/* ════════════════════════════════════════════════════════════════════════
   ProYA · components.css
   ────────────────────────────────────────────────────────────────────────
   Reusable: nav · button · link · card · cursor · footer
   Section-specific rules live in pages/<page>/<page>.css
   ════════════════════════════════════════════════════════════════════════ */

/* ─── Site nav · contained floating bar ───────────────────────────────
   Centered pill, ~1180px max-width, light bone substrate on every
   section. No glassmorphism / no backdrop-blur — just a hairline
   border and a subtle bg-shift when stuck. Blueprint-low radius
   (4px) keeps it on-brand with the architectural discipline.
   ─────────────────────────────────────────────────────────────────── */
.site-nav {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 32px);
  max-width: 1180px;
  z-index: var(--z-nav);

  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 32px;
  padding: 12px 14px 12px 24px;

  color: var(--ink);
  background: oklch(0.965 0.005 70 / 0.86);
  border: 1px solid var(--line-2);
  border-radius: var(--r-md);
  transition: padding var(--dur-500) var(--ease),
              background-color var(--dur-500) var(--ease),
              border-color var(--dur-500) var(--ease),
              top var(--dur-500) var(--ease);
}

/* Scroll-stuck: solid substrate + tighter padding + stronger border */
.site-nav.is-stuck {
  top: 12px;
  padding-block: 9px;
  background: var(--bg);
  border-color: var(--line);
}

/* Scroll progress hairline along the bottom inside the pill */
.site-nav__progress {
  position: absolute;
  left: 12px; right: 12px;
  bottom: 4px;
  height: 1px;
  z-index: 1;
  pointer-events: none;
  background: transparent;
}
.site-nav__progress-fill {
  height: 100%;
  width: 0%;
  background: var(--signal);
  transition: width 80ms linear;
  transform-origin: left;
}

.site-nav__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
}
.site-nav__brand-logo {
  height: 32px;
  width: auto;
  display: block;
  transition: height var(--dur-500) var(--ease);
}
.site-nav.is-stuck .site-nav__brand-logo { height: 28px; }
@media (max-width: 540px) {
  .site-nav__brand-logo { height: 26px; }
}

.site-nav__menu {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2px;
  list-style: none;
}
.site-nav__link {
  position: relative;
  font-family: var(--ff-display);
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-2);
  letter-spacing: -0.003em;
  padding: 8px 14px;
  transition: color var(--dur-300) var(--ease);
}
.site-nav__link::before {
  content: "";
  position: absolute;
  left: 14px; right: 14px;
  bottom: 2px;
  height: 1px;
  background: var(--signal);
  opacity: 0;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-500) var(--ease),
              opacity var(--dur-300) var(--ease);
}
.site-nav__link:hover { color: var(--ink); }
.site-nav__link:hover::before  { opacity: 1; transform: scaleX(1); }
.site-nav__link.is-active      { color: var(--ink); }
.site-nav__link.is-active::before { opacity: 1; transform: scaleX(1); }

.site-nav__right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.site-nav__cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 14px 9px 14px;
  border-radius: calc(var(--r-md) - 2px);
  background: var(--ink);
  color: var(--bg);
  font-family: var(--ff-display);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: -0.003em;
  transition: background-color var(--dur-300) var(--ease),
              color var(--dur-300) var(--ease);
}
.site-nav__cta svg {
  width: 12px; height: 12px;
  stroke: currentColor; stroke-width: 1.6; fill: none;
  transition: transform var(--dur-300) var(--ease);
}
.site-nav__cta:hover svg { transform: translateX(3px); }
.site-nav__cta:hover {
  background: var(--signal);
  color: var(--ink-on-signal);
}
.site-nav__cta-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--signal);
}
.site-nav__cta:hover .site-nav__cta-dot {
  background: var(--ink-on-signal);
}

.site-nav__burger {
  display: none;
  width: 38px;
  height: 38px;
  align-items: center;
  justify-content: center;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: calc(var(--r-md) - 2px);
  background: transparent;
  transition: border-color var(--dur-300) var(--ease),
              background-color var(--dur-300) var(--ease);
}
.site-nav__burger:hover { border-color: var(--ink); background: var(--bg-2); }
.site-nav__burger svg {
  width: 14px; height: 14px;
  stroke: currentColor;
  stroke-width: 1.6;
  fill: none;
}
@media (max-width: 960px) {
  .site-nav {
    grid-template-columns: auto 1fr auto auto;
    gap: 12px;
    padding: 8px 8px 8px 16px;
  }
  .site-nav__menu { display: none; }
  .site-nav__burger { display: inline-flex; }
}
@media (max-width: 540px) {
  .site-nav { top: 10px; width: calc(100% - 20px); }
  .site-nav.is-stuck { top: 8px; }
  .site-nav__cta span:not(.site-nav__cta-dot) { display: none; }
  .site-nav__cta { padding: 9px 12px; }
}

/* ─── Mobile menu drawer ─────────────────────────────────────────────
   Bulletproof hiding: visibility + opacity + transform.
   Desktop (≥901px) hides entirely via display:none — drawer is mobile-only.
   ─────────────────────────────────────────────────────────────────── */
.nav-drawer {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 60;
  background: var(--bg-deep);
  color: var(--ink-bone);
  display: flex;
  flex-direction: column;
  padding: 88px var(--container-padding) 36px;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  /* Hidden state — three independent guards */
  visibility: hidden;
  opacity: 0;
  transform: translateY(-100%);
  pointer-events: none;
  transition:
    transform 0.7s var(--ease),
    opacity 0.4s var(--ease),
    visibility 0s linear 0.4s;
}
.nav-drawer.is-open {
  visibility: visible;
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
  transition:
    transform 0.7s var(--ease),
    opacity 0.4s var(--ease),
    visibility 0s linear 0s;
}
/* Desktop: drawer never needed (full nav menu is visible) */
@media (min-width: 901px) {
  .nav-drawer { display: none; }
}
.nav-drawer__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--line-dark);
}
.nav-drawer__head img { height: 26px; filter: brightness(0) invert(1); }
.nav-drawer__close {
  width: 40px; height: 40px;
  border: 1px solid var(--line-dark);
  border-radius: var(--r-btn);
  color: var(--ink-bone);
  display: inline-flex; align-items: center; justify-content: center;
}
.nav-drawer__close svg { width: 14px; height: 14px; stroke: currentColor; stroke-width: 1.6; fill: none; }
.nav-drawer__menu {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-top: 32px;
}
.nav-drawer__menu a {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding-block: 16px;
  border-bottom: 1px solid var(--line-dark);
  font-family: var(--ff-display);
  font-size: 28px;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--ink-bone);
}
.nav-drawer__menu a span {
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--ink-3);
  text-transform: uppercase;
}
.nav-drawer__menu a:hover { color: var(--signal); }
.nav-drawer__foot {
  margin-top: auto;
  padding-top: 32px;
  display: flex;
  justify-content: space-between;
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--ink-3);
  text-transform: uppercase;
}

/* ─── Buttons ────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 14px 20px;
  border-radius: var(--r-btn);
  font-family: var(--ff-display);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: -0.005em;
  border: 1px solid transparent;
  transition: background-color var(--dur-300) var(--ease),
              color var(--dur-300) var(--ease),
              border-color var(--dur-300) var(--ease),
              transform var(--dur-300) var(--ease);
  will-change: transform;
  white-space: nowrap;
  position: relative;
}
.btn:hover { transform: translateY(-2px); }

.btn--primary {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.06);
}
.btn--primary:hover {
  background: var(--signal);
  border-color: var(--signal);
  color: var(--ink-on-signal);
}
.btn--primary--signal {
  background: var(--signal);
  border-color: var(--signal);
  color: var(--ink-on-signal);
}
.btn--primary--signal:hover {
  background: var(--signal-deep);
  border-color: var(--signal-deep);
}

.btn--ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}
.btn--ghost:hover {
  border-color: var(--ink);
}
.section--dark .btn--ghost,
[data-nav-section="dark"] .btn--ghost {
  color: var(--ink-bone);
  border-color: var(--line-dark);
}
.section--dark .btn--ghost:hover,
[data-nav-section="dark"] .btn--ghost:hover { border-color: var(--ink-bone); }

.btn__arrow {
  width: 14px; height: 14px;
  stroke: currentColor;
  stroke-width: 1.5;
  fill: none;
  transition: transform var(--dur-300) var(--ease);
}
.btn:hover .btn__arrow { transform: translateX(4px); }

/* ─── Inline links ───────────────────────────────────────────────────── */
.link {
  display: inline;
  background-image: linear-gradient(to right, var(--signal), var(--signal));
  background-size: 0% 1px;
  background-repeat: no-repeat;
  background-position: 0 100%;
  transition: background-size var(--dur-500) var(--ease),
              color var(--dur-300) var(--ease);
  padding-bottom: 2px;
}
.link:hover {
  background-size: 100% 1px;
  color: var(--signal-deep);
}

/* ─── Section header (mono ID + title) ───────────────────────────────── */
.sec-head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-items: end;
  margin-bottom: clamp(48px, 6vw, 80px);
}
@media (min-width: 900px) {
  .sec-head {
    grid-template-columns: 1fr 2fr;
    gap: 64px;
  }
}
.sec-head__id {
  font-family: var(--ff-mono);
  font-size: var(--fs-eyebrow);
  letter-spacing: var(--tracking-eyebrow);
  color: var(--ink-3);
  text-transform: uppercase;
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-self: start;
  padding-top: 8px;
  border-top: 1px solid var(--line);
}
.section--dark .sec-head__id { border-top-color: var(--line-dark); }
.sec-head__id-num { color: var(--ink); font-weight: 500; }
.section--dark .sec-head__id-num { color: var(--ink-bone); }

.sec-head__title {
  font-family: var(--ff-display);
  font-weight: 600;
  font-size: var(--fs-h2);
  line-height: var(--lh-head);
  letter-spacing: -0.025em;
  color: var(--ink);
  text-wrap: balance;
}
.section--dark .sec-head__title { color: var(--ink-bone); }

/* ─── Footer ─────────────────────────────────────────────────────────── */
.site-foot {
  background: var(--bg-deep);
  color: var(--ink-bone);
  padding-block: clamp(72px, 9vw, 128px) 32px;
  position: relative;
}

/* Massive editorial wordmark across the top edge */
.site-foot__type-band {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-bottom: clamp(56px, 7vw, 88px);
  padding-bottom: clamp(48px, 6vw, 72px);
  border-bottom: 1px solid var(--line-dark);
}
.site-foot__type-mark {
  flex: 1;
  font-family: var(--ff-display);
  font-weight: 600;
  font-size: clamp(56px, 11vw, 168px);
  line-height: 0.88;
  letter-spacing: -0.045em;
  color: var(--ink-bone);
  text-wrap: balance;
}
.site-foot__type-mark .serif-i {
  letter-spacing: 0;
  color: oklch(0.94 0.020 60);
}
.site-foot__type-meta {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
  text-align: right;
}
.site-foot__type-meta strong { color: var(--ink-bone); font-weight: 500; }
@media (max-width: 720px) {
  .site-foot__type-band { flex-direction: column; align-items: flex-start; gap: 20px; }
  .site-foot__type-meta { align-items: flex-start; text-align: left; }
}

.site-foot__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 56px;
  padding-bottom: 56px;
  border-bottom: 1px solid var(--line-dark);
}
@media (min-width: 800px) {
  .site-foot__grid {
    grid-template-columns: 1.5fr 1fr 1fr 1.1fr;
    gap: 48px;
  }
}
.site-foot__col h4 {
  font-family: var(--ff-mono);
  font-size: var(--fs-hud);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 18px;
}
.site-foot__col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.site-foot__col a {
  color: var(--ink-bone);
  font-size: 14px;
  letter-spacing: -0.005em;
  transition: color var(--dur-300) var(--ease);
}
.site-foot__col a:hover { color: var(--signal); }

/* Type-only logo lockup (footer brand) — clean, no raster artifacts */
.site-foot__lockup {
  display: flex;
  flex-direction: column;
  gap: 24px;
  max-width: 38ch;
}
.site-foot__lockup-brand {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line-dark);
}
.site-foot__lockup-wordmark {
  font-family: var(--ff-display);
  font-weight: 600;
  font-size: clamp(36px, 4vw, 52px);
  line-height: 0.92;
  letter-spacing: -0.04em;
  color: var(--ink-bone);
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
}
.site-foot__lockup-wordmark .serif-i {
  letter-spacing: 0;
  color: oklch(0.94 0.020 60);
  font-weight: 400;
  margin-inline: 0.02em;
}
.site-foot__lockup-wordmark sup {
  font-family: var(--ff-mono);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.2em;
  color: var(--signal);
  margin-left: 6px;
  top: -1.6em;
  position: relative;
}
.site-foot__lockup-rule {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.site-foot__lockup-rule::before {
  content: "";
  flex: 0 0 28px;
  height: 1px;
  background: var(--signal);
}
.site-foot__lockup p {
  font-size: 14px;
  line-height: 1.6;
  color: oklch(0.78 0.010 65);
  max-width: 38ch;
}

.site-foot__contact-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
  padding-top: 14px;
}
.site-foot__contact-row .site-ticker__dot { margin-right: 4px; }
.site-foot__contact-row strong { color: var(--ink-bone); font-weight: 500; }

.site-foot__base {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 24px;
  padding-top: 28px;
  align-items: center;
}
.site-foot__base .mono { color: var(--ink-3); }
.site-foot__base .mono:last-child { text-align: right; }
.site-foot__base .mono.center { text-align: center; }
@media (max-width: 720px) {
  .site-foot__base { grid-template-columns: 1fr; }
  .site-foot__base .mono { text-align: left !important; }
}

/* ─── Cursor ─────────────────────────────────────────────────────────── */
.cursor {
  position: fixed;
  top: 0; left: 0;
  pointer-events: none;
  z-index: var(--z-cursor);
  mix-blend-mode: difference;
}
.cursor__dot,
.cursor__halo {
  position: absolute;
  top: 0; left: 0;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}
.cursor__dot {
  width: 6px;
  height: 6px;
  background: #F4F1ED; /* opaque bone, blends via mix-blend-mode */
  transition: opacity var(--dur-300) var(--ease);
}
.cursor__halo {
  width: 36px;
  height: 36px;
  border: 1px solid #F4F1ED;
  transition: width var(--dur-500) var(--ease),
              height var(--dur-500) var(--ease),
              opacity var(--dur-500) var(--ease),
              background-color var(--dur-300) var(--ease);
}
.cursor.is-link .cursor__halo {
  width: 72px; height: 72px;
}
.cursor.is-link .cursor__dot { opacity: 0; }
.cursor.is-hidden { opacity: 0; }
@media (pointer: coarse) {
  .cursor { display: none; }
}

/* ─── Page transition overlay ────────────────────────────────────────── */
.page-cover {
  position: fixed;
  inset: 0;
  background: var(--bg-deep);
  z-index: 200;
  pointer-events: none;
  transform-origin: top center;
}