem; color: var(--text-muted); }

/* ---------- 13. Steps ---------- */
.steps {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
@media (min-width: 700px)  { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1040px) { .steps { grid-template-columns: repeat(4, 1fr); } }

.step {
  background: var(--paper);
  padding: 1.75rem clamp(1.25rem, 2.5vw, 1.625rem) 1.875rem;
}
.step__num {
  display: block;
  font-family: var(--mono);
  font-size: .8125rem;
  letter-spacing: .08em;
  color: var(--accent);
  margin-bottom: 1.25rem;
}
.step h3 { margin-bottom: .5rem; }
.step p { margin: 0; font-size: .875rem; color: var(--text-muted); }

/* ---------- 14. Compare ---------- */
.compare {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-top: 1.5rem;
  overflow: hidden;
}
@media (min-width: 520px) { .compare { grid-template-columns: repeat(2, 1fr); } }
.compare__col { background: var(--paper); padding: 1.25rem; }
.compare__title {
  font-family: var(--mono);
  font-size: .6875rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  font-weight: 500;
  margin-bottom: .875rem;
}
.compare__title--yes { color: var(--ok); }
.compare__title--no  { color: var(--danger); }
.compare .list { margin: 0; }
.compare .list li { font-size: .875rem; margin-bottom: .5rem; }
.compare .list li:last-child { margin-bottom: 0; }

/* ---------- 15. Pricing ---------- */
.pricing { gap: 1px; background: var(--line); border: 1px solid var(--line); }
.plan {
  background: var(--paper);
  padding: 1.875rem clamp(1.25rem, 2.5vw, 1.75rem);
  display: flex;
  flex-direction: column;
}
.plan--mid { background: var(--paper-2); }
.plan__name { font-size: 1.125rem; margin-bottom: .375rem; }
.plan__for {
  font-size: .875rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  min-height: 2.6em;
}
.plan__price {
  font-family: var(--mono);
  font-size: 1.0625rem;
  color: var(--text);
  padding: .875rem 0;
  border-block: 1px solid var(--line);
  margin-bottom: 1.25rem;
}
.plan__list { flex: 1; margin-bottom: 1.5rem; }
.plan__list li { font-size: .875rem; }

/* ---------- 16. Form section ---------- */
.section--form {
  background: var(--ink);
  color: var(--on-ink);
  border-block: 1px solid var(--line-ink);
}
.section--form h2 { color: #fff; }
.section--form .form-intro > p { color: var(--on-ink-mut); }

.security-note, .demo-note {
  border: 1px solid var(--line-ink);
  border-radius: var(--radius-lg);
  padding: 1.125rem 1.25rem;
  margin-top: 1.5rem;
}
.security-note { border-left: 3px solid var(--accent-ink); }
.security-note__title, .demo-note__title {
  font-family: var(--mono);
  font-size: .6875rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--on-ink-mut);
  font-weight: 500;
  margin-bottom: .625rem;
}
.security-note p, .demo-note p {
  font-size: .875rem;
  color: var(--on-ink-mut);
  margin-bottom: .625rem;
}
.security-note p:last-child, .demo-note p:last-child { margin-bottom: 0; }
.security-note strong { color: #fff; }
.security-note code { background: var(--ink-3); color: var(--accent-ink); }

/* Form */
.form {
  background: var(--ink-2);
  border: 1px solid var(--line-ink);
  border-radius: var(--radius-lg);
  padding: clamp(1.25rem, 3vw, 2rem);
}
.field { margin-bottom: 1.25rem; }
.field-row { display: grid; gap: 1.25rem; }
@media (min-width: 560px) { .field-row { grid-template-columns: repeat(2, 1fr); } }

.form label {
  display: block;
  font-size: .875rem;
  font-weight: 500;
  color: var(--on-ink);
  margin-bottom: .4375rem;
}
.req { color: var(--accent-ink); }
.optional { color: var(--on-ink-fnt); font-weight: 400; }

.form input,
.form select,
.form textarea {
  width: 100%;
  font: inherit;
  font-size: .9375rem;
  color: var(--on-ink);
  background: var(--ink);
  border: 1px solid var(--line-ink);
  border-radius: var(--radius);
  padding: .75rem .875rem;
  transition: border-color .15s ease;
}
.form input::placeholder, .form textarea::placeholder { color: var(--on-ink-fnt); }
.form input:hover, .form select:hover, .form textarea:hover { border-color: #3C444C; }
.form textarea { resize: vertical; min-height: 6rem; }
.form select {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--on-ink-mut) 50%),
                    linear-gradient(135deg, var(--on-ink-mut) 50%, transparent 50%);
  background-position: calc(100% - 18px) calc(50% + 1px), calc(100% - 13px) calc(50% + 1px);
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  padding-right: 2.5rem;
}
.form input[type="number"] { -moz-appearance: textfield; }
.form input[type="number"]::-webkit-outer-spin-button,
.form input[type="number"]::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }

.hint {
  margin: .4375rem 0 0;
  font-size: .8125rem;
  color: var(--on-ink-fnt);
}
.error {
  margin: .4375rem 0 0;
  font-size: .8125rem;
  color: #F0958D;
  display: flex;
  gap: .375rem;
}
/* `display: flex` above outranks the UA rule for [hidden], so restore it. */
.error[hidden] { display: none; }
.error::before { content: "!"; font-weight: 700; }
.field.has-error input,
.field.has-error select,
.field.has-error textarea { border-color: #B4544B; }

.form .btn--primary { margin-top: .25rem; padding-block: 1rem; }
.form__foot {
  margin: 1rem 0 0;
  font-size: .8125rem;
  color: var(--on-ink-fnt);
}
.form__foot a { color: var(--on-ink-mut); }

.form-status:empty { display: none; }
.form-status {
  margin-top: 1.25rem;
  border-radius: var(--radius);
  padding: 1rem 1.125rem;
  font-size: .875rem;
  border: 1px solid;
}
.form-status--ok {
  border-color: rgba(109,190,140,.35);
  background: rgba(47,109,70,.14);
  color: #C7E6D3;
}
.form-status--err {
  border-color: rgba(180,84,75,.5);
  background: rgba(163,43,35,.14);
  color: #F0BDB8;
}
.form-status strong { display: block; margin-bottom: .25rem; color: #fff; }
.form-status p { margin: 0; font-size: .875rem; }

/* ---------- 17. FAQ ---------- */
.faq { border-top: 1px solid var(--line); }
.faq__item { border-bottom: 1px solid var(--line); }
.faq__q { margin: 0; font-size: inherit; font-weight: inherit; }
.faq__btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  background: none;
  border: 0;
  padding: 1.25rem .25rem;
  font: inherit;
  font-size: 1.0625rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--text);
  text-align: left;
  cursor: pointer;
}
.faq__btn:hover { color: var(--accent); }
.faq__icon {
  position: relative;
  flex: none;
  width: 12px;
  height: 12px;
}
.faq__icon::before, .faq__icon::after {
  content: "";
  position: absolute;
  background: currentColor;
  transition: transform .2s ease, opacity .2s ease;
}
.faq__icon::before { left: 0; top: 5.25px; width: 12px; height: 1.5px; }
.faq__icon::after  { top: 0; left: 5.25px; width: 1.5px; height: 12px; }
.faq__btn[aria-expanded="true"] .faq__icon::after { transform: rotate(90deg); opacity: 0; }

.faq__panel { padding: 0 .25rem 1.5rem; }
.faq__panel p {
  margin: 0;
  color: var(--text-muted);
  font-size: .9375rem;
  max-width: 74ch;
}

/* ---------- 18. Closing ---------- */
.closing { border-top: 1px solid var(--line); }
.closing h2 { margin-bottom: .75rem; }
.closing > .container > p { color: var(--text-muted); }

/* ---------- 19. Footer ---------- */
.site-footer {
  background: var(--ink);
  color: var(--on-ink-mut);
  padding-top: clamp(2.5rem, 5vw, 3.75rem);
  font-size: .875rem;
}
.footer__grid {
  display: grid;
  gap: 2.25rem;
  padding-bottom: 2.5rem;
}
@media (min-width: 700px) {
  .footer__grid { grid-template-columns: 1.6fr 1fr 1fr; gap: 3rem; }
}
.footer__brand .brand__mark { width: 26px; height: 26px; color: var(--accent-ink); margin-bottom: .75rem; }
.footer__name {
  color: #fff;
  font-size: 1.0625rem;
  font-weight: 600;
  margin: 0 0 .25rem;
  letter-spacing: -0.015em;
}
.footer__tag { margin: 0; color: var(--on-ink-fnt); }

.footer__heading {
  font-family: var(--mono);
  font-size: .6875rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--on-ink-fnt);
  font-weight: 500;
  margin-bottom: .875rem;
}
.footer__nav ul { list-style: none; margin: 0; padding: 0; }
.footer__nav li { margin-bottom: .5rem; }
.footer__nav a { color: var(--on-ink-mut); text-decoration: none; }
.footer__nav a:hover { color: #fff; text-decoration: underline; text-underline-offset: 3px; }

.footer__legal {
  border-top: 1px solid var(--line-ink);
  padding-block: 1.75rem 2.25rem;
}
.footer__legal p {
  font-size: .8125rem;
  line-height: 1.6;
  color: var(--on-ink-fnt);
  max-width: 92ch;
  margin-bottom: .875rem;
}
.footer__legal strong { color: var(--on-ink-mut); }
.footer__copy { margin-bottom: 0 !important; }

/* ---------- 20. Legal / content pages ---------- */
.page-head {
  background: var(--ink);
  color: var(--on-ink);
  padding-block: clamp(2.75rem, 6vw, 4.25rem);
  border-bottom: 1px solid var(--line-ink);
}
.page-head h1 { color: #fff; font-size: clamp(1.75rem, 1.3rem + 2vw, 2.75rem); max-width: none; }
.page-head p { color: var(--on-ink-mut); margin: 0; }
.page-head .eyebrow { color: var(--on-ink-mut); }

.prose { padding-block: var(--sect-y); }
.prose h2 {
  font-size: clamp(1.25rem, 1.1rem + .6vw, 1.5rem);
  margin-top: 2.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
}
.prose h2:first-of-type { margin-top: 0; border-top: 0; padding-top: 0; }
.prose h3 { margin-top: 1.75rem; }
.prose p, .prose li { color: var(--text-muted); }
.prose > p:first-child { color: var(--text); font-size: 1.0625rem; }

.prose a { color: var(--accent); text-underline-offset: 3px; }
.prose a:hover { color: var(--accent-hov); }

.contact-grid { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); margin-block: 2rem; }
@media (min-width: 640px) { .contact-grid { grid-template-columns: repeat(2, 1fr); } }
.contact-card { background: var(--paper); padding: 1.5rem; }
.contact-card h3 { margin-bottom: .5rem; }
.contact-card p { margin: 0; font-size: .9375rem; }

.backlink {
  display: inline-block;
  margin-top: 2.5rem;
  font-size: .9375rem;
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

/* ---------- 21. Motion preferences ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
}

/* ---------- 22. Print ---------- */
@media print {
  .site-header, .nav-toggle, .hero__actions, .form, .closing { display: none; }
  body { background: #fff; color: #000; }
  .faq__panel { display: block !important; }
}