/* =====================================================
 * stack.css — Technology stack deep-dive page
 * Reuses landing-v2.css tokens and brand assets.
 * ===================================================== */

.tech-body {
  background: var(--color-platinum-white);
  color: var(--color-midnight-ink);
  --tech-container-max: 1360px;
  --tech-page-pad: clamp(28px, 6vw, 88px);
  --tech-section-y: clamp(112px, 11vw, 164px);
}

.tech-main {
  overflow: hidden;
  background:
    linear-gradient(180deg, rgb(246 249 252 / 0.88) 0%, rgb(255 255 255 / 1) 360px),
    var(--color-platinum-white);
}

.tech-hero {
  position: relative;
  padding: clamp(112px, 12vw, 172px) var(--tech-page-pad) 104px;
  isolation: isolate;
}

.tech-hero::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 520px;
  z-index: -1;
  background:
    radial-gradient(circle at 14% 18%, rgb(99 91 255 / 0.12), transparent 30%),
    radial-gradient(circle at 83% 8%, rgb(80 213 255 / 0.13), transparent 28%),
    linear-gradient(180deg, rgb(246 249 252 / 0.88), rgb(255 255 255 / 0));
}

.tech-hero-inner {
  width: min(100%, var(--tech-container-max));
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(380px, 0.76fr);
  gap: clamp(64px, 9vw, 140px);
  align-items: center;
}

.tech-hero-copy {
  min-width: 0;
}

.tech-hero .lp2-eyebrow {
  justify-content: flex-start;
}

.tech-hero h1 {
  margin: var(--sp-20) 0 0;
  max-width: 840px;
  font-size: clamp(42px, 6vw, 72px);
  line-height: 1.02;
  letter-spacing: -0.035em;
  font-weight: 700;
  color: var(--color-midnight-ink);
}

.tech-hero-lede {
  margin: var(--sp-24) 0 0;
  max-width: 690px;
  font-size: clamp(18px, 1.6vw, 21px);
  line-height: 1.58;
  color: var(--color-slate-blue);
}

.tech-hero-actions,
.tech-close-actions {
  margin-top: var(--sp-32);
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.tech-runtime {
  position: relative;
  padding: var(--sp-40);
  background: rgb(255 255 255 / 0.84);
  border: 1px solid rgb(10 37 64 / 0.08);
  border-radius: 22px;
  box-shadow: 0 24px 80px rgb(10 37 64 / 0.10);
  overflow: hidden;
}

.tech-runtime::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgb(99 91 255 / 0.08), transparent 28%),
    linear-gradient(315deg, rgb(80 213 255 / 0.08), transparent 32%);
  pointer-events: none;
}

.tech-runtime-label {
  position: relative;
  margin: 0 0 var(--sp-20);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.2;
  font-weight: var(--weight-semibold);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-deep-violet);
}

.tech-runtime ol {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--sp-16);
}

.tech-runtime li {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  padding: var(--sp-20);
  background: rgb(255 255 255 / 0.76);
  border: 1px solid rgb(10 37 64 / 0.06);
  border-radius: 14px;
}

.tech-runtime li > span {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: var(--weight-semibold);
  color: var(--color-deep-violet);
  background: rgb(99 91 255 / 0.08);
  border: 1px solid rgb(99 91 255 / 0.16);
  border-radius: 8px;
}

.tech-runtime strong {
  display: block;
  font-size: 15px;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--color-midnight-ink);
}

.tech-runtime p {
  margin: var(--sp-4) 0 0;
  font-size: 13px;
  line-height: 1.48;
  color: var(--color-slate-blue);
}

.tech-overview {
  padding: var(--sp-96) var(--tech-page-pad) var(--tech-section-y);
}

.tech-section-head {
  width: min(100%, 760px);
  margin: 0 auto var(--sp-64);
  text-align: center;
}

.tech-section-head h2 {
  margin: 0;
  font-size: clamp(32px, 4vw, 48px);
  line-height: 1.08;
  letter-spacing: -0.025em;
  font-weight: 700;
}

.tech-section-head p:not(.lp2-kicker) {
  margin: var(--sp-16) auto 0;
  max-width: 650px;
  font-size: var(--text-subheading);
  line-height: 1.58;
  color: var(--color-slate-blue);
}

.tech-map {
  width: min(100%, var(--tech-container-max));
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--sp-28);
}

.tech-map-card {
  position: relative;
  min-height: 340px;
  padding: var(--sp-32);
  display: grid;
  grid-template-rows: 148px 18px minmax(54px, auto) minmax(64px, auto);
  align-content: end;
  row-gap: 10px;
  color: var(--color-midnight-ink);
  overflow: hidden;
  background: white;
  border: 1px solid rgb(10 37 64 / 0.08);
  border-radius: 22px;
  box-shadow: 0 18px 60px rgb(10 37 64 / 0.06);
}

.tech-map-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 58%;
  object-fit: cover;
  object-position: center top;
  opacity: 0.9;
  transform: scale(1.01);
  transition: transform 360ms ease;
}

.tech-map-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgb(255 255 255 / 0.04) 0%, rgb(255 255 255 / 0.84) 50%, white 72%);
}

.tech-map-card:hover img {
  transform: scale(1.05);
}

.tech-map-card > *:not(img) {
  position: relative;
  z-index: 1;
}

.tech-map-card span {
  grid-row: 2;
  width: fit-content;
  align-self: end;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1;
  font-weight: var(--weight-semibold);
  color: var(--color-deep-violet);
}

.tech-map-card h3 {
  grid-row: 3;
  margin: 0;
  align-self: start;
  font-size: clamp(18px, 1.45vw, 22px);
  line-height: 1.08;
  letter-spacing: -0.018em;
  font-weight: 700;
}

.tech-map-card p {
  grid-row: 4;
  margin: 0;
  align-self: start;
  font-size: 14px;
  line-height: 1.5;
  color: var(--color-slate-blue);
}

.tech-primitives {
  padding: var(--tech-section-y) var(--tech-page-pad);
  background:
    linear-gradient(180deg, rgb(246 249 252 / 0.72), rgb(255 255 255 / 1));
  border-top: 1px solid rgb(10 37 64 / 0.06);
}

.tech-primitive-grid {
  width: min(100%, var(--tech-container-max));
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: var(--sp-20);
}

.tech-primitive-grid article {
  min-height: 320px;
  padding: var(--sp-28);
  display: grid;
  grid-template-rows: 54px 18px 84px minmax(84px, 1fr);
  align-content: stretch;
  row-gap: 14px;
  background:
    radial-gradient(circle at 88% 12%, rgb(99 91 255 / 0.10), transparent 42%),
    white;
  border: 1px solid rgb(10 37 64 / 0.07);
  border-radius: 20px;
  box-shadow: 0 16px 48px rgb(10 37 64 / 0.045);
}

.tech-primitive-icon {
  grid-row: 1;
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  align-self: start;
  border-radius: 16px;
  background:
    linear-gradient(135deg, rgb(255 255 255 / 0.92), rgb(246 249 252 / 0.72)),
    radial-gradient(circle at 72% 24%, rgb(80 213 255 / 0.22), transparent 38%);
  border: 1px solid rgb(99 91 255 / 0.14);
  box-shadow: 0 14px 32px rgb(10 37 64 / 0.075);
}

.tech-primitive-icon::before,
.tech-primitive-icon::after {
  content: "";
  display: block;
  grid-area: 1 / 1;
}

.tech-icon-markdown::before {
  width: 30px;
  height: 24px;
  border: 2px solid var(--color-deep-violet);
  border-radius: 5px;
}

.tech-icon-markdown::after {
  width: 18px;
  height: 12px;
  border-left: 3px solid var(--color-deep-violet);
  border-bottom: 3px solid var(--color-deep-violet);
  transform: rotate(-45deg) translate(2px, -1px);
}

.tech-icon-sqlite::before {
  width: 30px;
  height: 32px;
  border: 2px solid var(--color-deep-violet);
  border-radius: 50% / 14%;
}

.tech-icon-sqlite::after {
  width: 30px;
  height: 12px;
  border-top: 2px solid var(--color-mesh-cyan);
  border-bottom: 2px solid var(--color-mesh-cyan);
}

.tech-icon-packs::before {
  width: 30px;
  height: 30px;
  background:
    linear-gradient(var(--color-deep-violet), var(--color-deep-violet)) 0 0 / 13px 13px no-repeat,
    linear-gradient(var(--color-mesh-cyan), var(--color-mesh-cyan)) 17px 0 / 13px 13px no-repeat,
    linear-gradient(var(--color-mesh-violet), var(--color-mesh-violet)) 0 17px / 13px 13px no-repeat,
    linear-gradient(var(--color-mesh-mint), var(--color-mesh-mint)) 17px 17px / 13px 13px no-repeat;
  border-radius: 4px;
}

.tech-icon-mcp::before {
  width: 32px;
  height: 18px;
  border-top: 2px solid var(--color-deep-violet);
  border-bottom: 2px solid var(--color-deep-violet);
}

.tech-icon-mcp::after {
  width: 34px;
  height: 34px;
  background:
    radial-gradient(circle at 50% 6px, var(--color-deep-violet) 0 4px, transparent 5px),
    radial-gradient(circle at 6px 28px, var(--color-mesh-cyan) 0 4px, transparent 5px),
    radial-gradient(circle at 28px 28px, var(--color-mesh-violet) 0 4px, transparent 5px);
}

.tech-icon-runtime::before {
  width: 34px;
  height: 20px;
  border: 2px solid var(--color-deep-violet);
  border-radius: 999px;
}

.tech-icon-runtime::after {
  width: 14px;
  height: 14px;
  margin-left: 12px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-mesh-cyan), var(--color-deep-violet));
  box-shadow: -18px 0 0 rgb(99 91 255 / 0.13);
}

.tech-primitive-grid article > span:not(.tech-primitive-icon),
.tech-roadmap-steps span {
  width: fit-content;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1;
  font-weight: var(--weight-semibold);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-deep-violet);
}

.tech-primitive-grid article > span:not(.tech-primitive-icon) {
  grid-row: 2;
  display: inline-flex;
  align-items: center;
  min-height: 18px;
  align-self: start;
  white-space: nowrap;
}

.tech-primitive-grid h3,
.tech-roadmap-steps h3 {
  margin: 0;
  align-self: start;
  font-size: clamp(19px, 1.55vw, 24px);
  line-height: 1.12;
  letter-spacing: -0.018em;
  font-weight: 700;
  color: var(--color-midnight-ink);
}

.tech-primitive-grid h3 {
  grid-row: 3;
}

.tech-primitive-grid p,
.tech-roadmap-steps p {
  margin: 0;
  align-self: start;
  font-size: 14px;
  line-height: 1.58;
  color: var(--color-slate-blue);
}

.tech-primitive-grid p {
  grid-row: 4;
}

.tech-layer {
  padding: var(--tech-section-y) var(--tech-page-pad);
  border-top: 1px solid rgb(10 37 64 / 0.06);
}

.tech-layer-tint {
  background: var(--color-porcelain-white);
}

.tech-layer-inner {
  width: min(100%, var(--tech-container-max));
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(400px, 0.78fr);
  gap: clamp(72px, 10vw, 156px);
  align-items: center;
}

.tech-layer-inner-reverse .tech-layer-copy {
  order: 2;
}

.tech-layer-inner-reverse .tech-visual {
  order: 1;
}

.tech-layer-copy {
  min-width: 0;
}

.tech-layer-copy h2 {
  margin: 10px 0 var(--sp-20);
  max-width: 760px;
  font-size: clamp(32px, 4.2vw, 52px);
  line-height: 1.06;
  letter-spacing: -0.03em;
  font-weight: 700;
  color: var(--color-midnight-ink);
}

.tech-layer-copy > p:not(.lp2-kicker) {
  margin: 0;
  max-width: 760px;
  font-size: 17px;
  line-height: 1.68;
  color: var(--color-slate-blue);
}

.tech-definition-list {
  margin: var(--sp-48) 0 0;
  display: grid;
  gap: 0;
  border-top: 1px solid rgb(10 37 64 / 0.10);
}

.tech-definition-list div {
  display: grid;
  grid-template-columns: 144px minmax(0, 1fr);
  gap: var(--sp-32);
  padding: var(--sp-24) 0;
  border-bottom: 1px solid rgb(10 37 64 / 0.10);
}

.tech-definition-list dt {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.4;
  font-weight: var(--weight-semibold);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-deep-violet);
}

.tech-definition-list dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.58;
  color: var(--color-midnight-ink);
}

.tech-visual {
  position: relative;
  margin: 0;
  width: min(100%, 520px);
  justify-self: end;
}

.tech-layer-inner-reverse .tech-visual {
  justify-self: start;
}

.tech-visual img {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border: 1px solid rgb(10 37 64 / 0.08);
  border-radius: 24px;
  box-shadow: 0 22px 70px rgb(10 37 64 / 0.09);
}

.tech-visual figcaption {
  margin-top: 14px;
  padding-left: var(--sp-16);
  border-left: 2px solid rgb(99 91 255 / 0.32);
  font-size: 13px;
  line-height: 1.5;
  color: var(--color-slate-blue);
}

.tech-roadmap {
  padding: var(--tech-section-y) var(--tech-page-pad);
  background: var(--color-porcelain-white);
  border-top: 1px solid rgb(10 37 64 / 0.06);
}

.tech-roadmap-steps {
  width: min(100%, var(--tech-container-max));
  margin: 0 auto;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  background: white;
  border: 1px solid rgb(10 37 64 / 0.08);
  border-radius: 24px;
  box-shadow: 0 22px 70px rgb(10 37 64 / 0.07);
  overflow: hidden;
}

.tech-roadmap-steps li {
  position: relative;
  min-height: 320px;
  padding: var(--sp-32);
  display: grid;
  grid-template-rows: 18px 112px minmax(76px, 1fr);
  align-content: end;
  row-gap: 16px;
}

.tech-roadmap-steps li + li {
  border-left: 1px solid rgb(10 37 64 / 0.08);
}

.tech-roadmap-steps li::before {
  content: "";
  position: absolute;
  left: var(--sp-32);
  right: var(--sp-32);
  top: var(--sp-32);
  height: 2px;
  background: linear-gradient(90deg, var(--color-deep-violet), rgb(80 213 255 / 0.45));
}

.tech-roadmap-steps span {
  grid-row: 1;
  display: inline-flex;
  align-items: center;
  min-height: 18px;
  align-self: start;
}

.tech-roadmap-steps h3 {
  grid-row: 2;
}

.tech-roadmap-steps p {
  grid-row: 3;
}

.tech-close {
  padding: var(--tech-section-y) var(--tech-page-pad);
  background:
    radial-gradient(circle at 28% 20%, rgb(99 91 255 / 0.10), transparent 32%),
    radial-gradient(circle at 70% 35%, rgb(80 213 255 / 0.10), transparent 30%),
    var(--color-platinum-white);
  border-top: 1px solid rgb(10 37 64 / 0.06);
}

.tech-close-inner {
  width: min(100%, 860px);
  margin: 0 auto;
  text-align: center;
}

.tech-close h2 {
  margin: var(--sp-8) 0 0;
  font-size: clamp(34px, 4.8vw, 58px);
  line-height: 1.05;
  letter-spacing: -0.03em;
  font-weight: 700;
}

.tech-close p:not(.lp2-kicker) {
  margin: var(--sp-20) auto 0;
  max-width: 720px;
  font-size: 18px;
  line-height: 1.62;
  color: var(--color-slate-blue);
}

.tech-close-actions {
  justify-content: center;
}

@media (max-width: 1080px) {
  .tech-hero-inner,
  .tech-layer-inner {
    grid-template-columns: 1fr;
  }

  .tech-runtime,
  .tech-visual,
  .tech-layer-inner-reverse .tech-visual {
    justify-self: center;
  }

  .tech-layer-inner-reverse .tech-layer-copy,
  .tech-layer-inner-reverse .tech-visual {
    order: initial;
  }

  .tech-map {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .tech-primitive-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .tech-roadmap-steps {
    grid-template-columns: 1fr;
  }

  .tech-roadmap-steps li {
    border-left: 0;
  }

  .tech-roadmap-steps li + li {
    border-left: 0;
    border-top: 1px solid rgb(10 37 64 / 0.08);
  }

}

@media (max-width: 720px) {
  .tech-hero {
    padding: 88px var(--sp-20) 72px;
  }

  .tech-hero .lp2-eyebrow {
    justify-content: center;
  }

  .tech-hero-copy {
    text-align: center;
  }

  .tech-hero-actions {
    justify-content: center;
  }

  .tech-runtime {
    padding: var(--sp-20);
  }

  .tech-overview,
  .tech-primitives,
  .tech-layer,
  .tech-roadmap,
  .tech-close {
    padding-left: var(--sp-20);
    padding-right: var(--sp-20);
  }

  .tech-overview,
  .tech-primitives,
  .tech-layer,
  .tech-roadmap,
  .tech-close {
    padding-top: 88px;
    padding-bottom: 88px;
  }

  .tech-map {
    grid-template-columns: 1fr;
  }

  .tech-map-card {
    min-height: 300px;
    padding: var(--sp-28);
    grid-template-rows: 132px 18px minmax(30px, auto) minmax(44px, auto);
    border-left: 1px solid rgb(10 37 64 / 0.08);
  }

  .tech-primitive-grid,
  .tech-roadmap-steps {
    grid-template-columns: 1fr;
  }

  .tech-primitive-grid article {
    min-height: 280px;
    grid-template-rows: 54px 18px minmax(44px, auto) minmax(68px, auto);
  }

  .tech-definition-list div {
    grid-template-columns: 1fr;
    gap: var(--sp-8);
  }
}