/* ==========================================================================
   Appalachian Tool & Machine, Inc. — Modern Mechanical UI
   Brand palette preserved: deep blue, cream, graphite.
   ========================================================================== */

:root {
  --blue-900: #0c3d5d;
  --blue-800: #0f4d78;
  --blue-700: #1761b5;
  --blue-600: #1779ba;
  --blue-500: #2d8fd8;
  --blue-300: #6fb8e8;

  --cream: #faf3dd;
  --cream-2: #f4ecd8;
  --graphite: #383838;
  --graphite-2: #22262a;
  --graphite-3: #14181c;

  --steel: #cacaca;
  --steel-dark: #8a8a8a;
  --white: #fefefe;
  --accent: #d8a24a;

  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 10px 30px rgba(0,0,0,.35);
  --shadow-soft: 0 4px 18px rgba(0,0,0,.18);
  --ease: cubic-bezier(.22,.8,.28,1);

  --font-display: "Barlow Condensed", "Raleway", system-ui, sans-serif;
  --font-body: "Inter", "Raleway", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Consolas, monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--graphite);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--blue-700); text-decoration: none; transition: color .2s var(--ease); }
a:hover { color: var(--blue-500); }

h1,h2,h3,h4 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: .02em;
  line-height: 1.15;
  margin: 0 0 .5em;
}
h1 { font-size: clamp(1.9rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.5rem, 3.6vw, 2.5rem); }
h3 { font-size: clamp(1.15rem, 2.4vw, 1.6rem); }
h4 { font-size: clamp(1rem, 2vw, 1.25rem); }
p { margin: 0 0 1em; }

hr {
  border: 0; height: 3px; width: 90px;
  background: var(--blue-600);
  margin: 18px auto; border-radius: 2px;
}
::selection { background: var(--blue-600); color: var(--cream); }

/* ------------------------------ Layout ------------------------------- */
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 900px; }
section { padding: 64px 0; position: relative; }
section.tight { padding: 40px 0; }
.grid { display: grid; gap: 22px; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.text-center { text-align: center; }

/* ------------------------------ Header ------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 60;
  background: rgba(12,61,93,.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(111,184,232,.22);
  transition: background .3s var(--ease), box-shadow .3s var(--ease);
}
.site-header.scrolled { background: rgba(10,30,48,.98); box-shadow: 0 8px 24px rgba(0,0,0,.45); }
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; padding: 12px 24px; max-width: 1200px; margin: 0 auto;
}
.brand { display: flex; align-items: center; gap: 12px; min-width: 0; }
.brand img { height: 42px; width: auto; }
.brand-name {
  font-family: var(--font-display); font-size: 1.15rem; font-weight: 700;
  letter-spacing: .12em; color: var(--cream); text-transform: uppercase; white-space: nowrap;
}
.nav { display: flex; align-items: center; gap: 4px; }
.nav a {
  font-family: var(--font-display); font-size: .95rem; font-weight: 700;
  letter-spacing: .1em; text-transform: uppercase; color: var(--cream-2);
  padding: 10px 14px; border-radius: var(--radius-sm); position: relative;
}
.nav a:hover { color: var(--white); background: rgba(111,184,232,.12); }
.nav a.active { color: var(--white); }
.nav a.active::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 5px;
  height: 2px; background: var(--accent); border-radius: 2px;
}
.nav-toggle {
  display: none; background: transparent; border: 1px solid rgba(250,243,221,.35);
  color: var(--cream); border-radius: var(--radius-sm); padding: 9px 12px;
  font-size: 1.1rem; cursor: pointer;
}
.nav-toggle:hover { background: rgba(111,184,232,.15); }

/* ------------------------------- Hero -------------------------------- */
.hero {
  position: relative; min-height: 78vh; display: flex; align-items: center;
  overflow: hidden; background: var(--blue-900); isolation: isolate;
}
.hero-media {
  position: absolute; inset: 0;
  background: url("../img/home-hero-bg.webp") center center / cover no-repeat;
  opacity: .55; z-index: -3;
}
.hero-scrim {
  position: absolute; inset: 0; z-index: -2;
  background: linear-gradient(160deg, rgba(12,61,93,.88) 0%, rgba(12,61,93,.55) 45%, rgba(20,24,28,.82) 100%);
}
.particle-field { position: absolute; inset: 0; width: 100%; height: 100%; display: block; z-index: 0; pointer-events: none; }
.hero-copy { position: relative; z-index: 1; width: 100%; padding: 40px 0; }
.eyebrow {
  font-family: var(--font-mono); font-size: .78rem; letter-spacing: .28em;
  text-transform: uppercase; color: var(--blue-300); margin-bottom: 14px;
}
.hero h1 { color: var(--cream); text-shadow: 0 2px 26px rgba(0,0,0,.55); margin-bottom: .35em; }
.hero .lede {
  color: var(--cream-2); font-size: clamp(1rem, 2.2vw, 1.28rem);
  max-width: 62ch; margin: 0 auto 26px;
}
.hero-stats {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(140px,1fr));
  gap: 14px; margin-top: 30px;
}
.stat {
  background: rgba(8,28,44,.62); border: 1px solid rgba(111,184,232,.3);
  border-radius: var(--radius); padding: 16px 18px; text-align: center;
  backdrop-filter: blur(6px);
}
.stat .value {
  font-family: var(--font-display); font-size: clamp(1.5rem,3.4vw,2.1rem);
  font-weight: 700; color: var(--cream); display: block;
}
.stat .label {
  font-family: var(--font-mono); font-size: .72rem; letter-spacing: .14em;
  text-transform: uppercase; color: var(--blue-300);
}

/* --------------------------- Page hero ------------------------------- */
.page-hero {
  position: relative; padding: 92px 0 72px; background: var(--blue-900);
  overflow: hidden; isolation: isolate;
}
.page-hero .hero-scrim { z-index: -2; }
.page-hero h1 { color: var(--cream); position: relative; z-index: 1; }
.page-hero p { color: var(--cream-2); position: relative; z-index: 1; }

/* ------------------------- Buttons / cards --------------------------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-display); font-size: 1rem; font-weight: 700;
  letter-spacing: .08em; text-transform: uppercase;
  padding: 14px 26px; border-radius: var(--radius-sm);
  background: var(--blue-700); color: var(--white);
  border: 1px solid transparent; cursor: pointer;
  transition: background .2s var(--ease), transform .2s var(--ease), box-shadow .2s var(--ease);
}
.btn:hover { background: var(--blue-500); color: var(--white); transform: translateY(-2px); box-shadow: var(--shadow-soft); }
.btn-ghost { background: transparent; border: 1px solid rgba(250,243,221,.5); color: var(--cream); }
.btn-ghost:hover { background: rgba(250,243,221,.12); color: var(--white); }
.btn-accent { background: var(--accent); color: var(--graphite-3); }
.btn-accent:hover { background: #e6b463; color: var(--graphite-3); }

.card {
  background: var(--white); border: 1px solid var(--steel);
  border-radius: var(--radius); overflow: hidden;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
  display: flex; flex-direction: column;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--blue-300); }
.card img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
.card .card-body { padding: 20px 22px 24px; flex: 1; }
.card h4 { color: var(--blue-900); margin-bottom: .3em; }
.card p { font-size: .95rem; color: var(--steel-dark); margin: 0; }

.card-dark { background: rgba(20,24,28,.85); border: 1px solid rgba(111,184,232,.28); color: var(--cream-2); }
.card-dark h4 { color: var(--cream); }

.icon-card {
  background: var(--white); border: 1px solid var(--steel);
  border-top: 3px solid var(--blue-700); border-radius: var(--radius);
  padding: 26px 22px; text-align: center;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease);
}
.icon-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-soft); }
.icon-card img { height: 58px; width: auto; margin: 0 auto 14px; }
.icon-card h4 { color: var(--blue-900); font-size: 1.05rem; }

/* --------------------------- Section bands --------------------------- */
.band-blue { background: var(--blue-900); color: var(--cream-2); }
.band-blue h2, .band-blue h3 { color: var(--cream); }
.band-graphite { background: var(--graphite-3); color: var(--cream-2); }
.band-graphite h2, .band-graphite h3 { color: var(--cream); }
.band-cream { background: var(--cream); }
.band-steel { background: #f4f6f8; }

/* ------------------------ Equipment tables --------------------------- */
.equip-tabs {
  display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 26px;
  position: sticky; top: 70px; z-index: 20; padding: 10px;
  background: rgba(244,246,248,.95); border-radius: var(--radius); border: 1px solid var(--steel);
}
.equip-tabs button {
  font-family: var(--font-display); font-size: .9rem; font-weight: 700;
  letter-spacing: .06em; text-transform: uppercase; padding: 9px 16px;
  border-radius: 999px; border: 1px solid var(--steel); background: var(--white);
  color: var(--graphite); cursor: pointer; transition: all .2s var(--ease); white-space: nowrap;
}
.equip-tabs button:hover { border-color: var(--blue-600); color: var(--blue-700); }
.equip-tabs button[aria-selected="true"] { background: var(--blue-700); border-color: var(--blue-700); color: var(--white); }

.equip-panel { display: none; animation: fadeUp .45s var(--ease) both; }
.equip-panel.is-active { display: block; }

table.machines { width: 100%; border-collapse: collapse; margin-bottom: 28px; font-size: .95rem; }
table.machines caption {
  caption-side: top; text-align: left; font-family: var(--font-display);
  font-size: 1.15rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  color: var(--blue-900); padding-bottom: 10px; border-bottom: 2px solid var(--blue-700);
}
table.machines th, table.machines td { padding: 12px 14px; text-align: left; border-bottom: 1px solid var(--steel); }
table.machines thead th {
  background: var(--graphite-3); color: var(--cream); font-family: var(--font-mono);
  font-size: .74rem; letter-spacing: .12em; text-transform: uppercase; border-bottom: 0;
}
table.machines tbody tr { transition: background .18s var(--ease); }
table.machines tbody tr:hover { background: rgba(23,97,181,.06); }
table.machines td.model { font-weight: 600; color: var(--graphite); }
table.machines td.spec { font-family: var(--font-mono); font-size: .88rem; color: var(--blue-800); white-space: nowrap; }
table.machines td.note { color: var(--steel-dark); font-size: .9rem; }

.tag {
  display: inline-block; font-family: var(--font-mono); font-size: .7rem;
  letter-spacing: .08em; text-transform: uppercase; padding: 3px 8px;
  border-radius: 4px; background: rgba(23,97,181,.12); color: var(--blue-800);
  border: 1px solid rgba(23,97,181,.3); margin-left: 6px; vertical-align: middle;
}
.tag.dual { background: rgba(216,162,74,.14); color: #805700; border-color: rgba(216,162,74,.45); }
.tag.swiss { background: rgba(130,209,115,.14); color: #157539; border-color: rgba(130,209,115,.45); }

/* ----------------------- Capability / feature blocks ----------------- */
.feature {
  background: var(--white); border: 1px solid var(--steel);
  border-left: 4px solid var(--blue-700); border-radius: var(--radius);
  padding: 22px 24px;
}
.feature h4 { color: var(--blue-900); margin-bottom: .35em; }
.feature p { color: var(--steel-dark); font-size: .95rem; margin: 0; }
.feature .num {
  font-family: var(--font-mono); font-size: .72rem; letter-spacing: .2em;
  color: var(--blue-600); text-transform: uppercase; display: block; margin-bottom: 8px;
}

.envelope {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(210px,1fr)); gap: 18px;
}
.env-item {
  background: rgba(8,28,44,.5); border: 1px solid rgba(111,184,232,.28);
  border-radius: var(--radius); padding: 22px; text-align: center;
}
/* headline capability card: Ø70 turning — spans two columns, bigger type */
.env-item.env-hero {
  grid-column: span 2;
  background: rgba(23,97,181,.22);
  border-color: rgba(216,162,74,.55);
  position: relative;
}
.env-item.env-hero .big {
  font-size: clamp(2.6rem,6vw,4rem);
  color: var(--cream);
}
.env-item.env-hero .desc { color: var(--accent); }
.env-item.env-hero::after {
  content: ""; position: absolute; inset: 6px;
  border: 1px dashed rgba(216,162,74,.25); border-radius: var(--radius);
  pointer-events: none;
}
.env-item .big {
  font-family: var(--font-display); font-size: clamp(1.6rem,3.6vw,2.4rem);
  color: var(--cream); font-weight: 700; display: block; line-height: 1;
}
.env-item .desc {
  font-family: var(--font-mono); font-size: .74rem; letter-spacing: .12em;
  text-transform: uppercase; color: var(--blue-300); margin-top: 8px;
}
.env-item .sub { color: var(--cream-2); font-size: .85rem; margin-top: 6px; opacity: .8; }

.industries { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }
.industry {
  font-family: var(--font-display); font-size: 1.05rem; font-weight: 700;
  letter-spacing: .1em; text-transform: uppercase; color: var(--cream);
  border: 2px solid rgba(111,184,232,.45); border-radius: var(--radius-sm);
  padding: 16px 30px; transition: all .25s var(--ease);
}
.industry:hover { background: rgba(111,184,232,.14); border-color: var(--blue-300); }

/* -------------------------- Contact / forms -------------------------- */
.contact-card {
  background: var(--white); border: 1px solid var(--steel);
  border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow-soft);
}
.contact-card h3 { color: var(--blue-900); margin-bottom: 1em; }
.contact-line { display: flex; gap: 12px; align-items: flex-start; margin-bottom: 18px; }
.contact-line .k {
  font-family: var(--font-mono); font-size: .72rem; letter-spacing: .14em;
  text-transform: uppercase; color: var(--blue-600); min-width: 90px; padding-top: 3px;
}
.contact-line .v { color: var(--graphite); }
.contact-line .v a { font-weight: 600; }

form.contact-form { display: grid; gap: 16px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field label {
  font-family: var(--font-mono); font-size: .72rem; letter-spacing: .14em;
  text-transform: uppercase; color: var(--blue-800);
}
.field input, .field textarea, .field select {
  font-family: var(--font-body); font-size: 1rem; padding: 12px 14px;
  border: 1px solid var(--steel); border-radius: var(--radius-sm);
  background: #fff; color: var(--graphite); width: 100%;
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none; border-color: var(--blue-600); box-shadow: 0 0 0 3px rgba(23,121,186,.18);
}
.field textarea { min-height: 130px; resize: vertical; }
.form-note { font-size: .82rem; color: var(--steel-dark); }
.form-status {
  font-size: .95rem; padding: 12px 14px; border-radius: var(--radius-sm);
  display: none; border: 1px solid transparent;
}
.form-status.ok { display: block; background: rgba(130,209,115,.15); border-color: #157539; color: #157539; }
.form-status.err { display: block; background: rgba(204,75,55,.12); border-color: #a53b2a; color: #a53b2a; }

/* ------------------------------- Footer ------------------------------ */
.site-footer { background: var(--graphite-3); color: var(--cream-2); padding: 56px 0 34px; }
.site-footer a { color: var(--cream-2); }
.site-footer a:hover { color: var(--white); }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px,1fr)); gap: 30px; }
.footer-col h4 {
  font-family: var(--font-mono); font-size: .74rem; letter-spacing: .16em;
  text-transform: uppercase; color: var(--blue-300); margin-bottom: 12px;
}
.footer-col p, .footer-col li { font-size: .9rem; line-height: 1.75; color: var(--cream-2); }
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-bottom {
  margin-top: 34px; padding-top: 22px; border-top: 1px solid rgba(111,184,232,.2);
  display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between;
  font-size: .82rem; color: var(--steel-dark);
}
.footer-map { width: 100%; max-width: 380px; border-radius: var(--radius-sm); border: 1px solid rgba(111,184,232,.25); }
.footer-map iframe { width: 100%; height: 220px; border: 0; display: block; }

/* --------------------------- Reveal animation ------------------------ */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: translateY(0); }

@keyframes fadeUp { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: translateY(0); } }
@keyframes spinSlow { to { transform: rotate(360deg); } }

/* machined gear divider */
.gear-divider {
  height: 3px; background: repeating-linear-gradient(90deg,
    var(--blue-600) 0 18px, rgba(111,184,232,.25) 18px 34px);
  opacity: .55;
}

/* ----------------------------- Responsive ---------------------------- */
@media (max-width: 900px) {
  .nav { display: none; }
  .nav-toggle { display: block; }
  .nav.open {
    display: flex; flex-direction: column; position: absolute;
    top: 100%; left: 0; right: 0; background: rgba(10,30,48,.99);
    padding: 10px; border-bottom: 1px solid rgba(111,184,232,.25);
  }
  .nav.open a { padding: 12px 16px; border-radius: var(--radius-sm); }
  .header-inner { position: relative; }
  .brand-name { font-size: .95rem; letter-spacing: .08em; }
  .brand img { height: 34px; }
  .brand { flex: 1 1 auto; min-width: 0; overflow: hidden; }
  .brand-name { overflow: hidden; text-overflow: ellipsis; }
  section { padding: 46px 0; }
  .hero { min-height: 62vh; }
  .equip-tabs { position: static; }
  .footer-map { max-width: 100%; }
}

@media (max-width: 600px) {
  .container { padding: 0 16px; }
  .header-inner { padding: 10px 16px; }
  .brand-name { display: none; }
  .brand img { height: 30px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  /* headline envelope card must not force a narrow 2-col split on phones */
  .env-item.env-hero { grid-column: span 1; }
  .env-item.env-hero .big { font-size: clamp(2rem, 9vw, 2.8rem); }
  table.machines { font-size: .86rem; }
  table.machines th, table.machines td { padding: 9px 8px; }
  table.machines td.spec { white-space: normal; }
  .contact-line { flex-direction: column; gap: 4px; }
  .contact-line .k { min-width: 0; }
  .grid { gap: 14px; }
}

/* mobile card-stacked tables */
@media (max-width: 640px) {
  table.machines thead { display: none; }
  table.machines tbody tr {
    display: grid; grid-template-columns: 1fr; gap: 2px;
    padding: 12px 0; border-bottom: 1px solid var(--steel);
  }
  table.machines tbody td { border: 0; padding: 4px 0; }
  table.machines tbody td::before {
    content: attr(data-label);
    font-family: var(--font-mono); font-size: .66rem; letter-spacing: .12em;
    text-transform: uppercase; color: var(--steel-dark);
    display: block; margin-bottom: 2px;
  }
  table.machines tbody td.empty { display: none; }
}

/* ============================ FAQ =================================== */
.faq { display: grid; gap: 18px; margin-top: 22px; }
.faq-item {
  background: rgba(250,243,221,.06);
  border: 1px solid rgba(111,184,232,.22);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 20px 22px;
}
.faq-item h4 {
  font-family: var(--font-display); font-size: 1.15rem; letter-spacing: .02em;
  color: var(--cream); margin: 0 0 8px;
}
.faq-item p { margin: 0; color: rgba(250,243,221,.82); line-height: 1.62; }

/* ============================ Cutting animation ===================== */
.cut-field {
  position: absolute; inset: 0; width: 100%; height: 100%;
  display: block; z-index: 0; pointer-events: none;
  opacity: .82;
}

/* ======================== Mechanical detailing ====================== */
/* machined corner ticks — subtle engineering marks on cards & sections */
.tick-frame { position: relative; }
.tick-frame::before,
.tick-frame::after {
  content: ""; position: absolute; width: 14px; height: 14px;
  border: 1px solid var(--blue-300); opacity: .5; pointer-events: none;
}
.tick-frame::before { top: 8px; left: 8px; border-right: 0; border-bottom: 0; }
.tick-frame::after { bottom: 8px; right: 8px; border-left: 0; border-top: 0; }

/* hairline rule with a machined notch */
.rule-notch {
  position: relative; height: 1px; background: rgba(111,184,232,.28);
  margin: 34px 0;
}
.rule-notch::after {
  content: ""; position: absolute; left: 0; top: 0;
  width: 64px; height: 1px; background: var(--accent);
}

/* technical label strip (mono, letter-spaced) */
.spec-strip {
  font-family: var(--font-mono); font-size: .7rem; letter-spacing: .18em;
  text-transform: uppercase; color: var(--steel-dark);
  display: flex; flex-wrap: wrap; gap: 6px 18px; margin: 10px 0 0;
}
.spec-strip span { position: relative; padding-left: 12px; }
.spec-strip span::before {
  content: ""; position: absolute; left: 0; top: 50%; transform: translateY(-50%);
  width: 6px; height: 1px; background: var(--blue-300);
}

/* blueprint grid overlay for the capacity section */
.blueprint {
  position: relative; background: var(--blue-950);
  background-image:
    linear-gradient(rgba(111,184,232,.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(111,184,232,.08) 1px, transparent 1px);
  background-size: 32px 32px;
}

/* envelope dial — big capacity figure with a technical ring */
.envelope-dial { position: relative; text-align: center; }
.envelope-dial .dial-ring {
  width: 128px; height: 128px; margin: 0 auto 10px;
  border-radius: 50%; border: 2px solid rgba(111,184,232,.4);
  border-top-color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  position: relative;
}
.envelope-dial .dial-ring::after {
  content: ""; position: absolute; inset: 8px; border-radius: 50%;
  border: 1px dashed rgba(111,184,232,.28);
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .particle-field { display: none; }
  .cut-field { display: none; }
  html { scroll-behavior: auto; }
}

/* V3: editorial knowledge system and site-wide accessibility corrections. */
.skip-link{position:fixed;top:8px;left:16px;z-index:1000;padding:12px 20px;background:var(--cream);color:var(--blue-900);transform:translateY(-150%)}
.skip-link:focus{transform:none}
:focus-visible{outline:3px solid #b87e20;outline-offset:5px}
[id]{scroll-margin-top:100px}
.reveal{opacity:1;transform:none}
.card p,.feature p,.form-note,table.machines td.note{color:#58616a}
.form-note[style]{color:#58616a!important}
p a:not(.btn){text-decoration:underline;text-underline-offset:3px}
.feature h3,.icon-card h3,.card h3{color:var(--blue-900);font-size:1.25rem}
.faq-item h3{color:var(--blue-900);font-size:1.3rem}
.faq-item p{color:var(--graphite)}
.feature .num,.contact-line .k{color:var(--blue-800)}
.band-blue .eyebrow,.band-graphite .eyebrow,.page-hero .eyebrow{color:var(--blue-300)}
.band-blue .text-link,.band-graphite .text-link,.capacity-disclosure a,.env-item a{color:var(--cream);text-decoration:underline;text-underline-offset:4px}
.footer-bottom{color:#b5bdc5}
.footer-col h2{font-family:var(--font-mono);font-size:.78rem;line-height:1.5;letter-spacing:.1em;text-transform:uppercase;color:var(--blue-300)}
.text-link{font-weight:600;text-decoration:underline;text-underline-offset:4px}
.small-note{font-size:.86rem;line-height:1.6;color:#58616a;margin-top:12px}
.evidence-band{padding:36px 0;border-bottom:1px solid #ded5be}
.evidence-grid{display:grid;grid-template-columns:1.1fr 1.2fr 1fr;gap:32px;align-items:start}
.evidence-grid h2{font-size:2rem}
.evidence-grid p{margin-bottom:10px}
.evidence-grid .eyebrow{color:var(--blue-800)}
.eyebrow{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.13em;text-transform:uppercase;color:var(--blue-800);line-height:1.8}
.hero{flex-direction:column}
.capacity-disclosure{position:relative;z-index:1;color:var(--cream);font-size:.82rem;text-align:center;max-width:930px;padding-bottom:25px;margin-bottom:0}
.core-hero{background:var(--graphite-3);padding:80px 0;min-height:310px}
.core-hero>.container{position:relative;z-index:1;text-align:left;padding-right:45%}
.core-hero h1{font-size:clamp(2.5rem,5vw,4.2rem)}
.core-motif{position:absolute;right:3%;width:46%;max-width:580px;top:50%;transform:translateY(-50%);opacity:.8;pointer-events:none}
.technical-svg{display:block;width:100%;height:auto}
.knowledge-crosslink{border-top:1px solid #dae0e6}
.reading-links{display:grid;grid-template-columns:repeat(3,1fr);list-style:none;padding:0;gap:24px}
.reading-links a{display:block;font-weight:600;border-bottom:1px solid #b5c7d4;padding:14px 0}
.table-scroll{max-width:100%;overflow:auto;border:1px solid #bac8d2;border-radius:6px;margin:24px 0}
.capacity-table,.article-body table{border-collapse:collapse;width:100%;font-size:.9rem;min-width:620px}
.capacity-table td,.capacity-table th,.article-body td,.article-body th{padding:14px 16px;border-bottom:1px solid #ced6dc;text-align:left}
.capacity-table thead,.article-body thead{background:var(--blue-900);color:var(--cream)}
.capacity-note{background:#f3e7cc;border-left:3px solid #b7832d;padding:20px;margin-top:22px}
.breadcrumbs{display:flex;flex-wrap:wrap;gap:8px 12px;align-items:center;font-size:.76rem;color:#bbc9d2;margin-bottom:45px}
.breadcrumbs a{color:var(--blue-300)}
.wiki-hero{padding:32px 0 52px;border-bottom:1px solid #35434e;background:radial-gradient(ellipse at 90% 60%,#12364b,transparent 70%),var(--graphite-3)}
.wiki-hero-grid{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:45px}
.wiki-hero h1{font-size:clamp(2.5rem,4vw,3.7rem);line-height:1.04;color:var(--cream);max-width:18ch}
.wiki-hero .lede{font-size:1.05rem;line-height:1.8;color:#d9e0e4;max-width:57ch}
.wiki-hero .text-link{display:inline-block;font-size:.88rem;margin-top:22px}
.article-meta{display:flex;flex-wrap:wrap;gap:8px 22px;font-family:var(--font-mono);font-size:.67rem;color:#a9bdcb;margin-top:24px}
.wiki-figure{margin:0;border:1px solid #3b5668;border-radius:var(--radius);background:rgba(8,22,32,.5);padding:16px}
.wiki-figure figcaption{border-top:1px solid #344a59;padding:14px 8px 0;margin-top:10px;font-size:.76rem;line-height:1.7;color:#bacbd6}
.article-grid{display:grid;grid-template-columns:245px minmax(0,1fr);gap:70px;padding-top:60px;padding-bottom:64px}
.article-aside{align-self:start;position:sticky;top:100px;font-size:.82rem}
.article-aside ol{padding:0;list-style:none;margin:0;counter-reset:contents}
.article-aside li{counter-increment:contents;display:flex;border-bottom:1px solid #dce2e7;padding:11px 0;gap:12px}
.article-aside li:before{content:counter(contents,decimal-leading-zero);font-family:var(--font-mono);font-size:.65rem;color:#647586;padding-top:3px}
.article-aside a{color:var(--blue-900)}
.aside-shop{margin-top:32px;background:#f0f4f6;padding:18px;border-left:2px solid var(--blue-300)}
.aside-shop a{display:block;margin:12px 0;font-size:.78rem}
.article-body{max-width:770px;min-width:0;font-size:1rem;line-height:1.85}
.article-body section{padding:0;margin-bottom:42px}
.article-body h2{font-size:2rem;line-height:1.15;color:var(--blue-900);margin-bottom:19px}
.article-body h3{font-size:1.45rem;color:var(--blue-900);margin-top:28px}
.article-body p{margin-bottom:20px}
.article-body a{text-decoration:underline;text-underline-offset:3px}
.article-body a[href^="#source-"]{font-family:var(--font-mono);font-size:.7em;white-space:nowrap}
.article-body li{padding-left:3px;margin-bottom:10px}
.article-body ul,.article-body ol{padding-left:24px}
.article-faq{border-top:2px solid #b8cbd8;padding-top:32px!important}
.article-faq details{border-bottom:1px solid #cbd5dd;padding:16px 0}
.article-faq summary{font-weight:600;cursor:pointer;line-height:1.5;color:var(--blue-900)}
.article-faq details p{margin:16px 0 5px}
.article-sources{background:#f0f4f6;padding:26px!important;border-radius:var(--radius);font-size:.82rem;overflow-wrap:anywhere}
.article-sources h2{font-size:1.55rem}
.article-sources li:target{background:#f4e4ba}
.related-guides>a{display:block;padding:12px 0;border-bottom:1px solid #cbd5dd;font-weight:600}
.article-cta>.container{display:flex;align-items:center;justify-content:space-between;gap:45px}
.article-cta h2{font-size:clamp(2rem,4vw,3.3rem)}
.article-cta p{max-width:65ch}
.article-cta .btn{flex-shrink:0}
.knowledge-hub-hero{padding:32px 0 50px;background:radial-gradient(ellipse at top right,#144a66,transparent 70%),var(--graphite-3)}
.knowledge-hub-hero h1{font-size:clamp(3.4rem,7vw,6.3rem);line-height:.98;letter-spacing:-.01em;color:var(--cream)}
.knowledge-hub-hero h1 span{color:var(--blue-300)}
.knowledge-hub-hero .lede{font-size:1.14rem;max-width:62ch;margin-top:24px;color:#d4dfe6}
.hub-spec{display:flex;flex-wrap:wrap;gap:12px 30px;margin-top:32px;padding-top:20px;border-top:1px solid #3a4b58;font-family:var(--font-mono);font-size:.67rem;color:#bdcdd7;text-transform:uppercase;letter-spacing:.08em}
.hub-guides{padding-top:10px}
.guide-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.guide-card{display:block;border-radius:var(--radius);overflow:hidden;transition:border-color .2s,transform .2s}
.guide-card:hover{border-color:var(--accent);transform:translateY(-3px);color:var(--cream)}
.guide-card-art{background:#10212d;height:235px;overflow:hidden;border-bottom:1px solid #314855}
.guide-card-art svg{height:100%;width:100%}
.guide-card-copy{position:relative;padding:25px 30px 30px}
.guide-card-copy h2{font-size:2rem;padding-right:28px}
.guide-card-copy p:not(.eyebrow){font-size:.9rem;line-height:1.7;color:#bfcfd9;max-width:50ch;margin:0}
.guide-card .eyebrow{color:var(--blue-300);font-size:.65rem}
.guide-arrow{position:absolute;right:26px;top:51px;color:var(--accent);font-size:1.8rem}
.inquiry-origin{background:#f3e7cc;padding:12px;font-size:.85rem;color:var(--blue-900)}
.geometry-calculator{padding:28px!important;border:1px solid #b8cbd8;border-left:4px solid var(--accent);border-radius:var(--radius);background:#f3f6f8}
.geometry-calculator form{display:grid;gap:20px}
.geometry-inputs{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.geometry-calculator output{display:block;background:#102a3b;color:var(--cream);font-family:var(--font-mono);font-size:.8rem;line-height:1.9;padding:20px;border-radius:6px;overflow-wrap:anywhere}
[hidden]{display:none!important}
.motion-control{position:absolute;right:18px;bottom:14px;z-index:4;background:#14181c;color:#faf3dd;border:1px solid #6fb8e8;padding:7px 12px;border-radius:5px;font-size:.7rem;cursor:pointer}
@media(min-width:901px){.nav a{font-size:.84rem;padding:10px 9px}.brand img{height:39px}}
@media(max-width:1000px){.article-grid{grid-template-columns:200px minmax(0,1fr);gap:35px}.wiki-hero-grid{gap:25px}.article-cta>.container{flex-direction:column;align-items:flex-start}}
@media(max-width:760px){.wiki-hero-grid{grid-template-columns:1fr}.wiki-hero h1{max-width:20ch}.wiki-figure{max-width:600px}.article-grid{grid-template-columns:minmax(0,1fr);gap:35px;padding-top:32px}.article-aside{position:static}.article-aside ol{display:grid;grid-template-columns:1fr 1fr;gap:0 18px}.aside-shop{display:none}.article-body{max-width:100%}.article-body h2{font-size:1.8rem}.evidence-grid{grid-template-columns:1fr;gap:22px}.reading-links{grid-template-columns:1fr;gap:0}.core-hero>.container{padding-right:24px}.core-motif{position:relative;right:auto;top:auto;transform:none;width:85%;margin:20px auto -40px;max-height:240px;overflow:hidden}.core-hero{padding:50px 0}.guide-grid{grid-template-columns:1fr}.guide-card-art{height:215px}.breadcrumbs{margin-bottom:28px}.capacity-disclosure{padding-bottom:50px}.article-cta{padding:42px 0}}
@media(max-width:600px){.geometry-inputs{grid-template-columns:1fr}.geometry-calculator{padding:20px!important}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}.motion-control{display:none}.cut-field,.particle-field{display:none}}
@media print{.site-header,.site-footer,.article-aside,.article-cta,.related-guides{display:none}.article-grid{display:block}.wiki-hero{background:white;color:black}.wiki-hero h1,.wiki-hero p{color:black}.wiki-figure{display:none}.article-body{max-width:none}}