/* ==========================================================================
   Hegel & Fein — hegelandfein.com
   Light refresh of the original Squarespace design: Roboto, near-black on
   white, pill buttons, generous whitespace.
   ========================================================================== */

/* ---- Fonts (self-hosted, variable) ---- */
@font-face {
  font-family: "Roboto";
  src: url("../fonts/roboto-var.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Roboto";
  src: url("../fonts/roboto-italic-var.woff2") format("woff2");
  font-weight: 100 900;
  font-style: italic;
  font-display: swap;
}

/* ---- Tokens ---- */
:root {
  --ink: #1c1c1c;
  --ink-soft: #444;
  --paper: #ffffff;
  --grey: #f0f0ee;
  --line: #e4e4e2;
  --radius-field: 14px;
  --container: 1180px;
  --pad: clamp(1.25rem, 4vw, 2.5rem);
  --section-gap: clamp(4.5rem, 10vw, 8rem);
}

/* ---- Reset-ish ---- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Roboto", system-ui, -apple-system, "Segoe UI", sans-serif;
  font-weight: 400;
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }

h1, h2, h3, h4 {
  font-weight: 400;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0 0 0.6em;
  text-wrap: balance;
}
h1 { font-size: clamp(2.5rem, 5.5vw, 3.9rem); }
h2 { font-size: clamp(1.9rem, 3.8vw, 2.6rem); }
h3 { font-size: clamp(1.5rem, 2.8vw, 2rem); }
h4 { font-size: clamp(1.15rem, 2vw, 1.4rem); letter-spacing: -0.01em; }
p { margin: 0 0 1.1em; }
p:last-child { margin-bottom: 0; }

.container {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--pad);
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: #fff;
  padding: 0.6rem 1rem;
  z-index: 100;
}
.skip-link:focus { left: 0; }

/* ---- Header ---- */
.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}
.site-header__inner {
  max-width: var(--container);
  margin-inline: auto;
  padding: 1.1rem var(--pad);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 1rem;
}
.site-nav { display: flex; gap: 1.6rem; }
.site-nav a {
  text-decoration: none;
  font-size: 0.92rem;
  letter-spacing: 0.01em;
  padding-block: 0.2rem;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}
.site-nav a:hover { border-bottom-color: var(--ink); }
.site-nav a[aria-current="page"] { border-bottom-color: var(--ink); }
.site-logo { justify-self: center; }
.site-logo img { width: clamp(110px, 14vw, 165px); }

.nav-toggle {
  display: none;
  justify-self: end;
  background: none;
  border: 0;
  padding: 0.5rem;
  cursor: pointer;
}
.nav-toggle .bar {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--ink);
  margin: 6px 0;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

@media (max-width: 720px) {
  .site-header__inner { grid-template-columns: auto 1fr auto; }
  .site-logo { justify-self: start; order: -1; }
  .nav-toggle { display: block; }
  .site-nav {
    display: none;
    position: absolute;
    inset-inline: 0;
    top: 100%;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    gap: 0;
    padding: 0.5rem var(--pad) 1rem;
    z-index: 50;
  }
  .site-header { position: relative; }
  .site-nav.open { display: flex; }
  .site-nav a { padding-block: 0.7rem; font-size: 1.05rem; border-bottom: 0; }
  .nav-toggle[aria-expanded="true"] .bar:nth-child(1) { transform: translateY(8px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] .bar:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] .bar:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }
}

/* ---- Sections ---- */
.section { padding-block: calc(var(--section-gap) / 2); }
.section--first { padding-top: clamp(2rem, 5vw, 3.5rem); }
.section--grey { background: var(--grey); padding-block: var(--section-gap); margin-top: calc(var(--section-gap) / 2); }

/* ---- Hero (home) ---- */
.hero { padding-top: clamp(1.5rem, 4vw, 3rem); }
.hero__media {
  position: relative;
  border-radius: 4px;
  overflow: hidden;
}
.hero__media img {
  width: 100%;
  height: clamp(420px, 72vh, 640px);
  object-fit: cover;
}
.hero__text {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #fff;
  padding: var(--pad);
  background: linear-gradient(rgba(0, 0, 0, 0.18), rgba(0, 0, 0, 0.32));
}
.hero__text .kicker {
  font-size: clamp(1.05rem, 2.2vw, 1.5rem);
  font-weight: 500;
  margin: 0 0 0.4rem;
}
.hero__text h1 {
  font-weight: 500;
  margin: 0 0 0.9rem;
  font-size: clamp(2.3rem, 6vw, 4.2rem);
}
.hero__text .sub {
  font-size: clamp(0.95rem, 1.8vw, 1.15rem);
  font-weight: 500;
  letter-spacing: 0.01em;
  margin: 0;
}

/* ---- Split feature (home about section) ---- */
.feature {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
}
.feature__media { position: relative; border-radius: 4px; overflow: hidden; }
.feature__media > img { width: 100%; }
.feature__slogan {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.8rem;
  pointer-events: none;
}
.feature__slogan span {
  font-size: clamp(1.6rem, 3.4vw, 2.4rem);
  letter-spacing: -0.01em;
  padding: 0.35em 0.7em;
  width: fit-content;
}
.feature__slogan .light { background: rgba(255, 255, 255, 0.82); color: var(--ink); }
.feature__slogan .dark { background: rgba(10, 10, 10, 0.82); color: #fff; align-self: flex-end; }
.feature__body .lede { color: var(--ink-soft); }
.feature__body h2 { margin-bottom: 1rem; }

@media (max-width: 820px) {
  .feature { grid-template-columns: 1fr; }
}

/* ---- Buttons ---- */
.btn {
  display: inline-block;
  background: #000;
  color: #fafafa;
  border: 0;
  border-radius: 999px;
  padding: 1.05em 2.4em;
  font: 500 0.8rem/1 "Roboto", sans-serif;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.btn:hover { opacity: 0.82; }
.btn:active { transform: scale(0.98); }

/* ---- Contact block ---- */
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: start;
}
.contact-grid--media { align-items: center; }
.contact-grid__media { border-radius: 4px; overflow: hidden; }
.contact-grid__media img { width: 100%; }
@media (max-width: 820px) {
  .contact-grid { grid-template-columns: 1fr; }
}
.contact-intro { color: var(--ink-soft); max-width: 46ch; }

/* ---- Form ---- */
.form fieldset { border: 0; padding: 0; margin: 0 0 1.2rem; }
.form legend,
.form label {
  font-size: 0.95rem;
  font-weight: 500;
  display: block;
  margin-bottom: 0.45rem;
}
.form label .req,
.form legend .req {
  font-weight: 400;
  font-size: 0.8rem;
  color: var(--ink-soft);
  margin-left: 0.35rem;
}
.form .row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
@media (max-width: 520px) {
  .form .row { grid-template-columns: 1fr; }
}
.form input,
.form textarea {
  width: 100%;
  font: inherit;
  color: inherit;
  background: var(--paper);
  border: 1px solid var(--ink);
  border-radius: var(--radius-field);
  padding: 0.8rem 1rem;
}
.form textarea { min-height: 7.5rem; resize: vertical; }
.form input:focus-visible,
.form textarea:focus-visible,
.btn:focus-visible,
a:focus-visible,
.nav-toggle:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 2px;
}
.form .field { margin-bottom: 1.2rem; }
.form .hp { position: absolute; left: -9999px; opacity: 0; pointer-events: none; }
.form-status { margin-top: 1rem; font-weight: 500; }
.form-status[data-state="error"] { color: #a4232d; }

/* ---- Page intro (about / contact / portfolio headings) ---- */
.page-title { margin-bottom: 1.2rem; }

/* ---- About page ---- */
.prose { max-width: 72ch; }
.prose ul { padding-left: 1.2rem; margin: 0 0 1.1em; }
.prose li { margin-bottom: 0.35em; }
.about-photo { margin-top: clamp(2rem, 6vw, 4rem); }
.about-photo img { border-radius: 4px; margin-inline: auto; max-width: 900px; width: 100%; }

.founders {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 6vw, 5rem);
  margin-top: var(--section-gap);
}
.founder h2 { border-top: 1px solid var(--line); padding-top: 1.2rem; }
.founder .bio { color: var(--ink-soft); font-size: 1rem; }
.founder img { border-radius: 4px; margin-top: 1.6rem; }
@media (max-width: 720px) {
  .founders { grid-template-columns: 1fr; gap: 3rem; }
}

/* ---- Portfolio ---- */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: clamp(2rem, 5vw, 3.5rem);
}
.card { text-decoration: none; }
.card figure { margin: 0; }
.card img {
  border-radius: 4px;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  width: 100%;
  transition: opacity 0.25s ease;
}
.card:hover img { opacity: 0.85; }
.card figcaption { margin-top: 0.8rem; font-size: 1.05rem; }
.card--soon {
  border: 1px dashed var(--line);
  border-radius: 4px;
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--ink-soft);
  padding: 1.5rem;
}
.note { color: var(--ink-soft); font-style: italic; }

/* ---- XCHC case study ---- */
.tagline {
  text-align: center;
  letter-spacing: 0.35em;
  font-weight: 500;
  font-size: clamp(1rem, 2.4vw, 1.4rem);
  margin-block: var(--section-gap) 0;
}
.doc-link {
  display: inline-block;
  letter-spacing: 0.2em;
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  border: 1px solid var(--ink);
  border-radius: 999px;
  padding: 0.9em 1.8em;
  transition: background 0.2s ease, color 0.2s ease;
}
.doc-link:hover { background: var(--ink); color: #fff; }
.year-heading {
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  border-top: 1px solid var(--line);
  padding-top: 1.4rem;
  margin-top: var(--section-gap);
}
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}
.gallery figure { margin: 0; }
.gallery img { border-radius: 4px; width: 100%; aspect-ratio: 3 / 2; object-fit: cover; }
.gallery figcaption { margin-top: 0.6rem; font-size: 0.92rem; color: var(--ink-soft); }

/* ---- Footer ---- */
.site-footer {
  border-top: 1px solid var(--line);
  margin-top: var(--section-gap);
  padding-block: clamp(2.5rem, 6vw, 4rem);
}
.section--grey + .site-footer,
.site-footer--flush { margin-top: 0; }
.site-footer__inner {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--pad);
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}
.site-footer h2 { font-size: clamp(1.5rem, 3vw, 2rem); margin-bottom: 0.7rem; }
.site-footer .credit { font-size: 0.92rem; color: var(--ink-soft); }
.site-footer address {
  font-style: normal;
  font-size: 0.95rem;
  line-height: 1.9;
  text-align: right;
}
.site-footer address .addr-label { font-weight: 500; font-size: 1.05rem; }
@media (max-width: 600px) {
  .site-footer__inner { flex-direction: column; }
  .site-footer address { text-align: left; }
}

/* ---- Scroll reveal ---- */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}