/* ============================================================
   THUNDERWORKFLOW — DIRECTION A · VOLTAGE
   Dark editorial. Instrument Serif + Inter + JetBrains Mono.
   Single electric-blue accent. Hairline rules, generous whitespace.
   ============================================================ */

.direction--voltage {
  --ink:           #07080a;
  --ink-2:         #0d0f13;
  --ink-3:         #14171c;
  --paper:         #f6f5f1;
  --line:          rgba(255,255,255,.08);
  --line-2:        rgba(255,255,255,.14);
  --fg:            #f6f5f1;
  --fg-dim:        rgba(246,245,241,.62);
  --fg-mute:       rgba(246,245,241,.42);
  --accent:        oklch(0.78 0.16 250);    /* electric blue */
  --accent-soft:   oklch(0.78 0.16 250 / .14);
  --serif:         'Instrument Serif', 'Times New Roman', serif;
  --sans:          'Inter', system-ui, sans-serif;
  --mono:          'JetBrains Mono', ui-monospace, monospace;

  background: var(--ink);
  color: var(--fg);
  font-family: var(--sans);
}

.direction--voltage em {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  color: var(--fg);
}

/* ---------- shared button ---------- */
.vlt-btn {
  display:inline-flex; align-items:center; justify-content:center;
  gap:10px;
  font-family: var(--sans);
  font-weight: 500;
  font-size: 14px;
  letter-spacing: .01em;
  line-height: 1;
  padding: 14px 22px;
  border-radius: 999px;
  text-decoration: none;
  transition: all .25s ease;
  white-space: nowrap;
  position:relative;
  border:1px solid transparent;
}
.vlt-btn--sm { padding: 10px 16px; font-size: 13px; }
.vlt-btn--lg { padding: 18px 28px; font-size: 15px; }
.vlt-btn--block { width: 100%; }

.vlt-btn--primary {
  background: var(--paper); color: var(--ink);
  box-shadow: 0 1px 0 rgba(255,255,255,.6) inset, 0 8px 28px rgba(180,200,255,.08);
}
.vlt-btn--primary:hover { transform: translateY(-1px); box-shadow: 0 12px 36px rgba(180,200,255,.18); }

.vlt-btn--ghost {
  background: transparent; color: var(--fg);
  border-color: var(--line-2);
}
.vlt-btn--ghost:hover { background: rgba(255,255,255,.04); border-color: rgba(255,255,255,.22); }

/* ---------- nav ---------- */
.vlt-nav {
  position: sticky; top: 0; z-index: 80;
  padding-top: 64px; /* leave room for switcher */
  background: linear-gradient(to bottom, rgba(7,8,10,.92), rgba(7,8,10,.6) 70%, transparent);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.vlt-nav__inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 32px;
  padding-top: 18px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}
.vlt-brand {
  display:inline-flex; align-items:center; gap:10px;
  font-family: var(--serif); font-size: 22px; letter-spacing: -.01em;
  color: var(--fg);
  text-decoration: none;
}
.vlt-brand span { font-style: italic; }
.vlt-bolt { color: var(--accent); }
.vlt-nav__links {
  display:flex; align-items:center; justify-content:center; gap:34px;
  font-size: 14px; color: var(--fg-dim);
}
.vlt-nav__links a { text-decoration: none; transition: color .2s; }
.vlt-nav__links a:hover { color: var(--fg); }
.vlt-nav__lang {
  font-family: var(--mono); font-size: 11px; letter-spacing:.12em;
  border:1px solid var(--line-2); padding: 6px 10px; border-radius: 999px;
}
.vlt-nav__lang span { opacity:.4; margin: 0 4px; }

@media (max-width: 880px) {
  .vlt-nav__links { display: none; }
  .vlt-nav__inner { grid-template-columns: 1fr auto; }
}

/* ---------- hero ---------- */
.vlt-hero {
  position: relative;
  overflow: hidden;
  padding-top: 80px;
  padding-bottom: 140px;
  isolation: isolate;
}
.vlt-hero__grad {
  position: absolute; inset: 0;
  background:
    radial-gradient(900px 600px at 75% 10%, rgba(80,120,200,.16), transparent 60%),
    radial-gradient(800px 700px at 15% 90%, rgba(120,90,200,.08), transparent 70%),
    linear-gradient(to bottom, transparent, var(--ink) 90%);
  pointer-events: none;
  z-index: -1;
}
.vlt-hero canvas { z-index: -2; }
.vlt-hero__inner {
  position: relative;
  padding-top: 60px;
  padding-bottom: 40px;
  max-width: 1080px;
}
.vlt-eyebrow {
  display:inline-flex; align-items:center; gap:10px;
  font-family: var(--mono); font-size: 11px; letter-spacing: .18em;
  color: var(--fg-dim);
  padding: 8px 14px;
  border:1px solid var(--line-2);
  border-radius: 999px;
  background: rgba(255,255,255,.02);
}
.vlt-eyebrow__pip {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
  animation: vltPulse 1.8s ease-in-out infinite;
}
@keyframes vltPulse {
  0%,100% { opacity: .55; }
  50% { opacity: 1; }
}

.vlt-hero__title {
  margin: 32px 0 0;
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(48px, 7.4vw, 104px);
  line-height: .98;
  letter-spacing: -.025em;
  color: var(--fg);
}
.vlt-hero__sub {
  margin: 32px 0 0;
  max-width: 560px;
  font-size: 19px;
  line-height: 1.55;
  color: var(--fg-dim);
}
.vlt-hero__ctas {
  margin-top: 40px;
  display:flex; flex-wrap: wrap; gap: 12px;
}
.vlt-hero__meta {
  margin-top: 80px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
}
.vlt-meta__cell {
  padding: 24px 0;
  display:flex; flex-direction: column; gap: 6px;
  border-right: 1px solid var(--line);
  padding-left: 20px;
}
.vlt-meta__cell:first-child { padding-left: 0; }
.vlt-meta__cell:last-child { border-right: 0; }
.vlt-meta__k {
  font-family: var(--mono); font-size: 10px; letter-spacing: .18em;
  color: var(--fg-mute);
}
.vlt-meta__v { font-size: 15px; color: var(--fg); }

@media (max-width: 720px) {
  .vlt-hero__meta { grid-template-columns: repeat(2, 1fr); }
  .vlt-meta__cell { padding-left: 16px; }
  .vlt-meta__cell:nth-child(odd) { padding-left: 0; }
  .vlt-meta__cell:nth-child(2) { border-right: 0; }
}

/* floating chat preview */
.vlt-chat {
  position: absolute;
  right: max(4vw, 32px);
  top: 200px;
  width: 320px;
  background: rgba(20,23,28,.86);
  border:1px solid var(--line-2);
  border-radius: 18px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 20px 60px rgba(0,0,0,.5), 0 0 0 1px rgba(120,160,240,.06) inset;
  font-size: 13px;
  transform: rotate(2.2deg);
  z-index: 2;
}
.vlt-chat__bar {
  display:flex; align-items:center; gap: 10px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  font-family: var(--mono); font-size: 11px;
  color: var(--fg-dim);
}
.vlt-chat__dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 10px var(--accent); }
.vlt-chat__title { flex: 1; color: var(--fg); }
.vlt-chat__time { color: var(--fg-mute); }
.vlt-chat__body {
  padding: 14px;
  display:flex; flex-direction: column; gap: 8px;
}
.vlt-msg {
  padding: 10px 12px;
  border-radius: 12px;
  max-width: 88%;
  line-height: 1.45;
}
.vlt-msg--out {
  align-self: flex-end;
  background: var(--accent);
  color: var(--ink);
  font-family: var(--mono); font-size: 12px;
}
.vlt-msg--in {
  align-self: flex-start;
  background: rgba(255,255,255,.04);
  color: var(--fg);
  border:1px solid var(--line);
}
.vlt-msg--in b { font-weight: 600; }
.vlt-msg--in .mono { font-family: var(--mono); font-size: 11px; color: var(--fg-dim); }
.vlt-msg--sm { font-size: 12px; color: var(--fg-dim); }

@media (max-width: 1180px) {
  .vlt-chat { display: none; }
}

/* ---------- trust strip ---------- */
.vlt-strip {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(255,255,255,.01);
}
.vlt-strip__inner {
  display:flex; align-items:center; gap: 20px;
  padding: 22px 32px;
  font-family: var(--mono); font-size: 12px; letter-spacing: .12em;
  color: var(--fg-dim);
  overflow-x: auto;
  white-space: nowrap;
  scrollbar-width: none;
}
.vlt-strip__inner::-webkit-scrollbar { display: none; }
.vlt-strip__label { color: var(--fg-mute); }
.vlt-strip__sep { width: 1px; height: 12px; background: var(--line-2); }
.vlt-strip__dot { width: 3px; height: 3px; border-radius: 50%; background: var(--fg-mute); flex-shrink: 0; }

/* ---------- sections ---------- */
.vlt-section {
  padding: 140px 0;
  position: relative;
}
.vlt-section--alt {
  background:
    linear-gradient(to bottom, transparent, rgba(255,255,255,.012) 30%, rgba(255,255,255,.012) 70%, transparent);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.vlt-sec-head {
  max-width: 720px;
  margin: 0 auto 80px;
  text-align: center;
}
.vlt-sec-head--left { margin-left: 0; text-align: left; }
.vlt-sec-num {
  display:inline-block;
  font-family: var(--mono); font-size: 11px; letter-spacing: .2em;
  color: var(--accent);
  margin-bottom: 24px;
}
.vlt-sec-title {
  margin: 0;
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(36px, 4.8vw, 64px);
  line-height: 1.02;
  letter-spacing: -.02em;
  color: var(--fg);
}
.vlt-sec-sub {
  margin: 24px auto 0;
  max-width: 560px;
  font-size: 17px;
  line-height: 1.55;
  color: var(--fg-dim);
}
.vlt-sec-head--left .vlt-sec-sub { margin-left: 0; }

/* ---------- steps ---------- */
.vlt-steps {
  list-style: none; margin: 0; padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
}
.vlt-step {
  padding: 40px 32px 40px 0;
  border-right: 1px solid var(--line);
  position: relative;
}
.vlt-step:last-child { border-right: 0; }
.vlt-step:nth-child(n+2) { padding-left: 32px; }
.vlt-step__num {
  font-family: var(--mono); font-size: 11px; letter-spacing: .2em;
  color: var(--accent);
  margin-bottom: 24px;
}
.vlt-step h3 {
  margin: 0 0 12px;
  font-family: var(--serif); font-weight: 400;
  font-size: 30px; line-height: 1.08; letter-spacing: -.01em;
}
.vlt-step p {
  margin: 0 0 20px;
  color: var(--fg-dim); font-size: 15px; line-height: 1.55;
}
.vlt-step__meta {
  font-family: var(--mono); font-size: 11px; letter-spacing: .12em;
  color: var(--fg-mute);
  padding-top: 16px; border-top: 1px solid var(--line);
  display:block;
}
@media (max-width: 980px) {
  .vlt-steps { grid-template-columns: repeat(2, 1fr); }
  .vlt-step:nth-child(2) { border-right: 0; }
  .vlt-step:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
}
@media (max-width: 600px) {
  .vlt-steps { grid-template-columns: 1fr; }
  .vlt-step { border-right: 0 !important; border-bottom: 1px solid var(--line); padding-left: 0 !important; }
}

/* ---------- assistants grid ---------- */
.vlt-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
}
.vlt-card {
  background: var(--ink-2);
  padding: 40px 32px 36px;
  transition: background .3s ease;
  position: relative;
}
.vlt-card:hover { background: var(--ink-3); }
.vlt-card__head {
  display:flex; justify-content: space-between; align-items: center;
  margin-bottom: 28px;
  font-family: var(--mono); font-size: 11px; letter-spacing: .16em;
}
.vlt-card__tag { color: var(--accent); }
.vlt-card__ar { color: var(--fg-mute); font-family: var(--serif); font-style: italic; letter-spacing: 0; font-size: 16px; }
.vlt-card h3 {
  margin: 0 0 14px;
  font-family: var(--serif); font-weight: 400;
  font-size: 36px; line-height: 1; letter-spacing: -.01em;
}
.vlt-card p {
  margin: 0 0 28px;
  font-size: 15px; line-height: 1.55;
  color: var(--fg-dim);
}
.vlt-card__cmds {
  list-style: none; margin: 0; padding: 16px 0 0;
  border-top: 1px solid var(--line);
  display:flex; flex-wrap: wrap; gap: 6px;
}
.vlt-card__cmds code {
  font-family: var(--mono); font-size: 11px;
  padding: 4px 8px;
  background: rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius: 4px;
  color: var(--fg);
}
.vlt-card--custom { background: linear-gradient(135deg, rgba(80,120,200,.06), rgba(120,90,200,.03)); }

@media (max-width: 980px) { .vlt-grid { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 600px) { .vlt-grid { grid-template-columns: 1fr; } }

/* ---------- use cases ---------- */
.vlt-cases {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.vlt-case {
  padding: 36px 32px;
  border:1px solid var(--line);
  border-radius: 6px;
  background: rgba(255,255,255,.012);
  display:flex; flex-direction: column;
}
.vlt-case__kicker {
  font-family: var(--mono); font-size: 10px; letter-spacing: .2em;
  color: var(--accent); margin-bottom: 24px;
}
.vlt-case__quote {
  margin: 0 0 32px;
  font-family: var(--serif); font-style: italic;
  font-size: 22px; line-height: 1.35; letter-spacing: -.005em;
  color: var(--fg); flex: 1;
}
.vlt-case__quote code {
  font-family: var(--mono); font-style: normal;
  font-size: 16px;
  padding: 2px 7px; background: rgba(255,255,255,.06);
  border:1px solid var(--line); border-radius: 4px;
}
.vlt-case__by { display:flex; align-items:center; gap: 12px; padding-top: 20px; border-top: 1px solid var(--line); }
.vlt-case__avatar {
  width: 36px; height: 36px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), oklch(0.6 0.18 280));
  color: var(--ink); display:grid; place-items: center;
  font-family: var(--serif); font-style: italic; font-size: 17px;
}
.vlt-case__name { font-size: 14px; font-weight: 500; }
.vlt-case__role { font-family: var(--mono); font-size: 11px; color: var(--fg-mute); letter-spacing: .08em; margin-top: 2px; }

@media (max-width: 900px) { .vlt-cases { grid-template-columns: 1fr; } }

/* ---------- pricing ---------- */
.vlt-pricing {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.vlt-plan {
  position: relative;
  background: var(--ink-2);
  border:1px solid var(--line);
  border-radius: 8px;
  padding: 36px 32px;
  display:flex; flex-direction: column;
}
.vlt-plan--featured {
  background: linear-gradient(180deg, rgba(80,120,200,.08), var(--ink-2));
  border-color: var(--accent-soft);
  box-shadow: 0 0 0 1px var(--accent-soft), 0 24px 60px rgba(80,120,200,.12);
}
.vlt-plan__badge {
  position:absolute; top: -10px; left: 50%; transform: translateX(-50%);
  background: var(--accent); color: var(--ink);
  font-family: var(--mono); font-size: 10px; letter-spacing: .18em;
  padding: 5px 12px; border-radius: 999px;
}
.vlt-plan__head {
  display:flex; align-items: baseline; justify-content: space-between;
  margin-bottom: 24px;
}
.vlt-plan__head h3 {
  margin: 0; font-family: var(--serif); font-weight: 400;
  font-size: 32px; line-height: 1;
}
.vlt-plan__ar {
  font-family: var(--serif); font-style: italic;
  font-size: 18px; color: var(--fg-mute);
}
.vlt-plan__price {
  display:flex; align-items: baseline; gap: 6px;
  margin-bottom: 16px;
}
.vlt-plan__price .cur { font-family: var(--mono); font-size: 12px; color: var(--fg-mute); letter-spacing: .12em; }
.vlt-plan__price .num { font-family: var(--serif); font-size: 56px; line-height: 1; letter-spacing: -.02em; }
.vlt-plan__price .per { font-family: var(--mono); font-size: 12px; color: var(--fg-mute); }
.vlt-plan__desc { margin: 0 0 24px; color: var(--fg-dim); font-size: 14px; line-height: 1.55; }
.vlt-plan__feat { list-style: none; margin: 0 0 28px; padding: 24px 0 0; border-top: 1px solid var(--line); flex: 1; }
.vlt-plan__feat li {
  display:flex; align-items:center; gap: 10px;
  padding: 8px 0;
  font-size: 14px;
  color: var(--fg);
}
.vlt-plan__feat li::before {
  content: ''; width: 14px; height: 1px; background: var(--accent);
  flex-shrink: 0;
}

.vlt-pricing__foot {
  margin-top: 32px;
  display:flex; flex-wrap: wrap; justify-content: center; gap: 24px;
  font-family: var(--mono); font-size: 12px; letter-spacing: .1em;
  color: var(--fg-dim);
}

@media (max-width: 900px) { .vlt-pricing { grid-template-columns: 1fr; } }

/* ---------- faq ---------- */
.vlt-faq__wrap {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 80px;
  align-items: start;
}
.vlt-faq { display:flex; flex-direction: column; border-top: 1px solid var(--line); }
.vlt-faq details {
  border-bottom: 1px solid var(--line);
  padding: 4px 0;
}
.vlt-faq summary {
  list-style: none;
  cursor: pointer;
  padding: 24px 8px 24px 0;
  display:flex; align-items:center; justify-content: space-between;
  font-family: var(--serif); font-weight: 400;
  font-size: 24px; letter-spacing: -.005em;
  color: var(--fg);
  transition: color .2s;
}
.vlt-faq summary::-webkit-details-marker { display: none; }
.vlt-faq summary:hover { color: var(--accent); }
.vlt-faq__plus {
  font-family: var(--mono); font-size: 22px; font-weight: 300;
  color: var(--fg-mute);
  transition: transform .3s ease;
  margin-left: 24px;
}
.vlt-faq details[open] .vlt-faq__plus { transform: rotate(45deg); color: var(--accent); }
.vlt-faq details p {
  margin: 0 64px 24px 0;
  color: var(--fg-dim);
  font-size: 16px; line-height: 1.6;
}
@media (max-width: 900px) {
  .vlt-faq__wrap { grid-template-columns: 1fr; gap: 40px; }
}

/* ---------- final cta ---------- */
.vlt-cta {
  position: relative;
  overflow: hidden;
  padding: 160px 0;
  border-top: 1px solid var(--line);
  isolation: isolate;
}
.vlt-cta::before {
  content:''; position:absolute; inset: 0;
  background: radial-gradient(900px 500px at 50% 50%, rgba(80,120,200,.12), transparent 70%);
  z-index: -1;
}
.vlt-cta canvas { z-index: -2; opacity: .6; }
.vlt-cta__inner { text-align: center; max-width: 720px; }
.vlt-cta__title {
  margin: 0;
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(56px, 8vw, 112px);
  line-height: .98;
  letter-spacing: -.025em;
}
.vlt-cta__sub { margin: 24px auto 40px; font-size: 19px; color: var(--fg-dim); }
.vlt-cta__btns { display: inline-flex; flex-wrap: wrap; justify-content: center; gap: 12px; }

/* ---------- footer ---------- */
.vlt-foot {
  background: var(--ink);
  border-top: 1px solid var(--line);
  padding: 80px 0 32px;
}
.vlt-foot__inner {
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: 60px;
}
.vlt-foot__brand p { margin: 16px 0 0; color: var(--fg-mute); font-size: 14px; }
.vlt-foot__cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}
.vlt-foot__cols h4 {
  margin: 0 0 20px;
  font-family: var(--mono); font-size: 11px; letter-spacing: .18em;
  color: var(--fg-mute); font-weight: 400; text-transform: uppercase;
}
.vlt-foot__cols a, .vlt-foot__cols span {
  display:block;
  font-size: 14px; color: var(--fg-dim);
  margin-bottom: 12px;
  text-decoration: none;
  transition: color .2s;
}
.vlt-foot__cols a:hover { color: var(--fg); }
.vlt-foot__base {
  grid-column: 1 / -1;
  margin-top: 60px; padding-top: 24px;
  border-top: 1px solid var(--line);
  display:flex; justify-content: space-between;
  font-family: var(--mono); font-size: 11px; letter-spacing: .12em;
  color: var(--fg-mute);
}
@media (max-width: 800px) {
  .vlt-foot__inner { grid-template-columns: 1fr; gap: 40px; }
  .vlt-foot__cols { grid-template-columns: repeat(2, 1fr); }
  .vlt-foot__base { flex-direction: column; gap: 8px; }
}