/* Shared catalog shell — theme via --accent / --accent-2 / --glow / --nav-active* */

:root,
[data-theme="dark"] {
  --bg: #080b10;
  --bg-2: #10161e;
  --ink: #eef2f7;
  --muted: #8b96a5;
  --accent: #b4f23c;
  --accent-2: #3de8d4;
  --accent-on: #0a1200;
  --nav-active: var(--accent-2);
  --nav-active-ink: #0a1200;
  --line: rgba(238, 242, 247, 0.08);
  --glow: rgba(180, 242, 60, 0.32);
  --surface: rgba(8, 11, 16, 0.92);
  --surface-solid: rgba(8, 11, 16, 0.95);
  --fill: rgba(255, 255, 255, 0.04);
  --fill-hover: rgba(255, 255, 255, 0.07);
  --card: linear-gradient(160deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.012));
  --shadow: rgba(0, 0, 0, 0.28);
  --modal-backdrop: rgba(3, 6, 10, 0.72);
  --modal-shadow: 0 24px 80px rgba(0, 0, 0, 0.55);
  --brand-grad-start: #fff;
  --error-border: rgba(255, 107, 107, 0.35);
  --error-ink: #ffb4b4;
  --error-bg: rgba(255, 107, 107, 0.08);
  --font-display: "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --font-body: "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --radius: 18px;
  --max: 1120px;
  --nav-ctrl: 2.35rem;
  --topbar-h: calc(var(--nav-ctrl) + 0.8rem);
  --topbar-inset: 0.75rem;
  --rail-h: 48px;
  --sticky-offset: calc(var(--topbar-inset) + var(--topbar-h) + var(--rail-h));
  --scroll-gap: 12px;
  color-scheme: dark;
}

[data-theme="light"] {
  --bg: #f2f4f7;
  --bg-2: #ffffff;
  --ink: #121820;
  --muted: #5a6878;
  --line: rgba(18, 24, 32, 0.1);
  --glow: rgba(90, 160, 20, 0.22);
  --surface: rgba(255, 255, 255, 0.86);
  --surface-solid: rgba(255, 255, 255, 0.96);
  --fill: rgba(18, 24, 32, 0.04);
  --fill-hover: rgba(18, 24, 32, 0.07);
  --card: linear-gradient(160deg, #ffffff, #f7f8fb);
  --shadow: rgba(18, 24, 32, 0.1);
  --modal-backdrop: rgba(18, 24, 32, 0.38);
  --modal-shadow: 0 24px 64px rgba(18, 24, 32, 0.16);
  --brand-grad-start: #1a2230;
  --error-border: rgba(180, 50, 50, 0.35);
  --error-ink: #b42318;
  --error-bg: rgba(180, 50, 50, 0.08);
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--sticky-offset) + var(--scroll-gap));
}
html.is-programmatic-scroll {
  scroll-behavior: auto !important;
}
html.is-programmatic-scroll main {
  overflow-anchor: none;
}
body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.65;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

.bg-mesh {
  position: fixed;
  inset: 0;
  z-index: -2;
  background: var(--bg);
}
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 70% 55% at 50% 28%, #000 18%, transparent 72%);
  pointer-events: none;
}

.topbar {
  position: sticky;
  top: var(--topbar-inset);
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.4rem 0.85rem;
  box-sizing: border-box;
  max-width: var(--max);
  width: calc(100% - 2.5rem);
  min-height: var(--topbar-h);
  margin: var(--topbar-inset) auto 0;
  padding: 0.4rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  background: var(--surface);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.04),
    0 10px 28px rgba(0, 0, 0, 0.18);
  transition: transform 0.28s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: transform;
}
.topbar.is-scroll-hidden {
  transform: translateY(calc(-100% - var(--topbar-inset) - 0.5rem));
  pointer-events: none;
}
[data-theme="light"] .topbar {
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.7),
    0 10px 28px rgba(18, 24, 32, 0.08);
}
.topbar-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: auto;
  position: relative;
  z-index: 3;
}
.theme-toggle {
  flex: 0 0 auto;
  box-sizing: border-box;
  width: var(--nav-ctrl);
  height: var(--nav-ctrl);
  padding: 0;
  display: grid;
  place-items: center;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--fill);
  color: var(--muted);
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s, background 0.2s, transform 0.2s;
}
.theme-toggle:hover,
.theme-toggle:focus-visible {
  color: var(--ink);
  border-color: color-mix(in srgb, var(--accent) 35%, var(--line));
  background: var(--fill-hover);
  outline: none;
  transform: translateY(-1px);
}
.theme-toggle svg {
  width: 0.95rem;
  height: 0.95rem;
  fill: currentColor;
}
.theme-toggle .icon-sun { display: block; }
.theme-toggle .icon-moon { display: none; }
[data-theme="light"] .theme-toggle .icon-sun { display: none; }
[data-theme="light"] .theme-toggle .icon-moon { display: block; }
.brand-mark {
  position: relative;
  z-index: 3;
  flex: 0 0 auto;
  box-sizing: border-box;
  min-height: var(--nav-ctrl);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.98rem;
  letter-spacing: -0.02em;
  line-height: 1.25;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0 0.35rem 0 0.15rem;
  margin-left: -0.15rem;
  border-radius: 8px;
  color: var(--ink);
  white-space: nowrap;
  transition: color 0.2s ease, background 0.2s ease;
}
.brand-mark .brand-text {
  color: inherit;
  background: none;
  -webkit-background-clip: unset;
  background-clip: unset;
}
.brand-mark .dot {
  width: 7px;
  height: 7px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--muted);
  box-shadow: none;
  opacity: 0.85;
  transition: background 0.2s ease, opacity 0.2s ease;
}
.brand-mark:hover,
.brand-mark:focus-visible {
  color: var(--ink);
  background: var(--fill-hover);
  outline: none;
}
.brand-mark:hover .dot,
.brand-mark:focus-visible .dot {
  background: var(--ink);
  opacity: 0.7;
}
.brand-mark:active {
  background: var(--fill);
}
.top-meta {
  font-size: 0.78rem;
  color: var(--muted);
  letter-spacing: 0.06em;
}
.top-nav {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-wrap: nowrap;
}
.top-link {
  font-size: 0.78rem;
  color: var(--muted);
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}
.top-link:hover {
  color: var(--ink);
  border-color: var(--line);
  background: var(--fill);
}
.top-link.is-active {
  color: var(--nav-active-ink);
  background: var(--nav-active);
  border-color: var(--nav-active);
}

.rail-wrap {
  position: sticky;
  top: calc(var(--topbar-inset) + var(--topbar-h) + 0.5rem);
  z-index: 30;
  max-width: var(--max);
  width: calc(100% - 2.5rem);
  margin: 0.5rem auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  backdrop-filter: blur(14px);
  transition: top 0.28s cubic-bezier(0.22, 1, 0.36, 1);
}
body.is-topbar-hidden .rail-wrap {
  top: var(--topbar-inset);
}
body.is-topbar-hidden {
  --sticky-offset: calc(var(--topbar-inset) + var(--rail-h));
}
.rail {
  margin: 0;
  padding: 0.65rem 1rem;
  display: flex;
  gap: 0.4rem;
  overflow-x: auto;
  scrollbar-width: none;
}
.rail::-webkit-scrollbar { display: none; }
.nav-chip {
  flex: 0 0 auto;
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  font-size: 0.8rem;
  color: var(--muted);
  border: 1px solid transparent;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}
.nav-chip:hover,
.nav-chip.is-active {
  color: var(--nav-active-ink);
  background: var(--nav-active);
  border-color: var(--nav-active);
}

.stats {
  max-width: var(--max);
  margin: 0 auto;
  padding: 2.5rem 1.25rem 1rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  text-align: center;
}
.stat strong {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  color: var(--accent);
  letter-spacing: -0.03em;
}
.stat span {
  font-size: 0.82rem;
  color: var(--muted);
}

main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1rem 1.25rem 2rem;
}
/* Reserved hook for mid-page scroll room; last category is never padded (avoids bottom blank). */
.cat-scroll-spacer {
  height: 0;
  pointer-events: none;
}

.skip-link {
  position: absolute;
  left: 0.75rem;
  top: 0.75rem;
  z-index: 10000;
  padding: 0.55rem 0.9rem;
  border-radius: 10px;
  background: var(--accent);
  color: var(--accent-on, #0a1200);
  font-weight: 700;
  text-decoration: none;
  transform: translateY(-160%);
  transition: transform 0.2s ease;
}
.skip-link:focus,
.skip-link:focus-visible {
  transform: translateY(0);
  outline: 2px solid var(--ink);
  outline-offset: 2px;
}

.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.page-title {
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 3.6vw, 2.15rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin: 0.35rem 0 0.25rem;
  color: var(--ink);
  text-align: center;
  opacity: 0;
  animation: riseUp 0.75s cubic-bezier(0.22, 1, 0.36, 1) 0.08s both;
}

.page-title + .cat {
  border-top: none;
  padding-top: 2rem;
}

.cat {
  padding: 3.5rem 0 1rem;
  border-top: 1px solid var(--line);
}
.cat-head {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "index title"
    "intro intro";
  gap: 0.35rem 1.25rem;
  align-items: start;
  margin-bottom: 1.75rem;
  scroll-margin-top: calc(var(--sticky-offset) + var(--scroll-gap));
}
.cat-index {
  grid-area: index;
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 800;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1.5px color-mix(in srgb, var(--accent) 45%, transparent);
  margin: 0;
}
.cat-head h2 {
  grid-area: title;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3vw, 1.85rem);
  margin: 0;
  letter-spacing: -0.02em;
  align-self: center;
}
.cat-intro {
  grid-area: intro;
  margin: 0.35rem 0 0;
  color: var(--muted);
  font-size: 0.92rem;
  max-width: none;
  text-align: center;
  text-indent: 0;
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 0.85rem;
}
.tool {
  position: relative;
  display: grid;
  grid-template-columns: 56px 1fr;
  grid-template-areas:
    "icon body"
    "desc desc";
  column-gap: 0.9rem;
  row-gap: 0.65rem;
  align-items: start;
  padding: 1.1rem 1rem;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid var(--line);
  cursor: pointer;
  transition: border-color 0.25s, background 0.25s, box-shadow 0.25s;
}
.tool:hover {
  border-color: color-mix(in srgb, var(--accent) 40%, transparent);
  background: linear-gradient(
    160deg,
    color-mix(in srgb, var(--accent) 9%, transparent),
    color-mix(in srgb, var(--accent-2) 4%, transparent)
  );
  box-shadow: 0 12px 28px var(--shadow);
}
.tool-icon {
  grid-area: icon;
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  display: grid;
  place-items: center;
  overflow: hidden;
}
.tool-icon img {
  width: 40px;
  height: 40px;
  object-fit: contain;
  border-radius: 10px;
}
.icon-fallback {
  font-family: var(--font-display);
  font-weight: 800;
  color: var(--accent);
  font-size: 1.2rem;
}
.tool-body {
  grid-area: body;
  min-width: 0;
}
.tool-body .tag {
  margin: 0;
  font-size: 0.72rem;
  color: var(--accent-2);
  letter-spacing: 0.02em;
}
.tool-body h3 {
  margin: 0 0 0.2rem;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.45rem;
}
.tool-detail {
  appearance: none;
  margin: 0;
  padding: 0;
  border: 0;
  background: none;
  color: inherit;
  font: inherit;
  font-weight: inherit;
  letter-spacing: inherit;
  text-align: left;
  cursor: pointer;
}
.tool-detail:hover,
.tool-detail:focus-visible {
  color: var(--accent);
}
.tool-detail:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--accent) 70%, transparent);
  outline-offset: 2px;
  border-radius: 4px;
}
.status-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.12rem 0.45rem;
  border-radius: 999px;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #ffc9c9;
  background: rgba(255, 107, 107, 0.14);
  border: 1px solid rgba(255, 107, 107, 0.35);
}
.tool.is-discontinued {
  opacity: 0.72;
}
.tool.is-discontinued:hover {
  opacity: 1;
}
.detail-name .status-pill {
  vertical-align: middle;
  margin-left: 0.35rem;
}
.tool-body .desc,
.tool > .desc {
  margin: 0;
  font-size: 0.82rem;
  color: var(--muted);
  text-indent: 2em;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.tool > .desc {
  grid-area: desc;
  -webkit-line-clamp: 3;
}
.tool-open {
  align-self: center;
  justify-self: end;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.5rem;
  padding: 0.35rem 0.55rem;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--accent) 35%, transparent);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-decoration: none;
  opacity: 0.72;
  transition: opacity 0.2s, background 0.2s, border-color 0.2s, color 0.2s, transform 0.2s;
}
.tool:hover .tool-open,
.tool:focus-within .tool-open {
  opacity: 1;
}
.tool-open:hover,
.tool-open:focus-visible {
  opacity: 1;
  background: color-mix(in srgb, var(--accent) 22%, transparent);
  border-color: color-mix(in srgb, var(--accent) 55%, transparent);
  color: var(--ink);
  transform: translateY(-1px);
  outline: none;
}

.tool-actions {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  align-items: stretch;
}
.tool-actions .tool-open,
.tool-actions .tool-copy {
  opacity: 0.85;
  min-width: 4.8rem;
  white-space: nowrap;
}
.tool:hover .tool-actions .tool-open,
.tool:focus-within .tool-actions .tool-open,
.tool:hover .tool-actions .tool-copy,
.tool:focus-within .tool-actions .tool-copy {
  opacity: 1;
}
.tool-copy {
  appearance: none;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 2.5rem;
  padding: 0.35rem 0.55rem;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--accent-2) 40%, transparent);
  background: color-mix(in srgb, var(--accent-2) 12%, transparent);
  color: var(--accent-2);
  font: inherit;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  cursor: pointer;
  opacity: 0.72;
  transition: opacity 0.2s, background 0.2s, border-color 0.2s, color 0.2s, transform 0.2s;
  box-sizing: border-box;
}
/* Invisible label keeps width when text flashes to 已复制 */
.tool-copy::after,
.detail-copy::after {
  content: attr(data-label);
  display: block;
  height: 0;
  overflow: hidden;
  visibility: hidden;
  white-space: nowrap;
  pointer-events: none;
  speak: never;
}
.tool-copy:hover,
.tool-copy:focus-visible {
  opacity: 1;
  background: color-mix(in srgb, var(--accent-2) 22%, transparent);
  border-color: color-mix(in srgb, var(--accent-2) 55%, transparent);
  color: var(--ink);
  transform: translateY(-1px);
  outline: none;
}
.tool-copy:disabled {
  opacity: 0.9;
  cursor: default;
  transform: none;
}

/* Activity: cover banner on top, then icon/body, desc, actions */
.tool--activity {
  grid-template-areas:
    "icon body"
    "desc desc"
    "actions actions";
}
.tool--activity.has-cover {
  grid-template-areas:
    "cover cover"
    "icon body"
    "desc desc"
    "actions actions";
}
.tool--activity .tool-cover {
  grid-area: cover;
  margin: -1.1rem -1rem 0;
  width: calc(100% + 2rem);
  aspect-ratio: 16 / 9;
  max-height: 9.5rem;
  overflow: hidden;
  border-radius: var(--radius) var(--radius) 0 0;
  background: var(--bg-2);
  border-bottom: 1px solid var(--line);
}
.tool--activity .tool-cover img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.tool--activity .tool-actions {
  grid-area: actions;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(0, 1fr));
  gap: 0.45rem;
  align-items: stretch;
}
.tool--activity .tool-actions .tool-open,
.tool--activity .tool-actions .tool-copy {
  width: 100%;
  min-width: 0;
  justify-content: center;
  opacity: 0.9;
  padding: 0.45rem 0.75rem;
  box-sizing: border-box;
}

.detail-cover--banner {
  width: 100%;
  aspect-ratio: auto;
  max-height: none;
  height: auto;
}
.detail-cover--banner img {
  width: 100%;
  height: auto;
  max-height: min(28vh, 11rem);
  object-fit: contain;
  object-position: center top;
}

.load-error {
  margin: 2rem 0;
  padding: 1.25rem;
  border-radius: var(--radius);
  border: 1px solid var(--error-border);
  color: var(--error-ink);
  background: var(--error-bg);
}

.footnote {
  max-width: var(--max);
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--line);
}
.footnote a,
.footnote .foot-about {
  color: var(--accent-2);
  border-bottom: 1px solid color-mix(in srgb, var(--accent-2) 35%, transparent);
}
.footnote .foot-sep {
  margin: 0 0.35em;
  color: var(--muted);
  border: 0;
}
.footnote .foot-line {
  display: block;
}

/* detail modal (tool pages) */
.detail-modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: 1rem;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}
.detail-modal.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}
.detail-modal-backdrop {
  position: absolute;
  inset: 0;
  background: var(--modal-backdrop);
  backdrop-filter: blur(8px);
}
.detail-modal-panel {
  position: relative;
  z-index: 1;
  width: 60vw;
  height: 70vh;
  max-height: 70vh;
  display: flex;
  flex-direction: column;
  border-radius: 18px;
  overflow: hidden;
  background: var(--bg-2);
  border: 1px solid var(--line);
  box-shadow: var(--modal-shadow);
  transform: translateY(16px) scale(0.98);
  transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}
.detail-modal.is-open .detail-modal-panel {
  transform: none;
}
.detail-modal-fx {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}
.detail-modal-fx i {
  position: absolute;
  border-radius: 50%;
  filter: blur(56px);
  opacity: 0.42;
  will-change: transform;
}
.detail-modal.is-open .detail-modal-fx i {
  animation: detailFxDrift 18s ease-in-out infinite alternate;
}
.detail-modal-fx i:nth-child(1) {
  width: 55%;
  height: 55%;
  left: -12%;
  top: -18%;
  background: color-mix(in srgb, var(--accent) 55%, transparent);
  animation-duration: 16s;
}
.detail-modal-fx i:nth-child(2) {
  width: 48%;
  height: 48%;
  right: -14%;
  top: 22%;
  background: color-mix(in srgb, var(--accent-2) 50%, transparent);
  animation-duration: 22s;
  animation-delay: -5s;
}
.detail-modal-fx i:nth-child(3) {
  width: 58%;
  height: 58%;
  left: 22%;
  bottom: -28%;
  background: color-mix(in srgb, var(--glow) 70%, transparent);
  animation-duration: 20s;
  animation-delay: -9s;
}
.detail-modal-fx::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(color-mix(in srgb, var(--ink) 14%, transparent) 1px, transparent 1px);
  background-size: 22px 22px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000 15%, transparent 72%);
  opacity: 0.28;
  pointer-events: none;
}
[data-theme="light"] .detail-modal-fx i {
  opacity: 0.28;
}
[data-theme="light"] .detail-modal-fx::after {
  opacity: 0.18;
}
@keyframes detailFxDrift {
  from { transform: translate(0, 0) scale(1); }
  to { transform: translate(6%, 8%) scale(1.1); }
}
.detail-modal-bar,
.detail-modal-title {
  display: none !important;
}
.detail-modal-close {
  position: absolute;
  top: 0.85rem;
  right: 0.85rem;
  z-index: 2;
  flex: 0 0 auto;
  width: 2rem;
  height: 2rem;
  padding: 0;
  display: grid;
  place-items: center;
  font-size: 1.1rem;
  line-height: 1;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface-solid) 82%, transparent);
  color: var(--ink);
  cursor: pointer;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.detail-modal-close:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.detail-modal-body {
  position: relative;
  z-index: 1;
  flex: 1;
  min-height: 0;
  overflow: auto;
  padding: 1.75rem 1.75rem 1.85rem;
}
.detail-content {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 1.25rem;
  min-height: 100%;
}
.detail-split {
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
  flex: 1 1 auto;
  min-height: 0;
}
.detail-split-main {
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
  min-width: 0;
}
.detail-cover {
  margin: 0;
  flex: 0 0 auto;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--fill) 80%, transparent);
  max-height: min(42vh, 18rem);
}
.detail-cover[hidden] {
  display: none !important;
}
.detail-cover img {
  display: block;
  width: 100%;
  height: auto;
  max-height: min(42vh, 18rem);
  object-fit: contain;
  object-position: center top;
}
@media (min-width: 721px) {
  .detail-split.has-cover {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    grid-template-rows: auto;
    align-items: start;
    gap: 1.35rem;
  }
  .detail-split.has-cover .detail-cover {
    order: 0;
    grid-column: 2;
    grid-row: 1;
    width: 100%;
    height: auto;
    max-height: min(48vh, 20rem);
    align-self: start;
  }
  .detail-split.has-cover .detail-cover img {
    max-height: min(48vh, 20rem);
  }
  .detail-split.has-cover .detail-split-main {
    grid-column: 1;
    grid-row: 1;
  }
  .detail-split--activity.has-cover {
    grid-template-columns: 349px minmax(0, 1fr);
    align-items: start;
    gap: 1.1rem;
  }
  .detail-split--activity.has-cover .detail-cover {
    grid-column: 1;
    width: 349px;
    max-width: 349px;
    height: auto;
    max-height: none;
    align-self: start;
  }
  .detail-split--activity.has-cover .detail-cover.detail-cover--banner,
  .detail-split--activity.has-cover .detail-cover img,
  .detail-split--activity.has-cover .detail-cover--banner img {
    width: 100%;
    height: auto;
    max-height: none;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    object-position: center;
  }
  .detail-split--activity.has-cover .detail-split-main {
    grid-column: 2;
    justify-content: flex-start;
    align-self: start;
  }
  .detail-split--activity.has-cover .detail-desc {
    margin: 0;
  }
}
.detail-head {
  display: flex;
  align-items: center;
  gap: 1.1rem;
}
.detail-icon {
  flex: 0 0 auto;
  width: 80px;
  height: 80px;
  border-radius: 18px;
  background: var(--bg);
  border: 1px solid var(--line);
  display: grid;
  place-items: center;
  overflow: hidden;
}
.detail-icon img {
  width: 52px;
  height: 52px;
  object-fit: contain;
}
.detail-icon-fallback {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.7rem;
  color: var(--accent);
}
.detail-meta {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.detail-name {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3vw, 1.7rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
}
.detail-tag {
  margin: 0;
  font-size: 0.85rem;
  color: var(--accent-2);
}
.detail-desc {
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.75;
  text-indent: 2em;
}
.detail-codeword {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0;
  min-height: 4.75rem;
  padding: 1rem 1.15rem 1rem 4.25rem;
  border-radius: 14px;
  border: 1px solid var(--line);
  overflow: hidden;
  background:
    linear-gradient(
      90deg,
      color-mix(in srgb, var(--accent) 16%, transparent) 0%,
      color-mix(in srgb, var(--accent) 5%, transparent) 38%,
      transparent 62%
    ),
    var(--fill);
  cursor: pointer;
  text-align: center;
  outline: none;
  transition: border-color 0.2s, background 0.2s;
}
.detail-codeword::before {
  content: "";
  position: absolute;
  left: 0.95rem;
  top: 50%;
  z-index: 0;
  width: 2.65rem;
  height: 2.65rem;
  transform: translateY(-50%);
  background-color: color-mix(in srgb, var(--accent) 72%, var(--ink));
  opacity: 0.55;
  pointer-events: none;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.75' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='7.5' cy='15.5' r='5.5'/%3E%3Cpath d='m21 2-9.6 9.6'/%3E%3Cpath d='m15.5 7.5 2.3 2.3a1 1 0 0 0 1.4 0l2.1-2.1a1 1 0 0 0 0-1.4L19 4'/%3E%3C/svg%3E")
    center / contain no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.75' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='7.5' cy='15.5' r='5.5'/%3E%3Cpath d='m21 2-9.6 9.6'/%3E%3Cpath d='m15.5 7.5 2.3 2.3a1 1 0 0 0 1.4 0l2.1-2.1a1 1 0 0 0 0-1.4L19 4'/%3E%3C/svg%3E")
    center / contain no-repeat;
  transition: opacity 0.2s ease, background-color 0.2s ease;
}
.detail-codeword[hidden] {
  display: none !important;
}
.detail-codeword:hover,
.detail-codeword:focus-visible {
  border-color: color-mix(in srgb, var(--accent) 40%, var(--line));
  background:
    linear-gradient(
      90deg,
      color-mix(in srgb, var(--accent) 22%, transparent) 0%,
      color-mix(in srgb, var(--accent) 8%, transparent) 38%,
      transparent 62%
    ),
    color-mix(in srgb, var(--accent) 8%, var(--fill));
}
.detail-codeword:hover::before,
.detail-codeword:focus-visible::before {
  opacity: 0.78;
  background-color: var(--accent);
}
.detail-codeword-label {
  display: none !important;
}
.detail-codeword-text {
  position: relative;
  z-index: 1;
  margin: 0;
  max-width: 100%;
  font: inherit;
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--ink);
  white-space: pre-wrap;
  word-break: break-word;
  text-align: center;
  filter: blur(6px);
  transition: filter 0.22s ease;
  user-select: none;
  pointer-events: none;
}
.detail-codeword:hover .detail-codeword-text,
.detail-codeword:focus-visible .detail-codeword-text {
  filter: none;
}
.detail-codeword.is-copied .detail-codeword-text {
  filter: none;
  opacity: 0;
}
.detail-codeword-hint {
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 1;
  transform: translate(-50%, -50%);
  padding: 0.5rem 1rem;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 750;
  letter-spacing: 0.04em;
  color: var(--accent-on, #0a1200);
  background: var(--accent);
  box-shadow:
    0 0 0 3px color-mix(in srgb, var(--accent) 28%, transparent),
    0 10px 24px color-mix(in srgb, var(--accent) 35%, transparent);
  opacity: 0.96;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
  white-space: nowrap;
}
.detail-codeword:hover .detail-codeword-hint,
.detail-codeword:focus-visible .detail-codeword-hint,
.detail-codeword.is-copied .detail-codeword-hint {
  opacity: 0;
  transform: translate(-50%, -50%) scale(0.92);
  box-shadow: none;
}
@media (hover: none) {
  .detail-codeword-hint {
    opacity: 1;
  }
  .detail-codeword.is-copied .detail-codeword-hint {
    opacity: 0;
  }
}
.detail-codeword-toast {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: grid;
  place-items: center;
  padding: 0.85rem 1.1rem;
  border-radius: inherit;
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.45;
  text-align: center;
  color: var(--ink);
  background: var(--bg-2);
  border: 1px solid color-mix(in srgb, var(--accent) 28%, var(--line));
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent) 12%, transparent);
}
.detail-codeword-toast[hidden] {
  display: none !important;
}
@media (prefers-reduced-motion: reduce) {
  .detail-codeword-text {
    filter: blur(3px);
  }
}
.detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  align-items: center;
}
.detail-download {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  align-self: flex-start;
  gap: 0.4rem;
  margin-top: 0.15rem;
  padding: 0.95rem 1.5rem;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-on);
  font-weight: 700;
  font-size: 0.98rem;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
}
.detail-download:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px var(--glow);
}
.detail-copy {
  appearance: none;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin-top: 0.15rem;
  padding: 0.95rem 1.5rem;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--accent-2) 45%, transparent);
  background: color-mix(in srgb, var(--accent-2) 14%, transparent);
  color: var(--ink);
  font: inherit;
  font-weight: 700;
  font-size: 0.98rem;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
  box-sizing: border-box;
}
.detail-copy:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px var(--glow);
  background: color-mix(in srgb, var(--accent-2) 22%, transparent);
}
.detail-copy:disabled {
  cursor: default;
  transform: none;
}
body.is-modal-open {
  overflow: hidden;
}

@keyframes riseUp {
  from { opacity: 0; transform: translateY(28px); }
  to { opacity: 1; transform: none; }
}

.stats {
  opacity: 0;
  animation: riseUp 0.75s cubic-bezier(0.22, 1, 0.36, 1) 0.08s both;
}

.rail-wrap {
  opacity: 0;
  animation: riseUp 0.75s cubic-bezier(0.22, 1, 0.36, 1) 0.16s both;
}

.cat {
  opacity: 0;
  transform: translateY(36px);
  transition:
    opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.cat.is-in {
  opacity: 1;
  transform: none;
}

.cat .tool,
.cat .article {
  opacity: 0;
  transform: translateY(22px);
  transition:
    opacity 0.55s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.55s cubic-bezier(0.22, 1, 0.36, 1),
    border-color 0.25s ease,
    background 0.25s ease,
    box-shadow 0.25s ease;
}

.cat.is-in .tool,
.cat.is-in .article,
.tool.is-in,
.article.is-in {
  opacity: 1;
  transform: none;
  transition-delay:
    calc(0.06s + var(--i, 0) * 0.05s),
    calc(0.06s + var(--i, 0) * 0.05s),
    0s,
    0s,
    0s;
}

.footnote {
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity 0.65s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.65s cubic-bezier(0.22, 1, 0.36, 1);
}

.footnote.is-in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .stats,
  .rail-wrap,
  .page-title,
  .cat,
  .cat .tool,
  .cat .article,
  .footnote {
    opacity: 1;
    transform: none;
    animation: none;
    transition: none;
  }
  .topbar,
  .rail-wrap {
    transition: none;
  }
  .topbar.is-scroll-hidden {
    transform: none;
    opacity: 0;
    visibility: hidden;
  }
  .detail-modal.is-open .detail-modal-fx i {
    animation: none;
  }
}

@media (max-width: 640px) {
  .stats { gap: 0.4rem; padding: 1.5rem 0.75rem 0.75rem; }
  .stat strong { font-size: clamp(1.35rem, 7vw, 1.8rem); }
  .stat span { font-size: 0.7rem; }
  .top-meta { display: none; }
  .topbar {
    --topbar-inset: 0.5rem;
    width: calc(100% - 1.25rem);
    padding: 0.4rem 0.75rem;
    border-radius: 16px;
  }
  .topbar-actions { margin-left: auto; gap: 0.4rem; }
  .theme-toggle { width: var(--nav-ctrl); height: var(--nav-ctrl); border-radius: 10px; }
  .tool {
    grid-template-columns: 48px 1fr;
    column-gap: 0.65rem;
    row-gap: 0.55rem;
  }
  .tool-open,
  .tool-copy {
    min-width: 2.2rem;
    padding: 0.3rem 0.45rem;
    font-size: 0.68rem;
    opacity: 0.9;
  }
  .tool-actions .tool-open,
  .tool-actions .tool-copy {
    min-width: 4.2rem;
  }
  .tool--activity .tool-actions .tool-open,
  .tool--activity .tool-actions .tool-copy {
    min-width: 0;
    padding: 0.42rem 0.65rem;
  }
  .tool-icon { width: 48px; height: 48px; border-radius: 12px; }
  .cat-head {
    grid-template-columns: 1fr;
    grid-template-areas:
      "index"
      "title"
      "intro";
    gap: 0.35rem;
  }
  .cat-index { font-size: 1.6rem; }
  .detail-modal {
    padding: 0;
  }
  .detail-modal-panel {
    width: 100vw;
    height: 100vh;
    height: 100dvh;
    max-height: none;
    border-radius: 0;
    border: none;
  }
  .detail-icon {
    width: 64px;
    height: 64px;
    border-radius: 14px;
  }
  .detail-icon img {
    width: 42px;
    height: 42px;
  }
}

/* Activity passphrase gate */
body.is-gated .stats,
body.is-gated .rail-wrap,
body.is-gated #appMain,
body.is-gated .footnote,
body.is-gated .detail-modal {
  display: none !important;
}

.activity-gate {
  max-width: 420px;
  margin: 4rem auto 6rem;
  padding: 0 1.25rem;
}

.activity-gate-card {
  padding: 1.75rem 1.5rem 1.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--card);
  box-shadow: 0 16px 48px var(--shadow);
}

.activity-gate-kicker {
  margin: 0 0 0.35rem;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.activity-gate-title {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

.activity-gate-desc {
  margin: 0 0 1.25rem;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.55;
}

.activity-gate-form {
  display: grid;
  gap: 0.75rem;
}

.activity-gate-form label {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.activity-gate-form input[type="password"] {
  width: 100%;
  box-sizing: border-box;
  padding: 0.85rem 1rem;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--fill);
  color: var(--ink);
  font: inherit;
  font-size: 1rem;
  outline: none;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.activity-gate-form input[type="password"]:focus {
  border-color: color-mix(in srgb, var(--accent) 55%, var(--line));
  background: var(--fill-hover);
}

.activity-gate-form button[type="submit"] {
  appearance: none;
  border: 0;
  border-radius: 12px;
  padding: 0.85rem 1.1rem;
  font: inherit;
  font-weight: 650;
  cursor: pointer;
  color: var(--accent-on);
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  transition: transform 0.15s ease, filter 0.15s ease, opacity 0.15s ease;
}

.activity-gate-form button[type="submit"]:hover:not(:disabled) {
  filter: brightness(1.05);
  transform: translateY(-1px);
}

.activity-gate-form button[type="submit"]:disabled {
  opacity: 0.65;
  cursor: wait;
}

.activity-gate-error {
  margin: 0;
  min-height: 1.25em;
  font-size: 0.88rem;
  color: var(--error-ink);
}

.activity-gate-error[hidden] {
  display: none !important;
}

@media (max-width: 640px) {
  .activity-gate {
    margin: 2.5rem auto 4rem;
  }
  .activity-gate-card {
    padding: 1.4rem 1.15rem 1.2rem;
  }
}