/* ============================================================
   components.css
   Reusable, section-agnostic UI: navigation, buttons, chips,
   cards, modal, custom cursor.
   ============================================================ */

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: var(--z-nav);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
  padding: var(--space-4) var(--gutter);

  background: rgba(250, 248, 245, 0.72);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);

  transition: padding var(--dur) var(--ease-out),
              background var(--dur) var(--ease-out),
              border-color var(--dur) var(--ease-out),
              backdrop-filter var(--dur) var(--ease-out);
  border-bottom: 1px solid transparent;
}
.nav.is-condensed {
  padding-block: var(--space-3);
  background: color-mix(in srgb, var(--color-bg) 72%, transparent);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  backdrop-filter: saturate(140%) blur(14px);
  border-bottom-color: var(--color-border-soft);
}

.nav__brand {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: var(--tracking-tight);
  font-size: var(--step-1);
  display: inline-flex;
  align-items: baseline;
  gap: 0.15em;
}
.nav__brand .dot { color: var(--color-ocean); }

.nav__links {
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 1.6vw, 1.75rem);
}
.nav__link {
  position: relative;
  font-size: var(--step--1);
  font-weight: 500;
  color: var(--color-muted);
  padding: 0.4em 0.1em;
  transition: color var(--dur-fast) var(--ease-out);
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0.15em;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform var(--dur) var(--ease-out);
}
.nav__link:hover { color: var(--color-ink); }
.nav__link:hover::after { transform: scaleX(1); }
.nav__link.is-active { color: var(--color-ink); }
.nav__link.is-active::after {
  transform: scaleX(1);
  background: var(--color-ocean);
}

.nav__cta { display: inline-flex; }

/* Mobile menu toggle (hidden on desktop) */
.nav__toggle {
  display: none;
  width: 42px; height: 42px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
  align-items: center;
  justify-content: center;
  background: var(--color-surface);
}
.nav__toggle span,
.nav__toggle span::before,
.nav__toggle span::after {
  content: "";
  display: block;
  width: 18px; height: 1.5px;
  background: var(--color-ink);
  transition: transform var(--dur) var(--ease-out), opacity var(--dur) var(--ease-out);
}
.nav__toggle span::before { transform: translateY(-6px); }
.nav__toggle span::after  { transform: translateY(4.5px); }
.nav__toggle span { position: relative; }
body.menu-open .nav__toggle span { background: transparent; }
body.menu-open .nav__toggle span::before { transform: translateY(0) rotate(45deg); }
body.menu-open .nav__toggle span::after  { transform: translateY(-1.5px) rotate(-45deg); }

/* ---------- Buttons ---------- */
.btn {
  --btn-bg: var(--color-surface);
  --btn-fg: var(--color-ink);
  --btn-bd: var(--color-border);
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  padding: 0.85em 1.4em;
  border-radius: var(--radius-pill);
  background: var(--btn-bg);
  color: var(--btn-fg);
  border: 1px solid var(--btn-bd);
  font-size: var(--step--1);
  font-weight: 500;
  line-height: 1;
  white-space: nowrap;
  transition: transform var(--dur-fast) var(--ease-out),
              background var(--dur) var(--ease-out),
              border-color var(--dur) var(--ease-out),
              box-shadow var(--dur) var(--ease-out),
              color var(--dur) var(--ease-out);
}
.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn:active { transform: translateY(0); }

.btn--primary {
  --btn-bg: var(--color-ocean);
  --btn-fg: #fff;
  --btn-bd: var(--color-ocean);
}
.btn--primary:hover { --btn-bg: var(--color-ocean-deep); --btn-bd: var(--color-ocean-deep); }

.btn--ghost { --btn-bg: transparent; }
.btn--ghost:hover { --btn-bg: var(--color-surface); }

.btn__icon { width: 1em; height: 1em; transition: transform var(--dur) var(--ease-out); }
.btn:hover .btn__icon { transform: translateX(3px); }

/* Magnetic wrapper — JS translates the inner element toward the cursor */
.magnetic { display: inline-flex; will-change: transform; }

/* ---------- Chips (skills / meta) ---------- */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  padding: 0.55em 1em;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-ink);
  font-size: var(--step--1);
  font-weight: 500;
  transition: transform var(--dur-fast) var(--ease-out),
              border-color var(--dur) var(--ease-out),
              background var(--dur) var(--ease-out),
              color var(--dur) var(--ease-out);
}
.chip:hover {
  transform: translateY(-2px);
  border-color: var(--color-ocean);
  background: var(--color-ocean-tint);
  color: var(--color-ocean-deep);
}

/* Small meta tag (tech stack inside cards) */
.tag {
  font-size: var(--step--1);
  color: var(--color-muted);
  padding: 0.35em 0.7em;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-bg);
}

/* ---------- Card base ---------- */
.card {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--dur) var(--ease-out),
              box-shadow var(--dur) var(--ease-out),
              border-color var(--dur) var(--ease-out);
  will-change: transform;
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-border);
}

/* ---------- Modal (graphics fullscreen) ---------- */
.modal {
  position: fixed;
  inset: 0;
  z-index: var(--z-overlay);
  display: grid;
  place-items: center;
  padding: var(--gutter);
  background: color-mix(in srgb, var(--color-ink) 60%, transparent);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur) var(--ease-out), visibility var(--dur) var(--ease-out);
}
.modal.is-open { opacity: 1; visibility: visible; }
.modal__panel {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  max-width: 960px;
  width: 100%;
  max-height: 88vh;
  overflow: auto;
  transform: translateY(16px) scale(0.98);
  transition: transform var(--dur) var(--ease-out);
}
.modal.is-open .modal__panel { transform: translateY(0) scale(1); }
.modal__close {
  position: absolute;
  top: var(--space-5); right: var(--space-5);
  width: 44px; height: 44px;
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  display: grid; place-items: center;
  font-size: 1.1rem;
}

/* ---------- Custom cursor ---------- */
.cursor {
  position: fixed;
  top: 0; left: 0;
  z-index: var(--z-cursor);
  pointer-events: none;
  mix-blend-mode: multiply;
  will-change: transform;
}
.cursor__dot {
  position: absolute;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--color-ink);
  transform: translate(-50%, -50%);
}
.cursor__ring {
  position: absolute;
  width: 34px; height: 34px;
  border-radius: 50%;
  border: 1px solid var(--color-ocean);
  transform: translate(-50%, -50%);
  transition: width var(--dur) var(--ease-out),
              height var(--dur) var(--ease-out),
              background var(--dur) var(--ease-out),
              opacity var(--dur) var(--ease-out);
}
.cursor.is-hover .cursor__ring {
  width: 56px; height: 56px;
  background: var(--glow-ocean);
}
.cursor.is-hidden { opacity: 0; }

/* Hide the custom cursor where it can't help (touch / coarse pointers). */
@media (hover: none), (pointer: coarse) {
  .cursor { display: none; }
}