:root {
  --bg: #fbfbfa;
  --ink: #151515;
  --muted: #696969;
  --quiet: #8a8a8a;
  --panel: #ffffff;
  --line: #e7e4df;
  --line-strong: #d6d1c9;
  --accent: #151515;
  --accent-soft: #f1efea;
  --focus: #2457c5;
  --radius: 0.9rem;
  color-scheme: light;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

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

html {
  scroll-behavior: smooth;
  scrollbar-gutter: stable;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  min-height: 100vh;
  text-rendering: optimizeLegibility;
  position: relative;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: url("public/iconjt-bg.png");
  background-repeat: no-repeat;
  background-position: center 65%;
  background-size: min(70vmin, 620px);
  opacity: 0.12;
  pointer-events: none;
  z-index: 5;
}

body,
button,
input {
  font: 1rem/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
input {
  color: inherit;
}

a {
  color: var(--ink);
  text-underline-offset: 0.25em;
}

code {
  background: var(--accent-soft);
  border: 1px solid var(--line);
  border-radius: 0.4rem;
  font-family: "Courier New", monospace;
  font-size: 0.9em;
  padding: 0.08rem 0.3rem;
}

.skip-link {
  background: var(--ink);
  color: var(--panel);
  left: 1rem;
  padding: 0.65rem 0.85rem;
  position: fixed;
  top: 1rem;
  transform: translateY(-150%);
  transition: transform 180ms ease;
  z-index: 10;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header,
main,
.site-footer {
  margin: 0 auto;
  max-width: 820px;
  padding-inline: clamp(1.1rem, 4vw, 2rem);
  position: relative;
  z-index: 1;
}

.site-header {
  padding-top: 0.75rem;
}

.nav {
  align-items: center;
  display: flex;
  justify-content: space-between;
  padding-block: 1rem;
}

.brand,
.nav-link {
  align-items: center;
  display: inline-flex;
  font-size: 0.95rem;
  font-weight: 650;
  gap: 0.6rem;
  text-decoration: none;
}

.brand-mark {
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--ink);
  display: inline-flex;
  font-size: 0.9rem;
  height: 1.8rem;
  justify-content: center;
  width: 1.8rem;
}

.hero {
  display: grid;
  gap: 0.9rem;
  padding-block: clamp(3.5rem, 13vw, 6.5rem) 2rem;
}

.eyebrow,
.category-label,
.toolbar p,
.site-footer {
  color: var(--muted);
  font-family: inherit;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.eyebrow,
.category-label,
.toolbar p {
  font-size: 0.76rem;
  margin: 0;
}

h1 {
  font-size: clamp(2rem, 5.5vw, 3.25rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1;
  margin: 0;
  max-width: 780px;
  font-feature-settings: "kern" 1, "liga" 1, "calt" 1;
  font-kerning: normal;
  text-rendering: optimizeLegibility;
}

.title-link {
  color: #6441a5;
  text-decoration: none;
  transition: color 160ms ease;
}

.title-link:hover,
.title-link:focus-visible {
  color: #6441a5;
}

.hero-copy {
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.22rem);
  margin: 0;
  max-width: 520px;
}

.search-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  display: grid;
  gap: 0.75rem;
  margin-top: 1.15rem;
  padding: 0.95rem;
}

.search-panel label {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 700;
}

.search-row {
  display: grid;
  gap: 0.7rem;
  grid-template-columns: 1fr auto;
}

input[type="search"] {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 0.65rem;
  font-size: 1rem;
  min-width: 0;
  padding: 0.82rem 0.9rem;
  transition: border-color 160ms ease, box-shadow 160ms ease;
}

input[type="search"]::placeholder {
  color: var(--quiet);
}

button {
  background: var(--accent);
  border: 1px solid transparent;
  border-radius: 0.65rem;
  color: white;
  cursor: pointer;
  font-weight: 700;
  padding: 0.82rem 0.95rem;
  transition: background 160ms ease, border-color 160ms ease, color 160ms ease;
}

button:hover {
  background: #374151;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 4px;
}

.toolbar {
  align-items: center;
  border-block: 1px solid var(--line);
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  padding-block: 0.85rem;
}

.toolbar-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.ghost-button {
  background: transparent;
  border-color: var(--line);
  color: var(--ink);
  font-size: 0.92rem;
}

.ghost-button:hover {
  background: var(--accent-soft);
  color: var(--ink);
}

.faq-shell {
  display: grid;
  gap: 1.15rem;
  padding-block: 1.75rem 4.25rem;
}

.category {
  display: grid;
  gap: 0.55rem;
}

.faq-item {
  background: var(--panel);
  border-top: 1px solid var(--line);
  transition: background 180ms ease, border-color 180ms ease;
}

.faq-item:last-child {
  border-bottom: 1px solid var(--line);
}

.faq-item:hover {
  background: #f7f7f5;
  border-color: var(--line-strong);
}

.faq-item[open] {
  background: var(--panel);
}

summary {
  cursor: pointer;
  font-size: clamp(1.1rem, 2.5vw, 1.38rem);
  font-weight: 650;
  list-style: none;
  padding: 1.1rem 3.25rem 1.1rem 1.4rem;
  position: relative;
}

summary::-webkit-details-marker {
  display: none;
}

summary::after {
  color: var(--muted);
  content: "+";
  font-size: 1.45rem;
  font-weight: 400;
  position: absolute;
  right: 1.25rem;
  top: 50%;
  transform: translateY(-50%);
  transition: transform 180ms ease;
}

.faq-item[open] summary::after {
  transform: translateY(-50%) rotate(45deg);
}

.answer {
  animation: reveal 180ms ease;
  color: var(--ink);
  font-size: clamp(1.12rem, 2vw, 1.22rem);
  font-weight: 450;
  max-width: 560px;
  padding: 0 3.25rem 1.25rem 1.4rem;
}

.answer p {
  margin: 0;
}

.empty-state {
  background: var(--panel);
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  color: var(--muted);
  margin: 0;
  padding: 1.5rem;
  text-align: center;
}

.site-footer {
  align-items: center;
  border-top: 1px solid var(--line);
  display: flex;
  font-size: 1rem;
  justify-content: space-between;
  padding-block: 1.35rem 2.5rem;
}

.site-footer p {
  margin: 0;
}

.concerned {
  border-top: 1px solid var(--line);
  display: grid;
  gap: 1rem;
  padding-block: 2rem 3rem;
}

.concerned h2 {
  font-size: clamp(1.9rem, 4.5vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin: 0;
}

.concerned-counter {
  align-items: center;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  display: grid;
  gap: 0.85rem;
  grid-template-columns: 1fr auto;
  max-width: 32rem;
  padding: 0.85rem 1rem 0.4rem;
  position: relative;
  z-index: 6;
}

.concerned-counter-label,
.concerned-counter-status {
  color: var(--muted);
  margin: 0;
}

.concerned-counter-label {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.concerned-counter-count {
  font-size: clamp(1.7rem, 5vw, 2.35rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1;
  margin: 0.2rem 0 0;
}

.concerned-counter-status {
  font-size: 0.92rem;
  grid-column: 1 / -1;
  min-height: 1.4em;
}

#concerned-button {
  font-size: 0.92rem;
  min-width: 8.75rem;
  padding: 0.6rem 0.85rem;
}

#concerned-button[disabled] {
  cursor: not-allowed;
  opacity: 0.7;
}

.concerned-subtitle {
  color: var(--ink);
  font-size: clamp(1.4rem, 3vw, 1.6rem);
  font-weight: 650;
  letter-spacing: -0.015em;
  margin: 0.25rem 0 -0.25rem;
}

.concerned-counter-admin {
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 700;
  grid-column: 1 / -1;
  letter-spacing: 0.04em;
  margin: 0;
  text-transform: uppercase;
}

.concerned-hall {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  max-width: 32rem;
  padding: 0.85rem 1rem;
  position: relative;
  z-index: 6;
}

.concerned-grid {
  display: grid;
  gap: 1.2rem;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
}

.concerned-card {
  display: grid;
  gap: 0.5rem;
  margin: 0;
}

.concerned-card img {
  display: block;
  height: auto;
  width: 100%;
}

.concerned-card figcaption {
  color: var(--muted);
  font-size: 0.88rem;
}

@keyframes reveal {
  from {
    opacity: 0;
    transform: translateY(-0.25rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 720px) {
  .search-row,
  .category {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-block: 2.8rem 1.6rem;
  }

  .toolbar,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .toolbar-actions {
    width: 100%;
  }

  .toolbar-actions button {
    flex: 1;
  }

  .concerned-counter {
    align-items: stretch;
    grid-template-columns: 1fr;
  }

  .faq-item {
    grid-column: auto;
  }

  .category-label {
    padding-top: 0;
  }

  summary {
    padding-right: 2.6rem;
    padding-left: 1.1rem;
  }

  summary::after {
    right: 1rem;
  }

  .answer {
    padding-right: 2.6rem;
    padding-left: 1.1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    scroll-behavior: auto !important;
    transition-duration: 1ms !important;
  }
}