/* =================================================================
   QRM Workspaces — shared site stylesheet
   Used by: landing, features, pricing, signup, login, trust, changelog
   Editorial-industrial direction. Navy + mint + ivory.
   ================================================================= */

@import url("https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&family=Geist:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap");

:root[data-theme="dark"] {
  --bg-deep:        #0a0f1e;
  --bg-soft:        #0e1525;
  --surface:        #131c30;
  --surface-2:      #182238;
  --hairline:       rgba(233, 238, 249, 0.08);
  --hairline-bold:  rgba(233, 238, 249, 0.16);
  --ink:            #ecf0fa;
  --ink-soft:       #a3b0c8;
  --ink-faint:      #5f6c89;
  --ink-display:    #f6f4ee;
  --accent-mint: #5ec9ea;
  --accent-mint-2: #2d95d4;
  --accent-blue:    #6e8bff;
  --accent-amber:   #f6c177;
  --accent-rose:    #f0a0b8;
  --signal: #5e9dea;
  --signal-on:      #052e25;
  --shadow-lift:    0 30px 80px -30px rgba(0,0,0,0.65), 0 12px 30px -18px rgba(94,234,212,0.12);
  --grain-opacity:  0.018;
}
:root[data-theme="light"] {
  --bg-deep:        #f3efe6;
  --bg-soft:        #ebe5d6;
  --surface:        #ffffff;
  --surface-2:      #faf7ef;
  --hairline:       rgba(10, 15, 30, 0.10);
  --hairline-bold:  rgba(10, 15, 30, 0.22);
  --ink:            #0a0f1e;
  --ink-soft:       #4b5568;
  --ink-faint:      #8a8170;
  --ink-display:    #0a0f1e;

  --accent-mint:    #0f8f78;
  --accent-mint-2:  #0d7e69;
  --accent-blue:    #2f4cd0;
  --accent-amber:   #b87b16;
  --accent-rose:    #b54a6c;

  --signal:         #0f8f78;
  --signal-on:      #ecfbf6;

  --shadow-lift:    0 20px 50px -28px rgba(10,15,30,0.18), 0 8px 22px -16px rgba(10,15,30,0.10);
  --grain-opacity:  0.04;
}
:root[data-accent="blue"]   { --signal: var(--accent-blue);  --signal-on: #061233; }
:root[data-accent="amber"]  { --signal: var(--accent-amber); --signal-on: #2a1d05; }
:root[data-accent="rose"]   { --signal: var(--accent-rose);  --signal-on: #2b0b16; }
:root[data-theme="light"][data-accent="blue"]  { --signal-on: #eaf0ff; }
:root[data-theme="light"][data-accent="amber"] { --signal-on: #fff5e3; }
:root[data-theme="light"][data-accent="rose"]  { --signal-on: #ffe9ef; }

:root[data-density="compact"]     { --rhythm: 0.85; }
:root[data-density="comfortable"] { --rhythm: 1; }
:root[data-density="spacious"]    { --rhythm: 1.18; }

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Geist', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  color: var(--ink);
  background: var(--bg-deep);
  min-height: 100vh;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  font-feature-settings: 'ss01' 1, 'ss02' 1, 'cv11' 1;
}
body::before {
  content: ""; position: fixed; inset: 0; pointer-events: none; z-index: 0;
}
:root[data-theme="dark"] body::before {
  background:
    radial-gradient(1100px 800px at 88% -12%, color-mix(in oklab, var(--signal) 18%, transparent), transparent 60%),
    radial-gradient(900px 700px at -8% 5%, rgba(110,139,255,0.10), transparent 65%),
    radial-gradient(900px 700px at 40% 110%, color-mix(in oklab, var(--signal) 8%, transparent), transparent 60%);
}
:root[data-theme="light"] body::before {
  background:
    radial-gradient(1100px 800px at 92% -20%, color-mix(in oklab, var(--signal) 14%, transparent), transparent 60%),
    radial-gradient(900px 700px at -5% 110%, rgba(47,76,208,0.06), transparent 65%);
}
body::after {
  content: ""; position: fixed; inset: 0; pointer-events: none; z-index: 1;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='1.6' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0  0 0 0 0 0  0 0 0 0 0  0 0 0 0.9 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  background-size: 160px 160px;
  opacity: var(--grain-opacity);
  mix-blend-mode: overlay;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
::selection { background: var(--signal); color: var(--signal-on); }

/* =================================================================
   LAYOUT
   ================================================================= */
.wrap {
  max-width: 1680px;
  margin: 0 auto;
  padding: 0 32px;
  position: relative; z-index: 2;
}
@media (max-width: 720px) { .wrap { padding: 0 20px; } }

/* =================================================================
   TYPE
   ================================================================= */
.eyebrow {
  font-family: 'JetBrains Mono', ui-monospace, Menlo, Consolas, monospace;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-faint);
  display: inline-flex; align-items: baseline; gap: 10px;
}
.eyebrow::before {
  content: ""; width: 24px; height: 1px; background: currentColor;
  display: inline-block; transform: translateY(-4px);
}

.display {
  font-family: 'Instrument Serif', 'Cormorant Garamond', Georgia, serif;
  font-weight: 400;
  letter-spacing: -0.015em;
  line-height: 1.04;
  color: var(--ink-display);
  margin: 0;
  font-feature-settings: 'liga' 1, 'dlig' 1;
  padding-bottom: 0.04em;
}
.display em { font-style: italic; color: var(--signal); font-weight: 400; }

.mono { font-family: 'JetBrains Mono', ui-monospace, monospace; }

/* =================================================================
   NAV
   ================================================================= */
.top {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  background: color-mix(in oklab, var(--bg-deep) 78%, transparent);
  border-bottom: 1px solid var(--hairline);
}
.top-inner {
  max-width: 1680px; margin: 0 auto;
  padding: 14px 32px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 32px;
}
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: 'Instrument Serif', serif;
  font-size: 22px;
  color: var(--ink-display);
  line-height: 1;
}
.brand-mark {
  width: 28px; height: 28px;
  border-radius: 8px;
  background: var(--surface);
  border: 1px solid var(--hairline-bold);
  display: grid; place-items: center;
  overflow: hidden;
}
.brand-mark img { width: 22px; height: 22px; }
.brand-name { letter-spacing: -0.01em; }
.brand-name .amp { color: var(--ink-faint); font-style: italic; padding: 0 4px; }

.nav-links {
  display: flex; align-items: center; gap: 28px;
  justify-content: center;
  font-size: 14px;
  color: var(--ink-soft);
}
.nav-links a { transition: color 160ms ease; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--ink); }
.nav-links a[aria-current="page"] {
  position: relative;
}
.nav-links a[aria-current="page"]::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -18px;
  height: 1px; background: var(--signal);
}

.nav-cta { display: flex; align-items: center; gap: 10px; }

@media (max-width: 880px) {
  .nav-links { display: none; }
  .top-inner { grid-template-columns: auto 1fr; }
}

/* =================================================================
   BUTTONS
   ================================================================= */
.btn {
  --bg: transparent;
  --fg: var(--ink);
  --bd: var(--hairline-bold);
  display: inline-flex; align-items: center; gap: 8px;
  height: 38px;
  padding: 0 16px;
  background: var(--bg);
  color: var(--fg);
  border: 1px solid var(--bd);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: -0.005em;
  transition: transform 120ms ease, background 160ms ease, color 160ms ease, border-color 160ms ease;
  white-space: nowrap;
  text-decoration: none;
}
.btn:hover { transform: translateY(-1px); }
.btn.primary {
  --bg: var(--signal);
  --fg: var(--signal-on);
  --bd: var(--signal);
}
.btn.primary:hover { --bg: color-mix(in oklab, var(--signal) 88%, white); }
.btn.ghost { color: var(--ink-soft); border-color: transparent; }
.btn.ghost:hover { color: var(--ink); }
.btn.lg { height: 46px; padding: 0 22px; font-size: 15px; }
.btn .kbd {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 11px;
  color: color-mix(in oklab, var(--fg) 70%, transparent);
  background: color-mix(in oklab, var(--fg) 12%, transparent);
  padding: 1px 6px;
  border-radius: 4px;
}

/* =================================================================
   SLAB SECTIONS
   ================================================================= */
section.slab {
  padding: calc(110px * var(--rhythm, 1)) 0;
  position: relative;
}
.slab-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 48px;
  align-items: end;
  margin-bottom: 56px;
}
@media (max-width: 880px) { .slab-header { grid-template-columns: 1fr; gap: 18px; } }
.slab-title { font-size: clamp(36px, 4.5vw, 64px); }
.slab-lede {
  color: var(--ink-soft);
  font-size: 16px;
  line-height: 1.6;
  max-width: 52ch;
}

/* =================================================================
   FORM CONTROLS (signup / login / contact)
   ================================================================= */
.field { display: flex; flex-direction: column; gap: 8px; }
.field label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.input, .select {
  height: 46px;
  padding: 0 14px;
  background: var(--surface);
  border: 1px solid var(--hairline-bold);
  border-radius: 10px;
  color: var(--ink);
  font-family: inherit;
  font-size: 15px;
  transition: border-color 140ms ease, box-shadow 140ms ease;
  outline: none;
  width: 100%;
}
.input:focus, .select:focus {
  border-color: var(--signal);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--signal) 26%, transparent);
}
.input::placeholder { color: var(--ink-faint); }
.input-prefix {
  position: relative;
  display: flex; align-items: center;
}
.input-prefix .input { padding-left: 12px; }
.input-prefix .suffix {
  position: absolute; right: 14px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  color: var(--ink-faint);
  pointer-events: none;
}
.field .hint {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--ink-faint);
}

/* =================================================================
   FOOTER
   ================================================================= */
footer.foot {
  border-top: 1px solid var(--hairline);
  padding: 42px 0 64px;
  font-size: 13px;
  color: var(--ink-soft);
  position: relative; z-index: 2;
}
.foot-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
@media (max-width: 880px) { .foot-grid { grid-template-columns: repeat(2, 1fr); } }
.foot-col h5 {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--ink-faint);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 0 0 14px;
  font-weight: 500;
}
.foot-col ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.foot-col a { color: var(--ink-soft); transition: color 120ms ease; }
.foot-col a:hover { color: var(--ink); }
.foot-bottom {
  border-top: 1px solid var(--hairline);
  padding-top: 24px;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 16px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--ink-faint);
  letter-spacing: 0.02em;
}

/* =================================================================
   COMMON CHROME — chat bubbles, tool cards (used in landing demo)
   ================================================================= */
.chat {
  background: var(--surface);
  border: 1px solid var(--hairline-bold);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: var(--shadow-lift);
}
.chat-bar {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--hairline);
  background: var(--surface-2);
}
.chat-bar .agent-avatar {
  width: 28px; height: 28px; border-radius: 8px;
  background: var(--bg-deep);
  border: 1px solid var(--hairline-bold);
  display: grid; place-items: center;
  overflow: hidden;
}
.chat-bar .agent-avatar img { width: 22px; height: 22px; }
.chat-bar .agent-name {
  font-family: 'Instrument Serif', serif;
  font-size: 18px;
  color: var(--ink-display);
  line-height: 1;
}
.chat-bar .agent-name em { color: var(--signal); font-style: italic; }
.chat-bar .agent-sub {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--ink-faint);
  margin-left: 4px;
}
.msg { display: flex; flex-direction: column; gap: 6px; max-width: 88%; }
.msg .meta {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--ink-faint);
  letter-spacing: 0.02em;
}
.msg.user { align-self: flex-end; }
.msg.user .bubble {
  background: color-mix(in oklab, var(--ink) 8%, var(--surface));
  border: 1px solid var(--hairline-bold);
  color: var(--ink);
  border-radius: 12px 12px 4px 12px;
  padding: 12px 14px;
  font-size: 14.5px;
  line-height: 1.5;
}
.msg.qais .bubble {
  background: var(--surface-2);
  border: 1px solid var(--hairline);
  color: var(--ink);
  border-radius: 4px 12px 12px 12px;
  padding: 14px 16px;
  font-size: 14.5px;
  line-height: 1.55;
}
.msg.qais .bubble p { margin: 0 0 10px; }
.msg.qais .bubble p:last-child { margin-bottom: 0; }
.msg.qais .bubble .code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--signal);
  background: color-mix(in oklab, var(--signal) 8%, transparent);
  padding: 1px 6px;
  border-radius: 4px;
}

.tool {
  background: color-mix(in oklab, var(--signal) 6%, var(--surface-2));
  border: 1px solid color-mix(in oklab, var(--signal) 20%, var(--hairline));
  border-radius: 10px;
  overflow: hidden;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  margin-top: 10px;
}
.tool-head {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px;
  border-bottom: 1px solid color-mix(in oklab, var(--signal) 14%, var(--hairline));
  background: color-mix(in oklab, var(--signal) 4%, transparent);
}
.tool-head .glyph {
  width: 18px; height: 18px; border-radius: 5px;
  background: color-mix(in oklab, var(--signal) 22%, var(--surface));
  border: 1px solid color-mix(in oklab, var(--signal) 32%, var(--hairline));
  color: var(--signal);
  display: grid; place-items: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
}
.tool-head .label { color: var(--ink); font-weight: 500; }
.tool-head .args { color: var(--ink-soft); }
.tool-head .status { margin-left: auto; color: var(--signal); display: flex; align-items: center; gap: 6px; }
.tool-head .status .pip { width: 5px; height: 5px; border-radius: 50%; background: var(--signal); box-shadow: 0 0 0 3px color-mix(in oklab, var(--signal) 22%, transparent); }
.tool-body { padding: 10px 12px; display: flex; flex-direction: column; gap: 6px; color: var(--ink-soft); }
.tool-body .kv { display: flex; gap: 12px; }
.tool-body .kv .k { color: var(--ink-faint); width: 100px; flex-shrink: 0; }
.tool-body .kv .v { color: var(--ink); }
.tool-body .kv .v .pill {
  background: color-mix(in oklab, var(--signal) 14%, transparent);
  color: var(--signal);
  padding: 1px 7px;
  border-radius: 999px;
  font-size: 11px;
}

/* Reveal-on-scroll */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 700ms cubic-bezier(.2,.7,.2,1), transform 700ms cubic-bezier(.2,.7,.2,1);
}
.reveal.in { opacity: 1; transform: none; }

/* =================================================================
   LOGO STRIP — early customers (honest framing)
   ================================================================= */
.logos-wrap {
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  padding: 36px 0;
}
.logos-row {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 56px;
  align-items: center;
}
@media (max-width: 880px) { .logos-row { grid-template-columns: 1fr; gap: 18px; } }
.logos-row .lede {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-faint);
  max-width: 22ch;
  line-height: 1.6;
}
.logos-row .lede em {
  display: block;
  font-family: 'Instrument Serif', serif;
  font-style: italic;
  font-size: 18px;
  color: var(--ink);
  text-transform: none;
  letter-spacing: 0;
  margin-top: 4px;
}
.logos-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0;
}
@media (max-width: 980px) { .logos-grid { grid-template-columns: repeat(3, 1fr); } }
.logos-grid .logo {
  display: flex; align-items: center; justify-content: center;
  padding: 16px;
  border-right: 1px solid var(--hairline);
  color: var(--ink-soft);
  font-family: 'Instrument Serif', serif;
  font-style: italic;
  font-size: 22px;
  letter-spacing: -0.01em;
  position: relative;
  min-height: 60px;
}
.logos-grid .logo:last-child { border-right: 0; }
.logos-grid .logo .stamp {
  position: absolute; bottom: 4px; right: 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  color: var(--ink-faint);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.logos-grid .logo.real { color: var(--ink); }
.logos-grid .logo.real img { max-height: 30px; max-width: 130px; opacity: 0.9; }
@media (max-width: 980px) {
  .logos-grid .logo:nth-child(3) { border-right: 0; }
  .logos-grid .logo:nth-child(n+4) { border-top: 1px solid var(--hairline); }
}