:root {
  --ink: #14171c;
  --ink-soft: #4a5160;
  --mist: #e8eef6;
  --panel: rgba(248, 250, 252, 0.9);
  --line: rgba(20, 23, 28, 0.12);
  --jade: #2f6f5e;
  --jade-deep: #1a4338;
  --cinnabar: #b33b2b;
  --gold: #c9a227;
  --moon: #7d8da6;
  --shadow: 0 18px 50px rgba(16, 22, 34, 0.2);
  --radius: 22px;
  --font-display: "ZCOOL QingKe HuangYou", "Noto Sans SC", sans-serif;
  --font-body: "Noto Sans SC", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: #c5cedd;
  line-height: 1.65;
  overflow-x: hidden;
}

.atmosphere {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 70% 45% at 15% 5%, rgba(201, 162, 39, 0.28), transparent 55%),
    radial-gradient(ellipse 65% 55% at 90% 15%, rgba(47, 111, 94, 0.35), transparent 52%),
    radial-gradient(ellipse 55% 45% at 45% 100%, rgba(125, 141, 166, 0.4), transparent 55%),
    linear-gradient(165deg, #d7e0ec 0%, #b8c4d6 48%, #9aa9c0 100%);
  animation: drift 20s ease-in-out infinite alternate;
}

.atmosphere::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(rgba(20, 23, 28, 0.055) 1px, transparent 1px);
  background-size: 20px 20px;
  opacity: 0.5;
  pointer-events: none;
}

@keyframes drift {
  from { transform: scale(1) translateY(0); }
  to { transform: scale(1.04) translateY(-1.5%); }
}

.app {
  width: min(740px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2.5rem 0 3.5rem;
}

.screen {
  display: none;
  animation: rise 0.55s ease both;
}

.screen.active {
  display: block;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.brand {
  margin-bottom: 2rem;
}

.brand.compact {
  margin-bottom: 1.25rem;
}

.brand-mark {
  margin: 0 0 0.65rem;
  font-family: var(--font-display);
  font-size: clamp(2.9rem, 10vw, 4.6rem);
  letter-spacing: 0.08em;
  line-height: 1;
  color: var(--jade-deep);
  text-shadow: 0 2px 0 rgba(248, 250, 252, 0.4);
}

.brand h1,
.game-top h2,
.event-panel h3,
#ending-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: 0.02em;
}

.brand h1,
#ending-title {
  font-size: clamp(1.5rem, 4.5vw, 2.05rem);
  color: var(--ink);
}

.lead {
  margin: 0.85rem 0 0;
  max-width: 36rem;
  color: var(--ink-soft);
  font-size: 1.02rem;
}

.end-age {
  margin: 0 0 0.4rem;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--cinnabar);
}

.start-form,
.event-panel,
.ending-stats {
  background: var(--panel);
  backdrop-filter: blur(10px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.start-form {
  padding: 1.4rem;
  display: grid;
  gap: 1.35rem;
}

.field {
  display: grid;
  gap: 0.45rem;
}

.field span,
.traits legend {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--ink-soft);
}

.field input {
  width: 100%;
  border: 1.5px solid rgba(20, 23, 28, 0.16);
  border-radius: 14px;
  padding: 0.85rem 1rem;
  font: inherit;
  background: rgba(255, 255, 255, 0.78);
  color: var(--ink);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.field input:focus {
  border-color: var(--jade);
  box-shadow: 0 0 0 3px rgba(47, 111, 94, 0.16);
}

.traits {
  margin: 0;
  padding: 0;
  border: 0;
  display: grid;
  gap: 0.7rem;
}

.traits legend {
  margin-bottom: 0.55rem;
  padding: 0;
}

.trait {
  display: block;
  cursor: pointer;
}

.trait input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.trait-card {
  display: grid;
  gap: 0.15rem;
  padding: 0.9rem 1rem;
  border-radius: 16px;
  border: 1.5px solid rgba(20, 23, 28, 0.12);
  background: rgba(255, 255, 255, 0.55);
  transition: transform 0.2s, border-color 0.2s, background 0.2s;
}

.trait-card strong {
  font-size: 1.05rem;
}

.trait-card small {
  color: var(--ink-soft);
  font-size: 0.88rem;
}

.trait input:checked + .trait-card,
.trait:hover .trait-card {
  border-color: var(--jade);
  background: rgba(214, 232, 226, 0.7);
  transform: translateY(-1px);
}

.trait input:focus-visible + .trait-card {
  box-shadow: 0 0 0 3px rgba(47, 111, 94, 0.18);
}

.btn {
  appearance: none;
  border: 0;
  cursor: pointer;
  font: inherit;
  font-weight: 500;
  border-radius: 999px;
  padding: 0.9rem 1.35rem;
  transition: transform 0.18s, background 0.18s, color 0.18s, box-shadow 0.18s;
}

.btn:active {
  transform: translateY(1px) scale(0.99);
}

.btn.primary {
  background: linear-gradient(135deg, var(--jade) 0%, var(--jade-deep) 100%);
  color: #f4fbf8;
  box-shadow: 0 10px 24px rgba(26, 67, 56, 0.3);
}

.btn.primary:hover {
  box-shadow: 0 14px 28px rgba(26, 67, 56, 0.36);
  transform: translateY(-1px);
}

.btn.ghost {
  background: transparent;
  color: var(--ink-soft);
  border: 1px solid var(--line);
  padding: 0.55rem 0.95rem;
}

.btn.ghost:hover {
  background: rgba(255, 255, 255, 0.45);
  color: var(--ink);
}

.btn.choice {
  width: 100%;
  text-align: left;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.72);
  border: 1.5px solid rgba(20, 23, 28, 0.12);
  color: var(--ink);
  padding: 0.95rem 1.05rem;
  box-shadow: none;
}

.btn.choice:hover:not(:disabled) {
  border-color: var(--jade);
  background: rgba(214, 232, 226, 0.8);
  transform: translateX(3px);
}

.btn.choice.danger:hover:not(:disabled) {
  border-color: var(--cinnabar);
  background: rgba(249, 226, 222, 0.85);
}

.btn.choice.immortal:hover:not(:disabled) {
  border-color: var(--gold);
  background: rgba(247, 236, 196, 0.85);
}

.btn.choice:disabled {
  opacity: 0.55;
  cursor: default;
}

.game-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.1rem;
}

.day-label {
  margin: 0 0 0.25rem;
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--cinnabar);
}

.game-top h2 {
  font-size: 1.7rem;
}

.realm-line {
  margin: 0.35rem 0 0;
  font-size: 0.92rem;
  color: var(--jade-deep);
  font-weight: 500;
}

.stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.65rem;
  margin-bottom: 1.1rem;
}

.stat {
  padding: 0.7rem 0.85rem;
  border-radius: 16px;
  background: rgba(248, 250, 252, 0.78);
  border: 1px solid var(--line);
  backdrop-filter: blur(8px);
}

.stat-head {
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
  font-size: 0.86rem;
  margin-bottom: 0.4rem;
}

.stat-head strong {
  font-weight: 500;
}

.stat-head span {
  color: var(--ink-soft);
  font-variant-numeric: tabular-nums;
}

.bar {
  height: 8px;
  border-radius: 999px;
  background: rgba(20, 23, 28, 0.08);
  overflow: hidden;
}

.bar > i {
  display: block;
  height: 100%;
  width: 0;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--moon), var(--jade));
  transition: width 0.45s ease;
}

.stat.warn .bar > i {
  background: linear-gradient(90deg, var(--gold), var(--cinnabar));
}

.stat.dao .bar > i {
  background: linear-gradient(90deg, #7aa8ff, #c9a227);
}

.stat.fortune .bar > i {
  background: linear-gradient(90deg, #e0b34e, #9a6b1f);
}

.event-panel {
  padding: 1.35rem 1.35rem 1.45rem;
}

.event-tag {
  display: inline-block;
  margin: 0 0 0.55rem;
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  background: rgba(201, 162, 39, 0.22);
  color: #7a5a10;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.event-panel h3 {
  font-size: 1.55rem;
  margin-bottom: 0.55rem;
}

.event-text {
  margin: 0 0 1.15rem;
  color: var(--ink-soft);
  white-space: pre-line;
}

.choices {
  display: grid;
  gap: 0.65rem;
}

.feedback {
  margin: 1rem 0 0;
  padding: 0.85rem 1rem;
  border-radius: 14px;
  background: rgba(47, 111, 94, 0.1);
  color: var(--jade-deep);
  font-size: 0.95rem;
  animation: rise 0.35s ease both;
}

.ending-stats {
  padding: 1.2rem;
  margin-bottom: 1.25rem;
  display: grid;
  gap: 0.55rem;
}

.ending-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.45rem 0;
  border-bottom: 1px dashed rgba(20, 23, 28, 0.12);
  font-size: 0.98rem;
}

.ending-row:last-child {
  border-bottom: 0;
}

.ending-row span:last-child {
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

@media (max-width: 560px) {
  .app {
    width: min(100% - 1.25rem, 740px);
    padding-top: 1.5rem;
  }

  .stats {
    grid-template-columns: 1fr;
  }

  .brand-mark {
    font-size: 2.7rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .atmosphere,
  .screen,
  .feedback,
  .bar > i,
  .btn,
  .trait-card {
    animation: none !important;
    transition: none !important;
  }
}