:root {
  --bg: #09090b;
  --bg-soft: #111113;
  --panel: rgba(10, 10, 11, 0.86);
  --panel-strong: #09090b;
  --line: rgba(255, 255, 255, 0.1);
  --line-strong: rgba(255, 255, 255, 0.16);
  --text: #fafafa;
  --muted: #a1a1aa;
  --muted-strong: #d4d4d8;
  --primary: #fafafa;
  --primary-dark: #e4e4e7;
  --danger: #f87171;
  --warning-bg: rgba(250, 204, 21, 0.12);
  --error-bg: rgba(248, 113, 113, 0.12);
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.38);
  --radius: 16px;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
}

body {
  margin: 0;
  font-family: "Geist", "Inter", "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at top center, rgba(255, 255, 255, 0.08), transparent 0, transparent 35%),
    linear-gradient(180deg, #09090b 0%, #0f1012 56%, #09090b 100%);
  color: var(--text);
}

.site-bg {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: radial-gradient(circle at center, black 30%, transparent 85%);
  pointer-events: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
  background: rgba(9, 9, 11, 0.72);
}

.site-header-inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.header-actions {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: inherit;
  text-decoration: none;
}

.brand-mark {
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  border: 1px solid var(--line-strong);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
  font-weight: 700;
}

.brand-copy {
  display: inline-flex;
  flex-direction: column;
  gap: 1px;
}

.brand-copy strong,
.metric-card strong,
.submit-copy strong {
  font-size: 0.95rem;
}

.brand-copy small,
.submit-copy span {
  color: var(--muted);
}

.header-chip,
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 32px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  color: var(--muted-strong);
  font-size: 0.82rem;
}

.user-pill {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 0 14px;
  min-height: 36px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted-strong);
  font-size: 0.9rem;
}

.user-pill a {
  color: inherit;
  text-decoration: none;
  opacity: 0.88;
}

.badge-muted {
  color: var(--muted);
}

.page-shell {
  position: relative;
  max-width: 1240px;
  margin: 0 auto;
  padding: 40px 20px 72px;
}

.panel,
.warning-panel,
.error-panel,
.section-head-card,
.hero-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 4px);
  box-shadow: var(--shadow);
}

.hero-panel {
  overflow: hidden;
}

.auth-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  gap: 28px;
  padding: 36px;
}

.auth-card {
  align-self: start;
  padding: 24px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
}

.auth-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 20px;
}

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

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(360px, 0.9fr);
  gap: 32px;
  padding: 40px;
}

.hero-copy h1,
.section-head h1 {
  margin: 12px 0 16px;
  font-size: clamp(2.35rem, 4.5vw, 4.6rem);
  line-height: 0.98;
  letter-spacing: -0.04em;
}

.section-head h1 {
  font-size: clamp(1.8rem, 3vw, 2.8rem);
}

.hero-badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
}

.eyebrow {
  margin: 0;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
  font-size: 0.78rem;
}

.lead,
.section-meta,
.inline-note,
.upload-help {
  color: var(--muted);
  max-width: 66ch;
  line-height: 1.7;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 28px;
}

.metric-card {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.02);
}

.metric-card span {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.92rem;
}

.upload-card {
  align-self: start;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.015)),
    var(--panel-strong);
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 2px);
  padding: 22px;
}

.card-heading,
.panel-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.card-kicker {
  margin: 0 0 6px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.72rem;
}

.panel h2,
.upload-card h2,
.warning-panel h2,
.error-panel h2 {
  display: block;
  margin: 0;
  font-size: 1.08rem;
  font-weight: 600;
}

.button-block {
  width: 100%;
  justify-content: center;
}

input,
textarea,
select,
button {
  font: inherit;
}

input,
textarea,
select {
  width: 100%;
  margin-top: 8px;
  padding: 11px 13px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.02);
  color: var(--text);
  transition: border-color 120ms ease, background 120ms ease, box-shadow 120ms ease;
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: rgba(255, 255, 255, 0.22);
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.05);
  background: rgba(255, 255, 255, 0.04);
}

textarea {
  resize: vertical;
}

.upload-dropzone {
  display: grid;
  gap: 10px;
  padding: 20px;
  border: 1px dashed rgba(255, 255, 255, 0.18);
  border-radius: 16px;
  background:
    radial-gradient(circle at top right, rgba(255, 255, 255, 0.08), transparent 34%),
    rgba(255, 255, 255, 0.02);
  cursor: pointer;
}

.upload-dropzone input {
  margin-top: 2px;
  padding: 0;
  border: 0;
  background: transparent;
}

.upload-dropzone-title {
  font-weight: 600;
}

.upload-dropzone-text {
  color: var(--muted);
  font-size: 0.93rem;
}

.info-list {
  display: grid;
  gap: 10px;
  margin: 18px 0 20px;
}

.info-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 12px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.info-row:first-child {
  border-top: 0;
}

.info-row strong {
  color: var(--text);
  font-size: 0.93rem;
  font-weight: 500;
  text-align: right;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 10px;
  min-height: 40px;
  padding: 10px 16px;
  cursor: pointer;
  text-decoration: none;
  transition: transform 120ms ease, background 120ms ease, border-color 120ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  background: var(--primary);
  color: #09090b;
  border-color: rgba(255, 255, 255, 0.35);
}

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

.button-secondary {
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
}

.button-danger {
  background: rgba(248, 113, 113, 0.08);
  color: var(--danger);
  border-color: rgba(248, 113, 113, 0.16);
}

.button-block {
  width: 100%;
}

.review-shell {
  display: grid;
  gap: 18px;
}

.section-head,
.form-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.panel,
.warning-panel,
.error-panel,
.section-head-card {
  padding: 22px;
}

.warning-panel {
  background: var(--warning-bg);
  border-color: rgba(250, 204, 21, 0.16);
}

.error-panel {
  background: var(--error-bg);
  border-color: rgba(248, 113, 113, 0.16);
}

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

.form-grid label {
  display: block;
}

.form-grid span {
  font-weight: 600;
  font-size: 0.92rem;
}

.span-2 {
  grid-column: span 2;
}

.table-wrap {
  overflow-x: auto;
}

.item-table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
}

.item-table th,
.item-table td {
  padding: 12px 10px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.item-table th {
  text-align: left;
  color: var(--muted);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: rgba(255, 255, 255, 0.02);
}

.item-table td input,
.item-table td textarea,
.item-table td select {
  margin-top: 0;
  min-width: 110px;
}

.flash-stack {
  display: grid;
  gap: 10px;
  margin-bottom: 18px;
}

.flash {
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
}

.flash-error {
  background: var(--error-bg);
  border-color: rgba(248, 113, 113, 0.16);
}

.submit-copy {
  display: grid;
  gap: 4px;
}

@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
    padding: 24px;
  }

  .hero-metrics {
    grid-template-columns: 1fr;
  }

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

  .span-2 {
    grid-column: auto;
  }

  .section-head,
  .panel-header,
  .form-actions {
    align-items: flex-start;
    flex-direction: column;
  }

  .info-row {
    align-items: flex-start;
    flex-direction: column;
  }
}