@import url("variables.css");
@import url("components.css");

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--fs);
  min-height: 100vh;
  position: relative;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    radial-gradient(ellipse 70% 60% at 10% 30%, rgba(160, 120, 70, 0.05) 0%, transparent 70%),
    radial-gradient(ellipse 60% 70% at 90% 70%, rgba(100, 70, 30, 0.04) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.app-wrapper {
  max-width: 640px;
  margin: 0 auto;
  background: transparent;
  position: relative;
  z-index: 2;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 0 0 1px rgba(26, 15, 7, 0.06);
}

.main-content {
  flex: 1;
  padding: 1.5rem 1.2rem 5rem;
  transition: opacity 0.2s;
}

.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  max-width: 640px;
  margin: 0 auto;
  background: rgba(241, 233, 216, 0.94);
  backdrop-filter: blur(12px);
  border-top: 1px solid rgba(26, 15, 7, 0.2);
  display: flex;
  justify-content: space-around;
  padding: 0.6rem 0.8rem max(1rem, env(safe-area-inset-bottom));
  z-index: 20;
  font-family: var(--fk);
}

.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.2rem;
  background: none;
  border: none;
  font-size: 0.72rem;
  color: var(--ink3);
  font-family: var(--fk);
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: 0.2s;
  padding: 0.25rem 0.75rem;
  border-radius: 30px;
  min-height: 44px;
  min-width: 44px;
}

.nav-item.active {
  color: var(--red);
  background: rgba(154, 32, 32, 0.08);
}

.nav-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.45rem;
  height: 1.45rem;
  line-height: 0;
  color: var(--ink3);
  transition: color 0.2s, transform 0.2s;
}

.nav-item:hover .nav-icon,
.nav-item:focus-visible .nav-icon {
  color: var(--ink);
  transform: translateY(-2px);
}

.nav-item.active .nav-icon {
  color: var(--red);
}

.nav-icon svg {
  width: 100%;
  height: 100%;
  display: block;
}

@media (prefers-reduced-motion: reduce) {
  .nav-item:hover .nav-icon,
  .nav-item:focus-visible .nav-icon {
    transform: none;
  }
}

.icon-svg {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--ink);
  transition: color 0.2s, transform 0.2s;
}

.icon-svg svg {
  width: 100%;
  height: 100%;
  display: block;
}

.icon-svg--card {
  width: 2.25rem;
  height: 2.25rem;
  margin: 0 auto 0.15rem;
}

.tech-card:hover .icon-svg--card,
.tech-card:focus-visible .icon-svg--card {
  color: var(--red);
  transform: translateY(-2px);
}

.tech-card.active .icon-svg--card {
  color: var(--paper);
}

.icon-svg--detail {
  width: 2.75rem;
  height: 2.75rem;
  flex-shrink: 0;
}

.detail-panel-head {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.6rem;
}

@media (prefers-reduced-motion: reduce) {
  .tech-card:hover .icon-svg--card,
  .tech-card:focus-visible .icon-svg--card {
    transform: none;
  }
}

.skip-link {
  position: absolute;
  left: -9999px;
  z-index: 100;
  padding: 0.5rem 1rem;
  background: var(--ink);
  color: var(--paper);
  border-radius: 4px;
}

.skip-link:focus {
  left: 0.5rem;
  top: 0.5rem;
}

.hero {
  text-align: center;
  margin-bottom: 2rem;
}

.seal-mini {
  width: 48px;
  height: 48px;
  border: 1.5px solid var(--red);
  border-radius: 2px;
  font-size: 1.4rem;
  line-height: 44px;
  margin: 0 auto 0.8rem;
  color: var(--red);
  font-family: var(--fk);
  transform: rotate(-4deg);
}

h1 {
  font-family: var(--font-title);
  font-size: clamp(1.35rem, 4.2vw, 1.75rem);
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 1.5;
  color: var(--ink);
  margin-bottom: 0.4rem;
  max-width: 22em;
  margin-left: auto;
  margin-right: auto;
}

h2 {
  font-family: var(--fk);
}

.slogan {
  font-size: 0.8rem;
  color: var(--ink3);
  letter-spacing: 0.04em;
  margin-top: 0.35rem;
  margin-bottom: 1.25rem;
  border-bottom: 1px dashed rgba(0, 0, 0, 0.1);
  display: inline-block;
  padding-bottom: 0.4rem;
}

/* 儒道 / 五术页：主标题沿用副标题字体（正文栈），字号略大于原 .slogan */
.hero-page-title {
  font-family: var(--fs);
  font-size: clamp(1.05rem, 3.2vw, 1.28rem);
  font-weight: 500;
  color: var(--ink2);
  letter-spacing: 0.04em;
  line-height: 1.5;
  margin-top: 0;
  margin-bottom: 1.25rem;
  border-bottom: 1px dashed rgba(0, 0, 0, 0.1);
  display: inline-block;
  padding-bottom: 0.45rem;
  max-width: 22em;
  margin-left: auto;
  margin-right: auto;
}

.btn-dual {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin: 1.8rem 0 2rem;
}

.btn {
  background: transparent;
  border: 1px solid var(--ink2);
  padding: 0.7rem 1.2rem;
  font-family: var(--fk);
  font-size: 0.9rem;
  letter-spacing: 0.15em;
  border-radius: 40px;
  cursor: pointer;
  transition: 0.2s;
  color: var(--ink2);
  min-height: 44px;
}

.btn-primary {
  background: var(--ink);
  color: var(--paper);
  border: none;
}

.btn-primary:hover,
.btn-primary:active {
  background: #3a2416;
}

.card-grid {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin: 1rem 0;
}

.card {
  background: rgba(255, 255, 255, 0.45);
  backdrop-filter: blur(2px);
  border: 1px solid rgba(26, 15, 7, 0.12);
  border-radius: 16px;
  padding: 1rem 1.2rem;
  transition: 0.2s;
}

.card-title {
  font-family: var(--fk);
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--ink2);
  margin-bottom: 0.5rem;
  flex-wrap: wrap;
}

.pillar-badge {
  font-size: 0.7rem;
  background: var(--gold);
  color: #fef3e4;
  padding: 0.2rem 0.6rem;
  border-radius: 20px;
}

@media (prefers-color-scheme: dark) {
  .pillar-badge {
    color: #1a1612;
  }
}

.five-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: 0.8rem;
  margin: 1.5rem 0;
}

.tech-card {
  background: rgba(232, 220, 198, 0.5);
  text-align: center;
  padding: 0.8rem 0.3rem;
  border-radius: 24px;
  cursor: pointer;
  border: 1px solid rgba(0, 0, 0, 0.05);
  transition: background 0.2s, color 0.2s, border-color 0.2s;
  min-height: 44px;
  font: inherit;
  color: inherit;
  width: 100%;
}

.tech-card:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 2px;
}

.tech-card.active {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

.tech-card > .icon-svg {
  display: flex;
}

.detail-panel {
  margin-top: 1.5rem;
  background: rgba(255, 255, 240, 0.4);
  border-left: 3px solid var(--red);
  padding: 1rem;
  border-radius: 12px;
}

@media (prefers-color-scheme: dark) {
  .detail-panel {
    background: rgba(40, 34, 28, 0.5);
  }
}

.associate-link {
  color: var(--gold-link);
  text-decoration: underline;
  cursor: pointer;
  font-weight: 500;
  display: inline-block;
  margin-top: 0.5rem;
}

.associate-link:focus-visible {
  outline: 2px solid var(--gold-link);
  outline-offset: 2px;
}

.quote-block {
  background: rgba(138, 101, 16, 0.08);
  padding: 0.8rem;
  border-radius: 12px;
  font-style: italic;
  margin: 1rem 0;
}

.tool-box {
  background: rgba(255, 255, 240, 0.5);
  padding: 1rem;
  border-radius: 20px;
}

@media (prefers-color-scheme: dark) {
  .tool-box {
    background: rgba(40, 34, 28, 0.45);
  }
}

.disclaimer {
  font-size: 0.7rem;
  line-height: 1.5;
  color: var(--ink3);
  margin-top: 1rem;
  padding: 0.75rem;
  background: rgba(26, 15, 7, 0.04);
  border-radius: 12px;
  border: 1px dashed rgba(26, 15, 7, 0.12);
}

.site-footer {
  text-align: center;
  font-size: 0.65rem;
  margin-top: 1.5rem;
  padding-bottom: 0.5rem;
  color: var(--ink3);
  line-height: 1.6;
}

.footer-note {
  text-align: center;
  font-size: 0.65rem;
  margin-top: 1rem;
  color: var(--ink3);
}

hr {
  margin: 1rem 0;
  border: none;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 0, 0, 0.2), transparent);
}

.page {
  display: none;
}

.page.active-page {
  display: block;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

@keyframes fade {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page.active-page {
  animation: fade 0.25s ease;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

select#birthSeason {
  width: 100%;
  padding: 0.6rem;
  background: rgba(255, 255, 240, 0.7);
  border: 1px solid var(--ink3);
  border-radius: 30px;
  font-family: inherit;
  font-size: 0.9rem;
}

@media (prefers-color-scheme: dark) {
  select#birthSeason {
    background: rgba(40, 34, 28, 0.6);
    color: var(--ink);
    border-color: var(--ink3);
  }
}

#calcWuXingBtn {
  margin-top: 1rem;
  width: 100%;
  background: var(--ink);
  color: white;
}

#wuxingResult[hidden] {
  display: none !important;
}