/* =========================================================================
   Julia Ross — Shared components: nav, buttons, footer, cards, forms, loader
   ========================================================================= */

/* ---------- Buttons ---------- */
.btn {
  --btn-fg: var(--ink);
  --btn-bg: transparent;
  --btn-line: var(--ink);
  display: inline-flex;
  align-items: center;
  gap: 0.7em;
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--btn-fg);
  padding: 1.05em 2.1em;
  border: 1px solid var(--btn-line);
  border-radius: var(--radius);
  background: var(--btn-bg);
  position: relative;
  overflow: hidden;
  isolation: isolate;
  transition: color var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out);
}
.btn::after {
  content: "";
  position: absolute; inset: 0; z-index: -1;
  background: var(--ink);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur) var(--ease-out);
}
.btn:hover::after, .btn:focus-visible::after { transform: scaleX(1); }
.btn:hover, .btn:focus-visible { color: var(--bone); }

.btn--accent {
  --btn-fg: var(--ink);
  --btn-line: var(--rose-soft);
  background: var(--rose-soft);
}
.btn--accent::after { background: var(--ink); }
.btn--accent:hover, .btn--accent:focus-visible { color: var(--white); }

.btn--ghost-light { --btn-fg: var(--cream); --btn-line: color-mix(in srgb, var(--cream) 45%, transparent); }
.btn--ghost-light::after { background: var(--cream); }
.btn--ghost-light:hover, .btn--ghost-light:focus-visible { color: var(--ink); }

/* Text link with animated underline */
.link-underline {
  position: relative;
  color: var(--accent-strong);
  font-weight: 500;
  padding-bottom: 2px;
}
.link-underline::after {
  content: ""; position: absolute; left: 0; bottom: 0;
  width: 100%; height: 1px; background: currentColor;
  transform: scaleX(0); transform-origin: right;
  transition: transform var(--dur) var(--ease-out);
}
.link-underline:hover::after { transform: scaleX(1); transform-origin: left; }

/* ---------- Site header / nav ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  padding-block: 1.5rem;
  transition: background var(--dur) var(--ease-out),
              padding var(--dur) var(--ease-out),
              box-shadow var(--dur) var(--ease-out);
}
.site-header__inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 2rem;
}
.site-header.scrolled {
  background: color-mix(in srgb, var(--bone) 88%, transparent);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  padding-block: 0.9rem;
  box-shadow: 0 1px 0 var(--line);
}
.brand {
  font-family: var(--font-display);
  font-size: 1.6rem;
  letter-spacing: 0.02em;
  color: var(--heading);
  line-height: 1;
  display: inline-flex; align-items: baseline; gap: 0.5rem;
}
.brand small {
  font-family: var(--font-body);
  font-size: 0.6rem; font-weight: 500;
  letter-spacing: 0.34em; text-transform: uppercase;
  color: var(--accent-strong);
}

.nav { display: flex; align-items: center; gap: 2.4rem; }
.nav a {
  font-family: var(--font-body);
  font-size: 0.78rem; font-weight: 400;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--text); position: relative; padding-block: 0.3rem;
}
.nav a::after {
  content: ""; position: absolute; left: 0; bottom: 0;
  width: 100%; height: 1px; background: var(--accent);
  transform: scaleX(0); transform-origin: right;
  transition: transform var(--dur) var(--ease-out);
}
.nav a:hover::after, .nav a.active::after { transform: scaleX(1); transform-origin: left; }

.nav-toggle { display: none; width: 30px; height: 20px; position: relative; z-index: 120; }
.nav-toggle span {
  position: absolute; left: 0; width: 100%; height: 1.5px; background: var(--ink);
  transition: transform var(--dur-fast) var(--ease-out), opacity var(--dur-fast) var(--ease-out);
}
.nav-toggle span:nth-child(1) { top: 3px; }
.nav-toggle span:nth-child(2) { top: 50%; transform: translateY(-50%); }
.nav-toggle span:nth-child(3) { bottom: 3px; }
body.nav-open .nav-toggle span:nth-child(1) { top: 50%; transform: translateY(-50%) rotate(45deg); }
body.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
body.nav-open .nav-toggle span:nth-child(3) { bottom: auto; top: 50%; transform: translateY(-50%) rotate(-45deg); }

@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .nav {
    position: fixed; inset: 0; flex-direction: column; justify-content: center;
    gap: 2rem; background: var(--bone);
    clip-path: circle(0% at calc(100% - 2.5rem) 2.5rem);
    transition: clip-path 0.7s var(--ease-out);
    pointer-events: none;
  }
  body.nav-open .nav { clip-path: circle(150% at calc(100% - 2.5rem) 2.5rem); pointer-events: auto; }
  .nav a { font-size: 1.1rem; }
}

/* ---------- Footer ---------- */
.site-footer { background: var(--ink); color: var(--cream); padding-block: clamp(3.5rem, 2rem + 5vw, 6rem) 2.5rem; }
.site-footer a { color: var(--cream); }
.footer-grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 3rem;
  padding-bottom: 3rem; border-bottom: 1px solid rgba(243,235,225,0.14);
}
@media (max-width: 720px) { .footer-grid { grid-template-columns: 1fr; gap: 2rem; } }
.footer-brand { font-family: var(--font-display); font-size: 2rem; color: var(--cream); }
.footer-col h5 {
  font-family: var(--font-body); font-size: 0.72rem; font-weight: 500;
  letter-spacing: 0.28em; text-transform: uppercase; color: var(--rose);
  margin-bottom: 1.1rem;
}
.footer-col ul { list-style: none; padding: 0; display: grid; gap: 0.7rem; }
.footer-col a { opacity: 0.82; transition: opacity var(--dur-fast) var(--ease-out); }
.footer-col a:hover { opacity: 1; }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  gap: 1rem; flex-wrap: wrap; padding-top: 2rem;
  font-size: 0.78rem; letter-spacing: 0.04em; color: rgba(243,235,225,0.6);
}

/* ---------- Cards ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-out);
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.card__media { overflow: hidden; aspect-ratio: 16 / 10; background: var(--greige); }
.card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s var(--ease-out); }
.card:hover .card__media img { transform: scale(1.05); }
.card__body { padding: 1.6rem 1.7rem 1.9rem; }
.card__body h4 { margin-bottom: 0.5rem; }

/* ---------- Forms ---------- */
.field { display: grid; gap: 0.5rem; }
.field label {
  font-family: var(--font-body); font-size: 0.72rem; font-weight: 500;
  letter-spacing: 0.2em; text-transform: uppercase; color: var(--muted);
}
.field input, .field textarea {
  width: 100%; padding: 0.95rem 1.1rem;
  background: var(--surface); border: 1px solid var(--line-strong);
  border-radius: var(--radius); color: var(--ink);
  transition: border-color var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
}
.field input:focus, .field textarea:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--rose-wash);
}
.field textarea { resize: vertical; min-height: 140px; }

/* ---------- Logo strip ---------- */
.logo-strip { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: clamp(2rem, 5vw, 4.5rem); }
.logo-strip img { height: clamp(28px, 4vw, 40px); width: auto; opacity: 0.55; filter: saturate(0); transition: opacity var(--dur) var(--ease-out), filter var(--dur) var(--ease-out); }
.logo-strip img:hover { opacity: 0.9; filter: saturate(1); }

/* ---------- Media (video) grid ---------- */
.media__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.media-card .card__body h4 { margin-bottom: 0.5rem; }
.media-card .card__media { background: #14110f; }
.media-card .card__media video {
  width: 100%; height: 100%; object-fit: cover; display: block; background: #14110f;
}
/* Video cards shouldn't lift/scale on hover (interferes with the player) */
.media-card:hover { transform: none; box-shadow: var(--shadow-sm); }
.media-card .venture-card__tag {
  font-family: var(--font-body); font-size: 0.68rem; font-weight: 500;
  letter-spacing: 0.24em; text-transform: uppercase; color: var(--faint);
  display: block; margin-bottom: 0.5rem;
}
@media (max-width: 820px) { .media__grid { grid-template-columns: 1fr; } }

/* ---------- Portrait gallery (3 side by side) ---------- */
.gallery {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: clamp(1rem, 2vw, 1.5rem);
  margin-top: clamp(2rem, 4vw, 3.5rem);
}
.gallery__item {
  margin: 0; overflow: hidden; border-radius: var(--radius-lg);
  aspect-ratio: 3 / 4; background: var(--greige); box-shadow: var(--shadow);
}
.gallery__item img {
  width: 100%; height: 100%; object-fit: cover; object-position: center 22%;
  transition: transform 1.4s var(--ease-out);
}
.gallery__item:hover img { transform: scale(1.05); }
@media (max-width: 720px) { .gallery { grid-template-columns: 1fr 1fr; } }
@media (max-width: 460px) { .gallery { grid-template-columns: 1fr; } }

/* ---------- Page loader (Preux-style curtain) ---------- */
.loader {
  position: fixed; inset: 0; z-index: 1000;
  background: var(--bone);
  display: grid; place-items: center;
  transition: transform var(--dur-slow) var(--ease-out);
}
.loader__mark {
  font-family: var(--font-display); font-size: clamp(2.4rem, 8vw, 4.5rem);
  color: var(--heading); letter-spacing: 0.02em;
  opacity: 0; transform: translateY(14px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}
.loader__line {
  display: block; height: 1px; width: 0; margin: 0.8rem auto 0;
  background: var(--accent);
  transition: width var(--dur-slow) var(--ease-out) 0.15s;
}
body.is-loading { overflow: hidden; }
body.pre-reveal .loader__mark { opacity: 1; transform: none; }
body.pre-reveal .loader__line { width: min(240px, 60vw); }
body.is-loaded .loader { transform: translateY(-100%); }
body.is-loaded .loader__mark { opacity: 0; }

@media (prefers-reduced-motion: reduce) {
  .loader { display: none; }
}