/* ═══════════════════════════════════════════════════════════
   base.css —— 结构层（主题无关）
   所有颜色/字体/圆角/装饰全部走 CSS 变量，由 themes.css 按
   [data-theme] 赋值。本文件只管布局、间距、动效与组件骨架。
   ═══════════════════════════════════════════════════════════ */

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

[hidden] { display: none !important; }

html { -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.75;
  min-height: 100dvh;
  transition: background .35s ease, color .35s ease;
}

#app {
  max-width: 34rem;
  margin: 0 auto;
  padding: 0 1.25rem calc(2rem + env(safe-area-inset-bottom));
}

.screen { padding-top: 1.5rem; animation: screenIn .4s ease both; }
.screen-center {
  min-height: 82dvh;
  display: flex; flex-direction: column;
  justify-content: center; align-items: center; gap: 2rem;
}
@keyframes screenIn {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: none; }
}

button { font-family: inherit; cursor: pointer; }
a { color: inherit; }

/* ── 按钮 ── */
.btn {
  display: block; width: 100%;
  padding: .95rem 1.5rem;
  font-size: 1.05rem; font-weight: 600;
  border: var(--btn-border);
  border-radius: var(--radius-btn);
  background: var(--btn-bg); color: var(--btn-ink);
  letter-spacing: .12em;
  transition: transform .12s ease, opacity .2s ease, box-shadow .2s ease;
}
.btn:active { transform: scale(.975); }
.btn-primary { box-shadow: var(--btn-shadow); }
.btn-ghost {
  background: transparent; color: var(--ink);
  border: 1px solid var(--line-strong);
  box-shadow: none; font-weight: 500; font-size: .95rem;
}

/* ═══════════ 开场屏 ═══════════ */

.intro-masthead { text-align: center; padding: 2.2rem 0 1.4rem; }
.masthead-kicker {
  font-size: .8rem; letter-spacing: .5em; text-indent: .5em;
  color: var(--muted); margin-bottom: 1rem;
}
.masthead-title {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 11vw, 3.4rem);
  font-weight: var(--display-weight);
  letter-spacing: .06em;
  line-height: 1.2;
  color: var(--title-ink);
  font-style: var(--display-style);
  text-shadow: var(--title-shadow);
}
.masthead-sub { margin-top: .9rem; font-size: .88rem; color: var(--muted); letter-spacing: .18em; }

.intro-desc {
  text-align: center; font-size: .95rem; color: var(--ink-soft);
  margin: .9rem 0;
}
.intro-desc-em { color: var(--ink); font-weight: 600; }

/* 主题选择 */
.theme-picker { margin: 2rem 0 1.4rem; }
.theme-picker-label {
  text-align: center; font-size: .85rem; color: var(--muted);
  margin-bottom: .8rem; letter-spacing: .1em;
}
.theme-picker-row { display: flex; gap: .7rem; }
.theme-chip {
  flex: 1; padding: .8rem .4rem .7rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-card);
  background: var(--card-bg);
  text-align: center;
  transition: transform .15s ease, box-shadow .2s ease, border-color .2s ease;
}
.theme-chip:active { transform: scale(.96); }
.theme-chip.on { border: var(--chip-on-border); box-shadow: var(--chip-on-shadow); }
.theme-chip-dots { display: flex; justify-content: center; gap: .3rem; margin-bottom: .5rem; }
.theme-chip-dots i {
  width: .72rem; height: .72rem; border-radius: 50%;
  border: 1px solid rgba(0,0,0,.12);
}
.theme-chip-name { font-size: .92rem; font-weight: 700; letter-spacing: .05em; }
.theme-chip-vibe { font-size: .72rem; color: var(--muted); margin-top: .15rem; }

.btn-start { margin: 1.2rem 0 2rem; font-size: 1.2rem; padding: 1.05rem; }

.gallery-teaser {
  text-align: center; font-size: .82rem; color: var(--muted);
  letter-spacing: .08em; margin-bottom: 2rem;
}

/* 验收工具 */
.dev-tools {
  margin: 0 0 2rem; border: 1px dashed var(--line);
  border-radius: var(--radius-card); padding: .7rem .9rem;
  font-size: .85rem; color: var(--muted);
}
.dev-tools summary { cursor: pointer; letter-spacing: .1em; user-select: none; }
.dev-tools-note { margin: .6rem 0; font-size: .78rem; }
.dev-tools-row { display: flex; flex-wrap: wrap; gap: .5rem; }
.dev-tools-row .btn { width: auto; flex: 1 1 40%; padding: .55rem .6rem; font-size: .82rem; letter-spacing: .05em; }

.site-footer {
  text-align: center; font-size: .72rem; color: var(--muted);
  line-height: 2; padding: 1.2rem 0 .4rem;
  border-top: 1px solid var(--line);
}
.site-footer a { text-decoration: none; border-bottom: 1px dotted currentColor; }

/* ═══════════ 答题屏 ═══════════ */

.quiz-top { margin-bottom: 1.2rem; }
.quiz-progress-text {
  display: flex; justify-content: space-between; align-items: baseline;
  font-size: .82rem; color: var(--muted); letter-spacing: .15em;
  margin-bottom: .45rem;
}
.quiz-progress-bar {
  height: var(--bar-h); background: var(--bar-track);
  border-radius: var(--bar-h); overflow: hidden;
}
.quiz-progress-bar i {
  display: block; height: 100%; width: 0;
  background: var(--bar-fill);
  transition: width .5s cubic-bezier(.4, 0, .2, 1);
}

.scene-card {
  background: var(--card-bg);
  border: var(--card-border);
  border-radius: var(--radius-card);
  padding: 1.35rem 1.3rem 1.2rem;
  box-shadow: var(--card-shadow);
  position: relative;
  overflow: hidden;
}
.scene-card::before { content: var(--scene-deco, none); }

.scene-arena {
  font-family: var(--font-display);
  font-size: 1.45rem; font-weight: var(--display-weight);
  font-style: var(--display-style);
  letter-spacing: .05em; line-height: 1.35;
  color: var(--title-ink);
}
.scene-role {
  display: inline-block; margin: .55rem 0 .8rem;
  font-size: .78rem; letter-spacing: .06em;
  padding: .18rem .6rem;
  background: var(--role-bg); color: var(--role-ink);
  border-radius: var(--radius-chip);
  border: var(--role-border);
}
.scene-text { font-size: .98rem; }
.scene-stake {
  margin-top: .8rem; font-size: .88rem; color: var(--muted);
  font-style: italic;
  padding-left: .8rem; border-left: 2px solid var(--accent);
}

/* 选项 */
.options { margin-top: 1.1rem; display: grid; gap: .65rem; padding-bottom: 2rem; }
.option {
  text-align: left; width: 100%;
  background: var(--opt-bg);
  border: var(--opt-border);
  border-radius: var(--radius-opt);
  padding: .85rem 1.05rem;
  font-size: .95rem; line-height: 1.65; color: var(--ink);
  box-shadow: var(--opt-shadow);
  transition: transform .13s ease, box-shadow .2s ease, border-color .2s ease, background .2s ease;
  animation: optIn .45s ease both;
}
.option:nth-child(1) { animation-delay: .03s; }
.option:nth-child(2) { animation-delay: .08s; }
.option:nth-child(3) { animation-delay: .13s; }
.option:nth-child(4) { animation-delay: .18s; }
.option:nth-child(5) { animation-delay: .23s; }
.option:nth-child(6) { animation-delay: .28s; }
@keyframes optIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: none; }
}
@media (hover: hover) {
  .option:hover { border-color: var(--accent); box-shadow: var(--opt-hover-shadow); }
}
.option:active { transform: scale(.98); }

/* 选后走向 */
.aftermath { margin-top: 1.1rem; padding-bottom: 2.5rem; animation: screenIn .35s ease both; }
.aftermath-said {
  background: var(--said-bg); color: var(--said-ink);
  border: var(--said-border);
  border-radius: var(--radius-opt);
  padding: .85rem 1.05rem; margin-bottom: .9rem;
  box-shadow: var(--opt-shadow);
}
.aftermath-said-label {
  font-size: .72rem; letter-spacing: .3em; opacity: .75; margin-bottom: .25rem;
}
.aftermath-said-text { font-size: .97rem; font-weight: 600; line-height: 1.65; }

.aftermath-panel {
  background: var(--after-bg);
  border: var(--after-border);
  border-left: var(--after-left);
  border-radius: var(--radius-card);
  padding: 1rem 1.1rem;
  margin-bottom: 1.2rem;
}
.tone-chip {
  display: inline-block; font-size: .72rem; font-weight: 700;
  letter-spacing: .2em; padding: .15rem .65rem;
  border-radius: var(--radius-chip);
  background: var(--tone-bg); color: var(--tone-ink);
  border: var(--tone-border);
  margin-bottom: .5rem;
}
.aftermath-text { font-size: .95rem; color: var(--ink-soft); }

/* ═══════════ 幕间转场 ═══════════ */

.interlude-card { text-align: center; padding: 1rem; }
.interlude-act {
  font-size: .85rem; letter-spacing: .6em; text-indent: .6em;
  color: var(--accent); font-weight: 700; margin-bottom: 1rem;
}
.interlude-title {
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 9vw, 2.8rem);
  font-weight: var(--display-weight); font-style: var(--display-style);
  letter-spacing: .1em; color: var(--title-ink);
  text-shadow: var(--title-shadow);
}
.interlude-domains { margin-top: .8rem; font-size: .82rem; color: var(--muted); letter-spacing: .3em; }
.interlude-line {
  margin: 1.6rem auto 0; max-width: 17em;
  font-size: 1.02rem; color: var(--ink-soft);
}
.interlude-progress { margin-top: 1.4rem; font-size: .78rem; color: var(--muted); letter-spacing: .2em; }
#screen-interlude .btn { max-width: 16rem; }

/* 结算过场 */
.settle-text { font-size: 1.05rem; letter-spacing: .3em; color: var(--ink-soft); }
.settle-dots i { animation: blink 1.2s infinite; font-style: normal; }
.settle-dots i:nth-child(2) { animation-delay: .2s; }
.settle-dots i:nth-child(3) { animation-delay: .4s; }
@keyframes blink { 0%, 60%, 100% { opacity: .15; } 30% { opacity: 1; } }

/* ═══════════ 结果屏 ═══════════ */

.result-kicker {
  text-align: center; font-size: .8rem; letter-spacing: .6em; text-indent: .6em;
  color: var(--muted); margin: .6rem 0 1rem;
}

.award-card {
  position: relative; text-align: center;
  background: var(--award-bg);
  border: var(--award-border);
  border-radius: var(--radius-card);
  padding: 2.2rem 1.4rem 1.8rem;
  box-shadow: var(--award-shadow);
  overflow: hidden;
  margin-bottom: 1.1rem;
}
.award-card.egg::after {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(115deg, transparent 42%, var(--shine) 50%, transparent 58%);
  background-size: 240% 100%;
  animation: shine 3.2s ease-in-out infinite;
}
@keyframes shine {
  0% { background-position: 120% 0; }
  55%, 100% { background-position: -120% 0; }
}
.award-egg-badge {
  position: absolute; top: .95rem; right: -2.1rem;
  transform: rotate(38deg);
  font-size: .72rem; font-weight: 700; letter-spacing: .25em;
  padding: .22rem 2.4rem;
  background: var(--accent); color: var(--accent-contrast);
}
.award-main {
  font-family: var(--font-display);
  font-size: clamp(2rem, 9vw, 2.7rem);
  font-weight: var(--display-weight); font-style: var(--display-style);
  letter-spacing: .08em; line-height: 1.3;
  color: var(--title-ink);
  text-shadow: var(--title-shadow);
}
.award-flavor { margin-top: .4rem; font-size: .9rem; color: var(--accent); font-weight: 700; letter-spacing: .15em; }

.type-code { display: flex; justify-content: center; gap: .55rem; margin: 1.15rem 0 1rem; }
.type-code b {
  width: 2.7rem; height: 2.7rem;
  display: grid; place-items: center;
  font-family: var(--font-display);
  font-size: 1.35rem; font-weight: var(--display-weight);
  background: var(--code-bg); color: var(--code-ink);
  border: var(--code-border);
  border-radius: var(--radius-chip);
}
.type-code span {
  display: block; font-size: .6rem; color: var(--muted);
  font-weight: 400; letter-spacing: 0; margin-top: .15rem;
}
.type-code .cell { display: flex; flex-direction: column; align-items: center; }

.award-desc { font-size: .95rem; color: var(--ink-soft); max-width: 19em; margin: 0 auto; }
.award-base {
  margin-top: 1.1rem; font-size: .85rem; color: var(--muted);
  padding-top: .9rem; border-top: 1px dashed var(--line);
}
.award-base b { color: var(--ink); }

/* 通用模块卡 */
.rmodule {
  background: var(--card-bg);
  border: var(--card-border);
  border-radius: var(--radius-card);
  box-shadow: var(--card-shadow);
  padding: 1.15rem 1.2rem 1.25rem;
  margin-bottom: 1.1rem;
}
.rmodule-title {
  font-size: .82rem; font-weight: 700; letter-spacing: .35em;
  color: var(--muted); margin-bottom: 1rem;
}

/* 四轴滑条 */
.slider { margin-bottom: 1.25rem; }
.slider:last-child { margin-bottom: .2rem; }
.slider-head {
  display: flex; justify-content: space-between; align-items: baseline;
  font-size: .78rem; color: var(--muted); margin-bottom: .4rem;
}
.slider-head .dominant { color: var(--ink); font-weight: 700; font-size: .88rem; }
.slider-track {
  position: relative; height: var(--track-h);
  background: var(--track-bg);
  border-radius: var(--track-h);
  border: var(--track-border);
}
.slider-track::before {
  content: ''; position: absolute; left: 50%; top: -3px; bottom: -3px;
  width: 1px; background: var(--line-strong); opacity: .6;
}
.slider-dot {
  position: absolute; top: 50%;
  width: var(--dot-size); height: var(--dot-size);
  transform: translate(-50%, -50%);
  background: var(--dot-bg);
  border: var(--dot-border);
  border-radius: 50%;
  box-shadow: var(--dot-shadow);
  transition: left .8s cubic-bezier(.34, 1.3, .5, 1);
}
.slider-poles {
  display: flex; justify-content: space-between;
  font-size: .82rem; margin-top: .35rem; color: var(--ink-soft);
}
.slider-poles b { font-family: var(--font-display); font-size: .95rem; }
.slider-note { font-size: .8rem; color: var(--muted); margin-top: .4rem; }
.slider-note.sig { color: var(--accent); font-weight: 600; }
.wobble-footnote { font-size: .76rem; color: var(--muted); margin-top: .8rem; text-align: center; }

/* 战术指纹 */
.badges { display: grid; gap: .6rem; }
.badge {
  text-align: left; width: 100%;
  display: block;
  background: var(--opt-bg);
  border: var(--opt-border);
  border-radius: var(--radius-opt);
  padding: .7rem .95rem;
}
.badge-head { display: flex; align-items: baseline; gap: .5rem; }
.badge-name { font-weight: 700; font-size: .98rem; }
.badge-count { font-size: .8rem; color: var(--accent); font-weight: 700; }
.badge-blurb { font-size: .82rem; color: var(--muted); margin-top: .25rem; }
.badges-empty { font-size: .85rem; color: var(--muted); }

/* 名场面回放 */
.replay {
  border: var(--card-border);
  border-radius: var(--radius-opt);
  padding: .95rem 1rem;
  margin-bottom: .8rem;
  background: var(--opt-bg);
}
.replay:last-child { margin-bottom: 0; }
.replay-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: .45rem; }
.replay-arena { font-weight: 700; font-size: .92rem; }
.replay-why { font-size: .7rem; color: var(--accent); letter-spacing: .1em; }
.replay-quote { font-size: .95rem; margin-bottom: .5rem; }
.replay-quote::before { content: '「'; color: var(--muted); }
.replay-quote::after { content: '」'; color: var(--muted); }
.replay-after { font-size: .85rem; color: var(--muted); margin-bottom: .55rem; }
.replay-insight {
  border-top: 1px dashed var(--line);
  padding-top: .55rem; font-size: .82rem; color: var(--ink-soft);
}
.replay-insight b { color: var(--accent); margin-right: .4rem; }

/* 天敌与搭子 */
.relation-row { display: grid; grid-template-columns: 1fr 1fr; gap: .7rem; }
.relation {
  border: var(--card-border); border-radius: var(--radius-opt);
  padding: .85rem .9rem; background: var(--opt-bg);
}
.relation-tag { font-size: .72rem; letter-spacing: .3em; color: var(--accent); font-weight: 700; }
.relation-name { font-weight: 700; font-size: 1.02rem; margin: .3rem 0 .1rem; }
.relation-code { font-size: .78rem; color: var(--muted); margin-bottom: .4rem; }
.relation-line { font-size: .78rem; color: var(--muted); }
@media (max-width: 420px) { .relation-row { grid-template-columns: 1fr; } }

/* 图鉴 */
.gallery-count { color: var(--accent); letter-spacing: .1em; }
.gallery { display: grid; gap: .55rem; }
.gallery-item {
  display: flex; align-items: baseline; gap: .6rem;
  font-size: .85rem;
  padding: .5rem .7rem;
  border: 1px dashed var(--line);
  border-radius: var(--radius-chip);
}
.gallery-item.unlocked { border: var(--card-border); background: var(--opt-bg); }
.gallery-item .g-mark { font-size: .8rem; color: var(--muted); flex: none; }
.gallery-item.unlocked .g-mark { color: var(--accent); }
.gallery-item .g-name { font-weight: 700; }
.gallery-item .g-clue { color: var(--muted); font-size: .78rem; }

/* 小账 */
.ledger { display: grid; grid-template-columns: repeat(4, 1fr); gap: .5rem; text-align: center; }
.ledger-cell { padding: .5rem .2rem; }
.ledger-num {
  font-family: var(--font-display);
  font-size: 1.5rem; font-weight: var(--display-weight);
  color: var(--title-ink);
}
.ledger-label { font-size: .72rem; color: var(--muted); letter-spacing: .1em; }

.result-cta { display: grid; gap: .7rem; margin: 1.6rem 0 1rem; }

/* ═══════════ 浮动换肤 / toast ═══════════ */

.theme-fab {
  position: fixed; right: 1rem; bottom: calc(1.2rem + env(safe-area-inset-bottom));
  z-index: 40;
  width: 3rem; height: 3rem; border-radius: 50%;
  font-size: .72rem; font-weight: 700; letter-spacing: .05em;
  background: var(--fab-bg); color: var(--fab-ink);
  border: var(--fab-border);
  box-shadow: 0 4px 16px rgba(0, 0, 0, .18);
}
.theme-sheet {
  position: fixed; inset: 0; z-index: 50;
  background: rgba(0, 0, 0, .45);
  display: flex; align-items: flex-end; justify-content: center;
  animation: fadeIn .2s ease;
}
@keyframes fadeIn { from { opacity: 0; } }
.theme-sheet-inner {
  width: 100%; max-width: 34rem;
  background: var(--bg);
  border-radius: 18px 18px 0 0;
  padding: 1.3rem 1.25rem calc(1.6rem + env(safe-area-inset-bottom));
  animation: sheetUp .25s ease;
}
@keyframes sheetUp { from { transform: translateY(40%); } }
.theme-sheet-inner .theme-picker-row { margin-top: .9rem; }
.theme-sheet-title { font-size: .9rem; font-weight: 700; letter-spacing: .2em; color: var(--muted); }

.toast {
  position: fixed; left: 50%; bottom: 5.2rem; z-index: 60;
  transform: translateX(-50%);
  background: var(--ink); color: var(--bg);
  font-size: .85rem; padding: .5rem 1.1rem;
  border-radius: 99px;
  animation: fadeIn .25s ease;
  max-width: 85vw; text-align: center;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}