/* =========================================================
   paramiko · landing styles
   ========================================================= */

:root{
  --bg:         #0E1117;
  --bg-2:       #0B0E13;
  --surface:    #161B22;
  --surface-2: #1F242C;
  --text:       #F0F6FC;
  --muted:      #8B949E;
  --border:     rgba(240,246,252,0.08);
  --border-2:   rgba(240,246,252,0.14);
  --accent:     #A371F7;
  --accent-2:   #FF7849;
  --accent-3:   #7EE787;
  --red:        #FF6B6B;
  --amber:      #FFB454;
  --card-bg:    rgba(31,36,44,0.85);
  --card-bg-2:  rgba(22,27,34,0.85);
  --input-bg:   rgba(11,14,19,0.6);
  --input-bg-focus: rgba(11,14,19,0.85);

  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body:    "Inter", system-ui, sans-serif;
  --font-mono:    "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --radius-sm: 10px;
  --radius:    16px;
  --radius-lg: 24px;

  --max: 1280px;
  --gutter: clamp(20px, 4vw, 56px);

  --ease: cubic-bezier(.2,.7,.2,1);
}

/* ----------------- reset ----------------- */
*,*::before,*::after{ box-sizing:border-box; }
html,body{ margin:0; padding:0; }
html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
body{
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  font-feature-settings: "ss01","cv01","cv11";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img,svg{ display:block; max-width:100%; }
a{ color: inherit; text-decoration:none; }
button{ font: inherit; color: inherit; background:none; border:0; cursor:pointer; }
ul,ol{ margin:0; padding:0; list-style:none; }
:focus-visible{ outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

/* ----------------- language switcher behaviour ----------------- */
html[lang="ru"] .lang-en{ display:none; }
html[lang="en"] .lang-ru{ display:none; }

/* ----------------- background layers ----------------- */
.bg-layer{ position:fixed; inset:0; pointer-events:none; z-index:-1; }
.bg-aurora{
  background:
    radial-gradient(60% 50% at 20% 10%,  rgba(163,113,247,0.28), transparent 70%),
    radial-gradient(50% 40% at 85% 30%,  rgba(255,120,73,0.18),  transparent 70%),
    radial-gradient(70% 60% at 50% 95%,  rgba(126,231,135,0.10), transparent 70%);
  filter: blur(6px) saturate(115%);
}
.bg-noise{
  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='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 0.06 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  opacity: 0.55;
  mix-blend-mode: overlay;
}
.bg-grid{
  background-image:
    linear-gradient(to right,  rgba(240,246,252,0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(240,246,252,0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at 50% 30%, #000 35%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 30%, #000 35%, transparent 75%);
}

/* ----------------- type / utility ----------------- */
.mono{ font-family: var(--font-mono); font-weight:500; letter-spacing:0.01em; }
.display{
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(40px, 5.2vw, 84px);
  line-height: 1.04;
  letter-spacing: -0.025em;
  margin: 0;
  text-wrap: balance;
  word-wrap: break-word;
  overflow-wrap: break-word;
  hyphens: manual;
}
.display--sm{ font-size: clamp(30px, 4.2vw, 58px); }
.display__accent{
  background: linear-gradient(100deg, var(--accent) 0%, var(--accent-2) 100%);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
  font-style: italic;
}
.lead{
  color: var(--muted);
  font-size: clamp(16px, 1.3vw, 19px);
  max-width: 56ch;
  margin: 24px 0 0;
}
.eyebrow{
  display:inline-flex; align-items:center; gap:10px;
  font-family: var(--font-mono); font-size:12px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.dot{
  width:8px; height:8px; border-radius:50%; display:inline-block;
  background: var(--muted);
}
.dot--accent{ background: var(--accent); box-shadow: 0 0 12px var(--accent); }
.dot--success{ background: var(--accent-3); box-shadow: 0 0 8px var(--accent-3); }
.dot--red{ background: var(--red); }
.dot--amber{ background: var(--amber); }
.dot--green{ background: var(--accent-3); }

/* ----------------- buttons ----------------- */
.btn{
  position:relative;
  display:inline-flex; align-items:center; gap:8px;
  padding: 14px 22px;
  border-radius: 999px;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 15px;
  line-height: 1;
  transition: transform .25s var(--ease), background .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease), box-shadow .25s var(--ease);
  will-change: transform;
}
.btn__arrow{
  display:inline-block;
  transition: transform .3s var(--ease);
}
.btn:hover .btn__arrow{ transform: translateX(4px); }
.btn--primary{
  background: linear-gradient(120deg, var(--accent) 0%, #7C5DD9 100%);
  color: #0E1117;
  font-weight: 600;
  box-shadow:
    0 0 0 1px rgba(163,113,247,0.5),
    0 12px 32px -8px rgba(163,113,247,0.55),
    inset 0 1px 0 rgba(255,255,255,0.25);
}
.btn--primary:hover{
  box-shadow:
    0 0 0 1px rgba(163,113,247,0.8),
    0 18px 40px -8px rgba(163,113,247,0.7),
    inset 0 1px 0 rgba(255,255,255,0.3);
}
.btn--ghost{
  border: 1px solid var(--border-2);
  color: var(--text);
  background: rgba(255,255,255,0.02);
  backdrop-filter: blur(6px);
}
.btn--ghost:hover{
  border-color: var(--accent);
  background: rgba(163,113,247,0.06);
}

/* ----------------- nav ----------------- */
.nav{
  position: sticky; top:0; z-index: 50;
  display:flex; align-items:center; justify-content:space-between; gap:24px;
  padding: 18px var(--gutter);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: linear-gradient(180deg, rgba(14,17,23,0.85), rgba(14,17,23,0.55));
  border-bottom: 1px solid var(--border);
}
.nav__brand{
  display:inline-flex; align-items:center; gap:10px;
  color: var(--text);
}
.brand__mark{
  display:inline-grid; place-items:center;
  width: 28px; height: 28px;
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(163,113,247,0.18), rgba(255,120,73,0.18));
  border: 1px solid var(--border-2);
  color: var(--accent);
}
.brand__name{
  font-family: var(--font-display); font-weight: 600; font-size: 18px; letter-spacing:-0.01em;
}
.brand__dot{ color: var(--accent); font-size: 10px; }
.nav__links{ display:flex; gap: 28px; }
.nav__links a{
  font-size: 14px; color: var(--muted);
  transition: color .2s var(--ease);
}
.nav__links a:hover{ color: var(--text); }
.nav__actions{ display:flex; align-items:center; gap: 14px; }
.lang-switch{
  display:inline-flex; align-items:center; gap:6px;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-family: var(--font-mono); font-size: 12px;
  color: var(--muted);
}
.lang-switch button{ padding: 2px 4px; color: var(--muted); border-radius: 4px; }
.lang-switch button.is-active{ color: var(--text); }
.lang-switch button:hover{ color: var(--text); }
@media (max-width: 880px){
  .nav__links{ display:none; }
}

/* ----------------- hero ----------------- */
.hero{
  padding: 96px var(--gutter) 80px;
}
.hero__inner{
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: clamp(40px, 6vw, 88px);
  align-items: center;
}
@media (max-width: 1080px){
  .hero__inner{ grid-template-columns: 1fr; gap: 48px; }
  .hero{ padding-top: 56px; }
}
.hero__copy{ position:relative; }
.hero__ctas{ display:flex; gap:12px; flex-wrap:wrap; margin: 36px 0 44px; }
.hero__metrics{
  display:flex; gap: 28px; flex-wrap:wrap;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
.hero__metrics li{
  display:flex; flex-direction:column; gap: 4px;
  font-size: 13px; color: var(--muted);
}
.hero__metrics b{
  font-size: 28px; font-family: var(--font-mono); color: var(--text);
  font-weight: 500;
}

/* ----------------- graph frame ----------------- */
.hero__graph{ position:relative; }
.graph-frame{
  position: relative;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-2);
  background:
    radial-gradient(80% 60% at 50% 0%, rgba(163,113,247,0.10), transparent 60%),
    linear-gradient(180deg, rgba(22,27,34,0.95), rgba(22,27,34,0.7));
  box-shadow:
    0 30px 60px -20px rgba(0,0,0,0.6),
    inset 0 1px 0 rgba(255,255,255,0.04);
  overflow: hidden;
  backdrop-filter: blur(8px);
}
.graph-frame__header{
  display:flex; align-items:center; gap: 8px;
  padding: 12px 18px;
  border-bottom: 1px solid var(--border);
  background: rgba(11,14,19,0.55);
  font-size: 12px;
}
.graph-frame__title{ color: var(--muted); margin-left: 6px; }
.graph-frame__status{ margin-left: auto; display:inline-flex; align-items:center; gap:6px; color: var(--accent-3); font-size:11px; }
.graph{ display:block; width: 100%; height: auto; aspect-ratio: 1/1; }
.graph-frame__footer{
  display:flex; gap: 18px; justify-content: space-between; flex-wrap: wrap;
  padding: 12px 18px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 12px;
  background: rgba(11,14,19,0.6);
}
.graph-frame__footer b{ color: var(--text); font-weight: 500; }
.graph-frame__footer .success{ color: var(--accent-3); }

/* graph nodes */
.graph .node-bg{ fill: var(--surface-2); stroke: var(--border-2); stroke-width: 1.2; }
.graph .node-core-bg{ fill: #1a1430; stroke: var(--accent); stroke-width: 1.6; }
.graph .node-label{ fill: var(--text); font-family: var(--font-mono); font-size: 12px; font-weight: 500; text-anchor: middle; dominant-baseline: middle; }
.graph .node-label--core{ fill: var(--accent); }
.graph .edge{ stroke: rgba(240,246,252,0.12); stroke-width: 1.2; fill:none; }
.graph .pulse{ fill: var(--accent); }
.graph .pulse-2{ fill: var(--accent-2); }
.graph .pulse-3{ fill: var(--accent-3); }
.graph .node-ring{
  fill: none; stroke: var(--accent); stroke-width: 1.4; opacity: 0;
  transform-origin: center;
  animation: ring 3s var(--ease) infinite;
}
@keyframes ring{
  0%   { opacity: 0.7; transform: scale(1); }
  100% { opacity: 0;   transform: scale(2.2); }
}

/* ----------------- strip / marquee ----------------- */
.strip{
  display:flex; align-items:center; gap: 20px;
  max-width: var(--max);
  margin: 0 auto;
  padding: 28px var(--gutter);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.strip__label{ color: var(--muted); font-size: 12px; flex-shrink: 0; }
.marquee{ overflow: hidden; flex: 1; mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.marquee__track{
  display:inline-flex; gap: 40px;
  animation: scroll 38s linear infinite;
  white-space: nowrap;
}
.marquee__track span{
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--muted);
  letter-spacing: -0.01em;
  position: relative;
}
.marquee__track span::after{
  content: "·";
  position: absolute;
  right: -22px;
  color: var(--border-2);
}
@keyframes scroll{ to{ transform: translateX(-50%); } }

/* ----------------- sections ----------------- */
.section{
  max-width: var(--max);
  margin: 0 auto;
  padding: 96px var(--gutter);
}
.section__head{ margin-bottom: 56px; max-width: 880px; }
.section__head--center{ text-align: center; margin-left: auto; margin-right: auto; }
.section__head .eyebrow{ margin-bottom: 18px; }

/* ----------------- bento (services) ----------------- */
.bento{
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}
.bento__card{
  position: relative;
  padding: 28px;
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, rgba(31,36,44,0.85), rgba(22,27,34,0.85));
  border: 1px solid var(--border);
  overflow: hidden;
  grid-column: span 3;
  display:flex; flex-direction: column;
  min-height: 280px;
  transition: border-color .3s var(--ease), transform .35s var(--ease);
}
.bento__card::before{
  content: "";
  position: absolute; inset: 0;
  border-radius: var(--radius-lg);
  padding: 1px;
  background: linear-gradient(135deg, transparent 40%, rgba(163,113,247,0.4), transparent 70%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  opacity: 0;
  transition: opacity .35s var(--ease);
  pointer-events: none;
}
.bento__card:hover{ transform: translateY(-3px); }
.bento__card:hover::before{ opacity: 1; }
.bento__card--lg{ grid-column: span 4; min-height: 360px; }
.bento__card:nth-child(2){ grid-column: span 2; }
.bento__card:nth-child(3){ grid-column: span 2; }
.bento__head{ display:flex; justify-content: space-between; align-items: center; margin-bottom: 12px; color: var(--muted); font-size: 12px; }
.bento__tag{
  font-family: var(--font-mono); font-size: 11px;
  padding: 4px 10px; border-radius: 999px;
  background: rgba(163,113,247,0.12); color: var(--accent);
  border: 1px solid rgba(163,113,247,0.3);
  text-transform: uppercase; letter-spacing: 0.06em;
}
.bento__card h3{
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(22px, 2vw, 30px);
  margin: 0 0 12px;
  letter-spacing: -0.01em;
}
.bento__card p{ color: var(--muted); margin: 0; flex: 1; }
.chips{ display:flex; flex-wrap:wrap; gap: 6px; margin-top: 18px; }
.chips li{
  font-family: var(--font-mono); font-size: 11px;
  padding: 5px 10px; border-radius: 999px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  color: var(--muted);
}
.mini-term{
  margin: 18px 0 0;
  padding: 14px 16px;
  font-size: 12px; line-height: 1.6;
  background: rgba(11,14,19,0.85);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  overflow-x: auto;
}
.mini-term .prompt{ color: var(--accent); }
.mini-term .muted{ color: var(--muted); }
.mini-term .ok{ color: var(--accent-3); }

.flow{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 22px;
  align-items: center;
  justify-items: center;
}
.flow__node{
  font-family: var(--font-mono); font-size: 12px;
  padding: 10px 14px; border-radius: 10px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  color: var(--muted);
  min-width: 80px; text-align:center;
}
.flow__node--core{
  background: linear-gradient(120deg, rgba(163,113,247,0.2), rgba(255,120,73,0.15));
  color: var(--text);
  border-color: rgba(163,113,247,0.4);
}
.flow__node--leaf{ font-size: 11px; padding: 6px 10px; }
.flow__line{ width: 100%; height: 1px; background: linear-gradient(90deg, transparent, var(--border-2), transparent); }
.flow__line--down{ grid-column: 2; width: 1px; height: 16px; background: linear-gradient(180deg, var(--border-2), transparent); justify-self: center; }

@media (max-width: 980px){
  .bento{ grid-template-columns: repeat(2, 1fr); }
  .bento__card, .bento__card--lg, .bento__card:nth-child(2), .bento__card:nth-child(3){ grid-column: span 2; }
}

/* ----------------- process / terminal ----------------- */
.section--process{ padding-top: 64px; }
.process{
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 32px;
  align-items: start;
}
@media (max-width: 980px){
  .process{ grid-template-columns: 1fr; gap: 28px; }
  .process__terminal{ position: relative !important; top: 0 !important; }
  .term-body{ min-height: 0 !important; }
}

.process__terminal{
  position: sticky; top: 96px;
  border-radius: var(--radius);
  border: 1px solid var(--border-2);
  background: linear-gradient(180deg, rgba(11,14,19,0.95), rgba(11,14,19,0.85));
  overflow: hidden;
  box-shadow: 0 30px 60px -20px rgba(0,0,0,0.5);
}
.term-head{
  display:flex; align-items:center; gap: 8px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  background: rgba(0,0,0,0.4);
  font-size: 12px;
}
.term-head__title{ color: var(--muted); margin-left: 8px; }
.term-body{
  padding: 22px 22px 28px;
  margin: 0;
  font-size: 13px; line-height: 1.7;
  color: var(--text);
  min-height: 320px;
  white-space: pre-wrap;
}
.term-body .prompt{ color: var(--accent); }
.term-body .muted{ color: var(--muted); }
.term-body .ok{ color: var(--accent-3); }
.term-body .warn{ color: var(--accent-2); }
.term-body .caret{
  display: inline-block; width: 8px; height: 14px;
  background: var(--accent);
  vertical-align: -2px; margin-left: 1px;
  animation: caret 1s steps(1) infinite;
}
@keyframes caret{ 50%{ opacity: 0; } }

.steps{ display:flex; flex-direction: column; gap: 14px; }
.step{
  position: relative;
  padding: 22px 22px 22px 76px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(31,36,44,0.6), rgba(22,27,34,0.6));
  transition: border-color .3s var(--ease), transform .3s var(--ease);
}
.step:hover{ border-color: var(--accent); transform: translateX(4px); }
.step__num{
  position: absolute; left: 22px; top: 22px;
  font-size: 16px; color: var(--accent);
  padding: 4px 8px; border-radius: 6px;
  background: rgba(163,113,247,0.08);
  border: 1px solid rgba(163,113,247,0.25);
}
.step h4{
  font-family: var(--font-display); font-weight: 600; font-size: 20px;
  margin: 0 0 6px; letter-spacing: -0.01em;
}
.step p{ color: var(--muted); margin: 0; font-size: 15px; }

/* ----------------- cases ----------------- */
.cases{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
@media (max-width: 880px){ .cases{ grid-template-columns: 1fr; } }

.case-card{
  position: relative;
  display:flex; flex-direction: column; gap: 16px;
  padding: 32px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: linear-gradient(160deg, rgba(31,36,44,0.85), rgba(22,27,34,0.85));
  text-decoration: none; color: inherit;
  min-height: 320px;
  transition: border-color .3s var(--ease), transform .35s var(--ease), background .35s var(--ease);
  overflow: hidden;
}
.case-card::before{
  content: "";
  position: absolute; inset: 0;
  border-radius: var(--radius-lg);
  background: radial-gradient(60% 50% at 0% 0%, rgba(163,113,247,0.10), transparent 60%);
  opacity: 0;
  transition: opacity .35s var(--ease);
  pointer-events: none;
}
.case-card:hover{
  border-color: var(--accent);
  transform: translateY(-4px);
}
.case-card:hover::before{ opacity: 1; }
.case-card:hover .case-card__arrow{ transform: translate(4px, -4px); }

.case-card__top{
  display:flex; align-items: center; justify-content: space-between; gap: 12px;
  color: var(--muted); font-size: 12px;
}
.case-card__num{
  font-size: 12px; color: var(--accent);
  padding: 4px 8px; border-radius: 6px;
  background: rgba(163,113,247,0.08);
  border: 1px solid rgba(163,113,247,0.25);
}
.case-card__tag{
  font-family: var(--font-mono); font-size: 11px;
  padding: 4px 10px; border-radius: 999px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  color: var(--muted);
  text-transform: lowercase;
}
.case-card__name{
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(30px, 3.5vw, 44px);
  letter-spacing: -0.02em;
  margin: 0;
  background: linear-gradient(120deg, var(--text) 0%, var(--accent) 100%);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
}
.case-card__lead{ color: var(--muted); margin: 0; flex: 1; }
.case-card__metrics{
  display:flex; gap: 24px; flex-wrap: wrap;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}
.case-card__metrics li{
  display:flex; flex-direction: column; gap: 4px;
  font-size: 11px; color: var(--muted);
  text-transform: uppercase; letter-spacing: 0.06em;
}
.case-card__metrics b{
  font-family: var(--font-mono); font-weight: 500;
  font-size: 20px; color: var(--text);
}
.case-card__link{
  display:inline-flex; align-items: center; gap: 8px;
  font-size: 13px;
  color: var(--accent);
}
.case-card__arrow{
  display:inline-block;
  transition: transform .3s var(--ease);
}
.case-card--internal{
  background:
    radial-gradient(60% 80% at 0% 100%, rgba(255,120,73,0.10), transparent 60%),
    linear-gradient(160deg, rgba(31,36,44,0.85), rgba(22,27,34,0.85));
  cursor: default;
}
.case-card--internal:hover{ transform: translateY(-2px); border-color: var(--accent-2); }
.case-card--internal .case-card__name{
  background: linear-gradient(120deg, var(--text) 0%, var(--accent-2) 100%);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
}
.case-card--internal .case-card__link{ color: var(--accent-2); }

/* summary / aggregate card — full width, with CTA */
.case-card--summary{
  grid-column: span 2;
  min-height: auto;
  cursor: pointer;
  background:
    radial-gradient(60% 80% at 0% 50%,  rgba(163,113,247,0.16), transparent 65%),
    radial-gradient(60% 80% at 100% 50%, rgba(255,120,73,0.14), transparent 65%),
    linear-gradient(160deg, rgba(31,36,44,0.9), rgba(22,27,34,0.9));
  border-color: rgba(163,113,247,0.30);
}
.case-card--summary .case-card__num{
  font-size: 18px;
  padding: 2px 10px;
}
.case-card--summary:hover{
  border-color: var(--accent);
  transform: translateY(-3px);
}
.case-card--summary:hover .summary__cta .case-card__arrow{
  transform: translateX(6px);
}
.summary{
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 40px;
  align-items: center;
  margin-top: 8px;
}
.summary__left{ display:flex; flex-direction: column; gap: 16px; }
.summary__cta{
  align-self: flex-start;
  margin-top: 6px;
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid rgba(163,113,247,0.40);
  background: rgba(163,113,247,0.08);
  color: var(--text);
  transition: background .25s var(--ease), border-color .25s var(--ease);
}
.summary__cta:hover{
  background: rgba(163,113,247,0.16);
  border-color: var(--accent);
}
.summary__cta .case-card__arrow{ color: var(--accent); }
.summary__right{
  display:flex; flex-direction: column; align-items: flex-end; gap: 18px;
  padding-left: 24px;
  border-left: 1px solid var(--border);
}
.summary__big{
  font-size: clamp(56px, 8vw, 112px);
  font-weight: 500;
  letter-spacing: -0.04em;
  line-height: 1;
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
  text-shadow: 0 0 60px rgba(163,113,247,0.25);
}
.summary__chips{
  display:flex; flex-wrap: wrap; gap: 6px;
  justify-content: flex-end;
  max-width: 280px;
}
.summary__chips li{
  font-family: var(--font-mono); font-size: 11px;
  padding: 5px 10px; border-radius: 999px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  color: var(--muted);
}
@media (max-width: 880px){
  .case-card--summary{ grid-column: 1; }
  .summary{ grid-template-columns: 1fr; gap: 24px; }
  .summary__right{
    align-items: flex-start;
    padding-left: 0;
    padding-top: 20px;
    border-left: 0;
    border-top: 1px solid var(--border);
  }
  .summary__chips{ justify-content: flex-start; }
}

/* ----------------- calculator ----------------- */
.section--calc{ padding-top: 72px; }
.calc{
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 24px;
  align-items: stretch;
}
@media (max-width: 980px){ .calc{ grid-template-columns: 1fr; } }

.calc__inputs{
  display: flex; flex-direction: column; gap: 28px;
  padding: 36px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: linear-gradient(160deg, rgba(31,36,44,0.7), rgba(22,27,34,0.7));
}
.calc__field{ display:flex; flex-direction: column; gap: 10px; }
.calc__row{
  display:flex; align-items: center; justify-content: space-between; gap: 16px;
}
.calc__label{
  font-family: var(--font-display);
  font-size: 15px;
  color: var(--text);
  line-height: 1.35;
  letter-spacing: -0.01em;
}
.calc__value{
  font-size: 22px;
  color: var(--accent);
  padding: 4px 12px;
  border-radius: 8px;
  background: rgba(163,113,247,0.10);
  border: 1px solid rgba(163,113,247,0.30);
  min-width: 72px;
  text-align: center;
}
.calc__slider{
  -webkit-appearance: none; appearance: none;
  width: 100%; height: 6px;
  background: var(--surface-2);
  border-radius: 999px;
  outline: none;
  cursor: pointer;
}
.calc__slider::-webkit-slider-thumb{
  -webkit-appearance: none; appearance: none;
  width: 22px; height: 22px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #7C5DD9);
  border: 2px solid #1a1430;
  box-shadow: 0 0 0 4px rgba(163,113,247,0.18), 0 6px 18px -4px rgba(163,113,247,0.6);
  cursor: pointer;
  transition: transform .2s var(--ease);
}
.calc__slider::-webkit-slider-thumb:hover{ transform: scale(1.1); }
.calc__slider::-moz-range-thumb{
  width: 22px; height: 22px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #7C5DD9);
  border: 2px solid #1a1430;
  box-shadow: 0 0 0 4px rgba(163,113,247,0.18), 0 6px 18px -4px rgba(163,113,247,0.6);
  cursor: pointer;
}
.calc__scale{
  display:flex; justify-content: space-between;
  font-size: 11px; color: var(--muted);
}
.calc__cta{ align-self: flex-start; margin-top: 8px; }

.calc__results{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  padding: 36px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-2);
  background:
    radial-gradient(70% 50% at 50% 0%, rgba(163,113,247,0.18), transparent 60%),
    linear-gradient(180deg, rgba(31,36,44,0.85), rgba(22,27,34,0.85));
  box-shadow: 0 30px 60px -20px rgba(0,0,0,0.5);
}
.calc__result{
  display:flex; flex-direction: column; gap: 8px;
  padding: 22px;
  border-radius: var(--radius);
  background: rgba(11,14,19,0.55);
  border: 1px solid var(--border);
}
.calc__result--main{
  grid-column: span 2;
  background:
    radial-gradient(60% 80% at 0% 50%, rgba(163,113,247,0.20), transparent 65%),
    rgba(11,14,19,0.65);
  border-color: rgba(163,113,247,0.35);
}
.calc__result--payback{
  grid-column: span 2;
  background:
    radial-gradient(60% 80% at 100% 50%, rgba(255,120,73,0.20), transparent 65%),
    rgba(11,14,19,0.65);
  border-color: rgba(255,120,73,0.30);
}
.calc__result--payback .calc__num{
  background: linear-gradient(120deg, var(--text), var(--accent-2));
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
}
.calc__caption{
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}
.calc__big{
  font-size: clamp(40px, 5.6vw, 72px);
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1;
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
}
.calc__num{
  font-size: clamp(28px, 3.4vw, 42px);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--text);
}
.calc__unit{ font-size: 0.5em; color: var(--muted); margin-left: 4px; }
.calc__note{
  grid-column: span 2;
  font-size: 12px; color: var(--muted);
  margin: 4px 0 0; line-height: 1.55;
}
@media (max-width: 540px){
  .calc__inputs, .calc__results{ padding: 24px; }
  .calc__row{ flex-wrap: wrap; }
}

/* ----------------- why bento ----------------- */
.why-bento{
  display: grid; grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}
.why-card{
  position: relative;
  padding: 28px;
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, rgba(31,36,44,0.7), rgba(22,27,34,0.7));
  border: 1px solid var(--border);
  grid-column: span 2;
  transition: border-color .3s var(--ease), transform .3s var(--ease);
}
.why-card:hover{ border-color: var(--accent); transform: translateY(-3px); }
.why-card--wide{ grid-column: span 4; min-height: 200px; }
.why-card--stat{
  grid-column: span 2;
  display:flex; flex-direction: column; gap: 8px;
  justify-content: center;
  background:
    radial-gradient(60% 80% at 50% 0%, rgba(163,113,247,0.18), transparent 60%),
    linear-gradient(180deg, rgba(31,36,44,0.7), rgba(22,27,34,0.7));
}
.why-card--quote{ grid-column: span 6; }
.why-card__num{
  font-size: 12px; color: var(--accent); margin-bottom: 16px;
  display:inline-block;
  padding: 4px 10px; border-radius: 999px;
  background: rgba(163,113,247,0.08);
  border: 1px solid rgba(163,113,247,0.25);
}
.why-card h4{
  font-family: var(--font-display); font-weight: 600; font-size: 22px;
  margin: 0 0 8px; letter-spacing: -0.01em;
}
.why-card p{ color: var(--muted); margin: 0; }
.stat{
  font-size: clamp(48px, 6vw, 76px);
  font-weight: 500;
  color: var(--text);
  letter-spacing: -0.04em;
  line-height: 1;
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
}
.quote-mark{
  font-size: 72px; line-height: 0.5; color: var(--accent);
  margin: 0; opacity: 0.6;
}
.quote{
  font-family: var(--font-display); font-size: clamp(22px, 2.4vw, 32px);
  font-weight: 500;
  letter-spacing: -0.01em;
  margin: 16px 0 0; color: var(--text);
  max-width: 38ch;
}
@media (max-width: 980px){
  .why-bento{ grid-template-columns: repeat(2, 1fr); }
  .why-card, .why-card--wide, .why-card--stat, .why-card--quote{ grid-column: span 2; }
}

/* ----------------- FAQ ----------------- */
.faq{
  max-width: 880px;
  display:flex; flex-direction: column; gap: 12px;
}
.faq details{
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(22,27,34,0.5);
  overflow: hidden;
  transition: border-color .3s var(--ease);
}
.faq details[open]{ border-color: var(--accent); }
.faq summary{
  display:flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 20px 24px;
  cursor: pointer;
  font-family: var(--font-display); font-size: clamp(16px, 1.4vw, 19px);
  font-weight: 500;
  list-style: none;
  transition: color .2s var(--ease);
}
.faq summary::-webkit-details-marker{ display:none; }
.faq summary:hover{ color: var(--accent); }
.faq__icon{
  font-family: var(--font-mono); color: var(--accent);
  font-size: 22px; line-height: 1;
  transition: transform .3s var(--ease);
}
.faq details[open] .faq__icon{ transform: rotate(45deg); }
.faq p{ padding: 0 24px 24px; color: var(--muted); margin: 0; }

/* ----------------- CTA ----------------- */
.cta{
  padding: 96px var(--gutter);
  position: relative;
}
.cta__inner{
  max-width: 980px;
  margin: 0 auto;
  padding: 56px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-2);
  background:
    radial-gradient(70% 60% at 50% 0%, rgba(163,113,247,0.18), transparent 65%),
    linear-gradient(180deg, rgba(31,36,44,0.85), rgba(22,27,34,0.85));
  box-shadow: 0 40px 80px -20px rgba(0,0,0,0.6);
}
.cta .eyebrow{ margin-bottom: 18px; }
.cta .lead{ margin-bottom: 36px; }

.form{ display:flex; flex-direction: column; gap: 14px; }
.form__row{
  display:grid; grid-template-columns: 1fr 1fr; gap: 14px;
}
@media (max-width: 680px){ .form__row{ grid-template-columns: 1fr; } }
.form label{ display:flex; flex-direction: column; gap: 8px; }
.form__label{
  font-size: 11px; color: var(--muted);
  text-transform: uppercase; letter-spacing: 0.08em;
}
.form input, .form textarea{
  font: inherit; color: var(--text);
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid var(--border-2);
  background: rgba(11,14,19,0.6);
  transition: border-color .25s var(--ease), background .25s var(--ease);
  resize: none;
}
.form input::placeholder, .form textarea::placeholder{ color: var(--muted); }
.form input:focus, .form textarea:focus{
  border-color: var(--accent);
  background: rgba(11,14,19,0.85);
  outline: none;
}
.form__actions{
  display:flex; align-items:center; gap: 18px; flex-wrap: wrap;
  margin-top: 8px;
}
.form__note{ color: var(--muted); font-size: 12px; }
.form__note a{ color: var(--accent); }
.form__note a:hover{ color: var(--accent-2); }

/* ----------------- footer ----------------- */
.foot{
  max-width: var(--max);
  margin: 0 auto;
  padding: 56px var(--gutter) 36px;
  border-top: 1px solid var(--border);
}
.foot__row{
  display:flex; align-items: center; justify-content: space-between; gap: 24px;
  flex-wrap: wrap;
}
.foot__row--bottom{
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-size: 12px; color: var(--muted);
}
.foot__brand{ display:inline-flex; align-items: center; gap: 10px; }
.foot__tag{ color: var(--muted); font-size: 12px; }
.foot__links{ display:flex; gap: 28px; }
.foot__links a{ color: var(--muted); font-size: 13px; transition: color .2s var(--ease); }
.foot__links a:hover{ color: var(--accent); }
.foot__pulse{ display:inline-flex; align-items: center; gap: 8px; color: var(--accent-3); }

/* ----------------- custom cursor ----------------- */
.cursor{
  position: fixed; top:0; left:0;
  width: 14px; height: 14px;
  border: 1px solid var(--accent);
  border-radius: 50%;
  pointer-events: none;
  transform: translate(-50%, -50%);
  transition: width .2s var(--ease), height .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease);
  z-index: 9999;
  mix-blend-mode: difference;
  display: none;
}
@media (hover: hover) and (pointer: fine){
  .cursor{ display:block; }
}
.cursor.is-hover{
  width: 36px; height: 36px;
  background: var(--accent);
  border-color: var(--accent);
  opacity: 0.8;
}

/* ----------------- scroll reveal ----------------- */
.reveal{
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .8s var(--ease), transform .8s var(--ease);
}
.reveal.is-in{ opacity: 1; transform: none; }

/* ----------------- reduced motion ----------------- */
@media (prefers-reduced-motion: reduce){
  *, *::before, *::after{
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
  .reveal{ opacity: 1; transform: none; }
}

/* =================================================================
   LIGHT THEME — activated via html[data-theme="light"]
   ================================================================= */
html[data-theme="light"]{
  --bg:         #F7F8FA;
  --bg-2:       #FFFFFF;
  --surface:    #FFFFFF;
  --surface-2: #F0F2F5;
  --text:       #0F1117;
  --muted:      #5B6470;
  --border:     rgba(15,17,23,0.08);
  --border-2:   rgba(15,17,23,0.16);
  --card-bg:    #FFFFFF;
  --card-bg-2:  #FAFBFD;
  --input-bg:   #FFFFFF;
  --input-bg-focus: #FFFFFF;
}
html[data-theme="light"] body{ background: var(--bg); color: var(--text); }
html[data-theme="light"] .bg-aurora{ opacity: 0.30; }
html[data-theme="light"] .bg-noise{ opacity: 0.10; mix-blend-mode: multiply; }
html[data-theme="light"] .bg-grid{
  background-image:
    linear-gradient(to right,  rgba(15,17,23,0.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(15,17,23,0.045) 1px, transparent 1px);
}
html[data-theme="light"] .nav{
  background: linear-gradient(180deg, rgba(247,248,250,0.92), rgba(247,248,250,0.60));
}
html[data-theme="light"] .nav__links a{ color: var(--muted); }
html[data-theme="light"] .nav__links a:hover{ color: var(--text); }
html[data-theme="light"] .lang-switch{ color: var(--muted); }

/* surfaces */
html[data-theme="light"] .bento__card,
html[data-theme="light"] .why-card,
html[data-theme="light"] .case-card,
html[data-theme="light"] .step,
html[data-theme="light"] .stack-col,
html[data-theme="light"] .faq details,
html[data-theme="light"] .strip,
html[data-theme="light"] .graph-frame,
html[data-theme="light"] .process__terminal,
html[data-theme="light"] .calc__inputs,
html[data-theme="light"] .calc__results,
html[data-theme="light"] .calc__result,
html[data-theme="light"] .cta__inner,
html[data-theme="light"] .hero__metrics{
  background: linear-gradient(180deg, #FFFFFF 0%, #FAFBFD 100%);
  border-color: rgba(15,17,23,0.08);
}

/* terminal blocks (process + mini-term) — STAY DARK in light theme too (code aesthetic) */
html[data-theme="light"] .mini-term,
html[data-theme="light"] .term-body,
html[data-theme="light"] .process__terminal{
  background: linear-gradient(180deg, rgba(11,14,19,0.95), rgba(11,14,19,0.85)) !important;
  color: #F0F6FC;
  border-color: rgba(240,246,252,0.14);
}
html[data-theme="light"] .term-head{
  background: rgba(0,0,0,0.4);
  border-color: rgba(240,246,252,0.08);
}
html[data-theme="light"] .term-head__title{ color: #8B949E; }
html[data-theme="light"] .mini-term .muted{ color: rgba(240,246,252,0.55); }

/* hero graph — ADAPTS to light theme (light frame, dark text on white nodes) */
html[data-theme="light"] .graph-frame{
  background:
    radial-gradient(80% 60% at 50% 0%, rgba(163,113,247,0.08), transparent 60%),
    linear-gradient(180deg, #FFFFFF 0%, #FAFBFD 100%) !important;
  border-color: rgba(15,17,23,0.10);
  box-shadow: 0 30px 60px -20px rgba(15,17,23,0.12);
  color: #5B6470;
}
html[data-theme="light"] .graph-frame__header,
html[data-theme="light"] .graph-frame__footer{
  background: rgba(15,17,23,0.025);
  border-color: rgba(15,17,23,0.06);
  color: #5B6470;
}
html[data-theme="light"] .graph-frame__title{ color: #5B6470; }
html[data-theme="light"] .graph-frame__footer b{ color: #0F1117; }
html[data-theme="light"] .graph-frame__status{ color: #2DA44E; }
html[data-theme="light"] .graph-frame__footer .success{ color: #2DA44E; }
html[data-theme="light"] .graph .node-bg{
  fill: #FFFFFF;
  stroke: rgba(15,17,23,0.12);
}
html[data-theme="light"] .graph .node-label{ fill: #0F1117; }
html[data-theme="light"] .graph .node-core-bg{
  fill: rgba(163,113,247,0.08);
  stroke: #A371F7;
}
html[data-theme="light"] .graph .node-label--core{ fill: #7C5DD9; }
html[data-theme="light"] .graph .edge{ stroke: rgba(15,17,23,0.14); }

/* CTA + bento gradient acccents adapt */
html[data-theme="light"] .cta__inner{
  background:
    radial-gradient(70% 60% at 50% 0%, rgba(163,113,247,0.10), transparent 65%),
    linear-gradient(180deg, #FFFFFF 0%, #F4F6FA 100%);
  box-shadow: 0 30px 60px -25px rgba(15,17,23,0.18);
}
html[data-theme="light"] .why-card--stat{
  background:
    radial-gradient(60% 80% at 50% 0%, rgba(163,113,247,0.10), transparent 60%),
    #FFFFFF;
}
html[data-theme="light"] .case-card--internal{
  background:
    radial-gradient(60% 80% at 0% 100%, rgba(255,120,73,0.08), transparent 60%),
    #FFFFFF;
}
html[data-theme="light"] .case-card--summary{
  background:
    radial-gradient(60% 80% at 0% 50%,  rgba(163,113,247,0.10), transparent 65%),
    radial-gradient(60% 80% at 100% 50%, rgba(255,120,73,0.08), transparent 65%),
    #FFFFFF;
}

/* form */
html[data-theme="light"] .form input,
html[data-theme="light"] .form textarea{
  background: #FFFFFF;
  color: var(--text);
  border-color: rgba(15,17,23,0.12);
}
html[data-theme="light"] .form input::placeholder,
html[data-theme="light"] .form textarea::placeholder{ color: rgba(15,17,23,0.35); }

/* buttons */
html[data-theme="light"] .btn--ghost{
  background: rgba(15,17,23,0.02);
  color: var(--text);
  border-color: rgba(15,17,23,0.18);
}
html[data-theme="light"] .btn--ghost:hover{
  background: rgba(163,113,247,0.06);
  border-color: var(--accent);
}

/* misc */
html[data-theme="light"] .chips li{ background: rgba(15,17,23,0.03); color: var(--muted); }
html[data-theme="light"] .flow__node{ background: rgba(15,17,23,0.03); border-color: rgba(15,17,23,0.10); }
html[data-theme="light"] .marquee__track span{ color: var(--muted); }
html[data-theme="light"] .foot__row{ color: var(--muted); }
html[data-theme="light"] details.faq summary{ color: var(--text); }
html[data-theme="light"] .mini-term .muted{ color: rgba(240,246,252,0.6); }
html[data-theme="light"] .calc__slider{ background: rgba(15,17,23,0.08); }

/* =================================================================
   THEME TOGGLE BUTTON
   ================================================================= */
.theme-toggle{
  display: inline-flex; align-items: center; justify-content: center;
  width: 36px; height: 36px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
  color: var(--muted);
  cursor: pointer;
  transition: color .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}
.theme-toggle:hover{ color: var(--text); border-color: var(--accent); background: rgba(163,113,247,0.06); }
.theme-toggle svg{ width: 16px; height: 16px; }
.theme-toggle .moon{ display: none; }
.theme-toggle .sun{ display: block; }
html[data-theme="light"] .theme-toggle{ background: rgba(15,17,23,0.02); }
html[data-theme="light"] .theme-toggle .moon{ display: block; }
html[data-theme="light"] .theme-toggle .sun{ display: none; }
@media (max-width: 720px){
  .theme-toggle{ width: 32px; height: 32px; }
}