:root {
  --bg: #eef4fb;
  --bg-soft: #f8fbff;
  --panel: rgba(255, 255, 255, 0.76);
  --panel-strong: rgba(255, 255, 255, 0.92);
  --card: rgba(255, 255, 255, 0.94);
  --card-soft: rgba(244, 248, 255, 0.92);
  --text: #15243a;
  --muted: #5f6f86;
  --line: rgba(21, 36, 58, 0.1);
  --line-strong: rgba(21, 36, 58, 0.16);
  --shadow: 0 30px 80px rgba(28, 48, 84, 0.14);
  --shadow-soft: 0 22px 50px rgba(28, 48, 84, 0.09);
  --accent: #2563eb;
  --accent-strong: #1d4ed8;
  --accent-soft: rgba(37, 99, 235, 0.12);
  --accent-ring: rgba(37, 99, 235, 0.18);
  --warm: #f59e0b;
  --danger: #d14343;
  --danger-soft: rgba(209, 67, 67, 0.1);
  --radius-2xl: 36px;
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 18px;
  --radius-sm: 14px;
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: light;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: "Noto Sans TC", sans-serif;
  background:
    radial-gradient(circle at 10% 12%, rgba(37, 99, 235, 0.16), transparent 24rem),
    radial-gradient(circle at 88% 6%, rgba(14, 165, 233, 0.12), transparent 18rem),
    radial-gradient(circle at 78% 82%, rgba(245, 158, 11, 0.12), transparent 20rem),
    linear-gradient(180deg, var(--bg-soft) 0%, var(--bg) 50%, #edf2f9 100%);
}

body.page-home,
body.page-editor {
  position: relative;
  overflow-x: hidden;
}

body.page-home::before,
body.page-editor::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(21, 36, 58, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(21, 36, 58, 0.03) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.72), transparent 92%);
}

body.page-home::after,
body.page-editor::after {
  content: "";
  position: fixed;
  width: min(72vw, 720px);
  aspect-ratio: 1;
  right: -18vw;
  top: -24vh;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.78), rgba(255, 255, 255, 0));
  filter: blur(20px);
  pointer-events: none;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.shell {
  width: min(1120px, calc(100% - 36px));
  margin: 0 auto;
  padding: 34px 0 72px;
}

.home-shell {
  width: min(860px, calc(100% - 32px));
  min-height: 100vh;
  display: grid;
  align-items: center;
  padding: 36px 0 52px;
}

.editor-shell {
  padding-top: 26px;
}

.tool-stage,
.panel,
.status-banner {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.tool-stage::before,
.panel::before,
.status-banner::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  background:
    linear-gradient(140deg, rgba(255, 255, 255, 0.74), rgba(255, 255, 255, 0.1) 26%, transparent 48%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.18), transparent 28%);
  pointer-events: none;
}

.tool-stage::after,
.panel::after,
.status-banner::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  width: 220px;
  height: 220px;
  right: -96px;
  top: -120px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.16), rgba(37, 99, 235, 0));
  pointer-events: none;
}

.tool-stage {
  border-radius: 40px;
  padding: clamp(22px, 4vw, 34px);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.88), rgba(244, 249, 255, 0.76)),
    rgba(255, 255, 255, 0.8);
  animation: surface-enter 560ms cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

.tool-stage .tool-grid,
.tool-stage .tool-empty {
  position: relative;
  z-index: 1;
}

.tool-grid,
.panel-stack,
.preview-links,
.links-editor-list,
.preview-card {
  display: grid;
  gap: 14px;
}

.tool-link {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 16px;
  min-height: 92px;
  padding: 22px 22px 22px 26px;
  border-radius: 24px;
  border: 1px solid rgba(21, 36, 58, 0.08);
  background:
    linear-gradient(180deg, var(--card) 0%, var(--card-soft) 100%);
  box-shadow:
    0 18px 38px rgba(28, 48, 84, 0.11),
    inset 0 1px 0 rgba(255, 255, 255, 0.82);
  transform: translateY(18px);
  opacity: 0;
  animation: card-enter 560ms cubic-bezier(0.18, 0.88, 0.24, 1) forwards;
  animation-delay: calc(var(--link-index, 0) * 65ms);
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    border-color 180ms ease,
    background 180ms ease;
}

.tool-link::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background:
    radial-gradient(circle at 12% 50%, rgba(37, 99, 235, 0.14), transparent 34%),
    linear-gradient(120deg, rgba(255, 255, 255, 0.12), transparent 46%);
  opacity: 0;
  transition: opacity 180ms ease;
}

.tool-link__accent {
  position: absolute;
  left: 18px;
  top: 18px;
  bottom: 18px;
  width: 5px;
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(37, 99, 235, 0.95), rgba(125, 168, 255, 0.3));
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.72);
}

.tool-link__content {
  position: relative;
  z-index: 1;
  min-width: 0;
  padding-left: 14px;
}

.tool-link-name,
.mini-link-name {
  display: block;
  margin: 0;
  font-family: "Space Grotesk", "Noto Sans TC", sans-serif;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.tool-link-name {
  font-size: clamp(1.12rem, 2.8vw, 1.42rem);
}

.tool-link__marker,
.mini-link__marker {
  position: relative;
  z-index: 1;
  width: 44px;
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1px solid rgba(37, 99, 235, 0.16);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(233, 242, 255, 0.92));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.9),
    0 10px 20px rgba(37, 99, 235, 0.08);
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    border-color 180ms ease;
}

.tool-link__marker::before,
.mini-link__marker::before {
  content: "";
  position: absolute;
  inset: 11px;
  border-radius: 50%;
  background: linear-gradient(180deg, #2d6df0 0%, #6aa7ff 100%);
  box-shadow: 0 8px 16px rgba(37, 99, 235, 0.24);
}

.tool-link:hover {
  transform: translateY(-4px);
  border-color: rgba(37, 99, 235, 0.16);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(238, 245, 255, 0.94));
  box-shadow:
    0 24px 46px rgba(28, 48, 84, 0.14),
    0 0 0 1px rgba(37, 99, 235, 0.04),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.tool-link:hover::before,
.tool-link:focus-visible::before {
  opacity: 1;
}

.tool-link:hover .tool-link__marker,
.tool-link:focus-visible .tool-link__marker {
  transform: scale(1.04);
  border-color: rgba(37, 99, 235, 0.28);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.9),
    0 12px 26px rgba(37, 99, 235, 0.14);
}

.tool-link:focus-visible {
  outline: none;
  transform: translateY(-3px);
  border-color: rgba(37, 99, 235, 0.3);
  box-shadow:
    0 0 0 4px var(--accent-ring),
    0 24px 46px rgba(28, 48, 84, 0.16);
}

.tool-empty,
.empty-state {
  margin: 0;
  padding: 22px 20px;
  border-radius: var(--radius-lg);
  border: 1px dashed rgba(21, 36, 58, 0.18);
  background: rgba(255, 255, 255, 0.6);
  color: var(--muted);
  text-align: center;
}

.panel,
.status-banner {
  border-radius: var(--radius-2xl);
  padding: 22px;
}

.section-kicker,
.banner-pills span,
.editor-link-card__index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.section-kicker {
  width: fit-content;
  padding: 8px 12px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  text-transform: uppercase;
}

.panel-head,
.actions-row,
.split-actions,
.status-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.panel-head {
  align-items: flex-start;
  margin-bottom: 18px;
}

.panel-head__body {
  display: grid;
  gap: 10px;
}

.panel-head h2 {
  margin: 0;
  font-family: "Space Grotesk", "Noto Sans TC", sans-serif;
  font-size: clamp(1.28rem, 2.3vw, 1.72rem);
  font-weight: 700;
  letter-spacing: 0.01em;
}

.section-note,
.banner-title {
  margin: 0;
  color: var(--muted);
  font-size: 0.94rem;
  font-weight: 700;
}

.banner-main {
  min-width: 0;
}

.banner-copy {
  margin: 6px 0 0;
  max-width: 60ch;
  color: var(--muted);
  line-height: 1.75;
}

.banner-pills {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
}

.banner-pills span {
  min-height: 34px;
  padding: 0 12px;
  background: rgba(21, 36, 58, 0.05);
  color: var(--text);
}

.editor-grid {
  margin-top: 18px;
  display: grid;
  gap: 18px;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.86fr);
  align-items: start;
}

.panel-stack {
  align-content: start;
}

.preview-panel {
  position: sticky;
  top: 22px;
}

.form-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.form-grid label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 0.92rem;
}

.form-grid label span {
  font-weight: 700;
}

.wide {
  grid-column: 1 / -1;
}

input,
textarea {
  width: 100%;
  border: 1px solid rgba(21, 36, 58, 0.12);
  border-radius: 16px;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.9);
  color: var(--text);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.72);
  transition:
    border-color 160ms ease,
    box-shadow 160ms ease,
    background 160ms ease;
}

input::placeholder,
textarea::placeholder {
  color: #8a96ab;
}

input:focus,
textarea:focus {
  outline: none;
  border-color: rgba(37, 99, 235, 0.28);
  background: rgba(255, 255, 255, 0.98);
  box-shadow:
    0 0 0 4px rgba(37, 99, 235, 0.12),
    inset 0 1px 0 rgba(255, 255, 255, 0.85);
}

.actions-row {
  margin-top: 4px;
}

.micro-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.control-button {
  position: relative;
  min-height: 48px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: 16px;
  background: #fff;
  color: var(--text);
  box-shadow:
    0 14px 28px rgba(28, 48, 84, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.82);
  transition:
    transform 160ms ease,
    box-shadow 160ms ease,
    background 160ms ease,
    border-color 160ms ease,
    color 160ms ease;
}

.control-button__label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.control-button:hover {
  transform: translateY(-2px);
}

.control-button:active {
  transform: translateY(1px) scale(0.988);
}

.control-button:focus-visible {
  outline: none;
  box-shadow:
    0 0 0 4px var(--accent-ring),
    0 18px 34px rgba(28, 48, 84, 0.12);
}

.control-button-primary {
  border-color: rgba(37, 99, 235, 0.14);
  background: linear-gradient(180deg, #3773ef 0%, #2563eb 100%);
  box-shadow:
    0 18px 34px rgba(37, 99, 235, 0.24),
    inset 0 1px 0 rgba(255, 255, 255, 0.16);
}

.control-button-primary .control-button__label {
  color: #fff;
}

.control-button-primary:hover {
  box-shadow:
    0 22px 42px rgba(37, 99, 235, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.18);
}

.control-button-secondary {
  border-color: rgba(37, 99, 235, 0.16);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(236, 244, 255, 0.92));
}

.control-button-secondary .control-button__label {
  color: var(--accent-strong);
}

.control-button-secondary:hover {
  box-shadow:
    0 18px 34px rgba(28, 48, 84, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.88);
}

.control-button-ghost {
  border-color: rgba(21, 36, 58, 0.08);
  background: rgba(255, 255, 255, 0.82);
  box-shadow:
    0 10px 20px rgba(28, 48, 84, 0.04),
    inset 0 1px 0 rgba(255, 255, 255, 0.7);
}

.control-button-ghost .control-button__label {
  color: var(--text);
}

.control-button-ghost:hover {
  border-color: rgba(37, 99, 235, 0.14);
  box-shadow:
    0 16px 30px rgba(28, 48, 84, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.82);
}

.control-button-danger {
  border-color: rgba(209, 67, 67, 0.14);
  background: linear-gradient(180deg, rgba(255, 252, 252, 0.98), rgba(255, 238, 238, 0.9));
}

.control-button-danger .control-button__label {
  color: var(--danger);
}

.control-button-danger:hover {
  box-shadow:
    0 18px 34px rgba(209, 67, 67, 0.12),
    inset 0 1px 0 rgba(255, 255, 255, 0.88);
}

.control-button[disabled] {
  transform: none;
  border-color: rgba(21, 36, 58, 0.08);
  background: linear-gradient(180deg, rgba(247, 248, 250, 0.94), rgba(235, 238, 243, 0.82));
  box-shadow: none;
}

.control-button[disabled] .control-button__label {
  color: rgba(21, 36, 58, 0.38);
}

button:disabled {
  cursor: not-allowed;
}

.editor-link-card {
  display: grid;
  gap: 16px;
  padding: 18px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(21, 36, 58, 0.08);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(244, 248, 255, 0.92));
  box-shadow: var(--shadow-soft);
}

.editor-link-card__head {
  display: flex;
  justify-content: flex-end;
}

.editor-link-card__index {
  min-width: 44px;
  min-height: 32px;
  padding: 0 12px;
  background: rgba(37, 99, 235, 0.08);
  color: var(--accent-strong);
}

.preview-surface {
  display: grid;
  gap: 14px;
  padding: 16px;
  border-radius: 28px;
  border: 1px solid rgba(21, 36, 58, 0.08);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.84), rgba(240, 247, 255, 0.76));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.84);
}

.mini-link {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: 16px 18px 16px 22px;
  border-radius: 20px;
  border: 1px solid rgba(21, 36, 58, 0.08);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(240, 247, 255, 0.9));
}

.mini-link__accent {
  position: absolute;
  left: 15px;
  top: 15px;
  bottom: 15px;
  width: 4px;
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(37, 99, 235, 0.95), rgba(125, 168, 255, 0.28));
}

.mini-link-name {
  min-width: 0;
  padding-left: 12px;
  font-size: 1rem;
}

@keyframes surface-enter {
  from {
    opacity: 0;
    transform: translateY(18px) scale(0.986);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes card-enter {
  from {
    opacity: 0;
    transform: translateY(18px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .tool-stage,
  .tool-link {
    animation: none;
    opacity: 1;
    transform: none;
  }

  .tool-link,
  .tool-link__marker,
  .control-button,
  input,
  textarea {
    transition: none;
  }
}

@media (max-width: 960px) {
  .editor-grid {
    grid-template-columns: 1fr;
  }

  .preview-panel {
    position: static;
    order: -1;
  }
}

@media (max-width: 640px) {
  .shell {
    width: min(100% - 20px, 1120px);
    padding-top: 20px;
  }

  .home-shell {
    width: min(100% - 20px, 860px);
    padding-top: 24px;
  }

  .tool-stage,
  .panel,
  .status-banner {
    padding: 18px;
    border-radius: 28px;
  }

  .tool-link {
    min-height: 84px;
    padding: 18px 18px 18px 22px;
    border-radius: 22px;
  }

  .tool-link__accent {
    left: 15px;
    top: 15px;
    bottom: 15px;
  }

  .tool-link__content {
    padding-left: 10px;
  }

  .tool-link__marker,
  .mini-link__marker {
    width: 38px;
  }

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

  .wide {
    grid-column: auto;
  }

  .status-banner,
  .split-actions,
  .panel-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .banner-pills {
    justify-content: flex-start;
  }
}