/* ============================================================
   aish marketing site — styles
   Dark mode, violet accent. See DESIGN_REF.md for the system.
   ============================================================ */

:root {
  /* color */
  --bg: #0E0B16;
  --surface: #171327;
  --surface-2: #201A33;
  --border: #2C2545;
  --border-hi: #3A2F5C;
  --accent: #8B5CF6;
  --accent-hi: #A78BFA;
  --accent-press: #7C3AED;
  --text: #EDE9F5;
  --text-strong: #FFFFFF;
  --text-muted: #9A93B0;
  --ok: #34D399;
  --no: #F0606B;

  /* type */
  --font-sans: "Plus Jakarta Sans", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --fs-hero: clamp(40px, 7vw, 76px);
  --fs-h2: clamp(30px, 4.4vw, 48px);
  --fs-h3: 24px;
  --fs-lead: clamp(18px, 2.2vw, 22px);
  --fs-body: 16px;
  --fs-small: 14px;

  /* layout */
  --maxw: 1120px;
  --gutter: 24px;
  --nav-h: 68px;
  --radius: 18px;
  --radius-sm: 12px;
  --ease: cubic-bezier(.22,.61,.36,1);
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { overflow-x: hidden; }
html { scroll-behavior: smooth; scroll-padding-top: var(--nav-h); }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
h1, h2, h3 { margin: 0; color: var(--text-strong); font-weight: 700; }
p { margin: 0; }
a { color: inherit; text-decoration: none; }
em { font-style: normal; color: var(--accent-hi); }
ul, ol { margin: 0; padding: 0; list-style: none; }
:focus-visible { outline: 2px solid var(--accent-hi); outline-offset: 3px; border-radius: 6px; }

/* min-width:0 guard for flex/grid children (overflow protection) */
.grid > *, .hero__inner > *, .footer__cols > *, .nav__inner > * { min-width: 0; }

/* ---------- shared section scaffolding ---------- */
.section__content {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.section {
  display: flex;
  align-items: center;
  min-height: 100vh;
  min-height: 100dvh;
  padding-block: 96px;
}
.section__head { max-width: 720px; margin-bottom: 56px; }
.eyebrow {
  font-size: var(--fs-small);
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent-hi);
  margin-bottom: 16px;
}
.section__title { font-size: var(--fs-h2); line-height: 1.1; letter-spacing: -0.025em; }
.section__lead { margin-top: 20px; font-size: var(--fs-lead); color: var(--text-muted); line-height: 1.55; }

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  border-bottom: 1px solid transparent;
  transition: background .3s var(--ease), border-color .3s var(--ease);
}
.nav.is-scrolled {
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  border-bottom-color: var(--border);
  backdrop-filter: blur(12px);
}
.nav__inner {
  height: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
  display: flex;
  align-items: center;
  gap: 24px;
}
.brand { display: inline-flex; align-items: center; gap: 9px; color: var(--text-strong); }
.brand__mark { color: var(--accent); flex: none; }
.brand__name { font-weight: 700; font-size: 20px; letter-spacing: -0.01em; }
.nav__links {
  display: flex;
  gap: 28px;
  margin-left: 18px;
  margin-right: auto;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-muted);
}
.nav__links a { position: relative; padding: 6px 0; transition: color .2s var(--ease); }
.nav__links a::after {
  content: "";
  position: absolute; left: 0; bottom: 0;
  width: 100%; height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .25s var(--ease);
}
.nav__links a:hover { color: var(--text); }
.nav__links a:hover::after { transform: scaleX(1); }
.nav__cta { display: flex; align-items: center; gap: 12px; }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  --pv: 11px; --ph: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: var(--pv) var(--ph);
  border-radius: 999px;
  font-family: inherit;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  cursor: pointer;
  border: 1px solid transparent;
  white-space: nowrap;
  transition: transform .14s var(--ease), background .2s var(--ease),
              border-color .2s var(--ease), color .2s var(--ease), box-shadow .2s var(--ease);
}
.btn--lg { --pv: 15px; --ph: 30px; font-size: 16px; }
.btn--primary {
  background: var(--accent);
  color: var(--text-strong);
  box-shadow: 0 8px 26px -10px color-mix(in srgb, var(--accent) 75%, transparent);
}
.btn--primary:hover { background: var(--accent-hi); }
.btn--primary:active { background: var(--accent-press); transform: scale(.97); }
.btn--ghost {
  background: color-mix(in srgb, var(--surface) 70%, transparent);
  color: var(--text);
  border-color: var(--border-hi);
}
.btn--ghost:hover { background: var(--surface-2); border-color: var(--accent); color: var(--text-strong); }
.btn--ghost:active { transform: scale(.97); }
.btn__arrow { transition: transform .22s var(--ease); }
.btn:hover .btn__arrow { transform: translateX(4px); }
.nav__cta .btn--ghost svg { color: var(--text-muted); transition: color .2s var(--ease); }
.nav__cta .btn--ghost:hover svg { color: var(--text); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 100vh;
  min-height: 100dvh;
  padding-top: calc(var(--nav-h) + 40px);
  padding-bottom: 64px;
  overflow: hidden;
}
.hero__glow {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(540px 420px at 78% 24%, color-mix(in srgb, var(--accent) 34%, transparent), transparent 70%),
    radial-gradient(460px 380px at 12% 86%, color-mix(in srgb, #5B8DEF 22%, transparent), transparent 72%);
  filter: blur(8px);
  opacity: .85;
  animation: glowPulse 9s ease-in-out infinite;
}
@keyframes glowPulse { 0%,100% { opacity: .7; } 50% { opacity: .95; } }
.hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 56px;
  align-items: center;
}
.hero__title { font-size: var(--fs-hero); line-height: 1.02; letter-spacing: -0.035em; }
.hero__title .accent { color: var(--accent-hi); position: relative; white-space: nowrap; }
.strike { position: relative; color: var(--text-muted); }
.strike::after {
  content: "";
  position: absolute; left: -2%; right: -2%; top: 52%;
  height: 4px; border-radius: 4px;
  background: var(--no);
  transform: scaleX(0); transform-origin: left;
  animation: strike .6s var(--ease) .5s forwards;
}
@keyframes strike { to { transform: scaleX(1); } }
.caret {
  display: inline-block;
  width: 3px; height: .92em;
  margin-left: 4px; margin-right: -7px;
  vertical-align: -0.08em;
  background: var(--accent-hi);
  animation: blink 1.05s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }
.hero__lead {
  margin-top: 26px;
  max-width: 540px;
  font-size: var(--fs-lead);
  color: var(--text-muted);
  line-height: 1.55;
}
.hero__actions { margin-top: 36px; display: flex; flex-wrap: wrap; gap: 14px; }
.hero__meta {
  margin-top: 32px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  font-size: var(--fs-small);
  color: var(--text-muted);
}
.hero__meta li { display: inline-flex; align-items: center; gap: 8px; }
.hero__meta svg { color: var(--ok); flex: none; }

/* terminal */
.terminal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 30px 80px -40px rgba(0,0,0,.8);
}
.terminal__bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 13px 16px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
}
.terminal__dot { width: 11px; height: 11px; border-radius: 50%; background: var(--border-hi); }
.terminal__dot:nth-child(1) { background: #E06C75; }
.terminal__dot:nth-child(2) { background: #E5C07B; }
.terminal__dot:nth-child(3) { background: #98C379; }
.terminal__title {
  margin-left: 8px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--text-muted);
}
.terminal__body {
  margin: 0;
  padding: 22px 20px;
  min-height: 340px;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.75;
  white-space: pre-wrap;
  word-break: break-word;
  font-variant-numeric: tabular-nums;
}
.t-prompt { color: var(--accent-hi); }
.t-user { color: var(--text); }
.t-sys { color: var(--text-muted); }
.t-ok { color: var(--ok); }
.t-dim { color: #6F6890; }
.t-cursor {
  display: inline-block; width: 8px; height: 1em;
  background: var(--accent-hi); vertical-align: -0.12em;
  animation: blink 1.05s steps(1) infinite;
}

/* ============================================================
   CARDS / GRIDS
   ============================================================ */
.grid { display: grid; gap: 22px; }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform .25s var(--ease), border-color .25s var(--ease), background .25s var(--ease);
}
.card:hover { transform: translateY(-4px); border-color: var(--border-hi); }
.card--feature:hover { border-color: var(--accent); }
.card__title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: var(--fs-h3);
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}
.card__icon { color: var(--accent-hi); flex: none; }
.card p { color: var(--text-muted); line-height: 1.6; }
.card p code, .timeline__desc code, .compare__note code {
  font-family: var(--font-mono);
  font-size: .88em;
  padding: 1px 6px;
  border-radius: 6px;
  color: var(--accent-hi);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 22%, transparent);
  white-space: nowrap;
}

/* ============================================================
   COMPARE TABLE
   ============================================================ */
.table-wrap {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
}
.ctable { width: 100%; border-collapse: collapse; }
.ctable th, .ctable td { padding: 18px 20px; text-align: center; font-size: 15px; }
.ctable thead th { font-weight: 600; color: var(--text-muted); border-bottom: 1px solid var(--border); }
.ctable thead .ctable__aish { color: var(--accent-hi); }
.ctable tbody th[scope="row"] {
  text-align: left;
  font-weight: 500;
  color: var(--text);
}
.ctable tbody tr:nth-child(even) { background: color-mix(in srgb, var(--surface-2) 55%, transparent); }
.ctable tbody tr:not(:last-child) th, .ctable tbody tr:not(:last-child) td { border-bottom: 1px solid var(--border); }
.ctable__aish { background: color-mix(in srgb, var(--accent) 9%, transparent); }
.ctable thead th.ctable__aish { background: color-mix(in srgb, var(--accent) 14%, transparent); }
.mark { display: inline-flex; align-items: center; justify-content: center; }
.mark::before {
  width: 22px; height: 22px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 13px; font-weight: 600;
}
.mark--ok::before { content: "✓"; color: var(--ok); background: color-mix(in srgb, var(--ok) 16%, transparent); }
.mark--no[data-l="no"]::before { content: "✕"; color: var(--no); background: color-mix(in srgb, var(--no) 14%, transparent); }
.mark--no[data-l="soon"]::before { content: "◷"; color: var(--accent-hi); background: color-mix(in srgb, var(--accent) 16%, transparent); }
.compare__note { margin-top: 18px; font-size: var(--fs-small); color: var(--text-muted); }

/* ============================================================
   ROADMAP TIMELINE
   ============================================================ */
.timeline { position: relative; max-width: 760px; }
.timeline__item { display: grid; grid-template-columns: 28px 1fr; gap: 20px; }
.timeline__rail { position: relative; display: flex; justify-content: center; }
.timeline__rail::before {
  content: ""; position: absolute; top: 0; bottom: -8px;
  width: 2px; background: var(--border);
}
.timeline__item:last-child .timeline__rail::before { bottom: auto; height: 14px; }
.timeline__node {
  position: relative; z-index: 1;
  width: 14px; height: 14px; margin-top: 5px;
  border-radius: 50%;
  background: var(--surface);
  border: 2px solid var(--border-hi);
}
.timeline__item--now .timeline__node {
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 60%, transparent);
  animation: nodePulse 2.4s var(--ease) infinite;
}
@keyframes nodePulse {
  0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 55%, transparent); }
  70% { box-shadow: 0 0 0 12px color-mix(in srgb, var(--accent) 0%, transparent); }
  100% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 0%, transparent); }
}
.timeline__body { padding-bottom: 34px; }
.timeline__ver {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 17px; font-weight: 600;
  color: var(--text-strong);
  margin-bottom: 8px;
}
.timeline__desc { color: var(--text-muted); line-height: 1.6; }
.chip {
  font-family: var(--font-sans);
  font-size: 12px; font-weight: 600; letter-spacing: .02em;
  padding: 3px 11px; border-radius: 999px;
  color: var(--text-muted);
  background: var(--surface-2);
  border: 1px solid var(--border);
}
.chip--live {
  color: var(--ok);
  background: color-mix(in srgb, var(--ok) 12%, transparent);
  border-color: color-mix(in srgb, var(--ok) 30%, transparent);
}

/* ============================================================
   CTA / INSTALL
   ============================================================ */
.cta { position: relative; overflow: hidden; text-align: center; }
.cta__glow {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background: radial-gradient(560px 360px at 50% 30%, color-mix(in srgb, var(--accent) 26%, transparent), transparent 70%);
  filter: blur(6px);
}
.cta__content { position: relative; z-index: 1; max-width: 760px; }
.cta__title { font-size: var(--fs-h2); letter-spacing: -0.025em; }
.cta__lead { margin-top: 18px; font-size: var(--fs-lead); color: var(--text-muted); }
.codeblock {
  position: relative;
  margin: 40px auto 0;
  max-width: 640px;
  text-align: left;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 22px 56px 22px 22px;
}
.codeblock__code {
  display: block;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--text);
  white-space: pre-wrap;
  word-break: break-word;
}
.codeblock__copy {
  position: absolute; top: 14px; right: 14px;
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 11px;
  font-family: var(--font-sans); font-size: 13px; font-weight: 500;
  color: var(--text-muted);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 9px;
  cursor: pointer;
  transition: transform .14s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}
.codeblock__copy:hover { color: var(--text); border-color: var(--accent); }
.codeblock__copy:active { transform: scale(.95); }
.codeblock__copy.is-copied { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 40%, transparent); }
.copy-label { line-height: 1; }
.cta__actions { margin-top: 32px; display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }

/* ============================================================
   FOOTER
   ============================================================ */
.footer { border-top: 1px solid var(--border); padding-block: 56px 28px; }
.footer__inner { display: grid; grid-template-columns: 1.4fr 2fr; gap: 40px; }
.footer__tag { margin-top: 14px; color: var(--text-muted); font-size: var(--fs-small); max-width: 280px; }
.footer__cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.footer__h { font-size: 13px; font-weight: 600; color: var(--text); margin-bottom: 14px; }
.footer__col a {
  display: block;
  color: var(--text-muted);
  font-size: var(--fs-small);
  padding: 5px 0;
  transition: color .2s var(--ease);
}
.footer__col a:hover { color: var(--accent-hi); }
.footer__bar {
  margin-top: 40px;
  padding-top: 22px;
  border-top: 1px solid var(--border);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px;
  font-size: var(--fs-small);
  color: var(--text-muted);
}

/* ============================================================
   TOAST
   ============================================================ */
.toast {
  position: fixed;
  left: 50%; bottom: 28px;
  transform: translate(-50%, 140%);
  z-index: 200;
  display: inline-flex; align-items: center; gap: 9px;
  padding: 12px 18px;
  background: var(--surface-2);
  border: 1px solid color-mix(in srgb, var(--ok) 34%, var(--border));
  border-radius: 999px;
  color: var(--text);
  font-size: var(--fs-small); font-weight: 500;
  box-shadow: 0 20px 50px -22px rgba(0,0,0,.85);
  transition: transform .35s var(--ease);
}
.toast svg { color: var(--ok); }
.toast.is-show { transform: translate(-50%, 0); }

/* ============================================================
   SCROLL REVEAL
   ============================================================ */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 940px) {
  .hero__inner { grid-template-columns: 1fr; gap: 44px; }
  .terminal { order: 2; }
  .grid--3 { grid-template-columns: 1fr 1fr; }
  .footer__inner { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 720px) {
  :root { --nav-h: 60px; }
  .nav__links { display: none; }
  /* Hero: drop 100vh centering on mobile (DESIGN_REF / spacing rule) */
  .hero {
    min-height: auto;
    align-items: flex-start;
    padding-top: calc(var(--nav-h) + 24px);
    padding-bottom: 48px;
  }
  /* nav: sticky on mobile, solid bg (no backdrop-filter) */
  .nav { position: sticky; background: var(--bg); }
  .nav.is-scrolled { backdrop-filter: none; background: var(--bg); }
  .section { min-height: auto; padding-block: 72px; }
  .section__head { margin-bottom: 40px; }
  .grid--3, .grid--2 { grid-template-columns: 1fr; }
  .hero__actions .btn, .cta__actions .btn { flex: 1 1 auto; }
  .terminal__body { min-height: 280px; font-size: 12.5px; }
  /* compare table scrolls horizontally with an edge-fade affordance */
  .table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch;
    -webkit-mask-image: linear-gradient(to right, #000 0, #000 calc(100% - 32px), transparent 100%);
            mask-image: linear-gradient(to right, #000 0, #000 calc(100% - 32px), transparent 100%); }
  .ctable { min-width: 540px; }
  .footer__bar { justify-content: flex-start; }
}

/* ============================================================
   REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  .caret, .t-cursor, .hero__glow, .timeline__item--now .timeline__node { animation: none !important; }
  .strike::after { transform: scaleX(1); }
}