/* ==========================================================================
   Back to School Together — design system (quiet revision)
   One accent, one dark band, hairlines instead of stripes.
   Type: Bricolage Grotesque (display) / Source Serif 4 (body) / IBM Plex Mono (figures)
   ========================================================================== */

:root {
  --ground:        #F5F6F2;
  --surface:       #FFFFFF;
  --ink:           #17241E;
  --ink-soft:      #45564D;
  --muted:         #75857B;
  --line:          #DDE3D9;
  --line-soft:     #E8ECE4;
  --primary:       #046652;   /* the logo green, darkened enough to read as text */
  --primary-deep:  #00453A;
  --accent:        #B77C0B;
  --accent-wash:   #F2E4C4;
  --on-dark:       #F2F5EF;
  --focus:         #B77C0B;

  --font-display: "Bricolage Grotesque", "Trebuchet MS", system-ui, sans-serif;
  --font-body:    "Source Serif 4", Georgia, "Times New Roman", serif;
  --font-mono:    "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --measure: 64ch;
  --page:    64rem;
  --gutter:  clamp(1.25rem, 5vw, 3rem);
  --radius:  3px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ground:        #101714;
    --surface:       #172119;
    --ink:           #E8EDE6;
    --ink-soft:      #C4CFC8;
    --muted:         #90A197;
    --line:          #2A382F;
    --line-soft:     #212D26;
    --primary:       #62C7A9;
    --primary-deep:  #93DEC6;
    --accent:        #E5B152;
    --accent-wash:   #33290F;
    --on-dark:       #F2F5EF;
    --focus:         #E5B152;
  }
}

:root[data-theme="dark"] {
  --ground:        #101714;
  --surface:       #172119;
  --ink:           #E8EDE6;
  --ink-soft:      #C4CFC8;
  --muted:         #90A197;
  --line:          #2A382F;
  --line-soft:     #212D26;
  --primary:       #62C7A9;
  --primary-deep:  #93DEC6;
  --accent:        #E5B152;
  --accent-wash:   #33290F;
  --on-dark:       #F2F5EF;
  --focus:         #E5B152;
}

/* --------------------------------------------------------------- base --- */

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

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.7;
  font-synthesis-weight: none;
}

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

a { color: var(--primary); text-underline-offset: .18em; text-decoration-thickness: 1px; }
a:hover { color: var(--accent); }

:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; border-radius: 2px; }

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.12;
  text-wrap: balance;
  margin: 0;
  letter-spacing: -.02em;
}

p { margin: 0; }

/* ------------------------------------------------------------ helpers --- */

.wrap { width: min(100% - var(--gutter) * 2, var(--page)); margin-inline: auto; }
.prose { max-width: var(--measure); }
.prose p + p { margin-top: 1.15em; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 .75rem;
}

.skip {
  position: absolute; left: -9999px;
  background: var(--primary); color: var(--on-dark);
  padding: .6rem 1rem; z-index: 100;
}
.skip:focus { left: 1rem; top: 1rem; }

/* -------------------------------------------------------------- chrome --- */

.masthead { border-bottom: 1px solid var(--line); background: var(--ground); }
.masthead__inner {
  display: flex; align-items: baseline; gap: 1.25rem 2rem;
  padding-block: 1.1rem; flex-wrap: wrap;
}

.brand { display: flex; align-items: center; gap: .7rem; text-decoration: none; margin-right: auto; }
.brand__logo { height: 1.75rem; width: auto; }
.brand__full {
  font-family: var(--font-mono); font-size: .625rem;
  letter-spacing: .12em; text-transform: uppercase; color: var(--muted);
}

.nav { display: flex; align-items: baseline; gap: .5rem 1.5rem; flex-wrap: wrap; }
.nav a, .nav button {
  font-family: var(--font-display); font-size: .9375rem; font-weight: 500;
  color: var(--ink-soft); text-decoration: none;
  padding: 0; border: 0; background: none; cursor: pointer;
}
.nav a:hover, .nav button:hover { color: var(--primary); }
.nav [aria-current="page"] { color: var(--ink); font-weight: 700; }

/* -------------------------------------------------------------- button --- */

.btn {
  display: inline-flex; align-items: center;
  font-family: var(--font-display); font-weight: 600; font-size: .9375rem;
  padding: .7rem 1.2rem; border-radius: var(--radius);
  text-decoration: none; border: 1px solid transparent; cursor: pointer;
  transition: background-color .12s ease, border-color .12s ease;
}
.btn--primary { background: var(--primary); color: var(--on-dark); }
.btn--primary:hover { background: var(--primary-deep); color: var(--on-dark); }
.btn--ghost { border-color: var(--line); color: var(--ink); }
.btn--ghost:hover { border-color: var(--primary); color: var(--primary); }

/* -------------------------------------------------------------- rhythm --- */

.band { padding-block: clamp(3.5rem, 8vw, 6rem); }
.band + .band { border-top: 1px solid var(--line-soft); }

.band--dark {
  background: var(--primary-deep);
  color: var(--on-dark);
  border-top: 0;
}
.band--dark h2 { color: var(--on-dark); }
.band--dark p { color: color-mix(in srgb, var(--on-dark) 82%, transparent); }
.band--dark .btn--ghost { border-color: color-mix(in srgb, var(--on-dark) 32%, transparent); color: var(--on-dark); }
.band--dark .btn--ghost:hover { border-color: var(--on-dark); color: var(--on-dark); }

.band__head { margin-bottom: 2.5rem; }
.band__head h2 { font-size: clamp(1.5rem, 3.4vw, 2rem); }
.band__head p { color: var(--ink-soft); margin-top: .75rem; max-width: var(--measure); }

/* wins over .band__head p, which is equally specific and declared above */
.band--dark .band__head p,
.band--dark .prose p { color: color-mix(in srgb, var(--on-dark) 85%, transparent); }

.pagehead { padding-block: clamp(3rem, 7vw, 5rem) 0; }
.pagehead h1 { font-size: clamp(2rem, 5.5vw, 3rem); letter-spacing: -.03em; }
.pagehead p { color: var(--ink-soft); margin-top: 1rem; max-width: var(--measure); }

/* ---------------------------------------------------------------- hero --- */

.hero { padding-block: clamp(3.5rem, 10vw, 7rem) clamp(3rem, 7vw, 5rem); }
.hero h1 {
  font-size: clamp(2.4rem, 7vw, 4.25rem);
  font-weight: 800; letter-spacing: -.04em; max-width: 15ch;
}
.hero h1 em { font-style: normal; color: var(--primary); }
.hero__lede {
  font-size: clamp(1.0625rem, 1.8vw, 1.1875rem);
  color: var(--ink-soft); max-width: 52ch; margin-top: 1.75rem;
}
.actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 2.25rem; }
.hero__quote {
  margin: 3.5rem 0 0; padding: 0;
  font-size: 1.125rem; color: var(--ink-soft); max-width: 46ch;
}
.hero__quote cite {
  display: block; margin-top: .6rem;
  font-family: var(--font-mono); font-style: normal;
  font-size: .6875rem; letter-spacing: .1em; text-transform: uppercase; color: var(--muted);
}

/* -------------------------------------------------------------- figures --- */

.figures {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr));
  gap: 2rem 2.5rem;
}
.figures__n {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.875rem; font-weight: 500;
  font-variant-numeric: tabular-nums;
  letter-spacing: -.03em; color: var(--ink);
}
.figures__l {
  display: block; margin-top: .5rem;
  font-size: .9375rem; color: var(--muted); line-height: 1.5; max-width: 24ch;
}

/* --------------------------------------------------------------- blocks --- */

.cols { display: grid; gap: 2.5rem 3rem; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); }
.cols--2 { grid-template-columns: repeat(auto-fit, minmax(19rem, 1fr)); align-items: start; }

.block h3 { font-size: 1.125rem; margin-bottom: .6rem; }
.block p { color: var(--ink-soft); font-size: .9875rem; }
.block + .block { margin-top: 0; }

/* ------------------------------------------------------------- timeline --- */

.entry {
  display: grid; grid-template-columns: 6rem 1fr; gap: 0 2rem;
  padding-block: 2rem; border-top: 1px solid var(--line-soft);
}
.entry:last-child { border-bottom: 1px solid var(--line-soft); }
.entry__year {
  font-family: var(--font-mono); font-size: .9375rem;
  font-variant-numeric: tabular-nums; color: var(--muted); padding-top: .3rem;
}
.entry__body { max-width: var(--measure); }
.entry__body h3 { font-size: 1.1875rem; margin-bottom: .5rem; }
.entry__body p { color: var(--ink-soft); }
.entry__meta {
  margin-top: .75rem;
  display: flex; flex-wrap: wrap; gap: .3rem 1.25rem;
  font-family: var(--font-mono); font-size: .75rem; color: var(--muted);
}
@media (max-width: 42rem) {
  .entry { grid-template-columns: 1fr; gap: .5rem; }
}

/* --------------------------------------------------------------- roster --- */

.roster { display: grid; grid-template-columns: repeat(auto-fit, minmax(19rem, 1fr)); gap: 2rem 3rem; }
.person { display: grid; grid-template-columns: 4.5rem 1fr; gap: 1.1rem; align-items: start; }
.person__photo {
  width: 4.5rem; height: 4.5rem;
  border-radius: 50%;
  object-fit: cover;
  background: var(--surface);
  border: 1px solid var(--line);
}
.person__photo--empty {
  display: grid; place-content: center;
  font-family: var(--font-mono); font-size: .8125rem;
  letter-spacing: .04em; color: var(--muted);
}
.person__name { font-family: var(--font-display); font-weight: 700; font-size: 1.0625rem; display: block; }
.person__role {
  font-family: var(--font-mono); font-size: .6875rem;
  letter-spacing: .1em; text-transform: uppercase; color: var(--muted);
  display: block; margin-bottom: .25rem;
}
.person__bio { font-size: .9375rem; color: var(--ink-soft); margin-top: .4rem; }

.staffgrid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(9rem, 1fr));
  gap: 1.75rem 1.25rem;
  list-style: none; padding: 0; margin: 0;
}
.staffgrid li { display: flex; flex-direction: column; align-items: center; gap: .6rem; text-align: center; }
.staffgrid .person__photo { width: 4rem; height: 4rem; }
.staffgrid__name {
  font-family: var(--font-display); font-weight: 600;
  font-size: .9375rem; color: var(--ink); line-height: 1.3;
}

/* ---------------------------------------------------------------- posts --- */

.postlist { display: flex; flex-direction: column; }
.postlist__item {
  display: grid; grid-template-columns: 9rem 1fr; gap: 0 2rem;
  padding-block: 1.65rem; border-top: 1px solid var(--line-soft);
  text-decoration: none; color: inherit;
}
.postlist__item:last-child { border-bottom: 1px solid var(--line-soft); }
.postlist__item:hover .postlist__title { color: var(--primary); }
.postlist__date {
  font-family: var(--font-mono); font-size: .75rem;
  font-variant-numeric: tabular-nums; color: var(--muted); padding-top: .35rem;
}
.postlist__title { display: block; font-family: var(--font-display); font-weight: 700; font-size: 1.125rem; }
.postlist__excerpt { display: block; color: var(--ink-soft); font-size: .9375rem; margin-top: .35rem; max-width: var(--measure); }
@media (max-width: 42rem) {
  .postlist__item { grid-template-columns: 1fr; gap: .35rem; }
}

.article__head { margin-bottom: 2.25rem; }
.article__head h1 { font-size: clamp(1.85rem, 4.5vw, 2.5rem); max-width: 24ch; margin-top: .5rem; }
.article__body { max-width: var(--measure); }
.article__body p + p { margin-top: 1.2em; }
.article__body h2 { font-size: 1.25rem; margin: 2rem 0 .75rem; }
.article__note { color: var(--muted); font-size: .9375rem; }

/* ------------------------------------------------------------ photo slot --- */

.photo {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  display: grid; place-content: center; text-align: center;
  min-height: 15rem; padding: 1.5rem; gap: .35rem;
}
.photo__label {
  font-family: var(--font-mono); font-size: .6875rem;
  letter-spacing: .12em; text-transform: uppercase; color: var(--muted);
}
.photo__hint { font-size: .875rem; color: var(--muted); max-width: 26ch; }

/* -------------------------------------------------------------- feature --- */

.feature { margin: 0; }
.feature img, .feature video {
  width: 100%; height: auto; display: block;
  border-radius: var(--radius);
  background: var(--surface);
}
.feature figcaption {
  margin-top: .7rem;
  font-family: var(--font-mono); font-size: .75rem;
  letter-spacing: .06em; color: var(--muted);
}

/* ----------------------------------------------------------------- form --- */

.form { display: flex; flex-direction: column; gap: 1.1rem; max-width: 32rem; }
.field { display: flex; flex-direction: column; gap: .4rem; }
.field label {
  font-family: var(--font-mono); font-size: .6875rem;
  letter-spacing: .1em; text-transform: uppercase; color: var(--muted);
}
.field input, .field textarea {
  font-family: var(--font-body); font-size: 1rem;
  color: var(--ink); background: var(--surface);
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: .7rem .8rem;
}
.field input:focus, .field textarea:focus { border-color: var(--primary); }
.field textarea { min-height: 8rem; resize: vertical; }

.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form__done {
  max-width: 32rem; padding: 1.1rem 1.2rem;
  border: 1px solid var(--line); border-left: 3px solid var(--primary);
  border-radius: var(--radius); background: var(--surface); color: var(--ink-soft);
}

.deets { display: flex; flex-direction: column; gap: 1.1rem; }
.deets__key {
  display: block;
  font-family: var(--font-mono); font-size: .6875rem;
  letter-spacing: .1em; text-transform: uppercase; color: var(--muted);
}
.deets__val { display: block; margin-top: .15rem; }

/* --------------------------------------------------------------- footer --- */

.footer { border-top: 1px solid var(--line); padding-block: 3rem 2rem; }
.footer__grid { display: grid; gap: 2rem 3rem; grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr)); }
.footer h4 {
  font-family: var(--font-mono); font-size: .625rem; font-weight: 400;
  letter-spacing: .13em; text-transform: uppercase; color: var(--muted);
  margin: 0 0 .9rem;
}
.footer__logo { display: block; margin-bottom: 1rem; }
.footer__logo img { width: 9.5rem; height: auto; }
.footer ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: .5rem; }
.footer a { color: var(--ink-soft); text-decoration: none; font-size: .9375rem; }
.footer a:hover { color: var(--primary); }
.footer p { color: var(--ink-soft); font-size: .9375rem; max-width: 30ch; }
.footer__base {
  margin-top: 2.5rem; padding-top: 1.25rem; border-top: 1px solid var(--line-soft);
  display: flex; flex-wrap: wrap; gap: .5rem 2rem;
  font-family: var(--font-mono); font-size: .6875rem; color: var(--muted);
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

.pane[hidden] { display: none !important; }