:root {
  --bg: #eef3f8;
  --text: #172033;
  --muted: #667085;
  --line: rgba(148, 163, 184, 0.28);
  --card: rgba(255, 255, 255, 0.62);
  --primary: #455a74;
  --primary-strong: #2f4058;
  --success: #19785b;
  --danger: #b54747;
  --shadow: 0 14px 38px rgba(47, 64, 88, 0.10);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(203, 213, 225, 0.68), transparent 34%),
    linear-gradient(135deg, #eef3f8 0%, #e9eef4 48%, #f7f3ee 100%);
}

a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; }

.shell {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 24px;
  width: min(1500px, calc(100% - 32px));
  min-height: 100vh;
  margin: 0 auto;
  padding: 24px 0;
}

.content { min-width: 0; }
.content-full { grid-column: 1 / -1; }
.glass-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--card);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.sidebar {
  position: sticky;
  top: 24px;
  height: calc(100vh - 48px);
  padding: 22px;
  display: flex;
  flex-direction: column;
}
.brand, .login-title {
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  color: #fff;
  background: var(--primary);
  font-weight: 800;
}
.brand strong { display: block; }
.brand small, .subtle, .hint { color: var(--muted); }
.nav { display: grid; gap: 8px; margin-top: 28px; }
.nav a, .logout, .tabs a, .btn {
  border-radius: 12px;
  transition: background .18s ease, color .18s ease, transform .18s ease;
}
.nav a {
  padding: 12px 14px;
  color: var(--muted);
}
.nav a.active, .nav a:hover, .tabs a.active {
  background: rgba(69, 90, 116, 0.10);
  color: var(--primary-strong);
}
.logout { margin-top: auto; padding: 12px 14px; color: var(--danger); }
.logout:hover { background: rgba(181, 71, 71, .08); }

.login-wrap {
  min-height: calc(100vh - 48px);
  display: grid;
  place-items: center;
}
.login-card {
  width: min(460px, 100%);
  padding: 32px;
}
.login-card .btn.primary {
  width: 100%;
  justify-content: center;
  text-align: center;
}
.login-title { margin-bottom: 24px; }
.login-title h1 { margin: 0 0 6px; font-size: 24px; }
label { display: grid; gap: 8px; margin-bottom: 14px; color: var(--muted); }
input, select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 14px;
  color: var(--text);
  background: rgba(255, 255, 255, .62);
  outline: none;
}
input:focus, select:focus { border-color: rgba(69, 90, 116, .42); }
.captcha-row { display: grid; grid-template-columns: 1fr 120px; gap: 10px; }
.captcha-row img { width: 120px; height: 42px; border-radius: 12px; cursor: pointer; }
.check-line { display: flex; align-items: center; gap: 8px; }
.check-line input { width: auto; }

.btn, .link-btn {
  border: 1px solid var(--line);
  padding: 11px 16px;
  cursor: pointer;
  background: rgba(255, 255, 255, .54);
  color: var(--primary-strong);
}
.btn:hover { transform: translateY(-1px); background: rgba(255, 255, 255, .78); }
.btn.primary {
  border-color: transparent;
  color: #fff;
  background: var(--primary);
}
.link-btn {
  border: 0;
  padding: 0;
  color: var(--danger);
  background: transparent;
}

.page-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}
.eyebrow {
  margin: 0 0 6px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
}
h1, h2 { margin: 0; }
h1 { font-size: clamp(28px, 4vw, 42px); letter-spacing: -0.04em; }
h2 { font-size: 18px; }

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}
.metric-grid.wide { grid-template-columns: repeat(7, minmax(150px, 1fr)); }
.metric { padding: 20px; }
.metric span { display: block; color: var(--muted); margin-bottom: 10px; }
.metric strong { font-size: 28px; letter-spacing: -0.03em; }
.overview-hero {
  display: grid;
  grid-template-columns: minmax(0, 2.2fr) minmax(260px, .8fr);
  gap: 20px;
  margin-bottom: 20px;
}
.revenue-card {
  min-height: 240px;
  padding: 34px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.revenue-card span,
.revenue-card small {
  color: var(--muted);
}
.revenue-card strong {
  margin: 14px 0;
  color: var(--primary-strong);
  font-size: clamp(48px, 7vw, 86px);
  line-height: 1;
  letter-spacing: -0.06em;
}
.overview-side {
  display: grid;
  gap: 20px;
}
.overview-side .metric {
  min-height: 110px;
}
.overview-metrics {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.previous-overview {
  margin-top: 4px;
}
.previous-metrics {
  margin-bottom: 0;
}

.panel { padding: 20px; margin-bottom: 20px; }
.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}
.split-layout {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 20px;
}
.form-panel { align-self: start; }
.tabs { display: flex; gap: 8px; flex-wrap: wrap; }
.tabs a { padding: 10px 14px; color: var(--muted); border: 1px solid var(--line); background: rgba(255,255,255,.38); }
.filter-bar {
  display: flex;
  align-items: end;
  gap: 12px;
  flex-wrap: wrap;
}
.filter-bar label { min-width: 180px; margin: 0; }
.filter-bar input { min-width: 260px; }
.date-composer {
  display: flex;
  align-items: end;
  gap: 12px;
  flex-wrap: wrap;
}
.date-composer label {
  min-width: 150px;
}
.date-composer [hidden] {
  display: none;
}

.table-wrap { width: 100%; overflow-x: auto; }
table { width: 100%; border-collapse: collapse; min-width: 760px; }
tbody tr {
  position: relative;
  transition: background .16s ease, box-shadow .16s ease;
}
tbody tr:hover {
  background: rgba(69, 90, 116, 0.08);
  box-shadow: inset 4px 0 0 rgba(69, 90, 116, 0.42);
}
th, td {
  padding: 13px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: middle;
}
th { color: var(--muted); font-weight: 600; font-size: 13px; }
td small { display: block; margin-top: 4px; color: var(--muted); }
.empty { text-align: center; color: var(--muted); padding: 30px; }
.actions { display: flex; align-items: center; gap: 12px; }
.actions form { display: inline; }
.pagination {
  display: flex;
  justify-content: flex-end;
  gap: 14px;
  margin-top: 16px;
  color: var(--muted);
}
.rank-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
.compact table { min-width: 680px; }
.ranking-section {
  margin-top: 18px;
}
.ranking-section h3 {
  margin: 0 0 10px;
  color: var(--primary-strong);
  font-size: 15px;
}
.ranking-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.ranking-tabs button {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 8px 12px;
  cursor: pointer;
  color: var(--muted);
  background: rgba(255, 255, 255, .46);
}
.ranking-tabs button.active,
.ranking-tabs button:hover {
  color: var(--primary-strong);
  background: rgba(255, 255, 255, .82);
}
.bucket-panel .panel-head {
  margin-bottom: 12px;
}
.bucket-table table {
  min-width: 680px;
}
.bucket-table th,
.bucket-table td {
  text-align: center;
  white-space: nowrap;
}
.bucket-table th:first-child,
.bucket-table td:first-child {
  position: sticky;
  left: 0;
  z-index: 1;
  text-align: left;
  background: rgba(255, 255, 255, .72);
}
.change {
  display: inline-block;
  border-radius: 999px;
  padding: 5px 10px;
  font-size: 13px;
}
.change.up { color: var(--success); background: rgba(25, 120, 91, .08); }
.change.down { color: var(--danger); background: rgba(181, 71, 71, .08); }
.alert {
  margin-bottom: 16px;
  padding: 13px 16px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.7);
}
.alert.success { color: var(--success); }
.alert.error { color: var(--danger); }

@media (max-width: 1024px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar { position: static; height: auto; }
  .nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .metric-grid, .metric-grid.wide, .rank-grid, .split-layout, .overview-hero, .overview-metrics { grid-template-columns: 1fr; }
  .page-head { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 640px) {
  .shell { width: min(100% - 20px, 1500px); padding: 10px 0; }
  .login-card, .panel, .sidebar, .metric { padding: 16px; }
  .nav { grid-template-columns: 1fr; }
  .filter-bar, .tabs { width: 100%; }
  .filter-bar label, .filter-bar input, .btn { width: 100%; min-width: 0; }
}