@font-face {
  font-family: "PortalKai";
  src: url("./assets/fonts/portal-kai.v1.3.0.woff2") format("woff2");
  font-display: swap;
}

@font-face {
  font-family: "PortalText";
  src: url("./assets/fonts/portal-text.v1.3.0.woff2") format("woff2");
  font-display: swap;
}

:root {
  color-scheme: light;
  --page: #f5f5f7;
  --surface: rgba(255, 255, 255, 0.88);
  --surface-solid: #ffffff;
  --surface-muted: #f2f2f7;
  --text: #1d1d1f;
  --secondary: #6e6e73;
  --tertiary: #86868b;
  --line: rgba(0, 0, 0, 0.08);
  --blue: #0071e3;
  --blue-hover: #0077ed;
  --blue-soft: rgba(0, 113, 227, 0.1);
  --red: #d70015;
  --green: #248a3d;
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.06);
  --font-display: "PortalKai", "STKaiti", "KaiTi", serif;
  --font-ui: "PortalText", -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --page: #000000;
  --surface: rgba(28, 28, 30, 0.9);
  --surface-solid: #1c1c1e;
  --surface-muted: #2c2c2e;
  --text: #f5f5f7;
  --secondary: #aeaeb2;
  --tertiary: #8e8e93;
  --line: rgba(255, 255, 255, 0.11);
  --blue: #2997ff;
  --blue-hover: #40a9ff;
  --blue-soft: rgba(41, 151, 255, 0.14);
  --red: #ff453a;
  --green: #30d158;
  --shadow: 0 18px 54px rgba(0, 0, 0, 0.28);
}

* { box-sizing: border-box; }
html {
  min-height: 100%;
  background: var(--page);
  -webkit-text-size-adjust: 100%;
}
body {
  min-height: 100vh;
  min-height: 100dvh;
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 15% -10%, rgba(0, 113, 227, 0.08), transparent 35rem),
    radial-gradient(circle at 100% 18%, rgba(175, 82, 222, 0.06), transparent 30rem),
    var(--page);
  font-family: var(--font-ui);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background-color 180ms ease, color 180ms ease;
}

button, input { font: inherit; }
button { cursor: pointer; }
button, input, label { -webkit-tap-highlight-color: transparent; }
button:focus-visible, input:focus-visible, label:focus-within {
  outline: 3px solid color-mix(in srgb, var(--blue) 36%, transparent);
  outline-offset: 3px;
}

.page-shell {
  width: min(1080px, calc(100% - 40px));
  margin: 0 auto;
  padding:
    max(28px, env(safe-area-inset-top))
    max(0px, env(safe-area-inset-right))
    max(36px, env(safe-area-inset-bottom))
    max(0px, env(safe-area-inset-left));
}

.site-header,
.panel-heading,
.category-heading,
.transfer-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.site-header {
  min-height: 98px;
  margin-bottom: 22px;
}
.brand-block { min-width: 0; }
.portal-link {
  display: inline-flex;
  min-height: 24px;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  color: var(--secondary);
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 650;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
}
.portal-link:hover { color: var(--blue); }
.portal-mark {
  display: grid;
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
  grid-template-columns: repeat(2, 7px);
  grid-template-rows: repeat(2, 7px);
  gap: 2px;
}
.portal-mark span {
  display: block;
  border-radius: 50%;
  background: currentColor;
}
.portal-mark span:nth-child(2) { border-radius: 3px; }
.portal-mark span:nth-child(3) {
  width: 16px;
  height: 5px;
  grid-column: 1 / 3;
  border-radius: 999px;
}
.header-actions {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 10px;
}
.app-version {
  display: inline-flex;
  min-height: 32px;
  align-items: center;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--secondary);
  background: var(--surface);
  font-size: 0.76rem;
  font-weight: 650;
  line-height: 1;
  white-space: nowrap;
}
.section-kicker {
  margin: 0 0 6px;
  color: var(--blue);
  font-size: 0.86rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

h1, h2, h3, p { margin-top: 0; }
h1, h2, h3, .result { font-family: var(--font-display); }
h1 {
  margin-bottom: 4px;
  font-size: clamp(2.55rem, 7vw, 5rem);
  font-weight: 750;
  line-height: 0.98;
  letter-spacing: -0.06em;
}
h2 {
  margin-bottom: 0;
  font-size: clamp(1.55rem, 3vw, 2.05rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.04em;
}
h3 {
  margin-bottom: 0;
  font-size: 1.04rem;
  font-weight: 650;
  letter-spacing: -0.02em;
}
.brand-subtitle,
.panel-description,
.category-count,
.transfer-card p,
.result-meta,
.availability-note,
.category-empty,
.empty-copy,
footer { color: var(--secondary); }
.brand-subtitle { margin: 0; font-size: 0.98rem; }

.icon-button,
.primary-button,
.secondary-button,
.compact-button,
.plain-button,
.remove-button {
  min-height: 44px;
  border: 0;
  transition: background-color 150ms ease, color 150ms ease, transform 150ms ease, opacity 150ms ease;
  touch-action: manipulation;
}
.icon-button:active,
.primary-button:active,
.secondary-button:active,
.compact-button:active { transform: scale(0.98); }
.icon-button {
  width: 44px;
  height: 44px;
  flex: 0 0 auto;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 50%;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  font-size: 1.05rem;
}

main { display: grid; gap: 22px; }
.decision-card,
.panel {
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.decision-card {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  min-height: 470px;
  display: grid;
  justify-items: center;
  align-content: center;
  padding: 54px 32px;
  text-align: center;
  background: var(--surface-solid);
  border-radius: 34px;
}
.decision-glow {
  position: absolute;
  z-index: -1;
  width: 420px;
  height: 420px;
  top: -270px;
  left: 50%;
  transform: translateX(-50%);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 113, 227, 0.18), transparent 68%);
  filter: blur(6px);
}
.status-pill {
  margin-bottom: 34px;
  padding: 8px 13px;
  color: var(--blue);
  background: var(--blue-soft);
  border-radius: 999px;
  font-size: 0.79rem;
  font-weight: 600;
}
.result-label {
  margin-bottom: 10px;
  color: var(--secondary);
  font-size: 0.92rem;
  font-weight: 600;
}
.category-result {
  margin: 0 0 10px;
  color: var(--blue);
  font-size: 0.98rem;
  font-weight: 600;
}
.result {
  min-height: 1.2em;
  max-width: 900px;
  margin-bottom: 16px;
  font-size: clamp(2.8rem, 9vw, 6.8rem);
  font-weight: 760;
  line-height: 1.04;
  letter-spacing: -0.065em;
  text-wrap: balance;
}
.result.is-picking { animation: pulse 260ms ease-in-out infinite alternate; }
.result.is-stage-final { animation: stage-settle 260ms ease-out; }
.result.is-final { animation: settle 420ms cubic-bezier(.2, .8, .2, 1); }
.result-meta { max-width: 640px; margin-bottom: 28px; font-size: 0.94rem; line-height: 1.5; }
.decision-actions { display: flex; align-items: center; justify-content: center; gap: 8px; }
.primary-button {
  min-width: 154px;
  padding: 12px 22px;
  color: #fff;
  background: var(--blue);
  border-radius: 999px;
  font-weight: 600;
}
.primary-button:hover { background: var(--blue-hover); }
.primary-button:disabled { cursor: not-allowed; opacity: 0.38; }
.availability-note { min-height: 1.4em; margin: 14px 0 0; font-size: 0.82rem; }

.panel {
  padding: 28px;
  background: var(--surface);
  border-radius: 28px;
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
}
.panel-heading { align-items: flex-end; }
.panel-description { margin: 8px 0 0; font-size: 0.9rem; }
.primary-button,
.secondary-button,
.compact-button { white-space: nowrap; }
.secondary-button,
.compact-button {
  color: var(--blue);
  background: var(--blue-soft);
  border-radius: 999px;
  font-weight: 600;
}
.secondary-button { padding: 10px 16px; }
.compact-button { padding: 9px 14px; }
.secondary-button:hover,
.compact-button:hover { background: color-mix(in srgb, var(--blue) 16%, transparent); }
.plain-button,
.remove-button {
  padding: 8px 10px;
  color: var(--blue);
  background: transparent;
  border-radius: 10px;
  font-weight: 600;
}
.plain-button:hover { background: var(--blue-soft); }
.remove-button { min-height: 36px; color: var(--tertiary); font-size: 0.8rem; }
.remove-button:hover { color: var(--red); background: color-mix(in srgb, var(--red) 8%, transparent); }

.menu-tools {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 0.8fr);
  gap: 14px;
  margin-top: 24px;
}
.add-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  padding: 14px;
  background: var(--surface-solid);
  border: 1px solid var(--line);
  border-radius: 20px;
}
.add-form input,
.add-item-form input {
  width: 100%;
  min-width: 0;
  color: var(--text);
  background: transparent;
  border: 0;
  outline: 0;
  font-size: 16px;
}
.add-form input { min-height: 44px; padding: 7px 5px; }
.add-form input::placeholder,
.add-item-form input::placeholder { color: var(--tertiary); }
.transfer-card {
  align-items: flex-start;
  flex-wrap: wrap;
  padding: 16px;
  background: var(--surface-solid);
  border: 1px solid var(--line);
  border-radius: 20px;
}
.transfer-card p { margin: 5px 0 0; font-size: 0.82rem; line-height: 1.45; }
.transfer-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px; }
.file-button { cursor: pointer; }
.file-button input {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}
.transfer-status { width: 100%; min-height: 1.2em; margin: 2px 0 0; color: var(--secondary); font-size: 0.8rem; }
.transfer-status[data-type="success"] { color: var(--green); }
.transfer-status[data-type="error"] { color: var(--red); }

.category-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}
.category-card {
  min-width: 0;
  padding: 20px;
  background: var(--surface-solid);
  border: 1px solid var(--line);
  border-radius: 22px;
}
.category-heading { align-items: flex-start; }
.category-count { margin: 5px 0 0; font-size: 0.8rem; }
.subitem-list {
  display: grid;
  gap: 1px;
  padding: 0;
  margin: 16px 0 0;
  overflow: hidden;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 14px;
  list-style: none;
}
.item-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-width: 0;
  min-height: 48px;
  padding: 6px 8px 6px 13px;
  background: var(--surface-solid);
}
.item-name {
  overflow: hidden;
  font-size: 0.91rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.category-empty { margin: 14px 0 0; font-size: 0.82rem; line-height: 1.5; }
.add-item-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
  padding: 4px 6px 4px 12px;
  background: var(--surface-muted);
  border-radius: 14px;
}
.add-item-form input { min-height: 44px; }

.empty-state {
  margin-top: 18px;
  padding: 38px 22px;
  color: var(--secondary);
  text-align: center;
  background: var(--surface-solid);
  border: 1px dashed var(--line);
  border-radius: 22px;
}
.history-panel { padding-bottom: 18px; }
.history-list {
  display: grid;
  padding: 0;
  margin: 18px 0 0;
  list-style: none;
}
.history-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 52px;
  padding: 10px 2px;
  border-bottom: 1px solid var(--line);
}
.history-list li:last-child { border-bottom: 0; }
.history-choice { display: grid; gap: 3px; }
.history-choice strong { font-size: 0.96rem; font-weight: 600; }
.history-category,
.history-time { color: var(--secondary); font-size: 0.78rem; }
.history-time { flex: 0 0 auto; }
.empty-copy { margin: 18px 0 4px; }
footer {
  padding: 22px 6px 0;
  text-align: center;
  font-size: 0.78rem;
  line-height: 1.5;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@keyframes pulse {
  from { transform: scale(0.985); opacity: 0.72; }
  to { transform: scale(1.015); opacity: 1; }
}
@keyframes stage-settle {
  0% { transform: scale(0.94); opacity: 0.2; }
  100% { transform: scale(1); opacity: 1; }
}
@keyframes settle {
  0% { transform: translateY(8px) scale(0.96); opacity: 0; }
  100% { transform: translateY(0) scale(1); opacity: 1; }
}

/* iPad：横屏、竖屏和分屏均保持清晰的双栏层级。 */
@media (min-width: 744px) and (max-width: 1180px) {
  .page-shell { width: min(100% - 48px, 980px); }
  .decision-card {
    min-height: clamp(430px, 52vh, 560px);
    padding-inline: 44px;
  }
  .result { font-size: clamp(3.6rem, 8.5vw, 6.2rem); }
  .panel { padding: 26px; }
  .menu-tools { grid-template-columns: 1fr; }
  .transfer-card { align-items: center; }
  .category-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* iPhone 与窄分屏：单栏、全宽按钮、避免键盘触发页面缩放。 */
@media (max-width: 743px) {
  .page-shell {
    width: min(100% - 20px, 680px);
    padding-top: max(14px, env(safe-area-inset-top));
    padding-bottom: max(24px, env(safe-area-inset-bottom));
  }
  .site-header {
    min-height: 82px;
    margin-bottom: 14px;
    padding-inline: 4px;
  }
  .header-actions { gap: 7px; }
  .portal-link { margin-bottom: 5px; font-size: 0.78rem; }
  .app-version { min-height: 30px; padding-inline: 8px; font-size: 0.72rem; }
  h1 { font-size: clamp(2.35rem, 12vw, 3.8rem); }
  .brand-subtitle { font-size: 0.9rem; }
  main { gap: 14px; }
  .decision-card {
    min-height: min(520px, calc(100svh - 132px));
    padding: 36px 18px 30px;
    border-radius: 28px;
  }
  .status-pill {
    max-width: 100%;
    margin-bottom: 26px;
    font-size: 0.75rem;
  }
  .result {
    max-width: 100%;
    font-size: clamp(2.6rem, 14vw, 4.8rem);
    letter-spacing: -0.055em;
  }
  .result-meta { margin-bottom: 22px; }
  .decision-actions {
    width: 100%;
    flex-direction: column;
  }
  .primary-button { width: min(100%, 320px); }
  .plain-button { min-width: 120px; }
  .panel { padding: 18px; border-radius: 24px; }
  .panel-heading { align-items: flex-start; }
  .panel-heading > .secondary-button { flex: 0 0 auto; }
  .menu-tools,
  .category-list { grid-template-columns: 1fr; }
  .menu-tools { margin-top: 18px; }
  .add-form { grid-template-columns: 1fr; align-items: stretch; }
  .add-form .secondary-button { width: 100%; }
  .transfer-card { display: grid; gap: 14px; }
  .transfer-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    width: 100%;
  }
  .transfer-actions .secondary-button { width: 100%; }
  .category-card { padding: 17px; }
  .item-name { font-size: 0.95rem; }
  .history-list li { gap: 12px; }
  .history-time { font-size: 0.72rem; }
}

@media (max-width: 390px) {
  .page-shell { width: calc(100% - 14px); }
  .decision-card { padding-inline: 14px; border-radius: 24px; }
  .panel { padding: 15px; border-radius: 22px; }
  .transfer-actions { grid-template-columns: 1fr; }
  .panel-heading { gap: 10px; }
  .panel-heading > .secondary-button { padding-inline: 12px; }
}

@media (orientation: landscape) and (max-height: 520px) {
  .decision-card {
    min-height: 360px;
    padding-block: 28px;
  }
  .status-pill { margin-bottom: 18px; }
  .result-meta { margin-bottom: 18px; }
}

@media (hover: none) {
  .primary-button:hover { background: var(--blue); }
  .secondary-button:hover,
  .compact-button:hover,
  .plain-button:hover,
  .remove-button:hover { background: initial; }
}

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