/* ============================================================
   智汇社区 — Neo-Brutalism Design System
   种智创孵 × 转枢社区 × 上海专利银行 × 华南技术转移中心 联合共建
   ============================================================ */

/* ── CSS Variables ────────────────────────────────────── */
:root {
  /* Candy palette */
  --c-pink:       #FF1493;
  --c-pink-bg:    #FFE5F2;
  --c-yellow:     #FFE135;
  --c-yellow-bg:  #FFFBE6;
  --c-sky:        #00BFFF;
  --c-sky-bg:     #E5F9FF;
  --c-lime:       #32CD32;
  --c-lime-bg:    #EBFAEB;
  --c-orange:     #FF8C00;
  --c-orange-bg:  #FFF3E5;
  --c-purple:     #9B30FF;
  --c-purple-bg:  #F5EBFF;

  /* Neutrals */
  --c-text:       #0A0A0A;
  --c-page-bg:    #F5F5F0;
  --c-black:      #000000;
  --c-white:      #FFFFFF;

  /* Typography */
  --font-heading: 'Plus Jakarta Sans', sans-serif;
  --font-body:    'Inter', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;

  /* Shadows & borders (Neo-Brutalism: hard, no blur) */
  --shadow-sm:    4px 4px 0 var(--c-black);
  --shadow-md:    6px 6px 0 var(--c-black);
  --shadow-lg:    8px 8px 0 var(--c-black);
  --shadow-xl:    12px 12px 0 var(--c-black);
  --border:       3px solid var(--c-black);

  /* Spacing */
  --section-pad:  clamp(3rem, 6vw, 5rem);
  --content-max:  1200px;

  /* Easings */
  --ease-out:     cubic-bezier(0.16, 1, 0.3, 1);
  --ease-bounce:  cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ── Reset ────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
  font-family: var(--font-body);
  background: var(--c-page-bg);
  color: var(--c-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

button {
  font: inherit; cursor: pointer;
  border: none; background: none;
}

:focus-visible {
  outline: 4px solid var(--c-orange);
  outline-offset: 4px;
}

::selection { background: var(--c-yellow); color: var(--c-black); }

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); border: 0;
}

.container {
  width: 100%; max-width: var(--content-max);
  margin: 0 auto; padding: 0 clamp(1rem, 4vw, 2rem);
}

/* ── Reduced Motion ───────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}

/* ── Section Shared ───────────────────────────────────── */
.section-label {
  font-family: var(--font-mono);
  font-size: 0.75rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: #555; margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800; line-height: 1.1;
  letter-spacing: -0.02em; margin-bottom: 20px;
}

.section-desc {
  font-size: 1.05rem; color: #333;
  max-width: 55ch; margin-bottom: 48px;
}

.section-divider {
  height: 4px; background: var(--c-black);
  margin: var(--section-pad) 0 0;
}

/* ── Buttons ──────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 16px 32px; font-family: var(--font-heading);
  font-size: 1rem; font-weight: 800;
  border: var(--border);
  transition: transform 0.15s var(--ease-out),
              box-shadow 0.15s var(--ease-out);
}

.btn--primary {
  background: var(--c-black); color: var(--c-white);
  box-shadow: var(--shadow-sm);
}

.btn--primary:hover {
  transform: translate(-3px, -3px); box-shadow: var(--shadow-md);
}

.btn--primary:active { transform: translate(0, 3px); box-shadow: none; }

.btn--outline {
  background: var(--c-white); color: var(--c-black);
  box-shadow: var(--shadow-sm);
}

.btn--outline:hover {
  transform: translate(-3px, -3px); box-shadow: var(--shadow-md);
}

.btn--outline:active { transform: translate(0, 3px); box-shadow: none; }

.btn__arrow {
  font-size: 1.2rem;
  transition: transform 0.2s var(--ease-out);
}

.btn:hover .btn__arrow { transform: translateX(4px); }

/* ── Navigation ───────────────────────────────────────── */
.nav {
  position: sticky; top: 0; z-index: 1000;
  background: var(--c-pink-bg);
  border-bottom: var(--border);
}

.nav__inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px; max-width: var(--content-max);
  margin: 0 auto; padding: 0 clamp(1rem, 4vw, 2rem);
}

.nav__logo {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-heading);
  font-size: 1.3rem; font-weight: 800; letter-spacing: -0.02em;
}

.nav__logo-icon {
  width: 40px; height: 40px;
  background: var(--c-pink);
  border: var(--border);
  display: grid; place-items: center;
  color: var(--c-white);
  font-family: var(--font-mono);
  font-size: 1rem; font-weight: 700;
}

.nav__links {
  display: flex; align-items: center; gap: 4px;
  list-style: none;
}

.nav__link {
  display: inline-block; padding: 8px 16px;
  font-family: var(--font-mono);
  font-size: 0.78rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.04em;
  border: 2px solid transparent;
  transition: all 0.15s var(--ease-out);
}

.nav__link:hover,
.nav__link:focus-visible,
.nav__link.active {
  background: var(--c-yellow); border-color: var(--c-black);
}

.nav__toggle {
  display: none; flex-direction: column; gap: 5px;
  padding: 8px; background: var(--c-white); border: var(--border);
}

.nav__toggle span {
  display: block; width: 24px; height: 3px; background: var(--c-black);
}

@media (max-width: 768px) {
  .nav__links { display: none; }
  .nav__toggle { display: flex; }
  .nav__links.open {
    display: flex; flex-direction: column;
    position: absolute; top: 72px; left: 0; right: 0;
    background: var(--c-pink-bg); border-bottom: var(--border);
    padding: 16px; gap: 4px;
  }
  .nav__link { width: 100%; text-align: center; }
}

/* ── Footer ───────────────────────────────────────────── */
.footer {
  padding: clamp(2.5rem, 4vw, 3.5rem) 0 clamp(1.5rem, 3vw, 2rem);
  background: var(--c-black); color: var(--c-white);
  border-top: 6px solid var(--c-yellow);
}

.footer__grid {
  display: grid;
  grid-template-columns: minmax(280px, 1.55fr) repeat(3, minmax(130px, 0.7fr));
  gap: clamp(28px, 4vw, 64px);
  align-items: start;
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

.footer__brand-block {
  max-width: 440px;
}

.footer__identity {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--c-white);
  text-decoration: none;
  margin-bottom: 16px;
}

.footer__mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 3px solid var(--c-white);
  background: var(--c-pink);
  color: var(--c-black);
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 800;
}

.footer__brand {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 0;
}

.footer__brand-desc {
  font-size: 0.84rem;
  color: #b8b8b8;
  line-height: 1.7;
  max-width: 42ch;
}

.footer__partners {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid #333;
  color: #8f8f8f;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  line-height: 1.7;
}

.footer__partners strong {
  display: block;
  margin-bottom: 3px;
  color: var(--c-yellow);
  font-weight: 700;
}

.footer__col-title {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0;
  color: var(--c-yellow);
  margin-bottom: 14px;
}

.footer__links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer__link {
  display: inline-flex;
  width: fit-content;
  max-width: 100%;
  font-size: 0.84rem;
  color: #c7c7c7;
  line-height: 1.5;
  overflow-wrap: anywhere;
  transition: color 0.15s, transform 0.15s;
}

.footer__link:hover,
.footer__link[aria-current="page"] {
  color: var(--c-yellow);
  transform: translateX(3px);
}

.footer__contact {
  display: inline-block;
  margin-top: 14px;
  padding-bottom: 3px;
  border-bottom: 2px solid var(--c-yellow);
  color: var(--c-white);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  overflow-wrap: anywhere;
}

.footer__contact:hover { color: var(--c-yellow); }

.footer__bottom {
  padding-top: 20px;
  border-top: 1px solid #333;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 12px 24px;
  font-size: 0.75rem;
  color: #858585;
}

.footer__bottom-note {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  color: #777;
}

.footer__bottom-links { display: flex; gap: 20px; }

@media (max-width: 900px) {
  .footer__grid {
    grid-template-columns: minmax(0, 1.4fr) repeat(2, minmax(130px, 0.8fr));
  }

  .footer__brand-block { grid-column: 1 / -1; max-width: 100%; }
}

@media (max-width: 600px) {
  .footer { padding-top: 36px; }
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 28px 20px; }
  .footer__brand-block { grid-column: 1 / -1; }
  .footer__grid > nav:last-child { grid-column: 1 / -1; }
  .footer__grid > nav:last-child .footer__links {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px 20px;
  }
  .footer__bottom { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 380px) {
  .footer__grid { grid-template-columns: 1fr; }
  .footer__brand-block { grid-column: auto; }
  .footer__grid > nav:last-child { grid-column: auto; }
  .footer__grid > nav:last-child .footer__links {
    display: flex;
    grid-template-columns: none;
  }
}

/* ── Scroll-Reveal (progressive enhancement) ──────────── */
.reveal {
  opacity: 1; transform: none;
  transition: opacity 0.7s var(--ease-out),
              transform 0.7s var(--ease-out);
}

.reveal.is-hidden {
  opacity: 0; transform: translateY(36px);
}

.reveal.is-visible {
  opacity: 1; transform: translateY(0);
}

.reveal-stagger > * {
  opacity: 1; transform: none;
  transition: opacity 0.6s var(--ease-out),
              transform 0.6s var(--ease-out);
}

.reveal-stagger > *.is-hidden {
  opacity: 0; transform: translateY(36px);
}

.reveal-stagger > *.is-visible {
  opacity: 1; transform: translateY(0);
}

/* ── Back to Top ──────────────────────────────────────── */
.back-to-top {
  position: fixed; bottom: 28px; right: 28px;
  width: 50px; height: 50px;
  background: var(--c-black); color: var(--c-white);
  border: var(--border); box-shadow: var(--shadow-sm);
  display: grid; place-items: center;
  font-size: 1.3rem; z-index: 999;
  transition: transform 0.2s var(--ease-out),
              box-shadow 0.2s var(--ease-out),
              opacity 0.3s var(--ease-out);
  opacity: 0; pointer-events: none;
}

.back-to-top.visible { opacity: 1; pointer-events: auto; }

.back-to-top:hover {
  transform: translate(-3px, -3px); box-shadow: var(--shadow-md);
}

.back-to-top:active { transform: translate(0, 3px); box-shadow: none; }

/* ── Hero (shared across pages) ───────────────────────── */
.hero {
  position: relative; padding: var(--section-pad) 0;
  background: var(--c-yellow-bg);
  border-bottom: var(--border); overflow: hidden;
}

.hero__texture {
  position: absolute; inset: 0; width: 100%; height: 100%;
  pointer-events: none;
}

.hero__inner { position: relative; z-index: 1; }

.hero__badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 16px; background: var(--c-white);
  border: var(--border);
  font-family: var(--font-mono);
  font-size: 0.75rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.06em;
  margin-bottom: 24px; box-shadow: var(--shadow-sm);
}

.hero__badge-dot {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--c-lime); border: 2px solid var(--c-black);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.hero__title {
  font-family: var(--font-heading);
  font-size: clamp(2.4rem, 7vw, 5rem);
  font-weight: 800; line-height: 1.05;
  letter-spacing: -0.03em; max-width: 16ch; margin-bottom: 24px;
}

.hero__title em {
  font-style: italic; display: inline-block; position: relative;
}

.hero__title em::after {
  content: ''; position: absolute; bottom: 4px; left: 0;
  width: 100%; height: 12px;
  background: var(--c-pink); opacity: 0.4; z-index: -1;
}

.hero__subtitle {
  font-size: clamp(0.95rem, 1.8vw, 1.2rem);
  color: #333; max-width: 55ch; margin-bottom: 32px; line-height: 1.65;
}

.hero__stats {
  display: flex; gap: clamp(24px, 5vw, 60px);
  margin-top: 48px; padding-top: 32px;
  border-top: 2px dashed var(--c-black);
}

.hero__stat-value {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800; line-height: 1;
}

.hero__stat-value--pink { color: var(--c-pink); }
.hero__stat-value--sky  { color: var(--c-sky); }
.hero__stat-value--lime { color: var(--c-lime); }

.hero__stat-label {
  font-family: var(--font-mono);
  font-size: 0.72rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.04em;
  margin-top: 6px; color: #444;
}

@media (max-width: 768px) {
  .hero__stats { flex-wrap: wrap; }
}

/* ── Partner tags ─────────────────────────────────────── */
.partner-tags {
  display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 32px;
}

.partner-tag {
  padding: 6px 14px; font-family: var(--font-mono);
  font-size: 0.72rem; font-weight: 700;
  background: var(--c-white);
  border: 2px solid var(--c-black);
  box-shadow: 3px 3px 0 var(--c-black);
}

.partner-tag:nth-child(1) { border-color: var(--c-pink);   box-shadow: 3px 3px 0 var(--c-pink); }
.partner-tag:nth-child(2) { border-color: var(--c-sky);    box-shadow: 3px 3px 0 var(--c-sky); }
.partner-tag:nth-child(3) { border-color: var(--c-lime);   box-shadow: 3px 3px 0 var(--c-lime); }
.partner-tag:nth-child(4) { border-color: var(--c-purple); box-shadow: 3px 3px 0 var(--c-purple); }

/* ── Skill Cards ──────────────────────────────────────── */
.skill-card {
  background: var(--c-white); border: var(--border);
  padding: 28px; box-shadow: var(--shadow-sm);
  transition: transform 0.25s var(--ease-out),
              box-shadow 0.25s var(--ease-out);
}

.skill-card:hover {
  transform: translate(-4px, -4px); box-shadow: var(--shadow-lg);
}

.skill-card:nth-child(1) { border-left: 6px solid var(--c-pink); }
.skill-card:nth-child(2) { border-left: 6px solid var(--c-sky); }
.skill-card:nth-child(3) { border-left: 6px solid var(--c-lime); }
.skill-card:nth-child(4) { border-left: 6px solid var(--c-orange); }
.skill-card:nth-child(5) { border-left: 6px solid var(--c-purple); }
.skill-card:nth-child(6) { border-left: 6px solid var(--c-yellow); }

.skill-card__icon {
  width: 52px; height: 52px; display: grid; place-items: center;
  border: var(--border); margin-bottom: 20px; font-size: 1.5rem;
}

.skill-card:nth-child(1) .skill-card__icon { background: var(--c-pink-bg); }
.skill-card:nth-child(2) .skill-card__icon { background: var(--c-sky-bg); }
.skill-card:nth-child(3) .skill-card__icon { background: var(--c-lime-bg); }
.skill-card:nth-child(4) .skill-card__icon { background: var(--c-orange-bg); }
.skill-card:nth-child(5) .skill-card__icon { background: var(--c-purple-bg); }
.skill-card:nth-child(6) .skill-card__icon { background: var(--c-yellow-bg); }

.skill-card__name {
  font-family: var(--font-heading);
  font-size: 1.15rem; font-weight: 800; margin-bottom: 8px;
}

.skill-card__desc {
  font-size: 0.9rem; color: #444; margin-bottom: 20px; line-height: 1.5;
}

.skill-card__progress {
  display: flex; align-items: center; gap: 12px;
}

.skill-card__bar {
  flex: 1; height: 16px; background: var(--c-page-bg);
  border: 2px solid var(--c-black); position: relative; overflow: hidden;
}

.skill-card__bar-fill {
  height: 100%; width: 0;
  transition: width 1.2s var(--ease-out);
}

.skill-card:nth-child(1) .skill-card__bar-fill { background: var(--c-pink); }
.skill-card:nth-child(2) .skill-card__bar-fill { background: var(--c-sky); }
.skill-card:nth-child(3) .skill-card__bar-fill { background: var(--c-lime); }
.skill-card:nth-child(4) .skill-card__bar-fill { background: var(--c-orange); }
.skill-card:nth-child(5) .skill-card__bar-fill { background: var(--c-purple); }
.skill-card:nth-child(6) .skill-card__bar-fill { background: var(--c-yellow); }

.skill-card__bar-fill::after {
  content: ''; position: absolute; inset: 0;
  background: repeating-linear-gradient(
    -45deg, transparent, transparent 3px,
    rgba(0,0,0,0.08) 3px, rgba(0,0,0,0.08) 6px
  );
}

.skill-card__pct {
  font-family: var(--font-mono);
  font-size: 0.85rem; font-weight: 700;
  min-width: 42px; text-align: right;
}

.skills__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.community-library-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 22px;
}

.community-library-header > div { min-width: 0; }

.review-publish-flow {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-bottom: 8px;
  border: var(--border);
  background: var(--c-white);
  box-shadow: var(--shadow-sm);
}

.review-publish-flow > div {
  min-width: 0;
  padding: 18px;
  border-right: 2px solid var(--c-black);
}

.review-publish-flow > div:last-child { border-right: 0; }

.review-publish-flow strong,
.review-publish-flow span { display: block; }

.review-publish-flow strong {
  margin-bottom: 5px;
  font-family: var(--font-heading);
  font-size: 0.9rem;
}

.review-publish-flow span {
  color: #555;
  font-size: 0.78rem;
  line-height: 1.45;
}

@media (max-width: 700px) {
  .community-library-header { align-items: stretch; flex-direction: column; }
  .community-library-header .btn { text-align: center; }
  .review-publish-flow { grid-template-columns: 1fr; }
  .review-publish-flow > div { border-right: 0; border-bottom: 2px solid var(--c-black); }
  .review-publish-flow > div:last-child { border-bottom: 0; }
}

/* Skill library filtering */
.skill-filter {
  margin-bottom: 28px;
  padding: 20px;
  border: var(--border);
  background: var(--c-white);
  box-shadow: var(--shadow-sm);
}

.skill-filter__topline {
  display: flex;
  align-items: stretch;
  gap: 10px;
  margin-bottom: 16px;
}

.skill-filter__search {
  min-width: 0;
  flex: 1;
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) 40px;
  align-items: center;
  border: 2px solid var(--c-black);
  background: var(--c-page-bg);
}

.skill-filter__search:focus-within {
  outline: 3px solid var(--c-sky);
  outline-offset: 2px;
}

.skill-filter__search-icon {
  text-align: center;
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
}

.skill-filter__search input {
  min-width: 0;
  height: 44px;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--c-black);
  font: 700 0.82rem var(--font-mono);
  letter-spacing: 0;
}

.skill-filter__search input::placeholder { color: #777; }
.skill-filter__search input::-webkit-search-cancel-button { display: none; }

.skill-filter__clear {
  width: 40px;
  height: 40px;
  border: 0;
  background: transparent;
  color: var(--c-black);
  font-size: 1.4rem;
  font-weight: 800;
  cursor: pointer;
}

.skill-filter__clear:hover { background: var(--c-pink-bg); }

.skill-filter__reset {
  min-width: 96px;
  padding: 0 14px;
  border: 2px solid var(--c-black);
  background: var(--c-white);
  box-shadow: 2px 2px 0 var(--c-black);
  color: var(--c-black);
  font: 800 0.75rem var(--font-mono);
  cursor: pointer;
}

.skill-filter__reset:hover { background: var(--c-yellow-bg); }

.skill-filter__categories {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.skill-filter__button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 38px;
  padding: 7px 10px;
  border: 2px solid var(--c-black);
  background: var(--c-white);
  color: var(--c-black);
  font: 800 0.72rem var(--font-mono);
  letter-spacing: 0;
  cursor: pointer;
  box-shadow: 2px 2px 0 var(--c-black);
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.skill-filter__button:hover {
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0 var(--c-black);
  background: var(--c-yellow-bg);
}

.skill-filter__button.active {
  transform: translate(2px, 2px);
  box-shadow: none;
  background: var(--c-yellow);
}

.skill-filter__button:focus-visible,
.skill-filter__reset:focus-visible,
.skill-filter__clear:focus-visible {
  outline: 3px solid var(--c-sky);
  outline-offset: 2px;
}

.skill-filter__count {
  min-width: 24px;
  padding: 1px 5px;
  border: 1px solid var(--c-black);
  background: rgba(255, 255, 255, 0.75);
  text-align: center;
}

.skill-filter__status {
  margin-top: 14px;
  color: #555;
  font: 700 0.75rem var(--font-mono);
}

.skill-card__category {
  display: inline-flex;
  margin: -8px 0 14px;
  padding: 4px 8px;
  border: 1px solid var(--c-black);
  background: var(--c-page-bg);
  font: 700 0.66rem var(--font-mono);
  letter-spacing: 0;
}

.skill-filter__empty {
  padding: clamp(40px, 8vw, 72px) 20px;
  border: 2px dashed var(--c-black);
  background: var(--c-white);
  text-align: center;
}

.skill-filter__empty-icon {
  margin-bottom: 12px;
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1;
}

.skill-filter__empty h3 {
  margin-bottom: 6px;
  font-family: var(--font-heading);
  font-size: 1.2rem;
}

.skill-filter__empty p { margin-bottom: 20px; color: #555; }

@media (max-width: 700px) {
  .skill-filter { padding: 14px; }
  .skill-filter__reset { min-width: 84px; padding: 0 10px; }
  .skill-filter__categories {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }
  .skill-filter__button { justify-content: space-between; }
}

@media (max-width: 420px) {
  .skill-filter__topline { flex-direction: column; }
  .skill-filter__reset { min-height: 40px; }
  .skill-filter__categories { grid-template-columns: 1fr; }
}

/* ── Bento Grid ───────────────────────────────────────── */
.bento {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: auto auto;
  gap: 20px;
}

.bento__item {
  border: var(--border); padding: 32px 28px;
  background: var(--c-white); box-shadow: var(--shadow-sm);
  transition: transform 0.3s var(--ease-out),
              box-shadow 0.3s var(--ease-out);
  position: relative; overflow: hidden;
}

.bento__item:hover {
  transform: translate(-4px, -4px); box-shadow: var(--shadow-xl);
}

.bento__item--lg   { grid-column: span 2; grid-row: span 2; }
.bento__item--wide { grid-column: span 2; }

.bento__item:nth-child(1) { background: var(--c-pink-bg); }
.bento__item:nth-child(2) { background: var(--c-sky-bg); }
.bento__item:nth-child(3) { background: var(--c-lime-bg); }
.bento__item:nth-child(4) { background: var(--c-purple-bg); }

.bento__tag {
  display: inline-block; padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 0.7rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.04em;
  background: var(--c-white); border: 2px solid var(--c-black);
  margin-bottom: 16px;
}

.bento__title {
  font-family: var(--font-heading);
  font-size: clamp(1.2rem, 2.5vw, 1.7rem);
  font-weight: 800; line-height: 1.15;
  margin-bottom: 10px; letter-spacing: -0.01em;
}

.bento__desc {
  font-size: 0.9rem; color: #444; line-height: 1.5; margin-bottom: 20px;
}

.bento__stats {
  display: flex; gap: 24px; margin-top: auto;
}

.bento__stat-num {
  font-family: var(--font-heading);
  font-size: 1.8rem; font-weight: 800;
}

.bento__stat-label {
  font-family: var(--font-mono);
  font-size: 0.7rem; font-weight: 700;
  text-transform: uppercase; color: #555;
}

@media (max-width: 1024px) {
  .bento {
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: auto;
  }
  .bento__item--lg,
  .bento__item--wide { grid-column: span 2; }
}

@media (max-width: 768px) {
  .bento {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
  }
  .bento__item--lg,
  .bento__item--wide { grid-column: span 1; grid-row: span 1; }
}

/* ── Timeline ─────────────────────────────────────────── */
.timeline {
  position: relative; padding-left: 40px;
}

.timeline::before {
  content: ''; position: absolute; left: 18px; top: 4px; bottom: 4px;
  width: 4px; background: var(--c-black);
}

.timeline__item {
  position: relative; padding-bottom: 48px; padding-left: 32px;
}

.timeline__item:last-child { padding-bottom: 0; }

.timeline__dot {
  position: absolute; left: -33px; top: 4px;
  width: 24px; height: 24px;
  border: var(--border); background: var(--c-white);
}

.timeline__item:nth-child(1) .timeline__dot { background: var(--c-pink); }
.timeline__item:nth-child(2) .timeline__dot { background: var(--c-sky); }
.timeline__item:nth-child(3) .timeline__dot { background: var(--c-lime); }
.timeline__item:nth-child(4) .timeline__dot { background: var(--c-orange); }

.timeline__year {
  font-family: var(--font-mono);
  font-size: 0.8rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.06em;
  color: #555; margin-bottom: 6px;
}

.timeline__title {
  font-family: var(--font-heading);
  font-size: 1.35rem; font-weight: 800;
  margin-bottom: 8px; letter-spacing: -0.01em;
}

.timeline__desc {
  font-size: 0.92rem; color: #444; max-width: 55ch; line-height: 1.5;
}

/* ── CTA (yellow background) ──────────────────────────── */
.cta-section {
  padding: var(--section-pad) 0;
  background: var(--c-yellow-bg);
  border-bottom: var(--border);
  position: relative; overflow: hidden;
}

.cta__stripes {
  position: absolute; inset: 0; pointer-events: none;
}

.cta__inner {
  position: relative; z-index: 1; text-align: center;
}

.cta__title {
  font-family: var(--font-heading);
  font-size: clamp(1.9rem, 5vw, 3.5rem);
  font-weight: 800; line-height: 1.1;
  letter-spacing: -0.02em; margin-bottom: 20px;
  max-width: 22ch; margin-left: auto; margin-right: auto;
}

.cta__desc {
  font-size: 1rem; color: #333;
  max-width: 48ch; margin: 0 auto 36px; line-height: 1.6;
}

.cta__form {
  display: flex; gap: 12px;
  max-width: 480px; margin: 0 auto 24px;
  flex-wrap: wrap; justify-content: center;
}

.cta__input {
  flex: 1; min-width: 200px; padding: 14px 18px;
  font-family: var(--font-body); font-size: 0.95rem;
  border: var(--border); background: var(--c-white);
  box-shadow: var(--shadow-sm);
}

.cta__input:focus-visible {
  outline: 4px solid var(--c-black); outline-offset: 2px;
}

.cta__note {
  font-family: var(--font-mono); font-size: 0.72rem; color: #666;
}

/* ── Page-specific sections ───────────────────────────── */
.page-header {
  padding: clamp(2rem, 4vw, 3.5rem) 0;
  background: var(--c-white);
  border-bottom: var(--border);
}

/* ── About card ───────────────────────────────────────── */
.about-card {
  border: var(--border); padding: clamp(28px, 5vw, 56px);
  background: var(--c-white); box-shadow: var(--shadow-md);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.about-card p + p { margin-top: 16px; }
.about-card p { font-size: 0.95rem; line-height: 1.7; }

.about-card__visual {
  width: 100%; aspect-ratio: 16/10;
  border: var(--border); background: var(--c-yellow-bg);
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}

.about-features {
  display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px;
}

.about-chip {
  padding: 6px 14px; font-family: var(--font-mono);
  font-size: 0.72rem; font-weight: 700;
  border: 2px solid var(--c-black); background: var(--c-white);
}

.about-chip:nth-child(1) { background: var(--c-pink-bg); }
.about-chip:nth-child(2) { background: var(--c-sky-bg); }
.about-chip:nth-child(3) { background: var(--c-lime-bg); }
.about-chip:nth-child(4) { background: var(--c-purple-bg); }

@media (max-width: 768px) {
  .about-card { grid-template-columns: 1fr; }
}

/* ── Breadcrumb ───────────────────────────────────────── */
.breadcrumb {
  display: flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 0.72rem;
  color: #777; margin-bottom: 8px;
}

.breadcrumb a { color: var(--c-black); font-weight: 700; }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb span { color: #999; }

/* ── Feat Grid (工具分类卡片) ───────────────────────────── */
.feat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
@media (max-width: 900px) { .feat-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .feat-grid { grid-template-columns: 1fr; } }

.feat-card {
  border: 3px solid var(--c-black);
  box-shadow: 5px 5px 0 var(--c-black);
  background: var(--c-white);
  padding: 24px 20px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  cursor: default;
}
.feat-card:hover {
  transform: translate(-3px, -3px);
  box-shadow: 8px 8px 0 var(--c-black);
}
.feat-card:focus-visible {
  outline: 3px solid var(--c-orange);
  outline-offset: 2px;
}
.feat-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  font-size: 1.4rem;
  border: 2px solid var(--c-black);
  margin-bottom: 14px;
  font-style: normal;
}
.feat-card__title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--c-black);
  margin-bottom: 8px;
  line-height: 1.3;
}
.feat-card__desc {
  font-size: 0.85rem;
  color: #444;
  line-height: 1.65;
}

/* ── Tool Detail Card (深度介绍卡片) ─────────────────────── */
.tool-detail {
  border: 3px solid var(--c-black);
  box-shadow: 6px 6px 0 var(--c-black);
  background: var(--c-white);
  padding: clamp(28px, 4vw, 40px);
  margin-bottom: 28px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.tool-detail:hover {
  transform: translate(-2px, -2px);
  box-shadow: 9px 9px 0 var(--c-black);
}
.tool-detail__badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 4px 10px;
  border: 2px solid var(--c-black);
  margin-bottom: 12px;
}
.tool-detail__body p {
  font-size: 0.92rem;
  color: #444;
  line-height: 1.7;
  margin-bottom: 8px;
}
.tool-detail__svg-wrap {
  border: 3px solid var(--c-black);
  background: #fff;
  overflow: hidden;
}
.tool-detail__svg-wrap svg {
  display: block;
  width: 100%;
  height: auto;
}

.tool-type-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

@media (max-width: 768px) {
  .tool-detail { padding: 24px 20px; }
  .tool-type-grid { grid-template-columns: 1fr; }
}

/* ── Auth & Forms ─────────────────────────────────────── */
.auth-page {
  min-height: calc(100vh - 72px);
  display: flex; align-items: center; justify-content: center;
  padding: 2rem 1rem;
  background: var(--c-page-bg);
}

.auth-box {
  width: 100%; max-width: 460px;
  border: var(--border); background: var(--c-white);
  box-shadow: var(--shadow-lg); padding: 40px 36px;
}

.auth-box__title {
  font-family: var(--font-heading);
  font-size: 1.8rem; font-weight: 800;
  letter-spacing: -0.02em; margin-bottom: 8px;
}

.auth-box__subtitle {
  font-size: 0.9rem; color: #666; margin-bottom: 32px;
}

.auth-tab {
  transition: background 0.15s, color 0.15s;
}

.auth-tab.active {
  background: var(--c-yellow) !important;
  color: var(--c-black) !important;
}

.auth-tab:not(.active) {
  background: var(--c-white) !important;
  color: #555 !important;
}

.auth-tab:not(.active):hover {
  background: var(--c-yellow-bg) !important;
}

.form-group { margin-bottom: 20px; }

.upload-layout {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(240px, 1fr);
  gap: 32px;
  max-width: 1000px;
}

@media (max-width: 760px) {
  .upload-layout { grid-template-columns: 1fr; }
  .upload-layout form { padding: 24px !important; }
}

.form-label {
  display: block; font-family: var(--font-mono);
  font-size: 0.72rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.06em;
  color: #555; margin-bottom: 6px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%; padding: 14px 16px;
  font-family: var(--font-body); font-size: 0.92rem;
  border: var(--border); background: var(--c-white);
  box-shadow: var(--shadow-sm); transition: box-shadow 0.15s;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none; box-shadow: 4px 4px 0 var(--c-pink);
}

.form-textarea { resize: vertical; min-height: 100px; line-height: 1.5; }

.form-hint {
  font-family: var(--font-mono); font-size: 0.7rem;
  color: #888; margin-top: 4px;
}

.form-error {
  font-family: var(--font-mono); font-size: 0.7rem;
  color: var(--c-pink); font-weight: 700; margin-top: 4px;
  min-height: 18px;
}

.form-row {
  display: flex; gap: 12px;
}

.form-row > * { flex: 1; }

.training-fields {
  margin: 0 0 20px;
  padding: 20px 20px 4px;
  border: var(--border);
  background: var(--c-sky-bg);
}

.training-fields legend {
  padding: 0 8px;
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 800;
}

.submission-flow {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr)) auto;
  align-items: center;
  gap: 12px;
  margin-top: 24px;
  padding: 18px;
  border: var(--border);
  background: var(--c-page-bg);
  box-shadow: var(--shadow-sm);
}

.submission-flow__step {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  font-size: 0.8rem;
  font-weight: 700;
}

.submission-flow__step strong {
  display: grid;
  flex: 0 0 30px;
  width: 30px;
  height: 30px;
  place-items: center;
  border: 2px solid var(--c-black);
  background: var(--c-yellow);
  font-family: var(--font-mono);
}

@media (max-width: 900px) {
  .submission-flow { grid-template-columns: 1fr; }
  .submission-flow .btn { justify-self: start; }
}

@media (max-width: 600px) {
  .form-row { flex-direction: column; gap: 0; }
  .training-fields { padding: 16px 14px 2px; }
  .submission-flow .btn { width: 100%; justify-content: center; }
}

.form-actions {
  display: flex; gap: 12px; margin-top: 28px;
  flex-wrap: wrap;
}

.form-link {
  font-family: var(--font-mono); font-size: 0.78rem;
  color: #555; margin-top: 20px; text-align: center;
}

.form-link a { color: var(--c-pink); font-weight: 700; text-decoration: underline; }
.form-link a:hover { color: var(--c-black); }

/* ── Auth nav user area ───────────────────────────────── */
.nav__user {
  display: flex; align-items: center; gap: 12px;
}

.nav__user-name {
  font-family: var(--font-mono);
  font-size: 0.78rem; font-weight: 700;
  color: var(--c-black);
  padding: 6px 14px; background: var(--c-white);
  border: 2px solid var(--c-black);
}

.nav__admin-link {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  cursor: pointer;
}

.nav__admin-link:hover,
.nav__admin-link:focus-visible {
  background: var(--c-purple);
  color: var(--c-white);
  outline: 2px solid var(--c-black);
  outline-offset: 2px;
}

.nav__user-logout {
  font-family: var(--font-mono);
  font-size: 0.72rem; font-weight: 700;
  color: var(--c-pink); text-transform: uppercase;
  padding: 6px 0; cursor: pointer;
}

.nav__user-logout:hover { text-decoration: underline; }

.nav__login-btn {
  padding: 10px 20px; font-family: var(--font-heading);
  font-size: 0.85rem; font-weight: 800;
  background: var(--c-black); color: var(--c-white);
  border: var(--border); transition: all 0.15s var(--ease-out);
}

.nav__login-btn:hover {
  background: var(--c-pink);
  transform: translate(-2px, -2px); box-shadow: var(--shadow-sm);
}

@media (max-width: 768px) {
  .nav__user { margin-left: auto; }
}

/* ── Dashboard / Admin Tables ─────────────────────────── */
.data-table {
  width: 100%; border: var(--border); border-collapse: collapse;
  background: var(--c-white); box-shadow: var(--shadow-sm);
}

.data-table th,
.data-table td {
  padding: 14px 18px; border-bottom: 2px solid #e0e0d8;
  font-size: 0.88rem; text-align: left;
}

.data-table th {
  font-family: var(--font-mono);
  font-size: 0.7rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.06em;
  color: #555; background: #f8f8f4;
}

.data-table tr:last-child td { border-bottom: none; }

.data-table tr:hover td { background: var(--c-yellow-bg); }

.dashboard-table-wrap {
  width: 100%;
  max-width: 100%;
  margin-top: 24px;
  padding: 0 4px 6px 0;
  overflow-x: auto;
}

.dashboard-submission-table { min-width: 780px; }

.admin-manage {
  margin: 48px 0;
}

.admin-manage__heading {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 16px;
  margin-bottom: 16px;
}

.admin-manage__heading h3 {
  margin: 0 0 5px;
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 800;
}

.admin-manage__heading p {
  margin: 0;
  color: #555;
  font-size: 0.86rem;
  line-height: 1.55;
}

.admin-manage__empty {
  padding: 24px;
  border: 2px dashed #aaa;
  background: var(--c-white);
  color: #666;
  font-size: 0.84rem;
  text-align: center;
}

.admin-table-wrap {
  max-width: 100%;
  padding: 0 4px 6px 0;
  overflow-x: auto;
}

.admin-pending-attachment {
  margin-top: 12px;
  padding: 12px;
  border: 2px solid var(--c-black);
  background: var(--c-yellow-bg);
  font-size: 0.78rem;
  line-height: 1.7;
  overflow-wrap: anywhere;
}

.admin-pending-attachment code {
  font-size: 0.68rem;
}

.admin-pending-attachment .admin-inline-action {
  display: inline-flex;
  margin-top: 8px;
}

.admin-resource-table { min-width: 780px; }
.admin-user-table { min-width: 1040px; }
.admin-subscriber-table { min-width: 640px; }

.admin-settings {
  margin-bottom: 36px;
  padding: 24px;
  border: var(--border);
  background: var(--c-white);
  box-shadow: var(--shadow-sm);
}

.admin-password-form {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr)) auto;
  align-items: end;
  gap: 14px;
  margin-top: 20px;
}

.admin-password-form .form-group { margin: 0; }
.admin-password-form .form-error { grid-column: 1 / -1; }

.admin-resource-table td > strong,
.admin-resource-table td > small,
.admin-user-table td > strong,
.admin-user-table td > small {
  display: block;
}

.admin-resource-table td > small,
.admin-user-table td > small {
  margin-top: 4px;
  color: #777;
  font-size: 0.72rem;
  line-height: 1.45;
}

.admin-actions {
  display: flex;
  gap: 8px;
  align-items: center;
  white-space: nowrap;
}

.admin-actions .btn {
  min-width: 72px;
  padding: 8px 12px;
  font-size: 0.76rem;
}

.btn--withdraw { border-color: var(--c-orange) !important; color: var(--c-orange) !important; }
.btn--delete-resource { border-color: var(--c-pink) !important; color: var(--c-pink) !important; }
.btn--restore { background: var(--c-lime) !important; color: var(--c-black) !important; }
.btn--suspend-user { border-color: var(--c-orange) !important; color: var(--c-orange) !important; }
.btn--delete-user { border-color: var(--c-pink) !important; color: var(--c-pink) !important; }

.admin-protected-account {
  color: #777;
  font: 700 0.72rem var(--font-mono);
}

.user-avatar {
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  flex: 0 0 36px;
  overflow: hidden;
  border: 2px solid var(--c-black);
  border-radius: 50%;
  background: var(--c-sky-bg);
  color: var(--c-black);
  font: 800 0.78rem var(--font-heading);
}

.user-avatar img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.user-avatar--large {
  width: 92px;
  height: 92px;
  flex-basis: 92px;
  border-width: 3px;
  font-size: 1.8rem;
}

.user-avatar--fallback { background: var(--c-yellow); }

.dashboard-profile {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-bottom: 28px;
  padding: 24px;
  border: var(--border);
  background: var(--c-white);
  box-shadow: var(--shadow-sm);
}

.dashboard-profile__body { min-width: 0; flex: 1; }
.dashboard-profile__body h2 { margin: 4px 0 6px; font-family: var(--font-heading); font-size: 1.35rem; }
.dashboard-profile__body p { color: #555; font-size: 0.84rem; line-height: 1.55; }
.dashboard-profile__actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.dashboard-profile__actions .btn { padding: 8px 14px; font-size: 0.78rem; }
.dashboard-profile__hint { display: block; margin-top: 10px; color: #777; font-size: 0.72rem; }

.resource-author {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  color: #777;
  font-family: var(--font-mono);
}

.resource-author > span:last-child { display: block; min-width: 0; }
.resource-author strong,
.resource-author small { display: block; }
.resource-author strong { max-width: 180px; overflow: hidden; color: #333; font-size: 0.7rem; text-overflow: ellipsis; white-space: nowrap; }
.resource-author small { margin-top: 2px; font-size: 0.62rem; }

.admin-user-identity { display: flex; align-items: center; gap: 10px; min-width: 220px; }
.admin-user-identity > div { min-width: 0; }

.user-edit-modal[hidden] { display: none; }

.user-edit-modal {
  position: fixed;
  inset: 0;
  z-index: 4000;
  display: grid;
  place-items: center;
  padding: 20px;
}

.user-edit-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgb(10 10 10 / 68%);
}

.user-edit-modal__dialog {
  position: relative;
  width: min(720px, 100%);
  max-height: calc(100vh - 40px);
  overflow-y: auto;
  border: var(--border);
  background: var(--c-white);
  box-shadow: 8px 8px 0 var(--c-black);
  padding: 28px;
}

.user-edit-modal__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 24px;
}

.user-edit-modal__header h3 {
  margin: 6px 0 0;
  font-family: var(--font-heading);
  font-size: 1.4rem;
}

.user-edit-modal__close {
  width: 40px;
  height: 40px;
  flex: 0 0 40px;
  border: 2px solid var(--c-black);
  background: var(--c-pink-bg);
  color: var(--c-black);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
}

.user-edit-modal__close:hover { background: var(--c-pink); color: var(--c-white); }
.modal-open { overflow: hidden; }

.admin-inline-action {
  border-bottom: 2px solid var(--c-black);
  background: transparent;
  color: var(--c-black);
  font: 700 0.72rem var(--font-mono);
  cursor: pointer;
}

.admin-inline-action:hover { color: var(--c-purple); border-color: var(--c-purple); }

@media (max-width: 600px) {
  .admin-manage { margin: 36px 0; }
  .admin-manage__heading { align-items: flex-start; flex-direction: column; }
  .user-edit-modal { padding: 10px; }
  .user-edit-modal__dialog { max-height: calc(100vh - 20px); padding: 20px 16px; box-shadow: 4px 4px 0 var(--c-black); }
  .dashboard-profile { align-items: flex-start; flex-direction: column; }
  .admin-password-form { grid-template-columns: 1fr; }
}

/* ── Status badges ────────────────────────────────────── */
.badge {
  display: inline-block; padding: 4px 12px;
  font-family: var(--font-mono); font-size: 0.68rem;
  font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.04em; border: 2px solid var(--c-black);
}

.badge--pending  { background: #fff3e5; color: var(--c-orange); border-color: var(--c-orange); }
.badge--approved { background: #ebfaeb; color: var(--c-lime);   border-color: var(--c-lime); }
.badge--rejected { background: #fbe5e5; color: var(--c-pink);   border-color: var(--c-pink); }
.badge--admin    { background: var(--c-purple-bg); color: var(--c-purple); border-color: var(--c-purple); }
.badge--user     { background: var(--c-sky-bg); color: var(--c-sky); border-color: var(--c-sky); }

/* ── Empty state ──────────────────────────────────────── */
.empty-state {
  text-align: center; padding: 48px 24px;
  border: 2px dashed #ccc; background: #fafaf7;
}

.empty-state__icon { font-size: 2.5rem; margin-bottom: 12px; }
.empty-state__title {
  font-family: var(--font-heading); font-size: 1.1rem; font-weight: 800; margin-bottom: 8px;
}
.empty-state__desc {
  font-size: 0.9rem; color: #666; max-width: 40ch; margin: 0 auto 20px;
}

.legal-content { max-width: 880px; }
.legal-content section { margin-bottom: 36px; }
.legal-content h2 { margin-bottom: 12px; font-family: var(--font-heading); font-size: 1.35rem; }
.legal-content p { margin-bottom: 12px; color: #444; font-size: 0.92rem; line-height: 1.8; }
.footer__text { color: #777; font-size: 0.8rem; }

/* ── Toast notification ───────────────────────────────── */
.toast {
  position: fixed; top: 88px; right: 24px;
  padding: 16px 24px; border: var(--border);
  box-shadow: var(--shadow-md); background: var(--c-white);
  font-family: var(--font-mono); font-size: 0.8rem;
  font-weight: 700; z-index: 2000;
  transform: translateX(120%); transition: transform 0.3s var(--ease-out);
  max-width: 360px;
}

.toast.show { transform: translateX(0); }

.toast--success { border-left: 6px solid var(--c-lime); }
.toast--error   { border-left: 6px solid var(--c-pink); }
.toast--info    { border-left: 6px solid var(--c-sky); }

/* ── Stats row ────────────────────────────────────────── */
.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px; margin-bottom: 32px;
}

.stat-box {
  border: var(--border); background: var(--c-white);
  box-shadow: var(--shadow-sm); padding: 24px 20px;
}

.stat-box__num {
  font-family: var(--font-heading); font-size: 2rem; font-weight: 800; line-height: 1;
}

.stat-box__label {
  font-family: var(--font-mono); font-size: 0.7rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.04em; color: #555; margin-top: 6px;
}

/* ── File upload zone ─────────────────────────────────── */
.upload-zone {
  border: 2px dashed var(--c-black); padding: 32px 24px;
  text-align: center; background: #fafaf7; cursor: pointer;
  transition: background 0.15s;
}

.upload-zone:hover { background: var(--c-yellow-bg); }

.upload-zone__icon { font-size: 2rem; margin-bottom: 8px; }
.upload-zone__text {
  font-family: var(--font-mono); font-size: 0.8rem; font-weight: 700; color: #555;
}

.upload-zone__hint {
  font-size: 0.78rem; color: #999; margin-top: 4px;
}

.upload-zone.dragover { background: var(--c-lime-bg); border-color: var(--c-lime); }

/* ── Prompts Page ─────────────────────────────────────── */
.prompts-sidebar__btn {
  border-radius: 0; transition: all 0.15s var(--ease-out);
}
.prompts-sidebar__btn:hover {
  background: var(--c-yellow-bg) !important;
  border-color: var(--c-black) !important;
}

.prompts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.prompts-layout { width: 100%; min-width: 0; }

.explore-card__layout {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 12px;
  min-width: 0;
}

.explore-card__content { flex: 1 1 320px; min-width: 0; }
.explore-card__delivery { display: flex; align-items: center; gap: 8px; max-width: 100%; min-width: 0; }
.explore-card__file {
  min-width: 0;
  overflow: hidden;
  padding: 6px 12px;
  border: 2px solid var(--c-black);
  background: var(--c-page-bg);
  color: #555;
  font: 0.7rem var(--font-mono);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.prompt-card {
  transition: box-shadow 0.2s var(--ease-out), transform 0.2s var(--ease-out), grid-column 0.3s var(--ease-out);
  align-self: start;
}
.prompt-card:not(.is-expanded):hover {
  transform: translate(-2px, -2px);
}

/* ── Expanded state ── */
.prompt-card.is-expanded {
  grid-column: 1 / -1;
  cursor: default;
  box-shadow: 6px 6px 0 var(--c-black);
}

.prompt-card.is-expanded .prompt-card__head {
  border-bottom: 3px solid var(--c-black);
}

.prompt-card.is-expanded .prompt-card__body {
  display: flex;
  flex-direction: column;
}

.prompt-card.is-expanded .prompt-card__body-inner {
  display: grid;
  grid-template-columns: 1fr 240px;
  gap: 0;
  min-height: 0;
}

/* Left: prompt text container */
.prompt-card__text-wrap {
  padding: 24px;
  background: var(--c-page-bg);
  border-right: 2px dashed var(--c-black);
}
.prompt-card__text-wrap pre {
  max-height: 520px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--c-black) var(--c-page-bg);
}

/* Right: metadata sidebar */
.prompt-card__meta-sidebar {
  padding: 24px 20px;
  background: var(--c-white);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.prompt-card__meta-item {
  padding: 14px;
  border: 2px solid var(--c-black);
  background: var(--c-page-bg);
}
.prompt-card__meta-item h4 {
  font-family: var(--font-heading);
  font-size: 0.78rem; font-weight: 800;
  margin: 0 0 6px;
}
.prompt-card__meta-item p {
  font-size: 0.72rem; color: #555;
  margin: 0; line-height: 1.55;
}

.prompt-card__actions-bar {
  display: flex; gap: 10px;
  padding: 16px 24px;
  border-top: 2px dashed var(--c-black);
  background: var(--c-white);
  flex-wrap: wrap;
  align-items: center;
}

/* Collapse hint inside head */
.prompt-card__collapse-hint {
  display: none;
  font-family: var(--font-mono);
  font-size: 0.7rem; font-weight: 700;
  color: var(--c-pink); margin-left: auto;
  align-items: center; gap: 4px;
}
.prompt-card.is-expanded .prompt-card__collapse-hint {
  display: flex;
}

.prompt-card__head .btn--primary {
  font-family: var(--font-mono);
}

.prompt-upload-content {
  min-height: 360px;
  font-family: var(--font-mono);
  font-size: 0.84rem;
  line-height: 1.65;
}

.prompt-upload-tip {
  padding: 22px;
  border: var(--border);
  background: var(--c-white);
  box-shadow: var(--shadow-sm);
}

.prompt-upload-tip h2 {
  margin-bottom: 10px;
  font-family: var(--font-heading);
  font-size: 0.95rem;
}

.prompt-upload-tip p,
.prompt-upload-tip ol {
  color: #444;
  font-size: 0.8rem;
  line-height: 1.7;
}

.prompt-upload-tip ol { padding-left: 20px; }

.community-prompt-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
  flex-wrap: wrap;
}

.community-prompt-author {
  color: #777;
  font: 700 0.64rem var(--font-mono);
}

@media (max-width: 1024px) {
  .prompts-grid {
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  }
  .prompt-card.is-expanded .prompt-card__body-inner {
    grid-template-columns: 1fr;
  }
  .prompt-card__text-wrap {
    border-right: none;
    border-bottom: 2px dashed var(--c-black);
  }
}

@media (max-width: 860px) {
  .prompts-layout { flex-direction: column; }
  /* Sidebar collapses to top tabs on mobile */
  .prompts-sidebar {
    position: static !important;
    width: 100% !important; height: auto !important;
    border-right: none !important; border-bottom: var(--border) !important;
    padding: 16px 0 !important;
    overflow-y: visible !important;
  }
  .prompts-sidebar__nav {
    flex-direction: row !important; flex-wrap: wrap;
    gap: 8px !important; padding: 0 24px;
  }
  .prompts-sidebar__nav li { flex: 1; min-width: 120px; }
  .prompts-sidebar__btn { text-align: center !important; font-size: 0.78rem !important; padding: 10px 12px !important; }

  .prompts-grid {
    grid-template-columns: 1fr;
  }

  .prompt-card__meta-sidebar {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

  .prompts-layout > div { width: 100%; padding: 24px 20px 60px !important; }
}

@media (max-width: 520px) {
  .prompts-sidebar__nav { padding: 0 16px; }
  .prompts-sidebar__nav li { min-width: calc(50% - 4px); }
  .prompt-card__meta-sidebar { grid-template-columns: 1fr; }
  .prompt-card__head { min-width: 0; padding: 16px 14px !important; }
  .prompt-card__head > div:last-child { min-width: 0; }
  .prompt-card__actions-bar { padding: 14px; }
  .prompt-card__text-wrap { min-width: 0; padding: 14px; }
  .explore-card__delivery { width: 100%; flex-wrap: wrap; }
  .explore-card__file { flex: 1 1 180px; }
  .explore-card__delivery .btn { flex: 0 0 auto; }
}