:root {
  color-scheme: dark;
  --bg: #0b1018;
  --panel: rgba(15, 22, 34, 0.78);
  --panel-strong: rgba(18, 27, 42, 0.92);
  --line: rgba(212, 224, 255, 0.17);
  --text: #f4f7fb;
  --muted: #aebbd0;
  --blue: #4da3ff;
  --violet: #9b7cff;
  --green: #54d39a;
  --warning: #ffd166;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.36);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: "Segoe UI", "Yu Gothic UI", "Meiryo", sans-serif;
  background:
    linear-gradient(90deg, rgba(8, 12, 20, 0.94), rgba(8, 12, 20, 0.65)),
    url("./assets/office-workflow-bg.png") center / cover fixed,
    var(--bg);
}

button,
input,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.app-shell {
  display: grid;
  grid-template-columns: 224px minmax(0, 1fr) 300px;
  gap: 18px;
  min-height: 100vh;
  padding: 18px;
}

.sidebar,
.workspace,
.assistant-panel {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.sidebar,
.assistant-panel {
  border-radius: 8px;
  padding: 18px;
}

.workspace {
  border-radius: 8px;
  padding: 22px;
  overflow: hidden;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--blue), var(--violet));
  font-weight: 800;
}

.brand strong,
.brand small {
  display: block;
}

.brand small,
.eyebrow,
.meta,
.step-count {
  color: var(--muted);
}

.side-nav {
  display: grid;
  gap: 8px;
  margin-top: 18px;
}

.language-switch {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  margin-top: 14px;
}

.language-button {
  min-height: 36px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--muted);
  font-weight: 700;
}

.language-button.active,
.language-button:hover {
  color: var(--text);
  border-color: rgba(84, 211, 154, 0.72);
  background: rgba(84, 211, 154, 0.14);
}

.nav-item {
  min-height: 42px;
  border: 1px solid transparent;
  border-radius: 8px;
  color: var(--muted);
  background: transparent;
  text-align: left;
  padding: 0 12px;
}

.nav-item.active,
.nav-item:hover {
  color: var(--text);
  border-color: rgba(77, 163, 255, 0.45);
  background: rgba(77, 163, 255, 0.12);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 22px;
}

.topbar h1 {
  margin: 4px 0 0;
  font-size: clamp(28px, 4vw, 46px);
  line-height: 1.1;
  letter-spacing: 0;
}

.create-progress {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 18px;
}

.create-progress[hidden] {
  display: none;
}

.step-item {
  min-height: 54px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--muted);
  text-align: left;
  padding: 8px 10px;
  line-height: 1.3;
}

.step-item span {
  display: inline-grid;
  width: 24px;
  height: 24px;
  margin-right: 6px;
  place-items: center;
  border-radius: 999px;
  background: rgba(77, 163, 255, 0.18);
  color: var(--text);
  font-weight: 800;
}

.step-item.active,
.step-item:hover {
  color: var(--text);
  border-color: rgba(84, 211, 154, 0.72);
  background: rgba(84, 211, 154, 0.14);
}

.eyebrow {
  margin: 0;
  font-size: 13px;
  font-weight: 700;
}

.screen {
  display: none;
}

.screen.active,
.blueprint-panel.active {
  display: block;
}

.intro-panel,
.question-card,
.proposal-card,
.folder-panel,
.agent-card,
.settings-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-strong);
}

.intro-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
  align-items: center;
  padding: 20px;
  margin-bottom: 18px;
}

.intro-panel h2,
.question-card h2,
.proposal-card h2,
.agent-card h2,
.settings-panel h2 {
  margin: 0 0 10px;
  font-size: 22px;
  letter-spacing: 0;
}

.intro-panel p,
.proposal-card p,
.section-heading p,
.agent-card p,
.assistant-panel p {
  color: var(--muted);
  line-height: 1.7;
}

.section-heading {
  margin: 22px 0 14px;
}

.section-heading h2 {
  margin: 4px 0 8px;
  font-size: 22px;
}

.section-heading p {
  margin: 0;
}

.create-hearing {
  margin-top: 24px;
}

.mini-flow,
.agent-flow {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.mini-flow span,
.agent-flow span,
.tag,
.pill {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
  padding: 8px 10px;
  color: var(--text);
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.category-card {
  min-height: 188px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(12, 19, 30, 0.86);
  color: var(--text);
  padding: 16px;
  text-align: left;
  transition: transform 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}

.category-card:hover,
.category-card.active {
  transform: translateY(-2px);
  border-color: rgba(84, 211, 154, 0.72);
  background: rgba(18, 35, 43, 0.92);
}

.category-card h3 {
  margin: 0 0 8px;
  font-size: 19px;
}

.category-card p {
  min-height: 48px;
  margin: 0 0 12px;
  color: var(--muted);
  line-height: 1.55;
}

.card-stats {
  display: grid;
  gap: 6px;
  font-size: 14px;
}

.primary,
.secondary,
.primary-action {
  min-height: 44px;
  border-radius: 8px;
  border: 1px solid transparent;
  padding: 0 16px;
  color: var(--text);
  font-weight: 700;
}

.primary,
.primary-action {
  background: linear-gradient(135deg, #1578d4, #6f58df);
}

.secondary {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.07);
}

.full {
  width: 100%;
}

.step-layout {
  display: grid;
  gap: 14px;
}

.question-card,
.proposal-card,
.folder-panel,
.agent-card,
.settings-panel {
  padding: 18px;
}

.compact-card {
  margin-bottom: 16px;
}

.form-grid {
  display: grid;
  gap: 12px;
}

.form-grid.two-column {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.form-grid label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  line-height: 1.5;
}

.form-grid input,
.form-grid textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.32);
  color: var(--text);
  padding: 11px 12px;
  resize: vertical;
}

.node-editor-list {
  display: grid;
  gap: 12px;
}

.node-editor-row {
  display: grid;
  grid-template-columns: minmax(160px, 0.8fr) minmax(220px, 1.2fr);
  gap: 10px;
}

.node-editor-row input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.32);
  color: var(--text);
  padding: 11px 12px;
}

.choice-list,
.pill-row {
  display: grid;
  gap: 10px;
}

.choice {
  min-height: 48px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  text-align: left;
  padding: 0 14px;
}

.choice.active,
.pill.active,
.export-card.active {
  border-color: rgba(84, 211, 154, 0.8);
  background: rgba(84, 211, 154, 0.14);
}

.pill-row {
  display: flex;
}

.wrap {
  flex-wrap: wrap;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.proposal-grid,
.export-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.auth-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.usage-visual-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.usage-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-strong);
  padding: 18px;
}

.usage-card h3 {
  margin: 14px 0 8px;
}

.usage-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.usage-illustration {
  display: flex;
  min-height: 100px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.22);
  color: var(--text);
}

.paper-icon,
.form-view span,
.split-view span {
  border: 1px solid rgba(77, 163, 255, 0.42);
  border-radius: 8px;
  background: rgba(77, 163, 255, 0.12);
  padding: 10px;
  font-weight: 800;
}

.browser-view {
  position: relative;
  flex-direction: column;
}

.browser-bar {
  width: 70%;
  height: 14px;
  border-radius: 999px;
  background: rgba(84, 211, 154, 0.3);
}

.form-view {
  flex-direction: column;
  align-items: stretch;
  padding: 14px;
}

.proposal-card.recommended {
  border-color: rgba(84, 211, 154, 0.7);
}

.proposal-card.active {
  border-color: rgba(77, 163, 255, 0.82);
  background: rgba(20, 38, 58, 0.94);
}

.agent-proposal-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-strong);
  color: var(--text);
  padding: 18px;
  text-align: left;
}

.agent-proposal-card.active,
.agent-proposal-card:hover {
  border-color: rgba(84, 211, 154, 0.72);
  background: rgba(20, 38, 58, 0.94);
}

.tag {
  display: inline-flex;
  margin-bottom: 12px;
  color: var(--green);
  font-weight: 800;
}

.score-list {
  display: grid;
  gap: 8px;
  margin: 14px 0;
}

.score-list div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 8px;
}

.score-list dt {
  color: var(--muted);
}

.score-list dd {
  margin: 0;
  color: var(--warning);
  white-space: nowrap;
}

.node-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 16px;
}

.node-canvas {
  display: grid;
  grid-template-columns: repeat(4, minmax(150px, 1fr));
  gap: 18px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(4, 8, 13, 0.42);
}

.node {
  position: relative;
  min-height: 118px;
  border: 1px solid rgba(77, 163, 255, 0.42);
  border-radius: 8px;
  background: rgba(18, 29, 45, 0.94);
  padding: 14px;
  font-weight: 800;
}

.node span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
  line-height: 1.45;
}

.node.start,
.node.end {
  border-color: rgba(84, 211, 154, 0.72);
}

.tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.tab {
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--muted);
  padding: 0 14px;
}

.tab.active {
  color: var(--text);
  border-color: rgba(77, 163, 255, 0.7);
  background: rgba(77, 163, 255, 0.14);
}

.blueprint-panel {
  display: none;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.info-grid article,
.saved-list article,
.export-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-strong);
  padding: 16px;
}

.saved-list article {
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease, transform 0.15s ease;
}

.saved-list article:hover,
.saved-list article.active {
  transform: translateY(-2px);
  border-color: rgba(77, 163, 255, 0.72);
  background: rgba(20, 38, 58, 0.94);
}

.info-grid h3 {
  margin: 0 0 8px;
}

.info-grid p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.code-block {
  overflow: auto;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.42);
  padding: 16px;
  color: #dce8ff;
  line-height: 1.6;
}

.export-card {
  min-height: 100px;
  color: var(--text);
  text-align: left;
}

.export-card strong,
.export-card span,
.saved-list strong,
.saved-list span {
  display: block;
}

.export-card span,
.saved-list span {
  margin-top: 8px;
  color: var(--muted);
}

.folder-panel {
  margin-top: 14px;
}

.folder-panel h2 {
  margin-top: 0;
}

.policy-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-strong);
  padding: 20px;
  line-height: 1.8;
}

.policy-panel h1,
.policy-panel h2 {
  margin-top: 0;
}

.policy-panel h2 {
  margin-top: 24px;
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.policy-panel li {
  margin: 6px 0;
  color: var(--muted);
}

.save-options {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 14px;
}

.save-options label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
}

.plan-panel {
  margin: 16px 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.05);
  padding: 14px;
}

.plan-panel h3 {
  margin: 0 0 10px;
}

.plan-panel p {
  color: var(--muted);
  line-height: 1.7;
}

.ad-overlay {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: grid;
  place-items: center;
  background: rgba(0, 0, 0, 0.72);
  padding: 18px;
}

.ad-overlay[hidden] {
  display: none;
}

.ad-box {
  width: min(520px, 100%);
  border: 1px solid rgba(84, 211, 154, 0.5);
  border-radius: 12px;
  background: #111827;
  box-shadow: var(--shadow);
  padding: 22px;
}

.ad-box p {
  color: var(--muted);
  line-height: 1.7;
}

.ad-visual {
  display: grid;
  min-height: 120px;
  margin: 16px 0;
  place-items: center;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(77, 163, 255, 0.22), rgba(84, 211, 154, 0.2));
  color: var(--text);
  font-size: 24px;
  font-weight: 900;
}

.saved-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.agent-flow {
  margin: 18px 0;
}

#nodes .agent-card {
  margin-top: 18px;
}

.settings-panel {
  max-width: 620px;
}

.settings-panel label {
  display: grid;
  gap: 8px;
  margin: 14px 0;
  color: var(--muted);
}

.settings-panel input {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.32);
  color: var(--text);
  padding: 0 12px;
}

.assistant-panel {
  align-self: start;
  position: sticky;
  top: 18px;
}

.assistant-panel h2,
.assistant-panel h3 {
  margin-bottom: 6px;
}

.notice {
  margin-top: 16px;
  border: 1px solid rgba(255, 209, 102, 0.6);
  border-radius: 8px;
  background: rgba(255, 209, 102, 0.12);
  color: #ffe3a3;
  padding: 12px;
  line-height: 1.65;
}

.status-message {
  min-height: 24px;
  margin: 12px 0 0;
  color: var(--green);
  font-weight: 700;
  line-height: 1.6;
}

@media (max-width: 1180px) {
  .app-shell {
    grid-template-columns: 190px minmax(0, 1fr);
  }

  .assistant-panel {
    grid-column: 1 / -1;
    position: static;
  }

  .category-grid,
  .proposal-grid,
  .export-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .create-progress {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .app-shell {
    grid-template-columns: 1fr;
    padding: 10px;
  }

  .sidebar,
  .workspace,
  .assistant-panel {
    padding: 14px;
  }

  .side-nav {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .nav-item {
    text-align: center;
    padding: 0 8px;
  }

  .topbar,
  .intro-panel {
    align-items: stretch;
    flex-direction: column;
    display: flex;
  }

  .primary-action {
    width: 100%;
  }

  .category-grid,
  .proposal-grid,
  .export-grid,
  .auth-grid,
  .usage-visual-grid,
  .info-grid,
  .saved-list,
  .node-canvas,
  .node-editor-row,
  .form-grid.two-column,
  .create-progress {
    grid-template-columns: 1fr;
  }
}