/* Reusable building blocks: buttons, pills, tags, cards, section headings */

/* ---------- Buttons ---------- */
.btn {
  --h: 48px;
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: var(--h);
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: -0.01em;
  white-space: nowrap;
  isolation: isolate;
  overflow: hidden;
  transition: transform 0.45s var(--ease), background 0.3s, color 0.3s, border-color 0.3s, box-shadow 0.4s;
  will-change: transform;
}
.btn svg { width: 18px; height: 18px; transition: transform 0.45s var(--ease); }
.btn:hover svg { transform: translateX(3px); }
.btn--sm { --h: 40px; padding: 0 16px; font-size: 0.88rem; }
.btn--sm svg { width: 16px; height: 16px; }
.btn--lg { --h: 58px; padding: 0 30px; font-size: 1rem; }
.btn--block { width: 100%; }

.btn--primary {
  background: var(--accent);
  color: var(--accent-ink);
  box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 50%, transparent), 0 10px 40px -10px color-mix(in srgb, var(--accent) 60%, transparent);
}
.btn--primary::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(110deg, transparent 30%, rgba(255, 255, 255, 0.65) 50%, transparent 70%);
  transform: translateX(-120%);
  transition: transform 0.9s var(--ease);
}
.btn--primary:hover::before { transform: translateX(120%); }
.btn--primary:hover { box-shadow: 0 0 0 6px color-mix(in srgb, var(--accent) 18%, transparent), 0 16px 50px -10px color-mix(in srgb, var(--accent) 70%, transparent); }

.btn--ghost {
  background: var(--surface);
  border: 1px solid var(--line-2);
  color: var(--text);
  backdrop-filter: blur(10px);
}
.btn--ghost:hover { background: var(--surface-2); border-color: rgba(255, 255, 255, 0.3); }
.btn:disabled { opacity: 0.6; pointer-events: none; }

/* ---------- Pills ---------- */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 8px 7px 14px;
  border-radius: 999px;
  border: 1px solid var(--line-2);
  background: rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(12px);
  font-size: 0.86rem;
  color: var(--text);
  transition: border-color 0.3s, background 0.3s;
}
.pill:hover { border-color: color-mix(in srgb, var(--accent) 60%, transparent); }
.pill__arrow {
  display: grid; place-items: center;
  width: 24px; height: 24px; border-radius: 50%;
  background: var(--accent); color: var(--accent-ink);
}
.pill__arrow svg { width: 13px; height: 13px; }
.pill--sm { padding: 5px 12px; font-size: 0.78rem; gap: 8px; }

.live-dot {
  position: relative;
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
  flex: none;
}
.live-dot::after {
  content: ""; position: absolute; inset: -4px; border-radius: 50%;
  border: 1.5px solid var(--accent);
  animation: ping 2s var(--ease) infinite;
}

/* ---------- Tags ---------- */
.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  padding: 5px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.025);
  font-size: 0.78rem;
  font-family: var(--font-mono);
  color: var(--muted);
  letter-spacing: -0.01em;
}

/* ---------- Cards ---------- */
.card {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.012));
  overflow: hidden;
  isolation: isolate;
}

/* Cursor-following spotlight for any .spot element */
.spot::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: 0;
  transition: opacity 0.5s;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 50%), color-mix(in srgb, var(--accent) 13%, transparent), transparent 60%);
}
.spot::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: radial-gradient(300px circle at var(--mx, 50%) var(--my, 50%), color-mix(in srgb, var(--accent) 70%, transparent), transparent 60%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.5s;
  pointer-events: none;
}
.spot:hover::before, .spot:hover::after { opacity: 1; }

/* ---------- Section headings ---------- */
.sec-head { max-width: 820px; margin-bottom: clamp(44px, 6vw, 80px); }
.sec-head--center { margin-inline: auto; text-align: center; }
.sec-head--center .kicker { justify-content: center; }

.kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--muted);
}
.kicker__dot { width: 6px; height: 6px; border-radius: 2px; background: var(--accent); transform: rotate(45deg); }

.sec-title {
  font-size: var(--fs-h2);
  line-height: 1.02;
  letter-spacing: -0.045em;
  font-weight: 600;
  text-wrap: balance;
}
.sec-intro {
  margin-top: 22px;
  max-width: 580px;
  font-size: var(--fs-lead);
  color: var(--muted);
  text-wrap: pretty;
}
.sec-head--center .sec-intro { margin-inline: auto; }

.section { position: relative; padding-block: var(--section-y); }