:root {
  --bg: #090909;
  --surface: #121212;
  --surface-hover: #1a1a1a;
  --border: #1e1e1e;
  --border-light: #2a2a2a;
  --gold: #c8a96b;
  --gold-dim: #8a7548;
  --text: #e8e8e8;
  --text-muted: #888;
  --text-dim: #555;
  --green: #4ade80;
  --red: #f87171;
  --radius: 12px;
  --font-heading: 'Cormorant Garamond', serif;
  --font-body: 'DM Sans', sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

.dashboard {
  max-width: 1600px;
  margin: 0 auto;
  padding: 32px 40px 48px;
  transition: filter 0.2s ease;
}

body.is-locked .dashboard {
  filter: blur(8px);
  pointer-events: none;
  user-select: none;
}

/* Login overlay */
.login-overlay {
  position: fixed;
  inset: 0;
  background: rgba(9, 9, 9, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 300;
  padding: 20px;
}

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

.login-modal {
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 40px 36px;
  width: 360px;
  max-width: 100%;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.6);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.login-modal .brand-logo {
  width: 36px;
  margin-bottom: 16px;
}

.login-title {
  font-family: var(--font-heading);
  font-size: 26px;
  font-weight: 600;
  color: var(--text);
}

.login-subtitle {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 6px;
  margin-bottom: 28px;
}

.login-field {
  width: 100%;
  text-align: left;
  margin-bottom: 16px;
}

.login-field span {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 6px;
}

.login-field input {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border-light);
  color: var(--text);
  border-radius: 8px;
  padding: 10px 12px;
  font-family: var(--font-body);
  font-size: 14px;
}

.login-field input:focus {
  outline: none;
  border-color: var(--gold);
}

#loginSubmit {
  width: 100%;
  background: var(--gold);
  color: #090909;
  border: none;
  border-radius: 8px;
  padding: 12px;
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  margin-top: 8px;
  transition: background 0.2s ease;
}

#loginSubmit:hover {
  background: var(--gold-dim);
}

#loginSubmit:disabled {
  opacity: 0.6;
  cursor: default;
}

.login-error {
  color: var(--red);
  font-size: 13px;
  margin-top: 14px;
}

/* Header */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 32px;
  flex-wrap: wrap;
  gap: 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-logo {
  flex-shrink: 0;
  width: 28px;
  height: auto;
  animation: shimmer 4s ease-in-out infinite;
}

@keyframes shimmer {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

.brand-text h1 {
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 600;
  letter-spacing: 1px;
  color: var(--text);
  line-height: 1.1;
}

.tagline {
  font-size: 12px;
  color: var(--gold);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-top: 2px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.custom-range-picker[hidden] {
  display: none;
}

.custom-range-picker {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin: -12px 0 24px;
  padding: 12px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.custom-range-picker label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
}

.custom-range-picker input[type="date"] {
  background: var(--bg);
  border: 1px solid var(--border-light);
  color: var(--text);
  border-radius: 8px;
  padding: 6px 10px;
  font-family: var(--font-body);
  font-size: 13px;
  color-scheme: dark;
}

.custom-range-picker button {
  background: var(--gold);
  color: #090909;
  border: none;
  border-radius: 8px;
  padding: 8px 16px;
  font-weight: 700;
  font-size: 13px;
  cursor: pointer;
}

.custom-range-picker button:hover {
  background: var(--gold-dim);
}

.custom-range-error {
  color: var(--red);
  font-size: 12px;
}

/* Tabs */
.tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

.tab-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  padding: 10px 18px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
  margin-bottom: -1px;
}

.tab-btn:hover {
  color: var(--text);
}

.tab-btn.active {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

/* Reports */
.reports-upload {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.reports-upload input[type="file"] {
  color: var(--text-muted);
  font-size: 13px;
}

.reports-upload button {
  background: var(--gold);
  color: #090909;
  border: none;
  border-radius: 8px;
  padding: 8px 16px;
  font-weight: 700;
  font-size: 13px;
  cursor: pointer;
}

.reports-upload button:hover {
  background: var(--gold-dim);
}

.reports-upload-status {
  margin-top: 12px;
  font-size: 13px;
}

.reports-upload-status.error {
  color: var(--red);
}

.reports-upload-status.success {
  color: var(--green);
}

.reports-download-link {
  background: transparent;
  border: none;
  color: var(--gold);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  padding: 0;
}

.reports-download-link:hover {
  text-decoration: underline;
}

.reports-download-link:disabled {
  color: var(--text-dim);
  cursor: default;
  text-decoration: none;
}

.period-selector {
  display: flex;
  gap: 4px;
  background: var(--surface);
  border-radius: var(--radius);
  padding: 4px;
  border: 1px solid var(--border);
}

.period-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.period-btn:hover {
  color: var(--text);
}

.period-btn.active {
  background: var(--gold);
  color: #090909;
  font-weight: 700;
}

.refresh-info {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-muted);
}

.refresh-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 8px rgba(74, 222, 128, 0.5);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.last-updated {
  color: var(--text-dim);
}

/* KPI Grid */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 32px;
}

.kpi-grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.kpi-tile {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: border-color 0.3s ease, transform 0.2s ease;
  position: relative;
  overflow: hidden;
}

.kpi-tile::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.kpi-tile:hover {
  border-color: var(--border-light);
  transform: translateY(-2px);
}

.kpi-tile:hover::before {
  transform: scaleX(1);
}

.kpi-label {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 12px;
}

.kpi-value {
  font-family: var(--font-heading);
  font-size: 42px;
  font-weight: 600;
  color: var(--text);
  line-height: 1;
  margin-bottom: 8px;
}

.kpi-change {
  font-size: 13px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 4px;
}

.kpi-change.up { color: var(--green); }
.kpi-change.down { color: var(--red); }
.kpi-change.neutral { color: var(--text-muted); }

/* Charts */
.charts-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 20px;
  margin-bottom: 32px;
}

.chart-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.card-title {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}

.card-subtitle {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.chart-wrap {
  position: relative;
  height: 300px;
}

/* Table */
.table-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 32px;
}

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

table {
  width: 100%;
  border-collapse: collapse;
}

thead th {
  text-align: left;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-light);
  font-weight: 500;
}

.th-right {
  text-align: right;
}

tbody td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}

tbody td:last-child {
  text-align: right;
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 600;
  color: var(--gold);
}

tbody tr:last-child td {
  border-bottom: none;
}

tbody tr:hover td {
  background: var(--surface-hover);
}

.loading-row {
  text-align: center !important;
  color: var(--text-dim);
  font-style: italic;
}

.empty-row {
  text-align: center !important;
  color: var(--text-dim);
}

/* Footer */
.footer {
  text-align: center;
  color: var(--text-dim);
  font-size: 12px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

/* Widget info sidebar */
.widget-title {
  cursor: pointer;
  width: fit-content;
  transition: color 0.2s ease;
}

.widget-title:hover,
.widget-title:focus-visible {
  color: var(--gold);
}

.widget-title:focus-visible {
  outline: 1px solid var(--gold);
  outline-offset: 4px;
  border-radius: 4px;
}

.info-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  z-index: 99;
}

.info-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.info-sidebar {
  position: fixed;
  top: 0;
  right: 0;
  height: 100vh;
  width: 360px;
  max-width: 88vw;
  background: var(--surface);
  border-left: 1px solid var(--border-light);
  padding: 32px 28px;
  transform: translateX(100%);
  transition: transform 0.3s ease;
  z-index: 100;
  overflow-y: auto;
}

.info-sidebar.open {
  transform: translateX(0);
}

.info-close {
  background: transparent;
  border: 1px solid var(--border-light);
  color: var(--text-muted);
  width: 32px;
  height: 32px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  margin-bottom: 24px;
}

.info-close:hover {
  color: var(--text);
  border-color: var(--gold);
}

.info-title {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 16px;
}

.info-body {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-muted);
}

/* Responsive */
@media (max-width: 900px) {
  .dashboard {
    padding: 20px;
  }

  .kpi-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .kpi-grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .header-right {
    width: 100%;
    justify-content: space-between;
  }
}

@media (max-width: 500px) {
  .kpi-grid {
    grid-template-columns: 1fr;
  }

  .kpi-grid-3 {
    grid-template-columns: 1fr;
  }

  .kpi-value {
    font-size: 36px;
  }

  .period-btn {
    padding: 7px 12px;
    font-size: 12px;
  }
}