:root {
  /* Bochum Corporate Design Colors */
  --bochum-gelb: #ffcc01;
  --bochum-gelb-hover: #FFDB33;
  --bochum-orange: #f49100;
  --bochum-rot: #e61937;
  --bochum-pink: #e5006d;
  --bochum-bordeaux: #800032;
  --bochum-violett: #94559c;
  --bochum-grau: #aec0ca;
  --bochum-petrol: #00847e;
  --bochum-tuerkis: #17af8d;
  --bochum-gruen: #76b729;
  --bochum-blau: #0f2864;
  --bochum-cyan: #0ab4ff;
  --weiss: rgba(255, 255, 253, 1);
  --schwarz: #000000;
  --offwhite: #E0E0E0;

  /* Colors mapped to Bochum CD - Bochum Blau as primary */
  --color-background: var(--weiss);
  --color-surface: #fcfcf9;
  --color-text: var(--bochum-blau);
  --color-text-secondary: #6c767d;
  --color-primary: var(--bochum-blau);
  --color-primary-hover: #0a1e4a;
  --color-primary-active: #061530;
  --color-secondary: rgba(174, 192, 202, 0.15);
  --color-secondary-hover: rgba(174, 192, 202, 0.25);
  --color-secondary-active: rgba(174, 192, 202, 0.35);
  --color-border: var(--bochum-grau);
  --color-btn-primary-text: var(--weiss);
  --color-card-border: #e3e7ea;
  --color-card-border-inner: #e3e7ea;
  --color-error: var(--bochum-rot);
  --color-success: var(--bochum-blau);
  --color-warning: var(--bochum-orange);
  --color-info: var(--bochum-cyan);
  --color-focus-ring: rgba(15, 40, 100, 0.4);
  --color-select-caret: var(--bochum-blau);

  /* Common style patterns */
  --focus-ring: 0 0 0 3px var(--color-focus-ring);
  --focus-outline: 2px solid var(--color-primary);
  --status-bg-opacity: 0.15;
  --status-border-opacity: 0.25;
  --select-caret-light: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%230f2864' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  --select-caret-dark: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");

  /* RGB versions for opacity control */
  --color-success-rgb: 15, 40, 100;
  --color-error-rgb: 230, 25, 55;
  --color-warning-rgb: 244, 145, 0;
  --color-info-rgb: 10, 180, 255;

  /* Typography */
  --font-family-base: "FKGroteskNeue", "Geist", "Inter", -apple-system,
    BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-family-mono: "Berkeley Mono", ui-monospace, SFMono-Regular, Menlo,
    Monaco, Consolas, monospace;
  --font-size-xs: 11px;
  --font-size-sm: 12px;
  --font-size-base: 14px;
  --font-size-md: 14px;
  --font-size-lg: 16px;
  --font-size-xl: 18px;
  --font-size-2xl: 20px;
  --font-size-3xl: 24px;
  --font-size-4xl: 30px;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 550;
  --font-weight-bold: 600;
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --letter-spacing-tight: -0.01em;

  /* Spacing */
  --space-0: 0;
  --space-1: 1px;
  --space-2: 2px;
  --space-4: 4px;
  --space-6: 6px;
  --space-8: 8px;
  --space-10: 10px;
  --space-12: 12px;
  --space-16: 16px;
  --space-20: 20px;
  --space-24: 24px;
  --space-32: 32px;

  /* Border Radius */
  --radius-sm: 6px;
  --radius-base: 8px;
  --radius-md: 10px;
  --radius-lg: 12px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.02);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.02);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.04),
    0 2px 4px -1px rgba(0, 0, 0, 0.02);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.04),
    0 4px 6px -2px rgba(0, 0, 0, 0.02);
  --shadow-inset-sm: inset 0 1px 0 rgba(255, 255, 255, 0.15),
    inset 0 -1px 0 rgba(0, 0, 0, 0.03);

  /* Animation */
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --ease-standard: cubic-bezier(0.16, 1, 0.3, 1);

  /* Layout */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
}

/* Dark mode colors */
@media (prefers-color-scheme: dark) {
  :root {
    --color-background: #1f2121;
    --color-surface: #262828;
    --color-text: var(--weiss);
    --color-text-secondary: rgba(255, 255, 255, 0.7);
    --color-primary: var(--bochum-cyan);
    --color-primary-hover: #0899da;
    --color-primary-active: #067bb3;
    --color-secondary: rgba(174, 192, 202, 0.12);
    --color-secondary-hover: rgba(174, 192, 202, 0.22);
    --color-secondary-active: rgba(174, 192, 202, 0.30);
    --color-border: #4d5962;
    --color-error: var(--bochum-rot);
    --color-success: var(--bochum-blau);
    --color-warning: #ff9f1c;
    --color-info: var(--bochum-petrol);
    --color-focus-ring: rgba(10, 180, 255, 0.45);
    --color-btn-primary-text: var(--weiss);
    --color-card-border: #3a4349;
    --color-card-border-inner: #3a4349;
    --shadow-inset-sm: inset 0 1px 0 rgba(255, 255, 255, 0.1),
      inset 0 -1px 0 rgba(0, 0, 0, 0.15);
    --color-border-secondary: #4d5962;
    --color-select-caret: var(--weiss);

    /* RGB versions for dark mode */
    --color-success-rgb: 15, 40, 100;
    --color-error-rgb: 230, 25, 55;
    --color-warning-rgb: 255, 159, 28;
    --color-info-rgb: 23, 175, 141;
  }
}

/* Data attribute for manual theme switching */
[data-color-scheme="dark"] {
  --color-background: #1f2121;
  --color-surface: #262828;
  --color-text: var(--weiss);
  --color-text-secondary: rgba(255, 255, 255, 0.7);
  --color-primary: var(--bochum-cyan);
  --color-primary-hover: #0899da;
  --color-primary-active: #067bb3;
  --color-secondary: rgba(174, 192, 202, 0.12);
  --color-secondary-hover: rgba(174, 192, 202, 0.22);
  --color-secondary-active: rgba(174, 192, 202, 0.30);
  --color-border: #4d5962;
  --color-error: var(--bochum-rot);
  --color-success: var(--bochum-gruen);
  --color-warning: #ff9f1c;
  --color-info: var(--tuerkis);
  --color-focus-ring: rgba(10, 180, 255, 0.45);
  --color-btn-primary-text: var(--weiss);
  --color-card-border: #3a4349;
  --color-card-border-inner: #3a4349;
  --shadow-inset-sm: inset 0 1px 0 rgba(255, 255, 255, 0.1),
    inset 0 -1px 0 rgba(0, 0, 0, 0.15);
  --color-border-secondary: #4d5962;
  --color-select-caret: var(--weiss);

  /* RGB versions for dark mode */
  --color-success-rgb: 118, 183, 41;
  --color-error-rgb: 230, 25, 55;
  --color-warning-rgb: 255, 159, 28;
  --color-info-rgb: 23, 175, 141;
}

[data-color-scheme="light"] {
  --color-background: var(--weiss);
  --color-surface: #fcfcf9;
  --color-text: var(--bochum-blau);
  --color-text-secondary: #6c767d;
  --color-primary: var(--bochum-blau);
  --color-primary-hover: #0a1e4a;
  --color-primary-active: #061530;
  --color-secondary: rgba(174, 192, 202, 0.15);
  --color-secondary-hover: rgba(174, 192, 202, 0.25);
  --color-secondary-active: rgba(174, 192, 202, 0.35);
  --color-border: var(--bochum-grau);
  --color-btn-primary-text: var(--weiss);
  --color-card-border: #e3e7ea;
  --color-card-border-inner: #e3e7ea;
  --color-error: var(--bochum-rot);
  --color-success: var(--bochum-gruen);
  --color-warning: var(--orange);
  --color-info: var(--bochum-cyan);
  --color-focus-ring: rgba(15, 40, 100, 0.4);

  /* RGB versions for light mode */
  --color-success-rgb: 118, 183, 41;
  --color-error-rgb: 230, 25, 55;
  --color-warning-rgb: 244, 145, 0;
  --color-info-rgb: 10, 180, 255;
}

/* Base styles */
html {
  font-size: var(--font-size-base);
  font-family: var(--font-family-base);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
}

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

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
  color: var(--color-text);
  letter-spacing: var(--letter-spacing-tight);
}

h1 {
  font-size: var(--font-size-4xl);
}
h2 {
  font-size: var(--font-size-3xl);
}
h3 {
  font-size: var(--font-size-2xl);
}
h4 {
  font-size: var(--font-size-xl);
}
h5 {
  font-size: var(--font-size-lg);
}
h6 {
  font-size: var(--font-size-md);
}

p {
  margin: 0 0 var(--space-16) 0;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-standard);
}

a:hover {
  color: var(--color-primary-hover);
}

code,
pre {
  font-family: var(--font-family-mono);
  font-size: calc(var(--font-size-base) * 0.95);
  background-color: var(--color-secondary);
  border-radius: var(--radius-sm);
}

code {
  padding: var(--space-1) var(--space-4);
}

pre {
  padding: var(--space-16);
  margin: var(--space-16) 0;
  overflow: auto;
  border: 1px solid var(--color-border);
}

pre code {
  background: none;
  padding: 0;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-8) var(--space-16);
  border-radius: var(--radius-base);
  font-size: var(--font-size-base);
  font-weight: 500;
  line-height: 1.5;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-standard);
  border: none;
  text-decoration: none;
  position: relative;
}

.btn:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-btn-primary-text);
}

.btn--primary:hover {
  background: var(--color-primary-hover);
}

.btn--primary:active {
  background: var(--color-primary-active);
}

.btn--secondary {
  background: var(--color-secondary);
  color: var(--color-text);
}

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

.btn--secondary:active {
  background: var(--color-secondary-active);
}

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

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

.btn--sm {
  padding: var(--space-4) var(--space-12);
  font-size: var(--font-size-sm);
  border-radius: var(--radius-sm);
}

.btn--lg {
  padding: var(--space-10) var(--space-20);
  font-size: var(--font-size-lg);
  border-radius: var(--radius-md);
}

.btn--full-width {
  width: 100%;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Form elements */
.form-control {
  display: block;
  width: 100%;
  padding: var(--space-8) var(--space-12);
  font-size: var(--font-size-md);
  line-height: 1.5;
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  transition: border-color var(--duration-fast) var(--ease-standard),
    box-shadow var(--duration-fast) var(--ease-standard);
}

textarea.form-control {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
}

select.form-control {
  padding: var(--space-8) var(--space-12);
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-image: var(--select-caret-light);
  background-repeat: no-repeat;
  background-position: right var(--space-12) center;
  background-size: 16px;
  padding-right: var(--space-32);
}

/* Add a dark mode specific caret */
@media (prefers-color-scheme: dark) {
  select.form-control {
    background-image: var(--select-caret-dark);
  }
}

/* Also handle data-color-scheme */
[data-color-scheme="dark"] select.form-control {
  background-image: var(--select-caret-dark);
}

[data-color-scheme="light"] select.form-control {
  background-image: var(--select-caret-light);
}

.form-control:focus {
  border-color: var(--color-primary);
  outline: var(--focus-outline);
}

.form-label {
  display: block;
  margin-bottom: var(--space-8);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
}

.form-group {
  margin-bottom: var(--space-16);
}

/* Card component */
.card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: box-shadow var(--duration-normal) var(--ease-standard);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card__body {
  padding: var(--space-16);
}

.card__header,
.card__footer {
  padding: var(--space-16);
  border-bottom: 1px solid var(--color-card-border-inner);
}

/* Status indicators */
.status {
  display: inline-flex;
  align-items: center;
  padding: var(--space-6) var(--space-12);
  border-radius: var(--radius-full);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
}

.status--success {
  background-color: rgba(
    var(--color-success-rgb, 15, 40, 100),
    var(--status-bg-opacity)
  );
  color: var(--color-success);
  border: 1px solid
    rgba(var(--color-success-rgb, 15, 40, 100), var(--status-border-opacity));
}

.status--error {
  background-color: rgba(
    var(--color-error-rgb, 230, 25, 55),
    var(--status-bg-opacity)
  );
  color: var(--color-error);
  border: 1px solid
    rgba(var(--color-error-rgb, 230, 25, 55), var(--status-border-opacity));
}

.status--warning {
  background-color: rgba(
    var(--color-warning-rgb, 244, 145, 0),
    var(--status-bg-opacity)
  );
  color: var(--color-warning);
  border: 1px solid
    rgba(var(--color-warning-rgb, 244, 145, 0), var(--status-border-opacity));
}

.status--info {
  background-color: rgba(
    var(--color-info-rgb, 10, 180, 255),
    var(--status-bg-opacity)
  );
  color: var(--color-info);
  border: 1px solid
    rgba(var(--color-info-rgb, 10, 180, 255), var(--status-border-opacity));
}

/* Container layout */
.container {
  width: 100%;
  margin-right: auto;
  margin-left: auto;
  padding-right: var(--space-16);
  padding-left: var(--space-16);
}

@media (min-width: 640px) {
  .container {
    max-width: var(--container-sm);
  }
}
@media (min-width: 768px) {
  .container {
    max-width: var(--container-md);
  }
}
@media (min-width: 1024px) {
  .container {
    max-width: var(--container-lg);
  }
}
@media (min-width: 1280px) {
  .container {
    max-width: var(--container-xl);
  }
}

/* Utility classes */
.flex {
  display: flex;
}
.flex-col {
  flex-direction: column;
}
.items-center {
  align-items: center;
}
.justify-center {
  justify-content: center;
}
.justify-between {
  justify-content: space-between;
}
.gap-4 {
  gap: var(--space-4);
}
.gap-8 {
  gap: var(--space-8);
}
.gap-16 {
  gap: var(--space-16);
}

.m-0 {
  margin: 0;
}
.mt-8 {
  margin-top: var(--space-8);
}
.mb-8 {
  margin-bottom: var(--space-8);
}
.mx-8 {
  margin-left: var(--space-8);
  margin-right: var(--space-8);
}
.my-8 {
  margin-top: var(--space-8);
  margin-bottom: var(--space-8);
}

.p-0 {
  padding: 0;
}
.py-8 {
  padding-top: var(--space-8);
  padding-bottom: var(--space-8);
}
.px-8 {
  padding-left: var(--space-8);
  padding-right: var(--space-8);
}
.py-16 {
  padding-top: var(--space-16);
  padding-bottom: var(--space-16);
}
.px-16 {
  padding-left: var(--space-16);
  padding-right: var(--space-16);
}

.block {
  display: block;
}
.hidden {
  display: none;
}

/* Accessibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

:focus-visible {
  outline: var(--focus-outline);
  outline-offset: 2px;
}

/* Dark mode specifics */
[data-color-scheme="dark"] .btn--outline {
  border: 1px solid var(--color-border-secondary);
}

@font-face {
  font-family: 'FKGroteskNeue';
  src: url('https://r2cdn.perplexity.ai/fonts/FKGroteskNeue.woff2')
    format('woff2');
}

/* Dashboard-specific styles */
.dashboard-container {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--color-background);
}

.dashboard-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-16) 0;
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-content {
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 0 var(--space-16);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.dashboard-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin: 0;
}

.header-controls {
  display: flex;
  gap: var(--space-8);
}

.refresh-icon,
.export-icon {
  margin-right: var(--space-4);
  font-size: var(--font-size-lg);
}

/* Navigation */
.dashboard-nav {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 0 var(--space-16);
}

.nav-tabs {
  max-width: var(--container-xl);
  margin: 0 auto;
  display: flex;
  gap: var(--space-4);
}

.tab-button {
  padding: var(--space-12) var(--space-16);
  border: none;
  background: transparent;
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all var(--duration-normal) var(--ease-standard);
}

.tab-button:hover {
  color: var(--color-text);
  background: var(--color-secondary);
}

.tab-button.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* Main layout */
.dashboard-main {
  flex: 1;
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: var(--space-24);
  max-width: var(--container-xl);
  margin: 0 var(--space-32);
  padding: var(--space-24) var(--space-16);
  align-self: center;
}

/* Sidebar */
.dashboard-sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--space-20);
}

.sidebar-section {
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  padding: var(--space-16);
}

.sidebar-section h3 {
  margin: 0 0 var(--space-12) 0;
  font-size: var(--font-size-lg);
  color: var(--color-text);
}

.direction-filters {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

.filter-checkbox {
  display: flex;
  align-items: center;
  cursor: pointer;
  position: relative;
}

.filter-checkbox input[type="checkbox"] {
  opacity: 0;
  position: absolute;
}

.checkmark {
  width: 18px;
  height: 18px;
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  margin-right: var(--space-8);
  position: relative;
  transition: all var(--duration-normal) var(--ease-standard);
}

.filter-checkbox input[type="checkbox"]:checked + .checkmark {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.filter-checkbox input[type="checkbox"]:checked + .checkmark::after {
  content: '✓';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: var(--color-btn-primary-text);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
}

/* Stats grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
}

.stat-card {
  background: var(--color-background);
  border: 1px solid var(--color-card-border-inner);
  border-radius: var(--radius-base);
  padding: var(--space-12);
  text-align: center;
}

.stat-value {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* Status indicators */
.status-indicators {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

.status-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* Content area */
.dashboard-content {
  position: relative;
  min-height: 600px;
  width: auto;
}

.loading-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.9);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 50;
}

.loading-overlay.hidden {
  display: none;
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--color-secondary);
  border-top: 4px solid var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: var(--space-16);
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.loading-text {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
}

.error-message {
  background: var(--color-surface);
  border: 1px solid var(--color-error);
  border-radius: var(--radius-lg);
  padding: var(--space-24);
  text-align: center;
  margin: var(--space-32) auto;
  max-width: 500px;
}

.error-content h3 {
  color: var(--color-error);
  margin-bottom: var(--space-12);
}

.error-content p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-16);
}

/* Tab content */
.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

/* Charts grid */
.charts-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-20);
}

.chart-container {
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  padding: var(--space-16);
  box-shadow: var(--shadow-sm);
  width: auto;
}

.chart-container.chart-wide {
  grid-column: 1 / -1;
  width: auto;
}

.chart-container.chart-full {
  grid-column: 1 / -1;
}

.chart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-16);
  padding-bottom: var(--space-8);
  border-bottom: 1px solid var(--color-card-border-inner);
}

.chart-header h3 {
  font-size: var(--font-size-lg);
  color: var(--color-text);
  margin: 0;
}

.chart-controls {
  display: flex;
  gap: var(--space-8);
}

.chart-period {
  min-width: 120px;
  padding: var(--space-4) var(--space-8);
  font-size: var(--font-size-sm);
}

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

.chart-wrapper canvas {
  max-height: 300px;
}

/* Analysis grid */
.analysis-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-20);
  margin-bottom: var(--space-20);
}

.analysis-card {
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  padding: var(--space-16);
  box-shadow: var(--shadow-sm);
}

.analysis-card h3 {
  margin: 0 0 var(--space-16) 0;
  font-size: var(--font-size-lg);
  color: var(--color-text);
  padding-bottom: var(--space-8);
  border-bottom: 1px solid var(--color-card-border-inner);
}

.analysis-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
}

.analysis-metric {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.metric-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.metric-value {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-medium);
  color: var(--color-primary);
}

/* Responsive design */
@media (max-width: 1024px) {
  .dashboard-main {
    grid-template-columns: 250px 1fr;
    gap: var(--space-16);
  }
  
  .charts-grid {
    grid-template-columns: 1fr;
  }
  
  .analysis-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .dashboard-main {
    grid-template-columns: 1fr;
    gap: var(--space-16);
  }
  
  .header-content {
    flex-direction: column;
    gap: var(--space-12);
    text-align: center;
  }
  
  .dashboard-title {
    font-size: var(--font-size-xl);
  }
  
  .nav-tabs {
    overflow-x: auto;
    white-space: nowrap;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .chart-wrapper {
    height: 250px;
  }
}

@media (max-width: 480px) {
  .dashboard-main {
    padding: var(--space-16) var(--space-8);
  }
  
  .header-content {
    padding: 0 var(--space-8);
  }
  
  .dashboard-nav {
    padding: 0 var(--space-8);
  }
  
  .header-controls {
    flex-direction: column;
    width: 100%;
  }
  
  .chart-wrapper {
    height: 200px;
  }
}

/* Enhanced animations and transitions */
.chart-container {
  transition: transform var(--duration-normal) var(--ease-standard),
              box-shadow var(--duration-normal) var(--ease-standard);
}

.chart-container:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.stat-card {
  transition: transform var(--duration-normal) var(--ease-standard),
              background-color var(--duration-normal) var(--ease-standard);
}

.stat-card:hover {
  transform: translateY(-1px);
  background-color: var(--color-secondary);
}

/* Smooth scrolling */
html {
  scroll-behavior: smooth;
}

/* Focus states for accessibility */
.tab-button:focus-visible {
  outline: var(--focus-outline);
  outline-offset: -2px;
}

.filter-checkbox:focus-within .checkmark {
  box-shadow: var(--focus-ring);
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-primary);
}