:root {
  --accent: #0bb4c6;
  --accent-strong: #078d9d;
  --accent-soft: rgba(11, 180, 198, 0.12);
  --ink: #12203a;
  --ink-soft: #5a6a86;
  --muted: #8593ad;
  --line: rgba(40, 80, 150, 0.16);
  --line-soft: rgba(40, 80, 150, 0.07);
  --bg: #edf2fa;
  --panel: #ffffff;
  --up: #10a37b;
  --up-soft: rgba(16, 163, 123, 0.12);
  --down: #df5272;
  --down-soft: rgba(223, 82, 114, 0.1);
  --header-bg: rgba(237, 242, 250, 0.83);
  --glow: 0 0 0 1px rgba(11, 180, 198, 0.32), 0 0 24px rgba(11, 180, 198, 0.2);
  --radial: rgba(11, 180, 198, 0.13);
  --grid: rgba(40, 80, 150, 0.045);
}

:root[data-theme="dark"] {
  --accent: #20c9dc;
  --accent-strong: #63deeb;
  --accent-soft: rgba(32, 201, 220, 0.15);
  --ink: #e6ecf5;
  --ink-soft: #a4b1c9;
  --muted: #71809b;
  --line: rgba(120, 160, 220, 0.19);
  --line-soft: rgba(120, 160, 220, 0.08);
  --bg: #0c1320;
  --panel: #151e2e;
  --up: #2bc49a;
  --up-soft: rgba(43, 196, 154, 0.16);
  --down: #f06a88;
  --down-soft: rgba(240, 106, 136, 0.15);
  --header-bg: rgba(12, 19, 32, 0.86);
  --glow: 0 0 0 1px rgba(32, 201, 220, 0.4), 0 0 24px rgba(32, 201, 220, 0.27);
  --radial: rgba(32, 201, 220, 0.11);
  --grid: rgba(140, 175, 235, 0.05);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 50% -12%, var(--radial), transparent 46%),
    linear-gradient(var(--grid) 1px, transparent 1px) 0 0 / 48px 48px,
    linear-gradient(90deg, var(--grid) 1px, transparent 1px) 0 0 / 48px 48px,
    var(--bg);
  font-family: "Space Grotesk", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  transition: background 220ms ease, color 220ms ease;
}
button, input { font: inherit; }
button { color: inherit; }
button:not(:disabled) { cursor: pointer; }
button:focus-visible, input:focus-visible, a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
button { border: 0; background: none; }
.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

.site-header { position: sticky; top: 0; z-index: 20; border-bottom: 1px solid var(--line); background: var(--header-bg); backdrop-filter: blur(16px); }
.header-inner { display: flex; align-items: center; min-height: 60px; max-width: 1050px; margin: 0 auto; padding: 10px 28px; gap: 16px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; min-width: 0; }
.brand-logo { display: block; width: 124px; height: 38px; object-fit: contain; object-position: left center; }
.brand-mark, .modal-mark { display: grid; place-items: center; width: 27px; height: 27px; border-radius: 7px; color: #fff; background: var(--accent); box-shadow: 0 6px 14px rgba(11, 180, 198, 0.24); font-weight: 700; font-size: 15px; }
.brand-name { font-weight: 700; font-size: 18px; letter-spacing: -0.35px; }
.brand-tagline { color: var(--muted); font-size: 11px; padding-top: 2px; }
.header-actions { display: flex; align-items: center; gap: 6px; margin-left: auto; }
.icon-button { display: grid; place-items: center; width: 31px; height: 31px; color: var(--ink-soft); border-radius: 7px; font-family: "JetBrains Mono", monospace; font-size: 15px; transition: background 150ms ease, color 150ms ease; }
.icon-button:hover { color: var(--ink); background: var(--line-soft); }
.admin-link { padding: 6px 8px; color: var(--accent-strong); font-size: 12px; font-weight: 600; text-decoration: none; white-space: nowrap; }
.admin-link:hover { text-decoration: underline; }
.login-button, .primary-button { border-radius: 7px; color: #fff; background: var(--accent); padding: 7px 13px; font-weight: 600; font-size: 13px; box-shadow: 0 3px 8px rgba(11, 180, 198, 0.2); transition: transform 150ms ease, background 150ms ease; }
.login-button:hover, .primary-button:hover { background: var(--accent-strong); transform: translateY(-1px); }
.login-button-linuxdo { color: var(--ink-soft); border: 1px solid var(--line); background: var(--panel); box-shadow: none; }
.login-button-linuxdo:hover { color: var(--accent-strong); border-color: var(--accent); background: var(--accent-soft); }

.announcement { max-width: 1050px; margin: 0 auto; padding: 12px 28px 0; }
.announcement[hidden] { display: none; }
.announcement-inner { display: flex; align-items: center; gap: 9px; max-width: 760px; margin: 0 auto; padding: 8px 11px; border: 1px solid var(--line); border-radius: 8px; color: var(--ink-soft); background: color-mix(in srgb, var(--panel) 72%, transparent); font-size: 12.5px; }
.announcement-inner > span:first-child { color: var(--accent); font-size: 13px; }
.dismiss-announcement { margin-left: auto; color: var(--muted); font-size: 18px; line-height: 1; }
.dismiss-announcement:hover { color: var(--ink); }

.app-main { width: min(100%, 830px); margin: 0 auto; padding: 0 22px 58px; }
.hero { padding: 64px 0 35px; text-align: center; }
.eyebrow, .section-kicker { margin: 0; color: var(--accent-strong); font-size: 11px; font-weight: 600; letter-spacing: 0.12em; }
.hero h1 { margin: 12px 0 8px; font-size: clamp(2rem, 5vw, 2.7rem); letter-spacing: -0.07em; line-height: 1.15; }
.hero-copy { margin: 0; color: var(--ink-soft); font-size: 16px; }
.search-box { display: flex; align-items: center; gap: 9px; height: 58px; margin: 29px auto 13px; padding: 6px 7px 6px 17px; border: 1px solid var(--line); border-radius: 14px; background: var(--panel); box-shadow: 0 9px 20px rgba(26, 55, 100, 0.06); text-align: left; transition: box-shadow 180ms ease, border-color 180ms ease; }
.search-box:focus-within { border-color: var(--accent); box-shadow: var(--glow); }
.search-icon { color: var(--accent); font-family: serif; font-size: 28px; line-height: 1; transform: rotate(-18deg); }
.search-box input { width: 100%; min-width: 0; padding: 6px 0; color: var(--ink); border: 0; outline: 0; background: transparent; font-size: 16px; }
.search-box input::placeholder { color: var(--muted); }
.clear-search { display: none; align-items: center; justify-content: center; width: 28px; height: 28px; border-radius: 6px; color: var(--muted); font-size: 19px; }
.clear-search.visible { display: flex; }
.clear-search:hover { color: var(--ink); background: var(--line-soft); }
.shortcut { padding: 4px 7px; border: 1px solid var(--line); border-radius: 5px; color: var(--muted); font-size: 10px; white-space: nowrap; }
.hot-row { display: flex; justify-content: center; align-items: center; flex-wrap: wrap; gap: 7px; color: var(--ink-soft); font-size: 12.5px; }
.hot-chips { display: inline-flex; flex-wrap: wrap; justify-content: center; gap: 5px; }
.hot-chip { padding: 3px 8px; color: var(--ink-soft); border: 1px solid transparent; border-radius: 4px; font-size: 12px; transition: color 150ms ease, border-color 150ms ease, background 150ms ease; }
.hot-chip:hover { color: var(--accent-strong); border-color: var(--accent); background: var(--accent-soft); }
.hero-contribute { display: flex; align-items: center; justify-content: center; gap: 10px; margin-top: 22px; color: var(--muted); font-size: 12px; }
.contribute-cta { display: inline-flex; align-items: center; gap: 5px; padding: 9px 15px; border: 1px solid var(--accent); border-radius: 8px; color: #fff; background: var(--accent); box-shadow: 0 5px 13px rgba(11, 180, 198, 0.24); font-size: 13px; font-weight: 700; transition: transform 150ms ease, background 150ms ease, box-shadow 150ms ease; }
.contribute-cta:hover { background: var(--accent-strong); box-shadow: 0 7px 17px rgba(11, 180, 198, 0.3); transform: translateY(-1px); }

.lexicon { padding-top: 13px; }
.section-heading { display: flex; align-items: end; gap: 18px; padding-bottom: 13px; border-bottom: 1px solid var(--line); }
.section-kicker { margin-bottom: 4px; font-size: 9px; }
.section-heading h2 { margin: 0; font-size: 16px; letter-spacing: -0.02em; }
.section-note { margin: 0 0 1px auto; color: var(--muted); font-size: 12px; text-align: right; }
.entry-list { display: grid; gap: 12px; margin-top: 14px; }
.entry-card { overflow: hidden; border: 1px solid var(--line); border-radius: 11px; background: var(--panel); box-shadow: 0 3px 10px rgba(26, 55, 100, 0.035); animation: rise-in 270ms ease both; }
.entry-card:nth-child(2) { animation-delay: 30ms; }
.entry-card:nth-child(3) { animation-delay: 60ms; }
.entry-card:nth-child(4) { animation-delay: 90ms; }
.entry-card:nth-child(5) { animation-delay: 120ms; }
.entry-header { display: flex; align-items: center; gap: 9px; padding: 16px 18px 13px; }
.entry-title { margin: 0; font-size: 17px; font-weight: 700; letter-spacing: -0.025em; }
.source-badge { padding: 2px 6px; border: 1px solid var(--line); border-radius: 4px; color: var(--muted); font-family: "JetBrains Mono", monospace; font-size: 9px; font-weight: 500; letter-spacing: 0.02em; }
.entry-meta { margin-left: auto; color: var(--muted); font-family: "JetBrains Mono", monospace; font-size: 10px; white-space: nowrap; }
.alias-line { display: flex; gap: 6px; padding: 0 18px 14px; color: var(--ink-soft); font-size: 12px; }
.alias-line strong { color: var(--muted); font-weight: 500; white-space: nowrap; }
.keyword-list { border-top: 1px solid var(--line-soft); }
.keyword-row { display: grid; grid-template-columns: 29px minmax(0, 1fr) auto; align-items: center; min-height: 47px; gap: 11px; padding: 7px 12px 7px 18px; border-bottom: 1px solid var(--line-soft); transition: background 150ms ease; }
.keyword-row:hover { background: var(--line-soft); }
.rank { color: var(--muted); font-family: "JetBrains Mono", monospace; font-size: 11px; font-weight: 600; }
.keyword { overflow-wrap: anywhere; color: var(--ink); font-family: "JetBrains Mono", monospace; font-size: 13px; font-weight: 600; }
.keyword-actions { display: flex; align-items: center; gap: 4px; }
.copy-button, .vote-button { display: inline-flex; align-items: center; gap: 4px; border-radius: 5px; color: var(--ink-soft); font-size: 11px; transition: background 130ms ease, color 130ms ease, transform 130ms ease; }
.copy-button { padding: 6px 7px; }
.copy-button:hover { color: var(--accent-strong); background: var(--accent-soft); }
.vote-button { min-width: 32px; padding: 6px 5px; justify-content: center; }
.vote-button:hover { transform: translateY(-1px); }
.vote-up:hover, .vote-up.is-active { color: var(--up); background: var(--up-soft); }
.vote-down:hover, .vote-down.is-active { color: var(--down); background: var(--down-soft); }
.entry-bottom { display: flex; align-items: center; min-height: 42px; padding: 8px 18px; background: color-mix(in srgb, var(--panel) 82%, var(--line-soft)); }
.expand-button, .inline-add { color: var(--accent-strong); font-size: 12px; font-weight: 600; }
.expand-button:hover, .inline-add:hover { text-decoration: underline; }
.entry-total { margin-left: auto; color: var(--muted); font-family: "JetBrains Mono", monospace; font-size: 10px; }
.pagination { display: flex; align-items: center; justify-content: center; gap: 8px; margin: 24px 0 4px; }
.pagination-pages { display: flex; align-items: center; gap: 5px; }
.pagination-page, .pagination-arrow { min-width: 32px; height: 32px; padding: 0 9px; border: 1px solid var(--line); border-radius: 7px; color: var(--ink-soft); background: var(--panel); font-size: 12px; transition: color 150ms ease, border-color 150ms ease, background 150ms ease; }
.pagination-page:hover, .pagination-arrow:not(:disabled):hover { color: var(--accent-strong); border-color: var(--accent); background: var(--accent-soft); }
.pagination-page.is-active { color: #fff; border-color: var(--accent); background: var(--accent); font-weight: 700; }
.pagination-arrow:disabled { cursor: default; opacity: 0.45; }
.pagination-ellipsis { padding: 0 2px; color: var(--muted); font-size: 13px; }

.empty-state { padding: 60px 18px; text-align: center; }
.empty-glyph { display: grid; place-items: center; width: 50px; height: 50px; margin: 0 auto 12px; border-radius: 50%; color: var(--accent); background: var(--accent-soft); font-family: serif; font-size: 35px; transform: rotate(-18deg); }
.empty-state h3 { margin: 0 0 5px; font-size: 17px; }
.empty-state p { margin: 0 0 17px; color: var(--ink-soft); font-size: 14px; }
.outline-button { padding: 8px 11px; border: 1px solid var(--accent); border-radius: 7px; color: var(--accent-strong); background: var(--accent-soft); font-size: 13px; font-weight: 600; }
.outline-button:hover { background: var(--accent); color: #fff; }

.site-footer { display: flex; align-items: center; justify-content: space-between; width: min(100%, 1050px); margin: 0 auto; padding: 20px 28px 28px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.footer-brand { color: var(--ink-soft); font-weight: 700; }
.footer-divider { margin: 0 5px; }
.text-button { padding: 2px 0; color: var(--accent-strong); font-size: 12px; font-weight: 600; }
.text-button:hover { text-decoration: underline; }

.modal-backdrop { position: fixed; inset: 0; z-index: 50; display: grid; place-items: center; padding: 24px; background: rgba(4, 10, 22, 0.52); backdrop-filter: blur(4px); }
.modal-backdrop[hidden] { display: none; }
.modal { position: relative; width: min(100%, 390px); padding: 33px 31px 26px; border: 1px solid var(--line); border-radius: 14px; color: var(--ink); background: var(--panel); box-shadow: 0 22px 65px rgba(4, 12, 28, 0.35); text-align: center; animation: modal-in 180ms ease both; }
.modal-mark { width: 38px; height: 38px; margin: 0 auto 16px; border-radius: 10px; font-size: 20px; }
.modal h2 { margin: 0 0 10px; font-size: 20px; letter-spacing: -0.04em; }
.modal p { margin: 0 0 21px; color: var(--ink-soft); font-size: 14px; line-height: 1.65; }
.modal-close { position: absolute; top: 10px; right: 13px; padding: 6px; color: var(--muted); font-size: 20px; line-height: 1; }
.modal-close:hover { color: var(--ink); }
.modal .primary-button { display: block; width: 100%; padding: 10px; }
.modal-secondary { display: inline-block; margin-top: 13px; color: var(--muted); font-weight: 500; }
.submission-form { display: grid; gap: 7px; text-align: left; }
.submission-form label { color: var(--ink-soft); font-size: 12px; font-weight: 600; }
.submission-form input, .submission-form select { width: 100%; min-height: 40px; margin-bottom: 6px; padding: 8px 10px; border: 1px solid var(--line); border-radius: 7px; color: var(--ink); background: var(--panel); outline: 0; }
.submission-form input:focus, .submission-form select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.category-mode { display: grid; grid-template-columns: 1fr 1fr; gap: 7px; margin: 0 0 5px; padding: 0; border: 0; }
.category-mode legend { width: 100%; margin-bottom: 5px; color: var(--ink-soft); font-size: 12px; font-weight: 600; }
.category-mode-option { display: flex; align-items: center; gap: 6px; padding: 8px 9px; border: 1px solid var(--line); border-radius: 7px; color: var(--ink-soft) !important; background: color-mix(in srgb, var(--panel) 88%, var(--line-soft)); font-size: 11px !important; font-weight: 500 !important; cursor: pointer; }
.category-mode-option:has(input:checked) { color: var(--accent-strong) !important; border-color: var(--accent); background: var(--accent-soft); }
.category-mode-option input { width: auto; min-height: 0; margin: 0; accent-color: var(--accent); }
.category-field { display: grid; gap: 7px; }
.category-field[hidden] { display: none; }
.submission-form .primary-button { margin-top: 5px; }
.submit-feedback { min-height: 18px; margin: 2px 0 0 !important; color: var(--down) !important; text-align: center; font-size: 12px !important; }
.toast { position: fixed; left: 50%; bottom: 24px; z-index: 60; display: inline-flex; align-items: center; gap: 7px; max-width: calc(100vw - 32px); padding: 9px 12px; border: 1px solid var(--line); border-radius: 8px; color: var(--ink); background: var(--panel); box-shadow: 0 8px 28px rgba(9, 24, 53, 0.18); font-size: 13px; transform: translateX(-50%); animation: toast-in 200ms ease both; }
.toast[hidden] { display: none; }
.toast > span:first-child { color: var(--up); font-weight: 700; }

@keyframes rise-in { from { opacity: 0; transform: translateY(9px); } to { opacity: 1; transform: translateY(0); } }
@keyframes modal-in { from { opacity: 0; transform: translateY(8px) scale(0.98); } to { opacity: 1; transform: none; } }
@keyframes toast-in { from { opacity: 0; transform: translate(-50%, 8px) scale(0.98); } to { opacity: 1; transform: translate(-50%, 0) scale(1); } }

@media (max-width: 640px) {
  .header-inner { min-height: 55px; padding: 9px 15px; }
  .brand-tagline, .header-actions .icon-button:first-child { display: none; }
  .brand-logo { width: 112px; height: 34px; }
  .brand-mark { width: 25px; height: 25px; }
  .announcement { padding: 10px 15px 0; }
  .announcement-inner { align-items: flex-start; font-size: 11.5px; line-height: 1.45; }
  .dismiss-announcement { margin-top: -2px; }
  .app-main { padding: 0 14px 40px; }
  .hero { padding: 39px 0 25px; }
  .hero h1 { margin-top: 8px; font-size: 31px; }
  .hero-copy { font-size: 14px; }
  .hero-contribute { align-items: flex-start; flex-direction: column; gap: 8px; margin-top: 18px; }
  .search-box { height: 53px; margin-top: 23px; padding-left: 13px; border-radius: 12px; }
  .search-box input { font-size: 16px; }
  .shortcut { display: none; }
  .hot-row { gap: 5px; }
  .section-heading { align-items: end; gap: 8px; }
  .section-note { max-width: 156px; font-size: 11px; }
  .pagination { justify-content: flex-start; gap: 4px; overflow-x: auto; padding: 0 2px 4px; }
  .pagination-pages { gap: 4px; }
  .entry-header { padding: 14px 13px 11px; }
  .entry-title { font-size: 16px; }
  .entry-meta { display: none; }
  .alias-line { padding: 0 13px 12px; }
  .keyword-row { grid-template-columns: minmax(0, 1fr) auto; gap: 8px; min-height: 50px; padding: 6px 8px 6px 13px; }
  .rank { display: none; }
  .keyword-actions { gap: 2px; }
  .copy-button { padding-inline: 5px; }
  .copy-button span { display: none; }
  .vote-button { padding-inline: 4px; }
  .entry-bottom { padding: 8px 13px; }
  .site-footer { display: block; padding: 18px 15px 24px; text-align: center; }
  .site-footer .text-button { display: inline-block; margin-top: 9px; }
  .category-mode { grid-template-columns: 1fr; }
}