/* ───────────────────────────────────────────────────────────
   Modal dialogs and the Settings popover.
   - About    (#about-overlay)
   - Screenshot (#shot-overlay)
   - Settings (#settings-panel)
   ─────────────────────────────────────────────────────────── */

/* ── About modal ────────────────────────────────────────── */
#about-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;

  background: rgba(6, 8, 12, 0.78);
  backdrop-filter: blur(10px) saturate(1.2);
  -webkit-backdrop-filter: blur(10px) saturate(1.2);

  opacity: 0;
  pointer-events: none;
  transition: opacity var(--motion-base);
}
#about-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.about-card {
  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-lg);
  padding: 26px 28px 22px;

  width: 100%;
  max-width: 460px;
  max-height: calc(100vh - 48px);
  overflow-y: auto;

  box-shadow: var(--shadow-3);
  display: flex;
  flex-direction: column;
}

.about-title-row {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
}
.about-title {
  font: 600 18px/1.2 var(--font);
  color: var(--bright);
  letter-spacing: 0.005em;
  margin-bottom: 4px;
}
/* Version chip — sits next to the title in About. Bump the text inside
   #cgv-version on every release; styling is content-agnostic. */
.about-version {
  font: 500 10.5px/1 var(--mono);
  color: var(--accent-text);
  background: var(--accent-soft);
  border: 1px solid var(--accent-edge);
  border-radius: 999px;
  padding: 3px 9px;
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.about-sub {
  font: 500 10px/1 var(--font);
  color: var(--accent-text);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 18px;
}
.about-body {
  font: 400 12.5px/1.7 var(--font);
  color: var(--text);
}
.about-body p {
  margin-bottom: 8px;
}
.about-body strong {
  color: var(--bright);
  font-weight: 600;
}
.about-meta {
  margin-top: 14px;
  padding: 10px 14px;
  background: var(--accent-soft);
  border-left: 2px solid var(--accent);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  font-size: 12px;
  line-height: 1.55;
}
.about-meta strong {
  display: block;
  font: 600 9.5px/1 var(--font);
  color: var(--muted);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.about-dev-affil {
  font-size: 10.5px;
  color: var(--muted);
}

.about-lab {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--divider);
  font-size: 11px;
  color: var(--muted);
  line-height: 1.7;
}
.about-sponsors-hdr {
  margin-top: 16px;
  margin-bottom: 8px;
  font: 600 9.5px/1 var(--font);
  color: var(--muted);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.about-card .sponsor-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  border-radius: var(--r);
}

.about-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 18px;
  padding: 9px 22px;
  background: var(--surface-3);
  border: 1px solid var(--border);
  border-radius: var(--r);
  color: var(--text);
  font: 500 11.5px var(--font);
  letter-spacing: 0.06em;
  cursor: pointer;
  align-self: center;
  transition:
    color var(--motion-fast),
    background var(--motion-fast),
    border-color var(--motion-fast);
}
.about-close:hover {
  color: var(--bright);
  background: var(--surface-hover);
  border-color: var(--border-strong);
}

/* About watermark — tiny logo strip at the bottom of the card */
#about-watermark {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--divider);
  pointer-events: none;
  user-select: none;
}
#wm-cgv {
  width: 26px;
  height: 26px;
  opacity: 0.55;
  filter: brightness(1.4) saturate(0.5);
}
#wm-eye {
  width: 88px;
  height: 60px;
  opacity: 0.5;
  filter: brightness(1.6) saturate(0.4);
}

/* ── Screenshot dialog ──────────────────────────────────── */
#shot-overlay {
  position: fixed;
  inset: 0;
  z-index: 110;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;

  background: rgba(6, 8, 12, 0.78);
  backdrop-filter: blur(10px) saturate(1.2);
  -webkit-backdrop-filter: blur(10px) saturate(1.2);

  opacity: 0;
  pointer-events: none;
  transition: opacity var(--motion-fast);
}
#shot-overlay.open {
  opacity: 1;
  pointer-events: auto;
}
.shot-card {
  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-lg);
  padding: 24px 26px;
  max-width: 440px;
  width: 100%;
  max-height: calc(100vh - 48px);
  overflow-y: auto;
  box-shadow: var(--shadow-3);
}
.shot-title {
  font: 600 16px/1.2 var(--font);
  color: var(--bright);
  margin-bottom: 4px;
}
.shot-sub {
  font: 400 12px/1.5 var(--font);
  color: var(--muted);
  margin-bottom: 18px;
}
.shot-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 16px;
}
.shot-res {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 12px 6px;
  background: var(--surface-3);
  border: 1px solid var(--border);
  border-radius: var(--r);
  color: var(--text);
  font: 600 12.5px var(--font);
  letter-spacing: 0.04em;
  cursor: pointer;
  transition:
    color var(--motion-fast),
    background var(--motion-fast),
    border-color var(--motion-fast);
}
.shot-res span {
  font: 400 10.5px var(--mono);
  color: var(--muted);
  letter-spacing: 0;
}
.shot-res:hover {
  color: var(--bright);
  background: var(--surface-hover);
  border-color: var(--border-strong);
}
.shot-res.active {
  color: var(--bright);
  background: var(--accent-soft);
  border-color: var(--accent);
}
.shot-res.active span {
  color: var(--accent-text);
}

.shot-opt {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 13px;
  margin-bottom: 8px;
  background: var(--surface-3);
  border: 1px solid var(--border);
  border-radius: var(--r);
  color: var(--text);
  cursor: pointer;
  user-select: none;
  transition:
    background var(--motion-fast),
    border-color var(--motion-fast);
}
.shot-opt:hover {
  background: var(--surface-hover);
  border-color: var(--border-strong);
}
.shot-opt input[type='checkbox'] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
  width: 0;
  height: 0;
}
.shot-opt .shot-check {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1.5px solid var(--border-strong);
  border-radius: var(--r-sm);
  background: rgba(0, 0, 0, 0.28);
  color: transparent;
  transition:
    background var(--motion-fast),
    border-color var(--motion-fast),
    color var(--motion-fast);
}
.shot-opt .shot-check svg {
  width: 13px;
  height: 13px;
}
.shot-opt:hover .shot-check {
  border-color: var(--accent);
}
.shot-opt input[type='checkbox']:checked + .shot-check {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.shot-opt-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
  min-width: 0;
}
.shot-opt-title {
  font: 500 12px var(--font);
  color: var(--bright);
}
.shot-opt-sub {
  font: 400 10.5px var(--font);
  color: var(--muted);
  line-height: 1.45;
}

#shot-progress {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 0 6px;
  font: 500 11.5px var(--mono);
  color: var(--warn);
  visibility: hidden;
}
#shot-progress.running {
  visibility: visible;
}
.shot-spinner {
  width: 13px;
  height: 13px;
  border: 2px solid var(--border-strong);
  border-top-color: var(--warn);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  flex-shrink: 0;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.shot-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 4px;
}
.shot-cancel,
.shot-save {
  padding: 8px 18px;
  border-radius: var(--r);
  font: 500 11.5px var(--font);
  letter-spacing: 0.04em;
  cursor: pointer;
  transition:
    color var(--motion-fast),
    background var(--motion-fast),
    border-color var(--motion-fast);
}
.shot-cancel {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
}
.shot-cancel:hover {
  color: var(--bright);
  border-color: var(--border-strong);
  background: var(--surface-hover);
}
.shot-save {
  background: var(--accent-soft);
  border: 1px solid var(--accent);
  color: var(--accent-text);
}
.shot-save:hover {
  background: var(--accent);
  color: #fff;
}
.shot-save:disabled {
  opacity: 0.4;
  cursor: default;
}

/* ── Settings popover ───────────────────────────────────── */
#settings-panel {
  position: fixed;
  z-index: 50;
  width: 304px;
  max-height: 80vh;
  overflow-y: auto;

  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  border-radius: var(--r);
  box-shadow: var(--shadow-3);

  opacity: 0;
  transform: translateX(-6px);
  pointer-events: none;
  transition:
    opacity var(--motion-fast),
    transform var(--motion-fast);
}
#settings-panel.open {
  opacity: 1;
  transform: translateX(0);
  pointer-events: auto;
}

.sett-section {
  padding: 12px 14px 14px;
  border-bottom: 1px solid var(--divider);
}
.sett-section:last-child {
  border-bottom: none;
}
.sett-hdr {
  font: 600 9.5px/1 var(--font);
  color: var(--muted);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.sett-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 0;
  gap: 10px;
}
.sett-info {
  flex: 1;
  min-width: 0;
}
.sett-label {
  font: 500 12px var(--font);
  color: var(--text);
}
.sett-sub {
  font: 400 10.5px var(--font);
  color: var(--muted);
  margin-top: 2px;
  line-height: 1.4;
}

/* Sponsor logos (also used in About) */
.sponsor-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
}
.sponsor-img {
  width: 64px;
  height: 40px;
  object-fit: contain;
  opacity: 0.55;
  filter: brightness(0.95);
  transition: opacity var(--motion-fast);
}
.sponsor-img:hover {
  opacity: 1;
}
.sponsor-atlas {
  width: 64px;
  height: 40px;
}

.sponsor-img[src*="fapemig"] { width: 68px; height: 45px; }
.sponsor-img[src*="capes"] { width: 57px; height: 37px; }
.sponsor-img[src*="cnpq"] { width: 73px; height: 34px; }
.sponsor-img[src*="ufjf"] { width: 61px; height: 48px; }
.sponsor-img[src*="cern"] { width: 52px; height: 45px; }

/* Keyboard shortcuts list */
.sk-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 12px;
}
.sk-key {
  font: 600 10px var(--mono);
  color: var(--bright);
  background: var(--surface-3);
  border: 1px solid var(--border);
  border-bottom-color: var(--border-strong);
  border-radius: 3px;
  padding: 2px 7px;
  text-align: center;
  white-space: nowrap;
  align-self: center;
}
.sk-desc {
  font: 400 11px var(--font);
  color: var(--muted);
  display: flex;
  align-items: center;
}