/* ==========================================================================
   EnerBlue 官网 · 设计系统
   Dark engineering / blueprint direction
   ========================================================================== */

/* ---------- tokens ---------- */
:root {
  --bg: #101a26;
  --bg-soft: #14202d;
  --panel: #182635;
  --panel-2: #1d2c3d;
  --panel-3: #24384c;
  --line: rgba(255, 255, 255, 0.11);
  --line-2: rgba(255, 255, 255, 0.19);
  --text: #e9eff8;
  --text-2: #c3cfdf;
  --muted: #8d9eb4;
  --muted-2: #63768d;
  --blue: #1e6fd9;
  --blue-bright: #3b8cff;
  --blue-soft: #7fb2ff;
  --teal: #3fd8c8;
  --amber: #f0b357;
  --plate: #e4ecf6;
  --plate-2: #cbd8e8;

  --sans: "Inter", "HarmonyOS Sans SC", "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --mono: "IBM Plex Mono", "JetBrains Mono", "SFMono-Regular", Consolas,
    "Liberation Mono", ui-monospace, monospace;

  --wrap: 1240px;
  --pad: clamp(20px, 4vw, 48px);
  --sec-y: clamp(72px, 9vw, 132px);
  --r: 3px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
h1, h2, h3, h4 { margin: 0; font-weight: 600; line-height: 1.18; letter-spacing: -0.02em; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
table { border-collapse: collapse; width: 100%; }
::selection { background: rgba(59, 140, 255, 0.32); color: #fff; }

:focus-visible {
  outline: 2px solid var(--blue-bright);
  outline-offset: 3px;
}

/* ---------- layout ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--pad);
}

.section {
  padding-block: var(--sec-y);
  position: relative;
}

.section--tight { padding-block: clamp(48px, 6vw, 84px); }
.section--line { border-top: 1px solid var(--line); }

.grid { display: grid; gap: clamp(20px, 3vw, 36px); }
.g-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.g-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.g-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

/* blueprint background texture */
.bp {
  position: relative;
  isolation: isolate;
}
.bp::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 88px 88px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 30%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 30%, transparent 78%);
  pointer-events: none;
}

/* ---------- type helpers ---------- */
.mono {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted-2);
}

.label {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--blue-soft);
  margin-bottom: 22px;
}
.label::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--blue);
  flex: none;
}
.label .num { color: var(--muted-2); }

h2.h2 {
  font-size: clamp(1.85rem, 3.2vw, 2.9rem);
  letter-spacing: -0.025em;
  max-width: 20ch;
}
h2.h2 em { font-style: normal; color: var(--blue-soft); }

.lead {
  color: var(--muted);
  font-size: clamp(0.98rem, 1.1vw, 1.08rem);
  max-width: 62ch;
  margin-top: 20px;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: clamp(36px, 5vw, 60px);
  flex-wrap: wrap;
}

.note {
  font-family: var(--mono);
  font-size: 0.7rem;
  line-height: 1.7;
  color: var(--muted-2);
  letter-spacing: 0.02em;
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 22px;
  border-radius: var(--r);
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  border: 1px solid transparent;
  transition: background 0.25s var(--ease), border-color 0.25s, transform 0.25s, color 0.25s;
  white-space: nowrap;
}
.btn svg { width: 15px; height: 15px; flex: none; transition: transform 0.25s var(--ease); }
.btn:hover svg { transform: translateX(3px); }

.btn--primary {
  background: var(--blue);
  color: #fff;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.14) inset, 0 10px 30px -14px rgba(30, 111, 217, 0.9);
}
.btn--primary:hover { background: #2a7ce6; transform: translateY(-1px); }

.btn--ghost {
  border-color: var(--line-2);
  color: var(--text);
  background: rgba(255, 255, 255, 0.02);
}
.btn--ghost:hover { border-color: rgba(255, 255, 255, 0.34); background: rgba(255, 255, 255, 0.05); }

.btn--sm { padding: 10px 16px; font-size: 0.84rem; }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--text);
  border-bottom: 1px solid var(--line-2);
  padding-bottom: 3px;
  transition: border-color 0.2s, color 0.2s;
}
.link-arrow svg { width: 14px; height: 14px; transition: transform 0.25s var(--ease); }
.link-arrow:hover { color: var(--blue-soft); border-color: var(--blue); }
.link-arrow:hover svg { transform: translateX(3px); }

/* ---------- header ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 90;
  border-bottom: 1px solid transparent;
  transition: background 0.3s, border-color 0.3s, backdrop-filter 0.3s;
}
.site-header.is-stuck {
  background: rgba(16, 26, 38, 0.82);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--line);
}
.nav {
  display: flex;
  align-items: center;
  gap: 28px;
  height: 74px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  flex: none;
}
.brand img { width: 34px; height: auto; }
.brand .word {
  display: flex;
  flex-direction: column;
  line-height: 1;
}
.brand .word b {
  position: relative;
  font-size: 1.14rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: #fff;
}
.brand .word small {
  margin-top: 5px;
  font-family: var(--mono);
  font-size: 0.56rem;
  letter-spacing: 0.16em;
  color: var(--muted-2);
  text-transform: uppercase;
}
.ai-badge {
  display: inline-block;
  margin-left: 5px;
  padding: 1px 4px;
  border-radius: 2px;
  background: var(--blue);
  color: #fff;
  font-family: var(--mono);
  font-size: 0.56rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  vertical-align: 3px;
  line-height: 1.3;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
  margin-left: auto;
}
.nav-links a {
  position: relative;
  font-size: 0.88rem;
  color: var(--text-2);
  padding-block: 6px;
  transition: color 0.2s;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background: var(--blue-bright);
  transition: width 0.25s var(--ease);
}
.nav-links a:hover { color: #fff; }
.nav-links a:hover::after,
.nav-links a[aria-current="page"]::after { width: 100%; }
.nav-links a[aria-current="page"] { color: #fff; }

.nav-links .mobile-cta { display: none; }
.nav-cta { display: flex; align-items: center; gap: 12px; margin-left: 12px; }
.nav-cta .btn { padding: 10px 16px; font-size: 0.83rem; }

.burger {
  display: none;
  width: 40px;
  height: 40px;
  margin-left: auto;
  border: 1px solid var(--line-2);
  border-radius: var(--r);
  position: relative;
}
.burger span {
  position: absolute;
  left: 11px;
  width: 16px;
  height: 1.5px;
  background: var(--text);
  transition: transform 0.25s, opacity 0.2s;
}
.burger span:nth-child(1) { top: 15px; }
.burger span:nth-child(2) { top: 20px; }
.burger span:nth-child(3) { top: 25px; }
body.nav-open .burger span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
body.nav-open .burger span:nth-child(2) { opacity: 0; }
body.nav-open .burger span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

/* ---------- hero ---------- */
.hero {
  position: relative;
  padding-top: clamp(120px, 15vw, 168px);
  padding-bottom: clamp(48px, 6vw, 76px);
  overflow: hidden;
  background:
    radial-gradient(ellipse 60% 50% at 78% 8%, rgba(30, 111, 217, 0.22), transparent 62%),
    radial-gradient(ellipse 40% 40% at 8% 20%, rgba(63, 216, 200, 0.07), transparent 65%),
    var(--bg);
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image: url("../img/sol-hvac-towers.webp");
  background-size: cover;
  background-position: center 35%;
  opacity: 0.16;
  filter: grayscale(1) brightness(0.7) contrast(1.15);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.9), transparent 72%);
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.9), transparent 72%);
  pointer-events: none;
}
.hero > .wrap { position: relative; z-index: 1; }
.hero-grid > *,
.two-col > *,
.contact-grid > *,
.tier > *,
.footer-grid > * { min-width: 0; }

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  gap: clamp(32px, 4.4vw, 64px);
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 14px 6px 8px;
  background: rgba(255, 255, 255, 0.02);
  margin-bottom: 26px;
}
.eyebrow .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 0 4px rgba(63, 216, 200, 0.14);
  animation: pulse 2.8s infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 3px rgba(63, 216, 200, 0.16); }
  50% { box-shadow: 0 0 0 7px rgba(63, 216, 200, 0.04); }
}

.hero h1 {
  font-size: clamp(2.1rem, 3.5vw, 3.5rem);
  line-height: 1.12;
  letter-spacing: -0.035em;
  font-weight: 600;
}
.hero h1 em {
  font-style: normal;
  color: var(--blue-soft);
  position: relative;
}
.hero h1 em::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.06em;
  height: 0.34em;
  background: linear-gradient(90deg, rgba(59, 140, 255, 0.28), transparent);
  z-index: -1;
}
.hero-sub {
  margin-top: 24px;
  max-width: 52ch;
  color: var(--text-2);
  font-size: clamp(0.98rem, 1.15vw, 1.1rem);
  line-height: 1.85;
}
.hero-sub strong { color: #fff; font-weight: 600; }
.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 34px;
}
.hero-facts {
  display: flex;
  gap: 26px;
  flex-wrap: wrap;
  margin-top: 38px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}
.hero-facts div { min-width: 92px; }
.hero-facts b {
  display: block;
  font-family: var(--mono);
  font-size: 1.32rem;
  font-weight: 500;
  color: #fff;
  letter-spacing: -0.01em;
}
.hero-facts span {
  font-size: 0.74rem;
  color: var(--muted-2);
  letter-spacing: 0.04em;
}

/* ---------- system map (hero visual) ---------- */
.system-map {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 4px;
  background:
    linear-gradient(180deg, rgba(17, 26, 38, 0.9), rgba(10, 16, 24, 0.94));
  padding: 18px;
  box-shadow: 0 40px 80px -50px rgba(0, 0, 0, 0.9);
}
.system-map::before {
  content: "系统拓扑 / SYSTEM TOPOLOGY";
  position: absolute;
  top: -9px;
  left: 16px;
  padding-inline: 8px;
  background: var(--bg);
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.18em;
  color: var(--muted-2);
}
.sm-layer {
  position: relative;
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 14px;
  padding: 14px 14px 14px 10px;
  border: 1px solid var(--line);
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.018);
}
.sm-layer + .sm-layer { margin-top: 26px; }
.sm-layer .idx {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.24em;
  color: var(--muted-2);
  text-align: center;
  border-right: 1px solid var(--line);
  padding-right: 8px;
}
.sm-layer .body { min-width: 0; }
.sm-layer .tier {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}
.sm-layer .tier b {
  font-size: 0.98rem;
  letter-spacing: -0.01em;
}
.sm-layer .tier b span { color: var(--muted-2); font-weight: 400; font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.12em; }
.sm-layer .tier em {
  font-style: normal;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  color: var(--blue-soft);
  border: 1px solid rgba(59, 140, 255, 0.3);
  border-radius: 2px;
  padding: 1px 6px;
  white-space: nowrap;
}
.sm-nodes {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 10px;
}
.sm-node {
  font-size: 0.76rem;
  color: var(--text-2);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  border-radius: 2px;
  padding: 4px 9px;
}
.sm-node.hot { border-color: rgba(59, 140, 255, 0.36); color: #fff; background: rgba(30, 111, 217, 0.14); }

.flow {
  position: relative;
  height: 26px;
  margin-left: 56px;
  width: 2px;
  background: linear-gradient(to bottom, rgba(59, 140, 255, 0.1), rgba(59, 140, 255, 0.55), rgba(59, 140, 255, 0.1));
}
.flow::after {
  content: "";
  position: absolute;
  left: -2px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 10px 2px rgba(63, 216, 200, 0.6);
  animation: drop 2.4s linear infinite;
}
@keyframes drop {
  0% { top: -6px; opacity: 0; }
  15% { opacity: 1; }
  85% { opacity: 1; }
  100% { top: 24px; opacity: 0; }
}
.flow span {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--mono);
  font-size: 0.56rem;
  letter-spacing: 0.12em;
  color: var(--muted-2);
  white-space: nowrap;
}

/* ---------- stat strip ---------- */
.stats {
  border-block: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.022), transparent);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.stat {
  padding: 30px 26px 28px;
  border-left: 1px solid var(--line);
}
.stat:first-child { border-left: 0; padding-left: 0; }
.stat b {
  display: block;
  font-family: var(--mono);
  font-size: clamp(1.6rem, 2.4vw, 2.2rem);
  font-weight: 500;
  letter-spacing: -0.02em;
  color: #fff;
  line-height: 1.1;
}
.stat b small { font-size: 0.55em; color: var(--blue-soft); margin-left: 2px; }
.stat > span {
  display: block;
  margin-top: 8px;
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.5;
}
.stat b span { display: inline; }
.stat i {
  display: block;
  margin-top: 10px;
  font-style: normal;
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.12em;
  color: var(--muted-2);
  text-transform: uppercase;
}

/* ---------- product tiers ---------- */
.tier {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: clamp(20px, 3vw, 44px);
  padding-block: clamp(28px, 3.4vw, 44px);
  border-top: 1px solid var(--line);
  position: relative;
}
.tier:last-child { border-bottom: 1px solid var(--line); }
.tier::before {
  content: "";
  position: absolute;
  left: 0;
  top: -1px;
  width: 54px;
  height: 2px;
  background: var(--tier, var(--blue));
}
.tier-meta .k {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  color: var(--muted-2);
  text-transform: uppercase;
}
.tier-meta h3 {
  margin-top: 10px;
  font-size: 1.32rem;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.tier-meta h3 em {
  font-style: normal;
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  color: var(--muted-2);
}
.tier-meta p {
  margin-top: 12px;
  font-size: 0.84rem;
  color: var(--muted);
  line-height: 1.7;
}
.tier-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}
.pcard {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 3px;
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.012));
  padding: 22px 22px 20px;
  transition: border-color 0.3s, transform 0.3s var(--ease), background 0.3s;
  display: flex;
  flex-direction: column;
  min-height: 100%;
}
.pcard:hover {
  border-color: rgba(59, 140, 255, 0.42);
  background: linear-gradient(160deg, rgba(30, 111, 217, 0.1), rgba(255, 255, 255, 0.02));
  transform: translateY(-3px);
}
.pcard .name {
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex-wrap: wrap;
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.12em;
  color: var(--blue-soft);
  text-transform: uppercase;
}
.pcard .cn {
  margin-top: 9px;
  font-size: 1.06rem;
  font-weight: 600;
}
.pcard .desc {
  margin-top: 10px;
  font-size: 0.84rem;
  line-height: 1.7;
  color: var(--muted);
  flex: 1;
}
.pcard .spec {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
}
.pcard .spec span {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.06em;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 2px 6px;
}
.pcard.is-ghost { border-style: dashed; opacity: 0.66; }
.pcard.is-ghost:hover { transform: none; border-color: var(--line-2); background: transparent; }
.pcard > .plate {
  margin: -22px -22px 18px;
  border: 0;
  border-bottom: 1px solid var(--line);
  border-radius: 0;
}

/* foundation */
.foundation {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 3px;
  overflow: hidden;
  margin-top: 34px;
}
.foundation > div {
  background: var(--bg-soft);
  padding: 26px 26px 24px;
}
.foundation .k {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  color: var(--blue-soft);
}
.foundation .k svg { width: 16px; height: 16px; }
.foundation h4 { margin-top: 12px; font-size: 1.06rem; }
.foundation p { margin-top: 8px; font-size: 0.84rem; color: var(--muted); line-height: 1.7; }

/* ---------- method steps ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.step {
  background: var(--bg);
  padding: 26px 24px 24px;
  position: relative;
  transition: background 0.3s;
}
.step:hover { background: var(--panel); }
.step .n {
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.16em;
  color: var(--muted-2);
}
.step h4 { margin-top: 14px; font-size: 1.02rem; }
.step p { margin-top: 8px; font-size: 0.82rem; color: var(--muted); line-height: 1.65; }
.step::after {
  content: "";
  position: absolute;
  right: 16px;
  top: 16px;
  width: 5px;
  height: 5px;
  border-top: 1px solid var(--line-2);
  border-right: 1px solid var(--line-2);
}

/* ---------- case cards ---------- */
.case-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(18px, 2.4vw, 28px);
}
.case {
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
  background: var(--panel);
  display: flex;
  flex-direction: column;
  transition: border-color 0.3s, transform 0.35s var(--ease);
}
.case:hover { border-color: rgba(59, 140, 255, 0.4); transform: translateY(-3px); }
.case .media {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #0a121c;
}
.case .media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(0.55) contrast(1.05) brightness(0.78);
  transition: transform 0.7s var(--ease), filter 0.5s;
}
.case:hover .media img { transform: scale(1.04); filter: grayscale(0.25) contrast(1.05) brightness(0.88); }
.case .media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to top, rgba(16, 26, 38, 0.92), rgba(16, 26, 38, 0.05) 62%),
    linear-gradient(120deg, rgba(30, 111, 217, 0.22), transparent 55%);
  pointer-events: none;
}
.case .tag {
  position: absolute;
  z-index: 1;
  left: 16px;
  top: 14px;
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #dfe9f7;
  background: rgba(16, 26, 38, 0.66);
  border: 1px solid rgba(255, 255, 255, 0.16);
  backdrop-filter: blur(6px);
  border-radius: 2px;
  padding: 3px 8px;
}
.case .body { padding: 22px 22px 20px; display: flex; flex-direction: column; flex: 1; }
.case h3 { font-size: 1.14rem; letter-spacing: -0.01em; }
.case .where {
  margin-top: 6px;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  color: var(--muted-2);
  text-transform: uppercase;
}
.case p {
  margin-top: 12px;
  font-size: 0.86rem;
  color: var(--muted);
  line-height: 1.7;
  flex: 1;
}
.case .metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  margin-top: 18px;
  border: 1px solid var(--line);
}
.case .metrics div { background: rgba(255, 255, 255, 0.02); padding: 10px 12px; }
.case .metrics b {
  display: block;
  font-family: var(--mono);
  font-size: 1.06rem;
  font-weight: 500;
  color: #fff;
}
.case .metrics span {
  display: block;
  font-size: 0.66rem;
  color: var(--muted-2);
  margin-top: 2px;
  letter-spacing: 0.03em;
}
.case .go {
  margin-top: 16px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 0.82rem;
  color: var(--blue-soft);
}
.case .go svg { width: 13px; height: 13px; transition: transform 0.25s var(--ease); }
.case:hover .go svg { transform: translateX(3px); }

/* data-media variant: use a measured figure instead of a stock photo */
.case .media--data {
  display: grid;
  place-items: center;
  aspect-ratio: 16 / 9;
  background:
    radial-gradient(ellipse 70% 90% at 50% 110%, rgba(30, 111, 217, 0.28), transparent 70%),
    linear-gradient(160deg, #101a27, #080d14);
}
.case .media--data::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, #000, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, #000, transparent 78%);
}
.case .media--data::after { display: none; }
.case .media--data .dm { position: relative; text-align: center; }
.case .media--data .dm b {
  display: block;
  font-family: var(--mono);
  font-size: clamp(2.1rem, 3.6vw, 2.9rem);
  font-weight: 500;
  letter-spacing: -0.03em;
  color: #fff;
  line-height: 1;
}
.case .media--data .dm b small { font-size: 0.42em; color: var(--blue-soft); margin-left: 3px; }
.case .media--data .dm span {
  display: block;
  margin-top: 10px;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}
.case .media--data .dm i {
  display: block;
  margin-top: 4px;
  font-style: normal;
  font-family: var(--mono);
  font-size: 0.56rem;
  letter-spacing: 0.14em;
  color: var(--muted-2);
}

/* ---------- data table ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 3px; }
table.data {
  min-width: 620px;
  font-size: 0.85rem;
}
table.data th,
table.data td {
  text-align: left;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
table.data thead th {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted-2);
  font-weight: 400;
  background: rgba(255, 255, 255, 0.022);
  white-space: nowrap;
}
table.data tbody tr:last-child td { border-bottom: 0; }
table.data tbody tr:hover { background: rgba(59, 140, 255, 0.05); }
table.data.spec-table { min-width: 0; }
table.data td.num,
table.data th.num {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
table.data .up { color: var(--teal); }
table.data strong { color: #fff; font-weight: 500; }

/* ---------- index list (solutions) ---------- */
.index-list { border-top: 1px solid var(--line); }
.irow {
  display: grid;
  grid-template-columns: 56px minmax(0, 1.1fr) minmax(0, 1.5fr) 130px 34px;
  gap: clamp(14px, 2.2vw, 32px);
  align-items: center;
  padding: 24px 8px;
  border-bottom: 1px solid var(--line);
  transition: background 0.25s, padding 0.25s;
}
.irow:hover { background: rgba(255, 255, 255, 0.024); }
.irow .n { font-family: var(--mono); font-size: 0.66rem; color: var(--muted-2); letter-spacing: 0.1em; }
.irow h3 { font-size: 1.06rem; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.irow p { font-size: 0.84rem; color: var(--muted); line-height: 1.65; }
.irow .st {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-align: right;
  color: var(--muted-2);
}
.irow .st.on { color: var(--teal); }
.irow .st.plan { color: var(--amber); }
.irow .arw { color: var(--muted-2); transition: transform 0.25s, color 0.25s; }
.irow:hover .arw { transform: translateX(4px); color: var(--blue-soft); }

/* ---------- platform frame ---------- */
.frame {
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--panel);
  overflow: hidden;
  box-shadow: 0 50px 90px -60px #000;
}
.frame .bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.025);
}
.frame .bar i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--line-2);
  display: block;
}
.frame .bar span {
  margin-left: 8px;
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  color: var(--muted-2);
}
.frame img { width: 100%; display: block; }

/* ---------- feature list ---------- */
.ticks { display: grid; gap: 10px; margin-top: 22px; }
.ticks li {
  position: relative;
  padding-left: 22px;
  font-size: 0.88rem;
  color: var(--text-2);
  line-height: 1.6;
}
.ticks li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 9px;
  height: 1px;
  background: var(--blue);
}
.ticks li b { color: #fff; font-weight: 500; }

/* ---------- photo strip ---------- */
.strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.strip figure {
  margin: 0;
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #0a121c;
}
.strip img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(0.7) brightness(0.72) contrast(1.08);
  transition: filter 0.5s, transform 0.7s var(--ease);
}
.strip figure:hover img { filter: grayscale(0.2) brightness(0.85); transform: scale(1.03); }
.strip figcaption {
  position: absolute;
  left: 12px;
  bottom: 10px;
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  color: rgba(233, 239, 248, 0.8);
}

/* ---------- plate (product render) ---------- */
.plate {
  border: 1px solid var(--line);
  border-radius: 3px;
  background: linear-gradient(180deg, var(--plate), var(--plate-2));
  padding: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 190px;
  position: relative;
  overflow: hidden;
}
.plate img { max-height: 240px; width: auto; object-fit: contain; mix-blend-mode: multiply; }
.plate .cap {
  position: absolute;
  left: 12px;
  bottom: 10px;
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  color: #5b6c82;
}

/* ---------- tables / specs ---------- */
.spec-table th, .spec-table td { padding: 10px 14px; font-size: 0.82rem; }
.spec-table th {
  width: 34%;
  color: var(--muted);
  font-weight: 400;
  border-right: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
}
.spec-table td { font-family: var(--mono); font-size: 0.76rem; letter-spacing: 0.01em; }

/* ---------- timeline ---------- */
.timeline { position: relative; margin-top: 8px; }
.timeline::before {
  content: "";
  position: absolute;
  left: 78px;
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: var(--line);
}
.tl-item {
  display: grid;
  grid-template-columns: 78px minmax(0, 1fr);
  gap: 30px;
  padding-block: 18px;
  position: relative;
}
.tl-item::before {
  content: "";
  position: absolute;
  left: 74px;
  top: 30px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--bg);
  border: 1px solid var(--blue);
}
.tl-item b {
  font-family: var(--mono);
  font-size: 0.86rem;
  color: var(--blue-soft);
  font-weight: 500;
}
.tl-item h4 { font-size: 0.98rem; }
.tl-item p { margin-top: 5px; font-size: 0.83rem; color: var(--muted); line-height: 1.65; }

/* ---------- quotes / people ---------- */
.people {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.person { background: var(--bg); padding: 24px; }
.person b { display: block; font-size: 0.98rem; }
.person .role {
  display: block;
  margin-top: 4px;
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  color: var(--blue-soft);
  text-transform: uppercase;
}
.person p { margin-top: 12px; font-size: 0.82rem; color: var(--muted); line-height: 1.65; }

/* ---------- CTA ---------- */
.cta {
  position: relative;
  border-block: 1px solid var(--line);
  background:
    radial-gradient(ellipse 60% 120% at 50% 100%, rgba(30, 111, 217, 0.22), transparent 68%),
    var(--bg-soft);
  overflow: hidden;
}
.cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 70% 80% at 50% 60%, #000, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 70% 80% at 50% 60%, #000, transparent 75%);
}
.cta .wrap { position: relative; text-align: center; padding-block: clamp(64px, 8vw, 104px); }
.cta h2 {
  font-size: clamp(1.8rem, 3.2vw, 2.8rem);
  max-width: 24ch;
  margin-inline: auto;
  letter-spacing: -0.025em;
}
.cta p {
  margin: 18px auto 0;
  max-width: 56ch;
  color: var(--muted);
  font-size: 0.95rem;
}
.cta-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 32px;
}

/* ---------- footer ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  background: #0c141e;
  padding-top: clamp(48px, 6vw, 72px);
}
.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) repeat(3, minmax(0, 1fr));
  gap: clamp(24px, 4vw, 48px);
  padding-bottom: 48px;
}
.footer-brand p {
  margin-top: 18px;
  font-size: 0.84rem;
  color: var(--muted);
  max-width: 34ch;
  line-height: 1.8;
}
.footer-brand .mail {
  display: inline-block;
  margin-top: 16px;
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--blue-soft);
  border-bottom: 1px solid rgba(59, 140, 255, 0.4);
  padding-bottom: 2px;
}
.footer-col h4 {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted-2);
  font-weight: 400;
  margin-bottom: 16px;
}
.footer-col a,
.footer-col p {
  display: block;
  font-size: 0.84rem;
  color: var(--text-2);
  margin-bottom: 10px;
  line-height: 1.6;
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--blue-soft); }
.footer-col .mono-line {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--muted-2);
  letter-spacing: 0.02em;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
  padding-block: 18px;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.04em;
  color: var(--muted-2);
}
.footer-bottom .links { display: flex; gap: 18px; }
.footer-bottom a:hover { color: var(--text-2); }

/* ---------- page hero (inner pages) ---------- */
.page-hero {
  position: relative;
  padding-top: clamp(112px, 13vw, 150px);
  padding-bottom: clamp(36px, 4vw, 56px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(ellipse 70% 90% at 82% 0%, rgba(30, 111, 217, 0.16), transparent 62%),
    var(--bg);
  overflow: hidden;
}
.page-hero .crumb {
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.12em;
  color: var(--muted-2);
  text-transform: uppercase;
  margin-bottom: 20px;
}
.page-hero .crumb a:hover { color: var(--blue-soft); }
.page-hero h1 {
  font-size: clamp(2rem, 3.6vw, 3.2rem);
  letter-spacing: -0.03em;
  max-width: 24ch;
}
.page-hero .lead { margin-top: 20px; }
.page-hero-meta {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
  margin-top: 30px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}
.page-hero-meta div b {
  display: block;
  font-family: var(--mono);
  font-size: 1.1rem;
  color: #fff;
  font-weight: 500;
}
.page-hero-meta div span { font-size: 0.72rem; color: var(--muted-2); }

/* ---------- case detail ---------- */
.case-hero {
  padding-top: clamp(112px, 13vw, 150px);
  padding-bottom: clamp(32px, 4vw, 48px);
  background:
    radial-gradient(ellipse 60% 100% at 20% 0%, rgba(30, 111, 217, 0.15), transparent 60%),
    var(--bg);
  border-bottom: 1px solid var(--line);
}
.case-hero h1 { font-size: clamp(1.9rem, 3.4vw, 3rem); letter-spacing: -0.03em; max-width: 22ch; }
.case-hero .sub { margin-top: 14px; font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.1em; color: var(--muted-2); text-transform: uppercase; }
.case-meta {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-top: 38px;
}
.case-meta div { background: var(--bg-soft); padding: 18px 18px 16px; }
.case-meta dt {
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted-2);
}
.case-meta dd { margin: 7px 0 0; font-size: 0.86rem; color: var(--text); line-height: 1.5; }

.kpi-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-block: clamp(30px, 4vw, 48px);
}
.kpi { background: var(--panel); padding: 26px 24px; }
.kpi b {
  display: block;
  font-family: var(--mono);
  font-size: clamp(1.6rem, 2.6vw, 2.3rem);
  font-weight: 500;
  letter-spacing: -0.02em;
  color: #fff;
  line-height: 1.1;
}
.kpi b small { font-size: 0.5em; color: var(--blue-soft); }
.kpi span { display: block; margin-top: 8px; font-size: 0.78rem; color: var(--muted); }
.kpi i {
  display: block;
  margin-top: 10px;
  font-style: normal;
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  color: var(--muted-2);
  text-transform: uppercase;
}

.prose { max-width: 72ch; }
.prose h2 { font-size: clamp(1.4rem, 2.2vw, 1.9rem); margin-top: 1.8em; }
.prose h2:first-child { margin-top: 0; }
.prose p { margin-top: 16px; color: var(--text-2); font-size: 0.95rem; line-height: 1.85; }
.prose ul { margin-top: 16px; display: grid; gap: 9px; }
.prose ul li { position: relative; padding-left: 22px; font-size: 0.92rem; color: var(--text-2); line-height: 1.75; }
.prose ul li::before { content: ""; position: absolute; left: 0; top: 0.72em; width: 10px; height: 1px; background: var(--blue); }
.prose strong { color: #fff; font-weight: 500; }

.two-col {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: clamp(30px, 5vw, 64px);
  align-items: start;
}

.callout {
  border-left: 2px solid var(--blue);
  background: linear-gradient(90deg, rgba(30, 111, 217, 0.12), transparent);
  padding: 20px 24px;
  margin-top: 26px;
}
.callout p { margin: 0; font-size: 0.9rem; color: var(--text-2); line-height: 1.75; }
.callout .k {
  display: block;
  margin-bottom: 8px;
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--blue-soft);
}

.pager {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  border-top: 1px solid var(--line);
  padding-top: 24px;
  margin-top: 8px;
}
.pager a { font-size: 0.85rem; color: var(--muted); transition: color 0.2s; }
.pager a:hover { color: var(--blue-soft); }
.pager a span { display: block; font-family: var(--mono); font-size: 0.58rem; letter-spacing: 0.12em; color: var(--muted-2); text-transform: uppercase; margin-bottom: 5px; }

/* ---------- contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: start;
}
.contact-item {
  padding-block: 22px;
  border-bottom: 1px solid var(--line);
}
.contact-item .k {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted-2);
  margin-bottom: 8px;
}
.contact-item p,
.contact-item a { font-size: 1rem; color: var(--text); line-height: 1.7; }
.contact-item a:hover { color: var(--blue-soft); }
.contact-item small { display: block; margin-top: 4px; font-size: 0.76rem; color: var(--muted-2); }

.form { display: grid; gap: 14px; }
.field { display: grid; gap: 7px; }
.field label {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted-2);
}
.field input,
.field textarea,
.field select {
  width: 100%;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line-2);
  border-radius: 2px;
  color: var(--text);
  font: inherit;
  font-size: 0.9rem;
  padding: 12px 14px;
  transition: border-color 0.2s, background 0.2s;
}
.field input:focus,
.field textarea:focus,
.field select:focus {
  outline: none;
  border-color: var(--blue-bright);
  background: rgba(59, 140, 255, 0.06);
}
.field textarea { min-height: 108px; resize: vertical; }
.form .note { margin-top: 4px; }
.form-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }

/* ---------- filters ---------- */
.filters { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 30px; }
.filters button {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 8px 14px;
  transition: all 0.2s;
}
.filters button:hover { color: #fff; border-color: var(--line-2); }
.filters button.is-on { background: var(--blue); border-color: var(--blue); color: #fff; }

/* ---------- reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
  transition-delay: var(--d, 0ms);
}
.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .flow::after, .eyebrow .dot { animation: none; }
  .case .media img, .strip img { transition: none; }
}

/* ---------- responsive ---------- */
@media (max-width: 1080px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr); }
  .system-map { max-width: 620px; }
  .stats-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stat:nth-child(3) { border-left: 0; padding-left: 0; }
  .stat:nth-child(n + 3) { border-top: 1px solid var(--line); }
  .tier { grid-template-columns: minmax(0, 1fr); }
  .tier-meta { max-width: 60ch; }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .case-meta { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .irow { grid-template-columns: 40px minmax(0, 1fr) 110px 24px; }
  .irow p { grid-column: 2 / -1; }
  .people { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 860px) {
  .nav-links,
  .nav-cta .btn--ghost { display: none; }
  .burger { display: block; }
  .nav-cta { margin-left: auto; }
  .nav-cta .btn { display: none; }
  .burger { margin-left: 0; }

  .nav-links {
    position: fixed;
    inset: 74px 0 auto 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px var(--pad) 20px;
    background: rgba(16, 26, 38, 0.98);
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(16px);
  }
  body.nav-open .nav-links { display: flex; }
  .nav-links a {
    padding: 15px 0;
    border-bottom: 1px solid var(--line);
    font-size: 0.98rem;
  }
  .nav-links a::after { display: none; }
  .nav-links .mobile-cta {
    display: block;
    margin-top: 16px;
    text-align: center;
    border: 1px solid var(--blue);
    border-radius: 2px;
    padding: 12px;
    background: var(--blue);
    color: #fff;
  }

  .g-3, .g-4, .case-grid, .foundation, .two-col, .contact-grid,
  .strip, .plans { grid-template-columns: minmax(0, 1fr); }
  .tier-cards { grid-template-columns: minmax(0, 1fr); }
  .kpi-row { grid-template-columns: minmax(0, 1fr); }
  .case-meta { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .people { grid-template-columns: minmax(0, 1fr); }
  .footer-grid { grid-template-columns: minmax(0, 1fr); gap: 32px; }
  .footer-bottom { flex-direction: column; }
  .hero-facts { gap: 18px 26px; }
  .timeline::before { left: 54px; }
  .tl-item { grid-template-columns: 54px minmax(0, 1fr); gap: 22px; }
  .tl-item::before { left: 50px; }
  .form-row { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 560px) {
  .steps { grid-template-columns: minmax(0, 1fr); }
  .irow { grid-template-columns: 32px minmax(0, 1fr) 20px; }
  .irow .st { display: none; }
  .stat { padding: 22px 16px; }
  .hero { padding-top: 108px; }
  .brand .word small { display: none; }
  .case .metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-hero-meta { gap: 18px 24px; }
}