/* ============================================================
   components.css — buttons, banners, tags, cursor, status,
   link-arrow. Faithful to the source (button-wrapper variants,
   .banner, .tag-variant-*, .cursor-*).
   ============================================================ */

/* --- Buttons ---------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 48px;
  padding: 0 26px;
  border-radius: var(--radius-pill);
  font-size: var(--fs-sm);
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  white-space: nowrap;
  transition:
    background-color var(--dur-fast) var(--ease-out),
    color var(--dur-fast) var(--ease-out),
    border-color var(--dur-fast) var(--ease-out),
    transform var(--dur) var(--ease-smooth);
}
.btn:active {
  transform: scale(0.97);
}
.btn--sm { height: 38px; padding: 0 18px; }
.btn--lg { height: 52px; padding: 0 34px; }

.btn--solid {
  background: var(--orange);
  color: var(--accent-text);
}
.btn--solid:hover {
  background: var(--ink);
  color: var(--white);
}

.btn--ghost {
  border: 2px solid var(--line);
  color: var(--text);
}
.btn--ghost:hover {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--white);
}

.btn--light {
  background: var(--cyan-text);
  color: var(--blue-500);
}
.btn--light:hover {
  background: var(--white);
}

.btn svg {
  width: 16px;
  height: 16px;
  transition: transform var(--dur) var(--ease-smooth);
}
.btn:hover svg { transform: translate(2px, -2px); }

/* --- Rotated banner label (source: .banner) --------------- */

.banner {
  display: inline-block;
  padding: 4px 12px;
  background: #263c70;                      /* .banner-background */
  box-shadow: 0 0 0 4px var(--beige-400);   /* .banner-background outline */
  color: var(--white);
  font-family: var(--font-mono);
  font-size: var(--fs-xxs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transform: rotate(-4deg);
}
.banner--sm { padding: 2px 8px; }

/* --- Status ("available" dot) ------------------------------ */

.status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.status i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #47b881;
  box-shadow: 0 0 0 0 rgb(71 184 129 / 0.5);
  animation: status-pulse 2.4s infinite;
}
@keyframes status-pulse {
  0%   { box-shadow: 0 0 0 0 rgb(71 184 129 / 0.5); }
  70%  { box-shadow: 0 0 0 6px rgb(71 184 129 / 0); }
  100% { box-shadow: 0 0 0 0 rgb(71 184 129 / 0); }
}

/* --- Tag pills (source: .tag-variant-*) -------------------- */

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.tag {
  display: inline-flex;
  align-items: center;
  border-radius: var(--radius-pill);
  padding: 6px 13px;
  border: 2px solid transparent;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.03em;
  background: var(--beige-400);
  color: var(--ink);
}

.tag--c       { background: var(--blue-400);    color: #fff; }
.tag--java    { background: #ce4036;            color: #fff; }
.tag--js      { background: #ffdf4f;            color: #362d03; }
.tag--web     { background: #61dafb;            color: #0f2e36; }
.tag--node    { background: #237d23;            color: #fff; }
.tag--elec    { background: #2674a4;            color: #fff; }
.tag--three   { background: #ed9c55;            color: #492708; }
.tag--robot   { background: var(--cyan-500);    color: #fff; }
.tag--linux   { background: #2c2f2c;            color: #fff; }
.tag--git     { background: #fff;               color: #000; border-color: var(--line); }
.tag--outline { background: transparent;         border-color: var(--line); color: var(--ink); }

/* --- Inline arrow link ------------------------------------- */

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: var(--fs-sm);
  letter-spacing: 0.02em;
  color: var(--text);
}
.link-arrow svg {
  width: 15px;
  height: 15px;
  transition: transform var(--dur) var(--ease-smooth);
}
.link-arrow:hover svg { transform: translate(2px, -2px); }

/* --- Custom cursor (desktop only, source: .cursor-*) ------- */

.cursor {
  position: fixed;
  top: 0;
  left: 0;
  z-index: var(--z-cursor);
  pointer-events: none;
  display: none;
}
@media (hover: hover) and (pointer: fine) {
  html.has-cursor .cursor { display: block; }
}

.cursor__ring {
  width: 26px;
  height: 26px;
  margin: -13px 0 0 -13px;
  border: 3px solid var(--ink);
  border-radius: 50%;
  opacity: 0;
  transition: opacity var(--dur-fast) ease, transform var(--dur-fast) ease,
    background-color var(--dur-fast) ease, border-color var(--dur-fast) ease;
}
html.has-cursor .cursor__ring.is-visible { opacity: 1; }
.cursor__ring.is-hidden { opacity: 0 !important; }
.cursor__ring.is-hover {
  transform: scale(2.1);
  background: rgb(255 132 0 / 0.14);
}

.cursor__label {
  position: absolute;
  top: 0;
  left: 0;
  width: 54px;
  height: 54px;
  margin: -27px 0 0 -27px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--orange);
  color: var(--white);
  opacity: 0;
  transform: scale(0.6);
  transition: opacity var(--dur-fast) ease, transform var(--dur) var(--ease-smooth);
}
.cursor__label svg {
  width: 22px;
  height: 22px;
}
.cursor__label.is-visible {
  opacity: 1;
  transform: scale(1);
}

/* --- Mobile menu ------------------------------------------- */

.nav-toggle {
  display: none;
  position: relative;
  width: 44px;
  height: 44px;
  flex: none;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--line);
  border-radius: 50%;
  background: var(--beige-400);
  color: var(--ink);
  transition:
    background-color var(--dur-fast) var(--ease-out),
    border-color var(--dur-fast) var(--ease-out),
    color var(--dur-fast) var(--ease-out);
}
.nav-toggle span {
  position: absolute;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform 0.3s var(--ease-smooth), opacity 0.2s ease;
}
.nav-toggle span:nth-child(1) { transform: translateY(-4px); }
.nav-toggle span:nth-child(2) { transform: translateY(4px); }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { transform: rotate(-45deg); }

.site-header.is-dark .nav-toggle {
  color: var(--white);
  border-color: rgb(225 245 255 / 0.35);
  background: rgb(5 46 135 / 0.35);
}
.site-header.is-menu-open .nav-toggle {
  color: var(--ink);
  border-color: var(--line);
  background: var(--beige-400);
}

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: calc(var(--z-header) - 1);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 32px;
  overflow-y: auto;
  padding: calc(var(--header-h) + 28px) var(--pad) 32px;
  background:
    radial-gradient(58% 48% at 82% 8%, rgb(255 132 0 / 0.14), transparent 70%),
    radial-gradient(52% 44% at 8% 92%, rgb(0 134 187 / 0.1), transparent 72%),
    var(--beige-400);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.35s var(--ease-smooth), visibility 0.35s;
}
.mobile-menu.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}
.site-header.is-menu-open::before { opacity: 0; }

.mobile-menu__nav { display: flex; flex-direction: column; }
.mobile-menu__nav a {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  font-size: clamp(34px, 9vw, 54px);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.02em;
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity 0.45s var(--ease-smooth),
    transform 0.45s var(--ease-smooth),
    color var(--dur-fast) var(--ease-out);
}
.mobile-menu__nav a:hover { color: var(--orange); }
.mobile-menu__nav a span {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--ink-2);
}
.mobile-menu.is-open .mobile-menu__nav a {
  opacity: 1;
  transform: none;
  transition-delay: calc(0.08s + var(--i, 0) * 0.06s);
}

.mobile-menu__foot { display: grid; gap: 18px; }
.mobile-menu__foot .btn { width: 100%; }
.mobile-menu .socials a {
  padding: 8px 0;
  border: 0;
  border-radius: 0;
  background: none;
  color: var(--ink-2);
}
.mobile-menu .socials a:hover {
  background: none;
  color: var(--orange);
}

body.menu-open { overflow: hidden; }

@media (max-width: 1023px) {
  .nav-toggle { display: inline-flex; }
}
@media (min-width: 1024px) {
  .mobile-menu { display: none !important; }
}