/* layout.css — Mobile-first screen and zone layouts
   Designed for 390px portrait. Everything scales up from there.          */

/* ── Screen container ─────────────────────────────────────────────────── */

.screen {
  display: none;
  position: fixed;
  inset: 0;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
}

.screen--active {
  display: flex;
  flex-direction: column;
}

/* ── Start Screen ─────────────────────────────────────────────────────── */

#screen-start {
  align-items: center;
  justify-content: center;
}

.start__backdrop {
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse at 50% 60%, rgba(26,70,26,0.8) 0%, var(--color-bg) 70%);
  z-index: -1;
}

.start__content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-5);
  padding: var(--space-8) var(--space-6);
  text-align: center;
  max-width: 360px;
  width: 100%;
}

.start__title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  color: var(--color-accent);
  text-shadow: 0 2px 8px rgba(0,0,0,0.6);
  letter-spacing: 0.03em;
}

.start__subtitle {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-top: calc(-1 * var(--space-3));
}

/* ── Setup Screen ─────────────────────────────────────────────────────── */

#screen-setup {
  flex-direction: column;
  gap: 0;
}

.screen-header {
  padding: var(--space-5) var(--space-4) var(--space-3);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-surface);
  position: sticky;
  top: 0;
  z-index: var(--z-card);
}

.screen-header__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-accent);
  text-align: center;
}

.setup-section {
  padding: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.setup-section__title {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-3);
}

.difficulty-picker {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.difficulty-option {
  display: flex;
  align-items: stretch;
}

.difficulty-option input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.difficulty-option__card {
  flex: 1;
  padding: var(--space-3) var(--space-4);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-surface);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.difficulty-option input:checked + .difficulty-option__card {
  border-color: var(--color-accent);
  background: var(--color-bg-raised);
}

.difficulty-option__name {
  font-weight: 600;
  color: var(--color-text);
}

.difficulty-option__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.explorer-roster {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.explorer-card {
  display: grid;
  grid-template-columns: 56px 1fr;
  grid-template-rows: auto auto;
  gap: var(--space-1) var(--space-3);
  padding: var(--space-3);
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  align-items: center;
}

.explorer-card__portrait-placeholder {
  grid-row: 1 / 3;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: var(--color-bg-raised);
  border: 1px dashed var(--color-border-strong);
}

.explorer-card__name {
  font-weight: 600;
  font-size: var(--text-md);
  color: var(--color-text);
  align-self: end;
}

.explorer-card__expertise {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: var(--space-1);
  align-self: start;
}

.explorer-card__desc {
  grid-column: 1 / 3;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  padding-top: var(--space-1);
  border-top: 1px solid var(--color-border);
}

.setup-footer {
  padding: var(--space-4);
  margin-top: auto;
}

/* ── Game Screen ──────────────────────────────────────────────────────── */

#screen-game {
  display: none;
  flex-direction: column;
  height: 100dvh;        /* dynamic viewport height for mobile browsers */
  overflow: hidden;
}

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

/* Expedition track */
.expedition-track {
  flex: 0 0 auto;
  padding: var(--space-2) var(--space-3);
  background: var(--color-bg-surface);
  border-bottom: 1px solid var(--color-border);
  position: relative;
}

.expedition-track__slots {
  display: flex;
  gap: var(--space-1);
  align-items: center;
  justify-content: space-between;
}

.expedition-slot {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg-raised);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  transition: background var(--transition-fast), border-color var(--transition-fast);
  position: relative;
}

.expedition-slot--active {
  border-color: var(--color-accent);
  background: rgba(212, 168, 67, 0.15);
  color: var(--color-accent);
}

.expedition-slot--end {
  border-color: var(--color-accent);
  font-weight: 700;
}

.expedition-slot--passed {
  opacity: 0.5;
}

.expedition-slot__num {
  font-size: var(--text-xs);
  font-weight: 600;
}

.expedition-track__pawn {
  position: absolute;
  bottom: -6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-pawn);
  border: 2px solid var(--color-bg);
  box-shadow: 0 0 0 2px var(--color-accent);
  transition: left var(--transition-slow);
  transform: translateX(-50%);
}

/* Phase bar */
.phase-bar {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--color-bg-raised);
  border-bottom: 1px solid var(--color-border);
  font-size: var(--text-sm);
}

.phase-bar__phase {
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.phase-bar__icon {
  font-size: var(--text-md);
}

.phase-bar__round {
  margin-left: auto;
  color: var(--color-text-muted);
  font-size: var(--text-xs);
}

/* ── Path zone — main content area ───────────────────────────────────── */

.path-zone {
  flex: 1 1 auto;
  overflow: hidden;
  background: var(--color-bg);
  position: relative;
}

.path-zone__scroll {
  display: flex;
  height: 100%;
  /* center cards vertically — they use fixed height, not stretch */
  align-items: center;
  justify-content: safe center;
  padding-inline: var(--space-4);
  padding-block: var(--space-3);
  gap: var(--space-3);
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.path-zone__scroll::-webkit-scrollbar {
  display: none;
}

/* ── Card detail bottom sheet ─────────────────────────────────────────── */

.card-sheet {
  position: fixed;
  inset: 0;
  z-index: 150;
  pointer-events: none;
}

.card-sheet:not([hidden]) {
  pointer-events: auto;
}

.card-sheet__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.55);
}

.card-sheet__panel {
  position: absolute;
  top: 50%;
  left: 50%;
  right: auto;
  bottom: auto;
  width: min(92vw, 400px);
  background: var(--color-bg-surface);
  border-radius: var(--radius-xl);
  padding: var(--space-4);
  max-height: 88vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  transform: translate(-50%, -50%) scale(0.9);
  opacity: 0;
  transition: transform 0.22s cubic-bezier(0.34, 1.2, 0.64, 1),
              opacity 0.18s ease;
}

.card-sheet:not([hidden]) .card-sheet__panel {
  transform: translate(-50%, -50%) scale(1);
  opacity: 1;
}

.card-sheet__handle {
  display: none;
}

.card-sheet__content {
  flex: 1 1 auto;
  min-height: 0;
}

.card-sheet__close {
  align-self: center;
  margin-top: var(--space-1);
}

/* ── Floating hand FAB ────────────────────────────────────────────────── */

.hand-fab {
  position: fixed;
  bottom: max(80px, calc(60px + env(safe-area-inset-bottom)));
  right: var(--space-4);
  z-index: 250;
  background: var(--color-accent);
  color: var(--color-bg);
  border: none;
  border-radius: var(--radius-full);
  padding: var(--space-2) var(--space-4);
  font-weight: 700;
  font-size: var(--text-sm);
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(0,0,0,0.4);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.hand-fab:active {
  transform: scale(0.95);
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.hand-fab[hidden] { display: none; }

/* Explorer panels */
.explorer-panels {
  flex: 0 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--color-border);
}

/* Resource bar */
.resource-bar {
  flex: 0 0 auto;
  display: flex;
  gap: var(--space-4);
  align-items: center;
  padding: var(--space-2) var(--space-4);
  background: var(--color-bg-surface);
  border-top: 1px solid var(--color-border);
}

/* Action bar */
.action-bar {
  flex: 0 0 auto;
  padding: var(--space-3) var(--space-4);
  padding-bottom: max(var(--space-3), env(safe-area-inset-bottom));
  background: var(--color-bg-surface);
  border-top: 1px solid var(--color-border);
}

/* ── End Screen ───────────────────────────────────────────────────────── */

#screen-end {
  align-items: center;
  justify-content: center;
}

.end__content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-5);
  padding: var(--space-8) var(--space-6);
  text-align: center;
  max-width: 360px;
  width: 100%;
}

.end__result {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  color: var(--color-accent);
}

.end__reason {
  color: var(--color-text-muted);
  font-size: var(--text-base);
}

.end__score {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
}

/* ── Modal layer ──────────────────────────────────────────────────────── */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.75);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: var(--z-modal);
  padding: var(--space-4);
  padding-bottom: max(var(--space-4), env(safe-area-inset-bottom));
}

.modal-overlay[hidden] {
  display: none;
}

.modal {
  width: 100%;
  max-width: 440px;
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-xl) var(--radius-xl) var(--radius-md) var(--radius-md);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  max-height: 82vh;
  overflow: hidden;
}

/* Body scrolls; title + actions stay pinned */
#modal-body {
  overflow-y: auto;
  flex: 1 1 auto;
  min-height: 0;
}

.modal__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-accent);
  text-align: center;
}

.modal__actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}