/* Quickstart page — reuses the site's tokens and terminal component.
   Scoped additions only; no changes to the shared stylesheet. */

.quickstart-section {
  width: var(--content);
  margin: 0 auto;
  padding: clamp(4.5rem, 9vw, 7.5rem) 0;
}

.qs-step {
  margin-top: clamp(2.8rem, 6vw, 4.2rem);
  max-width: 52rem;
}

.qs-step h3 {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0 0 0.4rem;
  font-size: clamp(1.15rem, 2vw, 1.4rem);
  color: var(--ink);
}

.qs-num {
  display: grid;
  place-items: center;
  width: 1.9rem;
  height: 1.9rem;
  flex: none;
  border-radius: 50%;
  background: var(--accent-wash);
  color: var(--accent);
  font: 700 0.95rem/1 var(--sans);
}

.qs-step > p {
  margin: 0 0 1.1rem;
  color: var(--ink-soft);
  max-width: 56ch;
}

/* ── language tabs: pure-CSS radio pattern (CSP-safe, no JS) ── */

.lang-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.lang-labels {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.lang-label {
  cursor: pointer;
  padding: 0.5rem 1.05rem;
  font: 600 0.88rem/1 var(--sans);
  color: var(--muted);
  background: var(--paper-muted);
  border: 1px solid var(--line);
  border-bottom: none;
  border-radius: 9px 9px 0 0;
  user-select: none;
  transition: color 0.15s, background 0.15s;
}

.lang-label:hover {
  color: var(--ink);
}

#lang-go:checked ~ .lang-labels label[for="lang-go"],
#lang-rust:checked ~ .lang-labels label[for="lang-rust"],
#lang-node:checked ~ .lang-labels label[for="lang-node"],
#lang-python:checked ~ .lang-labels label[for="lang-python"] {
  color: var(--terminal-text);
  background: var(--terminal);
  border-color: var(--terminal);
}

#lang-go:focus-visible ~ .lang-labels label[for="lang-go"],
#lang-rust:focus-visible ~ .lang-labels label[for="lang-rust"],
#lang-node:focus-visible ~ .lang-labels label[for="lang-node"],
#lang-python:focus-visible ~ .lang-labels label[for="lang-python"] {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.lang-panel {
  display: none;
  margin: 0;
  padding: clamp(1.1rem, 3vw, 1.7rem);
  background: var(--terminal);
  color: var(--terminal-text);
  border-radius: 0 12px 12px 12px;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: clamp(0.74rem, 1.6vw, 0.84rem);
  line-height: 1.75;
  box-shadow: 8px 8px 0 var(--accent);
}

#lang-go:checked ~ .lang-panel-go,
#lang-rust:checked ~ .lang-panel-rust,
#lang-node:checked ~ .lang-panel-node,
#lang-python:checked ~ .lang-panel-python {
  display: block;
}

/* ── terminals on this page: short lines, so no forced wide canvas ── */

.qs-terminal code {
  min-width: 0;
}

.qs-footnote {
  margin-top: clamp(2.5rem, 6vw, 4rem);
  font-size: 0.88rem;
  color: var(--muted);
  max-width: 60ch;
}

/* ── mobile ── */

@media (max-width: 640px) {
  .lang-labels {
    gap: 0.25rem;
  }

  .lang-label {
    padding: 0.5rem 0.8rem;
    font-size: 0.82rem;
  }

  .lang-panel {
    box-shadow: 5px 5px 0 var(--accent);
  }
}