/**
 * Reusable components: header, navigation, buttons, cursor, cards, forms, footer.
 */

/* ============================================================ HEADER / NAV */

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: var(--z-header);
  padding-block: var(--s-4);
  mix-blend-mode: difference; /* the wordmark stays legible over any image below */
  color: var(--c-paper);
  transition: transform var(--d-base) var(--e-out);
}

/* Blend mode cannot survive a solid backdrop, so the pinned state opts out. */
.site-header.is-pinned {
  mix-blend-mode: normal;
  background: var(--c-paper);
  color: var(--c-charcoal);
  border-bottom: var(--border-hair) solid var(--rule);
}

.site-header.is-hidden { transform: translateY(-100%); }

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-6);
}

.wordmark {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
}

.wordmark__mark {
  width: 10px;
  height: 10px;
  background: var(--c-accent);
  display: inline-block;
}

.nav-primary ul {
  display: flex;
  gap: var(--s-6);
  align-items: center;
}

.nav-primary a {
  font-family: var(--font-mono);
  font-size: var(--t-label);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  position: relative;
  padding-block: var(--s-1);
}

/* Underline draws from the left on hover and retracts to the right on exit. */
.nav-primary a::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--d-fast) var(--e-out);
}

.nav-primary a:hover::after,
.nav-primary a[aria-current='page']::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-toggle {
  display: none;
  width: 40px; height: 40px;
  position: relative;
  align-items: center;
  justify-content: center;
}

.nav-toggle__bar {
  position: absolute;
  width: 22px; height: 1.5px;
  background: currentColor;
  transition: transform var(--d-fast) var(--e-out), opacity var(--d-fast) var(--e-out);
}

.nav-toggle__bar:nth-child(1) { transform: translateY(-4px); }
.nav-toggle__bar:nth-child(2) { transform: translateY(4px); }

.nav-toggle[aria-expanded='true'] .nav-toggle__bar:nth-child(1) { transform: rotate(45deg); }
.nav-toggle[aria-expanded='true'] .nav-toggle__bar:nth-child(2) { transform: rotate(-45deg); }

/* Full-screen menu, mobile and tablet only. */
.nav-overlay {
  position: fixed;
  inset: 0;
  z-index: var(--z-menu);
  background: var(--c-charcoal);
  color: var(--c-paper);
  padding: var(--s-9) var(--gutter) var(--s-7);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transform: translateY(-100%);
  visibility: hidden;
}

.nav-overlay.is-open { visibility: visible; }

.nav-overlay ul {
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
}

.nav-overlay a {
  font-family: var(--font-display);
  font-size: clamp(2rem, 1.2rem + 6vw, 3.5rem);
  font-weight: 600;
  letter-spacing: var(--tracking-display);
  text-transform: uppercase;
  line-height: 1.05;
  display: block;
}

.nav-overlay__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-5);
  border-top: var(--border-hair) solid rgba(242, 241, 238, 0.2);
  padding-top: var(--s-4);
}

/* ==================================================================== CTA */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
  font-family: var(--font-mono);
  font-size: var(--t-label);
  font-weight: 500;
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  padding: var(--s-4) var(--s-6);
  border: var(--border-hair) solid currentColor;
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
  isolation: isolate;
  transition: color var(--d-fast) var(--e-out);
}

/* Fill wipes up from the bottom edge on hover. */
.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: currentColor;
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform var(--d-fast) var(--e-snap);
  z-index: -1;
}

.btn:hover::before { transform: scaleY(1); }
.btn:hover { color: var(--bg); }

.btn--solid {
  background: var(--c-charcoal);
  color: var(--c-paper);
  border-color: var(--c-charcoal);
}

.btn--solid:hover { color: var(--c-charcoal); }
.btn--solid::before { background: var(--c-paper); }

.btn--accent {
  background: var(--c-accent);
  border-color: var(--c-accent);
  color: #fff;
}

.btn--accent:hover { color: var(--c-accent); }
.btn--accent::before { background: #fff; }

.btn__arrow {
  transition: transform var(--d-fast) var(--e-overshoot);
  display: inline-block;
}

.btn:hover .btn__arrow { transform: translateX(4px); }

/* A text link that behaves like a technical annotation with an arrow. */
.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  font-family: var(--font-mono);
  font-size: var(--t-label);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  border-bottom: var(--border-hair) solid currentColor;
  padding-bottom: var(--s-1);
}

.link-arrow span { transition: transform var(--d-fast) var(--e-overshoot); }
.link-arrow:hover span { transform: translateX(5px); }

/* ================================================================= CURSOR */

/* Desktop pointer devices only — see the media query in responsive.css and the
   capability check in cursor.js. Both must agree before the cursor exists. */
.cursor {
  position: fixed;
  top: 0; left: 0;
  z-index: var(--z-cursor);
  pointer-events: none;
  mix-blend-mode: difference;
  will-change: transform;
  display: none;
}

.cursor__dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--c-paper);
  transform: translate(-50%, -50%);
  transition: width var(--d-fast) var(--e-overshoot),
              height var(--d-fast) var(--e-overshoot),
              background-color var(--d-fast) var(--e-out);
}

.cursor__label {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-charcoal);
  white-space: nowrap;
  opacity: 0;
  transition: opacity var(--d-fast) var(--e-out);
}

.cursor.is-expanded .cursor__dot { width: 88px; height: 88px; }
.cursor.is-expanded .cursor__label { opacity: 1; }

/* Hide the native pointer only once the custom cursor is actually running. */
.has-cursor,
.has-cursor a,
.has-cursor button { cursor: none; }

/* =========================================================== PROJECT CARD */

.project-card {
  position: relative;
  display: block;
  transform-style: preserve-3d;
  will-change: transform;
}

.project-card__media {
  position: relative;
  overflow: hidden;
  background: var(--c-concrete);
}

.project-card__media img {
  transition: transform var(--d-slow) var(--e-out);
  transform: scale(1.01); /* pre-scaled so the hover zoom never reveals an edge */
}

.project-card:hover .project-card__media img { transform: scale(1.06); }

.project-card__index {
  position: absolute;
  top: var(--s-4); left: var(--s-4);
  z-index: 2;
  font-family: var(--font-mono);
  font-size: var(--t-label);
  letter-spacing: 0.1em;
  color: var(--c-paper);
  mix-blend-mode: difference;
  transition: transform var(--d-base) var(--e-overshoot);
}

.project-card:hover .project-card__index { transform: translate(4px, -4px); }

.project-card__arrow {
  position: absolute;
  top: var(--s-4); right: var(--s-4);
  z-index: 2;
  width: 40px; height: 40px;
  display: grid;
  place-items: center;
  background: var(--c-paper);
  color: var(--c-charcoal);
  opacity: 0;
  transform: translate(-6px, 6px);
  transition: opacity var(--d-fast) var(--e-out), transform var(--d-fast) var(--e-overshoot);
}

.project-card:hover .project-card__arrow {
  opacity: 1;
  transform: translate(0, 0);
}

.project-card__body {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--s-4);
  padding-top: var(--s-4);
  margin-top: var(--s-4);
  border-top: var(--border-hair) solid var(--rule-strong);
}

.project-card__title {
  font-family: var(--font-display);
  font-size: clamp(1.125rem, 0.95rem + 0.8vw, 1.75rem);
  font-weight: 600;
  letter-spacing: var(--tracking-heading);
  text-transform: uppercase;
  line-height: 1.05;
}

/* Technical spec strip revealed on hover. Animating grid-template-rows keeps the
   reveal height-agnostic without measuring in JS. */
.project-card__specs {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--d-base) var(--e-out);
}

.project-card:hover .project-card__specs,
.project-card:focus-within .project-card__specs { grid-template-rows: 1fr; }

.project-card__specs-inner {
  overflow: hidden;
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2) var(--s-5);
}

.project-card__specs dt { display: none; }

.project-card__specs dd {
  font-family: var(--font-mono);
  font-size: var(--t-label);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-faint);
  padding-top: var(--s-3);
}

/* ================================================================== FORMS */

.field {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
}

.field__label {
  font-family: var(--font-mono);
  font-size: var(--t-label);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--fg-faint);
}

.field__label .req { color: var(--c-accent); }

.field input,
.field select,
.field textarea {
  background: transparent;
  border: 0;
  border-bottom: var(--border-hair) solid var(--rule-strong);
  border-radius: 0;
  padding: var(--s-3) 0;
  font-size: var(--t-body);
  color: var(--fg);
  width: 100%;
  transition: border-color var(--d-fast) var(--e-out);
  -webkit-appearance: none;
  appearance: none;
}

.field select {
  /* Chevron drawn inline so the control needs no image request. */
  background-image: linear-gradient(45deg, transparent 50%, currentColor 50%),
                    linear-gradient(135deg, currentColor 50%, transparent 50%);
  background-position: calc(100% - 12px) center, calc(100% - 7px) center;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  padding-right: var(--s-6);
}

.field textarea {
  resize: vertical;
  min-height: 7rem;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-bottom-color: var(--c-accent);
}

.field input::placeholder,
.field textarea::placeholder { color: var(--fg-faint); opacity: 1; }

.field.has-error input,
.field.has-error select,
.field.has-error textarea { border-bottom-color: #c8341c; }

.field__error {
  font-family: var(--font-mono);
  font-size: var(--t-label);
  letter-spacing: 0.06em;
  color: #c8341c;
  min-height: 1em;
}

.form-status {
  font-family: var(--font-mono);
  font-size: var(--t-small);
  letter-spacing: 0.06em;
  padding: var(--s-4);
  border: var(--border-hair) solid var(--rule-strong);
}

.form-status.is-success { border-color: var(--c-accent); color: var(--c-accent); }
.form-status.is-error { border-color: #c8341c; color: #c8341c; }

/* Honeypot. Off-screen rather than display:none so bots that check computed
   style still fill it in. */
.hp-field {
  position: absolute !important;
  left: -9999px;
  width: 1px; height: 1px;
  overflow: hidden;
}

/* ========================================================= EDITOR CONTENT */

/* Styling for anything produced by the block editor on pages and projects. */
.entry-content > * + * { margin-top: var(--s-5); }

.entry-content p,
.entry-content li {
  font-size: var(--t-body-l);
  line-height: var(--lh-body);
  color: var(--fg-muted);
  max-width: var(--measure);
}

.entry-content h2 {
  font-family: var(--font-display);
  font-size: var(--t-display-s);
  font-weight: 600;
  letter-spacing: var(--tracking-display);
  text-transform: uppercase;
  line-height: var(--lh-heading);
  margin-top: var(--s-8);
  color: var(--fg);
}

.entry-content h3 {
  font-family: var(--font-display);
  font-size: var(--t-heading);
  font-weight: 600;
  letter-spacing: var(--tracking-heading);
  text-transform: uppercase;
  margin-top: var(--s-7);
  color: var(--fg);
}

.entry-content ul,
.entry-content ol {
  padding-left: 1.4em;
  list-style: disc;
}

.entry-content ol { list-style: decimal; }
.entry-content li + li { margin-top: var(--s-2); }

.entry-content a {
  color: var(--c-accent);
  border-bottom: 1px solid currentColor;
}

.entry-content blockquote {
  border-left: 2px solid var(--c-accent);
  padding-left: var(--s-5);
  font-size: var(--t-heading);
  line-height: 1.3;
  color: var(--fg);
}

.entry-content img { margin-block: var(--s-6); }

.entry-content code,
.entry-content pre {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--bg-alt);
}

.entry-content pre {
  padding: var(--s-5);
  overflow-x: auto;
}

/* ============================================================= PAGINATION */

.pagination {
  margin-top: var(--s-9);
  padding-top: var(--s-5);
  border-top: var(--border-hair) solid var(--rule-strong);
}

.pagination .nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-3);
  align-items: center;
}

.pagination .page-numbers {
  font-family: var(--font-mono);
  font-size: var(--t-label);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  padding: var(--s-3) var(--s-4);
  border: var(--border-hair) solid var(--rule);
  transition: border-color var(--d-fast) var(--e-out), color var(--d-fast) var(--e-out);
}

.pagination .page-numbers:hover { border-color: var(--fg); }

.pagination .page-numbers.current {
  background: var(--c-accent);
  border-color: var(--c-accent);
  color: #fff;
}

/* ================================================================= FOOTER */

.site-footer {
  background: var(--c-black);
  color: var(--c-paper);
  padding-block: var(--s-9) var(--s-6);
}

.site-footer a { color: rgba(242, 241, 238, 0.7); transition: color var(--d-fast) var(--e-out); }
.site-footer a:hover { color: var(--c-paper); }

.site-footer__top {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--grid-gap);
  padding-bottom: var(--s-8);
  border-bottom: var(--border-hair) solid rgba(242, 241, 238, 0.16);
}

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-4);
  padding-top: var(--s-5);
}

.footer-col ul { display: flex; flex-direction: column; gap: var(--s-2); }

.footer-col__title {
  font-family: var(--font-mono);
  font-size: var(--t-label);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: rgba(242, 241, 238, 0.4);
  margin-bottom: var(--s-4);
}