/* ==========================================================================
   RollSolo: The Iron Shore — Responsive Layout System
   Citations: architecture §1, §5, §6, §27.2
   ========================================================================== */

/* App Shell Container */
.app-shell {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Header & Primary Navigation */
.app-header {
  background-color: var(--surface-iron);
  border-bottom: 1px solid var(--border-iron);
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
}

.brand-group {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.brand-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: 0.08em;
}

.brand-title span {
  color: var(--accent-torch);
}

.srd-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  background-color: var(--surface-iron-raised);
  border: 1px solid var(--border-iron-subtle);
  border-radius: 9999px;
  padding: 0.15rem 0.65rem;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition-fast);
}

.srd-pill:hover {
  border-color: var(--border-iron-focus);
  color: var(--text-secondary);
}

.nav-user-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.user-badge {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* Main Content Workspace */
.app-main {
  flex: 1;
  display: flex;
  flex-direction: column;
}

/* View Containers */
.view-container {
  flex: 1;
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  padding: 1.5rem;
}

.view-container.narrow {
  max-width: 520px;
}

.view-container.medium {
  max-width: 860px;
}

/* 2-Column Game Play Layout (Architecture §5, §6) */
.game-workspace {
  display: grid;
  grid-template-columns: 420px 1fr;
  gap: 1.5rem;
  align-items: start;
  min-height: calc(100vh - 4rem);
}

.left-sheet-rail {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  position: sticky;
  top: 4.5rem;
  max-height: calc(100vh - 5.5rem);
  overflow-y: auto;
  padding-right: 0.5rem;
  scrollbar-width: thin;
  scrollbar-color: var(--border-iron) transparent;
}

.right-saga-rail {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  min-height: 100%;
}

/* Sticky Mobile Tab Switcher (Visible only on mobile/tablet <= 960px) */
.mobile-tab-bar {
  display: none;
  background-color: var(--surface-iron);
  border-bottom: 1px solid var(--border-iron);
  position: sticky;
  top: 3.5rem;
  z-index: 90;
}

.mobile-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  width: 100%;
}

.mobile-tab-btn {
  padding: 0.75rem;
  font-family: var(--font-display);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: transparent;
  border: none;
  border-bottom: 3px solid transparent;
  color: var(--text-muted);
  cursor: pointer;
  min-height: 44px;
}

.mobile-tab-btn.active {
  color: var(--accent-torch);
  border-bottom-color: var(--accent-torch);
  background-color: var(--surface-iron-raised);
}

/* Action Dock (Bottom Persistent Thumb Region) */
.action-dock {
  background-color: var(--surface-iron);
  border: 1px solid var(--border-iron);
  border-radius: var(--radius-lg);
  padding: 1rem;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  position: sticky;
  bottom: 1rem;
  z-index: 80;
  backdrop-filter: blur(8px);
}

.prompt-area-wrapper {
  position: relative;
  display: flex;
  flex-direction: column;
}

.prompt-textarea {
  width: 100%;
  min-height: 80px;
  max-height: 200px;
  background-color: var(--bg-void);
  border: 1px solid var(--border-iron);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-ui);
  font-size: 0.95rem;
  padding: 0.75rem;
  resize: vertical;
  line-height: 1.4;
  transition: var(--transition-fast);
}

.prompt-textarea:focus {
  border-color: var(--border-iron-focus);
}

.prompt-meta-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 0.35rem;
}

.char-counter {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.char-counter.warning {
  color: var(--outcome-weak-hit);
}

.char-counter.limit {
  color: var(--outcome-miss);
}

.action-controls-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.action-stat-selectors {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

/* --- Dice Options Collapsible Panel (Phase 1) --- */
.dice-options-panel {
  display: flex;
  background: rgba(0, 0, 0, 0.3);
  border: 1px dashed var(--border-iron);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.75rem;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.dice-options-controls {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.dice-option-group {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.dice-option-group label {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.dice-select {
  min-height: 32px !important;
  height: 32px !important;
  padding: 0.2rem 0.5rem !important;
  width: 110px;
}

.dice-select-adds {
  width: 65px !important;
}

.dice-options-tag {
  font-size: 0.75rem;
  color: var(--accent-gold);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.dice-options-note {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-style: italic;
}

/* --- Active Move Tactical Anchor Banner (Phase 2) --- */
.active-move-indicator {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(200, 155, 60, 0.12);
  border: 1px solid var(--accent-gold);
  border-radius: var(--radius-sm);
  padding: 0.4rem 0.75rem;
  margin-bottom: 0.5rem;
  font-size: 0.82rem;
  color: var(--text-primary);
}

.quick-move-btn.active {
  border-color: var(--accent-gold, #c89b3c) !important;
  background: rgba(200, 155, 60, 0.2) !important;
  color: var(--accent-gold, #c89b3c) !important;
}

/* Buttons and Inputs Touch Targets >= 44x44px */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 44px;
  min-width: 44px;
  padding: 0.5rem 1.25rem;
  font-family: var(--font-ui);
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--accent-torch);
  color: var(--bg-void);
  box-shadow: var(--shadow-torch);
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--accent-torch-hover);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: var(--surface-iron-raised);
  border-color: var(--border-iron);
  color: var(--text-primary);
}

.btn-secondary:hover:not(:disabled) {
  border-color: var(--border-iron-focus);
  color: var(--accent-torch);
}

.btn-danger {
  background-color: rgba(168, 56, 59, 0.2);
  border-color: var(--outcome-miss);
  color: #fca5a5;
}

.btn-danger:hover:not(:disabled) {
  background-color: var(--outcome-miss);
  color: var(--bg-void);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* Toast Container (Architecture §5.3) */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  z-index: 1000;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  background-color: var(--surface-iron-raised);
  border: 1px solid var(--border-iron);
  border-left: 4px solid var(--accent-torch);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  color: var(--text-primary);
  font-size: 0.875rem;
  box-shadow: var(--shadow-modal);
  min-width: 280px;
  max-width: 400px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  animation: toast-slide-in 200ms ease;
}

.toast.toast-error {
  border-left-color: var(--outcome-miss);
}

.toast.toast-success {
  border-left-color: var(--outcome-strong-hit);
}

@keyframes toast-slide-in {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* Modal Dialog Styles (Native <dialog> Support) */
dialog {
  background-color: var(--surface-iron);
  border: 1px solid var(--border-iron);
  border-radius: var(--radius-lg);
  color: var(--text-primary);
  padding: 1.5rem;
  max-width: 620px;
  width: 90%;
  margin: auto;
  box-shadow: var(--shadow-modal);
}

dialog::backdrop {
  background-color: var(--surface-overlay);
  backdrop-filter: blur(4px);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-iron);
  padding-bottom: 0.75rem;
  margin-bottom: 1rem;
}

.modal-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-iron);
}

/* Responsive Media Queries */
@media (max-width: 960px) {
  .game-workspace {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .mobile-tab-bar.active-game {
    display: block;
  }

  .left-sheet-rail {
    position: static;
    max-height: none;
    overflow-y: visible;
    padding-right: 0;
  }

  .left-sheet-rail.hidden-mobile,
  .right-saga-rail.hidden-mobile {
    display: none;
  }

  .view-container {
    padding: 1rem 0.75rem;
  }
}

@media (max-width: 640px) {
  .app-header {
    padding: 0.5rem 0.75rem;
    gap: 0.5rem;
  }

  .srd-pill {
    display: none;
  }

  .nav-user-group {
    gap: 0.4rem;
  }

  .btn-header-login {
    padding: 0.35rem 0.65rem;
    font-size: 0.8rem;
  }

  .lang-toggle-btn {
    padding: 0.35rem 0.55rem;
    font-size: 0.75rem;
  }
}