:root {
  /* Base Variables */
  --font-base: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 18px;
  --radius-full: 9999px;

  /* Dark Theme (Default) */
  --bg: #050a18;
  --bg-alt: #071022;
  --surface: rgba(15, 23, 42, 0.92);
  --surface-emphasis: rgba(17, 24, 39, 0.95);
  --surface-card: rgba(17, 29, 52, 0.85);
  --border: rgba(148, 163, 184, 0.14);
  --border-strong: rgba(148, 163, 184, 0.24);
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --accent: #38bdf8;
  --accent-strong: #0ea5e9;
  --accent-soft: rgba(56, 189, 248, 0.15);
  --success: #4ade80;
  --success-soft: rgba(74, 222, 128, 0.15);
  --danger: #fb7185;
  --danger-soft: rgba(251, 113, 133, 0.15);
  --warning: #fbbf24;

  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 18px 36px rgba(2, 6, 23, 0.35);
  --shadow-inner: inset 0 1px 0 rgba(148, 163, 184, 0.12);

  --body-background: radial-gradient(
    circle at 10% 20%,
    #0b1940 0%,
    #050910 55%,
    #03060c 100%
  );

  --checkbox-bg: rgba(15, 23, 42, 0.45);
  --checkbox-border: rgba(148, 163, 184, 0.6);
  --checkbox-checked: #38bdf8;
  --checkbox-icon: #0b1729;

  --glass-border: 1px solid rgba(255, 255, 255, 0.08);
  --glass-bg: rgba(17, 25, 40, 0.75);
}

[data-theme="light"] {
  --bg: #f8fafc;
  --bg-alt: #f1f5f9;
  --surface: #ffffff;
  --surface-emphasis: #f8fafc;
  --surface-card: rgba(255, 255, 255, 0.9);
  --border: rgba(226, 232, 240, 0.8);
  --border-strong: rgba(203, 213, 225, 0.8);
  --text: #0f172a;
  --text-muted: #64748b;
  --accent: #0284c7;
  --accent-strong: #0369a1;
  --accent-soft: rgba(2, 132, 199, 0.1);
  --success: #16a34a;
  --success-soft: rgba(22, 163, 74, 0.1);
  --danger: #dc2626;
  --danger-soft: rgba(220, 38, 38, 0.1);
  --warning: #d97706;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --shadow-inner: inset 0 1px 0 rgba(255, 255, 255, 0.8);

  --body-background: #f1f5f9;

  --checkbox-bg: #ffffff;
  --checkbox-border: #cbd5e1;
  --checkbox-checked: #0284c7;
  --checkbox-icon: #ffffff;

  --glass-border: 1px solid rgba(255, 255, 255, 0.5);
  --glass-bg: rgba(255, 255, 255, 0.7);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-base);
  background: var(--body-background);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
  transition: color 0.3s ease, background 0.3s ease;
}

/* Smooth theme transition */
body.theme-transition,
body.theme-transition *,
body.theme-transition *::before,
body.theme-transition *::after {
  transition: all 0.3s ease !important;
  transition-delay: 0s !important;
}

a {
  color: inherit;
  text-decoration: none;
}

.page-shell {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 40px 24px 60px;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

/* Card Styling */
.card {
  background: var(--surface-card);
  border: var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.card::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(120deg, var(--accent-soft), transparent 55%);
  opacity: 0.5;
}

/* Page Header */
.page-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
  padding: 32px;
}

.page-heading {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-title {
  font-size: clamp(24px, 4vw, 32px);
  font-weight: 800;
  margin: 0;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--text) 0%, var(--text-muted) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.page-subtitle {
  margin: 0;
  color: var(--text-muted);
  font-size: 15px;
  max-width: 500px;
}

.page-meta {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Chips */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-muted);
}

.chip--accent {
  color: var(--accent-strong);
  border-color: var(--accent);
  background: var(--accent-soft);
}

/* Layout */
.layout-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

.layout-grid--single {
  grid-template-columns: minmax(0, 1fr);
}

.layout-column {
  display: flex;
  flex-direction: column;
  gap: 28px;
  min-width: 0;
}

.layout-column--secondary {
  position: sticky;
  top: 28px;
  align-self: flex-start;
}

/* Panel Grid */
.panel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 28px;
}

.panel {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  position: relative;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.panel-title {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
  gap: 8px;
}

.panel-subtitle {
  margin: 4px 0 0;
  font-size: 13px;
  color: var(--text-muted);
}

.panel-body {
  border-radius: var(--radius-md);
  background: var(--bg-alt);
  border: 1px solid var(--border);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Balance Summary */
.balance-summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
}

.balance-summary div {
  padding: 16px;
  border-radius: var(--radius-md);
  background: var(--surface);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: transform 0.2s, box-shadow 0.2s;
}

.balance-summary div:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* Table */
.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--surface);
  -webkit-overflow-scrolling: touch;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 600px;
}

thead th {
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  color: var(--text-muted);
  background: var(--bg-alt);
  padding: 16px;
  border-bottom: 1px solid var(--border);
  text-align: left;
}

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

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

tbody tr {
  transition: background 0.15s ease;
}

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

/* Utilities */
.muted {
  color: var(--text-muted);
}
.text-right {
  text-align: right;
}
.pnl-positive {
  color: var(--success);
  font-weight: 600;
}
.pnl-negative {
  color: var(--danger);
  font-weight: 600;
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}

/* Inputs */
.input-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
}

input:not([type="checkbox"]):not([type="radio"]),
select {
  appearance: none;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  padding: 12px 16px;
  font-size: 14px;
  transition: all 0.2s ease;
  width: 100%;
}

input:focus,
select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 600;
  background: var(--accent);
  color: white;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

[data-theme="light"] .btn {
  color: white;
}

.btn:hover {
  background: var(--accent-strong);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px var(--accent-soft);
}

.btn:active {
  transform: translateY(0);
}

.btn--ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn--ghost:hover {
  background: var(--bg-alt);
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: none;
}

/* Toggle Switch */
.theme-toggle {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 8px;
  border-radius: 50%;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.theme-toggle:hover {
  background: var(--bg-alt);
  color: var(--text);
}

/* Theme Toggle Icons */
.theme-icon {
  transition: opacity 0.2s ease;
}

.moon-icon {
  display: block;
}

.sun-icon {
  display: none;
}

[data-theme="light"] .moon-icon {
  display: none;
}

[data-theme="light"] .sun-icon {
  display: block;
}

/* Journal Controls */
.journal-controls {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  padding: 20px;
  border-radius: var(--radius-md);
  background: var(--bg-alt);
  border: 1px solid var(--border);
}

.journal-type-filters {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  padding: 12px;
  background: var(--surface);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.journal-type-filters label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  color: var(--text);
}

/* Pagination */
.journal-pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 20px;
}

.pager-btn {
  min-width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s;
}

.pager-btn:hover:not(.pager-btn--active) {
  border-color: var(--accent);
  color: var(--accent);
}

.pager-btn--active {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

/* Responsive Adjustments */
@media (max-width: 1024px) {
  .page-shell {
    padding: 32px 20px 40px;
  }

  .layout-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .layout-column--secondary {
    position: static;
  }
}

@media (max-width: 768px) {
  .page-header {
    flex-direction: column;
    padding: 24px;
  }

  .page-meta {
    width: 100%;
    justify-content: space-between;
  }

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

  .balance-summary {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .page-shell {
    padding: 16px;
  }

  .card {
    padding: 20px;
  }

  .panel-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .panel-actions {
    width: 100%;
  }

  .btn {
    flex: 1;
  }

  .journal-controls {
    grid-template-columns: 1fr;
  }

  .balance-summary {
    grid-template-columns: 1fr;
  }
}