:root {
  --bg-primary: #0f1117;
  --bg-secondary: #161b22;
  --bg-card: #1c2128;
  --bg-hover: #21262d;
  --border: #30363d;
  --text-primary: #e6edf3;
  --text-secondary: #8b949e;
  --text-muted: #6e7681;
  --accent: #58a6ff;
  --accent-dim: #1f6feb33;
  --green: #3fb950;
  --green-dim: #23863633;
  --red: #f85149;
  --red-dim: #da363333;
  --yellow: #d29922;
  --sidebar-width: 240px;
  --radius: 10px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
}

/* ── Login ── */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: radial-gradient(ellipse at 50% 0%, #1a2332 0%, var(--bg-primary) 70%);
}

.login-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2.5rem;
  width: 100%;
  max-width: 400px;
  box-shadow: var(--shadow);
}

.login-logo {
  text-align: center;
  margin-bottom: 2rem;
}

.login-logo h1 {
  font-size: 1.75rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent), #a371f7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.login-logo p {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-top: 0.25rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 0.375rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.625rem 0.875rem;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: 0.875rem;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.form-group textarea {
  resize: vertical;
  min-height: 80px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  border: none;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  width: 100%;
}

.btn-primary:hover {
  background: #4d9eff;
}

.btn-secondary {
  background: var(--bg-hover);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--border);
}

.btn-danger {
  background: var(--red-dim);
  color: var(--red);
  border: 1px solid var(--red);
}

.btn-sm {
  padding: 0.375rem 0.75rem;
  font-size: 0.8125rem;
}

.login-hint {
  margin-top: 1.5rem;
  padding: 0.875rem;
  background: var(--bg-card);
  border-radius: var(--radius);
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.login-hint code {
  background: var(--bg-primary);
  padding: 0.125rem 0.375rem;
  border-radius: 4px;
  color: var(--accent);
}

.login-loading {
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.875rem;
  padding: 1.5rem 0;
}

.login-init-error {
  background: var(--red-dim);
  border: 1px solid var(--red);
  color: var(--red);
  font-size: 0.8125rem;
  padding: 0.875rem;
  border-radius: var(--radius);
  margin-bottom: 1rem;
  display: none;
  line-height: 1.5;
}

.login-error {
  color: var(--red);
  font-size: 0.8125rem;
  margin-bottom: 1rem;
  display: none;
}

.password-input-wrap {
  position: relative;
}

.password-input-wrap input {
  padding-right: 2.75rem;
}

.password-toggle-btn {
  position: absolute;
  right: 0.5rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  transition: color 0.2s;
}

.password-toggle-btn:hover {
  color: var(--text-primary);
}

/* ── Layout ── */
.app-layout {
  display: none;
  min-height: 100vh;
}

.app-layout.active {
  display: flex;
}

.sidebar {
  width: var(--sidebar-width);
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
}

.sidebar-header {
  padding: 1.25rem 1rem;
  border-bottom: 1px solid var(--border);
}

.sidebar-header h2 {
  font-size: 1.125rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent), #a371f7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.sidebar-header span {
  font-size: 0.6875rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.sidebar-nav {
  flex: 1;
  padding: 0.75rem 0.5rem;
  overflow-y: auto;
}

.nav-section {
  margin-bottom: 1rem;
}

.nav-section-title {
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.5rem 0.75rem;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.625rem 0.75rem;
  border-radius: 8px;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.15s;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}

.nav-item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.nav-item.active {
  background: var(--accent-dim);
  color: var(--accent);
}

.nav-item svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.nav-item.admin-only {
  display: none;
}

body.role-admin .nav-item.admin-only {
  display: flex;
}

/* ── Admin Forms ── */
.admin-form {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.admin-form h4 {
  font-size: 0.9375rem;
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

.form-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 1rem;
}

.form-actions .btn-primary {
  width: auto;
}

.perm-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 0.5rem;
}

.perm-grid label {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  cursor: pointer;
}

.perm-grid input {
  width: auto;
}

.analytics-charts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}

/* ── Analytics Tabs ── */
.analytics-tabs {
  display: flex;
  gap: 0.25rem;
  margin-bottom: 1.5rem;
  padding: 0.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: fit-content;
}

.analytics-tab {
  padding: 0.5rem 1.25rem;
  border: none;
  border-radius: calc(var(--radius) - 2px);
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.analytics-tab:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}

.analytics-tab.active {
  background: var(--accent);
  color: #fff;
}

.analytics-tab-panel {
  display: none;
}

.analytics-tab-panel.active {
  display: block;
}

/* ── Trading Calendar ── */
.trading-calendar {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
}

.calendar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.calendar-nav {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.calendar-nav-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-primary);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
}

.calendar-nav-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.calendar-month-title {
  font-size: 1.125rem;
  font-weight: 700;
  min-width: 160px;
  text-align: center;
}

.calendar-month-stats {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.calendar-month-stats .month-pnl {
  font-weight: 700;
  font-size: 1rem;
}

.calendar-month-stats .month-pnl.positive { color: var(--green); }
.calendar-month-stats .month-pnl.negative { color: var(--red); }

.calendar-days-badge {
  display: inline-block;
  padding: 0.125rem 0.5rem;
  border-radius: 999px;
  background: var(--bg-hover);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
}

.calendar-body {
  display: flex;
  gap: 1rem;
}

.calendar-grid-wrap {
  flex: 1;
  min-width: 0;
}

.calendar-weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 0.375rem;
  margin-bottom: 0.375rem;
}

.calendar-weekday {
  text-align: center;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  padding: 0.375rem 0;
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 0.375rem;
}

.calendar-day {
  aspect-ratio: 1;
  min-height: 80px;
  border-radius: 8px;
  padding: 0.375rem;
  display: flex;
  flex-direction: column;
  position: relative;
  background: var(--bg-primary);
  border: 1px solid var(--border);
}

.calendar-day.empty {
  background: var(--bg-hover);
  border-color: transparent;
}

.calendar-day.other-month {
  opacity: 0.35;
}

.calendar-day.profit {
  background: rgba(63, 185, 80, 0.12);
  border-color: rgba(63, 185, 80, 0.25);
}

.calendar-day.loss {
  background: rgba(248, 81, 73, 0.12);
  border-color: rgba(248, 81, 73, 0.25);
}

.calendar-day.breakeven {
  background: var(--bg-hover);
}

.calendar-day-num {
  position: absolute;
  top: 0.375rem;
  right: 0.5rem;
  font-size: 0.6875rem;
  color: var(--text-muted);
  font-weight: 500;
}

.calendar-day-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  gap: 0.125rem;
  padding-top: 0.75rem;
}

.calendar-day-pnl {
  font-size: 0.8125rem;
  font-weight: 700;
}

.calendar-day-pnl.positive { color: var(--green); }
.calendar-day-pnl.negative { color: var(--red); }

.calendar-day-trades {
  font-size: 0.625rem;
  color: var(--text-muted);
}

.calendar-day-winrate {
  font-size: 0.625rem;
  color: var(--text-secondary);
  font-weight: 600;
}

.calendar-weeks {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  min-width: 120px;
}

.calendar-week-card {
  flex: 1;
  min-height: 80px;
  border-radius: 8px;
  padding: 0.625rem;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  gap: 0.25rem;
}

.calendar-week-label {
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--text-muted);
}

.calendar-week-pnl {
  font-size: 0.875rem;
  font-weight: 700;
}

.calendar-week-pnl.positive { color: var(--green); }
.calendar-week-pnl.negative { color: var(--red); }
.calendar-week-pnl.neutral { color: var(--text-secondary); }

.calendar-week-days {
  font-size: 0.625rem;
  color: var(--text-muted);
  padding: 0.125rem 0.375rem;
  border-radius: 999px;
  background: var(--bg-hover);
}

/* ── Trade card actions ── */
.trade-card-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.trade-card-stats {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.trade-stat {
  font-size: 0.75rem;
  color: var(--text-muted);
  background: var(--bg-primary);
  padding: 0.125rem 0.5rem;
  border-radius: 4px;
}

.badge-category {
  background: #d2992233;
  color: var(--yellow);
}

.badge-log-error {
  background: var(--red-dim);
  color: var(--red);
}

.badge-log-warn {
  background: #d2992233;
  color: var(--yellow);
}

.badge-log-info {
  background: var(--accent-dim);
  color: var(--accent);
}

.log-details {
  font-size: 0.75rem;
  color: var(--text-muted);
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.log-row.log-error {
  background: rgba(248, 81, 73, 0.05);
}

code {
  font-size: 0.75rem;
  background: var(--bg-primary);
  padding: 0.125rem 0.375rem;
  border-radius: 4px;
  color: var(--text-muted);
}

.sidebar-footer {
  padding: 1rem;
  border-top: 1px solid var(--border);
}

.user-info {
  display: flex;
  align-items: center;
  gap: 0.625rem;
}

.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--accent-dim);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.8125rem;
}

.user-details {
  flex: 1;
  min-width: 0;
}

.user-details .name {
  font-size: 0.8125rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-details .role {
  font-size: 0.6875rem;
  color: var(--text-muted);
  text-transform: capitalize;
}

.logout-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 4px;
}

.logout-btn:hover {
  color: var(--red);
}

/* ── Main Content ── */
.main-content {
  margin-left: var(--sidebar-width);
  flex: 1;
  padding: 1.5rem 2rem;
  min-height: 100vh;
}

.page-header {
  margin-bottom: 1.5rem;
}

.page-header h1 {
  font-size: 1.5rem;
  font-weight: 700;
}

.page-header p {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-top: 0.25rem;
}

.page {
  display: none;
}

.page.active {
  display: block;
}

/* ── Cards & Stats ── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
}

.stat-card .label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.375rem;
}

.stat-card .value {
  font-size: 1.5rem;
  font-weight: 700;
}

.stat-card .value.positive { color: var(--green); }
.stat-card .value.negative { color: var(--red); }

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-bottom: 1rem;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.card-header h3 {
  font-size: 1rem;
  font-weight: 600;
}

/* ── Tables ── */
.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8125rem;
}

thead th {
  text-align: left;
  padding: 0.625rem 0.75rem;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-bottom: 1px solid var(--border);
}

tbody td {
  padding: 0.75rem;
  border-bottom: 1px solid var(--border);
}

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

.badge {
  display: inline-block;
  padding: 0.125rem 0.5rem;
  border-radius: 999px;
  font-size: 0.6875rem;
  font-weight: 600;
}

.badge-long {
  background: var(--green-dim);
  color: var(--green);
}

.badge-short {
  background: var(--red-dim);
  color: var(--red);
}

.badge-admin {
  background: #a371f733;
  color: #a371f7;
}

.badge-user {
  background: var(--accent-dim);
  color: var(--accent);
}

.pnl-positive { color: var(--green); font-weight: 600; }
.pnl-negative { color: var(--red); font-weight: 600; }

/* ── Charts (CSS bars) ── */
.chart-bars {
  display: flex;
  align-items: flex-end;
  gap: 0.75rem;
  height: 180px;
  padding: 1rem 0;
}

.chart-bar-group {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.375rem;
}

.chart-bar {
  width: 100%;
  max-width: 48px;
  border-radius: 6px 6px 0 0;
  transition: height 0.5s ease;
  min-height: 4px;
}

.chart-bar.positive { background: var(--green); }
.chart-bar.negative { background: var(--red); }

.chart-bar-label {
  font-size: 0.6875rem;
  color: var(--text-muted);
}

.chart-bar-value {
  font-size: 0.6875rem;
  font-weight: 600;
}

/* ── Trade Form ── */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-grid .full-width {
  grid-column: 1 / -1;
}

.file-upload {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s;
}

.file-upload:hover {
  border-color: var(--accent);
}

.file-upload input {
  display: none;
}

.file-upload p {
  color: var(--text-muted);
  font-size: 0.8125rem;
}

.preview-img {
  max-width: 100%;
  max-height: 200px;
  border-radius: var(--radius);
  margin-top: 0.75rem;
}

/* ── Trade Cards ── */
.trade-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}

.trade-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.2s;
}

.trade-card:hover {
  border-color: var(--accent);
}

.trade-card-img {
  width: 100%;
  height: 140px;
  object-fit: cover;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.8125rem;
}

.trade-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.trade-card-body {
  padding: 1rem;
}

.trade-card-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.trade-card-asset {
  font-weight: 700;
  font-size: 1rem;
}

.trade-card-date {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.trade-card-notes {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  margin-top: 0.375rem;
}

/* ── Analytics Controls ── */
.analytics-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: flex-end;
  margin-bottom: 1.5rem;
  padding: 1rem 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.analytics-controls .form-group,
.analytics-sub-controls .form-group {
  margin-bottom: 0;
  min-width: 160px;
}

.analytics-sub-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: flex-end;
}

/* ── Trade Search ── */
.trade-search-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: flex-end;
  margin-bottom: 1rem;
  padding: 1rem 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.trade-search-bar .form-group {
  margin-bottom: 0;
  min-width: 160px;
}

/* ── Asset pills ── */
.asset-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.asset-pill {
  padding: 0.375rem 0.875rem;
  border-radius: 999px;
  background: var(--bg-hover);
  border: 1px solid var(--border);
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
  color: var(--text-secondary);
}

.asset-pill.active,
.asset-pill:hover {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent);
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .sidebar {
    width: 60px;
  }

  .sidebar-header h2,
  .sidebar-header span,
  .nav-section-title,
  .nav-item span,
  .user-details {
    display: none;
  }

  .nav-item {
    justify-content: center;
    padding: 0.75rem;
  }

  .main-content {
    margin-left: 60px;
    padding: 1rem;
  }

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

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

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

  .calendar-body {
    flex-direction: column;
  }

  .calendar-weeks {
    flex-direction: row;
    flex-wrap: wrap;
    min-width: 0;
  }

  .calendar-week-card {
    flex: 1 1 calc(33% - 0.5rem);
    min-height: 64px;
  }

  .calendar-day {
    min-height: 64px;
  }
}