:root {
  --bg: #08111f;
  --bg-deep: #050b16;
  --panel: rgba(12, 24, 42, 0.84);
  --panel-strong: rgba(20, 35, 58, 0.96);
  --panel-soft: rgba(27, 46, 74, 0.76);
  --border: rgba(163, 184, 210, 0.18);
  --border-strong: rgba(173, 198, 228, 0.26);
  --text: #edf4ff;
  --muted: #9fb2ca;
  --accent: #8fb4d8;
  --accent-bright: #dce9f6;
  --accent-dark: #5e7fa3;
  --success: #62d3a3;
  --danger: #ff8f9e;
  --shadow: 0 24px 70px rgba(2, 8, 18, 0.44);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(143, 180, 216, 0.24), transparent 26%),
    radial-gradient(circle at 85% 10%, rgba(126, 156, 194, 0.16), transparent 20%),
    radial-gradient(circle at bottom right, rgba(73, 102, 144, 0.22), transparent 28%),
    linear-gradient(180deg, #0d1a2d 0%, var(--bg) 48%, var(--bg-deep) 100%);
}

.shell {
  width: min(1400px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 48px;
}

.eyebrow {
  margin: 0 0 10px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.75rem;
  color: var(--accent);
  font-weight: 700;
}

.hero-note {
  background: linear-gradient(135deg, rgba(18, 34, 58, 0.92), rgba(31, 53, 82, 0.78));
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  padding: 12px 16px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--accent-bright);
  box-shadow: var(--shadow);
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--success);
}

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 18px;
}

.panel {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0)),
    var(--panel);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.panel::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, rgba(220, 233, 246, 0.28), rgba(220, 233, 246, 0));
  pointer-events: none;
}

.settings-panel,
.trade-entry-panel {
  grid-column: span 4;
}

.metrics-panel,
.chart-panel,
.history-panel,
.timeline-panel,
.monthly-panel {
  grid-column: span 8;
}

.metrics-panel {
  grid-column: span 8;
}

.chart-panel,
.timeline-panel,
.monthly-panel {
  grid-column: span 12;
}

.history-panel {
  grid-column: span 12;
}

.panel-heading {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 18px;
}

.meta-text {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.panel h2 {
  margin: 0;
  font-weight: 700;
}

.panel h2 {
  letter-spacing: -0.02em;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.form-grid label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 0.92rem;
}

.form-grid label span {
  font-weight: 600;
  color: var(--text);
}

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

input,
textarea,
button {
  font: inherit;
}

input,
textarea {
  width: 100%;
  border: 1px solid rgba(173, 198, 228, 0.18);
  background: var(--panel-strong);
  color: var(--text);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  transition: border-color 120ms ease, transform 120ms ease, box-shadow 120ms ease;
}

input:focus,
textarea:focus {
  outline: none;
  border-color: rgba(143, 180, 216, 0.55);
  box-shadow: 0 0 0 4px rgba(143, 180, 216, 0.14);
}

button,
.file-button {
  border: 0;
  border-radius: 999px;
  padding: 12px 16px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 120ms ease, opacity 120ms ease, box-shadow 120ms ease;
}

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

.primary {
  background: linear-gradient(135deg, var(--accent-bright), var(--accent));
  color: #0d1a2d;
  box-shadow: 0 14px 28px rgba(143, 180, 216, 0.22);
}

.secondary {
  background: rgba(143, 180, 216, 0.12);
  color: var(--accent-bright);
  border: 1px solid rgba(173, 198, 228, 0.16);
}

.ghost {
  background: rgba(255, 255, 255, 0.01);
  border: 1px solid var(--border);
  color: var(--text);
}

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

.settings-actions,
.backup-actions {
  grid-column: 1 / -1;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.backup-actions {
  margin-top: 16px;
}

.file-button {
  position: relative;
  overflow: hidden;
  background: rgba(143, 180, 216, 0.12);
  display: inline-flex;
  align-items: center;
  color: var(--accent-bright);
  border: 1px solid rgba(173, 198, 228, 0.16);
}

.file-button input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.metric-card {
  background:
    linear-gradient(180deg, rgba(220, 233, 246, 0.04), rgba(255, 255, 255, 0)),
    var(--panel-soft);
  border: 1px solid rgba(173, 198, 228, 0.14);
  border-radius: var(--radius-md);
  padding: 16px;
}

.metric-label {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 0.92rem;
}

.metric-value {
  margin: 0;
  font-size: clamp(1.3rem, 2.2vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
}

.metric-detail {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

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

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

canvas {
  width: 100%;
  display: block;
  border-radius: var(--radius-md);
  background:
    linear-gradient(180deg, rgba(220, 233, 246, 0.08), rgba(255, 255, 255, 0.02)),
    linear-gradient(180deg, rgba(143, 180, 216, 0.08), rgba(73, 102, 144, 0.03));
  border: 1px solid rgba(173, 198, 228, 0.12);
}

.table-wrap {
  overflow: auto;
  border-radius: var(--radius-md);
  border: 1px solid rgba(173, 198, 228, 0.14);
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 680px;
  background: rgba(9, 18, 33, 0.55);
}

th,
td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid rgba(173, 198, 228, 0.08);
  vertical-align: top;
}

th {
  position: sticky;
  top: 0;
  background: rgba(18, 32, 54, 0.96);
  color: var(--accent);
  font-size: 0.84rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

tbody tr:hover {
  background: rgba(143, 180, 216, 0.06);
}

.table-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.table-actions button {
  padding: 8px 10px;
  font-size: 0.85rem;
}

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

.empty-state {
  text-align: center;
  color: var(--muted);
  padding: 24px;
}

::selection {
  background: rgba(143, 180, 216, 0.28);
  color: var(--accent-bright);
}

input::placeholder,
textarea::placeholder {
  color: rgba(159, 178, 202, 0.72);
}

@media (max-width: 1100px) {
  .settings-panel,
  .trade-entry-panel,
  .metrics-panel,
  .chart-panel,
  .history-panel,
  .timeline-panel,
  .monthly-panel {
    grid-column: span 12;
  }

  .metrics-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .shell {
    width: min(100% - 20px, 1400px);
    padding-top: 18px;
  }

  .panel-heading,
  .settings-actions,
  .backup-actions {
    flex-direction: column;
  }

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

  table {
    min-width: 560px;
  }
}