/* Components: nav, buttons, links, cards, accordions, forms, footer */

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  height: var(--header-h);
  background: color-mix(in srgb, var(--color-paper) 88%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: var(--border-soft);
}
.site-header__inner {
  height: var(--header-h);
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--space-16);
}
.brand {
  display: inline-flex; align-items: center; gap: 12px;
  text-decoration: none; white-space: nowrap;
}
.brand-logo { height: 34px; width: auto; display: block; flex: none; }
.brand-text {
  font-family: var(--font-display);
  font-size: 1.12rem; font-weight: 560; letter-spacing: -0.01em;
}
.brand-text small {
  font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--text-muted); font-weight: 500;
  display: block; line-height: 1.4;
}
@media (max-width: 899px) {
  .brand { gap: 10px; }
  .brand-logo { height: 30px; }
  .brand-text { font-size: 1rem; }
  .brand-text small { font-size: 0.56rem; }
}
.nav { display: none; }
.nav__list { display: flex; gap: 4px; list-style: none; padding: 0; }
.nav__link {
  font-size: 0.92rem; font-weight: 500; text-decoration: none;
  padding: 8px 14px; border-radius: var(--radius-pill);
  color: var(--text-secondary);
  transition: background var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out);
}
.nav__link:hover { background: rgba(23,37,54,0.06); color: var(--text-primary); }
.nav__link[aria-current="page"] { color: var(--text-primary); background: rgba(23,37,54,0.07); }
.nav__actions { display: none; align-items: center; gap: 12px; }
.menu-btn {
  display: inline-flex; align-items: center; gap: 10px;
  background: none; border: var(--border-thin); border-radius: var(--radius-pill);
  padding: 9px 16px; font-family: var(--font-mono); font-size: var(--fs-mono);
  letter-spacing: var(--ls-mono); text-transform: uppercase;
}
@media (min-width: 900px) {
  .nav, .nav__actions { display: flex; }
  .menu-btn { display: none; }
}
/* Mobile menu */
.mobile-menu {
  position: fixed; inset: 0; z-index: 150;
  background: var(--color-navy); color: var(--text-on-dark);
  padding: 20px var(--gutter) 32px;
  display: flex; flex-direction: column; gap: 8px;
  transform: translateY(-4px); opacity: 0; pointer-events: none;
  transition: opacity var(--dur-med) var(--ease-out), transform var(--dur-med) var(--ease-out);
}
.mobile-menu[data-open="true"] { opacity: 1; transform: none; pointer-events: auto; }
.mobile-menu__top { display: flex; justify-content: space-between; align-items: center; min-height: 48px; }
.mobile-menu a.m-link {
  font-family: var(--font-display); font-size: clamp(2rem, 8vw, 3rem);
  text-decoration: none; line-height: 1.1; padding: 10px 0;
  border-bottom: 1px solid var(--line-on-dark-soft);
  display: flex; justify-content: space-between; align-items: baseline;
}
.mobile-menu a.m-link span { font-family: var(--font-mono); font-size: 0.75rem; color: var(--text-on-dark-faint); }

/* ---------- Buttons ---------- */
.btn {
  --btn-bg: transparent; --btn-fg: var(--text-primary); --btn-line: var(--line-strong);
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  font-size: 0.95rem; font-weight: var(--weight-body-semi);
  padding: 14px 24px; border-radius: var(--radius-btn);
  border: 1px solid var(--btn-line);
  background: var(--btn-bg); color: var(--btn-fg);
  text-decoration: none; line-height: 1; white-space: nowrap;
  transition: transform var(--dur-instant) var(--ease-out),
    background var(--dur-fast) var(--ease-out),
    border-color var(--dur-fast) var(--ease-out),
    box-shadow var(--dur-fast) var(--ease-out);
}
.btn:hover { transform: translateY(-1px); box-shadow: var(--shadow-sm); color: var(--btn-fg); }
.btn:active { transform: translateY(0); }
.btn--primary { --btn-bg: var(--color-terracotta); --btn-fg: var(--color-paper); --btn-line: var(--color-terracotta); }
.btn--primary:hover { --btn-bg: var(--accent-strong); --btn-line: var(--accent-strong); color: var(--color-paper); }
.btn--dark { --btn-bg: var(--color-navy); --btn-fg: var(--text-on-dark); --btn-line: var(--color-navy); }
.btn--dark:hover { --btn-bg: var(--color-navy-soft); color: var(--text-on-dark); }
.btn--ghost { --btn-bg: transparent; }
.btn--ghost:hover { border-color: var(--text-primary); }
.btn--on-dark { --btn-fg: var(--text-on-dark); --btn-line: var(--line-on-dark); }
.btn--on-dark:hover { border-color: var(--text-on-dark); color: var(--text-on-dark); }
.btn--sm { padding: 10px 18px; font-size: 0.87rem; }
.btn__arrow { transition: transform var(--dur-fast) var(--ease-out); }
.btn:hover .btn__arrow { transform: translateX(3px); }

/* Text link with underline system */
.t-link {
  font-weight: var(--weight-body-semi); text-decoration: none;
  border-bottom: 1px solid var(--accent); padding-bottom: 2px;
  transition: color var(--dur-fast), border-color var(--dur-fast);
}
.t-link:hover { color: var(--accent-strong); border-color: var(--accent-strong); }

/* ---------- Service items / cards (restrained) ---------- */
.service-item__title { font-family: var(--font-display); font-size: 1.4rem; line-height: 1.15; letter-spacing: -0.01em; }
.service-item__desc { color: var(--text-secondary); font-size: 0.97rem; max-width: 36rem; }
.service-item__tags { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; padding: 0; }
.service-item__tags li {
  font-family: var(--font-mono); font-size: var(--fs-mono-sm);
  border: var(--border-soft); border-radius: var(--radius-pill);
  padding: 5px 11px; color: var(--text-muted); background: rgba(255,255,255,0.5);
}
.service-link {
  font-family: var(--font-mono); font-size: var(--fs-mono); letter-spacing: var(--ls-mono);
  text-transform: uppercase; text-decoration: none; color: var(--text-primary);
  display: inline-flex; gap: 8px; align-items: center;
}
.service-link:hover { color: var(--accent-strong); }

.card {
  border: var(--border-thin); border-radius: var(--radius-card);
  background: var(--color-paper); padding: clamp(1.5rem, 3vw, 2.25rem);
  box-shadow: var(--shadow-xs);
  transition: box-shadow var(--dur-med) var(--ease-out), transform var(--dur-med) var(--ease-out);
}
.card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.card__index { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.25rem; }

/* Project preview — editorial, not card-grid heavy */
.project {
  border-top: var(--border-thin); padding: clamp(1.75rem, 3vw, 2.5rem) 0;
  display: grid; gap: 1.25rem;
}
@media (min-width: 900px) { .project { grid-template-columns: 72px 1fr 1fr auto; align-items: start; gap: 2rem; } }
.project__thumb {
  aspect-ratio: 16/10; border: var(--border-thin); border-radius: var(--radius-sm);
  background:
    linear-gradient(180deg, rgba(23,37,54,0.04), rgba(23,37,54,0.1)),
    repeating-linear-gradient(0deg, transparent 0 23px, rgba(23,37,54,0.08) 23px 24px),
    repeating-linear-gradient(90deg, transparent 0 23px, rgba(23,37,54,0.08) 23px 24px),
    var(--color-ivory);
  position: relative; overflow: hidden;
}
.project__thumb::after {
  content: attr(data-label);
  position: absolute; left: 12px; bottom: 10px;
  font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.08em; text-transform: uppercase;
  background: var(--color-navy); color: var(--text-on-dark);
  padding: 5px 10px; border-radius: 3px;
}

/* ---------- Accordion ---------- */
.accordion { border-top: var(--border-thin); }
.accordion__item { border-bottom: var(--border-thin); }
.accordion__btn {
  width: 100%; display: grid; grid-template-columns: 1fr auto; gap: 1rem; align-items: center;
  background: none; border: 0; text-align: left;
  padding: 1.25rem 0; font-weight: var(--weight-body-semi); font-size: 1.02rem;
}
.accordion__icon {
  width: 32px; height: 32px; border: var(--border-thin); border-radius: 50%;
  display: grid; place-items: center; font-weight: 400; flex: none;
  transition: transform var(--dur-med) var(--ease-out), background var(--dur-fast);
}
.accordion__item[data-open="true"] .accordion__icon { transform: rotate(45deg); background: var(--color-navy); color: var(--text-on-dark); }
.accordion__panel { display: grid; grid-template-rows: 1fr; transition: grid-template-rows var(--dur-med) var(--ease-out); }
/* Collapsed by default only when JS runs — content stays open without JS. */
html.js .accordion__panel { grid-template-rows: 0fr; }
html.js .accordion__item[data-open="true"] .accordion__panel { grid-template-rows: 1fr; }
.accordion__inner { overflow: hidden; }
.accordion__inner p { padding-bottom: 1.4rem; color: var(--text-secondary); max-width: 44rem; }

/* ---------- Forms ---------- */
.field { display: grid; gap: 8px; margin-bottom: 1.25rem; }
.field label { font-family: var(--font-mono); font-size: var(--fs-mono); letter-spacing: var(--ls-mono); text-transform: uppercase; color: var(--text-muted); }
.field input, .field textarea, .field select {
  border: var(--border-thin); border-radius: var(--radius-sm);
  background: #fff; padding: 13px 15px; width: 100%;
  transition: border-color var(--dur-fast), box-shadow var(--dur-fast);
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(201,111,74,0.16);
}
.field textarea { min-height: 140px; resize: vertical; }

/* ---------- Footer ---------- */
.footer { background: var(--surface-dark); color: var(--text-on-dark); }
.footer__top { display: grid; gap: 2.5rem; padding-block: clamp(3.5rem, 6vw, 5.5rem) 2.5rem; }
@media (min-width: 900px) { .footer__top { grid-template-columns: 1.2fr 1fr 1fr; } }
.footer__brand { display: inline-flex; align-items: center; gap: 14px; text-decoration: none; }
.footer__brand img { height: 38px; width: auto; display: block; flex: none; }
.footer__brand span { font-family: var(--font-display); font-size: 1.5rem; line-height: 1.1; color: var(--text-on-dark); }
.footer__brand em { font-style: normal; color: var(--color-terracotta); }
.footer__nav { list-style: none; padding: 0; display: grid; gap: 10px; }
.footer__nav a { text-decoration: none; color: var(--text-on-dark-muted); font-size: 0.95rem; }
.footer__nav a:hover { color: var(--text-on-dark); }
.footer__bottom {
  border-top: 1px solid var(--line-on-dark-soft);
  padding-block: 1.5rem; display: flex; flex-wrap: wrap; gap: 12px 24px;
  justify-content: space-between; align-items: center;
}

/* Misc: pill, divider, kbd diagram */
.pill {
  font-family: var(--font-mono); font-size: var(--fs-mono-sm); letter-spacing: var(--ls-mono);
  text-transform: uppercase; border: var(--border-thin); border-radius: var(--radius-pill);
  padding: 6px 12px; display: inline-flex; gap: 8px; align-items: center; color: var(--text-muted);
}
.pill i { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); display: inline-block; }
.hr-fine { border: 0; border-top: var(--border-soft); margin: 0; }