/* Homepage — magazine layout, Template D color palette (pre–mockup redesign). */

body.site-hub--magazine {
  color-scheme: dark;
  --hp-bg: #090c14;
  --hp-surface: #111820;
  --hp-card: #141a24;
  --hp-border: rgba(255, 255, 255, 0.08);
  --hp-text: #e8eaef;
  --hp-muted: #8b949e;
  --hp-violet: #7b8cff;
  --hp-amber: #f59e0b;
  --hp-green: #10b981;
  --hp-cyan: #38bdf8;
  --hp-coral: #ea724c;
  --hp-orange: var(--hp-amber);
  --hp-purple: var(--hp-violet);
  --hp-orange-dim: rgba(245, 158, 11, 0.12);
  --hp-purple-dim: rgba(123, 140, 255, 0.12);
  --hp-hover-bg: #161b22;
  --hp-hover-border: rgba(123, 140, 255, 0.35);
  --hp-shadow: 0 1px 0 rgba(255, 255, 255, 0.04) inset, 0 12px 40px rgba(0, 0, 0, 0.28);
  --hp-shadow-soft: 0 8px 32px rgba(0, 0, 0, 0.2);
  --topic-sd: #7dd3fc;
  --topic-ai: #4ade80;
  --topic-devops: #58a6ff;
  --topic-prod: #c4b5fd;
  --topic-kafka: #fb923c;
  --topic-aws-core: #ff9900;
  --topic-unix: #3fb950;
  --topic-java: #f89820;
  --topic-service-core: #4fc3f7;
  --topic-spring: #6db33f;
  --topic-ai-search: #22d3ee;
  --topic-scrutin: #facc15;
  --hp-accent-bar: 2px;
  --hp-search-icon: #2dd4bf;
  background: var(--hp-bg);
  color: var(--hp-text);
  font-family: "JetBrains Mono", ui-monospace, monospace;
}

body.site-hub--magazine::before {
  display: none;
}

body.site-hub--magazine .hp-main,
body.site-hub--magazine .hp-footer {
  position: relative;
  z-index: 1;
}

/* ── Top bar ── */
body.site-hub--magazine .hp-topbar {
  display: block;
  max-width: none;
  width: 100%;
  padding: 0;
  background: var(--hp-bg);
  border-bottom: 1px solid var(--hp-border);
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}

body.site-hub--magazine .hp-topbar__inner {
  grid-template-areas: "brand nav actions";
  gap: 16px 24px;
}

body.site-hub--magazine .hp-topbar__search-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  border: 1px solid var(--hp-border);
  border-radius: 10px;
  background: var(--hp-surface);
  color: var(--hp-muted);
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

body.site-hub--magazine .hp-topbar__search-btn:hover {
  color: var(--hp-text);
  border-color: var(--hp-hover-border);
  background: var(--hp-hover-bg);
}

body.site-hub--magazine .hp-topbar__search-btn:focus-visible {
  outline: 2px solid var(--hp-violet);
  outline-offset: 2px;
}

body.site-hub--magazine .hp-topbar__search-btn svg {
  width: 16px;
  height: 16px;
}

body.site-hub--magazine .hp-topbar .site-brand {
  color: var(--hp-text);
}

body.site-hub--magazine .hp-topbar .site-brand__tld {
  color: var(--accent1);
}

html[data-hp-theme="light"] body.site-hub--magazine .hp-topbar .site-brand__tld {
  color: var(--phase1);
}

body.site-hub--magazine .hp-topbar__inner > .hp-nav {
  grid-area: nav;
  justify-self: center;
  min-width: 0;
}

body.site-hub--magazine .hp-topbar__actions {
  grid-area: actions;
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Theme toggle — same morphing icon control as shared header (llms-explained) */
body.site-hub--magazine .site-header__icon-btn.site-theme-toggle {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  border: 1px solid var(--hp-border);
  border-radius: 10px;
  background: var(--hp-surface);
  color: var(--hp-muted);
  cursor: pointer;
  overflow: visible;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

body.site-hub--magazine .site-header__icon-btn.site-theme-toggle:hover {
  color: var(--hp-text);
  border-color: var(--hp-hover-border);
  background: var(--hp-hover-bg);
}

body.site-hub--magazine .site-header__icon-btn.site-theme-toggle:focus-visible {
  outline: 2px solid var(--hp-violet);
  outline-offset: 2px;
}

body.site-hub--magazine .site-theme-toggle__stack {
  position: relative;
  display: block;
  width: 16px;
  height: 16px;
}

body.site-hub--magazine .site-theme-toggle__icon {
  position: absolute;
  inset: 0;
  width: 16px;
  height: 16px;
  transition:
    opacity 0.2s ease,
    transform 0.34s cubic-bezier(0.34, 1.45, 0.64, 1),
    filter 0.25s ease;
}

body.site-hub--magazine .site-theme-toggle:not([aria-pressed="true"]) .site-theme-toggle__icon--moon {
  opacity: 1;
  transform: rotate(0deg) scale(1);
  filter: drop-shadow(0 0 6px rgba(165, 180, 252, 0.45));
  color: #c4d0ff;
}

body.site-hub--magazine .site-theme-toggle:not([aria-pressed="true"]) .site-theme-toggle__icon--sun {
  opacity: 0;
  transform: rotate(50deg) scale(0.55);
}

body.site-hub--magazine .site-theme-toggle[aria-pressed="true"] .site-theme-toggle__icon--moon {
  opacity: 0;
  transform: rotate(-50deg) scale(0.55);
}

body.site-hub--magazine .site-theme-toggle[aria-pressed="true"] .site-theme-toggle__icon--sun {
  opacity: 1;
  transform: rotate(0deg) scale(1);
  filter: drop-shadow(0 0 6px rgba(245, 158, 11, 0.4));
  color: #fbbf24;
}

body.site-hub--magazine .site-theme-toggle::before {
  content: "";
  position: absolute;
  inset: 3px;
  border-radius: 7px;
  opacity: 0;
  background: radial-gradient(circle at 50% 50%, rgba(74, 222, 128, 0.22), transparent 70%);
  transition: opacity 0.2s ease;
  pointer-events: none;
}

body.site-hub--magazine .site-theme-toggle:hover::before,
body.site-hub--magazine .site-theme-toggle:focus-visible::before {
  opacity: 1;
}

html[data-hp-theme="light"] body.site-hub--magazine .site-theme-toggle:not([aria-pressed="true"]) .site-theme-toggle__icon--moon {
  color: #6366f1;
  filter: drop-shadow(0 0 4px rgba(99, 102, 241, 0.25));
}

html[data-hp-theme="light"] body.site-hub--magazine .site-theme-toggle[aria-pressed="true"] .site-theme-toggle__icon--sun {
  color: #d97706;
  filter: drop-shadow(0 0 4px rgba(217, 119, 6, 0.3));
}

@media (prefers-reduced-motion: reduce) {
  body.site-hub--magazine .site-theme-toggle__icon {
    transition-duration: 0.01ms;
  }
}

body.site-hub--magazine .site-search-trigger {
  width: 100%;
  min-width: 0;
  max-width: none;
  height: 40px;
  padding: 0 10px 0 12px;
  justify-content: flex-start;
  gap: 10px;
  border-radius: 10px;
  border: 1px solid var(--hp-border);
  background: var(--hp-surface);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.04),
    0 1px 2px rgba(0, 0, 0, 0.12);
  color: var(--hp-muted);
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.01em;
  transform: none;
  transition:
    border-color 0.2s ease,
    background 0.2s ease,
    box-shadow 0.2s ease;
}

body.site-hub--magazine .site-search-trigger:hover {
  border-color: rgba(45, 212, 191, 0.4);
  color: var(--hp-text);
  background: var(--hp-hover-bg);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.04),
    0 0 0 3px rgba(45, 212, 191, 0.1);
  transform: none;
}

body.site-hub--magazine .site-search-trigger:focus-visible {
  outline: none;
  border-color: rgba(45, 212, 191, 0.55);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.04),
    0 0 0 3px rgba(45, 212, 191, 0.18);
}

body.site-hub--magazine .site-search-trigger__icon {
  color: var(--hp-search-icon);
  opacity: 1;
  flex-shrink: 0;
}

body.site-hub--magazine .site-search-trigger__label.site-search-typehint {
  display: inline-flex !important;
  flex: 1 1 auto;
  min-width: 0;
  text-align: left;
  font-family: inherit;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--hp-muted);
  opacity: 0.9;
}

body.site-hub--magazine .site-search-trigger:hover .site-search-trigger__label.site-search-typehint {
  color: var(--hp-text);
  opacity: 0.85;
}

body.site-hub--magazine .site-search-typehint__caret {
  display: none;
}

body.site-hub--magazine .site-search-trigger__kbd {
  display: inline-flex !important;
  align-items: center;
  flex-shrink: 0;
  margin-left: auto;
  padding: 3px 7px;
  border-radius: 6px;
  border: 1px solid var(--hp-border);
  background: var(--hp-bg);
  color: var(--hp-muted);
  font-family: inherit;
  font-size: 10px;
  font-weight: 500;
  line-height: 1.2;
}

.hp-nav__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 4px 22px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.hp-nav__link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: "Syne", system-ui, sans-serif;
  font-size: 13px;
  font-weight: 600;
  color: rgba(232, 234, 239, 0.72);
  text-decoration: none;
  transition: color 0.2s ease, text-decoration-color 0.2s ease;
}

.hp-nav__link:has(.hp-nav__chev) {
  text-decoration: underline dotted;
  text-underline-offset: 5px;
  text-decoration-color: rgba(232, 234, 239, 0.22);
}

.hp-nav__link:hover {
  color: var(--hp-text);
}

.hp-nav__link:has(.hp-nav__chev):hover {
  text-decoration-color: rgba(232, 234, 239, 0.45);
}

.hp-nav__chev {
  font-size: 10px;
  opacity: 0.55;
}

/* Topic icon boxes (reference list style) */
.hp-icon-box {
  --icon-accent: var(--hp-violet);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  border: 1px solid color-mix(in srgb, var(--icon-accent) 32%, transparent);
  background: color-mix(in srgb, var(--icon-accent) 10%, transparent);
}

.hp-icon-box--sm {
  width: 36px;
  height: 36px;
  border-radius: 8px;
}

.hp-icon-box--system-design {
  --icon-accent: var(--topic-sd);
}

.hp-icon-box--applied-ai {
  --icon-accent: var(--topic-ai);
}

.hp-icon-box--ai-search {
  --icon-accent: var(--topic-ai-search);
}

.hp-icon-box--devops {
  --icon-accent: var(--topic-devops);
}

.hp-icon-box--production {
  --icon-accent: var(--topic-prod);
}

.hp-icon-box--kafka {
  --icon-accent: var(--topic-kafka);
}

.hp-icon-box--aws-core {
  --icon-accent: var(--topic-aws-core);
}

.hp-icon-box--unix {
  --icon-accent: var(--topic-unix);
}

.hp-icon-box--java {
  --icon-accent: var(--topic-java);
}

.hp-icon-box--service-core {
  --icon-accent: var(--topic-service-core);
}

.hp-icon-box--spring {
  --icon-accent: var(--topic-spring);
}

.hp-icon-box--scrutin {
  --icon-accent: var(--topic-scrutin);
}

.hp-icon-box .hp-topic-icon {
  width: 24px;
  height: 24px;
  display: block;
}

.hp-icon-box--sm .hp-topic-icon {
  width: 22px;
  height: 22px;
}

.hp-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 8px;
  font-family: "Syne", system-ui, sans-serif;
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  border: 1px solid transparent;
  white-space: nowrap;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.hp-btn--ghost {
  color: var(--hp-text);
  border-color: var(--hp-border);
  background: transparent;
}

.hp-btn--ghost:hover {
  border-color: var(--hp-hover-border);
  background: var(--hp-surface);
}

.hp-btn--primary {
  color: #090c14;
  background: var(--hp-amber);
  border-color: var(--hp-amber);
}

.hp-btn--primary:hover {
  background: #fbbf24;
  border-color: #fbbf24;
}

.hp-btn--outline {
  color: var(--hp-text);
  border-color: var(--hp-border);
  background: transparent;
}

.hp-btn--outline:hover {
  border-color: var(--hp-hover-border);
  background: var(--hp-surface);
}

.hp-btn--lg {
  padding: 11px 20px;
  font-size: 14px;
}

/* ── Shell ── */
.hp-shell {
  width: min(1200px, 100%);
  margin: 0 auto;
  padding-inline: clamp(20px, 4vw, 40px);
}

.hp-kicker {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--hp-violet);
  margin: 0 0 12px;
}

.hp-accent {
  background: linear-gradient(120deg, var(--hp-violet) 0%, #a78bfa 55%, var(--hp-cyan) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ── Hero ── */
.hp-hero {
  position: relative;
  padding: clamp(40px, 6vw, 64px) 0 clamp(32px, 5vw, 48px);
}

.hp-hero::before {
  content: "";
  position: absolute;
  top: 10%;
  right: 0;
  width: min(58%, 640px);
  height: 80%;
  background: radial-gradient(ellipse 70% 60% at 60% 50%, rgba(123, 140, 255, 0.1), transparent 68%);
  pointer-events: none;
}

.hp-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 54%);
  gap: 24px 32px;
  align-items: center;
}

.hp-hero__title {
  font-family: "Syne", system-ui, sans-serif;
  font-size: clamp(2.2rem, 5.5vw, 3.25rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--hp-text);
  max-width: 12ch;
}

.hp-hero__lede {
  margin-top: 16px;
  max-width: 46ch;
  font-size: 14px;
  line-height: 1.7;
  color: var(--hp-muted);
}

.hp-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.hp-hero__art {
  position: relative;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  overflow: visible;
}

.hp-hero {
  overflow: visible;
}

/* Hero: iPad + 3D pop-out icons (no circular portal background) */
.hp-hero-scene {
  position: relative;
  width: min(100%, 720px);
  margin-inline: auto;
  aspect-ratio: 3 / 2;
  perspective: 1400px;
  touch-action: pan-y;
  overflow: visible;
}

.hp-hero-scene__stage {
  position: relative;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
  overflow: visible;
}

.hp-hero-scene__core {
  position: absolute;
  left: 50%;
  top: 60%;
  z-index: 5;
  width: 100%;
  max-width: 620px;
  transform: translate3d(-50%, -50%, 0);
  transform-style: preserve-3d;
  animation: hp-scene-float 7s ease-in-out infinite;
  pointer-events: none;
}

.hp-hero-scene__device {
  position: relative;
  width: 100%;
  overflow: visible;
  transform-style: preserve-3d;
}

/* Side-view flat tablet — inset from hero-tablet-side.png (1536×1024) */
.hp-hero-tablet {
  --tablet-screen-left: 12.695%;
  --tablet-screen-top: 38.086%;
  --tablet-screen-width: 74.544%;
  --tablet-screen-height: 16.602%;
  --tablet-screen-radius: 0.9%;
  --emit-rise: 40%;
  /* Foreshorten logo onto side-view glass (screen plane) */
  --logo-flat-scale-x: 1.08;
  --logo-flat-scale-y: 0.36;
  --logo-flat-skew-x: -7deg;
  position: relative;
  z-index: 2;
  width: 100%;
  line-height: 0;
}

.hp-hero-tablet__frame-shell {
  position: relative;
  z-index: 4;
  line-height: 0;
}

.hp-hero-tablet__frame {
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  height: auto;
  vertical-align: top;
}

/* Full PNG aspect for emit/icon % — day & night share the same box */
.hp-hero-tablet__layout-guide {
  display: none;
}

html:not([data-hp-theme="light"]) .hp-hero-tablet {
  overflow: visible;
}

html:not([data-hp-theme="light"]) .hp-hero-tablet__layout-guide {
  display: block;
  width: 100%;
  aspect-ratio: 1536 / 1024;
  visibility: hidden;
  pointer-events: none;
}

/* Dark mode: crop white floor — frame only, overlaid on layout guide */
html:not([data-hp-theme="light"]) .hp-hero-tablet__frame-shell {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  aspect-ratio: 1536 / 600;
  overflow: hidden;
}

html:not([data-hp-theme="light"]) .hp-hero-tablet__frame-shell::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 5px;
  background: var(--hp-bg);
  z-index: 2;
  pointer-events: none;
}

html:not([data-hp-theme="light"]) .hp-hero-tablet__frame {
  filter: none;
  box-shadow: none;
}

/* Beams + logo and icons; frame sits between glow and screen clip */
.hp-hero-scene__emit-glow,
.hp-hero-scene__emit-icons {
  position: absolute;
  left: var(--tablet-screen-left);
  width: var(--tablet-screen-width);
  top: calc(var(--tablet-screen-top) - var(--emit-rise));
  height: calc(var(--emit-rise) + var(--tablet-screen-height));
  overflow: visible;
  pointer-events: none;
  transform-style: preserve-3d;
}

.hp-hero-scene__emit-glow {
  z-index: 2;
  perspective: 680px;
}

.hp-hero-scene__emit-icons {
  z-index: 6;
}

/* Glowing logo clipped to tablet glass (no overlay panel) */
.hp-hero-tablet__screen-clip {
  position: absolute;
  left: var(--tablet-screen-left);
  top: var(--tablet-screen-top);
  width: var(--tablet-screen-width);
  height: var(--tablet-screen-height);
  border-radius: var(--tablet-screen-radius);
  overflow: hidden;
  z-index: 4;
  pointer-events: none;
}

.hp-hero-tablet__logo-emitter {
  position: absolute;
  left: 50%;
  top: 50%;
  width: var(--logo-size, 56px);
  height: var(--logo-size, 56px);
  transform: translate(-50%, -50%) skewX(var(--logo-flat-skew-x))
    scale(var(--logo-flat-scale-x), var(--logo-flat-scale-y));
  transform-origin: 50% 50%;
  display: grid;
  place-items: center;
}

.hp-hero-tablet__logo-glow {
  position: absolute;
  inset: -35% -55%;
  border-radius: 50%;
  pointer-events: none;
  background: radial-gradient(
    ellipse 100% 55% at 50% 50%,
    rgba(124, 140, 255, 0.55) 0%,
    rgba(92, 239, 184, 0.32) 42%,
    rgba(123, 140, 255, 0.08) 68%,
    transparent 76%
  );
  animation: hp-logo-glow-pulse 4s ease-in-out infinite;
}

.hp-hero-tablet__logo-glow--halo {
  inset: -55% -85%;
  border-radius: 50%;
  opacity: 0.45;
  filter: blur(10px);
  animation-duration: 5.5s;
  background: radial-gradient(
    ellipse 100% 50% at 50% 50%,
    rgba(124, 140, 255, 0.35) 0%,
    rgba(92, 239, 184, 0.15) 50%,
    transparent 72%
  );
}

.hp-hero-tablet__logo-mark {
  position: relative;
  z-index: 1;
  display: block;
  width: 74%;
  height: 74%;
  object-fit: contain;
  filter:
    drop-shadow(0 0 6px rgba(92, 239, 184, 0.85))
    drop-shadow(0 0 14px rgba(124, 140, 255, 0.75))
    drop-shadow(0 0 24px rgba(123, 140, 255, 0.45));
}

html[data-hp-theme="light"] .hp-hero-tablet__logo-mark {
  filter:
    drop-shadow(0 0 5px rgba(92, 239, 184, 0.7))
    drop-shadow(0 0 12px rgba(124, 140, 255, 0.55))
    drop-shadow(0 0 20px rgba(123, 140, 255, 0.35));
}

html[data-hp-theme="light"] .hp-hero-tablet__logo-glow {
  background: radial-gradient(
    circle,
    rgba(124, 140, 255, 0.42) 0%,
    rgba(92, 239, 184, 0.24) 45%,
    transparent 74%
  );
}

@keyframes hp-logo-glow-pulse {
  0%,
  100% {
    opacity: 0.72;
    transform: scale(1, 1);
  }
  50% {
    opacity: 1;
    transform: scale(1.05, 1.08);
  }
}

/* SVG amplifying wedges: home-hero-scene.js (screen center → icons) */
.hp-hero-scene__beams {
  position: absolute;
  inset: 0;
  z-index: 2;
  width: 100%;
  height: 100%;
  overflow: visible;
  pointer-events: none;
}

.hp-hero-beam-fan {
  stroke: none;
  opacity: 0;
  transition: opacity 0.35s ease;
}

.hp-hero-scene--beams-ready .hp-hero-beam-fan {
  opacity: 0.18;
}

html:not([data-hp-theme="light"]) .hp-hero-beam-fan {
  filter: none;
}

html:not([data-hp-theme="light"]) .hp-hero-scene--beams-ready .hp-hero-beam-fan {
  opacity: 0.22;
}

html[data-hp-theme="light"] .hp-hero-beam-fan {
  filter: url(#hp-fan-soft);
}

html[data-hp-theme="light"] .hp-hero-scene--beams-ready .hp-hero-beam-fan {
  opacity: 0.14;
}

.hp-hero-pop {
  position: absolute;
  margin: 0;
  left: var(--fan-x);
  top: var(--fan-y);
  transform-style: preserve-3d;
  z-index: 5;
  transform: translate3d(-50%, -50%, var(--pop-z, 0)) scale(var(--fan-scale, 1));
  animation: hp-hero-pop-float 7s ease-in-out infinite;
}

.hp-hero-pop img {
  display: block;
  width: var(--pop-w, 64px);
  height: auto;
  transform: translateZ(0);
  filter: var(
    --pop-glow,
    drop-shadow(0 16px 28px rgba(0, 0, 0, 0.45)) drop-shadow(0 4px 10px rgba(0, 0, 0, 0.3))
  );
}

html:not([data-hp-theme="light"]) .hp-hero-pop img {
  filter: var(
    --pop-glow,
    drop-shadow(0 12px 20px rgba(0, 0, 0, 0.55)) drop-shadow(0 2px 6px rgba(0, 0, 0, 0.4))
  );
}

/* Semi-circle above screen (emit layer coordinates) */
.hp-hero-pop--ai {
  --fan-x: 8%;
  --fan-y: 48%;
  --fan-scale: 1.08;
  --pop-z: 62px;
  --pop-w: clamp(48px, 10vw, 72px);
  --pop-glow: drop-shadow(0 0 22px rgba(124, 140, 255, 0.65)) drop-shadow(0 14px 24px rgba(0, 0, 0, 0.4));
  animation-delay: 0s;
  z-index: 6;
}

.hp-hero-pop--kafka {
  --fan-x: 26%;
  --fan-y: 28%;
  --fan-scale: 1.04;
  --pop-z: 50px;
  --pop-w: clamp(50px, 10.5vw, 74px);
  --pop-glow: drop-shadow(0 0 22px rgba(56, 189, 248, 0.62)) drop-shadow(0 14px 24px rgba(0, 0, 0, 0.4));
  animation-delay: -1.4s;
  z-index: 7;
}

.hp-hero-pop--sd {
  --fan-x: 50%;
  --fan-y: 14%;
  --fan-scale: 1;
  --pop-z: 42px;
  --pop-w: clamp(52px, 11vw, 76px);
  --pop-glow: drop-shadow(0 0 24px rgba(52, 211, 153, 0.6)) drop-shadow(0 14px 24px rgba(0, 0, 0, 0.4));
  animation-delay: -2.8s;
  z-index: 8;
}

.hp-hero-pop--devops {
  --fan-x: 74%;
  --fan-y: 28%;
  --fan-scale: 1.04;
  --pop-z: 50px;
  --pop-w: clamp(50px, 10.5vw, 74px);
  --pop-glow: drop-shadow(0 0 22px rgba(251, 191, 36, 0.62)) drop-shadow(0 14px 24px rgba(0, 0, 0, 0.4));
  animation-delay: -4.2s;
  z-index: 7;
}

.hp-hero-pop--devops-infinity {
  --fan-x: 92%;
  --fan-y: 48%;
  --fan-scale: 1.08;
  --pop-z: 62px;
  --pop-w: clamp(48px, 10vw, 72px);
  --pop-glow: drop-shadow(0 0 22px rgba(244, 114, 182, 0.65)) drop-shadow(0 14px 24px rgba(0, 0, 0, 0.4));
  animation-delay: -5.6s;
  z-index: 6;
}

@keyframes hp-scene-float {
  0%,
  100% {
    transform: translate3d(-50%, -50%, 0) translateY(0);
  }
  50% {
    transform: translate3d(-50%, -50%, 0) translateY(-8px);
  }
}

@keyframes hp-hero-pop-float {
  0%,
  100% {
    transform: translate3d(-50%, -50%, var(--pop-z, 0)) scale(var(--fan-scale, 1));
  }
  50% {
    transform: translate3d(-50%, calc(-50% - 6px), calc(var(--pop-z, 0) + 12px)) scale(var(--fan-scale, 1));
  }
}

@media (prefers-reduced-motion: reduce) {
  .hp-hero-scene__core,
  .hp-hero-pop,
  .hp-hero-tablet__logo-glow {
    animation: none !important;
  }
}

/* ── Products bar ── */
.hp-products {
  padding: clamp(8px, 2vw, 16px) 0 clamp(48px, 6vw, 72px);
}

.hp-products__bar {
  display: grid;
  grid-template-columns: minmax(180px, 1.15fr) repeat(2, minmax(0, 1fr));
  gap: 0;
  align-items: stretch;
  border: 1px solid var(--hp-border);
  border-radius: 12px;
  background: var(--hp-card);
  box-shadow: var(--hp-shadow);
  overflow: hidden;
}

.hp-products__intro {
  padding: 18px 20px;
  border-right: 1px solid var(--hp-border);
}

.hp-products__label {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--hp-violet);
  margin: 0 0 8px;
}

.hp-products__tagline {
  margin: 0;
  font-size: 12px;
  line-height: 1.55;
  color: var(--hp-muted);
}

.hp-product {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 16px 18px;
  border-right: 1px solid var(--hp-border);
  text-decoration: none;
  color: inherit;
  transition: background 0.2s ease;
}

.hp-product:hover {
  background: rgba(255, 255, 255, 0.02);
}

.hp-topic-icon {
  flex-shrink: 0;
  display: block;
  object-fit: contain;
}

.hp-product:last-child {
  border-right: none;
}

.hp-product--scrutin {
  border-top: var(--hp-accent-bar) solid var(--topic-scrutin);
}

.hp-product--ai-search {
  border-top: var(--hp-accent-bar) solid var(--topic-ai-search);
}

.hp-product--scrutin .hp-product__open {
  color: var(--topic-scrutin);
}

.hp-product--ai-search .hp-product__open {
  color: var(--topic-ai-search);
}

.hp-product__name {
  display: block;
  font-family: "Syne", system-ui, sans-serif;
  font-size: 14px;
  font-weight: 700;
  color: var(--hp-text);
}

.hp-product__desc {
  display: block;
  margin-top: 2px;
  font-size: 11px;
  line-height: 1.45;
  color: var(--hp-muted);
}

.hp-product__open {
  margin-top: auto;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 11px;
  color: var(--hp-purple);
}

.hp-product__open--orange {
  color: var(--hp-orange);
}

.hp-products__all {
  display: flex;
  align-items: center;
  padding: 16px 20px;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 11px;
  color: var(--hp-purple);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s ease;
}

.hp-products__all:hover {
  color: #a5b4fc;
}

/* ── Learn ── */
.hp-learn {
  padding: clamp(24px, 4vw, 40px) 0 clamp(28px, 4vw, 40px);
}

.hp-learn__head {
  margin-bottom: 20px;
}

.hp-learn__title {
  font-family: "Syne", system-ui, sans-serif;
  font-size: clamp(1.35rem, 2.8vw, 1.75rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--hp-text);
  max-width: 42ch;
}

.hp-learn__layout {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.hp-learn__groups {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.hp-learn-group {
  padding: 16px 16px 14px;
  border: 1px solid var(--hp-border);
  border-radius: 12px;
  background: var(--hp-card);
  box-shadow: var(--hp-shadow-soft);
}

.hp-learn-group__label {
  margin: 0 0 12px;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--hp-muted);
}

.hp-topic-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

/* Featured */
.hp-featured {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 24px 24px 22px;
  border: 1px solid var(--hp-border);
  border-radius: 12px;
  background:
    radial-gradient(ellipse 55% 45% at 88% 18%, rgba(96, 165, 250, 0.12), transparent 62%),
    radial-gradient(ellipse 90% 70% at 0% 0%, rgba(123, 140, 255, 0.1), transparent 55%),
    var(--hp-card);
  box-shadow: var(--hp-shadow);
  overflow: hidden;
}

.hp-featured--system-design {
  border-top: var(--hp-accent-bar) solid var(--topic-sd);
}

.hp-featured__top,
.hp-featured__banner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(148px, 32%);
  gap: 4px 20px;
  align-items: center;
}

.hp-featured--banner {
  min-height: auto;
}

.hp-featured--banner .hp-featured__desc {
  max-width: 52ch;
}

.hp-featured__copy {
  position: relative;
  z-index: 1;
  min-width: 0;
}

.hp-featured__badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 4px;
  border: 1px solid rgba(96, 165, 250, 0.4);
  background: rgba(96, 165, 250, 0.1);
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--topic-sd);
}

.hp-featured__title {
  margin-top: 14px;
  font-family: "Syne", system-ui, sans-serif;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--hp-text);
}

.hp-featured__desc {
  margin-top: 10px;
  max-width: 36ch;
  font-size: 13px;
  line-height: 1.65;
  color: var(--hp-muted);
}

.hp-featured__visual {
  position: relative;
  align-self: center;
  width: 100%;
  max-width: 240px;
  margin: -6px -10px 0 auto;
  aspect-ratio: 3 / 2;
  display: flex;
  align-items: center;
  justify-content: center;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, #000 72%, transparent 100%);
  mask-image: linear-gradient(180deg, #000 0%, #000 72%, transparent 100%);
}

.hp-featured__visual-glow {
  position: absolute;
  inset: 8% 0 18%;
  background: radial-gradient(ellipse 70% 60% at 55% 45%, rgba(96, 165, 250, 0.28), transparent 72%);
  pointer-events: none;
}

.hp-featured__art {
  position: relative;
  z-index: 1;
  width: 112%;
  max-width: none;
  height: auto;
  margin-right: -6%;
  opacity: 0.95;
  filter: drop-shadow(0 8px 28px rgba(96, 165, 250, 0.15));
}

.hp-featured__links {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: 8px;
  padding-top: 20px;
  border-top: 1px solid var(--hp-border);
  position: relative;
  z-index: 2;
  background: linear-gradient(180deg, transparent, var(--hp-card) 12%);
}

.hp-featured__links--row {
  flex-direction: row;
  gap: 0;
}

.hp-featured__links--row .hp-featured__link {
  flex: 1;
  padding: 14px 12px;
  border-bottom: none;
  border-right: 1px solid var(--hp-border);
}

.hp-featured__links--row .hp-featured__link:last-child {
  border-right: none;
}

.hp-featured__link {
  display: grid;
  grid-template-columns: 36px 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--hp-border);
  font-family: "Syne", system-ui, sans-serif;
  font-size: 14px;
  font-weight: 700;
  color: var(--hp-text);
  text-decoration: none;
  transition: color 0.2s ease;
}

.hp-featured__link:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.hp-featured__link-arrow {
  color: var(--topic-sd);
  font-family: "JetBrains Mono", ui-monospace, monospace;
}

.hp-featured__link:hover {
  color: var(--topic-sd);
}

.hp-rail__item {
  display: grid;
  grid-template-columns: 44px 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  border: 1px solid var(--hp-border);
  border-radius: 10px;
  background: var(--hp-card);
  box-shadow: var(--hp-shadow-soft);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.hp-rail__item--applied-ai {
  border-top: var(--hp-accent-bar) solid var(--topic-ai);
}

.hp-rail__item--devops {
  border-top: var(--hp-accent-bar) solid var(--topic-devops);
}

.hp-rail__item--production {
  border-top: var(--hp-accent-bar) solid var(--topic-prod);
}

.hp-rail__item--kafka {
  border-top: var(--hp-accent-bar) solid var(--topic-kafka);
}

.hp-rail__item--aws-core {
  border-top: var(--hp-accent-bar) solid var(--topic-aws-core);
}

.hp-rail__item--unix {
  border-top: var(--hp-accent-bar) solid var(--topic-unix);
}

.hp-rail__item--java {
  border-top: var(--hp-accent-bar) solid var(--topic-java);
}

.hp-rail__item--service-core {
  border-top: var(--hp-accent-bar) solid var(--topic-service-core);
}

.hp-rail__item--spring {
  border-top: var(--hp-accent-bar) solid var(--topic-spring);
}

.hp-rail__item:hover {
  border-color: var(--hp-hover-border);
  background: var(--hp-hover-bg);
}

.hp-rail__body {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.hp-rail__name {
  font-family: "Syne", system-ui, sans-serif;
  font-size: 15px;
  font-weight: 700;
  color: var(--hp-text);
  line-height: 1.2;
}

.hp-rail__desc {
  font-size: 12px;
  line-height: 1.5;
  color: var(--hp-muted);
}

.hp-rail__arrow {
  flex-shrink: 0;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 14px;
  color: var(--hp-muted);
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity 0.2s ease, transform 0.2s ease, color 0.2s ease;
}

.hp-rail__item:hover .hp-rail__arrow {
  opacity: 1;
  transform: translateX(0);
}

.hp-rail__item--applied-ai:hover .hp-rail__arrow {
  color: var(--topic-ai);
}

.hp-rail__item--devops:hover .hp-rail__arrow {
  color: var(--topic-devops);
}

.hp-rail__item--production:hover .hp-rail__arrow {
  color: var(--topic-prod);
}

.hp-rail__item--kafka:hover .hp-rail__arrow {
  color: var(--topic-kafka);
}

.hp-rail__item--aws-core:hover .hp-rail__arrow {
  color: var(--topic-aws-core);
}

.hp-rail__item--unix:hover .hp-rail__arrow {
  color: var(--topic-unix);
}

.hp-rail__item--java:hover .hp-rail__arrow {
  color: var(--topic-java);
}

.hp-rail__item--service-core:hover .hp-rail__arrow {
  color: var(--topic-service-core);
}

.hp-rail__item--spring:hover .hp-rail__arrow {
  color: var(--topic-spring);
}

/* Footer */
body.site-hub--magazine .hp-footer {
  border-top: 1px solid var(--hp-border);
  background: var(--hp-bg);
  color: var(--hp-muted);
  padding-bottom: 40px;
}

body.site-hub--magazine .hp-footer a {
  color: var(--hp-purple);
}

/* ── Responsive ── */
@media (max-width: 1100px) {
  .hp-products__bar {
    grid-template-columns: 1fr 1fr;
  }

  .hp-products__intro {
    grid-column: 1 / -1;
    border-right: none;
    border-bottom: 1px solid var(--hp-border);
  }

  .hp-product:nth-child(3) {
    border-right: none;
  }
}

@media (max-width: 1100px) {
  .hp-nav__list {
    gap: 4px 14px;
  }

  .hp-nav__link {
    font-size: 12px;
  }
}

@media (max-width: 820px) {
  body.site-hub--magazine .hp-topbar__inner {
    grid-template-columns: 1fr auto;
    grid-template-areas:
      "brand actions"
      "nav nav nav";
    row-gap: 10px;
  }

  body.site-hub--magazine .hp-topbar__inner > .hp-nav {
    justify-self: center;
    width: 100%;
  }

  body.site-hub--magazine .hp-topbar .site-topbar__mid,
  body.site-hub--magazine .hp-topbar .hp-topbar__search {
    width: auto;
    max-width: min(280px, 42vw);
    flex: 1 1 auto;
  }

  .hp-hero__grid {
    grid-template-columns: 1fr;
  }

  .hp-hero__art {
    order: -1;
    justify-content: center;
  }

  .hp-hero-scene {
    width: min(96vw, 640px);
    aspect-ratio: 3 / 2;
    margin-top: 16px;
  }

  .hp-hero-scene__core {
    top: 64%;
    width: 100%;
    max-width: none;
  }

  .hp-hero-pop--ai {
    --fan-x: 10%;
    --fan-y: 46%;
    --pop-z: 46px;
    --pop-w: clamp(40px, 9vw, 58px);
  }

  .hp-hero-pop--kafka {
    --fan-x: 28%;
    --fan-y: 30%;
    --pop-z: 38px;
    --pop-w: clamp(42px, 9.5vw, 60px);
  }

  .hp-hero-pop--sd {
    --fan-x: 50%;
    --fan-y: 16%;
    --pop-z: 32px;
    --pop-w: clamp(44px, 10vw, 62px);
  }

  .hp-hero-pop--devops {
    --fan-x: 72%;
    --fan-y: 30%;
    --pop-z: 38px;
    --pop-w: clamp(42px, 9.5vw, 60px);
  }

  .hp-hero-pop--devops-infinity {
    --fan-x: 90%;
    --fan-y: 46%;
    --pop-z: 46px;
    --pop-w: clamp(40px, 9vw, 58px);
  }

  .hp-hero__title {
    max-width: none;
  }

  .hp-learn__groups {
    grid-template-columns: 1fr;
  }

  .hp-featured__top,
  .hp-featured__banner {
    grid-template-columns: 1fr minmax(120px, 34%);
  }

  .hp-featured__visual {
    max-width: 200px;
  }
}

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

@media (max-width: 720px) {
  .hp-featured__top,
  .hp-featured__banner {
    grid-template-columns: 1fr;
  }

  .hp-featured__links--row {
    flex-direction: column;
  }

  .hp-featured__links--row .hp-featured__link {
    border-right: none;
    border-bottom: 1px solid var(--hp-border);
  }

  .hp-featured__links--row .hp-featured__link:last-child {
    border-bottom: none;
  }

  .hp-featured__visual {
    max-width: min(280px, 88%);
    margin: 8px auto 0;
    -webkit-mask-image: none;
    mask-image: none;
  }

  .hp-featured__desc {
    max-width: none;
  }
}

@media (max-width: 640px) {
  .hp-nav__list {
    gap: 8px 14px;
  }

  .hp-nav__link {
    font-size: 12px;
  }

  .hp-products__bar {
    grid-template-columns: 1fr;
  }

  .hp-product {
    border-right: none;
    border-bottom: 1px solid var(--hp-border);
  }

  .hp-product:last-child {
    border-bottom: none;
  }

  .hp-rail__item {
    grid-template-columns: 44px 1fr auto;
    padding: 14px 16px;
  }

  .hp-rail__arrow {
    opacity: 0.55;
    transform: none;
  }
}

@media (max-width: 480px) {
  .hp-nav {
    display: none;
  }

  body.site-hub--magazine .hp-topbar__inner {
    grid-template-areas: "brand actions";
    grid-template-columns: 1fr auto;
  }
}

/* ── Light theme ── */
html[data-hp-theme="light"] body.site-hub--magazine {
  color-scheme: light;
  --hp-bg: #f5f2eb;
  --hp-surface: #ebe6dc;
  --hp-card: #fffdf8;
  --hp-border: rgba(26, 22, 18, 0.1);
  --hp-text: #1a1612;
  --hp-muted: #6b6560;
  --hp-violet: #5c6fd6;
  --hp-amber: #d97706;
  --hp-green: #059669;
  --hp-cyan: #0284c7;
  --hp-coral: #c2410c;
  --hp-orange-dim: rgba(217, 119, 6, 0.12);
  --hp-purple-dim: rgba(92, 111, 214, 0.1);
  --hp-hover-bg: #f0ebe3;
  --hp-hover-border: rgba(92, 111, 214, 0.35);
  --hp-shadow: 0 1px 0 rgba(255, 255, 255, 0.85) inset, 0 10px 36px rgba(26, 22, 18, 0.06);
  --hp-shadow-soft: 0 6px 24px rgba(26, 22, 18, 0.05);
  --topic-sd: #0284c7;
  --topic-ai: #16a34a;
  --topic-devops: #2563eb;
  --topic-prod: #7c3aed;
  --topic-kafka: #ea580c;
  --topic-aws-core: #d97706;
  --topic-unix: #16a34a;
  --topic-java: #d97706;
  --topic-service-core: #0284c7;
  --topic-spring: #4a8f2a;
  --topic-ai-search: #0891b2;
  --topic-scrutin: #ca8a04;
  --hp-search-icon: #0d9488;
}

html[data-hp-theme="light"] .hp-nav__link {
  color: rgba(26, 22, 18, 0.68);
}

html[data-hp-theme="light"] .hp-nav__link:has(.hp-nav__chev) {
  text-decoration-color: rgba(26, 22, 18, 0.2);
}

html[data-hp-theme="light"] .hp-nav__link:hover {
  color: var(--hp-text);
}

html[data-hp-theme="light"] .hp-hero::before {
  background: radial-gradient(ellipse 70% 60% at 60% 50%, rgba(92, 111, 214, 0.14), transparent 68%);
}

html[data-hp-theme="light"] .hp-hero-pop img {
  filter: drop-shadow(0 14px 24px rgba(26, 22, 18, 0.2)) drop-shadow(0 4px 8px rgba(26, 22, 18, 0.12));
}

html[data-hp-theme="light"] body.site-hub--magazine .hp-btn--primary {
  color: #fffdf8;
}

html[data-hp-theme="light"] body.site-hub--magazine .hp-btn--primary:hover {
  background: #b45309;
  border-color: #b45309;
}

html[data-hp-theme="light"] body.site-hub--magazine .hp-product:hover {
  background: rgba(26, 22, 18, 0.03);
}

html[data-hp-theme="light"] body.site-hub--magazine .hp-featured {
  background:
    radial-gradient(ellipse 55% 45% at 88% 18%, rgba(37, 99, 235, 0.1), transparent 62%),
    radial-gradient(ellipse 90% 70% at 0% 0%, rgba(92, 111, 214, 0.08), transparent 55%),
    var(--hp-card);
}

html[data-hp-theme="light"] .hp-featured__visual-glow {
  background: radial-gradient(ellipse 70% 60% at 55% 45%, rgba(37, 99, 235, 0.14), transparent 72%);
}

html[data-hp-theme="light"] .hp-featured__art {
  filter: drop-shadow(0 8px 24px rgba(37, 99, 235, 0.12));
}

html[data-hp-theme="light"] body.site-hub--magazine .hp-products__all:hover {
  color: #4338ca;
}

html[data-hp-theme="light"] body.site-hub--magazine .site-search-trigger {
  background: var(--hp-card);
  border-color: var(--hp-border);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.9),
    0 1px 3px rgba(26, 22, 18, 0.06);
}

html[data-hp-theme="light"] body.site-hub--magazine .site-search-trigger:hover {
  background: var(--hp-hover-bg);
  border-color: rgba(13, 148, 136, 0.35);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.9),
    0 0 0 3px rgba(13, 148, 136, 0.1);
}

html[data-hp-theme="light"] body.site-hub--magazine .site-search-trigger__kbd {
  background: var(--hp-bg);
}