/* ============================================================
   Components — nav, drawer, buttons, footer, cursor
   ============================================================ */

/* ── Button ───────────────────────────────────────────────── */

.btn {
  --btn-py: 0.9rem;
  --btn-px: 1.5rem;

  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.625rem;
  padding: var(--btn-py) var(--btn-px);
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: var(--text-micro);
  font-weight: 500;
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  line-height: 1;
  white-space: nowrap;
  cursor: pointer;
  overflow: hidden;
  isolation: isolate;
  transition:
    color var(--dur-micro) var(--ease),
    border-color var(--dur-micro) var(--ease),
    background-color var(--dur-micro) var(--ease);
}

.btn--sm { --btn-py: 0.7rem; --btn-px: 1.125rem; }

.btn__icon {
  display: inline-flex;
  transition: transform var(--dur) var(--ease);
}

.btn:hover .btn__icon { transform: translateX(3px); }

/* The wipe: a fill that sweeps up from the bottom edge on hover.
   Restrained, and cheaper than it looks — transform only, no repaint. */
.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform var(--dur) var(--ease);
}

.btn:hover::before { transform: scaleY(1); }

.btn--primary {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
}

/* The wipe fills with the text-safe brass, not the decorative one: this
   surface carries label text, and --on-accent only clears AA against the
   darker cut (5.87:1 vs 3.32:1). */
.btn--primary::before { background: var(--accent-strong); }
.btn--primary:hover { color: var(--on-accent); border-color: var(--accent-strong); }

.btn--secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}

.btn--secondary::before { background: var(--text); }
.btn--secondary:hover { color: var(--bg); border-color: var(--text); }

.btn--ghost {
  background: transparent;
  color: var(--text-muted);
  border-color: var(--border);
}

.btn--ghost:hover { color: var(--accent-strong); border-color: var(--accent-strong); }

.btn[disabled],
.btn[aria-disabled="true"] {
  opacity: 0.45;
  pointer-events: none;
}

@media (prefers-reduced-motion: reduce) {
  .btn::before { display: none; }
  .btn--primary:hover { background: var(--accent-strong); border-color: var(--accent-strong); }
  .btn--secondary:hover { background: var(--text); color: var(--bg); }
}

/* ── Nav ──────────────────────────────────────────────────── */

.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: var(--z-sticky);
  background: transparent;
  transition:
    background-color var(--dur) var(--ease),
    border-color var(--dur) var(--ease),
    backdrop-filter var(--dur) var(--ease);
  border-bottom: 1px solid transparent;
}

/* Glass — the only backdrop-filter in the project, and only once scrolled. */
.nav.is-stuck {
  background: var(--glass-bg);
  backdrop-filter: blur(16px) saturate(1.4);
  -webkit-backdrop-filter: blur(16px) saturate(1.4);
  border-bottom-color: var(--glass-border);
  box-shadow: var(--shadow-nav);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  height: 4.5rem;
}

.nav__brand {
  display: flex;
  align-items: baseline;
  gap: 0.625rem;
  flex: none;
}

.nav__mark {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  align-self: center;
  flex: none;
  transition: transform var(--dur) var(--ease);
}

.nav__brand:hover .nav__mark { transform: scale(1.5); }

.nav__name {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 400;
  letter-spacing: var(--tracking-tight);
  white-space: nowrap;
}

.nav__role {
  font-size: var(--text-micro);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--text-subtle);
}

.nav__links {
  display: none;
  align-items: center;
  gap: var(--space-5);
}

.nav__link {
  position: relative;
  font-size: var(--text-small);
  color: var(--text-muted);
  padding-block: 0.25rem;
  transition: color var(--dur-micro) var(--ease);
}

.nav__link::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--dur) var(--ease);
}

.nav__link:hover { color: var(--text); }

.nav__link:hover::after,
.nav__link.is-active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav__link.is-active { color: var(--text); }

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex: none;
}

.nav__theme {
  position: relative;
  display: grid;
  place-items: center;
  width: 2.375rem;
  height: 2.375rem;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-muted);
  cursor: pointer;
  transition: color var(--dur-micro) var(--ease), border-color var(--dur-micro) var(--ease);
}

.nav__theme:hover { color: var(--accent-strong); border-color: var(--accent-strong); }

.nav__theme-icon {
  position: absolute;
  display: grid;
  place-items: center;
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}

/* Show the icon for the theme you'd switch *to*. */
.nav__theme-icon--sun    { opacity: 0; transform: rotate(-90deg) scale(0.6); }
.nav__theme-icon--moon   { opacity: 1; transform: none; }

[data-theme="dark"] .nav__theme-icon--sun  { opacity: 1; transform: none; }
[data-theme="dark"] .nav__theme-icon--moon { opacity: 0; transform: rotate(90deg) scale(0.6); }

.nav__cta { display: none; }

.nav__burger {
  display: grid;
  place-items: center;
  gap: 5px;
  width: 2.375rem;
  height: 2.375rem;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color var(--dur-micro) var(--ease);
}

.nav__burger:hover { border-color: var(--accent-strong); }

.nav__burger-line {
  width: 15px;
  height: 1px;
  background: var(--text);
  transition: transform var(--dur) var(--ease);
}

.nav__burger-line:first-child { transform: translateY(-3px); }
.nav__burger-line:last-child  { transform: translateY(3px); }

.nav__progress {
  height: 1px;
  background: var(--accent);
  transform: scaleX(var(--progress, 0));
  transform-origin: left;
  will-change: transform;
}

@media (min-width: 900px) {
  .nav__inner { height: 5.25rem; }
  .nav__links { display: flex; }
  .nav__cta   { display: inline-flex; }
  .nav__burger { display: none; }
}

/* ── Drawer ───────────────────────────────────────────────── */

.drawer {
  position: fixed;
  inset: 0;
  z-index: var(--z-drawer);
}

.drawer[hidden] { display: none; }

.drawer__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(14, 17, 22, 0.4);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  opacity: 0;
  transition: opacity var(--dur) var(--ease);
}

.drawer.is-open .drawer__backdrop { opacity: 1; }

.drawer__panel {
  position: absolute;
  inset: 0 0 0 auto;
  width: min(26rem, 100%);
  display: flex;
  flex-direction: column;
  background: var(--bg);
  border-left: 1px solid var(--border);
  padding: var(--space-4) var(--space-5) var(--space-5);
  transform: translateX(100%);
  transition: transform var(--dur-slow) var(--ease);
  overflow-y: auto;
  overscroll-behavior: contain;
}

.drawer.is-open .drawer__panel { transform: none; }

.drawer__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 3rem;
  margin-bottom: var(--space-5);
}

.drawer__close {
  display: grid;
  place-items: center;
  width: 2.375rem;
  height: 2.375rem;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: color var(--dur-micro) var(--ease), border-color var(--dur-micro) var(--ease);
}

.drawer__close:hover { color: var(--accent-strong); border-color: var(--accent-strong); }

.drawer__links {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--border);
}

.drawer__link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding-block: var(--space-4);
  border-bottom: 1px solid var(--border);
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 300;
  letter-spacing: var(--tracking-tight);
  color: var(--text);
  opacity: 0;
  transform: translateX(12px);
  transition: color var(--dur-micro) var(--ease);
}

.drawer.is-open .drawer__link {
  opacity: 1;
  transform: none;
  transition:
    opacity var(--dur) var(--ease) calc(120ms + var(--i) * 50ms),
    transform var(--dur) var(--ease) calc(120ms + var(--i) * 50ms),
    color var(--dur-micro) var(--ease);
}

.drawer__link:hover { color: var(--accent-strong); }

.drawer__link-num {
  font-size: var(--text-micro);
  color: var(--text-subtle);
  flex: none;
}

.drawer__link-label { flex: 1; }

.drawer__link-arrow {
  color: var(--text-subtle);
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity var(--dur-micro) var(--ease), transform var(--dur-micro) var(--ease);
}

.drawer__link:hover .drawer__link-arrow { opacity: 1; transform: none; }
.drawer__link.is-active { color: var(--accent-strong); }

.drawer__foot {
  margin-top: auto;
  padding-top: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.drawer__cta { width: 100%; }

.drawer__contact {
  font-size: var(--text-small);
  color: var(--text-subtle);
  text-align: center;
}

.drawer__contact:hover { color: var(--accent-strong); }

@media (prefers-reduced-motion: reduce) {
  .drawer__link { opacity: 1; transform: none; }
}

@media (min-width: 900px) {
  .drawer { display: none; }
}

/* ── Footer ───────────────────────────────────────────────── */

.footer {
  border-top: 1px solid var(--border);
  padding-block: var(--space-8) var(--space-5);
  background: var(--bg);
}

.footer__top {
  display: grid;
  gap: var(--space-8);
  padding-bottom: var(--space-8);
}

.footer__statement {
  font-family: var(--font-display);
  font-size: var(--text-h2);
  font-weight: 300;
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-display);
  margin-block: var(--space-4) var(--space-5);
}

.footer__email {
  display: inline-block;
  margin-top: var(--space-4);
  font-size: var(--text-small);
  color: var(--text-subtle);
  border-bottom: 1px solid var(--border);
  padding-bottom: 2px;
  transition: color var(--dur-micro) var(--ease), border-color var(--dur-micro) var(--ease);
}

.footer__email:hover { color: var(--accent-strong); border-color: var(--accent-strong); }

.footer__nav {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr));
  gap: var(--space-5);
}

.footer__group-title { margin-bottom: var(--space-3); }

.footer__list {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  list-style: none;
  padding: 0;
}

.footer__link {
  font-size: var(--text-small);
  color: var(--text-muted);
  transition: color var(--dur-micro) var(--ease);
}

.footer__link:hover { color: var(--accent-strong); }

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding-top: var(--space-5);
}

.footer__meta {
  font-size: var(--text-micro);
  color: var(--text-subtle);
}

.footer__social {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  list-style: none;
  padding: 0;
}

.footer__social-link {
  display: grid;
  place-items: center;
  width: 2.25rem;
  height: 2.25rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-muted);
  transition: color var(--dur-micro) var(--ease), border-color var(--dur-micro) var(--ease);
}

.footer__social-link:hover { color: var(--accent-strong); border-color: var(--accent-strong); }

@media (min-width: 900px) {
  .footer__top { grid-template-columns: 1.2fr 1fr; gap: var(--space-9); }
  .footer__statement { font-size: clamp(2rem, 3vw, 3rem); }
}

/* ── Cursor ───────────────────────────────────────────────── */

.cursor {
  position: fixed;
  top: 0;
  left: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  pointer-events: none;
  z-index: var(--z-cursor);
  opacity: 0;
  transform: translate3d(-100px, -100px, 0);
  transition: opacity var(--dur) var(--ease), width var(--dur) var(--ease), height var(--dur) var(--ease);
  will-change: transform;
  mix-blend-mode: difference;
}

.cursor.is-visible { opacity: 1; }
.cursor.is-hovering { width: 32px; height: 32px; }

/* Over text: become a caret-ish bar, since hiding the system cursor also hides
   the I-beam that tells you a field is editable. */
.cursor.is-text {
  width: 2px;
  height: 22px;
  border-radius: 1px;
}

/* Hide the system cursor.
   Applied ONLY via the class main.js adds once the custom cursor is confirmed
   running — never unconditionally. If the script fails, this rule never
   matches and the visitor keeps an ordinary cursor rather than none at all.

   The `*` is required: elements with their own cursor (links get `pointer`,
   inputs get `text`) would otherwise override the body and show both. */
.has-custom-cursor,
.has-custom-cursor * {
  cursor: none !important;
}

/* Touch, coarse pointers and reduced-motion never get a custom cursor. The
   class is not added in those cases either, but this is belt and braces: on a
   hybrid laptop the media query can flip after load. */
@media (hover: none), (pointer: coarse), (prefers-reduced-motion: reduce) {
  .cursor { display: none; }

  .has-custom-cursor,
  .has-custom-cursor * {
    cursor: auto !important;
  }
}