/* BOMs Away landing page. Brand colours come from branding/boms-away-*.svg. */

:root {
  --paper: #F5F7FA;
  --surface: #FFFFFF;
  --ink: #15264A;
  --steel: #5B6B86;
  --rule: #D5DCE6;
  --orange: #F97316;
  --orange-text: #C2410C;
  --navy: #15264A;
  --navy-2: #21386A;
  --on-navy: #EEF2F8;
  --on-navy-muted: #AFBCD3;
  --shot-shadow: #D9E1EC;

  --font: "Archivo", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --measure: 34rem;
  --gutter: clamp(16px, 4vw, 40px);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0F1B33;
    --surface: #16264A;
    --ink: #E8EDF5;
    --steel: #A3B1C8;
    --rule: #2A3B5E;
    --orange-text: #FB923C;
    --navy: #0A1428;
    --navy-2: #16264A;
    --shot-shadow: #0A1428;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #0F1B33;
  --surface: #16264A;
  --ink: #E8EDF5;
  --steel: #A3B1C8;
  --rule: #2A3B5E;
  --orange-text: #FB923C;
  --navy: #0A1428;
  --navy-2: #16264A;
  --shot-shadow: #0A1428;
  color-scheme: dark;
}

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

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; height: auto; }
b { font-weight: 650; }

a { color: inherit; text-underline-offset: 0.2em; }
a:focus-visible, .btn:focus-visible {
  outline: 3px solid var(--orange);
  outline-offset: 3px;
  border-radius: 4px;
}

h1, h2, h3 {
  font-stretch: 72%;
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.01em;
  margin: 0;
  text-wrap: balance;
}
h2 { font-size: clamp(2rem, 4.2vw, 3.1rem); }
h3 { font-size: clamp(1.45rem, 2.4vw, 1.85rem); }
p { margin: 0 0 1em; max-width: var(--measure); }

.wrap {
  width: 100%;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.skip {
  position: absolute;
  left: -999px;
  top: 8px;
  background: var(--surface);
  padding: 8px 12px;
  z-index: 10;
}
.skip:focus { left: 8px; }

/* Buttons */
.btn {
  display: inline-block;
  background: var(--orange);
  color: #15264A;
  font-weight: 700;
  font-stretch: 90%;
  text-decoration: none;
  padding: 0.8em 1.4em;
  border-radius: 6px;
  white-space: nowrap;
  box-shadow: inset 0 -3px 0 rgb(21 38 74 / 0.25);
}
.btn:hover { background: #FB8A3C; }
.btn-small { padding: 0.5em 0.95em; font-size: 0.95rem; }

/* Masthead */
.masthead {
  border-bottom: 1px solid var(--rule);
  background: var(--paper);
}
.masthead-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-block: 14px;
}
.wordmark {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 850;
  font-stretch: 80%;
  font-size: 1.45rem;
  letter-spacing: -0.01em;
}
.wordmark em { font-style: normal; color: var(--orange-text); }
.topnav { display: flex; align-items: center; gap: 22px; }
.topnav a:not(.btn) { text-decoration: none; color: var(--steel); font-weight: 500; }
.topnav a:not(.btn):hover { color: var(--ink); text-decoration: underline; }

/* Hero */
.hero { padding-top: clamp(40px, 7vw, 96px); }
.hero h1 {
  font-size: clamp(2.6rem, 7.4vw, 5.6rem);
  font-stretch: 66%;
  font-weight: 850;
  line-height: 0.95;
  max-width: 13ch;
}
.hero .wrap:first-child {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  gap: 24px 56px;
  align-items: end;
}
.hero-lede p { font-size: 1.15rem; }
.cta-row { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 20px; margin-top: 8px; }
.cta-row .cta-note { margin: 0; color: var(--steel); font-size: 0.95rem; }

/* Screenshots: a thin frame and an offset shadow, like a carton on a shelf */
.shot { margin: 0; }
.shot.wrap { margin-inline: auto; }
.shot a { display: block; border-radius: 8px; }
.shot img {
  border: 1px solid var(--rule);
  border-radius: 8px;
  background: #fff;
  box-shadow: 10px 10px 0 var(--shot-shadow);
}
.shot-hero { margin-top: clamp(36px, 5vw, 64px); margin-bottom: clamp(56px, 8vw, 110px); }
.shot-hero img { box-shadow: 16px 16px 0 var(--orange); }

/* Why: the bill of materials for running BOMs Away */
.why {
  background: var(--navy);
  color: var(--on-navy);
  padding-block: clamp(56px, 8vw, 110px);
}
.why-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.4fr);
  gap: 40px 64px;
  align-items: start;
}
.why-text h2 { margin-bottom: 20px; }
.why-text p { color: var(--on-navy-muted); }

.bom-wrap {
  background: var(--navy-2);
  border: 1px solid rgb(255 255 255 / 0.12);
  border-radius: 8px;
  padding: clamp(16px, 2.5vw, 28px);
}
.bom {
  width: 100%;
  border-collapse: collapse;
  font-variant-numeric: tabular-nums;
  font-size: 0.98rem;
}
.bom caption {
  text-align: left;
  font-weight: 700;
  font-stretch: 80%;
  font-size: 1.15rem;
  padding-bottom: 12px;
}
.bom th {
  text-align: left;
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--on-navy-muted);
  border-bottom: 1px solid rgb(255 255 255 / 0.25);
  padding: 6px 10px 8px;
}
.bom td {
  padding: 7px 10px;
  border-bottom: 1px solid rgb(255 255 255 / 0.08);
  vertical-align: top;
}
.bom td:first-child { color: var(--on-navy-muted); width: 3.2em; }
.bom tbody tr:not(.asm) td:nth-child(2) { padding-left: 28px; }
.bom tbody tr:not(.asm) td:last-child { color: var(--on-navy-muted); }
.bom .asm td { font-weight: 700; padding-top: 16px; }
.bom .num { text-align: right; width: 3.5em; }
.bom tfoot td {
  border-top: 2px solid var(--on-navy);
  border-bottom: 0;
  padding-top: 14px;
  font-weight: 700;
  font-size: 1.1rem;
  vertical-align: baseline;
}
.bom .total {
  text-align: left;
  color: #FB923C;
  font-size: clamp(2rem, 4vw, 2.6rem);
  font-stretch: 70%;
  font-weight: 850;
  line-height: 1;
}

/* Features */
.features { padding-block: clamp(64px, 9vw, 120px) 24px; }
.section-lede { color: var(--steel); font-size: 1.15rem; margin-top: 16px; }
.feature {
  display: grid;
  grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
  gap: 32px 56px;
  align-items: center;
  margin-block: clamp(56px, 8vw, 104px);
}
.feature:nth-of-type(even) { grid-template-columns: minmax(0, 8fr) minmax(0, 4fr); }
.feature:nth-of-type(even) .feature-text { order: 2; }
.feature-text h3 { margin-bottom: 16px; }
.feature-text p { color: var(--steel); }
.feature-text b { color: var(--ink); }

.also-title { font-size: 1.35rem; margin-bottom: 8px; }
.also {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: 48px;
}
.also li {
  padding: 14px 0 14px 22px;
  border-top: 1px solid var(--rule);
  position: relative;
  color: var(--steel);
}
.also li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.35em;
  width: 9px;
  height: 9px;
  background: var(--orange);
  border-radius: 2px;
}

/* Getting started: a real sequence, so it is numbered */
.start { padding-block: clamp(64px, 9vw, 110px); }
.steps {
  list-style: none;
  counter-reset: step;
  padding: 0;
  margin: 36px 0 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 32px 48px;
}
.steps li { counter-increment: step; border-top: 3px solid var(--ink); padding-top: 18px; }
.steps li::before {
  content: counter(step);
  display: block;
  font-size: 3.4rem;
  font-weight: 850;
  font-stretch: 62%;
  line-height: 1;
  color: var(--orange-text);
  margin-bottom: 10px;
}
.steps h3 { font-size: 1.45rem; margin-bottom: 8px; }
.steps p { color: var(--steel); }

/* Closing call to action */
.closer { background: var(--orange); color: #15264A; padding-block: clamp(44px, 6vw, 72px); }
.closer-row { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 24px 40px; }
.closer h2 { margin-bottom: 10px; }
.closer p { margin: 0; font-size: 1.15rem; }
.closer .btn { background: #15264A; color: #FFFFFF; box-shadow: none; font-size: 1.1rem; }
.closer .btn:hover { background: #21386A; }
.closer .btn:focus-visible { outline-color: #15264A; }

/* Footer */
.footer { border-top: 1px solid var(--rule); color: var(--steel); font-size: 0.95rem; }
.footer-row { display: flex; flex-wrap: wrap; gap: 8px 32px; justify-content: space-between; padding-block: 28px; }
.footer p { margin: 0; }
.footer a { color: var(--ink); }

/* Narrow screens */
@media (max-width: 900px) {
  .hero .wrap:first-child,
  .why-grid,
  .feature,
  .feature:nth-of-type(even) { grid-template-columns: minmax(0, 1fr); }
  .feature:nth-of-type(even) .feature-text { order: 0; }
  .steps { grid-template-columns: minmax(0, 1fr); }
  .also { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 640px) {
  .topnav a[href^="#"] { display: none; }
  .topnav { gap: 14px; }
  .wordmark { font-size: 1.25rem; }
  .wordmark img { width: 30px; height: 30px; }
  .shot img, .shot-hero img { box-shadow: 6px 6px 0 var(--shot-shadow); }
  .shot-hero img { box-shadow: 8px 8px 0 var(--orange); }
  /* Every row becomes the same three-column grid; the notes drop under each line */
  .bom, .bom caption, .bom thead, .bom tbody, .bom tfoot { display: block; }
  .bom tr {
    display: grid;
    grid-template-columns: 2.6em minmax(0, 1fr) auto;
    border-bottom: 1px solid rgb(255 255 255 / 0.08);
  }
  .bom thead tr { border-bottom: 1px solid rgb(255 255 255 / 0.25); }
  .bom th, .bom td { border-bottom: 0; }
  .bom td:first-child, .bom .num { width: auto; }
  .bom th:last-child, .bom .asm td:last-child { display: none; }
  .bom tbody tr:not(.asm) td:nth-child(2) { padding-left: 12px; }
  .bom tbody tr:not(.asm) td:last-child {
    grid-column: 2 / -1;
    padding: 0 10px 8px 12px;
    font-size: 0.9rem;
  }
  .bom tfoot tr { border-bottom: 0; border-top: 2px solid var(--on-navy); }
  .bom tfoot td { border-top: 0; }
}
@media (max-width: 420px) {
  .topnav a[href*="login"] { display: none; }
}