/* ═══════════════════════════════════════════
   LAYOUT — Screen container, grid helpers, layout primitives
   ═══════════════════════════════════════════ */

/* ── Screen base ── */
.screen {
  display: none;
  min-height: 100vh;
}

.screen.active {
  display: flex;
  flex-direction: column;
  animation: screen-enter var(--dur-slow) ease-out 0.1s both;
}

/* Game screen overrides display to ensure correct layout */
#screen-game {
  display: none;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100dvh;
  height: 100vh;
  height: 100dvh;
  padding: 0;
  overflow: hidden;
}

#screen-game.active {
  display: flex;
}

/* ── Game single-column vertical stack ── */
.mountain-view {
  display: flex;
  flex: 1;
  min-height: 0;
  overflow: hidden;
  gap: 0;
}

.route-strip {
  display: flex;
  flex-direction: column;
  width: 2.2rem;
  flex-shrink: 0;
  border-right: 1px solid var(--border);
  padding: 0.4rem 0;
  overflow: hidden;
  align-items: center;
}

.mountain-main {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
  padding: clamp(0.6rem, 1.5vh, 1.1rem) clamp(0.75rem, 2vw, 1.25rem);
  overflow-y: auto;
  gap: 0.5rem;
}

/* ── Watch band horizontal layout ── */
.watch-band {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  flex-shrink: 0;
  cursor: pointer;
  user-select: none;
}

/* ── Watch detail overlay layout ── */
.watch-status-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(220px, 0.85fr);
  gap: 0.85rem;
  align-items: start;
}

.watch-core-column,
.watch-status-column {
  min-width: 0;
}

.watch-status-column {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* ── Legacy game layout kept for overlay/overlay compat ── */
.game-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(290px, 34vw);
  gap: clamp(0.6rem, 1.2vw, 1rem);
  flex: 1;
  max-width: 1240px;
  min-height: 0;
  margin: 0 auto;
  width: 100%;
}

.game-layout-redesign {
  grid-template-columns: minmax(280px, 0.95fr) minmax(0, 1.4fr);
}

.status-stack {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  min-height: 0;
  overflow: auto;
  padding-right: 0.2rem;
}

/* ── Containers ── */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* ── Telemetry grid inside watch ── */
.telemetry-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.65rem;
}

.telemetry-card {
  padding: 0.75rem;
  border: 1px solid color-mix(in srgb, var(--border) 85%, transparent);
  background: color-mix(in srgb, var(--surface2) 48%, transparent);
}

/* ── Status row (permit + time pressure) ── */
.status-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 0.65rem;
  align-items: stretch;
}

/* ── Shared panel shell ── */
.panel-shell {
  border: 1px solid var(--border);
  background: linear-gradient(180deg,
    color-mix(in srgb, var(--surface) 92%, var(--surface2)),
    var(--surface));
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: var(--shadow-soft), var(--shadow-inset);
}

.panel-title {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 0.7rem;
}

/* ── Screen-level inner shells ── */
.screen-inner {
  max-width: 860px;
  width: 100%;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

/* ── Welcome top controls — fixed overlays ── */
.title-top-controls {
  position: fixed;
  top: 1rem;
  left: 1rem;
  right: 1rem;
  z-index: 1000;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
}

.title-utility-cluster {
  display: inline-flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.45rem;
}

.theme-switcher,
.lang-switcher {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--mono);
  font-size: 0.75rem; /* Decision 9: minimum 12px → 0.75rem at 16px base */
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-soft);
  background: color-mix(in srgb, var(--surface) 72%, transparent);
  border: 1px solid color-mix(in srgb, var(--border) 82%, transparent);
  padding: 0.35rem 0.45rem;
  border-radius: 999px;
  backdrop-filter: blur(8px);
}

.lang-switch {
  display: inline-flex;
  gap: 0.2rem;
  border: 1px solid color-mix(in srgb, var(--border) 82%, transparent);
  border-radius: 999px;
  padding: 0.2rem;
  background: color-mix(in srgb, var(--surface) 72%, transparent);
  backdrop-filter: blur(8px);
}

.lang-btn {
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--text-soft);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.32rem 0.54rem;
  cursor: pointer;
}

.lang-btn[aria-pressed='true'] {
  color: #081019;
  background: linear-gradient(120deg, #d6eef9, #d9b996);
}

.lang-btn:focus-visible {
  outline: 2px solid #d6eef9;
  outline-offset: 1px;
}

.theme-select {
  background: color-mix(in srgb, var(--surface2) 90%, transparent);
  color: var(--text-soft);
  border: 1px solid color-mix(in srgb, var(--border) 80%, transparent);
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.2rem 0.35rem;
  cursor: pointer;
}

.theme-select-minimal {
  min-width: 3.25rem;
  padding: 0.16rem 1.1rem 0.16rem 0.35rem;
  border-radius: 999px;
}

.switcher-icon {
  color: var(--stone);
  font-size: 0.72rem;
  line-height: 1;
}

/* ── Utility classes ── */
.text-center { text-align: center; }
.flex-col { display: flex; flex-direction: column; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}