/* ==========================================================================
   Visual Novel — Global CSS Custom Properties
   ========================================================================== */

:root {
  /* Colors */
  --color-wrapper-bg: #000000;
  --color-border: #ffffff;
  --color-bg-layer: #1a1a2e;
  --color-character-placeholder: #7a9cc4;
  --color-toolbar-text: #888888;
  --color-name-tag-bg: #000000;
  --color-name-tag-text: #ffffff;
  --color-dialogue-text: #ffffff;
  --color-dialogue-box-bg: rgba(0, 0, 0, 0.65);
  --color-dialogue-box-border: rgba(255, 255, 255, 0.25);
  --color-input-border: rgba(255, 255, 255, 0.3);
  --color-input-border-focus: rgba(255, 255, 255, 0.7);
  --color-input-divider: rgba(255, 255, 255, 0.15);
  --color-send-border: rgba(255, 255, 255, 0.4);
  --color-send-hover-bg: rgba(255, 255, 255, 0.1);
  --color-log-panel-bg: rgba(0, 0, 0, 0.85);
  --color-log-player-text: #aaaaff;

  /* Border sizes (percentages of game-canvas dimensions) */
  --border-side-width: 3%;
  --border-top-bottom-height: 12%;

  /* Font stacks */
  --font-mono: "Courier New", Courier, monospace;

  /* Dialogue box sizing */
  --dialogue-box-width: 80%;
  --dialogue-box-margin-bottom: 2%;
}

/* ==========================================================================
   Reset & Base
   ========================================================================== */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  overflow: hidden;
}

/* ==========================================================================
   #game-wrapper — Outermost container
   ========================================================================== */

#game-wrapper {
  width: 100vw;
  height: 100vh;
  background-color: var(--color-wrapper-bg);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ==========================================================================
   #game-canvas — 16:9 aspect ratio game area
   ========================================================================== */

#game-canvas {
  position: relative;
  aspect-ratio: 16 / 9;
  max-width: 100vw;
  max-height: 100vh;
  width: 100vw;
  height: auto;
  overflow: hidden;
}

/* When height is the limiting dimension, width follows from aspect ratio */
@media (min-aspect-ratio: 16/9) {
  #game-canvas {
    width: auto;
    height: 100vh;
  }
}

/* ==========================================================================
   White borders — absolute positioning inside #game-canvas
   Left/right: 3% width | Top/bottom: 12% height
   ========================================================================== */

#border-top,
#border-bottom,
#border-left,
#border-right {
  position: absolute;
  background-color: var(--color-border);
  z-index: 10;
}

#border-left,
#border-right {
  top: 0;
  width: var(--border-side-width);
  height: 100%;
}

#border-left {
  left: 0;
}

#border-right {
  right: 0;
}

#border-top,
#border-bottom {
  left: var(--border-side-width);
  right: var(--border-side-width);
  height: var(--border-top-bottom-height);
}

#border-top {
  top: 0;
}

#border-bottom {
  bottom: 0;
}

/* ==========================================================================
   #game-content — Inner playable area (inset by border sizes)
   ========================================================================== */

#game-content {
  position: absolute;
  top: var(--border-top-bottom-height);
  bottom: var(--border-top-bottom-height);
  left: var(--border-side-width);
  right: var(--border-side-width);
  overflow: hidden;
}

/* ==========================================================================
   #background-layer
   ========================================================================== */

#background-layer {
  position: absolute;
  inset: 0;
  background-color: var(--color-bg-layer);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

/* Text placeholder shown until background images exist */
#background-label {
  color: rgba(255, 255, 255, 0.45);
  font-family: var(--font-mono);
  font-size: clamp(12px, 1.4vw, 18px);
  line-height: 1.7;
  text-align: center;
  max-width: 70%;
  pointer-events: none;
  user-select: none;
}

#background-layer.has-image #background-label {
  display: none;
}

#background-layer.is-bright #background-label {
  color: rgba(0, 0, 0, 0.45);
}

/* ==========================================================================
   #character-layer — Centered character sprite
   ========================================================================== */

#character-layer {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

#character-sprite {
  width: 180px;
  height: 420px;
  background-color: var(--color-character-placeholder);
  background-size: contain;
  background-position: center bottom;
  background-repeat: no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
}

/* Text placeholder on character sprite until PNG assets exist */
#character-sprite-label {
  color: rgba(255, 255, 255, 0.85);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.6;
  text-align: center;
  pointer-events: none;
  user-select: none;
}

#character-sprite.has-image #character-sprite-label {
  display: none;
}

/* ==========================================================================
   Toolbar — inside #border-top
   ========================================================================== */

#toolbar {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  gap: 0;
  white-space: nowrap;
}

.toolbar-btn {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-toolbar-text);
  background: none;
  border: none;
  cursor: pointer;
  letter-spacing: 1px;
  padding: 2px 6px;
}

.toolbar-divider {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-toolbar-text);
  letter-spacing: 1px;
  user-select: none;
}

/* ==========================================================================
   #ui-layer & Dialogue box
   ========================================================================== */

#ui-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

#dialogue-box {
  position: absolute;
  bottom: var(--dialogue-box-margin-bottom);
  left: 50%;
  transform: translateX(-50%);
  width: var(--dialogue-box-width);
  background: var(--color-dialogue-box-bg);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  border: 1px solid var(--color-dialogue-box-border);
  border-radius: 8px;
  padding: 20px 24px 16px;
  pointer-events: auto;
}

/* Character name tag */
#character-name {
  display: inline-block;
  background: var(--color-name-tag-bg);
  color: var(--color-name-tag-text);
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 3px 10px;
  margin-bottom: 10px;
}

/* Dialogue text */
#dialogue-text {
  color: var(--color-dialogue-text);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.8;
  min-height: 60px;
  cursor: default;
}

/* Pointer cursor while typewriter is active (class toggled by JS) */
#dialogue-text.is-typing {
  cursor: pointer;
}

/* "Click to continue" after a scripted line finishes */
#dialogue-text.awaiting-advance {
  cursor: pointer;
}

#dialogue-text.awaiting-advance::after {
  content: "点击继续 ▼";
  display: block;
  margin-top: 12px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.45);
  letter-spacing: 1px;
}

/* Story objective & mode hints */
#story-objective {
  font-family: var(--font-mono);
  font-size: 12px;
  color: #ef5da8;
  letter-spacing: 0.5px;
  margin-bottom: 10px;
  line-height: 1.5;
}

#mode-hint {
  font-family: var(--font-mono);
  font-size: 12px;
  color: rgba(255, 255, 255, 0.55);
  margin-top: 10px;
  line-height: 1.5;
}

#suggestion-chips {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 12px;
}

.suggestion-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: rgba(239, 93, 168, 0.85);
  letter-spacing: 0.5px;
}

.suggestion-chips-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.suggestion-chip {
  font-family: var(--font-mono);
  font-size: 11px;
  color: rgba(255, 255, 255, 0.85);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 4px;
  padding: 6px 10px;
  cursor: pointer;
  text-align: left;
  line-height: 1.4;
  max-width: 100%;
}

.suggestion-chip:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.4);
}

#advance-mainline-btn {
  display: block;
  width: 100%;
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: rgba(255, 255, 255, 0.7);
  background: transparent;
  border: 1px dashed rgba(255, 255, 255, 0.3);
  border-radius: 4px;
  padding: 8px 12px;
  cursor: pointer;
  letter-spacing: 1px;
}

#advance-mainline-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #ffffff;
}

/* Scripted mode: hide input, show click-to-continue only */
#dialogue-box.mode-scripted #player-input-area,
#dialogue-box.mode-scripted #suggestion-chips,
#dialogue-box.mode-scripted #advance-mainline-btn {
  display: none;
}

#dialogue-box.mode-interactive #player-input-area {
  display: flex;
}

/* ==========================================================================
   Player input area
   ========================================================================== */

#player-input-area {
  display: flex;
  flex-direction: row;
  align-items: center;
  border-top: 1px solid var(--color-input-divider);
  padding-top: 12px;
  margin-top: 12px;
}

#player-input {
  flex: 1;
  background: transparent;
  border: 1px solid var(--color-input-border);
  color: var(--color-dialogue-text);
  font-family: var(--font-mono);
  font-size: 14px;
  padding: 8px 12px;
  border-radius: 4px;
  outline: none;
}

#player-input::placeholder {
  color: rgba(255, 255, 255, 0.4);
}

#player-input:focus {
  border-color: var(--color-input-border-focus);
}

#send-btn {
  background: transparent;
  border: 1px solid var(--color-send-border);
  color: var(--color-dialogue-text);
  font-family: var(--font-mono);
  font-size: 14px;
  padding: 8px 16px;
  cursor: pointer;
  border-radius: 4px;
  margin-left: 8px;
  letter-spacing: 1px;
}

#send-btn:hover {
  background: var(--color-send-hover-bg);
}

/* Locked input state (class toggled by JS on #player-input-area) */
.input-locked input {
  opacity: 0.35;
  cursor: not-allowed;
}

.input-locked button {
  opacity: 0.35;
  cursor: not-allowed;
}

.input-locked button:hover {
  background: transparent;
}

/* ==========================================================================
   LOG panel — overlays #game-content
   ========================================================================== */

#log-panel {
  position: absolute;
  inset: 0;
  z-index: 100;
  overflow-y: auto;
  padding: 24px;
  background: var(--color-log-panel-bg);
  border-radius: 8px;
}

#log-panel-close {
  position: absolute;
  top: 16px;
  right: 16px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-dialogue-text);
  background: transparent;
  border: 1px solid var(--color-dialogue-box-border);
  border-radius: 4px;
  padding: 4px 10px;
  cursor: pointer;
}

#log-panel-close:hover {
  background: var(--color-send-hover-bg);
}

#log-panel-content {
  padding-top: 32px;
}

#log-panel .log-entry-npc {
  margin-bottom: 16px;
  color: var(--color-dialogue-text);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.6;
}

#log-panel .log-entry-npc .log-entry-name {
  display: inline-block;
  background: var(--color-name-tag-bg);
  color: var(--color-name-tag-text);
  font-size: 13px;
  padding: 3px 10px;
  margin-right: 8px;
}

#log-panel .log-entry-player {
  margin-bottom: 16px;
  color: var(--color-log-player-text);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.6;
  padding-left: 16px;
}

/* ==========================================================================
   Settings panel
   ========================================================================== */

#settings-panel {
  position: absolute;
  inset: 0;
  z-index: 110;
  overflow-y: auto;
  padding: 24px;
  background: var(--color-log-panel-bg);
  border-radius: 8px;
}

#settings-panel-close {
  position: absolute;
  top: 16px;
  right: 16px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-dialogue-text);
  background: transparent;
  border: 1px solid var(--color-dialogue-box-border);
  border-radius: 4px;
  padding: 4px 10px;
  cursor: pointer;
}

#settings-title {
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--color-dialogue-text);
  margin-bottom: 20px;
  font-weight: normal;
}

#settings-content {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--color-dialogue-text);
  line-height: 1.8;
  max-width: 520px;
}

#settings-content .settings-hint {
  margin-top: 16px;
  color: rgba(255, 255, 255, 0.65);
  font-size: 13px;
}

#settings-content .settings-example {
  margin-top: 12px;
  padding: 12px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 4px;
  font-size: 12px;
  line-height: 1.6;
  overflow-x: auto;
}

.settings-action-btn {
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-dialogue-text);
  background: transparent;
  border: 1px solid var(--color-send-border);
  border-radius: 4px;
  padding: 8px 16px;
  cursor: pointer;
}

.settings-action-btn:hover {
  background: var(--color-send-hover-bg);
}

/* ==========================================================================
   PROGRESS panel
   ========================================================================== */

#progress-panel {
  position: absolute;
  inset: 0;
  z-index: 105;
  overflow-y: auto;
  padding: 24px;
  background: var(--color-log-panel-bg);
  border-radius: 8px;
}

#progress-panel-close {
  position: absolute;
  top: 16px;
  right: 16px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-dialogue-text);
  background: transparent;
  border: 1px solid var(--color-dialogue-box-border);
  border-radius: 4px;
  padding: 4px 10px;
  cursor: pointer;
}

#progress-panel-content {
  padding-top: 32px;
  max-width: 640px;
}

.progress-title {
  font-family: var(--font-mono);
  font-size: 16px;
  color: #ef5da8;
  font-weight: normal;
  margin-bottom: 8px;
}

.progress-current {
  font-family: var(--font-mono);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 20px;
}

.progress-chapter {
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.progress-chapter.is-current h3 {
  color: #ef5da8;
}

.progress-chapter h3 {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--color-dialogue-text);
  font-weight: normal;
  margin-bottom: 6px;
}

.progress-status {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.45);
}

.progress-summary {
  font-family: var(--font-mono);
  font-size: 12px;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 8px;
  line-height: 1.5;
}

.progress-beats {
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.8;
}

.progress-mark {
  display: inline-block;
  width: 1.2em;
  color: #ef5da8;
}

.settings-subtitle {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--color-dialogue-text);
  margin: 20px 0 8px;
  font-weight: normal;
}

.settings-steps {
  margin: 8px 0 0 20px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.9;
}

.settings-table {
  width: 100%;
  max-width: 520px;
  border-collapse: collapse;
  font-size: 12px;
  margin-top: 12px;
}

.settings-table th,
.settings-table td {
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 8px 10px;
  text-align: left;
}

.settings-table th {
  color: rgba(255, 255, 255, 0.5);
  font-weight: normal;
}