/* =========================================================
   init-S — Base styles
   ========================================================= */

*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: 1.55;
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;

  /* subtle dot grid background */
  background-image:
    radial-gradient(circle at 1px 1px, var(--grid-line) 1px, transparent 0);
  background-size: 24px 24px;
  background-attachment: fixed;
}

img, svg, video { display: block; max-width: 100%; }

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--t-fast) var(--ease);
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

h1, h2, h3, h4 {
  margin: 0;
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--fg);
  text-wrap: balance;
}

p { margin: 0; text-wrap: pretty; }

::selection { background: var(--accent); color: #07101e; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---------- Layout primitives ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding-inline: var(--sp-5);
}

.section {
  padding-block: var(--sp-9);
}

.section--tight { padding-block: var(--sp-7); }

@media (max-width: 720px) {
  .section { padding-block: var(--sp-7); }
  .container { padding-inline: var(--sp-4); }
}

/* ---------- Section header (consistent across pages) ---------- */
.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--accent);
  letter-spacing: 0.04em;
  text-transform: lowercase;
  margin-bottom: var(--sp-3);
}
.section-eyebrow::before {
  content: "▸";
  opacity: 0.7;
}

.section-title {
  font-size: clamp(1.75rem, 1.4rem + 1.6vw, var(--fs-2xl));
  font-weight: 600;
  margin-bottom: var(--sp-3);
}

.section-lede {
  color: var(--fg-mute);
  font-size: var(--fs-md);
  max-width: 60ch;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  padding: 0.75rem 1.25rem;
  border-radius: var(--r-md);
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  font-weight: 500;
  letter-spacing: 0.01em;
  border: 1px solid transparent;
  transition:
    transform var(--t-fast) var(--ease),
    background var(--t-fast) var(--ease),
    border-color var(--t-fast) var(--ease),
    color var(--t-fast) var(--ease),
    box-shadow var(--t-med) var(--ease);
  cursor: pointer;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  background: var(--accent);
  color: #06120c;
  border-color: var(--accent);
  box-shadow: 0 0 0 0 var(--accent-glow);
}
.btn--primary:hover {
  box-shadow: 0 0 0 6px var(--accent-glow);
}

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

.btn--block { width: 100%; justify-content: center; }

/* arrow micro */
.btn .arrow {
  transition: transform var(--t-med) var(--ease);
}
.btn:hover .arrow { transform: translateX(3px); }

/* ---------- Code chip / inline mono ---------- */
.code-chip {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--bg-elev-2);
  color: var(--accent);
  padding: 0.15em 0.5em;
  border-radius: var(--r-sm);
  border: 1px solid var(--line);
}

/* ---------- Card ---------- */
.card {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: var(--sp-5);
  transition:
    border-color var(--t-med) var(--ease),
    transform var(--t-med) var(--ease),
    box-shadow var(--t-med) var(--ease);
}
.card:hover {
  border-color: var(--line-strong);
  box-shadow: var(--shadow-md);
}

/* ---------- Terminal answer box (GEO) ----------
   Used to wrap "answer box" intros and Q&A — looks like
   a real terminal, signals to AI crawlers that this is
   structured information without breaking the page rhythm.
*/
.term {
  background: var(--surface-code);
  border: 1px solid var(--line-strong);
  border-radius: var(--r-md);
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  line-height: 1.65;
  color: #d6e4f5;
  overflow: hidden;
}
.term__bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 0.85rem;
  background: rgba(255,255,255,0.03);
  border-bottom: 1px solid var(--line-strong);
  font-size: var(--fs-xs);
  color: #94a3b8;
}
.term__dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: #2a3a5a;
}
.term__dot--r { background: #ff5f57; }
.term__dot--y { background: #febc2e; }
.term__dot--g { background: #28c840; }
.term__title {
  margin-left: auto;
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}
.term__body {
  padding: var(--sp-4) var(--sp-5);
}

.term__line { display: block; }
.term__line + .term__line { margin-top: 0.35em; }

.term__prompt {
  color: var(--accent);
  user-select: none;
}
.term__prompt::after {
  content: " ";
}
.term__cmd { color: #e6edf7; }
.term__out { color: #cbd5e1; }
.term__comment { color: #6c7e9e; }

.term__caret {
  display: inline-block;
  width: 0.55em; height: 1.1em;
  vertical-align: -0.18em;
  background: var(--accent);
  margin-left: 0.15em;
  animation: caret 1.05s steps(1) infinite;
}
@keyframes caret { 50% { opacity: 0; } }

/* Inline ribbon "answer box" alternative — terminal output style block */
.answer-box {
  position: relative;
  padding: var(--sp-4) var(--sp-5);
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--r-md) var(--r-md) 0;
}
.answer-box__label {
  display: inline-flex;
  align-items: center;
  gap: 0.45em;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--accent);
  text-transform: lowercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--sp-2);
}
.answer-box__label::before { content: "$"; opacity: 0.7; }
.answer-box p {
  color: var(--fg);
  font-size: var(--fs-md);
}

/* ---------- FAQ as prompt/response ---------- */
.faq {
  display: grid;
  gap: var(--sp-3);
}
.faq__item {
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--bg-elev);
  overflow: hidden;
}
.faq__q {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  width: 100%;
  text-align: left;
  padding: var(--sp-4);
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  color: var(--fg);
  transition: background var(--t-fast) var(--ease);
}
.faq__q:hover { background: var(--bg-elev-2); }
.faq__q::before {
  content: "?";
  flex: 0 0 auto;
  display: inline-grid;
  place-items: center;
  width: 22px; height: 22px;
  border-radius: 4px;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 700;
  font-size: 0.85em;
  margin-top: 1px;
}
.faq__chev {
  margin-left: auto;
  color: var(--fg-dim);
  transition: transform var(--t-med) var(--ease);
  flex: 0 0 auto;
}
.faq__item[open] .faq__chev { transform: rotate(180deg); }
.faq__a {
  padding: 0 var(--sp-4) var(--sp-4) calc(var(--sp-4) + 22px + 0.75rem);
  color: var(--fg-mute);
  font-size: var(--fs-sm);
  line-height: 1.65;
}
.faq__a::before {
  content: "↳ ";
  font-family: var(--font-mono);
  color: var(--accent);
  margin-right: 0.3em;
}

/* native details summary reset */
details > summary { list-style: none; cursor: pointer; }
details > summary::-webkit-details-marker { display: none; }

/* ---------- Skip link ---------- */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: #06120c;
  padding: 0.5rem 1rem;
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  z-index: 200;
}
.skip-link:focus { left: var(--sp-4); top: var(--sp-4); }