/*
 * Homepage-only presentation layer.
 *
 * This stylesheet intentionally lives behind `body.home-page` so that the
 * standalone article pages keep their existing reading layout unchanged.
 * Visual direction follows the supplied editorial reference with a crisp,
 * restrained blue accent and cool neutral surfaces.
 */

body.home-page {
  --home-bg: #fafcff;
  --home-bg-2: #ffffff;
  --home-bg-3: #f4f8fd;
  --home-bg-4: #eaf1fa;
  --home-line: #e3eaf3;
  --home-line-2: #cbd7e6;
  --home-text: #172033;
  --home-text-2: #475569;
  --home-text-3: #607088;
  --home-accent: #2563eb;
  --home-accent-deep: #1d4ed8;
  --home-accent-ink: rgba(37, 99, 235, 0.12);
  --home-mono: "JetBrains Mono", "SFMono-Regular", Menlo, Consolas, monospace;
  --home-sans: Manrope, "Noto Sans SC", -apple-system, BlinkMacSystemFont,
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --home-radius: 14px;
  --home-radius-sm: 9px;
  --home-nav-h: 64px;
  --home-maxw: 1120px;
  --home-ease: cubic-bezier(0.22, 0.61, 0.36, 1);

  min-height: 100vh;
  margin: 0;
  overflow-x: clip;
  color: var(--home-text);
  background: var(--home-bg);
  font-family: var(--home-sans);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.home-page *,
body.home-page *::before,
body.home-page *::after {
  box-sizing: border-box;
}

body.home-page a {
  color: inherit;
  text-decoration: none;
}

body.home-page img {
  display: block;
  max-width: 100%;
}

body.home-page ul,
body.home-page ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

body.home-page button {
  border: 0;
  color: inherit;
  background: none;
  font: inherit;
  cursor: pointer;
}

body.home-page ::selection {
  color: #fff;
  background: var(--home-accent);
}

body.home-page :focus-visible {
  outline: 2px solid var(--home-accent);
  outline-offset: 3px;
  border-radius: 4px;
}

body.home-page.lock {
  overflow: hidden;
}

body.home-page section[id] {
  scroll-margin-top: calc(var(--home-nav-h) + 14px);
}

body.home-page .container {
  width: min(100%, var(--home-maxw));
  margin-inline: auto;
  padding-inline: 24px;
}

body.home-page main {
  min-height: 60vh;
}

/* Header */
body.home-page .site-header {
  position: sticky;
  z-index: 50;
  top: 0;
  right: auto;
  left: auto;
  width: 100%;
  height: var(--home-nav-h);
  border-bottom: 1px solid var(--home-line);
  background: rgba(250, 252, 255, 0.9);
  box-shadow: none;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

body.home-page .nav {
  display: flex;
  height: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

body.home-page .brand {
  display: inline-flex;
  align-items: baseline;
  gap: 2px;
  color: var(--home-text);
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

body.home-page .brand .dot {
  color: var(--home-accent);
}

body.home-page .brand .brand-dev {
  margin-left: 2px;
  color: var(--home-text-3);
  font-family: var(--home-mono);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.5px;
}

body.home-page .nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
}

body.home-page .nav-links a {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  color: var(--home-text-2);
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s var(--home-ease);
}

body.home-page .nav-links a .idx,
body.home-page .mobile-menu a .idx {
  color: var(--home-text-3);
  font-family: var(--home-mono);
  font-size: 14px;
}

body.home-page .nav-links a:hover,
body.home-page .nav-links a.active,
body.home-page .nav-links a.is-active {
  color: var(--home-text);
}

body.home-page .nav-links a.active::after,
body.home-page .nav-links a.is-active::after {
  content: "";
  position: absolute;
  right: 14px;
  bottom: 4px;
  left: 14px;
  height: 2px;
  border-radius: 2px;
  background: var(--home-accent);
}

body.home-page .nav-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

body.home-page .btn-ghost {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--home-line-2);
  border-radius: 8px;
  color: var(--home-text);
  background: transparent;
  font-size: 14px;
  font-weight: 600;
  line-height: 1;
  transition: border-color 0.2s var(--home-ease), color 0.2s var(--home-ease),
    background 0.2s var(--home-ease), transform 0.2s var(--home-ease);
}

body.home-page .btn-ghost svg {
  display: block;
  width: 16px;
  height: 16px;
  flex: 0 0 16px;
}

body.home-page .btn-ghost:hover {
  border-color: var(--home-accent);
  color: var(--home-accent);
  background: var(--home-bg-2);
  transform: translateY(-1px);
}

body.home-page .nav-burger {
  display: none;
  width: 40px;
  height: 40px;
  place-items: center;
  border: 1px solid var(--home-line-2);
  border-radius: 8px;
  color: var(--home-text);
}

body.home-page .nav-burger svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
}

body.home-page .mobile-menu {
  display: none;
  position: fixed;
  z-index: 49;
  top: var(--home-nav-h);
  right: 0;
  left: 0;
  padding: 8px 20px 14px;
  border-bottom: 1px solid var(--home-line);
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 20px 40px rgba(23, 50, 92, 0.07);
}

body.home-page .mobile-menu.open {
  display: block;
}

body.home-page .mobile-menu a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 8px;
  border-bottom: 1px solid var(--home-line);
  color: var(--home-text-2);
  font-size: 15px;
}

body.home-page .mobile-menu a:last-child {
  border-bottom: 0;
}

body.home-page .mobile-menu a.active,
body.home-page .mobile-menu a.is-active {
  color: var(--home-accent);
  font-weight: 700;
}

/* Shared controls and section typography */
body.home-page .btn-primary,
body.home-page .btn-secondary {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
}

body.home-page .btn-primary {
  border: 1px solid var(--home-accent);
  color: #fff;
  background: var(--home-accent);
  transition: background 0.2s var(--home-ease), transform 0.2s var(--home-ease);
}

body.home-page .btn-primary:hover {
  background: var(--home-accent-deep);
  transform: translateY(-1px);
}

body.home-page .btn-secondary {
  border: 1px solid var(--home-line-2);
  color: var(--home-text);
  background: transparent;
  transition: border-color 0.2s var(--home-ease), color 0.2s var(--home-ease),
    background 0.2s var(--home-ease);
}

body.home-page .btn-secondary:hover {
  border-color: var(--home-accent);
  color: var(--home-accent);
  background: var(--home-bg-2);
}

body.home-page .btn-primary svg,
body.home-page .btn-secondary svg,
body.home-page .btn-arrow svg {
  width: 14px;
  height: 14px;
}

body.home-page .btn-arrow {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--home-text-2);
  font-size: 14px;
  font-weight: 600;
  transition: color 0.2s;
}

body.home-page .btn-arrow svg {
  transition: transform 0.25s var(--home-ease);
}

body.home-page .btn-arrow:hover {
  color: var(--home-accent);
}

body.home-page .btn-arrow:hover svg {
  transform: translateX(4px);
}

body.home-page .section-head {
  padding: 64px 0 0;
}

body.home-page .sec-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--home-accent);
  font-family: var(--home-mono);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 1.6px;
}

body.home-page .sec-label .num {
  color: var(--home-text-3);
}

body.home-page .sec-label::after {
  content: "";
  width: 44px;
  height: 1px;
  background: var(--home-line-2);
}

body.home-page .section-title {
  margin: 12px 0 8px;
  color: var(--home-text);
  font-size: clamp(28px, 3.6vw, 36px);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

body.home-page .section-desc {
  max-width: 660px;
  margin: 0;
  color: var(--home-text-2);
  font-size: 16px;
  line-height: 1.7;
  text-wrap: balance;
}

body.home-page .chip {
  display: inline-flex;
  align-items: center;
  padding: 2px 9px;
  border: 1px solid var(--home-line-2);
  border-radius: 999px;
  color: var(--home-accent);
  background: transparent;
  font-family: var(--home-mono);
  font-size: 14px;
  line-height: 1.55;
  letter-spacing: 0.2px;
}

body.home-page .chip.plain {
  border-color: var(--home-line);
  color: var(--home-text-2);
  background: var(--home-bg-2);
}

/* Hero */
body.home-page .hero {
  position: relative;
  min-height: 0;
  padding: 78px 0 54px;
  overflow: visible;
  background: var(--home-bg);
}

body.home-page .hero::before,
body.home-page .hero::after {
  content: none;
}

body.home-page .hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 48px;
}

body.home-page .hero-copy {
  position: static;
  top: auto;
  grid-column: auto;
  padding-left: 0;
}

body.home-page .hero h1 {
  max-width: none;
  margin: 0;
  color: var(--home-text);
  font-family: var(--home-sans);
  font-size: clamp(38px, 5vw, 58px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.025em;
  text-wrap: balance;
}

body.home-page .hero h1 .grad {
  color: var(--home-text);
}

body.home-page .role-line {
  display: flex;
  min-height: 24px;
  align-items: center;
  gap: 8px;
  margin: 0 0 10px;
  color: var(--home-text-2);
  font-family: var(--home-mono);
  font-size: 15px;
}

body.home-page .role-line .rl-p {
  flex: 0 0 auto;
  color: var(--home-text-3);
}

body.home-page .role-line .rl-text {
  color: var(--home-text-2);
  font-weight: 600;
}

body.home-page .hero-sub {
  max-width: 500px;
  margin: 16px 0 0;
  color: var(--home-text-2);
  font-size: 16px;
  line-height: 1.7;
  text-wrap: pretty;
}

body.home-page .hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

body.home-page .hero-stats {
  display: grid;
  max-width: 560px;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin: 40px 0 0;
  padding-left: 0;
  padding-top: 20px;
  border-top: 1px solid var(--home-line);
}

body.home-page .stat .num {
  margin: 0;
  color: var(--home-text);
  font-size: 23px;
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.01em;
}

body.home-page .stat .num em {
  color: var(--home-accent);
  font-style: normal;
}

body.home-page .stat .lbl {
  margin: 3px 0 0;
  color: var(--home-text-3);
  font-size: 14px;
}

/* Terminal */
body.home-page .term {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--home-line-2);
  border-radius: var(--home-radius);
  background: var(--home-bg-2);
  box-shadow: 0 24px 56px rgba(23, 50, 92, 0.09);
}

body.home-page .term::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: radial-gradient(400px 200px at 85% -20%, rgba(37, 99, 235, 0.055), transparent 70%);
}

body.home-page .term-bar,
body.home-page .term-body,
body.home-page .term-status {
  position: relative;
  z-index: 1;
}

body.home-page .term-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--home-line);
  background: var(--home-bg-3);
}

body.home-page .term-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}

body.home-page .term-dot.r { background: #ff5f57; }
body.home-page .term-dot.y { background: #febc2e; }
body.home-page .term-dot.g { background: #28c840; }

body.home-page .term-title {
  margin-left: 10px;
  color: var(--home-text-3);
  font-family: var(--home-mono);
  font-size: 14px;
}

body.home-page .term-session {
  margin-left: auto;
  padding: 2px 7px;
  border: 1px solid var(--home-line-2);
  border-radius: 4px;
  color: var(--home-text-3);
  font-family: var(--home-mono);
  font-size: 14px;
  line-height: 1.35;
  letter-spacing: 0.3px;
}

body.home-page .term-body {
  display: flex;
  min-height: 330px;
  justify-content: center;
  flex-direction: column;
  padding: 26px 28px 24px;
  font-family: var(--home-mono);
  font-size: 14px;
  line-height: 1.76;
}

body.home-page .term-body .line,
body.home-page .term-line {
  display: flex;
  gap: 8px;
  white-space: pre-wrap;
  word-break: break-word;
}

body.home-page .term-body .p,
body.home-page .term-prompt {
  min-width: 14px;
  flex: 0 0 auto;
  color: var(--home-text-3);
  text-align: right;
  user-select: none;
}

body.home-page .term-body .c,
body.home-page .term-command {
  color: var(--home-text);
}

body.home-page .term-body .c.g,
body.home-page .term-output {
  color: var(--home-accent);
}

body.home-page .term-cursor {
  display: inline-block;
  width: 9px;
  height: 16px;
  margin-left: 2px;
  background: var(--home-accent);
  vertical-align: -3px;
  animation: home-blink 1.1s steps(1) infinite;
}

body.home-page .term-status {
  display: flex;
  min-height: 36px;
  align-items: center;
  gap: 16px;
  padding: 7px 16px;
  border-top: 1px solid var(--home-line);
  color: var(--home-text-3);
  background: var(--home-bg-3);
  font-family: var(--home-mono);
  font-size: 14px;
  line-height: 1.4;
}

body.home-page .term-ready {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--home-text-2);
}

body.home-page .term-ready i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--home-accent);
  box-shadow: 0 0 0 3px var(--home-accent-ink);
}

body.home-page .term-encoding {
  margin-left: auto;
}

body.home-page .hero-grid .term::after {
  content: "";
  position: absolute;
  z-index: 0;
  right: 0;
  bottom: 36px;
  width: 126px;
  height: 98px;
  pointer-events: none;
  background-image: linear-gradient(rgba(37, 99, 235, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37, 99, 235, 0.05) 1px, transparent 1px);
  background-size: 14px 14px;
  -webkit-mask-image: linear-gradient(135deg, transparent 2%, #000 100%);
  mask-image: linear-gradient(135deg, transparent 2%, #000 100%);
}

/* Product board: a visual, non-terminal snapshot of the way ideas become products. */
body.home-page .product-board {
  position: relative;
  width: 100%;
  overflow: hidden;
  border: 1px solid var(--home-line-2);
  border-radius: 16px;
  background: var(--home-bg-2);
  box-shadow: 0 24px 56px rgba(23, 50, 92, 0.1);
  transition: border-color 0.28s var(--home-ease), box-shadow 0.28s var(--home-ease),
    transform 0.28s var(--home-ease);
}

body.home-page .product-board:hover {
  border-color: rgba(37, 99, 235, 0.3);
  box-shadow: 0 28px 64px rgba(23, 50, 92, 0.13);
  transform: translateY(-2px);
}

body.home-page .product-board::after {
  content: "";
  position: absolute;
  z-index: 0;
  top: 54px;
  right: -48px;
  width: 180px;
  height: 180px;
  border: 38px solid rgba(37, 99, 235, 0.04);
  border-radius: 50%;
  pointer-events: none;
}

body.home-page .product-board-ui {
  position: relative;
  z-index: 1;
  min-height: 410px;
}

body.home-page .board-bar {
  display: flex;
  min-height: 54px;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--home-line);
  background: rgba(255, 255, 255, 0.92);
}

body.home-page .board-brand,
body.home-page .board-status,
body.home-page .board-caption,
body.home-page .panel-head,
body.home-page .ready-score {
  font-family: var(--home-mono);
  font-size: 14px;
}

body.home-page .board-brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--home-text-2);
  font-weight: 600;
  letter-spacing: 0.35px;
}

body.home-page .board-brand i {
  display: grid;
  width: 27px;
  height: 27px;
  place-items: center;
  border-radius: 8px;
  color: #fff;
  background: var(--home-accent);
  font-family: var(--home-sans);
  font-size: 14px;
  font-style: normal;
  font-weight: 800;
}

body.home-page .board-status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--home-text-3);
  letter-spacing: 0.3px;
}

body.home-page .board-status i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--home-accent);
  box-shadow: 0 0 0 4px var(--home-accent-ink);
}

body.home-page .board-stage {
  display: grid;
  min-height: 356px;
  grid-template-columns: 54px minmax(0, 1fr);
  background: linear-gradient(145deg, #fbfdff 0%, #f4f8fe 100%);
}

body.home-page .board-rail {
  display: flex;
  align-items: center;
  flex-direction: column;
  gap: 10px;
  padding: 16px 9px;
  border-right: 1px solid var(--home-line);
  background: rgba(255, 255, 255, 0.76);
}

body.home-page .rail-tool {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid transparent;
  border-radius: 9px;
  color: var(--home-text-3);
  background: transparent;
}

body.home-page .rail-tool svg {
  width: 18px;
  height: 18px;
}

body.home-page .rail-tool.is-active {
  border-color: rgba(37, 99, 235, 0.16);
  color: var(--home-accent);
  background: rgba(37, 99, 235, 0.08);
}

body.home-page .board-canvas {
  position: relative;
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: 16px 18px 18px;
}

body.home-page .board-caption {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: var(--home-text-3);
  letter-spacing: 0.55px;
}

body.home-page .board-caption span:last-child {
  color: var(--home-accent);
}

body.home-page .product-loop {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 14px 0 16px;
}

body.home-page .loop-line {
  position: absolute;
  top: 20px;
  right: 11%;
  left: 11%;
  height: 2px;
  background: linear-gradient(90deg, var(--home-accent) 0 67%, var(--home-line-2) 67% 100%);
}

body.home-page .loop-node {
  position: relative;
  z-index: 1;
  display: flex;
  min-width: 0;
  align-items: center;
  flex-direction: column;
  gap: 7px;
  color: var(--home-text-3);
}

body.home-page .loop-node i {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid var(--home-line-2);
  border-radius: 13px;
  background: #fff;
  box-shadow: 0 6px 14px rgba(23, 50, 92, 0.06);
}

body.home-page .loop-node svg {
  width: 20px;
  height: 20px;
}

body.home-page .loop-node b {
  font-size: 14px;
  font-weight: 600;
}

body.home-page .loop-node.is-done,
body.home-page .loop-node.is-current {
  color: var(--home-accent);
}

body.home-page .loop-node.is-done i {
  border-color: rgba(37, 99, 235, 0.2);
  background: #f2f7ff;
}

body.home-page .loop-node.is-current i {
  border-color: var(--home-accent);
  color: #fff;
  background: var(--home-accent);
  box-shadow: 0 9px 20px rgba(37, 99, 235, 0.22);
}

body.home-page .board-panels {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  gap: 12px;
}

body.home-page .signal-panel,
body.home-page .prototype-panel {
  min-width: 0;
  height: 126px;
  padding: 12px;
  border: 1px solid var(--home-line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 10px 24px rgba(23, 50, 92, 0.05);
}

body.home-page .panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  color: var(--home-text-3);
  line-height: 1.35;
}

body.home-page .panel-head b {
  color: var(--home-accent);
  font-weight: 600;
}

body.home-page .signal-visual {
  display: flex;
  height: 52px;
  align-items: end;
  gap: 7px;
  margin-top: 7px;
  padding: 0 4px 4px;
  border-bottom: 1px solid var(--home-line);
}

body.home-page .signal-visual span {
  width: 100%;
  height: var(--h);
  min-height: 8px;
  border-radius: 4px 4px 2px 2px;
  background: linear-gradient(180deg, #70a5ff, var(--home-accent));
  opacity: 0.86;
}

body.home-page .signal-visual span:nth-child(2n) {
  opacity: 0.55;
}

body.home-page .signal-foot {
  display: flex;
  min-width: 0;
  align-items: center;
  margin-top: 7px;
  color: var(--home-text-3);
  font-size: 14px;
  line-height: 1;
}

body.home-page .signal-foot i {
  width: 18px;
  height: 18px;
  margin-right: -5px;
  border: 2px solid #fff;
  border-radius: 50%;
  background: #c9daf7;
}

body.home-page .signal-foot i:nth-child(2) { background: #8eb6fb; }
body.home-page .signal-foot i:nth-child(3) { margin-right: 8px; background: var(--home-accent); }

body.home-page .signal-foot span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

body.home-page .prototype-panel {
  display: flex;
  flex-direction: column;
}

body.home-page .proto-top {
  display: flex;
  gap: 4px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--home-line);
}

body.home-page .proto-top span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--home-line-2);
}

body.home-page .proto-top span:first-child { background: var(--home-accent); }

body.home-page .proto-body {
  display: grid;
  flex: 1;
  grid-template-columns: 0.9fr 1.1fr;
  align-items: center;
  gap: 10px;
  padding: 10px 0 8px;
}

body.home-page .proto-copy,
body.home-page .proto-visual {
  display: flex;
  flex-direction: column;
}

body.home-page .proto-copy {
  gap: 7px;
}

body.home-page .proto-copy i {
  height: 5px;
  border-radius: 999px;
  background: var(--home-line-2);
}

body.home-page .proto-copy i:nth-child(2) { width: 78%; }
body.home-page .proto-copy i:nth-child(3) { width: 56%; background: rgba(37, 99, 235, 0.35); }

body.home-page .proto-visual {
  position: relative;
  height: 50px;
  justify-content: end;
  overflow: hidden;
  border-radius: 8px;
  background: linear-gradient(145deg, #e4edfb, #f4f8ff);
}

body.home-page .proto-visual::before {
  content: "";
  position: absolute;
  top: 9px;
  right: 10px;
  width: 24px;
  height: 24px;
  border: 6px solid rgba(37, 99, 235, 0.18);
  border-radius: 50%;
}

body.home-page .proto-visual i {
  height: 17px;
  border-radius: 70% 70% 0 0;
  background: linear-gradient(90deg, #8eb6fb, var(--home-accent));
  clip-path: polygon(0 100%, 23% 38%, 43% 72%, 66% 18%, 100% 100%);
}

body.home-page .proto-actions {
  display: flex;
  gap: 6px;
}

body.home-page .proto-actions span {
  width: 42px;
  height: 6px;
  border-radius: 999px;
  background: var(--home-accent);
}

body.home-page .proto-actions span:last-child {
  width: 28px;
  background: var(--home-line-2);
}

body.home-page .readiness-row {
  display: grid;
  min-width: 0;
  grid-template-columns: 34px minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  margin-top: 12px;
  padding: 9px 11px;
  border: 1px solid rgba(37, 99, 235, 0.15);
  border-radius: 11px;
  background: rgba(237, 244, 255, 0.9);
}

body.home-page .ready-check {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border-radius: 10px;
  color: #fff;
  background: var(--home-accent);
}

body.home-page .ready-check svg {
  width: 20px;
  height: 20px;
}

body.home-page .ready-copy {
  display: flex;
  min-width: 0;
  flex-direction: column;
  line-height: 1.35;
}

body.home-page .ready-copy b {
  overflow: hidden;
  color: var(--home-text);
  font-size: 14px;
  font-weight: 700;
  text-overflow: ellipsis;
  white-space: nowrap;
}

body.home-page .ready-copy i {
  overflow: hidden;
  color: var(--home-text-3);
  font-size: 14px;
  font-style: normal;
  text-overflow: ellipsis;
  white-space: nowrap;
}

body.home-page .ready-score {
  color: var(--home-accent);
  font-weight: 700;
}

/* Skill strip */
body.home-page .skills-strip {
  margin-top: 0;
  padding: 20px 0;
  border-top: 1px solid var(--home-line);
  border-bottom: 1px solid var(--home-line);
  background: var(--home-bg-2);
}

body.home-page .skills-strip .container {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 24px;
}

body.home-page .strip-lbl {
  flex: 0 0 auto;
  color: var(--home-text-3);
  font-family: var(--home-mono);
  font-size: 14px;
  letter-spacing: 1px;
}

body.home-page .strip-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* Projects */
body.home-page #work {
  padding-bottom: 52px;
}

body.home-page .project-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  padding: 28px 0 0;
}

body.home-page .project-grid > .reveal {
  display: flex;
  min-width: 0;
}

body.home-page .project-grid > .reveal > .proj-card {
  flex: 1;
}

body.home-page .proj-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--home-line);
  border-radius: 12px;
  background: var(--home-bg-2);
  transform-style: preserve-3d;
  will-change: transform;
  transition: transform 0.26s var(--home-ease), border-color 0.26s var(--home-ease),
    box-shadow 0.26s var(--home-ease);
}

body.home-page .proj-card:hover {
  border-color: var(--home-line-2);
  box-shadow: 0 18px 38px rgba(23, 50, 92, 0.09);
}

body.home-page:not(.ef-tilt) .proj-card:hover {
  transform: translateY(-3px);
}

body.home-page .proj-cover {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: var(--home-bg-4);
}

body.home-page .proj-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.78) contrast(1.02) brightness(1.02);
  transition: transform 0.6s var(--home-ease), filter 0.6s var(--home-ease);
}

body.home-page .proj-cover img.project-cover-focus-left {
  object-position: 18% center;
  filter: saturate(0.92) contrast(1.03) brightness(1.02);
}

body.home-page .proj-cover img.project-cover-vivid {
  filter: saturate(0.92) contrast(1.02) brightness(1.02);
}

body.home-page .proj-card:hover .proj-cover img {
  transform: scale(1.05);
  filter: saturate(0.96) contrast(1.02) brightness(1.03);
}

body.home-page .proj-card:hover .proj-cover img.project-cover-focus-left {
  filter: saturate(1) contrast(1.03) brightness(1.03);
}

body.home-page .proj-card:hover .proj-cover img.project-cover-vivid {
  filter: saturate(1) contrast(1.02) brightness(1.03);
}

body.home-page .proj-body {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 9px;
  padding: 19px 20px 18px;
}

body.home-page .proj-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

body.home-page .proj-title {
  margin: 0;
  color: var(--home-text);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.015em;
  text-wrap: pretty;
}

body.home-page .proj-desc {
  display: -webkit-box;
  margin: 0;
  overflow: hidden;
  color: var(--home-text-2);
  font-size: 15px;
  line-height: 1.65;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

body.home-page .proj-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--home-line);
  color: var(--home-text-3);
  font-family: var(--home-mono);
  font-size: 14px;
}

body.home-page .proj-foot > :last-child {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

body.home-page .proj-foot .gh {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 6px;
  color: var(--home-text-2);
  transition: color 0.2s;
}

body.home-page .proj-foot .gh:hover {
  color: var(--home-accent);
}

body.home-page .proj-foot .gh svg {
  width: 14px;
  height: 14px;
}

body.home-page .scanline {
  position: absolute;
  z-index: 2;
  top: 0;
  right: 0;
  left: 0;
  display: none;
  height: 45%;
  pointer-events: none;
  background: linear-gradient(180deg, transparent, rgba(37, 99, 235, 0.1), transparent);
  transform: translateY(-130%);
}

body.home-page.ef-tilt .scanline {
  display: block;
}

body.home-page.ef-tilt .proj-card {
  transform: perspective(900px) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg));
  transition: transform 0.18s var(--home-ease), border-color 0.26s var(--home-ease),
    box-shadow 0.26s var(--home-ease);
}

body.home-page.ef-tilt .proj-card:hover .scanline {
  transform: translateY(230%);
  transition: transform 0.8s var(--home-ease);
}

/* Articles */
body.home-page .articles-band {
  margin-top: 0;
  border-top: 1px solid var(--home-line);
  border-bottom: 1px solid var(--home-line);
  background: var(--home-bg-3);
}

body.home-page .articles-band .container {
  padding-bottom: 44px;
}

body.home-page .article-section-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 260px;
  align-items: end;
  gap: 48px;
  padding-top: 56px;
  padding-bottom: 18px;
}

body.home-page .article-head-aside {
  padding: 2px 0 3px;
}

body.home-page .article-more {
  display: flex;
  width: max-content;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  color: var(--home-accent);
  font-size: 14px;
  font-weight: 700;
}

body.home-page .article-more span {
  transition: transform 0.24s var(--home-ease);
}

body.home-page .article-more:hover span {
  transform: translate(3px, -3px);
}

body.home-page .article-list {
  display: flex;
  flex-direction: column;
  padding-top: 0;
}

body.home-page .art-row {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr) 80px;
  align-items: center;
  gap: 24px;
  padding: 24px 0;
  border-bottom: 1px solid var(--home-line);
  transition: transform 0.26s var(--home-ease);
}

body.home-page .art-row:last-child {
  border-bottom: 0;
}

body.home-page .art-row:hover,
body.home-page .art-row.reveal.in:hover {
  transform: translateX(4px);
}

body.home-page .art-thumb {
  width: 220px;
  overflow: hidden;
  flex: 0 0 auto;
  aspect-ratio: 16 / 9;
  border-radius: 10px;
  background: var(--home-bg-4);
}

body.home-page .art-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.9) contrast(1.02) brightness(1.02);
  transition: transform 0.6s var(--home-ease), filter 0.6s var(--home-ease);
}

body.home-page .art-row:hover .art-thumb img {
  transform: scale(1.05);
  filter: saturate(0.96) contrast(1.02) brightness(1.03);
}

body.home-page .art-body {
  display: flex;
  min-width: 0;
  flex: 1;
  flex-direction: column;
  gap: 7px;
}

body.home-page .art-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 14px;
  color: var(--home-text-3);
  font-family: var(--home-mono);
  font-size: 14px;
}

body.home-page .art-title {
  margin: 0;
  color: var(--home-text);
  font-size: 21px;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: -0.018em;
  text-wrap: pretty;
  transition: color 0.2s;
}

body.home-page .art-row:hover .art-title {
  color: var(--home-accent);
}

body.home-page .art-excerpt {
  display: -webkit-box;
  margin: 0;
  overflow: hidden;
  color: var(--home-text-2);
  max-width: 640px;
  font-size: 15px;
  line-height: 1.65;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

body.home-page .art-read {
  align-self: flex-start;
  font-size: 14px;
}

body.home-page .art-side {
  display: flex;
  min-height: 92px;
  align-items: flex-end;
  justify-content: space-between;
  flex-direction: column;
  padding: 2px 0;
}

body.home-page .art-index {
  color: var(--home-text-3);
  font-family: var(--home-mono);
  font-size: 14px;
  letter-spacing: 0.5px;
}

body.home-page .art-go {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid var(--home-line-2);
  border-radius: 50%;
  color: var(--home-text-2);
  background: var(--home-bg-2);
  font-size: 16px;
  line-height: 1;
  transition: color 0.24s var(--home-ease), background 0.24s var(--home-ease),
    border-color 0.24s var(--home-ease), transform 0.24s var(--home-ease);
}

body.home-page .art-row:hover .art-go {
  border-color: var(--home-accent);
  color: #fff;
  background: var(--home-accent);
  transform: translate(2px, -2px);
}

/* Full article archive */
body.home-page.article-index-page main {
  background: var(--home-bg);
}

body.home-page .article-index-list {
  padding-bottom: 88px;
}

body.home-page .article-index-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 400px);
  align-items: end;
  gap: 80px;
  padding: 104px 0 62px;
  border-bottom: 1px solid var(--home-line-2);
}

body.home-page .article-index-heading h1 {
  max-width: 700px;
  margin: 16px 0 0;
  color: var(--home-text);
  font-size: clamp(42px, 6.4vw, 72px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

body.home-page .article-index-intro {
  padding-left: 26px;
  border-left: 1px solid var(--home-line-2);
}

body.home-page .article-index-intro p {
  margin: 0 0 18px;
  color: var(--home-text-2);
  font-size: 15px;
  line-height: 1.85;
}

body.home-page .archive-count {
  display: inline-flex;
  align-items: baseline;
  gap: 9px;
  color: var(--home-text-3);
  font-family: var(--home-mono);
  font-size: 14px;
}

body.home-page .archive-count strong {
  color: var(--home-accent);
  font-size: 15px;
  letter-spacing: 0.08em;
}

body.home-page .archive-list {
  display: flex;
  flex-direction: column;
}

body.home-page .archive-row {
  position: relative;
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr) 80px;
  align-items: center;
  gap: 24px;
  padding: 24px 0;
  border-bottom: 1px solid var(--home-line);
}

body.home-page .archive-cover {
  display: block;
  width: 220px;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border-radius: 10px;
  background: var(--home-bg-4);
}

body.home-page .archive-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.9) contrast(1.02) brightness(1.02);
  transition: transform 0.55s var(--home-ease), filter 0.55s var(--home-ease);
}

body.home-page .archive-row:hover .archive-cover img {
  transform: scale(1.045);
  filter: saturate(0.98) contrast(1.02) brightness(1.03);
}

body.home-page .archive-copy {
  min-width: 0;
}

body.home-page .archive-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 14px;
  margin-bottom: 7px;
  color: var(--home-text-3);
  font-family: var(--home-mono);
  font-size: 14px;
}

body.home-page .archive-category {
  padding: 2px 8px;
  border: 1px solid var(--home-line-2);
  border-radius: 999px;
  color: var(--home-text-2);
  background: var(--home-bg-2);
}

body.home-page .archive-title {
  max-width: 700px;
  margin: 0;
  color: var(--home-text);
  font-size: 21px;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: -0.018em;
  text-wrap: pretty;
}

body.home-page .archive-title a {
  transition: color 0.2s var(--home-ease);
}

body.home-page .archive-title a:hover,
body.home-page .archive-row:focus-within .archive-title a {
  color: var(--home-accent);
}

body.home-page .archive-excerpt {
  max-width: 640px;
  margin: 7px 0 0;
  color: var(--home-text-2);
  font-size: 15px;
  line-height: 1.65;
}

body.home-page .archive-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 13px;
  color: var(--home-text-2);
  font-size: 14px;
  font-weight: 700;
  transition: color 0.2s var(--home-ease);
}

body.home-page .archive-link span {
  transition: transform 0.24s var(--home-ease);
}

body.home-page .archive-link:hover {
  color: var(--home-accent);
}

body.home-page .archive-link:hover span {
  transform: translateX(4px);
}

body.home-page .archive-number {
  align-self: start;
  padding-top: 2px;
  color: var(--home-line-2);
  font-family: var(--home-mono);
  font-size: 22px;
  font-weight: 700;
  text-align: right;
  transition: color 0.24s var(--home-ease);
}

body.home-page .archive-row:hover .archive-number {
  color: var(--home-accent);
}

body.home-page .archive-end {
  padding: 52px 0 0;
  color: var(--home-text-3);
  text-align: center;
}

body.home-page .archive-end span {
  font-family: var(--home-mono);
  font-size: 14px;
  letter-spacing: 1px;
}

body.home-page .archive-end p {
  margin: 8px 0 0;
  font-size: 14px;
}

/* About */
body.home-page .about {
  padding-bottom: 44px;
}

body.home-page .about-grid {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  align-items: start;
  gap: 44px;
  padding: 28px 0 20px;
}

body.home-page .about-card {
  position: sticky;
  top: calc(var(--home-nav-h) + 24px);
  padding: 30px 26px;
  border: 1px solid var(--home-line);
  border-radius: var(--home-radius);
  background: var(--home-bg-2);
  text-align: center;
}

body.home-page .avatar-wrap {
  position: relative;
  width: 140px;
  height: 140px;
  margin: 0 auto 16px;
}

body.home-page .about-avatar {
  width: 140px;
  height: 140px;
  margin: 0 auto;
  border: 3px solid var(--home-accent-ink);
  border-radius: 50%;
  object-fit: cover;
  object-position: 50% 0;
  filter: saturate(0.86) contrast(1.02) brightness(1.02);
}

body.home-page .holo-ring {
  display: none;
  position: absolute;
  inset: -9px;
  border: 1.5px dashed rgba(37, 99, 235, 0.42);
  border-radius: 50%;
  animation: home-spin 16s linear infinite;
}

body.home-page .holo-dot {
  position: absolute;
  top: -3px;
  left: 50%;
  width: 8px;
  height: 8px;
  margin-left: -4px;
  border-radius: 50%;
  background: var(--home-accent);
  box-shadow: 0 0 10px rgba(37, 99, 235, 0.34);
}

body.home-page.ef-holo .holo-ring {
  display: block;
}

body.home-page .about-name {
  color: var(--home-text);
  font-size: 24px;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

body.home-page .about-role {
  margin-top: 5px;
  color: var(--home-accent);
  font-family: var(--home-mono);
  font-size: 14px;
  letter-spacing: 0.3px;
}

body.home-page .about-links {
  display: flex;
  flex-direction: column;
  gap: 9px;
  margin-top: 20px;
}

body.home-page .about-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 14px;
  border: 1px solid var(--home-line);
  border-radius: 9px;
  color: var(--home-text-2);
  font-family: var(--home-mono);
  font-size: 14px;
  transition: border-color 0.2s, color 0.2s, transform 0.2s var(--home-ease);
}

body.home-page .about-link:hover {
  border-color: var(--home-accent);
  color: var(--home-accent);
  transform: translateY(-1px);
}

body.home-page .about-link svg {
  width: 15px;
  height: 15px;
  flex: 0 0 auto;
  color: var(--home-accent);
}

body.home-page .about-bio h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 12px;
  color: var(--home-text);
  font-size: 21px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.01em;
}

body.home-page .about-bio h3:not(:first-child) {
  margin-top: 34px;
}

body.home-page .about-bio h3::before {
  content: "";
  width: 8px;
  height: 8px;
  flex: 0 0 auto;
  border-radius: 2px;
  background: var(--home-accent);
}

body.home-page .about-bio p {
  max-width: 680px;
  margin: 0 0 13px;
  color: var(--home-text-2);
  font-size: 16px;
  line-height: 1.78;
}

body.home-page .about-bio p b {
  color: var(--home-text);
}

body.home-page .timeline {
  margin: 4px 0 0;
}

body.home-page .timeline .tl-item:first-child {
  padding-top: 8px;
}

body.home-page .tl-item {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 8px 18px;
  padding: 15px 0;
  border-bottom: 1px solid var(--home-line);
}

body.home-page .tl-item:last-child {
  border-bottom: 0;
}

body.home-page .tl-period {
  min-width: 132px;
  color: var(--home-text-3);
  font-family: var(--home-mono);
  font-size: 14px;
  letter-spacing: 0.4px;
}

body.home-page .tl-role {
  color: var(--home-text);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

/* Contact: a deep ink-blue closing band within the same editorial system. */
body.home-page .contact-band {
  position: relative;
  overflow: hidden;
  margin-top: 0;
  border-top: 1px solid var(--home-line);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  color: #fff;
  background: var(--home-text);
}

body.home-page .contact-inner {
  position: relative;
  z-index: 1;
  display: grid;
  min-height: 296px;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  align-items: center;
  gap: 48px;
  padding-top: 52px;
  padding-bottom: 52px;
}

body.home-page .contact-copy {
  max-width: 660px;
}

body.home-page .sec-label.is-inverse {
  color: rgba(255, 255, 255, 0.68);
}

body.home-page .sec-label.is-inverse .num {
  color: rgba(255, 255, 255, 0.42);
}

body.home-page .sec-label.is-inverse::after {
  background: rgba(255, 255, 255, 0.28);
}

body.home-page .contact-copy h2 {
  max-width: 650px;
  margin: 14px 0 9px;
  color: #fff;
  font-size: clamp(28px, 3.5vw, 38px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

body.home-page .contact-copy p {
  max-width: 570px;
  margin: 0;
  color: rgba(255, 255, 255, 0.66);
  font-size: 16px;
  line-height: 1.7;
}

body.home-page .contact-email {
  position: relative;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: 24px;
  padding: 14px 18px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 9px;
  color: #fff;
  background: rgba(255, 255, 255, 0.04);
  font-family: var(--home-mono);
  font-size: 14px;
  transition: color 0.2s, background 0.2s, border-color 0.2s,
    transform 0.2s var(--home-ease);
}

body.home-page .contact-email:hover {
  border-color: #fff;
  color: var(--home-text);
  background: #fff;
  transform: translateY(-2px);
}

body.home-page .contact-mark {
  position: absolute;
  z-index: 0;
  right: clamp(-70px, -3vw, -24px);
  bottom: -54px;
  width: min(390px, 38vw);
  height: auto;
  color: #fff;
  opacity: 0.23;
  pointer-events: none;
}

/* Footer */
body.home-page .site-footer {
  margin-top: 0;
  padding: 34px 0 30px;
  border-top: 0;
  background: var(--home-bg-2);
}

body.home-page .foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
}

body.home-page .foot,
body.home-page .foot a,
body.home-page .foot-left,
body.home-page .foot-motto,
body.home-page .foot-links a {
  color: var(--home-text-3);
  font-size: 14px;
}

body.home-page .foot-left {
  font-family: var(--home-mono);
}

body.home-page .foot-left .accent {
  color: var(--home-accent);
}

body.home-page .foot-links {
  display: flex;
  align-items: center;
  gap: 20px;
}

body.home-page .foot-links a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--home-text-2);
  transition: color 0.2s;
}

body.home-page .foot-links a:hover,
body.home-page .foot a:hover {
  color: var(--home-accent);
}

body.home-page .foot-links svg {
  width: 14px;
  height: 14px;
}

/* Motion surfaces */
body.home-page .progress {
  position: fixed;
  z-index: 99;
  top: 0;
  left: 0;
  display: block;
  width: 0;
  height: 3px;
  pointer-events: none;
  background: linear-gradient(90deg, var(--home-accent), #8bb3ff);
  transition: width 0.08s linear;
}

body.home-page .boot {
  display: none;
  position: fixed;
  z-index: 200;
  inset: 0;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 18px;
  padding: 24px;
  background: var(--home-bg);
}

body.home-page.ef-boot .boot {
  display: flex;
}

body.home-page .boot .term {
  width: min(620px, 92vw);
}

body.home-page .boot .term-body {
  min-height: 0;
  justify-content: flex-start;
  padding: 22px clamp(16px, 4vw, 28px) 24px;
}

body.home-page .boot-tip {
  margin: 0;
  color: var(--home-text-3);
  font-family: var(--home-mono);
  font-size: 14px;
}

body.home-page .boot.hide {
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.5s var(--home-ease);
}

body.home-page .to-top {
  position: fixed;
  z-index: 40;
  right: 26px;
  bottom: 26px;
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border: 1px solid var(--home-line-2);
  border-radius: 12px;
  color: var(--home-accent);
  background: var(--home-bg-2);
  box-shadow: 0 10px 26px rgba(23, 50, 92, 0.12);
  opacity: 0;
  transform: translateY(14px);
  pointer-events: none;
  transition: opacity 0.3s var(--home-ease), transform 0.3s var(--home-ease),
    border-color 0.2s;
}

body.home-page .to-top.show {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

body.home-page .to-top:hover {
  border-color: var(--home-accent);
}

body.home-page .to-top svg {
  width: 18px;
  height: 18px;
}

body.home-page.ef-reveal .reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.55s var(--home-ease), transform 0.55s var(--home-ease);
}

body.home-page.ef-reveal .reveal.in {
  opacity: 1;
  transform: none;
}

@keyframes home-blink {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0; }
}

@keyframes home-spin {
  to { transform: rotate(360deg); }
}

@media (min-width: 721px) {
  body.home-page .tl-item {
    display: grid;
    grid-template-columns: 132px minmax(0, 1fr);
    align-items: baseline;
    column-gap: 20px;
  }

  body.home-page .tl-period {
    min-width: 0;
  }
}

@media (max-width: 960px) {
  body.home-page .hero {
    padding: 60px 0 46px;
  }

  body.home-page .hero-grid {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  body.home-page .product-board {
    width: min(100%, 620px);
    margin-inline: auto;
  }

  body.home-page .project-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  body.home-page .project-grid > .reveal:last-child:nth-child(odd) {
    width: calc((100% - 20px) / 2);
    grid-column: 1 / -1;
    justify-self: center;
  }

  body.home-page .art-row {
    grid-template-columns: 170px minmax(0, 1fr) 74px;
    gap: 22px;
  }

  body.home-page .art-thumb {
    width: 170px;
  }

  body.home-page .article-section-head {
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 38px;
  }

  body.home-page .article-index-hero {
    grid-template-columns: minmax(0, 1fr) minmax(260px, 340px);
    gap: 42px;
  }

  body.home-page .archive-row {
    grid-template-columns: 170px minmax(0, 1fr) 74px;
    gap: 22px;
  }

  body.home-page .archive-cover {
    width: 170px;
  }

  body.home-page .about-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  body.home-page .about-card {
    position: static;
    width: min(100%, 420px);
    justify-self: center;
  }

  body.home-page .about-avatar,
  body.home-page .avatar-wrap {
    width: 128px;
    height: 128px;
  }

  body.home-page .contact-inner {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  body.home-page .contact-mark {
    width: min(340px, 50vw);
    opacity: 0.16;
  }
}

@media (max-width: 720px) {
  body.home-page .container {
    padding-inline: 18px;
  }

  body.home-page .nav-links,
  body.home-page .nav-right .btn-ghost {
    display: none;
  }

  body.home-page .nav-burger {
    display: grid;
  }

  body.home-page .hero h1 {
    font-size: clamp(38px, 12vw, 52px);
  }

  body.home-page .hero-sub {
    max-width: 34rem;
    line-height: 1.72;
  }

  body.home-page .hero-ctas {
    margin-top: 24px;
  }

  body.home-page .hero-stats {
    margin-top: 34px;
  }

  body.home-page .hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  body.home-page .section-head {
    padding: 48px 0 0;
  }

  body.home-page #work {
    padding-bottom: 44px;
  }

  body.home-page .project-grid {
    grid-template-columns: 1fr;
    padding-top: 24px;
  }

  body.home-page .project-grid > .reveal:last-child:nth-child(odd) {
    width: auto;
    grid-column: auto;
    justify-self: stretch;
  }

  body.home-page .term-body {
    min-height: 280px;
    justify-content: flex-start;
    padding: 20px 16px;
    font-size: 14px;
  }

  body.home-page .term-status {
    gap: 10px;
    padding-inline: 12px;
  }

  body.home-page .product-board-ui {
    min-height: 390px;
  }

  body.home-page .board-stage {
    min-height: 336px;
    grid-template-columns: 48px minmax(0, 1fr);
  }

  body.home-page .board-rail {
    padding-inline: 7px;
  }

  body.home-page .board-canvas {
    padding: 14px 14px 16px;
  }

  body.home-page .signal-panel,
  body.home-page .prototype-panel {
    height: 122px;
    padding: 10px;
  }

  body.home-page .signal-visual {
    gap: 5px;
  }

  body.home-page .ready-copy i {
    display: none;
  }

  body.home-page .art-row {
    grid-template-columns: 1fr;
    align-items: flex-start;
    gap: 12px;
    padding: 22px 0;
  }

  body.home-page .art-thumb {
    width: 100%;
  }

  body.home-page .article-section-head {
    grid-template-columns: 1fr;
    align-items: start;
    gap: 16px;
    padding-top: 48px;
    padding-bottom: 14px;
  }

  body.home-page .article-head-aside {
    padding: 13px 0 0;
    border-top: 1px solid var(--home-line-2);
    border-left: 0;
  }

  body.home-page .art-side {
    min-height: 0;
    align-items: center;
    flex-direction: row;
    padding-top: 2px;
  }

  body.home-page .about-grid {
    gap: 24px;
    padding: 24px 0 16px;
  }

  body.home-page .about-bio p {
    line-height: 1.75;
  }

  body.home-page .article-index-list {
    padding-bottom: 68px;
  }

  body.home-page .article-index-hero {
    grid-template-columns: 1fr;
    align-items: start;
    gap: 24px;
    padding: 64px 0 42px;
  }

  body.home-page .article-index-intro {
    padding: 18px 0 0;
    border-top: 1px solid var(--home-line-2);
    border-left: 0;
  }

  body.home-page .archive-row {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 22px 0;
  }

  body.home-page .archive-cover {
    width: 100%;
  }

  body.home-page .archive-number {
    position: absolute;
    top: 38px;
    right: 10px;
    padding: 3px 8px;
    border: 1px solid rgba(255, 255, 255, 0.72);
    border-radius: 5px;
    color: var(--home-text-2);
    background: rgba(255, 255, 255, 0.9);
    font-size: 14px;
    backdrop-filter: blur(8px);
  }

  body.home-page .archive-title {
    font-size: 21px;
  }

  body.home-page .archive-end {
    padding-top: 40px;
  }

  body.home-page .contact-inner {
    min-height: 0;
    padding-top: 44px;
    padding-bottom: 44px;
  }

  body.home-page .contact-email {
    width: 100%;
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
    word-break: break-word;
  }

  body.home-page .contact-mark {
    right: -96px;
    width: 300px;
  }

  body.home-page .foot {
    align-items: flex-start;
    flex-direction: column;
  }

  body.home-page .to-top {
    right: 18px;
    bottom: 18px;
  }
}

@media (max-width: 480px) {
  body.home-page .board-status {
    display: none;
  }

  body.home-page .term-session {
    display: none;
  }

  body.home-page .term-title {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
}

@media (prefers-reduced-motion: reduce) {
  body.home-page *,
  body.home-page *::before,
  body.home-page *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  body.home-page.ef-reveal .reveal,
  body.home-page.ef-reveal .reveal.in {
    opacity: 1;
    transform: none;
  }

  body.home-page.ef-tilt .proj-card,
  body.home-page.ef-tilt .proj-card:hover {
    transform: none;
  }

  body.home-page .scanline,
  body.home-page .holo-ring {
    display: none;
  }
}