:root {
  color-scheme: dark;
  --canvas: #010102;
  --surface-1: #0f1011;
  --surface-2: #141516;
  --surface-3: #18191a;
  --sidebar-bg: #070708;
  --topbar-bg: rgba(1, 1, 2, 0.92);
  --hairline: #23252a;
  --hairline-strong: #34343a;
  --ink: #f7f8f8;
  --ink-muted: #d0d6e0;
  --ink-subtle: #8a8f98;
  --ink-tertiary: #62666d;
  --primary: #5e6ad2;
  --primary-hover: #828fff;
  --success: #27a644;
  --warning: #e0a11b;
  --danger: #f97066;
  --info: #64a8ff;
  --button-ink: #ffffff;
  --available-border: rgba(39, 166, 68, 0.45);
  --available-ink: #74d486;
  --available-bg: rgba(39, 166, 68, 0.12);
  --planned-border: rgba(224, 161, 27, 0.42);
  --planned-ink: #f0c56a;
  --planned-bg: rgba(224, 161, 27, 0.12);
  --agent-hover-bg: #171823;
  --score-border: rgba(224, 161, 27, 0.45);
  --score-ink: #ffd58a;
  --score-bg: rgba(224, 161, 27, 0.11);
  --rewrite-ink: #9cc9ff;
  --toast-shadow: 0 18px 44px rgba(0, 0, 0, 0.36);
  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 8px;
  --sidebar-width: 240px;
}

:root[data-theme="light"] {
  color-scheme: light;
  --canvas: #f6f7f9;
  --surface-1: #ffffff;
  --surface-2: #f1f3f6;
  --surface-3: #e8ebf0;
  --sidebar-bg: #ffffff;
  --topbar-bg: rgba(246, 247, 249, 0.92);
  --hairline: #d9dee8;
  --hairline-strong: #b9c1cf;
  --ink: #111827;
  --ink-muted: #334155;
  --ink-subtle: #667085;
  --ink-tertiary: #7b8494;
  --primary: #5e6ad2;
  --primary-hover: #4f5bbd;
  --success: #067647;
  --warning: #b54708;
  --danger: #b42318;
  --info: #175cd3;
  --button-ink: #ffffff;
  --available-border: rgba(6, 118, 71, 0.28);
  --available-ink: #067647;
  --available-bg: #ecfdf3;
  --planned-border: rgba(181, 71, 8, 0.24);
  --planned-ink: #b54708;
  --planned-bg: #fff7ed;
  --agent-hover-bg: #eef1ff;
  --score-border: rgba(181, 71, 8, 0.28);
  --score-ink: #b54708;
  --score-bg: #fff7ed;
  --rewrite-ink: #175cd3;
  --toast-shadow: 0 18px 44px rgba(15, 23, 42, 0.16);
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  min-height: 100%;
  background: var(--canvas);
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--canvas);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", "Microsoft YaHei", sans-serif;
  letter-spacing: 0;
}

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

h1,
h2,
h3,
h4,
p {
  margin: 0;
}

button,
input {
  font: inherit;
  letter-spacing: 0;
}

button {
  min-height: 40px;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  padding: 0 14px;
  color: var(--button-ink);
  background: var(--primary);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}

button:hover {
  background: var(--primary-hover);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.52;
}

button.secondary {
  border-color: var(--hairline);
  color: var(--ink-muted);
  background: var(--surface-2);
}

button.secondary:hover {
  border-color: var(--hairline-strong);
  color: var(--ink);
  background: var(--surface-3);
}

button:focus-visible,
a:focus-visible,
input:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.app-shell {
  display: grid;
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 0;
  align-self: start;
  height: 100vh;
  padding: 18px 14px;
  border-right: 1px solid var(--hairline);
  background: var(--sidebar-bg);
}

.brand,
.auth-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand {
  min-height: 44px;
  padding: 6px 8px;
  border-radius: var(--radius-md);
}

.brand:hover {
  background: var(--surface-1);
}

.brand-mark {
  display: grid;
  flex: 0 0 34px;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius-md);
  color: var(--ink);
  background: var(--surface-2);
  font-size: 15px;
  font-weight: 760;
}

.brand strong {
  display: block;
  color: var(--ink);
  font-size: 14px;
  line-height: 1.25;
}

.brand small {
  display: block;
  margin-top: 2px;
  color: var(--ink-subtle);
  font-size: 12px;
  line-height: 1.25;
}

.side-nav {
  display: grid;
  gap: 4px;
  margin-top: 28px;
}

.side-nav a,
.side-nav button {
  display: flex;
  align-items: center;
  width: 100%;
  min-height: 36px;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  padding: 0 10px;
  color: var(--ink-subtle);
  background: transparent;
  font-size: 14px;
  font-weight: 520;
  text-align: left;
}

.side-nav a:hover,
.side-nav button:hover,
.side-nav a.is-active {
  color: var(--ink);
  background: var(--surface-1);
}

.side-nav a.is-active {
  border-color: var(--hairline);
}

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

.topbar {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 84px;
  padding: 18px clamp(18px, 4vw, 40px);
  border-bottom: 1px solid var(--hairline);
  background: var(--topbar-bg);
  backdrop-filter: blur(16px);
}

.eyebrow {
  margin-bottom: 7px;
  color: var(--ink-tertiary);
  font-size: 12px;
  font-weight: 600;
  line-height: 1.3;
  text-transform: uppercase;
}

h1 {
  color: var(--ink);
  font-size: 22px;
  font-weight: 650;
  line-height: 1.22;
}

h2 {
  color: var(--ink);
  font-size: 18px;
  font-weight: 650;
  line-height: 1.3;
}

.user-area,
.result-header,
.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.user-area {
  color: var(--ink-subtle);
  font-size: 14px;
  white-space: nowrap;
}

.workspace {
  width: min(1280px, 100%);
  margin: 0 auto;
  padding: 24px clamp(18px, 4vw, 40px) 40px;
}

.dashboard-layout {
  display: grid;
  gap: 22px;
}

.review-layout {
  display: grid;
  grid-template-columns: minmax(280px, 390px) minmax(0, 1fr);
  align-items: start;
  gap: 20px;
}

.intro-panel,
.agent-section,
.tool-panel,
.auth-panel {
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  background: var(--surface-1);
}

.intro-panel {
  padding: 24px;
}

.intro-panel.compact {
  padding-bottom: 22px;
}

.intro-panel h2 {
  max-width: 760px;
  font-size: 26px;
  line-height: 1.22;
}

.intro-panel p:last-child {
  max-width: 720px;
  margin-top: 10px;
  color: var(--ink-subtle);
  font-size: 15px;
  line-height: 1.7;
}

.agent-section {
  padding: 20px;
}

.section-heading {
  margin-bottom: 16px;
}

.metric-pill,
.agent-status,
.agent-audience {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-sm);
  padding: 0 8px;
  color: var(--ink-subtle);
  background: var(--surface-2);
  font-size: 12px;
  font-weight: 620;
  white-space: nowrap;
}

.agent-card .agent-status,
.tool-heading .agent-status {
  width: fit-content;
  border-color: var(--available-border);
  color: var(--available-ink);
  background: var(--available-bg);
}

.agent-card.is-planned .agent-status {
  border-color: var(--planned-border);
  color: var(--planned-ink);
  background: var(--planned-bg);
}

.agent-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 12px;
}

.training-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin-top: 20px;
}

.training-card {
  display: grid;
  gap: 14px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  padding: 18px;
  color: var(--ink);
  background: var(--surface-2);
  text-align: left;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.training-card:hover,
.training-card.is-active {
  border-color: var(--primary);
  background: var(--surface-1);
}

.training-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
}

.training-detail {
  display: grid;
  gap: 20px;
  margin-top: 24px;
}

.training-panel.overview-panel,
.training-panel.module-panel,
.tool-panel {
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  background: var(--surface-1);
  padding: 24px;
}

.training-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.training-status,
.training-score {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  border-radius: var(--radius-sm);
  padding: 0 10px;
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
}

.training-status.is-completed {
  color: var(--available-ink);
  background: var(--available-bg);
  border: 1px solid var(--available-border);
}

.training-status.is-progress {
  color: var(--info);
  background: rgba(100, 168, 255, 0.14);
  border: 1px solid rgba(100, 168, 255, 0.28);
}

.training-status.is-not-started {
  color: var(--ink-muted);
  background: var(--surface-2);
  border: 1px solid var(--hairline);
}

.training-score {
  color: var(--ink);
  background: rgba(94, 106, 210, 0.08);
  border: 1px solid rgba(94, 106, 210, 0.18);
}

.training-lessons,
.quiz-items {
  display: grid;
  gap: 16px;
  margin-top: 18px;
}

.lesson-item,
.quiz-item {
  padding: 16px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
}

.quiz-question {
  margin: 0 0 12px;
  color: var(--ink);
  font-weight: 600;
}

.quiz-options {
  display: grid;
  gap: 10px;
}

.quiz-option {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-sm);
  background: var(--surface-1);
  cursor: pointer;
}

.quiz-option input {
  accent-color: var(--primary);
}

.training-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.training-detail .message {
  margin-top: 14px;
}

.agent-card {
  display: grid;
  min-height: 184px;
  align-content: start;
  gap: 12px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  padding: 16px;
  color: var(--ink);
  background: var(--surface-2);
  text-align: left;
}

button.agent-card {
  min-height: 184px;
}

button.agent-card:hover {
  border-color: var(--primary);
  background: var(--agent-hover-bg);
}

.agent-card strong {
  color: var(--ink);
  font-size: 17px;
  line-height: 1.35;
}

.agent-card p {
  color: var(--ink-subtle);
  font-size: 14px;
  line-height: 1.65;
}

.agent-audience {
  margin-top: auto;
  justify-self: start;
}

.tool-panel {
  padding: 20px;
}

.tool-heading {
  display: grid;
  gap: 10px;
}

.tool-heading p,
.tool-notes,
.message {
  color: var(--ink-subtle);
  font-size: 14px;
  line-height: 1.65;
}

.form {
  display: grid;
  gap: 16px;
  margin-top: 22px;
}

label {
  display: grid;
  gap: 8px;
  color: var(--ink-muted);
  font-size: 14px;
  font-weight: 540;
}

input {
  width: 100%;
  min-height: 42px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  padding: 9px 11px;
  color: var(--ink);
  background: var(--surface-2);
}

input:hover {
  border-color: var(--hairline-strong);
}

input[type="file"] {
  padding: 8px;
  color: var(--ink-subtle);
}

input::file-selector-button {
  min-height: 30px;
  margin-right: 10px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-sm);
  color: var(--ink);
  background: var(--surface-3);
  font: inherit;
  font-size: 13px;
  cursor: pointer;
}

.message {
  min-height: 22px;
}

.message.error {
  color: var(--danger);
}

.tool-notes {
  display: grid;
  gap: 8px;
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--hairline);
}

.result-panel {
  min-width: 0;
}

.review-result {
  min-height: 560px;
  margin-top: 18px;
  color: var(--ink-muted);
  font-size: 15px;
  line-height: 1.7;
}

.review-paragraph {
  margin: 0 0 14px;
  color: var(--ink-muted);
  white-space: pre-wrap;
  word-break: break-word;
}

.review-section-title {
  margin: 26px 0 12px;
  border-left: 3px solid var(--primary);
  padding: 8px 0 8px 12px;
  color: var(--ink);
  font-size: 18px;
  line-height: 1.35;
  font-weight: 680;
}

.review-section-title:first-child {
  margin-top: 0;
}

.review-section-title.section-score {
  border-left-color: var(--warning);
}

.review-section-title.section-issues {
  border-left-color: var(--danger);
}

.review-section-title.section-advice {
  border-left-color: var(--success);
}

.review-section-title.section-rewrite {
  border-left-color: var(--info);
}

.review-paragraph.section-score {
  display: inline-flex;
  align-items: center;
  min-height: 52px;
  margin-bottom: 14px;
  border: 1px solid var(--score-border);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  color: var(--score-ink);
  background: var(--score-bg);
  font-size: 28px;
  line-height: 1.2;
  font-weight: 760;
}

.review-paragraph.is-conclusion {
  margin-bottom: 18px;
  border: 1px solid var(--hairline);
  border-left: 3px solid var(--warning);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  color: var(--ink);
  background: var(--surface-2);
  font-weight: 620;
}

.review-subsection-title {
  margin: 18px 0 9px;
  color: var(--ink);
  font-size: 15px;
  line-height: 1.45;
  font-weight: 660;
}

.review-paragraph.section-rewrite {
  margin-bottom: 10px;
  color: var(--ink-subtle);
}

.review-result table {
  width: 100%;
  margin: 10px 0 20px;
  border-collapse: separate;
  border-spacing: 0;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  overflow: hidden;
  table-layout: fixed;
  background: var(--surface-1);
}

.review-result th,
.review-result td {
  border: 0;
  border-right: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  padding: 12px 13px;
  text-align: left;
  vertical-align: top;
  word-break: break-word;
}

.review-result tr:last-child td {
  border-bottom: 0;
}

.review-result th:last-child,
.review-result td:last-child {
  border-right: 0;
}

.review-result th {
  color: var(--ink);
  background: var(--surface-3);
  font-size: 13px;
  font-weight: 680;
}

.review-result td {
  color: var(--ink-muted);
  font-size: 14px;
  line-height: 1.6;
}

.review-table.section-score-detail td:nth-child(2) {
  color: var(--score-ink);
  font-size: 17px;
  font-weight: 760;
}

.review-table.section-issues td:first-child {
  color: var(--danger);
  font-weight: 700;
}

.review-table.section-advice td:nth-child(2),
.review-table.section-advice td:nth-child(3) {
  color: var(--available-ink);
}

.review-table.section-rewrite td:first-child {
  color: var(--rewrite-ink);
  font-weight: 700;
}

.auth-page {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 24px;
}

.auth-shell {
  width: min(460px, 100%);
}

.auth-panel {
  position: relative;
  padding: 30px;
}

.auth-brand {
  align-items: flex-start;
  padding-right: 70px;
}

.auth-brand .brand-mark {
  margin-top: 2px;
}

.auth-copy {
  margin-top: 16px;
  color: var(--ink-subtle);
  font-size: 14px;
  line-height: 1.7;
}

.auth-toggle {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  margin-top: 22px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  padding: 4px;
  background: var(--surface-2);
}

.auth-toggle button {
  min-height: 34px;
  border: 1px solid transparent;
  color: var(--ink-subtle);
  background: transparent;
  font-size: 14px;
}

.auth-toggle button:hover,
.auth-toggle button.is-active {
  color: var(--ink);
  background: var(--surface-3);
}

.auth-toggle button.is-active {
  border-color: var(--hairline-strong);
}

.theme-toggle {
  position: absolute;
  top: 18px;
  right: 18px;
  min-height: 32px;
  border: 1px solid var(--hairline);
  padding: 0 10px;
  color: var(--ink-muted);
  background: var(--surface-2);
  font-size: 13px;
}

.theme-toggle:hover {
  border-color: var(--hairline-strong);
  color: var(--ink);
  background: var(--surface-3);
}

.toast {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 20;
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  color: var(--ink);
  background: var(--surface-2);
  box-shadow: var(--toast-shadow);
  font-size: 14px;
}

@media (max-width: 1180px) {
  .review-layout {
    grid-template-columns: 1fr;
  }

  .review-result {
    min-height: 420px;
  }
}

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

  .sidebar {
    position: static;
    height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--hairline);
  }

  .side-nav {
    grid-template-columns: repeat(5, minmax(92px, 1fr));
    gap: 6px;
    margin-top: 14px;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .side-nav a,
  .side-nav button {
    justify-content: center;
    white-space: nowrap;
  }

  .topbar {
    position: static;
    align-items: flex-start;
    flex-direction: column;
  }

  .user-area {
    width: 100%;
    justify-content: space-between;
  }

  .workspace {
    padding: 18px;
  }

  .intro-panel,
  .agent-section,
  .tool-panel,
  .auth-panel {
    padding: 18px;
  }

  .intro-panel h2 {
    font-size: 22px;
  }

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

  .review-result table {
    min-width: 680px;
  }

  .review-result {
    overflow-x: auto;
  }
}