/* ===== BLACKSPRUT — MONOCHROME UI ===== */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --black:   #050505;
  --ink:     #0a0a0a;
  --coal:    #141414;
  --ash:     #1e1e1e;
  --smoke:   #2a2a2a;
  --stone:   #3a3a3a;
  --steel:   #666;
  --silver:  #999;
  --fog:     #bbb;
  --cloud:   #ddd;
  --snow:    #f0f0f0;
  --white:   #fff;

  --font:    'Space Grotesk', system-ui, sans-serif;
  --mono:    'JetBrains Mono', monospace;

  --ease: cubic-bezier(.4, 0, .2, 1);
  --speed: .3s;
  --radius: 12px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font);
  background: var(--black);
  color: var(--cloud);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--fog); text-decoration: none; transition: color var(--speed) var(--ease); }
a:hover { color: var(--white); }
img, svg { display: block; max-width: 100%; height: auto; }

.wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===================== HEADER ===================== */
.hdr {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  height: 56px;
  background: rgba(5,5,5,.85);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--smoke);
}
.hdr__inner {
  max-width: 1100px; margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
  height: 100%;
}
.hdr__logo {
  font-weight: 700; font-size: 1.1rem; color: var(--white);
  display: flex; align-items: center; gap: 8px; letter-spacing: -.02em;
}
.hdr__logo svg { width: 28px; height: 28px; }

.hdr__nav { display: flex; gap: 32px; list-style: none; }
.hdr__nav a {
  font-size: .8rem; font-weight: 500; color: var(--silver);
  text-transform: uppercase; letter-spacing: .08em;
  transition: color var(--speed);
}
.hdr__nav a:hover { color: var(--white); }

.hdr__burger {
  display: none; background: none; border: none; color: var(--white);
  cursor: pointer; padding: 4px;
}

/* ===================== SPINE NAV ===================== */
.spine {
  position: fixed; left: 24px; top: 50%; translate: 0 -50%;
  z-index: 150; display: flex; flex-direction: column; gap: 16px;
}
.spine a {
  width: 10px; height: 10px; border-radius: 50%;
  border: 1.5px solid var(--stone); background: transparent;
  transition: background var(--speed), border-color var(--speed);
  position: relative;
}
.spine a.active,
.spine a:hover {
  background: var(--white); border-color: var(--white);
}
.spine a span {
  position: absolute; left: 22px; top: 50%; translate: 0 -50%;
  font-size: .65rem; color: var(--silver); white-space: nowrap;
  opacity: 0; transition: opacity var(--speed);
  pointer-events: none; text-transform: uppercase; letter-spacing: .06em;
}
.spine a:hover span { opacity: 1; }

/* ===================== HERO ===================== */
.hero {
  min-height: 100vh;
  display: flex; align-items: center;
  padding: 120px 0 80px;
  position: relative; overflow: hidden;
}
.hero__grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px;
  align-items: center;
}
.hero__tag {
  display: inline-block;
  font-family: var(--mono); font-size: .7rem; font-weight: 500;
  color: var(--silver); text-transform: uppercase; letter-spacing: .14em;
  border: 1px solid var(--smoke); border-radius: 100px;
  padding: 6px 16px; margin-bottom: 24px;
}
.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem); font-weight: 700;
  line-height: 1.1; letter-spacing: -.04em; color: var(--white);
  margin-bottom: 20px;
}
.hero h1 em {
  font-style: normal;
  background: linear-gradient(135deg, var(--white) 30%, var(--steel));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero__desc {
  font-size: 1.05rem; color: var(--silver); max-width: 480px;
  margin-bottom: 32px;
}
.hero__pills { display: flex; flex-wrap: wrap; gap: 8px; }
.pill {
  font-family: var(--mono); font-size: .72rem;
  padding: 6px 14px; border-radius: 6px;
  background: var(--coal); border: 1px solid var(--smoke);
  color: var(--fog); transition: border-color var(--speed);
}
.pill:hover { border-color: var(--steel); }

.hero__visual {
  display: flex; align-items: center; justify-content: center;
}

/* ===================== SECTIONS ===================== */
.sec {
  padding: 100px 0;
  border-top: 1px solid var(--ash);
}
.sec--dark { background: var(--ink); }

.sec__eyebrow {
  font-family: var(--mono); font-size: .65rem; font-weight: 500;
  color: var(--steel); text-transform: uppercase; letter-spacing: .14em;
  margin-bottom: 12px;
}
.sec__title {
  font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 700;
  color: var(--white); letter-spacing: -.03em;
  line-height: 1.15; margin-bottom: 16px;
}
.sec__lead {
  color: var(--silver); max-width: 560px; margin-bottom: 56px;
}

/* ===================== ABOUT — split + border ===================== */
.about__grid {
  display: grid; grid-template-columns: 4px 1fr 1fr; gap: 0 48px;
}
.about__line {
  background: linear-gradient(180deg, var(--white) 0%, var(--stone) 100%);
  border-radius: 2px;
}
.about__text { padding-right: 24px; }
.about__text p { margin-bottom: 16px; color: var(--silver); font-size: .95rem; }
.about__visual {
  display: flex; align-items: center; justify-content: center;
  background: var(--coal); border: 1px solid var(--ash);
  border-radius: var(--radius); padding: 32px;
}

/* ===================== BENTO GRID ===================== */
.bento {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: auto auto;
  gap: 16px;
}
.bento__item {
  background: var(--coal); border: 1px solid var(--ash);
  border-radius: var(--radius); padding: 32px;
  transition: border-color var(--speed), translate var(--speed);
}
.bento__item:hover { border-color: var(--stone); translate: 0 -3px; }
.bento__item--wide { grid-column: span 2; }
.bento__item--tall { grid-row: span 2; display: flex; flex-direction: column; justify-content: center; }

.bento__icon {
  width: 40px; height: 40px; margin-bottom: 20px;
  color: var(--fog);
}
.bento__item h3 { font-size: 1.05rem; font-weight: 600; color: var(--white); margin-bottom: 8px; }
.bento__item p { font-size: .88rem; color: var(--silver); line-height: 1.65; }

/* ===================== TIMELINE / STEPS ===================== */
.timeline {
  display: flex; gap: 0; position: relative;
  padding-top: 48px;
}
.timeline::before {
  content: ''; position: absolute; top: 18px; left: 0; right: 0;
  height: 1px; background: var(--smoke);
}
.timeline__step {
  flex: 1; position: relative; padding: 0 20px;
}
.timeline__dot {
  width: 14px; height: 14px; border-radius: 50%;
  border: 2px solid var(--stone); background: var(--black);
  position: absolute; top: -38px; left: 20px;
  transition: background var(--speed), border-color var(--speed);
}
.timeline__step:hover .timeline__dot {
  background: var(--white); border-color: var(--white);
}
.timeline__num {
  font-family: var(--mono); font-size: .65rem;
  color: var(--steel); margin-bottom: 8px; letter-spacing: .06em;
}
.timeline__step h4 { font-size: .95rem; font-weight: 600; color: var(--white); margin-bottom: 6px; }
.timeline__step p { font-size: .85rem; color: var(--silver); }

/* ===================== CHECKLIST (comparison) ===================== */
.checklist {
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px;
}
.checklist__col h3 {
  font-size: 1.1rem; font-weight: 600; color: var(--white);
  margin-bottom: 24px; padding-bottom: 12px;
  border-bottom: 1px solid var(--smoke);
}
.checklist__row {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 12px 0; border-bottom: 1px solid var(--ash);
}
.checklist__mark {
  flex-shrink: 0; width: 20px; height: 20px; margin-top: 2px;
}
.checklist__mark--yes { color: var(--white); }
.checklist__mark--no { color: var(--stone); }
.checklist__label { font-size: .88rem; color: var(--silver); }
.checklist__label strong { color: var(--cloud); font-weight: 500; }

/* ===================== STATS BAR ===================== */
.stats-bar {
  display: grid; grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--ash); border-radius: var(--radius);
  overflow: hidden;
}
.stats-bar__item {
  padding: 28px 24px; text-align: center;
  border-right: 1px solid var(--ash);
  transition: background var(--speed);
}
.stats-bar__item:last-child { border-right: none; }
.stats-bar__item:hover { background: var(--coal); }
.stats-bar__num {
  font-size: 2rem; font-weight: 700; color: var(--white);
  line-height: 1; margin-bottom: 6px;
  font-family: var(--mono);
}
.stats-bar__label { font-size: .75rem; color: var(--steel); text-transform: uppercase; letter-spacing: .08em; }

/* ===================== FAQ — native details ===================== */
.faq-grid {
  display: grid; grid-template-columns: 280px 1fr; gap: 48px;
  align-items: start;
}
.faq__aside { position: sticky; top: 80px; }

.faq__list { display: grid; gap: 8px; }
.faq__item {
  border: 1px solid var(--ash); border-radius: var(--radius);
  overflow: hidden; transition: border-color var(--speed);
}
.faq__item[open] { border-color: var(--stone); }
.faq__item summary {
  padding: 18px 24px; font-size: .92rem; font-weight: 600;
  color: var(--cloud); cursor: pointer; list-style: none;
  display: flex; justify-content: space-between; align-items: center;
  transition: background var(--speed);
}
.faq__item summary:hover { background: var(--coal); }
.faq__item summary::after {
  content: '+'; font-size: 1.2rem; color: var(--steel);
  transition: transform var(--speed);
}
.faq__item[open] summary::after { content: '−'; }
.faq__item summary::-webkit-details-marker { display: none; }
.faq__body {
  padding: 0 24px 20px; font-size: .88rem;
  color: var(--silver); line-height: 1.7;
}

/* ===================== COMPANY ===================== */
.company-strip {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px;
  background: var(--ash); border-radius: var(--radius); overflow: hidden;
}
.company-strip__card { background: var(--coal); padding: 28px 24px; }
.company-strip__card h3 {
  font-family: var(--mono); font-size: .7rem; font-weight: 500;
  color: var(--steel); text-transform: uppercase; letter-spacing: .1em;
  margin-bottom: 16px;
}
.company-strip__card dl { display: grid; gap: 10px; }
.company-strip__card dt {
  font-size: .72rem; color: var(--stone);
  text-transform: uppercase; letter-spacing: .06em;
}
.company-strip__card dd { font-size: .88rem; color: var(--silver); margin: 0; }

/* ===================== FOOTER ===================== */
.ftr { border-top: 1px solid var(--ash); padding: 48px 0 32px; }
.ftr__grid {
  display: grid; grid-template-columns: 1fr auto auto; gap: 48px;
  align-items: start;
}
.ftr__brand { color: var(--steel); font-size: .85rem; max-width: 320px; }
.ftr__brand strong { color: var(--white); font-weight: 600; display: block; margin-bottom: 8px; }
.ftr__col h5 {
  font-family: var(--mono); font-size: .65rem; font-weight: 500;
  color: var(--stone); text-transform: uppercase; letter-spacing: .12em;
  margin-bottom: 12px;
}
.ftr__col ul { list-style: none; display: grid; gap: 6px; }
.ftr__col a { font-size: .85rem; color: var(--steel); }
.ftr__col a:hover { color: var(--cloud); }
.ftr__bottom {
  margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--ash);
  font-size: .75rem; color: var(--stone); text-align: center;
}

/* ===================== REVEAL ===================== */
.reveal { opacity: 0; translate: 0 24px; transition: opacity .6s var(--ease), translate .6s var(--ease); }
.reveal.visible { opacity: 1; translate: 0 0; }

/* ===================== RESPONSIVE ===================== */
@media (max-width: 900px) {
  .hero__grid { grid-template-columns: 1fr; gap: 40px; }
  .hero__visual { display: none; }
  .about__grid { grid-template-columns: 4px 1fr; }
  .about__visual { display: none; }
  .bento { grid-template-columns: 1fr; }
  .bento__item--wide { grid-column: span 1; }
  .bento__item--tall { grid-row: span 1; }
  .timeline { flex-direction: column; gap: 32px; padding-top: 0; }
  .timeline::before { display: none; }
  .timeline__dot { display: none; }
  .checklist { grid-template-columns: 1fr; }
  .stats-bar { grid-template-columns: repeat(2,1fr); }
  .stats-bar__item:nth-child(2) { border-right: none; }
  .faq-grid { grid-template-columns: 1fr; }
  .faq__aside { display: none; }
  .company-strip { grid-template-columns: 1fr; }
  .ftr__grid { grid-template-columns: 1fr; gap: 32px; }
  .spine { display: none; }
}

@media (max-width: 640px) {
  .hdr__nav { display: none; }
  .hdr__burger { display: block; }
  .hdr__nav.open {
    display: flex; flex-direction: column;
    position: absolute; top: 56px; left: 0; right: 0;
    background: var(--ink); padding: 20px 24px; gap: 16px;
    border-bottom: 1px solid var(--smoke);
  }
  .hero { padding: 80px 0 50px; min-height: auto; }
  .sec { padding: 60px 0; }
  .stats-bar { grid-template-columns: 1fr 1fr; }
}