/* mirafold.com — dark-only, terminal identity (see CLAUDE.md).
   Tokens mirror the product's semantic palette. The design stays terminal-
   native and restrained; craft lives in scale, depth, rhythm, and motion. */

:root {
  --bg: #0a0d13;
  --bg-2: #0c1017;
  --surface: #111621;
  --surface-2: #161c28;
  --surface-3: #1b2230;
  --border: #212a3a;
  --border-soft: #1a2130;
  --fg: #dde3ee;
  --fg-soft: #aab4c6;
  --dim: #7b8698;
  --faint: #58627a;
  --accent: #40d17f;
  --accent-dim: #2f9d61;
  --accent-soft: rgba(64, 209, 127, 0.32);
  --accent-glow: rgba(64, 209, 127, 0.14);
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, "Cascadia Code",
    Consolas, "Liberation Mono", monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, sans-serif;
  /* shared card/panel surface gradient */
  --panel: linear-gradient(180deg, var(--surface), var(--bg-2));
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 30px 70px -20px rgba(0, 0, 0, 0.7);
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --wrap: 1080px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  /* faint vertical wash so the page has depth, not a flat slab */
  background-image:
    radial-gradient(1100px 620px at 50% -140px, var(--accent-glow), transparent 70%),
    linear-gradient(180deg, var(--bg-2), var(--bg) 640px);
  background-repeat: no-repeat;
}

::selection { background: var(--accent-soft); color: #fff; }

a { color: var(--fg-soft); text-decoration: none; transition: color 140ms var(--ease); }
a:hover { color: var(--accent); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 3px; }

code {
  font-family: var(--mono);
  font-size: 0.9em;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 0.08em 0.4em;
}

/* ---------- shared section shell ---------- */

main > section {
  max-width: var(--wrap);
  margin-left: auto;
  margin-right: auto;
  padding-left: 26px;
  padding-right: 26px;
}

h2 {
  font-family: var(--mono);
  font-weight: 600;
  font-size: 1.28rem;
  letter-spacing: 0.01em;
  margin: 0 0 2rem;
  color: var(--fg);
}
.hash { color: var(--accent); margin-right: 0.45em; }

/* ---------- terminal-window primitive (shared: install + demo) ---------- */

.terminal-window {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 11px;
  box-shadow: var(--shadow-md);
  overflow: hidden;
}
.tw-bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 11px 15px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
}
.dot { width: 11px; height: 11px; border-radius: 50%; background: #2b3446; }
.tw-title {
  font-family: var(--mono);
  font-size: 0.79rem;
  color: var(--dim);
  margin-left: 9px;
}
.tw-live {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--accent);
  letter-spacing: 0.02em;
}
.tw-body { padding: 18px 20px; }

/* ---------- nav ---------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.6rem 1.5rem;
  /* full-bleed bar; inner content aligns to the centered --wrap column */
  padding: 15px max(26px, calc((100% - var(--wrap)) / 2 + 26px));
  border-bottom: 1px solid transparent;
  transition: border-color 200ms var(--ease), background-color 200ms var(--ease);
}
.nav.scrolled {
  background: rgba(10, 13, 19, 0.72);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom-color: var(--border-soft);
}

.wordmark {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 1.06rem;
  color: var(--fg);
  letter-spacing: 0.01em;
}
.wordmark:hover { color: var(--fg); }
.glyph { color: var(--accent); margin-right: 0.4em; }

.nav nav, footer nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.4rem;
  font-family: var(--mono);
  font-size: 0.87rem;
}
.nav nav a, footer nav a { color: var(--dim); }
.nav nav a:hover, footer nav a:hover { color: var(--accent); }
.nav-sep { position: relative; }
.nav-sep::before {
  content: "";
  position: absolute;
  left: -0.75rem;
  top: 50%;
  transform: translateY(-50%);
  width: 1px; height: 14px;
  background: var(--border);
}

/* ---------- hero ---------- */

.hero {
  position: relative;
  padding-top: 88px;
  padding-bottom: 52px;
}
.hero-glow {
  position: absolute;
  top: -120px; left: 50%;
  transform: translateX(-50%);
  width: 900px; max-width: 120%;
  height: 460px;
  background: radial-gradient(closest-side, var(--accent-glow), transparent);
  filter: blur(20px);
  pointer-events: none;
  z-index: -1;
}

.eyebrow {
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: lowercase;
  color: var(--dim);
  margin: 0 0 1.3rem;
  display: inline-flex;
  align-items: center;
  padding: 6px 13px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
}

.hero h1 {
  font-family: var(--mono);
  font-weight: 600;
  font-size: clamp(1.85rem, 4.6vw, 3.15rem);
  line-height: 1.18;
  letter-spacing: -0.015em;
  margin: 0 0 1.5rem;
  max-width: 20em;
}
.hero h1 em { font-style: normal; color: var(--accent); }

.caret {
  display: inline-block;
  width: 0.62em; height: 1.02em;
  margin-left: 0.12em;
  vertical-align: -0.16em;
  background: var(--accent);
  border-radius: 1px;
  animation: blink 1.15s steps(1) infinite;
}
@keyframes blink { 0%, 50% { opacity: 1; } 50.01%, 100% { opacity: 0; } }

.lede {
  font-size: 1.14rem;
  color: var(--fg-soft);
  max-width: 60ch;
  margin: 0 0 1rem;
}
.lede strong { color: var(--fg); font-weight: 600; }

.lede-sub {
  font-size: 1.01rem;
  color: var(--dim);
  max-width: 60ch;
  margin: 0 0 2.4rem;
}

.hero-actions {
  display: flex;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 1.1rem 1.8rem;
}
.hero-actions .ghost-link { padding-bottom: 14px; }

/* install: a real little terminal window */
.install { position: relative; width: 100%; max-width: 34rem; }
.install .tw-body { padding: 16px 18px; }
.cmd {
  font-family: var(--mono);
  font-size: 0.98rem;
  line-height: 1.9;
  color: var(--fg);
  white-space: nowrap;
}
.cmd .prompt { color: var(--accent); margin-right: 0.7em; user-select: none; }
.copy {
  position: absolute;
  top: 10px; right: 10px;
  font-family: var(--mono);
  font-size: 0.76rem;
  color: var(--dim);
  background: var(--surface-3);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 11px;
  cursor: pointer;
  transition: color 140ms var(--ease), border-color 140ms var(--ease);
}
.copy:hover,
.copy.done { color: var(--accent); border-color: var(--accent-soft); }

.ghost-link {
  font-family: var(--mono);
  font-size: 0.9rem;
  color: var(--dim);
}
.ghost-link:hover { color: var(--accent); }
.ghost-link span { transition: transform 180ms var(--ease); display: inline-block; }
.ghost-link:hover span { transform: translateY(3px); }

/* ---------- demo ---------- */

.demo { padding-top: 34px; padding-bottom: 68px; }

.demo-frame {
  margin: 0 auto;
  max-width: 980px;
  box-shadow: var(--shadow-lg);
}
.demo-frame .tw-bar { padding: 12px 16px; }
.demo-frame img {
  display: block;
  width: 100%;
  height: auto;
  background: var(--bg-2);
}
.demo-caption {
  font-size: 0.93rem;
  color: var(--dim);
  max-width: 72ch;
  margin: 1.5rem auto 0;
  text-align: center;
}

/* ---------- features ---------- */

.features { padding-top: 20px; padding-bottom: 68px; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(288px, 1fr));
  gap: 16px;
}
.grid article {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px 24px 22px;
  transition: transform 220ms var(--ease), border-color 220ms var(--ease),
    box-shadow 220ms var(--ease);
}
.grid article::before {
  content: "";
  position: absolute;
  left: 0; top: 18px; bottom: 18px;
  width: 2px;
  background: var(--accent);
  border-radius: 2px;
  opacity: 0;
  transition: opacity 220ms var(--ease);
}
.grid article:hover {
  transform: translateY(-3px);
  border-color: var(--accent-soft);
  box-shadow: var(--shadow-md);
}
.grid article:hover::before { opacity: 1; }
.idx {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--faint);
  letter-spacing: 0.08em;
}
.grid h3 {
  font-family: var(--mono);
  font-weight: 600;
  font-size: 0.97rem;
  color: var(--accent);
  margin: 0.55rem 0 0.65rem;
}
.grid p { margin: 0; color: var(--fg-soft); font-size: 0.96rem; }
.grid em { color: var(--fg); font-style: italic; }

.also {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.4rem;
  margin: 1.8rem 0 0;
  padding: 0;
}
.also span {
  position: relative;
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--dim);
  padding-left: 1.1em;
}
.also span::before {
  content: "·";
  position: absolute;
  left: 0;
  color: var(--accent);
}
.also code { font-size: 0.85em; }

/* ---------- pricing ---------- */

.pricing { padding-top: 20px; padding-bottom: 68px; }

.tiers {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 18px;
  max-width: 900px;
}
.tier {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 28px 26px;
  display: flex;
  flex-direction: column;
}
.tier.pro {
  border-color: var(--accent-soft);
  box-shadow: 0 0 0 1px var(--accent-soft), 0 24px 60px -30px var(--accent-glow),
    var(--shadow-md);
}
.badge {
  position: absolute;
  top: -11px; right: 22px;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  color: var(--bg);
  background: var(--accent);
  padding: 3px 11px;
  border-radius: 999px;
  font-weight: 600;
}
.tier h3 {
  font-family: var(--mono);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--accent);
  margin: 0 0 0.5rem;
}
.price {
  font-family: var(--mono);
  font-size: 2rem;
  font-weight: 700;
  margin: 0 0 0.8rem;
  color: var(--fg);
}
.per { font-size: 0.84rem; font-weight: 400; color: var(--dim); margin-left: 0.35em; }
.tier-lede { margin: -0.4rem 0 0.9rem; color: var(--fg-soft); font-size: 0.97rem; }

.tier ul {
  list-style: none;
  margin: 0 0 1.7rem;
  padding: 0;
  color: var(--fg-soft);
  font-size: 0.95rem;
  flex-grow: 1;
}
.tier li { padding-left: 1.35em; position: relative; margin-bottom: 0.55rem; }
.tier li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--accent-dim);
}

.btn {
  display: inline-block;
  align-self: flex-start;
  font-family: var(--mono);
  font-size: 0.89rem;
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 11px 20px;
  background: var(--surface-2);
  transition: color 160ms var(--ease), border-color 160ms var(--ease),
    background-color 160ms var(--ease);
}
.btn:hover { color: var(--accent); border-color: var(--accent-soft); background: var(--surface-3); }
.btn-disabled {
  color: var(--dim);
  border-style: dashed;
  cursor: default;
  background: transparent;
}
.btn-disabled:hover { color: var(--dim); border-color: var(--border); background: transparent; }

/* ---------- faq ---------- */

.faq { padding-top: 20px; padding-bottom: 72px; }

.faq details {
  border-bottom: 1px solid var(--border-soft);
  max-width: 860px;
}
.faq details:first-of-type { border-top: 1px solid var(--border-soft); }
.faq summary {
  font-family: var(--mono);
  font-size: 0.95rem;
  padding: 16px 0;
  cursor: pointer;
  list-style: none;
  color: var(--fg);
  transition: color 140ms var(--ease);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before {
  content: "❯";
  color: var(--accent);
  display: inline-block;
  margin-right: 0.8em;
  transition: transform 160ms var(--ease);
}
.faq details[open] summary::before { transform: rotate(90deg); }
.faq summary:hover { color: var(--accent); }
.faq details p {
  margin: 0 0 1.25rem;
  padding-left: 1.7em;
  color: var(--fg-soft);
  font-size: 0.97rem;
  max-width: 72ch;
}
.faq details[open] p { animation: fade-in 260ms var(--ease); }

/* ---------- closing cta ---------- */

.cta { padding-top: 8px; padding-bottom: 84px; }
.cta-inner {
  border: 1px solid var(--border);
  border-radius: 14px;
  background:
    radial-gradient(600px 200px at 50% 0, var(--accent-glow), transparent 70%),
    var(--panel);
  padding: 48px 32px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.7rem;
}
.cta-line {
  font-family: var(--mono);
  font-size: clamp(1.15rem, 2.6vw, 1.55rem);
  font-weight: 600;
  color: var(--fg);
  margin: 0;
  letter-spacing: -0.01em;
}
.install-mini { max-width: 22rem; }
.install-mini .tw-body { padding: 14px 16px; }

/* ---------- footer ---------- */

footer {
  border-top: 1px solid var(--border-soft);
  background: var(--bg-2);
}
.footer-top {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 30px 26px 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
footer p {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 26px 40px;
  font-family: var(--mono);
  font-size: 0.81rem;
  color: var(--faint);
}

/* ---------- motion: entrance + scroll reveal ---------- */

@keyframes rise {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: none; }
}
@keyframes fade-in {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: none; }
}
.hero > *:not(.hero-glow) { animation: rise 520ms var(--ease) both; }
.hero .eyebrow { animation-delay: 40ms; }
.hero h1 { animation-delay: 90ms; }
.hero .lede { animation-delay: 150ms; }
.hero .lede-sub { animation-delay: 200ms; }
.hero .hero-actions { animation-delay: 250ms; }

/* scroll reveal only kicks in when JS can drive it; without scripting the
   media query never matches, so content is fully visible (no-JS safe). */
@media (scripting: enabled) {
  .reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 620ms var(--ease), transform 620ms var(--ease);
    will-change: opacity, transform;
  }
  .reveal.in { opacity: 1; transform: none; }
}

/* ---------- reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .caret { animation: none; }
  .hero > *, .faq details[open] p { animation: none !important; }
  .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
  .grid article:hover { transform: none; }
  .ghost-link:hover span { transform: none; }
}

/* ---------- small screens ---------- */

@media (max-width: 640px) {
  .hero { padding-top: 52px; }
  .nav nav, footer nav { gap: 1rem; }
  .nav-sep::before { display: none; }
  .cmd { font-size: 0.9rem; }
  .cta-inner { padding: 36px 22px; }
  .demo-caption { text-align: left; }
}