/* ============================================================
   The back of the card: a plain academic homepage.
   Few elements, in KonoSuba's colours — Aqua's blue for links, Megumin's
   crimson for marks, Darkness's gold for rules, Kazuma's green — on the
   card's parchment by day and Axel's night-sky navy by night.
   ============================================================ */

.about {
  --party-0: #2f86d4;   /* Aqua */
  --party-1: #b81d36;   /* Megumin */
  --party-2: #b48a25;   /* Darkness */
  --party-3: #2f7a4f;   /* Kazuma */
  --bg: #1a2133;
  --surface: #212a40;
  --text: #ece3cc;
  --muted: #a89f8b;
  --rule: #34405c;
  --link: #7cc4f2;
  --mark: #e5596e;
  --gold: #e2b23d;
  position: fixed;
  inset: 0;
  z-index: 20;
  overflow-y: auto;
  color: var(--text);
  background: var(--bg);
  font-family: 'Noto Serif SC', 'Songti SC', serif;
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
:root[data-theme='day'] .about {
  --bg: #f4eedd;
  --surface: #fbf7ec;
  --text: #2a1d14;
  --muted: #6e5b44;
  --rule: #e1d4b4;
  --link: #1f6fb8;
  --mark: #b81d36;
  --gold: #a87e1c;
}
.about[hidden] { display: none; }
.about, .about * { cursor: auto; }
.about a, .about button { cursor: pointer; }
:root[data-theme='night'] .about { --party-0: #7cc4f2; --party-1: #e5596e; --party-2: #e2b23d; --party-3: #6cbf8a; }

/* ---------- the top bar: the name, the sections, and room for the corner buttons ---------- */
.about__nav { position: sticky; top: 0; z-index: 5; background: var(--bg); }
.about__bar {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 74px;
  /* the name lines up with the page below; the right end leaves the corner buttons their space */
  padding: 0 316px 0 max(32px, calc((100% - 1080px) / 2 + 32px));
}
.about__brand {
  flex: none;
  color: var(--text) !important;
  font-family: 'Cormorant Garamond', 'Noto Serif SC', serif;
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  text-decoration: none !important;
}
.about__menu { display: flex; gap: 4px; margin: 0 0 0 auto; padding: 0; list-style: none; }
.about .about__menu a {
  position: relative;
  display: block;
  padding: 6px 12px;
  color: var(--muted);
  font-size: 15px;
  white-space: nowrap;
  text-decoration: none !important;
  transition: color 0.15s ease;
}
.about .about__menu a:hover { color: var(--text); }
/* the section being read is underlined in one of the party colours */
.about__menu a::after {
  content: '';
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 0;
  height: 2px;
  border-radius: 1px;
  background: var(--c);
  transform: scaleX(0);
  transition: transform 0.2s ease;
}
.about .about__menu a.is-active { color: var(--text); font-weight: 700; }
.about__menu a.is-active::after { transform: none; }

/* the four party colours as a thin band under the top bar */
.about__band {
  height: 3px;
  background: linear-gradient(90deg, var(--party-0) 0 25%, var(--party-1) 25% 50%, var(--party-2) 50% 75%, var(--party-3) 75%);
}

/* the top-right corner: language and day/night (on the back), then the flip */
.corner { position: fixed; top: 14px; right: 14px; z-index: 30; display: flex; align-items: center; gap: 10px; }
.corner .medal-btn { position: static; cursor: pointer; font-family: 'Noto Serif SC', serif; font-size: 15px; font-weight: 700; }
.corner .medal-btn[hidden] { display: none; }

/* the flip: a dark leather tab with gold lettering, so it reads on the pale card */
.flip-switch {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 46px;
  padding: 0 18px 0 14px;
  color: #ecd28c;
  font: 700 16px/1 'Noto Serif SC', 'Songti SC', serif;
  letter-spacing: 0.08em;
  background: #3a2716;
  border: 3px solid #c9a24c;
  border-radius: 23px;
  box-shadow: inset 0 0 0 2px #2a1d14, 2px 3px 0 rgba(10, 8, 6, 0.45);
  cursor: pointer;
  transition: transform 0.15s ease, background-color 0.15s ease;
}
.flip-switch:hover, .flip-switch:focus-visible { background: #4f3520; transform: translateY(-2px); outline: none; }
.flip-switch:focus-visible { box-shadow: inset 0 0 0 2px #2a1d14, 0 0 0 3px #f2ecd8; }
.flip-switch.is-hinting { animation: flip-hint 4s ease-in-out 1.2s infinite; }
@keyframes flip-hint {
  0%, 82%, 100% { transform: none; }
  86% { transform: perspective(300px) rotateY(-28deg); }
  90% { transform: perspective(300px) rotateY(22deg); }
  94% { transform: perspective(300px) rotateY(-10deg); }
}

.about a { color: var(--link); text-decoration: none; }
.about a:hover { text-decoration: underline; text-underline-offset: 3px; }
.about .muted { color: var(--muted); }
.about .todo { color: var(--muted); background: repeating-linear-gradient(-45deg, transparent 0 6px, rgba(226, 178, 61, 0.14) 6px 12px); border-bottom: 1px dashed var(--gold); }
.about p { margin: 0; }

.about__page {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 64px;
  max-width: 1080px;
  margin: 0 auto;
  padding: 48px 32px 72px;
}

/* ---------- left column: who and how to reach ---------- */
.about__side { position: sticky; top: 117px; align-self: start; }
.about__avatar {
  display: block;
  width: 160px;
  height: 160px;
  object-fit: cover;
  border-radius: 50%;
  border: 3px solid var(--gold);
  box-shadow: 0 0 0 6px var(--bg), 0 0 0 7px var(--rule);
}
.about__side h1 { margin: 22px 0 0; font-family: 'Cormorant Garamond', 'Noto Serif SC', serif; font-size: 34px; font-weight: 700; line-height: 1.15; }
.about__alias { color: var(--muted); font-family: 'Cormorant Garamond', serif; font-size: 18px; font-style: italic; }
.about__role { margin-top: 10px !important; font-weight: 700; }
.about__aff { color: var(--muted); font-size: 15px; line-height: 1.6; }
.about__links { margin: 22px 0 0; padding: 18px 0 0; list-style: none; border-top: 1px solid var(--rule); font-size: 15px; }
.about__links li + li { margin-top: 8px; }
.about__links a, .about__links .is-empty { display: grid; grid-template-columns: 18px auto minmax(0, 1fr); align-items: center; column-gap: 10px; }
.about__links svg { color: var(--muted); }
.about__links a:hover svg { color: var(--link); }
.about__link-text { color: var(--muted); font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.about .is-empty { color: var(--muted); opacity: 0.7; cursor: default; }

/* ---------- right column: sections ---------- */
.about__sec + .about__sec { margin-top: 44px; }
.about__sec h2 {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  padding-bottom: 8px;
  font-family: 'Cormorant Garamond', 'Noto Serif SC', serif;
  font-size: 26px;
  font-weight: 700;
  line-height: 1.2;
  border-bottom: 1px solid var(--rule);
}
.about__sec h2 span { color: var(--mark); font-size: 13px; }
.about__sec p + p { margin-top: 12px; }

.chips { display: flex; flex-wrap: wrap; gap: 10px; margin: 0; padding: 0; list-style: none; }
.chips li { padding: 2px 14px; font-size: 15px; border: 1.5px solid var(--c); border-radius: 999px; color: var(--c); }

.about__sec h3 { margin: 0 0 12px; color: var(--muted); font-size: 15px; font-weight: 700; letter-spacing: 0.06em; }
.about__facts { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 28px; margin-top: 26px; }

.chips { display: flex; flex-wrap: wrap; gap: 10px; margin: 0; padding: 0; list-style: none; }
.chips li { padding: 2px 14px; font-size: 15px; border: 1.5px solid var(--c); border-radius: 999px; color: var(--c); }

.rows { margin: 0; padding: 0; list-style: none; }
.rows > li { display: grid; grid-template-columns: 120px minmax(0, 1fr); column-gap: 20px; }
.rows > li + li { margin-top: 18px; }
.about__facts .rows > li { grid-template-columns: minmax(0, 1fr); }
.when { color: var(--muted); font-variant-numeric: tabular-nums; font-size: 15px; }
.rows strong { font-weight: 700; line-height: 1.55; }
.rows .muted { font-size: 15px; }
.about__sec .rows p + p { margin-top: 2px; }
.rows + .links { margin-top: 16px !important; }
.rows .authors { font-size: 15px; }
.rows .authors strong { color: var(--text); text-decoration: underline; text-decoration-color: var(--gold); text-underline-offset: 3px; }

/* the issuer of an award, as a small gold tag */
.org { display: inline-block; margin-left: 6px; padding: 0 7px; color: var(--gold); font-size: 12px; font-weight: 700; line-height: 1.6; vertical-align: 2px; border: 1px solid var(--gold); border-radius: 4px; }
.points { margin: 6px 0 0; padding-left: 1.2em; font-size: 15px; }
.points li::marker { color: var(--mark); }
.post { font-weight: 700; }
.excerpt { margin-top: 2px !important; color: var(--muted); font-size: 14px; line-height: 1.65; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

.contact { margin: 14px 0 0; padding: 0; list-style: none; }
.contact li + li { margin-top: 8px; }
.contact a, .contact li > span { display: inline-flex; align-items: center; gap: 10px; }
.contact svg { flex: none; color: var(--mark); }

.links { display: flex; flex-wrap: wrap; gap: 6px 14px; margin-top: 4px !important; font-size: 14px; }
.links a::before, .links .is-empty::before { content: '['; color: var(--muted); }
.links a::after, .links .is-empty::after { content: ']'; color: var(--muted); }

.about__foot { margin-top: 56px !important; padding-top: 16px; color: var(--muted); font-size: 14px; border-top: 1px solid var(--rule); }

/* ---------- narrower screens: the sections move to a second row of the top bar ---------- */
@media (max-width: 1120px) {
  .about__bar { flex-wrap: wrap; row-gap: 0; height: auto; padding: 0 32px; }
  .about__brand { display: flex; align-items: center; height: 74px; }
  .about__menu { flex-basis: 100%; margin: 0 -12px; overflow-x: auto; scrollbar-width: none; padding-bottom: 4px; }
  .about__menu::-webkit-scrollbar { display: none; }
  .about__side { top: 155px; }
}

/* ---------- narrow screens: one column ---------- */
@media (max-width: 820px) {
  .about__page { grid-template-columns: minmax(0, 1fr); gap: 40px; padding: 36px 20px 56px; }
  .about__bar { padding: 0 20px; }
  .about__brand { font-size: 22px; }
  .about__side { position: static; text-align: center; }
  .about__avatar { margin: 0 auto; width: 128px; height: 128px; }
  .about__links { display: inline-block; text-align: left; }
  .rows > li { grid-template-columns: minmax(0, 1fr); row-gap: 4px; }
  .about__facts { grid-template-columns: minmax(0, 1fr); }
}