/* ==========================================================================
   John Voss Learning — stylesheet
   Single stylesheet for all pages. Edit colors in :root below.
   ========================================================================== */

:root {
  --ink:        #10151c;
  --ink-soft:   #3d4753;
  --ink-mute:   #66707d;
  --line:       #e2e6ec;
  --line-soft:  #eef1f5;
  --paper:      #ffffff;
  --paper-alt:  #f6f8fa;
  --navy:       #16324f;
  --navy-deep:  #0d2137;
  --accent:     #af1f38;   /* brand crimson, taken from the JV logo */
  --accent-dk:  #8e1a2e;
  --accent-wash:#fdf0f2;

  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, "Helvetica Neue", Arial, sans-serif;

  --wrap: 1120px;
  --gut: 24px;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(16,21,28,.05), 0 8px 24px rgba(16,21,28,.06);
}

/* --------------------------------------------------------------- reset -- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}
body {
  margin: 0;
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink-soft);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; height: auto; display: block; }
h1, h2, h3, h4 { color: var(--ink); line-height: 1.2; margin: 0 0 .5em; font-weight: 600; }
h1 { font-family: var(--serif); font-size: clamp(2.1rem, 5vw, 3.3rem); font-weight: 600; letter-spacing: -.015em; }
h2 { font-family: var(--serif); font-size: clamp(1.6rem, 3.4vw, 2.25rem); letter-spacing: -.01em; }
h3 { font-size: 1.16rem; letter-spacing: -.005em; }
p { margin: 0 0 1.1em; }
a { color: var(--navy); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--accent-dk); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 3px; }
ul { padding-left: 1.15em; }
li { margin-bottom: .4em; }
hr { border: 0; border-top: 1px solid var(--line); margin: 3rem 0; }

/* ------------------------------------------------------------- layout -- */
.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gut); }
.wrap--narrow { max-width: 760px; }
.section { padding: clamp(3.5rem, 8vw, 6rem) 0; }
.section--tight { padding: clamp(2.5rem, 5vw, 3.5rem) 0; }
.section--alt { background: var(--paper-alt); border-block: 1px solid var(--line-soft); }
.section--dark { background: var(--navy-deep); color: #c9d4df; }
.section--dark h2, .section--dark h3 { color: #fff; }

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 999;
  background: var(--navy); color: #fff; padding: .75rem 1.25rem; border-radius: 0 0 var(--radius) 0;
}
.skip-link:focus { left: 0; }

/* ---------------------------------------------------------------- nav -- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.94);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 72px; }
.brand { display: flex; align-items: center; gap: .7rem; text-decoration: none; line-height: 1.15; }
.brand__mark { width: 40px; height: 40px; flex: none; display: block; }
.brand__text { display: flex; flex-direction: column; }
@media (max-width: 420px) { .brand__mark { width: 34px; height: 34px; } }
.brand__name {
  font-family: var(--serif); font-size: 1.28rem; font-weight: 600;
  color: var(--ink); letter-spacing: -.01em;
}
.brand__tag {
  font-size: .69rem; letter-spacing: .11em; text-transform: uppercase;
  color: var(--ink-mute); font-weight: 500; margin-top: 2px;
}
.brand:hover .brand__name { color: var(--navy); }

.nav__toggle {
  display: none; background: none; border: 1px solid var(--line);
  border-radius: 7px; padding: .5rem .7rem; cursor: pointer; color: var(--ink);
  font-size: .9rem; align-items: center; gap: .45rem;
}
.nav__links { display: flex; align-items: center; gap: 2rem; list-style: none; margin: 0; padding: 0; }
.nav__links li { margin: 0; }
.nav__links a {
  text-decoration: none; color: var(--ink-soft); font-size: .95rem; font-weight: 500;
  padding: .35rem 0; border-bottom: 2px solid transparent;
}
.nav__links a:hover { color: var(--ink); border-bottom-color: var(--line); }
.nav__links a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--accent); }
/* The .nav__links a rule above outranks .btn on specificity, so the header
   button needs its padding restated here or it renders with none. */
.nav__links .btn {
  padding: .62rem 1.2rem;
  border-bottom: none;
  white-space: nowrap;
  color: #fff;
}
.nav__links .btn:hover { border-bottom: none; color: #fff; }
.nav__links li { flex: none; }

@media (max-width: 860px) {
  .nav__toggle { display: inline-flex; }
  .nav__links {
    display: none; position: absolute; left: 0; right: 0; top: 100%;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--paper); border-bottom: 1px solid var(--line);
    padding: .5rem var(--gut) 1.25rem; box-shadow: var(--shadow);
  }
  .nav__links.is-open { display: flex; }
  .nav__links a { padding: .85rem 0; border-bottom: 1px solid var(--line-soft); }
  .nav__links a[aria-current="page"] { border-bottom-color: var(--line-soft); color: var(--accent-dk); }
  .nav__links .btn { margin-top: .9rem; text-align: center; }
}

/* -------------------------------------------------------------- button -- */
.btn {
  display: inline-block; font-family: var(--sans); font-size: .95rem; font-weight: 600;
  padding: .78rem 1.5rem; border-radius: 7px; text-decoration: none; cursor: pointer;
  border: 1px solid transparent; transition: background-color .16s ease, color .16s ease, border-color .16s ease;
}
.btn--primary { background: var(--accent); color: #fff; }
.btn--primary:hover { background: var(--accent-dk); color: #fff; }
.btn--ghost { border-color: var(--line); color: var(--ink); background: transparent; }
.btn--ghost:hover { border-color: var(--ink-mute); color: var(--ink); background: var(--paper-alt); }
.btn--light { background: #fff; color: var(--navy-deep); }
.btn--light:hover { background: #eef2f6; color: var(--navy-deep); }
.btn--outline-light { border-color: rgba(255,255,255,.35); color: #fff; }
.btn--outline-light:hover { border-color: #fff; background: rgba(255,255,255,.08); color: #fff; }
.btn-row { display: flex; flex-wrap: wrap; gap: .85rem; margin-top: 1.75rem; }

/* ---------------------------------------------------------------- hero -- */
.hero { padding: clamp(3.5rem, 9vw, 6.5rem) 0 clamp(3rem, 7vw, 5rem); }
.hero__eyebrow {
  font-size: .72rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--accent-dk); font-weight: 700; margin-bottom: 1.1rem;
}
.hero__lede { font-size: clamp(1.05rem, 2vw, 1.24rem); color: var(--ink-soft); max-width: 62ch; }
.hero__grid { display: grid; grid-template-columns: 1.35fr .8fr; gap: clamp(2rem, 5vw, 4.5rem); align-items: start; }
@media (max-width: 900px) { .hero__grid { grid-template-columns: 1fr; } }

.facts { border-left: 3px solid var(--accent); padding-left: 1.4rem; margin-top: .5rem; }
.facts dl { margin: 0; }
.facts dt {
  font-size: .7rem; letter-spacing: .11em; text-transform: uppercase;
  color: var(--ink-mute); font-weight: 700; margin-top: 1.4rem;
}
.facts dt:first-child { margin-top: 0; }
.facts dd { margin: .2rem 0 0; color: var(--ink); font-weight: 500; font-size: .97rem; }

/* --------------------------------------------------------------- eyebrow */
.eyebrow {
  font-size: .72rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--accent-dk); font-weight: 700; margin-bottom: .9rem;
}
.section--dark .eyebrow { color: #e0a377; }
.lede { font-size: 1.1rem; max-width: 68ch; }

/* ---------------------------------------------------------------- grid -- */
.grid { display: grid; gap: 1.5rem; }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 900px) { .grid--3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 680px) { .grid--2, .grid--3 { grid-template-columns: 1fr; } }

/* ---------------------------------------------------------------- card -- */
.card {
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.75rem; display: flex; flex-direction: column;
}
.card__num {
  font-family: var(--serif); font-size: 1.6rem; color: var(--accent);
  line-height: 1; margin-bottom: .75rem;
}
.card h3 { margin-bottom: .5rem; }
.card p:last-child { margin-bottom: 0; }
.card ul { margin: 0; font-size: .95rem; }

/* ------------------------------------------------------------- service -- */
.track {
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
  padding: clamp(1.75rem, 4vw, 2.5rem); box-shadow: var(--shadow);
}
.track__label {
  display: inline-block; font-size: .68rem; letter-spacing: .12em; text-transform: uppercase;
  font-weight: 700; color: var(--accent-dk); background: var(--accent-wash);
  padding: .35rem .7rem; border-radius: 4px; margin-bottom: 1rem;
}
.track h3 { font-family: var(--serif); font-size: 1.5rem; margin-bottom: .7rem; }
.track ul { list-style: none; padding: 0; margin: 1.25rem 0 0; }
.track ul li {
  position: relative; padding-left: 1.5rem; margin-bottom: .7rem; font-size: .97rem;
}
.track ul li::before {
  content: ""; position: absolute; left: 0; top: .58em;
  width: 7px; height: 7px; border-radius: 50%; background: var(--accent);
}

/* -------------------------------------------------------------- detail -- */
.detail { border-top: 1px solid var(--line); padding-top: 2rem; margin-top: 2rem; }
.detail:first-of-type { border-top: 0; padding-top: 0; margin-top: 0; }
.detail__head { display: flex; align-items: baseline; gap: 1rem; flex-wrap: wrap; margin-bottom: .35rem; }
.detail h3 { font-family: var(--serif); font-size: 1.42rem; margin: 0; }
.detail__meta { font-size: .82rem; color: var(--ink-mute); letter-spacing: .02em; }

.deliverables {
  list-style: none; padding: 0; margin: 1.25rem 0 0;
  display: grid; grid-template-columns: repeat(2, 1fr); gap: .5rem 1.5rem;
}
@media (max-width: 680px) { .deliverables { grid-template-columns: 1fr; } }
.deliverables li { position: relative; padding-left: 1.6rem; font-size: .95rem; margin: 0; }
.deliverables li::before {
  content: "→"; position: absolute; left: 0; color: var(--accent); font-weight: 600;
}

/* ------------------------------------------------------------ portfolio -- */
.case {
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
  background: var(--paper); display: flex; flex-direction: column;
}
.case__media {
  aspect-ratio: 16 / 9; background: linear-gradient(135deg, #1b3a5c 0%, #0d2137 100%);
  display: flex; align-items: center; justify-content: center; position: relative;
  color: rgba(255,255,255,.55); text-align: center; padding: 1.5rem;
}
.case__media span {
  font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; font-weight: 600;
}
.case__body { padding: 1.6rem 1.6rem 1.75rem; flex: 1; display: flex; flex-direction: column; }
.case__tag {
  font-size: .68rem; letter-spacing: .11em; text-transform: uppercase; font-weight: 700;
  color: var(--accent-dk); margin-bottom: .55rem;
}
.case h3 { font-size: 1.2rem; margin-bottom: .7rem; }
.case dl { margin: 0; font-size: .93rem; }
.case dt {
  font-size: .68rem; letter-spacing: .09em; text-transform: uppercase;
  color: var(--ink-mute); font-weight: 700; margin-top: .95rem;
}
.case dt:first-child { margin-top: 0; }
.case dd { margin: .2rem 0 0; }
.case__stack {
  margin-top: 1.25rem; padding-top: 1rem; border-top: 1px solid var(--line-soft);
  font-size: .82rem; color: var(--ink-mute);
}

/* ---------------------------------------------------------------- note -- */
.note {
  background: var(--accent-wash); border: 1px dashed var(--accent);
  border-radius: var(--radius); padding: 1.25rem 1.5rem; font-size: .93rem; color: var(--ink-soft);
}
.note strong { color: var(--accent-dk); }
.note p:last-child { margin-bottom: 0; }

/* -------------------------------------------------------------- stacks -- */
.stack-group { margin-bottom: 2rem; }
.stack-group h3 {
  font-size: .72rem; letter-spacing: .12em; text-transform: uppercase;
  color: var(--ink-mute); font-weight: 700; margin-bottom: .85rem;
}
.chips { display: flex; flex-wrap: wrap; gap: .5rem; list-style: none; padding: 0; margin: 0; }
.chips li {
  margin: 0; font-size: .87rem; padding: .4rem .8rem; border-radius: 5px;
  background: var(--paper); border: 1px solid var(--line); color: var(--ink-soft);
}
.section--alt .chips li { background: #fff; }

/* -------------------------------------------------------------- timeline */
.tl { list-style: none; padding: 0; margin: 0; }
.tl > li {
  position: relative; padding-left: 2rem; padding-bottom: 2rem;
  border-left: 1px solid var(--line); margin: 0;
}
.tl > li:last-child { padding-bottom: 0; border-left-color: transparent; }
.tl > li::before {
  content: ""; position: absolute; left: -5px; top: .45em;
  width: 9px; height: 9px; border-radius: 50%; background: var(--accent); border: 2px solid #fff;
}
.tl__when {
  font-size: .72rem; letter-spacing: .1em; text-transform: uppercase;
  color: var(--ink-mute); font-weight: 700;
}
.tl h3 { font-size: 1.12rem; margin: .3rem 0 .4rem; }
.tl p:last-child { margin-bottom: 0; }

/* ---------------------------------------------------------------- quote -- */
.pull {
  font-family: var(--serif); font-size: clamp(1.25rem, 2.6vw, 1.6rem); line-height: 1.45;
  color: var(--ink); border-left: 3px solid var(--accent); padding-left: 1.5rem; margin: 0;
}
.section--dark .pull { color: #fff; }

/* ---------------------------------------------------------------- form -- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.15rem; }
.form-grid .full { grid-column: 1 / -1; }
@media (max-width: 680px) { .form-grid { grid-template-columns: 1fr; } }

.field label {
  display: block; font-size: .82rem; font-weight: 600; color: var(--ink);
  margin-bottom: .4rem; letter-spacing: .01em;
}
.field .req { color: var(--accent-dk); }
.field input, .field select, .field textarea {
  width: 100%; font-family: inherit; font-size: 1rem; color: var(--ink);
  padding: .72rem .85rem; border: 1px solid var(--line); border-radius: 7px;
  background: #fff; transition: border-color .15s ease, box-shadow .15s ease;
}
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--navy); box-shadow: 0 0 0 3px rgba(22,50,79,.1); outline: none;
}
.field textarea { min-height: 150px; resize: vertical; }
.field__hint { font-size: .82rem; color: var(--ink-mute); margin: .4rem 0 0; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* Demo video player */
.demo-video {
  width: 100%; display: block; background: #000;
  border-radius: var(--radius); margin-top: 1.75rem;
  border: 1px solid var(--line);
}

/* Form success / error messages */
.form-status { border-radius: var(--radius); padding: 1.75rem 1.9rem; border: 1px solid; }
.form-status h2 {
  font-family: var(--serif); font-size: 1.35rem; margin-bottom: .5rem;
}
.form-status p { font-size: .97rem; margin-bottom: 0; }
.form-status--ok  { background: #f0f7f2; border-color: #bcd9c6; }
.form-status--ok h2 { color: #1e5133; }
.form-status--err { background: #fdf2f0; border-color: #e6bdb4; }
.form-status--err h2 { color: #8c3320; }
.form-status:focus { outline: 3px solid var(--accent); outline-offset: 3px; }

/* ---------------------------------------------------------------- cta -- */
.cta { text-align: center; }
.cta h2 { color: #fff; }
.cta p { max-width: 56ch; margin-left: auto; margin-right: auto; color: #c9d4df; }
.cta .btn-row { justify-content: center; }

/* -------------------------------------------------------------- footer -- */
.site-footer {
  background: var(--navy-deep); color: #93a3b4; padding: 3.5rem 0 2rem; font-size: .92rem;
}
.site-footer a { color: #dde5ec; text-decoration: none; }
.site-footer a:hover { color: #fff; text-decoration: underline; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 2.5rem; }
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr; gap: 2rem; } }
.site-footer h2 {
  font-family: var(--sans); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase;
  color: #fff; font-weight: 700; margin-bottom: .9rem;
}
.site-footer .footer-brand {
  font-family: var(--serif); font-size: 1.3rem; color: #fff; margin-bottom: .5rem;
}
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: .55rem; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.12); margin-top: 2.5rem; padding-top: 1.5rem;
  display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; font-size: .85rem;
}

/* -------------------------------------------------------------- utility -- */
.center { text-align: center; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}