/* ===========================================================================
   STEPHEN PEASLEY — LEARNING STRATEGY & TECHNOLOGY  ·  styles.css
   =========================================================================== */

:root {
  /* --- Color (cool, considered — a studio/blueprint feel) --- */
  --bg:        #f1f3f0;   /* page background */
  --bg-panel:  #e7eae5;   /* recessed panels */
  --ink:       #1b231f;   /* primary text */
  --muted:     #565f58;   /* secondary text */
  --faint:     #5b6359;   /* labels, meta */
  --line:      #d6dbd2;   /* hairlines */
  --accent:    #2b557d;   /* steel blue */

  /* --- Type --- */
  --serif: 'Ovo', Georgia, 'Times New Roman', serif;
  --sans:  'Hanken Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --mono:  ui-monospace, 'SF Mono', 'Cascadia Code', Menlo, Consolas, monospace;

  /* --- Layout --- */
  --maxw: 1080px;
  --readw: 680px;
  --pad: clamp(1.25rem, 5vw, 3rem);
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--bg); }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.125rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { display: block; max-width: 100%; }
a { color: inherit; }
::selection {
    background: var(--faint);
    color: var(--bg);
}

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

/* --- Skip link --- */
.skip-link {
  position: absolute;
  left: 0.75rem;
  top: -3rem;
  z-index: 50;
  background: var(--ink);
  color: var(--bg);
  font-family: var(--sans);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.7rem 1.1rem;
  border-radius: 2px;
  text-decoration: none;
  transition: top 0.2s ease;
}
.skip-link:focus { top: 0.75rem; }

/* ===========================================================================
   TOP NAV 
   =========================================================================== */
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(120%) blur(8px);
  border-bottom: 1px solid var(--line);
}
.topbar__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0.85rem var(--pad);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
}
.topbar__name {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  text-decoration: none;
  white-space: nowrap;
}
.topbar__nav {
  display: flex;
  gap: clamp(0.9rem, 2.5vw, 1.8rem);
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.topbar__nav a {
  color: var(--muted);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.topbar__nav a:hover { color: var(--ink); border-color: var(--accent); }

/* ===========================================================================
   HERO
   =========================================================================== */
.hero {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(3rem, 9vw, 6rem) var(--pad) clamp(2.5rem, 6vw, 4rem);
}
.eyebrow {
  font-family: var(--mono);
  font-size: 0.74rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 1.6rem;
}
.hero__name {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--faint);
  margin: 0 0 1.4rem;
}
.hero__lead {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(1.9rem, 4.6vw, 3.2rem);
  line-height: 1.18;
  letter-spacing: -0.01em;
  margin: 0 0 1.6rem;
  max-width: 18ch;
}
.hero__sub {
  font-size: clamp(1.1rem, 2.2vw, 1.35rem);
  line-height: 1.5;
  color: var(--muted);
  max-width: 46ch;
  margin: 0 0 2.2rem;
}
.hero__sub .junction { font-style: italic; }
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.4rem;
}

/* ===========================================================================
   BUTTONS
   =========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--sans);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1;
  white-space: nowrap;
  padding: 0.8rem 1.4rem;
  border-radius: 2px;
  text-decoration: none;
  border: 1px solid var(--ink);
  min-height: 44px;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.1s ease;
}
.btn--sm { padding: 0.6rem 1rem; font-size: 0.78rem; min-height: 0; }
.btn--solid { background: var(--ink); color: var(--bg); }
.btn--solid:hover { background: var(--accent); border-color: var(--accent); }
.btn--ghost { background: transparent; color: var(--ink); }
.btn--ghost:hover { background: var(--ink); color: var(--bg); }
.btn:active { transform: translateY(1px); }

/* ===========================================================================
   SECTIONS
   =========================================================================== */
.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(2.5rem, 6vw, 4.5rem) var(--pad);
  border-top: 1px solid var(--line);
  display: grid;
  gap: clamp(1.25rem, 4vw, 2.5rem);
  grid-template-columns: 180px 1fr;
}
.section__label {
  font-family: var(--mono);
  font-size: 0.74rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--faint);
  margin: 0.4rem 0 0;
}
.section__body { max-width: var(--readw); }
.section--wide .section__body { max-width: none; }

.prose p { margin: 0 0 1.2rem; }
.prose p:last-child { margin-bottom: 0; }
.prose a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--accent);
  padding-bottom: 1px;
  transition: color 0.2s ease;
}
.prose a:hover { color: var(--accent); }

/* ===========================================================================
   APPROACH 
   =========================================================================== */
.approach {
  display: grid;
  gap: clamp(1.5rem, 3vw, 2rem);
  grid-template-columns: repeat(3, 1fr);
  counter-reset: step;
}
.step {
  position: relative;
  padding-top: 1.6rem;
  border-top: 2px solid var(--ink);
}
.step__num {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin: 0 0 0.9rem;
}
.step__title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 1.55rem;
  line-height: 1.1;
  margin: 0 0 0.7rem;
}
.step__body {
  margin: 0;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--muted);
}

/* ===========================================================================
   WORK
   =========================================================================== */
.work__list { display: grid; gap: 1.5rem; }

.work {
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--bg);
  padding: clamp(1.4rem, 3vw, 2rem);
  transition: border-color 0.2s ease, transform 0.15s ease;
}
.work:hover { border-color: color-mix(in srgb, var(--accent) 45%, var(--line)); }

.work--featured {
  background: var(--bg-panel);
  border-left: 3px solid var(--accent);
}
.work__kicker {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 0.7rem;
}
.work__title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(1.5rem, 3vw, 2rem);
  line-height: 1.12;
  margin: 0 0 0.4rem;
}
.work__title a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid var(--accent);
  transition: color 0.2s ease;
}
.work__title a:hover { color: var(--accent); }
.work__meta {
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: var(--faint);
  margin: 0 0 1rem;
}
.work__body {
  margin: 0;
  font-size: 1.02rem;
  line-height: 1.6;
  color: var(--muted);
}
.work__body + .work__body { margin-top: 0.8rem; }
.work--featured .work__title { font-size: clamp(1.7rem, 3.4vw, 2.3rem); }

/* The three supporting items sit in a responsive two-up grid below the feature */
.work__grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(2, 1fr);
}
.work__grid .work:last-child:nth-child(odd) { grid-column: 1 / -1; }

/* ===========================================================================
   CONTACT
   =========================================================================== */
.contact { margin: 0; }
.contact__row {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 1rem;
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--line);
}
.contact__row:last-child { border-bottom: none; }
.contact dt {
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--faint);
  padding-top: 0.15rem;
}
.contact dd {
  margin: 0;
  font-size: 1.1rem;
  overflow-wrap: anywhere;
}
.contact a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 1px;
  transition: border-color 0.2s ease, color 0.2s ease;
}
.contact a:hover { color: var(--accent); border-color: var(--accent); }

.contact-form__honeypot {
  position: absolute;
  left: -9999px;
  visibility: hidden;
}
.contact-form {
  margin-top: 2.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 1.25rem;
}
/* grid above overrides the UA [hidden] rule, so hiding on submit needs this */
.contact-form[hidden] { display: none; }
.contact-form__row { display: grid; gap: 0.45rem; }
.contact-form label {
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--faint);
}
.contact-form input,
.contact-form textarea {
  width: 100%;
  font-family: var(--serif);
  font-size: 1.05rem;
  line-height: 1.5;
  color: var(--ink);
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 0.7rem 0.85rem;
  transition: border-color 0.2s ease, background 0.2s ease;
  -webkit-appearance: none;
  appearance: none;
}
.contact-form textarea { resize: vertical; min-height: 8rem; }
.contact-form input::placeholder,
.contact-form textarea::placeholder { color: var(--muted); }
.contact-form input:hover,
.contact-form textarea:hover { border-color: #c4cabe; }
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--bg);
}
.contact-form button[type="submit"] {
  justify-self: start;
  margin-top: 0.25rem;
  cursor: pointer;
}
.contact-form button[type="submit"]:disabled { opacity: 0.6; cursor: default; }

.contact-form__success {
  margin-top: 2.5rem;
  padding: 2rem 1.75rem;
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  background: var(--bg-panel);
  border-radius: 2px;
}
.contact-form__success[hidden] { display: none; }
.contact-form__success:focus { outline: none; }
.contact-form__success h3 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 1.4rem;
  margin: 0 0 0.4rem;
}
.contact-form__success p {
  font-family: var(--sans);
  font-size: 0.95rem;
  color: var(--muted);
  margin: 0;
}

/* ===========================================================================
   FOOTER
   =========================================================================== */
.footer {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 2.5rem var(--pad) 3rem;
  border-top: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}
.footer__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: var(--faint);
}
.footer__row span, .footer__top { white-space: nowrap; }
.footer__top { color: var(--muted); text-decoration: none; transition: color 0.2s ease; }
.footer__top:hover { color: var(--accent); }

/* --- Brain --- */
.footer__egg {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
}
.egg__brain {
  border: 0;
  background: none;
  padding: 0.25rem;
  cursor: pointer;
  line-height: 0;
  border-radius: 50%;
}
.egg__brain svg {
  width: 1.8rem;
  height: 1.8rem;
  fill: var(--muted);
  transition: fill 0.3s ease;
}
.egg__brain:hover svg,
.egg__brain[aria-expanded="true"] svg { fill: var(--accent); }

.egg__info {
  position: absolute;
  top: 50%;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.45s ease, transform 0.45s ease;
}
.egg__info--status {
  right: 50%;
  margin-right: 2rem;
  text-align: right;
  transform: translate(0.5rem, -50%);
}
.egg__info--mri {
  left: 50%;
  margin-left: 2rem;
  text-align: left;
  transform: translate(-0.5rem, -50%);
}
.footer__egg.is-open .egg__info { opacity: 1; transform: translate(0, -50%); }

.egg__heading {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--faint);
}
.egg__value {
  font-family: var(--serif);
  font-size: 1.25rem;
  line-height: 1;
  color: var(--ink);
}

@media (prefers-reduced-motion: reduce) {
  .egg__brain svg { transition: none; }
  .egg__info { transition: opacity 0.2s ease; }
  .egg__info--status, .egg__info--mri { transform: translate(0, -50%); }
}

/* ===========================================================================
   REVEAL
   =========================================================================== */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: none; }
}
.js .reveal { opacity: 0; animation: fadeUp 0.7s ease both; }
.js .section.reveal { animation-delay: 0.05s; }

@media (prefers-reduced-motion: reduce) {
  .js .reveal { opacity: 1; animation: none; }
  html { scroll-behavior: auto; }
}

/* ===========================================================================
   RESPONSIVE
   =========================================================================== */
@media (max-width: 760px) {
  body { font-size: 1.06rem; }

  .section { grid-template-columns: 1fr; gap: 1rem; }

  .approach { grid-template-columns: 1fr; gap: 1.75rem; }

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

  .topbar__nav { gap: 0.95rem; }
  .contact__row { grid-template-columns: 1fr; gap: 0.2rem; }

}

@media (max-width: 460px) {
  .topbar__name { display: none; }
  .topbar__inner { justify-content: center; }
  .topbar__nav { flex-wrap: wrap; justify-content: center; gap: 0.75rem 1.1rem; }
}