/* Mint Hill Robotics
   An engineer's notebook on warm paper: graphite text, one orange accent,
   mono labels. Dark bands for the hero, team, and footer. Mobile first. */

:root {
  --paper: #f6f3ec;
  --ink: #1d1d1b;
  --ink-soft: #4a4a46;
  --paper-soft: #d9d5ca;
  --orange: #e8590c;
  --orange-bright: #ff6a1a;
  --line: #d8d3c6;
  --grid: #e6e1d4;
  --steel: #8b8f96;
  --steel-dark: #5a5e64;
  --steel-deep: #2b2d30;

  --font-body: "Inter", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, Menlo, monospace;
  --font-place: "Libre Caslon Display", Georgia, serif;
  --font-rob: "Audiowide", "Arial Black", sans-serif;

  --gutter: 16px;
  --max: 1100px;
  --measure: 60ch;
}

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

html {
  -webkit-text-size-adjust: 100%;
  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-body);
  font-size: 1.0625rem;
  line-height: 1.55;
}

h1,
h2,
h3,
p,
ul,
ol,
dl,
dd,
figure {
  margin: 0;
}

h1,
h2 {
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1;
  text-wrap: balance;
}

h2 {
  font-size: clamp(1.9rem, 6vw, 2.25rem);
  margin-bottom: 0.75rem;
}

h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.25;
  margin-bottom: 0.4rem;
}

p + p {
  margin-top: 0.75rem;
}

a {
  color: inherit;
}

sup {
  font-size: 0.6em;
  line-height: 0;
}

:focus-visible {
  outline: 3px solid var(--orange);
  outline-offset: 3px;
}

.site-header :focus-visible,
.hero :focus-visible,
.band--dark :focus-visible,
.site-footer :focus-visible {
  outline-color: var(--orange-bright);
}

/* layout */

.wrap {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.section {
  padding: 40px 0;
}

.section--rule {
  border-top: 1px solid var(--line);
}

.prose p,
.prose li {
  max-width: var(--measure);
}

.prose h2 {
  margin-top: 1.5rem;
}

.prose ul,
.prose ol {
  padding-left: 1.25em;
}

.lede {
  font-size: 1.125rem;
  max-width: var(--measure);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.cols-2 {
  display: grid;
  gap: 16px;
}

/* text helpers */

.eyebrow {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 10px;
}

.mono {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip {
  position: absolute;
  left: var(--gutter);
  top: -100px;
  background: var(--orange);
  color: #fff;
  padding: 8px 12px;
  border-radius: 6px;
  font-weight: 700;
  z-index: 10;
}

.skip:focus {
  top: 8px;
}

/* buttons */

.btn {
  display: inline-block;
  padding: 10px 16px;
  border: 1.5px solid transparent;
  border-radius: 6px;
  background: var(--orange);
  color: #fff;
  font-weight: 700;
  font-size: 0.875rem;
  line-height: 1.2;
  text-decoration: none;
}

.btn--ghost {
  background: transparent;
  border-color: currentColor;
  color: inherit;
}

.btn--dark {
  background: var(--ink);
  color: var(--paper);
}

/* header */

.site-header {
  background: var(--ink);
  color: var(--paper);
}

.site-header__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  padding-top: 14px;
  padding-bottom: 14px;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  line-height: 1;
  text-decoration: none;
  color: inherit;
}

.wordmark::before {
  content: "";
  flex: none;
  width: 12px;
  height: 12px;
  border-radius: 2px;
  background: var(--orange-bright);
}

.wordmark__place {
  font-family: var(--font-place);
  font-size: 1.25rem;
}

.wordmark__rob {
  font-family: var(--font-rob);
  font-size: 1.125rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.wordmark--stack {
  align-items: flex-start;
}

.wordmark--stack .wordmark__text {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.wordmark--stack .wordmark__place {
  font-size: 1.625rem;
}

.wordmark--stack .wordmark__rob {
  font-size: 1.375rem;
}

.site-nav {
  flex-basis: 100%;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 18px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
}

.site-nav a {
  color: var(--paper);
  text-decoration: none;
  padding: 4px 0;
  border-bottom: 2px solid transparent;
}

.site-nav a:hover {
  border-bottom-color: var(--paper-soft);
}

.site-nav a[aria-current="page"] {
  border-bottom-color: var(--orange-bright);
}

.site-nav .site-nav__cta {
  color: var(--orange-bright);
  font-weight: 600;
}

/* hero (home) */

.hero {
  background-color: var(--ink);
  background-image: radial-gradient(#3a3a37 1px, transparent 1px);
  background-size: 14px 14px;
  color: var(--paper);
  padding: 44px 0 56px;
}

.hero__inner {
  display: grid;
  gap: 36px;
  align-items: center;
}

.hero .eyebrow {
  color: var(--orange-bright);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  margin-bottom: 14px;
}

.hero h1 {
  font-size: clamp(2.5rem, 9vw, 3.5rem);
  margin-bottom: 16px;
}

.hero h1 em {
  font-style: normal;
  color: var(--orange-bright);
}

.hero p {
  font-size: 1.0625rem;
  color: var(--paper-soft);
  max-width: 40ch;
}

.hero .btn {
  background: var(--orange-bright);
  color: var(--ink);
}

.hero .btn--ghost {
  background: transparent;
  color: var(--paper);
  border-color: var(--paper);
}

/* spec card */

.spec {
  position: relative;
  margin: 0 10px 10px 0;
  padding: 34px 12px 30px;
  border-radius: 8px;
  color: var(--ink);
  background-color: var(--paper);
  background-image: linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 20px 20px;
  box-shadow: 10px 10px 0 var(--orange-bright);
}

.spec__cap,
.spec__cap2 {
  position: absolute;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.spec__cap {
  left: 14px;
  top: 10px;
}

.spec__cap2 {
  right: 14px;
  bottom: 10px;
}

.spec svg {
  display: block;
  width: 100%;
  height: auto;
}

.spec svg text {
  font-family: var(--font-mono);
  font-size: 11.5px;
  fill: var(--ink);
}

.spec svg .lead {
  fill: none;
  stroke: var(--ink);
  stroke-width: 1;
  stroke-dasharray: 3 3;
}

.spec svg .box {
  fill: var(--paper);
  stroke: var(--ink);
  stroke-width: 1;
}

.spec svg .dim {
  fill: none;
  stroke: var(--ink-soft);
  stroke-width: 1;
}

.spec svg .dimt {
  fill: var(--ink-soft);
  font-size: 10px;
}

/* page hero (inner pages) */

.page-hero {
  padding: 44px 0 32px;
  border-bottom: 1px solid var(--line);
}

.page-hero h1 {
  font-size: clamp(2.25rem, 8vw, 3.25rem);
  margin-bottom: 14px;
}

.page-hero p {
  max-width: var(--measure);
  font-size: 1.125rem;
}

.page-hero__meta {
  display: block;
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--ink-soft);
}

/* credibility strip */

.cred {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-bottom: 1px solid var(--line);
}

.cred li {
  padding: 16px 20px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.cred li:nth-child(2n) {
  border-right: 0;
}

.cred b {
  display: block;
  font-size: 0.9375rem;
  letter-spacing: -0.01em;
}

.cred span {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--ink-soft);
}

.cred a {
  color: inherit;
  text-decoration: underline;
  text-decoration-color: var(--orange);
  text-underline-offset: 3px;
}

/* schedule table */

.sched {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  margin-top: 20px;
}

.sched tr {
  display: block;
  padding: 12px 0;
  border-top: 1px solid var(--line);
}

.sched tr:last-child {
  border-bottom: 1px solid var(--line);
}

.sched td {
  display: block;
  padding: 2px 0;
  text-align: left;
}

.sched__date {
  font-weight: 600;
}

.sched__title {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.9375rem;
}

.sched__title small {
  display: block;
  font-weight: 400;
  font-size: 0.8125rem;
  color: var(--ink-soft);
  margin-top: 2px;
}

.pill {
  display: inline-block;
  padding: 2px 8px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink);
}

.pill--free {
  background: var(--ink);
  color: var(--paper);
}

.pill--orange {
  border-color: var(--orange);
  color: var(--orange);
}

/* class section */

.points {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 24px;
}

.points__n {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--orange);
  margin-bottom: 8px;
}

.ruler {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 4px;
}

.ruler li {
  height: 44px;
  border: 1px solid var(--ink);
  background: #fff;
  display: flex;
  align-items: flex-end;
  padding: 4px 6px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
}

.ruler .is-rehearsal {
  background: var(--paper);
  border-style: dashed;
}

.ruler .is-show {
  background: var(--orange);
  border-color: var(--orange);
  color: #fff;
  font-weight: 600;
}

.ruler-cap {
  display: flex;
  justify-content: space-between;
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--ink-soft);
}

/* dark band (team) and note cards */

.band--dark {
  background: var(--ink);
  color: var(--paper);
}

.band--dark .eyebrow {
  color: var(--orange-bright);
}

.band--dark p {
  color: var(--paper-soft);
}

.band--dark .btn {
  background: var(--orange-bright);
  color: var(--ink);
}

.band__inner {
  display: grid;
  gap: 32px;
  align-items: center;
}

.notecard {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.5;
  padding: 14px 16px;
  border: 1px solid #4a4a46;
  border-radius: 6px;
  color: var(--paper-soft);
}

.notecard b {
  display: block;
  margin-bottom: 4px;
  color: var(--paper);
}

.notecard ul {
  margin: 0;
  padding-left: 1.1em;
}

.notecard--paper {
  background: #fff;
  border-color: var(--line);
  color: var(--ink-soft);
}

.notecard--paper b {
  color: var(--ink);
}

/* people */

.people {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 24px;
}

.person {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 16px;
  align-items: start;
}

.person__photo,
.ph {
  display: flex;
  align-items: flex-end;
  padding: 4px;
  border: 1px solid var(--ink);
  background-color: #fff;
  background-image: linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 12px 12px;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  color: var(--ink-soft);
}

.person__photo {
  width: 96px;
  height: 112px;
}

.ph {
  min-height: 200px;
  border-radius: 8px;
}

.person__role {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--orange);
  margin-bottom: 4px;
}

.person--large {
  grid-template-columns: 120px 1fr;
}

.person--large .person__photo {
  width: 120px;
  height: 144px;
}

.person__photo--initials {
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 1.75rem;
  letter-spacing: -0.02em;
  color: var(--ink-soft);
}

/* faq */

.faq dt {
  font-weight: 700;
  padding: 12px 0 4px;
  border-top: 1px solid var(--line);
}

.faq dd {
  margin: 0 0 12px;
  color: var(--ink-soft);
  max-width: var(--measure);
}

.qa h2 {
  margin-top: 2rem;
}

.qa h3 {
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.qa p {
  color: var(--ink-soft);
  max-width: var(--measure);
  margin-bottom: 12px;
}

/* cta band */

.cta-band {
  background: var(--orange);
  color: var(--ink);
  text-align: center;
  padding: 44px var(--gutter);
}

.cta-band h2 {
  font-size: clamp(2rem, 7vw, 2.25rem);
}

.cta-band p {
  margin: 8px 0 18px;
}

.cta-band .btn {
  background: var(--ink);
  color: var(--paper);
}

/* forms */

.form-embed {
  margin-top: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: #fff;
}

.form-embed iframe {
  display: block;
  width: 100%;
  height: 900px;
  border: 0;
}

/* footer */

.site-footer {
  background: var(--ink);
  color: #a9a59a;
  padding: 28px 0;
  font-size: 0.75rem;
}

.site-footer__inner {
  display: grid;
  gap: 24px;
}

.site-footer .wordmark {
  color: var(--paper);
  margin-bottom: 8px;
}

.site-footer a {
  color: var(--paper);
}

.footer-nav a {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-mono);
  text-decoration: none;
}

.fine {
  grid-column: 1 / -1;
  padding-top: 12px;
  border-top: 1px solid #3a3a37;
  font-size: 0.6875rem;
}

.fine + .fine {
  padding-top: 0;
  border-top: 0;
}

/* tablet and up */

@media (min-width: 640px) {
  :root {
    --gutter: 24px;
  }

  .site-nav {
    flex-basis: auto;
  }

  .section {
    padding: 56px 0;
  }

  .cols-2 {
    grid-template-columns: 1fr 1fr;
  }

  .sched tr {
    display: table-row;
    padding: 0;
    border: 0;
  }

  .sched td {
    display: table-cell;
    padding: 12px 10px;
    border-top: 1px solid var(--line);
    vertical-align: top;
  }

  .sched tr:last-child td {
    border-bottom: 1px solid var(--line);
  }

  .sched__date {
    width: 120px;
  }

  .sched__action {
    text-align: right;
    white-space: nowrap;
  }

  .people {
    grid-template-columns: 1fr 1fr;
  }
}

/* desktop */

@media (min-width: 960px) {
  :root {
    --gutter: 32px;
  }

  body {
    font-size: 1.125rem;
  }

  .section {
    padding: 64px 0;
  }

  .hero {
    padding: 64px 0 72px;
  }

  .hero__inner {
    grid-template-columns: 1.1fr 1fr;
  }

  .cred {
    grid-template-columns: repeat(4, 1fr);
  }

  .cred li {
    border-bottom: 0;
  }

  .cred li:nth-child(2n) {
    border-right: 1px solid var(--line);
  }

  .cred li:last-child {
    border-right: 0;
  }

  .points {
    grid-template-columns: repeat(3, 1fr);
  }

  .band__inner {
    grid-template-columns: 1.3fr 1fr;
  }

  .site-footer__inner {
    grid-template-columns: 1.4fr 1fr 1fr;
  }
}