/*
 * 2-12 Battalion, prototype front end.
 *
 * Gold on deep navy, taken from the unit's own crest, with drifting light behind
 * frosted glass panels. Everything that floats (the bar, the cards, the menus)
 * is the same glass recipe: a translucent fill, a hairline edge, a highlight
 * along the top edge for the gloss, and a soft shadow underneath for depth.
 *
 * Motion is only ever a reply to something the reader did, apart from the light
 * behind the glass, and all of it stops under prefers-reduced-motion.
 */

:root {
  --night:  #05081A;
  --deep:   #080D26;

  --ink:    #EDF1FB;
  --muted:  #9DA9CC;
  --gold:   #EFC04A;
  --gold-2: #C9902A;

  /* the glass recipe */
  --glass:      rgba(255, 255, 255, 0.055);
  --glass-lift: rgba(255, 255, 255, 0.095);
  --line:       rgba(255, 255, 255, 0.13);
  --line-soft:  rgba(255, 255, 255, 0.07);
  --dots:       rgba(255, 255, 255, 0.22);
  --gloss:      rgba(255, 255, 255, 0.16);
  --drop:       0 18px 40px rgba(3, 6, 20, 0.45);

  --gutter: clamp(1rem, 4vw, 2.5rem);
  --radius: 20px;

  --sans:    "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --display: "Archivo", "IBM Plex Sans", system-ui, sans-serif;

  /* a settle rather than a slide */
  --spring: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }

/* The screens set their own display, which would otherwise beat the browser's
   [hidden] rule and leave all of them stacked on top of each other. */
[hidden] { display: none !important; }

html, body { height: 100%; }

body {
  margin: 0;
  color: var(--ink);
  font: 400 0.9375rem/1.6 var(--sans);
  background:
    radial-gradient(120% 90% at 50% -10%, #101A3E 0%, transparent 55%),
    linear-gradient(165deg, var(--night) 0%, var(--deep) 55%, #070B22 100%);
  background-repeat: no-repeat;
  -webkit-font-smoothing: antialiased;
}

:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

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

/* ------------------------------------------------------------ light behind it */

.aurora {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.bloom {
  position: absolute;
  width: 78vw;
  aspect-ratio: 1;
  opacity: 0.5;
  will-change: transform;
}

.bloom-azure {
  background: radial-gradient(circle at 50% 50%, rgba(47, 95, 255, 0.5), rgba(47, 95, 255, 0) 62%);
  top: -28vw; left: -22vw;
  animation: drift-a 52s ease-in-out infinite alternate;
}

.bloom-violet {
  background: radial-gradient(circle at 50% 50%, rgba(122, 63, 224, 0.48), rgba(122, 63, 224, 0) 62%);
  top: -2vw; right: -30vw;
  animation: drift-b 64s ease-in-out infinite alternate;
}

.bloom-teal {
  background: radial-gradient(circle at 50% 50%, rgba(14, 158, 154, 0.4), rgba(14, 158, 154, 0) 62%);
  bottom: -36vw; left: 6vw;
  animation: drift-c 58s ease-in-out infinite alternate;
}

.bloom-gold {
  background: radial-gradient(circle at 50% 50%, rgba(201, 138, 24, 0.34), rgba(201, 138, 24, 0) 60%);
  bottom: -30vw; right: -6vw; width: 52vw;
  animation: drift-d 46s ease-in-out infinite alternate;
}

/* keeps the colour in the middle and lets the edges fall back to night */
.aurora::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(115% 85% at 50% 42%, transparent 0%, rgba(4, 6, 20, 0.72) 100%);
}

@keyframes drift-a { to { transform: translate3d(14vw, 10vh, 0) scale(1.18); } }
@keyframes drift-b { to { transform: translate3d(-12vw, 16vh, 0) scale(0.86); } }
@keyframes drift-c { to { transform: translate3d(18vw, -12vh, 0) scale(1.12); } }
@keyframes drift-d { to { transform: translate3d(-16vw, -8vh, 0) scale(1.25); } }

/* ------------------------------------------------------------------- the glass */

.glass {
  position: relative;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03)), rgba(9, 14, 36, 0.55);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--drop);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

/* the gloss: a highlight riding the top edge */
.glass::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding-top: 1px;
  background: linear-gradient(to bottom, var(--gloss), transparent 42%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  pointer-events: none;
}

/* --------------------------------------------------------------------- booting */

.boot {
  display: grid;
  place-items: center;
  min-height: 100dvh;
  color: var(--muted);
}

/* ----------------------------------------------------------------------- login */

.login {
  display: grid;
  place-items: center;
  min-height: 100dvh;
  padding: 2rem var(--gutter);
}

.login-card {
  width: min(33rem, 100%);
  padding: clamp(2rem, 5vw, 3rem);
  text-align: center;
  animation: rise 600ms var(--spring) both;
}

@keyframes rise {
  from { opacity: 0; transform: translateY(14px) scale(0.985); }
  to   { opacity: 1; transform: none; }
}

.crest {
  display: block;
  border-radius: 16px;
  margin: 0 auto 1.5rem;
  filter: drop-shadow(0 8px 18px rgba(0, 0, 0, 0.5));
}

.login-unit {
  margin: 0 0 0.6rem;
  font: 700 0.8125rem/1 var(--display);
  letter-spacing: 0.22em;
  color: var(--gold);
}

.login-title {
  margin: 0 0 1.1rem;
  font: 700 clamp(1.6rem, 4vw, 2.1rem)/1.14 var(--display);
  letter-spacing: -0.015em;
}

.login-copy {
  margin: 0 auto 2rem;
  max-width: 32ch;
  color: var(--muted);
}

.button {
  display: inline-block;
  padding: 0.85rem 1.9rem;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 999px;
  background:
    linear-gradient(to bottom, rgba(255, 255, 255, 0.28), rgba(255, 255, 255, 0) 55%),
    linear-gradient(to bottom, var(--gold), var(--gold-2));
  color: #241A02;
  font: 600 0.9375rem/1 var(--sans);
  text-decoration: none;
  cursor: pointer;
  box-shadow: 0 10px 24px rgba(201, 144, 42, 0.32);
  transition: transform 180ms var(--spring), box-shadow 180ms ease, filter 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
  filter: brightness(1.06);
  box-shadow: 0 14px 30px rgba(201, 144, 42, 0.42);
}

.button:active { transform: translateY(0); }

.login-note {
  margin: 1.6rem auto 0;
  max-width: 34ch;
  padding: 0.85rem 1rem;
  border: 1px solid var(--line-soft);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
  font-size: 0.875rem;
  text-align: left;
}

/* ---------------------------------------------------------------------- topbar */

.topbar {
  position: sticky;
  top: 0.9rem;
  z-index: 30;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 1rem;
  margin: 0.9rem var(--gutter) 0;
  padding: 0.6rem 0.75rem;
}

.who-wrap { position: relative; justify-self: start; }

/* the profile button: it should look pressable before it is pressed */
.who {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.35rem 0.85rem 0.35rem 0.35rem;
  border: 1px solid transparent;
  border-radius: 999px;
  background: transparent;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: background 200ms ease, border-color 200ms ease, transform 200ms var(--spring);
}

.who:hover {
  background: var(--glass-lift);
  border-color: var(--line);
  transform: translateY(-1px);
}

.who:active { transform: translateY(0); }
.who[aria-expanded="true"] { background: var(--glass-lift); border-color: var(--line); }

.avatar {
  border-radius: 50%;
  flex: none;
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.22), 0 0 0 3px rgba(239, 192, 74, 0.28);
  transition: box-shadow 220ms ease;
}

.who:hover .avatar { box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.3), 0 0 0 4px rgba(239, 192, 74, 0.45); }

.who-text { display: grid; min-width: 0; }

.who-name {
  font: 600 1.2rem/1.2 var(--display);
  letter-spacing: -0.01em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.who-rank {
  font-size: 0.8125rem;
  color: var(--muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chevron {
  width: 8px; height: 8px;
  border-right: 1.5px solid var(--muted);
  border-bottom: 1.5px solid var(--muted);
  transform: rotate(45deg) translateY(-2px);
  transition: transform 260ms var(--spring);
}

.who[aria-expanded="true"] .chevron { transform: rotate(-135deg) translateY(-2px); }

.unit {
  margin: 0;
  justify-self: center;
  font: 700 0.8125rem/1 var(--display);
  letter-spacing: 0.22em;
  color: var(--gold);
}

.menu-wrap { position: relative; justify-self: end; }

.menu-button {
  display: grid;
  place-items: center;
  width: 42px; height: 42px;
  border: 1px solid var(--line-soft);
  border-radius: 14px;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  transition: background 200ms ease, border-color 200ms ease, transform 200ms var(--spring);
}

.menu-button:hover {
  background: var(--glass-lift);
  border-color: var(--line);
  transform: translateY(-1px);
}

.menu-glyph,
.menu-glyph::before,
.menu-glyph::after {
  display: block;
  width: 16px;
  height: 1.5px;
  border-radius: 2px;
  background: currentColor;
  transition: transform 260ms var(--spring);
}

.menu-glyph { position: relative; }
.menu-glyph::before,
.menu-glyph::after { content: ""; position: absolute; left: 0; }
.menu-glyph::before { top: -5px; }
.menu-glyph::after  { top: 5px; }

.menu-button[aria-expanded="true"] .menu-glyph::before { transform: translateY(5px); }
.menu-button[aria-expanded="true"] .menu-glyph::after  { transform: translateY(-5px); }

/* -------------------------------------------------------------------- popovers */

/* Kept in the layout rather than hidden outright, so opening and closing can be
   animated. Nothing inside is reachable while it is closed. */
.popover {
  position: absolute;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.02)), rgba(9, 13, 34, 0.985);
  top: calc(100% + 0.7rem);
  z-index: 40;
  padding: 1.1rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px) scale(0.97);
  transform-origin: top center;
  pointer-events: none;
  transition: opacity 200ms ease, transform 280ms var(--spring), visibility 0s linear 280ms;
}

.popover.is-open {
  opacity: 1;
  visibility: visible;
  transform: none;
  pointer-events: auto;
  transition: opacity 200ms ease, transform 280ms var(--spring), visibility 0s;
}

#profileCard { left: 0; width: min(21rem, calc(100vw - 2rem)); }
.menu        { right: 0; width: min(18rem, calc(100vw - 2rem)); }

.pc-head {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding-bottom: 0.9rem;
  border-bottom: 1px solid var(--line-soft);
}

.pc-avatar {
  border-radius: 50%;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.2), 0 0 0 3px rgba(239, 192, 74, 0.3);
}

.pc-name { margin: 0; font: 600 1.05rem/1.2 var(--display); }
.pc-handle { margin: 0.15rem 0 0; color: var(--muted); font-size: 0.8125rem; }

.pc-body { margin: 0.9rem 0 0; display: grid; gap: 0.55rem; }

.pc-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: baseline;
  gap: 0.6rem;
  font-size: 0.875rem;
}

.pc-row dt { color: var(--muted); }
.pc-row dd { margin: 0; font-weight: 500; text-align: right; }
.pc-row .lead { border-bottom: 1px dotted var(--dots); transform: translateY(-0.25rem); }

.pc-note {
  margin: 0.9rem 0 0;
  color: var(--muted);
  font-size: 0.8125rem;
}

.dot {
  display: inline-block;
  width: 8px; height: 8px;
  margin-right: 0.45rem;
  border-radius: 50%;
  background: currentColor;
}

.menu-empty {
  margin: 0 0 0.9rem;
  color: var(--muted);
  font-size: 0.8125rem;
}

.menu-item {
  width: 100%;
  padding: 0.6rem 0.8rem;
  border: 1px solid var(--line-soft);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--ink);
  font: 500 0.875rem/1 var(--sans);
  text-align: left;
  cursor: pointer;
  transition: background 180ms ease, border-color 180ms ease, transform 180ms var(--spring);
}

.menu-item:hover {
  background: var(--glass-lift);
  border-color: var(--line);
  transform: translateY(-1px);
}

/* ------------------------------------------------------------------------ tabs */

.tabbar {
  position: relative;
  display: flex;
  gap: 0.25rem;
  margin: 0.9rem var(--gutter) 0;
  padding: 0.35rem;
  border-radius: 999px;
  width: fit-content;
  max-width: calc(100% - 2 * var(--gutter));
  overflow: hidden;
}

/* the glass that slides from tab to tab */
.tab-pill {
  position: absolute;
  top: 0.35rem;
  left: 0;
  height: calc(100% - 0.7rem);
  border-radius: 999px;
  background: var(--glass-lift);
  border: 1px solid var(--line);
  box-shadow: inset 0 1px 0 var(--gloss);
  transform: translateX(var(--pill-x, 0));
  width: var(--pill-w, 0);
  transition: transform 420ms var(--spring), width 420ms var(--spring);
  pointer-events: none;
}

.tab {
  position: relative;
  z-index: 1;
  flex: none;
  padding: 0.6rem 1.15rem;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  font: 500 0.9375rem/1 var(--sans);
  cursor: pointer;
  overflow: hidden;
  transition: color 220ms ease;
}

/* the wet look: a highlight that follows the pointer across the tab */
.tab::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(
    9rem circle at var(--mx, 50%) var(--my, 50%),
    rgba(255, 255, 255, 0.18),
    rgba(255, 255, 255, 0.04) 45%,
    transparent 70%
  );
  opacity: 0;
  transition: opacity 260ms ease;
  pointer-events: none;
}

.tab:hover { color: var(--ink); }
.tab:hover::after { opacity: 1; }
.tab[aria-selected="true"] { color: var(--ink); }

/* -------------------------------------------------------------------- the sheet */

.sheet {
  max-width: 74rem;
  padding: 1.6rem var(--gutter) 4rem;
}

.panel:focus { outline: none; }

.panel.is-entering { animation: panel-in 420ms var(--spring) both; }

@keyframes panel-in {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: none; }
}

.blocks {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.1rem;
}

.block {
  padding: 1.35rem 1.5rem 1.5rem;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.075), rgba(255, 255, 255, 0.025)), rgba(9, 14, 36, 0.55);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--drop);
}

.block h2 {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 0.9rem;
  margin: 0 0 0.5rem;
  font: 600 1rem/1 var(--display);
}

.block h2::after {
  content: "";
  height: 1px;
  background: linear-gradient(to right, rgba(239, 192, 74, 0.5), transparent);
}

.ledger { margin: 0; }

.row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: end;
  column-gap: 0.8rem;
  padding: 0.5rem 0;
}

.row dt { margin: 0; color: var(--muted); }

.row .lead {
  border-bottom: 1px dotted var(--dots);
  margin-bottom: 0.45rem;
}

.row dd {
  margin: 0;
  font: 600 1.5rem/1 var(--display);
  font-variant-numeric: tabular-nums;
}

.row.is-text dd {
  font: 500 0.9375rem/1 var(--sans);
  color: var(--ink);
  margin-bottom: 0.4rem;
}

.source {
  margin: 1.5rem 0 0;
  color: var(--muted);
  font-size: 0.8125rem;
}

.notice {
  margin: 0;
  padding: 1.1rem 1.25rem;
  background: rgba(9, 14, 36, 0.5);
  border: 1px solid var(--line);
  border-left: 2px solid var(--gold);
  border-radius: 16px;
  color: var(--muted);
}

.notice strong { color: var(--ink); font-weight: 600; }

/* ---------------------------------------------------------------------- roster */

.table-wrap {
  padding: 1.35rem 1.5rem;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.075), rgba(255, 255, 255, 0.025)), rgba(9, 14, 36, 0.55);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--drop);
  overflow-x: auto;
}

.roster {
  width: 100%;
  border-collapse: collapse;
  white-space: nowrap;
}

.roster caption {
  margin-bottom: 1rem;
  color: var(--muted);
  text-align: left;
}

.roster th {
  padding: 0 1.5rem 0.6rem 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font: 600 0.8125rem/1 var(--display);
  text-align: left;
}

.roster td {
  padding: 0.8rem 1.5rem 0.8rem 0;
  border-bottom: 1px solid var(--line-soft);
}

.roster tr:last-child td { border-bottom: 0; }
.roster td:first-child { font-weight: 500; }

.tag { color: var(--gold); font-size: 0.8125rem; }

/* -------------------------------------------------------------------- narrower */

@media (min-width: 64rem) {
  .blocks { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 40rem) {
  .topbar { grid-template-columns: 1fr auto; padding: 0.5rem; }
  .unit { display: none; }
  .who-name { font-size: 1.05rem; }
  .row dd { font-size: 1.25rem; }
  #profileCard { width: min(20rem, calc(100vw - 2rem)); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .bloom { animation: none !important; }
}