/* ==========================================================================
   CHRONO BREACH // 时空裂隙：环带方舟 — Overlays (Loading, Title, Pause, Death, Debrief)
   Author: 星星恐龙
   ========================================================================== */

.overlay {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: none;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 50% 45%, rgba(8, 11, 17, 0.44), rgba(4, 6, 10, 0.80));
}

.overlay.visible {
  display: flex;
}

/* Scope backdrop-filter strictly to translucent paused/endgame modal overlays */
#pause-menu.overlay.visible,
#death-screen.overlay.visible,
#mission-complete-screen.overlay.visible {
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
}

/* --------------------------------------------------------------------------
   1. Streaming Asset Loading Screen (Opaque — Zero Backdrop Filter)
   -------------------------------------------------------------------------- */
#loading-screen {
  z-index: 40;
  background: radial-gradient(circle at 50% 42%, #101724 0%, #05070c 78%);
}

.loading-backdrop-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(228, 188, 112, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(94, 228, 255, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(circle at 50% 48%, #000 18%, transparent 72%);
  -webkit-mask-image: radial-gradient(circle at 50% 48%, #000 18%, transparent 72%);
  pointer-events: none;
}

.loading-inner {
  position: relative;
  z-index: 1;
  width: min(520px, 88vw);
  text-align: center;
}

.chrono-astrolabe {
  width: 96px;
  height: 96px;
  margin: 0 auto 18px;
}

.astrolabe-svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}

.astro-ring-outer {
  fill: none;
  stroke: rgba(228, 188, 112, 0.25);
  stroke-width: 1;
  stroke-dasharray: 4 6;
  transform-origin: 60px 60px;
  animation: astro-cw 14s linear infinite;
}

.astro-ring-mid {
  fill: none;
  stroke: rgba(94, 228, 255, 0.22);
  stroke-width: 1;
  stroke-dasharray: 2 8;
  transform-origin: 60px 60px;
  animation: astro-ccw 10s linear infinite;
}

.astro-arc-past {
  fill: none;
  stroke: var(--gold);
  stroke-width: 2.2;
  stroke-linecap: round;
  transform-origin: 60px 60px;
  animation: astro-cw 2.6s linear infinite;
}

.astro-arc-present {
  fill: none;
  stroke: var(--cyan);
  stroke-width: 2.2;
  stroke-linecap: round;
  transform-origin: 60px 60px;
  animation: astro-ccw 2.6s linear infinite;
}

.astro-core-diamond {
  fill: rgba(228, 188, 112, 0.14);
  stroke: var(--gold-bright);
  stroke-width: 1.2;
}

.astro-core-dot {
  fill: var(--cyan);
}

@keyframes astro-cw {
  to {
    transform: rotate(360deg);
  }
}

@keyframes astro-ccw {
  to {
    transform: rotate(-360deg);
  }
}

.loading-kicker,
.modal-kicker {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.22em;
  color: rgba(243, 245, 248, 0.65);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.loading-title {
  font-family: var(--font-cond);
  font-size: 40px;
  font-weight: 700;
  letter-spacing: 0.14em;
  line-height: 1;
  margin-bottom: 24px;
}

.loading-title span {
  display: block;
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.38em;
  color: var(--gold);
  margin-top: 8px;
}

.loading-bar-wrap {
  margin-bottom: 10px;
}

.loading-bar-track {
  width: 100%;
  height: 4px;
  background: rgba(255, 255, 255, 0.10);
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, calc(100% - 4px) 100%, 0 100%);
}

.loading-bar-fill {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--gold) 0%, var(--cyan) 100%);
  transition: width 0.12s ease-out;
}

.loading-ticks {
  display: flex;
  justify-content: space-between;
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  color: rgba(243, 245, 248, 0.32);
}

.loading-meta {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 11px;
  color: rgba(243, 245, 248, 0.78);
  margin-top: 6px;
}

.loading-meta em {
  font-style: normal;
  opacity: 0.68;
}

.loading-credit-line {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 28px;
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: rgba(243, 245, 248, 0.56);
}

.loading-credit-line .stardino-icon {
  width: 16px;
  height: 16px;
  opacity: 0.78;
}

/* --------------------------------------------------------------------------
   2. Live 3D Title Screen (Editorial Topbar + Compact Bottom-Left Dock)
   -------------------------------------------------------------------------- */
#title-screen.overlay {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  align-items: stretch;
  background:
    linear-gradient(180deg, rgba(5, 8, 13, 0.62) 0%, rgba(5, 8, 13, 0.0) 24%),
    linear-gradient(25deg, rgba(5, 8, 13, 0.86) 0%, rgba(5, 8, 13, 0.42) 38%, rgba(5, 8, 13, 0.0) 68%);
  padding: clamp(20px, 3vh, 34px) clamp(26px, 4vw, 56px);
}

#title-screen.overlay.visible {
  display: flex;
}

.title-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.title-brand-chip {
  display: flex;
  align-items: center;
  gap: 12px;
}

.ark-sigil {
  width: 34px;
  height: 34px;
  flex-shrink: 0;
}

.ark-sigil .sigil-hex {
  fill: rgba(10, 14, 22, 0.72);
  stroke: rgba(255, 255, 255, 0.24);
  stroke-width: 1.4;
}

.ark-sigil .sigil-past {
  fill: none;
  stroke: var(--gold);
  stroke-width: 2.2;
  stroke-linecap: round;
}

.ark-sigil .sigil-present {
  fill: none;
  stroke: var(--cyan);
  stroke-width: 2.2;
  stroke-linecap: round;
}

.ark-sigil .sigil-core {
  fill: #ffffff;
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand-code {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--ivory);
}

.brand-sub {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: rgba(243, 245, 248, 0.58);
}

/* Bottom Hero Dock */
.title-dock {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
}

.title-card {
  width: min(560px, 92vw);
  padding: 24px 28px;
  background: linear-gradient(145deg, rgba(10, 14, 21, 0.84) 0%, rgba(8, 11, 16, 0.72) 100%);
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-left: 3px solid var(--gold);
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.64);
}

.title-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--gold);
  margin-bottom: 6px;
}

.kicker-dot {
  width: 6px;
  height: 6px;
  background: var(--cyan);
  transform: rotate(45deg);
}

.hero-title {
  font-size: clamp(38px, 4.4vw, 56px);
  font-weight: 800;
  letter-spacing: 0.08em;
  line-height: 1.04;
  color: #ffffff;
  text-shadow: 0 4px 24px rgba(0, 0, 0, 0.68);
}

.hero-subtitle {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.28em;
  color: var(--cyan);
  margin: 6px 0 14px;
}

.hero-desc {
  font-size: 13.5px;
  line-height: 1.65;
  color: rgba(243, 245, 248, 0.84);
  margin-bottom: 20px;
}

.title-cta-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.btn-deploy {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  padding: 13px 28px;
}

.btn-deploy em {
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.2em;
  opacity: 0.78;
}

.title-tabs {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.title-tab-btn {
  cursor: pointer;
  padding: 11px 14px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: rgba(243, 245, 248, 0.84);
  font-family: var(--font-ui);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  transition: background 0.14s ease, border-color 0.14s ease, color 0.14s ease;
}

.title-tab-btn:hover,
.title-tab-btn.active {
  background: rgba(228, 188, 112, 0.14);
  border-color: var(--gold);
  color: #ffffff;
}

/* Expandable Title Drawer */
.title-drawer {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--gold);
  margin-bottom: 12px;
}

.drawer-close {
  cursor: pointer;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.16);
  color: rgba(243, 245, 248, 0.72);
  width: 24px;
  height: 24px;
  font-size: 11px;
  line-height: 1;
}

.drawer-close:hover {
  border-color: var(--gold);
  color: #ffffff;
}

.drawer-settings-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.inline-setting {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.inline-setting label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: rgba(243, 245, 248, 0.68);
}

.drawer-corner-note,
.corner-social-footer {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  color: rgba(243, 245, 248, 0.44);
}

.drawer-corner-note {
  margin-top: 12px;
  padding-top: 8px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.drawer-corner-note a,
.corner-social-tag a,
.corner-social-footer a {
  color: rgba(228, 188, 112, 0.72);
  text-decoration: none;
}

.drawer-corner-note a:hover,
.corner-social-tag a:hover,
.corner-social-footer a:hover {
  color: var(--gold-bright);
  text-decoration: underline;
}

.controls-categorized {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  font-size: 11.5px;
  line-height: 1.75;
  color: rgba(243, 245, 248, 0.84);
}

.ctrl-col-title {
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--cyan);
  margin-bottom: 4px;
  padding-bottom: 3px;
  border-bottom: 1px solid rgba(94, 228, 255, 0.24);
}

.title-corner-stack {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
}

.corner-social-tag {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 4px 10px;
  background: rgba(8, 12, 18, 0.48);
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  color: rgba(243, 245, 248, 0.48);
}

.title-live-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background: rgba(8, 12, 18, 0.66);
  border: 1px solid rgba(255, 255, 255, 0.12);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  color: rgba(243, 245, 248, 0.78);
}

.live-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
}

/* --------------------------------------------------------------------------
   3. Modal Panels (Pause, Death, Mission Complete)
   -------------------------------------------------------------------------- */
.modal-panel {
  width: min(460px, 90vw);
  padding: 28px 30px;
  background: linear-gradient(155deg, rgba(12, 16, 24, 0.96) 0%, rgba(8, 10, 16, 0.96) 100%);
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-left: 3px solid var(--gold);
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 16px 100%, 0 calc(100% - 16px));
  box-shadow: 0 28px 72px rgba(0, 0, 0, 0.88);
}

.modal-panel.modal-pause {
  width: min(740px, 92vw);
}

.modal-panel.danger {
  border-left-color: var(--crimson);
}

.modal-panel.victory {
  border-left-color: var(--gold);
  width: min(580px, 92vw);
}

.modal-panel h2 {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: 0.08em;
  line-height: 1.08;
  color: #ffffff;
  margin-bottom: 8px;
}

.modal-panel p {
  font-size: 13.5px;
  line-height: 1.6;
  color: rgba(243, 245, 248, 0.78);
  margin-bottom: 20px;
}

.pause-subnote {
  font-size: 11.5px;
  color: rgba(243, 245, 248, 0.58);
  margin-bottom: 18px;
}

.pause-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 28px;
  align-items: start;
}

.menu-controls {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.settings-select-triple {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.settings-select-triple .setting-row label {
  white-space: nowrap;
}

.pause-rec-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 6px;
}

.btn-rec {
  padding: 9px 10px;
  font-size: 11px;
  letter-spacing: 0.08em;
}

.btn-rec.is-recording {
  border-color: #ff4757;
  background: rgba(255, 71, 87, 0.22);
  color: #ffd5da;
}

.setting-row {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding-top: 4px;
}

.setting-row label {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: rgba(243, 245, 248, 0.76);
}

.pause-guide-col {
  padding-left: 22px;
  border-left: 1px solid rgba(255, 255, 255, 0.12);
}

.pause-guide-title {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--gold);
  margin-bottom: 12px;
}

.pause-keyguide {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 12px;
  font-size: 11.5px;
  color: rgba(243, 245, 248, 0.78);
}

.pause-keyguide b {
  color: var(--gold-bright);
  font-family: var(--font-mono);
  font-size: 10.5px;
}

.modal-author-seal {
  margin-top: 22px;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.10);
}

.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 18px 0 22px;
}

.stat-box {
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-left: 2px solid var(--cyan);
}

.stat-label {
  display: block;
  font-size: 10.5px;
  letter-spacing: 0.14em;
  color: rgba(243, 245, 248, 0.62);
  margin-bottom: 5px;
}

.stat-box strong {
  font-family: var(--font-cond);
  font-size: 30px;
  font-variant-numeric: tabular-nums;
  color: var(--gold-bright);
}

.victory-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

@media (max-width: 780px) {
  .pause-grid {
    grid-template-columns: 1fr;
  }
  .pause-guide-col {
    padding-left: 0;
    padding-top: 16px;
    border-left: none;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
  }
  .controls-categorized,
  .drawer-settings-grid,
  .settings-select-triple {
    grid-template-columns: 1fr;
  }
  .title-corner-stack {
    display: none;
  }
}