/* ============================================================
 *  Explore AI Infrastructure — solution / offering page
 *  Visual-first, low-text. Compact cinematic widgets.
 * ============================================================ */

:root {
  --x-bg: #05070F;
  --x-card: rgba(10,14,31,0.7);
  --x-line: rgba(79,200,255,0.1);
}
body { background: var(--x-bg); }

/* ---- Reveal ---- */
.inf-reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.7s ease, transform 0.7s ease; }
.inf-reveal.on { opacity: 1; transform: translateY(0); }

/* ============================================================
 *  HERO
 * ============================================================ */
.x-hero {
  padding: 120px 0 80px;
  position: relative;
  overflow: hidden;
}
.x-hero::before {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(900px 500px at 20% 30%, rgba(79,200,255,0.08), transparent 60%),
    radial-gradient(700px 400px at 80% 70%, rgba(124,141,255,0.06), transparent 60%);
  pointer-events: none;
}
.x-hero::after {
  content: ''; position: absolute; inset: 0;
  background-image:
    linear-gradient(0deg, rgba(79,200,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(79,200,255,0.04) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000, transparent 90%);
  pointer-events: none;
}
.x-hero-grid {
  display: grid; grid-template-columns: 1.3fr 1fr;
  gap: 60px; align-items: center;
  position: relative; z-index: 1;
}
@media (max-width: 1000px) { .x-hero-grid { grid-template-columns: 1fr; gap: 40px; } }

.x-hero-eyebrow {
  display: flex; align-items: center; gap: 14px;
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.18em; color: rgba(255,255,255,0.55);
  text-transform: uppercase;
  margin-bottom: 32px;
}

.x-hero-h1 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(48px, 6vw, 84px);
  line-height: 1.02;
  letter-spacing: -0.035em;
  color: #fff;
  margin: 0;
}
.x-hero-h1 em {
  font-style: italic;
  color: var(--site-cyan, #4FC8FF);
  font-family: 'Instrument Serif', serif;
}
.x-hero-sub {
  margin: 28px 0 36px;
  font-size: 17px;
  line-height: 1.55;
  color: var(--site-text-2);
  max-width: 520px;
}
.x-hero-ctas {
  display: flex; gap: 12px; flex-wrap: wrap;
}
.x-hero-strip {
  display: grid; grid-template-columns: repeat(5, 1fr);
  gap: 1px; margin-top: 60px;
  background: var(--x-line);
  border: 1px solid var(--x-line);
  border-radius: 3px;
  overflow: hidden;
}
.x-hero-strip > div {
  background: rgba(10,14,31,0.7);
  padding: 14px 16px;
  display: flex; flex-direction: column; gap: 4px;
}
.x-hero-strip b {
  font-family: var(--font-display);
  font-size: 28px; font-weight: 500;
  color: #fff; letter-spacing: -0.02em;
}
.x-hero-strip span {
  font-family: var(--font-mono);
  font-size: 10px; letter-spacing: 0.16em;
  color: rgba(255,255,255,0.55);
  text-transform: uppercase;
}

/* hero stack visual */
.x-hero-stack {
  display: flex; flex-direction: column; gap: 8px;
  perspective: 1400px;
  position: relative;
}
.x-hero-slab {
  --c: #4FC8FF;
  display: grid; grid-template-columns: 64px 1fr auto;
  align-items: center; gap: 16px;
  padding: 14px 22px;
  background: linear-gradient(90deg, rgba(10,14,31,0.92), rgba(10,14,31,0.6));
  border: 1px solid rgba(255,255,255,0.06);
  border-left: 2px solid color-mix(in oklab, var(--c) 30%, transparent);
  transform: rotateX(8deg) rotateY(-12deg) translateZ(0);
  transition: all 0.5s cubic-bezier(0.22, 0.61, 0.36, 1);
  transform-origin: left center;
}
.x-hero-slab.on {
  border-left-color: var(--c);
  background: linear-gradient(90deg, color-mix(in oklab, var(--c) 16%, transparent), rgba(10,14,31,0.6) 70%);
  box-shadow: 0 0 0 1px color-mix(in oklab, var(--c) 22%, transparent), 0 14px 40px color-mix(in oklab, var(--c) 18%, transparent);
  transform: rotateX(8deg) rotateY(-12deg) translateZ(20px) translateX(8px);
}
.x-hero-slab-code {
  font-family: var(--font-mono); font-size: 10.5px;
  letter-spacing: 0.18em; color: var(--c); font-weight: 600;
}
.x-hero-slab-label {
  font-family: var(--font-display); font-size: 17px;
  color: #fff; font-weight: 500; letter-spacing: -0.01em;
}
.x-hero-slab-pulse {
  width: 8px; height: 8px; border-radius: 50%;
  background: rgba(255,255,255,0.1);
  transition: background 0.4s, box-shadow 0.4s;
}
.x-hero-slab.on .x-hero-slab-pulse {
  background: var(--c); box-shadow: 0 0 12px var(--c);
}

/* ============================================================
 *  PILLARS
 * ============================================================ */
.x-pillars { padding: 100px 0; }
.x-pillars-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  background: var(--x-line);
  border: 1px solid var(--x-line);
  border-radius: 3px;
  overflow: hidden;
}
@media (max-width: 1100px) { .x-pillars-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px)  { .x-pillars-grid { grid-template-columns: 1fr; } }
.x-pillar {
  --c: #4FC8FF;
  background: var(--x-card);
  padding: 28px 24px 24px;
  display: flex; flex-direction: column; gap: 12px;
  position: relative; overflow: hidden;
  transition: background 0.3s ease;
  cursor: default;
}
.x-pillar.on {
  background:
    radial-gradient(400px 200px at 0% 0%, color-mix(in oklab, var(--c) 14%, transparent), transparent 60%),
    var(--x-card);
}
.x-pillar-head {
  display: flex; justify-content: space-between; align-items: center;
}
.x-pillar-tag {
  font-family: var(--font-mono); font-size: 10px;
  letter-spacing: 0.18em; color: rgba(255,255,255,0.4);
}
.x-pillar-name {
  font-family: var(--font-display); font-size: 22px;
  color: #fff; font-weight: 500; letter-spacing: -0.015em;
  margin-top: 6px;
}
.x-pillar-line {
  font-size: 13.5px; line-height: 1.5;
  color: var(--site-text-2);
}
.x-pillar-bar {
  margin-top: auto;
  height: 2px; width: 32px;
  background: var(--c);
  border-radius: 1px;
  transition: width 0.5s ease;
}
.x-pillar.on .x-pillar-bar { width: 100%; }

/* ============================================================
 *  WHAT'S INCLUDED
 * ============================================================ */
.x-included { padding: 100px 0; background: rgba(0,0,0,0.2); }

.x-inc-tabs {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px; margin-bottom: 32px;
  background: var(--x-line);
  border: 1px solid var(--x-line);
  border-radius: 3px;
  overflow: hidden;
}
@media (max-width: 800px) { .x-inc-tabs { grid-template-columns: repeat(2, 1fr); } }

.x-inc-tab {
  background: var(--x-card);
  border: 0; cursor: pointer;
  padding: 18px 18px 16px;
  text-align: left;
  display: flex; flex-direction: column; gap: 4px;
  position: relative;
  transition: background 0.2s ease;
}
.x-inc-tab:hover { background: rgba(10,14,31,0.95); }
.x-inc-tab.on {
  background:
    linear-gradient(180deg, color-mix(in oklab, var(--c) 18%, transparent), transparent 70%),
    rgba(10,14,31,0.95);
}
.x-inc-tab.on::after {
  content: ''; position: absolute; left: 0; bottom: 0; right: 0;
  height: 2px; background: var(--c);
}
.x-inc-tab-tag {
  font-family: var(--font-mono); font-size: 9.5px;
  letter-spacing: 0.18em; color: rgba(255,255,255,0.45);
}
.x-inc-tab.on .x-inc-tab-tag { color: var(--c); }
.x-inc-tab-name {
  font-family: var(--font-display); font-size: 18px;
  color: #fff; font-weight: 500; letter-spacing: -0.01em;
}
.x-inc-tab-count {
  font-family: var(--font-mono); font-size: 10.5px;
  color: rgba(255,255,255,0.5);
  margin-top: 2px;
}

.x-inc-list {
  --c: #4FC8FF;
  display: grid; gap: 1px;
  background: var(--x-line);
  border: 1px solid var(--x-line);
  border-radius: 3px;
  overflow: hidden;
}
.x-inc-item {
  display: grid;
  grid-template-columns: 48px 36px 280px 1fr;
  align-items: center;
  gap: 18px;
  padding: 16px 22px;
  background: var(--x-card);
  transition: background 0.25s ease;
  animation: x-fade-in 0.5s cubic-bezier(0.22, 0.61, 0.36, 1) backwards;
  animation-delay: calc(var(--i, 0) * 0.06s);
}
@keyframes x-fade-in {
  from { opacity: 0; transform: translateX(-8px); }
  to   { opacity: 1; transform: translateX(0); }
}
.x-inc-item:hover {
  background: linear-gradient(90deg, color-mix(in oklab, var(--c) 8%, transparent), rgba(10,14,31,0.95) 40%);
}
.x-inc-num {
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.16em; color: rgba(255,255,255,0.4);
}
.x-inc-check {
  width: 28px; height: 28px;
  border-radius: 2px;
  border: 1px solid color-mix(in oklab, var(--c) 40%, transparent);
  background: color-mix(in oklab, var(--c) 14%, transparent);
  color: var(--c);
  display: flex; align-items: center; justify-content: center;
}
.x-inc-check svg { width: 16px; height: 16px; }
.x-inc-h {
  font-family: var(--font-display); font-size: 16px;
  color: #fff; font-weight: 500; letter-spacing: -0.005em;
}
.x-inc-sub {
  font-size: 13px; color: var(--site-text-2); line-height: 1.4;
}
@media (max-width: 800px) {
  .x-inc-item { grid-template-columns: 32px 28px 1fr; row-gap: 4px; }
  .x-inc-sub { grid-column: 1 / -1; padding-left: 60px; }
}

/* ============================================================
 *  ENGAGEMENT
 * ============================================================ */
.x-engage { padding: 100px 0; }
.x-engage-track {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  position: relative;
}
.x-engage-line {
  position: absolute; left: 4%; right: 4%; top: 24px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(79,200,255,0.4), rgba(94,255,164,0.4), transparent);
}
@media (max-width: 1000px) {
  .x-engage-track { grid-template-columns: 1fr; }
  .x-engage-line { left: 22px; right: auto; top: 4%; bottom: 4%; width: 1px; height: auto;
                   background: linear-gradient(180deg, transparent, rgba(79,200,255,0.4), rgba(94,255,164,0.4), transparent); }
}
.x-engage-phase {
  --c: #4FC8FF;
  display: flex; flex-direction: column; gap: 16px;
  position: relative;
  animation: x-engage-in 0.7s cubic-bezier(0.22, 0.61, 0.36, 1) backwards;
  animation-delay: calc(var(--i, 0) * 0.18s);
}
@keyframes x-engage-in {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}
.x-engage-marker {
  display: flex; align-items: center; gap: 10px;
}
.x-engage-marker-dot {
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--x-bg);
  border: 2px solid var(--c);
  position: relative;
  box-shadow: 0 0 0 6px var(--x-bg), 0 0 16px color-mix(in oklab, var(--c) 50%, transparent);
}
.x-engage-marker-dot::after {
  content: ''; position: absolute; inset: 3px;
  background: var(--c); border-radius: 50%;
}
.x-engage-marker-label {
  font-family: var(--font-mono); font-size: 10.5px;
  letter-spacing: 0.18em; color: var(--c);
}
.x-engage-card {
  padding: 24px;
  background: var(--x-card);
  border: 1px solid var(--x-line);
  border-top: 2px solid var(--c);
  border-radius: 3px;
}
.x-engage-card-head {
  display: flex; justify-content: space-between; align-items: baseline;
  margin-bottom: 14px;
}
.x-engage-tag {
  font-family: var(--font-mono); font-size: 10px;
  letter-spacing: 0.16em; color: var(--c);
}
.x-engage-range {
  font-family: var(--font-mono); font-size: 10.5px;
  color: rgba(255,255,255,0.55); letter-spacing: 0.06em;
}
.x-engage-name {
  font-family: var(--font-display); font-size: 28px;
  color: #fff; font-weight: 500; letter-spacing: -0.02em;
  line-height: 1.05; margin-bottom: 10px;
}
.x-engage-one {
  font-size: 14px; color: var(--site-text-2); line-height: 1.55;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--x-line);
  margin-bottom: 14px;
}
.x-engage-out {
  list-style: none; padding: 0; margin: 0;
  display: flex; flex-direction: column; gap: 8px;
}
.x-engage-out li {
  display: flex; align-items: center; gap: 10px;
  font-size: 13.5px; color: rgba(255,255,255,0.85);
}
.x-engage-out svg { width: 14px; height: 14px; color: var(--c); flex-shrink: 0; }

/* ============================================================
 *  DEPLOY
 * ============================================================ */
.x-deploy { padding: 100px 0; background: rgba(0,0,0,0.2); }
.x-deploy-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px;
  background: var(--x-line);
  border: 1px solid var(--x-line);
  border-radius: 3px;
  overflow: hidden;
}
@media (max-width: 1000px) { .x-deploy-grid { grid-template-columns: 1fr; } }
.x-deploy-card {
  --c: #4FC8FF;
  background: var(--x-card);
  padding: 32px 28px;
  display: flex; flex-direction: column; gap: 16px;
  position: relative; overflow: hidden;
  animation: x-engage-in 0.7s cubic-bezier(0.22, 0.61, 0.36, 1) backwards;
  animation-delay: calc(var(--i, 0) * 0.12s);
  transition: background 0.3s;
}
.x-deploy-card::before {
  content: ''; position: absolute; left: 0; top: 0; right: 0; height: 2px; background: var(--c);
}
.x-deploy-card:hover {
  background:
    radial-gradient(500px 250px at 0% 0%, color-mix(in oklab, var(--c) 12%, transparent), transparent 60%),
    var(--x-card);
}
.x-deploy-tag {
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.2em; color: var(--c); font-weight: 600;
}
.x-deploy-name {
  font-family: var(--font-display); font-size: 30px;
  color: #fff; font-weight: 500; letter-spacing: -0.02em;
  line-height: 1; margin-top: -4px;
}
.x-deploy-sub {
  font-family: var(--font-display); font-size: 16px;
  color: var(--c); letter-spacing: -0.005em;
  font-style: italic;
  font-family: 'Instrument Serif', serif;
}
.x-deploy-one {
  font-size: 13.5px; color: var(--site-text-2); line-height: 1.55;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--x-line);
}
.x-deploy-cells {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1px;
  background: var(--x-line);
  border: 1px solid var(--x-line);
  border-radius: 2px;
  overflow: hidden;
  margin-top: auto;
}
.x-deploy-cell {
  background: rgba(0,0,0,0.3);
  padding: 10px 12px;
  display: flex; flex-direction: column; gap: 3px;
}
.x-deploy-cell span {
  font-family: var(--font-mono); font-size: 9px;
  letter-spacing: 0.16em; color: rgba(255,255,255,0.45);
}
.x-deploy-cell b {
  font-family: var(--font-mono); font-size: 12px;
  color: #fff; font-weight: 500;
}

/* ============================================================
 *  FAQ
 * ============================================================ */
.x-faq { padding: 100px 0; }
.x-faq-list {
  display: flex; flex-direction: column; gap: 1px;
  background: var(--x-line);
  border: 1px solid var(--x-line);
  border-radius: 3px;
  overflow: hidden;
}
.x-faq-item { background: var(--x-card); }
.x-faq-q {
  width: 100%; background: transparent; border: 0; cursor: pointer;
  display: grid; grid-template-columns: 56px 1fr 24px;
  align-items: center; gap: 16px;
  padding: 22px 24px;
  text-align: left;
  font: inherit;
  color: #fff;
}
.x-faq-num {
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.16em; color: rgba(255,255,255,0.45);
}
.x-faq-text {
  font-family: var(--font-display); font-size: 18px;
  font-weight: 500; letter-spacing: -0.01em;
  color: #fff;
}
.x-faq-plus {
  font-family: var(--font-mono); font-size: 22px;
  color: var(--site-cyan, #4FC8FF);
  font-weight: 300;
}
.x-faq-a {
  max-height: 0; overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.22, 0.61, 0.36, 1);
}
.x-faq-item.on .x-faq-a { max-height: 220px; }
.x-faq-a p {
  margin: 0; padding: 0 24px 22px 96px;
  font-size: 14.5px; color: var(--site-text-2); line-height: 1.6;
  max-width: 720px;
}

/* ============================================================
 *  CTA
 * ============================================================ */
.x-cta { padding: 80px 0 120px; }
.x-cta-wrap {
  background:
    radial-gradient(700px 300px at 80% 50%, rgba(94,255,164,0.06), transparent 60%),
    linear-gradient(180deg, rgba(10,14,31,0.7), rgba(5,7,15,0.85));
  border: 1px solid rgba(94,255,164,0.18);
  border-radius: 4px;
  padding: 60px 56px;
  position: relative; overflow: hidden;
}
.x-cta-grid {
  display: grid; grid-template-columns: 1.4fr 1fr; gap: 60px;
  align-items: center;
}
@media (max-width: 1000px) { .x-cta-grid { grid-template-columns: 1fr; } }
.x-cta-h {
  font-family: var(--font-display); font-weight: 400;
  font-size: clamp(32px, 4vw, 48px);
  letter-spacing: -0.025em;
  color: #fff; margin: 12px 0 16px;
  line-height: 1.05;
}
.x-cta-p {
  font-size: 15px; color: var(--site-text-2); line-height: 1.55;
  max-width: 540px; margin: 0 0 28px;
}
.x-cta-row { display: flex; gap: 12px; flex-wrap: wrap; }

.x-cta-stat {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px;
  background: rgba(94,255,164,0.18);
  border-radius: 3px;
  overflow: hidden;
}
.x-cta-stat-row {
  background: rgba(0,0,0,0.6);
  padding: 22px 18px;
  display: flex; flex-direction: column; gap: 4px;
}
.x-cta-stat-row b {
  font-family: var(--font-display); font-size: 36px;
  color: #fff; font-weight: 500; letter-spacing: -0.02em;
  line-height: 1;
}
.x-cta-stat-row span {
  font-family: var(--font-mono); font-size: 10px;
  letter-spacing: 0.18em; color: #5EFFA4;
  text-transform: uppercase;
}