:root {
  --bg: #f3efe7;
  --bg-soft: #fbf8f2;
  --surface: rgba(255, 255, 255, 0.84);
  --surface-strong: #ffffff;
  --ink: #1b2633;
  --muted: #5e6978;
  --line: rgba(27, 38, 51, 0.12);
  --brand: #102542;
  --brand-soft: #1f436f;
  --accent: #df7a3a;
  --success: #1f8f58;
  --danger: #c53a3a;
  --warning: #b0721a;
  --shadow: 0 20px 60px rgba(16, 37, 66, 0.12);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --max-width: 1400px;
  --font-display: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: var(--font-display);
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(223, 122, 58, 0.16), transparent 32%),
    radial-gradient(circle at top right, rgba(16, 37, 66, 0.12), transparent 26%),
    linear-gradient(180deg, #f8f5ef 0%, #ede5d9 100%);
}

.page-shell {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 28px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(300px, 0.8fr);
  gap: 24px;
  margin-bottom: 28px;
}

.hero__content,
.status-card,
.panel,
.footer {
  backdrop-filter: blur(18px);
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.66);
  box-shadow: var(--shadow);
}

.hero__content {
  padding: 36px;
  border-radius: 36px;
  min-height: 320px;
  position: relative;
  overflow: hidden;
}

.hero__content::after {
  content: "";
  position: absolute;
  inset: auto -12% -18% auto;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(223, 122, 58, 0.18), transparent 68%);
}

.hero__aside {
  display: flex;
}

.status-card {
  border-radius: 30px;
  padding: 30px;
  width: 100%;
}

.status-card ul {
  margin: 18px 0 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.7;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 14px;
  font-size: 13px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--brand-soft);
}

.hero h1 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.8rem);
  line-height: 1.05;
  max-width: 10em;
}

.hero__lead {
  max-width: 50rem;
  margin: 18px 0 24px;
  font-size: 1.02rem;
  line-height: 1.8;
  color: var(--muted);
}

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.hero__meta span,
.session-badge,
.status-pill {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(16, 37, 66, 0.08);
  color: var(--brand);
  font-size: 0.92rem;
}

.main-grid {
  display: grid;
  grid-template-columns: minmax(340px, 420px) minmax(0, 1fr);
  gap: 24px;
}

.panel {
  border-radius: var(--radius-lg);
  padding: 26px;
}

.panel__header {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 24px;
}

.panel__header h2,
.module-block h3,
.empty-panel h3 {
  margin: 0;
}

.mode-switch,
.module-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.mode-switch__btn,
.tab-btn,
.btn {
  appearance: none;
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  transition: 0.2s ease;
  font: inherit;
}

.mode-switch__btn,
.tab-btn {
  padding: 10px 16px;
  background: rgba(16, 37, 66, 0.08);
  color: var(--muted);
}

.mode-switch__btn.is-active,
.tab-btn.is-active {
  background: var(--brand);
  color: #fff;
}

.form-stack {
  display: grid;
  gap: 14px;
}

.field,
.field-group {
  display: grid;
  gap: 8px;
}

.field span {
  font-size: 0.92rem;
  color: var(--muted);
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font: inherit;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.92);
}

textarea {
  min-height: 110px;
  resize: vertical;
}

.btn {
  padding: 12px 18px;
}

.btn--primary {
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-soft) 100%);
  color: #fff;
}

.btn--primary:hover,
.btn--ghost:hover,
.btn--secondary:hover {
  transform: translateY(-1px);
}

.btn--ghost {
  background: rgba(16, 37, 66, 0.08);
  color: var(--brand);
}

.btn--secondary {
  background: rgba(223, 122, 58, 0.14);
  color: #8f4719;
}

.btn--danger {
  background: rgba(197, 58, 58, 0.12);
  color: var(--danger);
}

.flash {
  margin-bottom: 16px;
  border-radius: 16px;
  padding: 12px 16px;
  line-height: 1.6;
  border: 1px solid transparent;
}

.flash--success {
  background: rgba(31, 143, 88, 0.1);
  color: var(--success);
  border-color: rgba(31, 143, 88, 0.18);
}

.flash--error {
  background: rgba(197, 58, 58, 0.1);
  color: var(--danger);
  border-color: rgba(197, 58, 58, 0.18);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
  margin-bottom: 22px;
}

.stat-card {
  padding: 18px;
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.86), rgba(245, 241, 233, 0.92));
  border: 1px solid rgba(16, 37, 66, 0.07);
}

.stat-card strong {
  display: block;
  margin-top: 14px;
  font-size: 1.9rem;
}

.stat-card span {
  color: var(--muted);
}

.module-panel {
  margin-top: 18px;
}

.module-block {
  padding: 20px;
  border-radius: 22px;
  border: 1px solid rgba(16, 37, 66, 0.08);
  background: rgba(255, 255, 255, 0.78);
  margin-bottom: 16px;
}

.module-block__header {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.module-block__header p {
  margin: 6px 0 0;
  color: var(--muted);
}

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

.grid-3 {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

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

.item-card {
  padding: 16px;
  border-radius: 18px;
  background: rgba(251, 248, 242, 0.92);
  border: 1px solid rgba(16, 37, 66, 0.08);
}

.item-card h4 {
  margin: 0 0 8px;
}

.item-card p {
  margin: 6px 0;
  color: var(--muted);
  line-height: 1.6;
}

.item-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.inline-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.empty-panel,
.empty-state {
  padding: 30px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px dashed rgba(16, 37, 66, 0.16);
  color: var(--muted);
}

.auth-pane.hidden,
.hidden {
  display: none !important;
}

.footer {
  margin-top: 24px;
  padding: 18px 24px;
  border-radius: 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
  flex-wrap: wrap;
}

.footer strong {
  color: var(--ink);
  margin-right: 10px;
}

.text-danger {
  color: var(--danger);
}

.text-success {
  color: var(--success);
}

.text-warning {
  color: var(--warning);
}

@media (max-width: 1100px) {
  .hero,
  .main-grid,
  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .page-shell {
    padding: 16px;
  }

  .hero__content,
  .status-card,
  .panel {
    padding: 20px;
    border-radius: 24px;
  }

  .panel__header,
  .module-block__header,
  .footer {
    flex-direction: column;
    align-items: stretch;
  }
}