/* ============================================================
   Garret Keyhani, personal site
   Design language v2: "Calm Craft" (docs/03-DESIGN.md)
   Ported from App4Web's "Calm Authority, Print Edition".
   Static at rest. One accent. One exhibit. No em-dashes.
   ============================================================ */

/* ---------- 1. Tokens ---------- */
:root {
  --paper: #FAFAF8;
  --card: #FFFFFF;
  --ink: #111827;
  --ink-2: #4B5563;
  --ink-3: #6B7280;
  --accent: #008F76;
  --accent-ink: #0A6B5D;
  --band: #0A6B5D;
  --hairline: #E7E5DE;

  --font-serif: "Source Serif 4", ui-serif, Georgia, serif;
  --font-sans: "Inter", -apple-system, "Segoe UI", Roboto, ui-sans-serif, sans-serif;

  --shadow-card: 0 1px 2px rgb(17 24 39 / 0.06);
  --radius-card: 16px;
  --rail: 72rem;
}

/* ---------- 2. Reset & base ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { color-scheme: light; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 1.125rem;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}
img, svg { display: block; max-width: 100%; height: auto; }
button { font: inherit; cursor: pointer; }
ul[class], ol[class] { list-style: none; padding: 0; }
::selection { background: color-mix(in srgb, var(--accent) 18%, transparent); }
:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- 3. Type ---------- */
h1, h2, h3 { text-wrap: balance; }
h1 {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(2.4rem, 5.5vw, 4rem);
  line-height: 1.08;
  letter-spacing: -0.005em;
}
h2 {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1.8rem, 3.2vw, 2.5rem);
  line-height: 1.15;
  margin-bottom: 1.2rem;
}
h3 {
  font-size: 1.1875rem;
  font-weight: 600;
  line-height: 1.3;
  display: flex; align-items: center; gap: 0.7rem; flex-wrap: wrap;
}
p { max-width: 65ch; color: var(--ink-2); }
p strong { color: var(--ink); }
.lede { font-size: 1.25rem; line-height: 1.6; }
.label {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--ink-3);
  max-width: none;
}
.factline {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--ink-3);
  font-variant-numeric: tabular-nums;
  max-width: none;
}
a { color: inherit; }

/* Links in running copy and link rows: always underlined, accent ink. */
.panel__links a, .textlink, .quietlist a, .patents a {
  color: var(--accent-ink);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  font-weight: 500;
}
.panel__links a:hover, .textlink:hover { text-decoration-thickness: 2px; }
.panel__links { display: flex; gap: 1.4rem; flex-wrap: wrap; margin-top: 1rem; }

/* ---------- 4. Layout: bands & rail ---------- */
.rail {
  max-width: var(--rail);
  margin: 0 auto;
  padding-left: clamp(1.25rem, 4vw, 2rem);
  padding-right: clamp(1.25rem, 4vw, 2rem);
}
.band { padding-top: clamp(5rem, 10vh, 8rem); padding-bottom: clamp(5rem, 10vh, 8rem); }
.band--paper { background: var(--paper); }
.band--card { background: var(--card); border-top: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline); }
.band--teal { background: var(--band); }
.band--paper + .band--paper { border-top: 1px solid var(--hairline); }

/* ---------- 5. Components ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 48px; padding: 0.7rem 1.6rem;
  border-radius: 999px; border: 1px solid transparent;
  font-weight: 600; font-size: 1.0625rem; text-decoration: none;
  transition: background-color 150ms, border-color 150ms;
}
.btn--primary { background: var(--accent-ink); color: #FFFFFF; }
.btn--primary:hover { background: #08574B; }
.btn--secondary { background: var(--card); color: var(--ink); border-color: var(--hairline); }
.btn--secondary:hover { border-color: var(--ink-3); }
.btn--small { min-height: 42px; padding: 0.45rem 1.25rem; font-size: 1rem; }

.card {
  background: var(--card);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  transition: border-color 200ms ease, transform 200ms ease;
}
.card:hover { border-color: #D6D2C6; transform: translateY(-2px); }
.card-frame {
  background: var(--card);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}
/* Photo cards answer the cursor with a slow, quiet zoom. */
.card-frame img { transition: transform 600ms ease; }
.card-frame:hover img { transform: scale(1.02); }
@media (prefers-reduced-motion: reduce) {
  .card, .card:hover { transition: none; transform: none; }
  .card-frame img, .card-frame:hover img { transition: none; transform: none; }
}

.chip {
  display: inline-block;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--ink-2);
  border: 1px solid var(--hairline);
  background: var(--paper);
  border-radius: 999px;
  padding: 0.15rem 0.75rem;
  white-space: nowrap;
}
.chip--live {
  color: var(--accent-ink);
  border-color: color-mix(in srgb, var(--accent) 30%, transparent);
  background: color-mix(in srgb, var(--accent) 8%, transparent);
}

ul.quietlist {
  list-style: disc;
  padding-left: 1.4rem;
  margin-top: 0.9rem;
  display: grid; gap: 0.45rem;
  color: var(--ink-2);
  font-size: 1.0625rem;
}
.quietlist li::marker { color: var(--ink-3); }

.skip-link {
  position: fixed; top: -100%; left: 1rem; z-index: 200;
  background: var(--ink); color: var(--paper);
  padding: 0.6rem 1rem; border-radius: 8px; text-decoration: none;
}
.skip-link:focus { top: 1rem; }

/* ---------- 6. Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: color-mix(in srgb, var(--paper) 95%, transparent);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--hairline);
}
.nav__inner {
  max-width: var(--rail); margin: 0 auto;
  height: 64px;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 clamp(1.25rem, 4vw, 2rem);
}
.nav__wordmark {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.4rem;
  letter-spacing: -0.01em;
  text-decoration: none;
}
.nav__links { display: flex; align-items: center; gap: 1.7rem; }
.nav__links a:not(.btn) {
  text-decoration: none; font-size: 1.0625rem; font-weight: 500; color: var(--ink-2);
}
.nav__links a:not(.btn):hover { color: var(--ink); }
.nav__toggle { display: none; }

/* ---------- 7. Hero ---------- */
.hero { padding-top: clamp(3.5rem, 8vh, 6rem); }
.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: center;
}
.hero__copy .lede { margin-top: 1.4rem; }
.hero__actions { display: flex; align-items: center; gap: 1.5rem; margin-top: 2rem; flex-wrap: wrap; }
.hero .factline { margin-top: 2.2rem; }
.hero__portrait { max-width: 400px; justify-self: end; }

/* ---------- 8. Logo strip ---------- */
.logos { padding-top: 3rem; padding-bottom: 3rem; }
.logos__label {
  text-align: center;
  font-size: 0.9375rem; font-weight: 400; color: var(--ink-3);
  margin: 0 auto 1.8rem;
}
.logos__row {
  display: flex; align-items: center; justify-content: center;
  gap: clamp(2rem, 6vw, 5rem); flex-wrap: wrap;
}
.logos__row a { display: block; border-radius: 8px; }
.logos__img { filter: grayscale(1); opacity: 0.62; transition: filter 200ms, opacity 200ms; }
.logos__row a:hover .logos__img, .logos__row a:focus-visible .logos__img { filter: none; opacity: 1; }
.logos__img--capgemini { height: 40px; width: auto; }
.logos__img--hp { height: 48px; width: auto; }
.logos__img--opervu { height: 50px; width: auto; }
.logos__img--hamilton { height: 36px; width: auto; }

/* ---------- 9. Work: the career timeline ----------
   Deliberately NOT a carousel: NN/g and the Notre Dame click study show
   content beyond a carousel's first slide is rarely seen, and this section
   is the backbone. A year rail keeps all four entries visible in one scan. */
.jobs { position: relative; display: grid; gap: 1.8rem; margin-top: 1.8rem; }
.jobs::before {
  content: ""; position: absolute; left: 112px; top: 14px; bottom: 14px;
  width: 1px; background: var(--hairline);
}
.jobs__row {
  position: relative;
  display: grid; grid-template-columns: 80px 1fr; gap: 3rem;
}
.jobs__row::before {
  content: ""; position: absolute; left: 108.5px; top: 2.35rem;
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--paper);
}
.jobs__year {
  text-align: right; padding-top: 1.95rem;
  font-variant-numeric: tabular-nums;
}
.job { padding: 2rem 2.2rem; max-width: 56rem; }
.job__head { display: flex; align-items: center; gap: 1.4rem; flex-wrap: wrap; margin-bottom: 1rem; }
.job__logo--capgemini { height: 34px; width: auto; }
.job__logo--opervu { height: 44px; width: auto; }
.job p { margin-top: 0.4rem; }
.job__head .label { margin-right: auto; }
.job__head .chip { flex: none; }

/* ---------- 10. The app switcher ---------- */
.sectionintro { margin-bottom: 2.5rem; }
.switcher__tabs {
  display: flex; gap: 0.6rem; flex-wrap: wrap;
  border-bottom: 1px solid var(--hairline);
  padding-bottom: 1.2rem; margin-bottom: 2.4rem;
}
.tab {
  display: inline-flex; align-items: center; gap: 0.55rem;
  min-height: 48px; padding: 0.5rem 1.2rem;
  border-radius: 999px;
  border: 1px solid var(--hairline);
  background: var(--card);
  color: var(--ink-2);
  font-weight: 600; font-size: 1.0625rem;
  transition: border-color 150ms, background-color 150ms, color 150ms;
}
.tab img { border-radius: 7px; }
.tab:hover { border-color: var(--ink-3); }
.tab[aria-selected="true"] {
  background: color-mix(in srgb, var(--accent) 8%, var(--card));
  border-color: var(--accent);
  color: var(--accent-ink);
}

.panel {
  display: grid;
  grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: center;
}
.panel__copy h3 { font-size: 1.6rem; font-family: var(--font-serif); font-weight: 600; }
.panel__copy > p:not(.factline) { margin-top: 1.1rem; }
.panel__copy .factline { margin-top: 1.3rem; }
.panel__visual { display: flex; justify-content: center; }

/* JS cross-fade: panels stack in one grid cell, fade + settle. No-JS: stacked flow. */
html.js .switcher__panels { display: grid; }
html.js .switcher__panels .panel {
  grid-area: 1 / 1;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 220ms ease, transform 220ms ease, visibility 0s 220ms;
}
html.js .switcher__panels .panel.is-active {
  opacity: 1;
  visibility: visible;
  transform: none;
  transition: opacity 220ms ease, transform 220ms ease;
}
/* Before the script initializes, the first panel is the visible one. */
html.js .switcher__panels:not(.is-ready) .panel:first-of-type { opacity: 1; visibility: visible; transform: none; }
html.no-js .switcher__panels { display: grid; gap: 4rem; }
html.no-js .switcher__tabs { display: none; }
@media (prefers-reduced-motion: reduce) {
  html.js .switcher__panels .panel,
  html.js .switcher__panels .panel.is-active { transition: none; }
}

/* Device frame: matte near-black bezel, 55px outer radius (App4Web spec). */
.phone {
  background: #1D1F22;
  border-radius: 55px;
  padding: 13px;
  box-shadow:
    0 1px 2px rgb(17 24 39 / 0.06),
    0 24px 60px rgb(17 24 39 / 0.18),
    inset 0 0 0 1.5px rgb(255 255 255 / 0.09);
  width: min(320px, 100%);
}
/* Every screen ships at exactly 750x1625; aspect-ratio guards the frame
   against any future screenshot that drifts from that size. */
.phone > img { border-radius: 42px; aspect-ratio: 750 / 1625; object-fit: cover; }

/* ---------- 11. Teal band ---------- */
.band--teal { padding-top: clamp(4rem, 9vh, 6.5rem); padding-bottom: clamp(4rem, 9vh, 6.5rem); }
.band--teal__inner { text-align: center; }
.tealband__statement {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1.7rem, 3.4vw, 2.6rem);
  line-height: 1.25;
  color: #FFFFFF;
  max-width: 24em;
  margin: 0 auto;
  text-wrap: balance;
}
.tealband__sub {
  color: rgb(255 255 255 / 0.85);
  max-width: 46em;
  margin: 1.4rem auto 0;
  font-size: 1.0625rem;
}

/* ---------- 12. Projects ---------- */
.moveon {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  overflow: hidden;
  margin-top: 1.8rem;
}
.moveon__photo img { height: 100%; width: 100%; object-fit: cover; }
.moveon__body { padding: 2.2rem 2.4rem; }
.moveon__body p:not(.label):not(.factline) { margin-top: 1rem; }
.moveon__body .factline { margin-top: 1.1rem; }

.projgrid__label { margin-top: 3rem; }
.projgrid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.8rem; margin-top: 1rem; }
.proj { padding: 2rem 2.2rem; }
.proj h3 { margin-top: 0.5rem; }
.proj p:not(.label):not(.factline) { margin-top: 0.8rem; font-size: 1.0625rem; }
.proj .factline { margin-top: 1rem; }

.patents {
  margin-top: 3rem;
  border-top: 1px solid var(--hairline);
  padding-top: 2rem;
  max-width: 56rem;
}
.patents p:not(.label) { margin-top: 0.5rem; }

/* ---------- 13. About ---------- */
.about-row {
  display: grid;
  grid-template-columns: minmax(0, 4fr) minmax(0, 6fr);
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: center;
  margin-top: 2.5rem;
}
.about-row--flip { grid-template-columns: minmax(0, 6fr) minmax(0, 4fr); }
.about-row--flip .about__photo { order: 2; justify-self: end; }
.about-row--flip .about-row__copy { order: 1; }
.about-row__copy h3 {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 0.7rem;
}
.about__photo { position: relative; max-width: 420px; }
.about__photo figcaption {
  padding: 0.8rem 1.2rem;
  border-top: 1px solid var(--hairline);
  position: relative; z-index: 1; background: var(--card);
}
.about__school {
  display: flex; align-items: center; gap: 1.4rem;
  margin-top: 2rem; padding-top: 1.6rem;
  border-top: 1px solid var(--hairline);
}

/* ---------- 14. Contact & footer ---------- */
.contact__inner { text-align: center; }
.contact .sectionintro { margin: 0 auto; }
.contact__actions {
  display: flex; gap: 0.9rem; justify-content: center; flex-wrap: wrap;
  margin-top: 2.2rem;
}

.footer { background: var(--card); border-top: 1px solid var(--hairline); }
.footer__inner {
  display: flex; align-items: center; justify-content: space-between; gap: 1.5rem;
  flex-wrap: wrap;
  padding-top: 2.2rem; padding-bottom: 2.2rem;
  font-size: 0.9375rem; color: var(--ink-3);
}
.footer p { color: var(--ink-3); font-size: 0.9375rem; }
.footer nav { display: flex; gap: 1.4rem; flex-wrap: wrap; }
.footer nav a { color: var(--ink-2); text-decoration: none; }
.footer nav a:hover { color: var(--accent-ink); text-decoration: underline; text-underline-offset: 3px; }

/* ---------- 15. Responsive ---------- */
@media (max-width: 1023.5px) {
  .jobs::before, .jobs__row::before { display: none; }
  .jobs__row { grid-template-columns: 1fr; gap: 0; }
  .jobs__year { display: none; }
  .hero__grid { grid-template-columns: 1fr; }
  .hero__portrait { justify-self: start; max-width: 340px; }
  .panel { grid-template-columns: 1fr; gap: 2.2rem; }
  .panel__visual { justify-content: flex-start; }
  .phone { width: min(290px, 100%); }
  .moveon { grid-template-columns: 1fr; }
  .moveon__photo img { max-height: 320px; }
  .projgrid { grid-template-columns: 1fr; }
  .about-row, .about-row--flip { grid-template-columns: 1fr; }
  .about-row--flip .about__photo { order: 1; justify-self: start; }
  .about-row--flip .about-row__copy { order: 2; }
}

/* ============================================================
   Phones (≤719.5px): the mobile remodel. docs/07-MOBILE.md.
   Desktop and tablet rendering are untouched by these rules.
   ============================================================ */
@media (max-width: 719.5px) {
  /* --- Nav: wordmark + the one pill, no hamburger (parent pattern) --- */
  .nav__toggle { display: none; }
  .nav__links { display: flex; align-items: center; }
  .nav__links a:not(.btn) { display: none; }
  .nav__wordmark { font-size: 1.25rem; white-space: nowrap; }
  .nav__links .btn--small { white-space: nowrap; min-height: 40px; padding: 0.35rem 1.05rem; font-size: 0.9375rem; }

  /* --- Hero: profile pattern, portrait becomes a leading avatar --- */
  .hero { padding-top: 2.75rem; }
  .hero__grid { gap: 0; }
  .hero__portrait {
    order: -1;
    width: 96px; max-width: 96px;
    border-radius: 22px;
    margin-bottom: 1.4rem;
  }
  .hero__portrait a { display: block; }
  .hero__portrait img {
    aspect-ratio: 1 / 1;
    object-fit: cover;
    object-position: 50% 18%;
  }
  .hero__actions { margin-top: 1.6rem; }
  .hero .factline { margin-top: 1.8rem; }
  .factline__part { display: block; line-height: 1.9; }
  .factline__dot { display: none; }

  /* --- Logo strip: deliberate 2x2 grid --- */
  .logos__row {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 1.8rem 1.2rem; justify-items: center; align-items: center;
    max-width: 22rem; margin: 0 auto;
  }
  .logos__img--capgemini { height: 30px; }
  .logos__img--hp { height: 38px; }
  .logos__img--opervu { height: 38px; }
  .logos__img--hamilton { height: 27px; }

  /* --- Work cards --- */
  .job { padding: 1.6rem 1.4rem; }
  .job__head { gap: 0.9rem; margin-bottom: 0.8rem; }

  /* --- Apps: equal 2x2 tabs, centered phone --- */
  .switcher__tabs {
    display: grid; grid-template-columns: 1fr 1fr; gap: 0.6rem;
  }
  .tab { justify-content: center; padding: 0.5rem 0.6rem; }
  .panel { gap: 2rem; }
  .panel__visual { justify-content: center; }
  .phone { width: min(280px, 100%); }

  /* --- Projects --- */
  .moveon__body { padding: 1.6rem 1.4rem; }
  .proj { padding: 1.6rem 1.4rem; }

  /* --- About: contained photos, stacked school block --- */
  .about-row { gap: 1.6rem; margin-top: 2.2rem; }
  .about__photo img { max-height: 420px; object-fit: cover; }
  .about__school { flex-direction: column; align-items: flex-start; gap: 0.9rem; }

  /* --- Contact: full-width stacked actions --- */
  .contact__actions { flex-direction: column; align-items: stretch; gap: 0.8rem; }
  .contact__actions .btn { width: 100%; }

  /* --- Footer: centered, padded targets --- */
  .footer__inner { flex-direction: column; text-align: center; gap: 1rem; }
  .footer nav { justify-content: center; gap: 0.4rem 0.4rem; }
  .footer nav a { padding: 0.6rem 0.7rem; }

  /* --- Comfortable thumb targets on link rows --- */
  .panel__links { gap: 0.4rem 1.4rem; }
  .panel__links a, .textlink { padding-top: 0.5rem; padding-bottom: 0.5rem; display: inline-block; }
}

/* ---------- 16. Print ---------- */
@media print {
  .nav, .skip-link, .contact__actions button { display: none; }
  .band--teal { background: #FFFFFF; }
  .tealband__statement, .tealband__sub { color: #000000; }
  * { box-shadow: none !important; }
}