:root {
  /* Primitive Color Tokens */
  --color-white: rgba(255, 255, 255, 1);
  --color-black: rgba(0, 0, 0, 1);
  --color-cream-50: rgba(252, 252, 249, 1);
  --color-cream-100: rgba(255, 255, 253, 1);
  --color-gray-200: rgba(245, 245, 245, 1);
  --color-gray-300: rgba(167, 169, 169, 1);
  --color-gray-400: rgba(119, 124, 124, 1);
  --color-slate-500: rgba(98, 108, 113, 1);
  --color-brown-600: rgba(94, 82, 64, 1);
  --color-charcoal-700: rgba(31, 33, 33, 1);
  --color-charcoal-800: rgba(38, 40, 40, 1);
  --color-slate-900: rgba(19, 52, 59, 1);
  --color-teal-300: rgba(50, 184, 198, 1);
  --color-teal-400: rgba(45, 166, 178, 1);
  --color-teal-500: rgba(33, 128, 141, 1);
  --color-teal-600: rgba(29, 116, 128, 1);
  --color-teal-700: rgba(26, 104, 115, 1);
  --color-teal-800: rgba(41, 150, 161, 1);
  --color-red-400: rgba(255, 84, 89, 1);
  --color-red-500: rgba(192, 21, 47, 1);
  --color-orange-400: rgba(230, 129, 97, 1);
  --color-orange-500: rgba(168, 75, 47, 1);

  /* RGB versions for opacity control */
  --color-brown-600-rgb: 94, 82, 64;
  --color-teal-500-rgb: 33, 128, 141;
  --color-slate-900-rgb: 19, 52, 59;
  --color-slate-500-rgb: 98, 108, 113;
  --color-red-500-rgb: 192, 21, 47;
  --color-red-400-rgb: 255, 84, 89;
  --color-orange-500-rgb: 168, 75, 47;
  --color-orange-400-rgb: 230, 129, 97;

  /* Background color tokens (Light Mode) */
  --color-bg-1: rgba(59, 130, 246, 0.08);
  --color-bg-2: rgba(245, 158, 11, 0.08);
  --color-bg-3: rgba(34, 197, 94, 0.08);
  --color-bg-4: rgba(239, 68, 68, 0.08);
  --color-bg-5: rgba(147, 51, 234, 0.08);
  --color-bg-6: rgba(249, 115, 22, 0.08);
  --color-bg-7: rgba(236, 72, 153, 0.08);
  --color-bg-8: rgba(6, 182, 212, 0.08);

  /* Semantic Color Tokens (Light Mode) */
  --color-background: var(--color-cream-50);
  --color-surface: var(--color-cream-100);
  --color-text: var(--color-slate-900);
  --color-text-secondary: var(--color-slate-500);
  --color-primary: var(--color-teal-500);
  --color-primary-hover: var(--color-teal-600);
  --color-primary-active: var(--color-teal-700);
  --color-secondary: rgba(var(--color-brown-600-rgb), 0.12);
  --color-secondary-hover: rgba(var(--color-brown-600-rgb), 0.2);
  --color-secondary-active: rgba(var(--color-brown-600-rgb), 0.25);
  --color-border: rgba(var(--color-brown-600-rgb), 0.2);
  --color-btn-primary-text: var(--color-cream-50);
  --color-card-border: rgba(var(--color-brown-600-rgb), 0.12);
  --color-card-border-inner: rgba(var(--color-brown-600-rgb), 0.12);
  --color-error: var(--color-red-500);
  --color-success: var(--color-teal-500);
  --color-warning: var(--color-orange-500);
  --color-info: var(--color-slate-500);
  --color-focus-ring: rgba(var(--color-teal-500-rgb), 0.4);
  --color-select-caret: rgba(var(--color-slate-900-rgb), 0.8);

  /* 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='%23134252' 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='%23f5f5f5' 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: 33, 128, 141;
  --color-error-rgb: 192, 21, 47;
  --color-warning-rgb: 168, 75, 47;
  --color-info-rgb: 98, 108, 113;

  /* 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-gray-400-rgb: 119, 124, 124;
    --color-teal-300-rgb: 50, 184, 198;
    --color-gray-300-rgb: 167, 169, 169;
    --color-gray-200-rgb: 245, 245, 245;

    --color-bg-1: rgba(29, 78, 216, 0.15);
    --color-bg-2: rgba(180, 83, 9, 0.15);
    --color-bg-3: rgba(21, 128, 61, 0.15);
    --color-bg-4: rgba(185, 28, 28, 0.15);
    --color-bg-5: rgba(107, 33, 168, 0.15);
    --color-bg-6: rgba(194, 65, 12, 0.15);
    --color-bg-7: rgba(190, 24, 93, 0.15);
    --color-bg-8: rgba(8, 145, 178, 0.15);

    --color-background: var(--color-charcoal-700);
    --color-surface: var(--color-charcoal-800);
    --color-text: var(--color-gray-200);
    --color-text-secondary: rgba(var(--color-gray-300-rgb), 0.7);
    --color-primary: var(--color-teal-300);
    --color-primary-hover: var(--color-teal-400);
    --color-primary-active: var(--color-teal-800);
    --color-secondary: rgba(var(--color-gray-400-rgb), 0.15);
    --color-secondary-hover: rgba(var(--color-gray-400-rgb), 0.25);
    --color-secondary-active: rgba(var(--color-gray-400-rgb), 0.3);
    --color-border: rgba(var(--color-gray-400-rgb), 0.3);
    --color-error: var(--color-red-400);
    --color-success: var(--color-teal-300);
    --color-warning: var(--color-orange-400);
    --color-info: var(--color-gray-300);
    --color-focus-ring: rgba(var(--color-teal-300-rgb), 0.4);
    --color-btn-primary-text: var(--color-slate-900);
    --color-card-border: rgba(var(--color-gray-400-rgb), 0.2);
    --color-card-border-inner: rgba(var(--color-gray-400-rgb), 0.15);
    --shadow-inset-sm: inset 0 1px 0 rgba(255, 255, 255, 0.1), inset 0 -1px 0 rgba(0, 0, 0, 0.15);
    --button-border-secondary: rgba(var(--color-gray-400-rgb), 0.2);
    --color-border-secondary: rgba(var(--color-gray-400-rgb), 0.2);
    --color-select-caret: rgba(var(--color-gray-200-rgb), 0.8);

    --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='%23134252' 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='%23f5f5f5' 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");

    --color-success-rgb: var(--color-teal-300-rgb);
    --color-error-rgb: var(--color-red-400-rgb);
    --color-warning-rgb: var(--color-orange-400-rgb);
    --color-info-rgb: var(--color-gray-300-rgb);
  }
}

/* Manual theme switching */
[data-color-scheme="dark"] {
  --color-gray-400-rgb: 119, 124, 124;
  --color-teal-300-rgb: 50, 184, 198;
  --color-gray-300-rgb: 167, 169, 169;
  --color-gray-200-rgb: 245, 245, 245;

  --color-bg-1: rgba(29, 78, 216, 0.15);
  --color-bg-2: rgba(180, 83, 9, 0.15);
  --color-bg-3: rgba(21, 128, 61, 0.15);
  --color-bg-4: rgba(185, 28, 28, 0.15);
  --color-bg-5: rgba(107, 33, 168, 0.15);
  --color-bg-6: rgba(194, 65, 12, 0.15);
  --color-bg-7: rgba(190, 24, 93, 0.15);
  --color-bg-8: rgba(8, 145, 178, 0.15);

  --color-background: var(--color-charcoal-700);
  --color-surface: var(--color-charcoal-800);
  --color-text: var(--color-gray-200);
  --color-text-secondary: rgba(var(--color-gray-300-rgb), 0.7);
  --color-primary: var(--color-teal-300);
  --color-primary-hover: var(--color-teal-400);
  --color-primary-active: var(--color-teal-800);
  --color-secondary: rgba(var(--color-gray-400-rgb), 0.15);
  --color-secondary-hover: rgba(var(--color-gray-400-rgb), 0.25);
  --color-secondary-active: rgba(var(--color-gray-400-rgb), 0.3);
  --color-border: rgba(var(--color-gray-400-rgb), 0.3);
  --color-error: var(--color-red-400);
  --color-success: var(--color-teal-300);
  --color-warning: var(--color-orange-400);
  --color-info: var(--color-gray-300);
  --color-focus-ring: rgba(var(--color-teal-300-rgb), 0.4);
  --color-btn-primary-text: var(--color-slate-900);
  --color-card-border: rgba(var(--color-gray-400-rgb), 0.15);
  --color-card-border-inner: rgba(var(--color-gray-400-rgb), 0.15);
  --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: rgba(var(--color-gray-400-rgb), 0.2);
  --color-select-caret: rgba(var(--color-gray-200-rgb), 0.8);

  --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='%23134252' 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='%23f5f5f5' 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");

  --color-success-rgb: var(--color-teal-300-rgb);
  --color-error-rgb: var(--color-red-400-rgb);
  --color-warning-rgb: var(--color-orange-400-rgb);
  --color-info-rgb: var(--color-gray-300-rgb);
}

[data-color-scheme="light"] {
  --color-brown-600-rgb: 94, 82, 64;
  --color-teal-500-rgb: 33, 128, 141;
  --color-slate-900-rgb: 19, 52, 59;

  --color-background: var(--color-cream-50);
  --color-surface: var(--color-cream-100);
  --color-text: var(--color-slate-900);
  --color-text-secondary: var(--color-slate-500);
  --color-primary: var(--color-teal-500);
  --color-primary-hover: var(--color-teal-600);
  --color-primary-active: var(--color-teal-700);
  --color-secondary: rgba(var(--color-brown-600-rgb), 0.12);
  --color-secondary-hover: rgba(var(--color-brown-600-rgb), 0.2);
  --color-secondary-active: rgba(var(--color-brown-600-rgb), 0.25);
  --color-border: rgba(var(--color-brown-600-rgb), 0.2);
  --color-btn-primary-text: var(--color-cream-50);
  --color-card-border: rgba(var(--color-brown-600-rgb), 0.12);
  --color-card-border-inner: rgba(var(--color-brown-600-rgb), 0.12);
  --color-error: var(--color-red-500);
  --color-success: var(--color-teal-500);
  --color-warning: var(--color-orange-500);
  --color-info: var(--color-slate-500);
  --color-focus-ring: rgba(var(--color-teal-500-rgb), 0.4);

  --color-success-rgb: var(--color-teal-500-rgb);
  --color-error-rgb: var(--color-red-500-rgb);
  --color-warning-rgb: var(--color-orange-500-rgb);
  --color-info-rgb: var(--color-slate-500-rgb);
}

/* 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; }
.muted-copy { color: var(--color-text-secondary); font-size: var(--font-size-sm); margin-top: var(--space-4); margin-bottom: var(--space-16); }

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);
}
@media (prefers-color-scheme: dark) {
  select.form-control { background-image: var(--select-caret-dark); }
}
[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 */
.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, 33,128,141), var(--status-bg-opacity));
  color: var(--color-success);
  border: 1px solid rgba(var(--color-success-rgb, 33,128,141), var(--status-border-opacity));
}
.status--error {
  background-color: rgba(var(--color-error-rgb, 192,21,47), var(--status-bg-opacity));
  color: var(--color-error);
  border: 1px solid rgba(var(--color-error-rgb, 192,21,47), var(--status-border-opacity));
}
.status--warning {
  background-color: rgba(var(--color-warning-rgb, 168,75,47), var(--status-bg-opacity));
  color: var(--color-warning);
  border: 1px solid rgba(var(--color-warning-rgb, 168,75,47), var(--status-border-opacity));
}
.status--info {
  background-color: rgba(var(--color-info-rgb, 98,108,113), var(--status-bg-opacity));
  color: var(--color-info);
  border: 1px solid rgba(var(--color-info-rgb, 98,108,113), 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');
}

/* App layout */
.app-container {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--color-background);
  overflow-x: hidden;
}

/* Header */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-16) var(--space-16) var(--space-12);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky; top: 0; z-index: 100;
}
.app-header h1 { font-size: var(--font-size-xl); font-weight: var(--font-weight-bold); color: var(--color-text); margin: 0; }
.upload-btn {
  display: flex; align-items: center; gap: var(--space-8);
  padding: var(--space-8) var(--space-16);
  background: var(--color-primary); color: var(--color-btn-primary-text);
  border: none; border-radius: var(--radius-base);
  font-size: var(--font-size-sm); font-weight: var(--font-weight-medium);
  cursor: pointer; transition: all var(--duration-fast) var(--ease-standard);
}
.upload-btn:hover { background: var(--color-primary-hover); transform: translateY(-1px); }
.upload-btn:active { background: var(--color-primary-active); transform: translateY(0); }

/* Main Content */
.main-content {
  flex: 1;
  padding: var(--space-16);
  padding-bottom: 80px; /* space for bottom nav */
  overflow-y: auto;
}

/* Tabs */
.tab-content { display: none; }
.tab-content.active { display: block; animation: fadeIn 0.3s ease-in-out; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px);} to { opacity: 1; transform: translateY(0);} }

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-24);
}
.stat-card {
  background: var(--color-bg-1);
  padding: var(--space-16);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border);
  text-align: center;
  transition: transform var(--duration-fast) var(--ease-standard);
}
.stat-card:hover { transform: translateY(-2px); }
.stat-value { font-size: var(--font-size-2xl); font-weight: var(--font-weight-bold); color: var(--color-primary); margin-bottom: var(--space-4); }
.stat-label { font-size: var(--font-size-sm); color: var(--color-text-secondary); font-weight: var(--font-weight-medium); }

/* Charts Section */
.charts-section { display: flex; flex-direction: column; gap: var(--space-16); }
.chart-container { width: 100%; margin: var(--space-16) 0; }

/* Filters */
.filters-section { margin-bottom: var(--space-20); }
.search-container { margin-bottom: var(--space-12); }
.filter-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-12); }
.filter-row--spaced { margin-top: var(--space-12); }

/* Lists */
.bonds-list, .etfs-list, .transactions-list {
  display: flex; flex-direction: column; gap: var(--space-12);
}

/* Cards */
.bond-card, .etf-card, .transaction-card {
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  padding: var(--space-16);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-standard);
}
.bond-card:hover, .etf-card:hover, .transaction-card:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}
.bond-card:active, .etf-card:active, .transaction-card:active { transform: translateY(0); }
.bond-header, .etf-header, .transaction-header {
  display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: var(--space-12);
}
.dashboard-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-4);
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  cursor: pointer;
  user-select: none;
}
.dashboard-toggle input[type="checkbox"] {
  width: 16px;
  height: 16px;
}
.bond-name, .etf-name, .transaction-type { font-weight: var(--font-weight-semibold); color: var(--color-text); font-size: var(--font-size-md); line-height: var(--line-height-tight); }
.bond-yield, .etf-price, .transaction-amount { font-weight: var(--font-weight-bold); color: var(--color-primary); font-size: var(--font-size-lg); }
.bond-details, .etf-details, .transaction-details { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-8); font-size: var(--font-size-sm); }
.detail-item { display: flex; flex-direction: column; }
.detail-label { color: var(--color-text-secondary); font-weight: var(--font-weight-medium); margin-bottom: var(--space-2); }
.detail-value { color: var(--color-text); font-weight: var(--font-weight-medium); }

/* Status Badges */
.status-badge { display: inline-flex; align-items: center; padding: var(--space-4) var(--space-8); border-radius: var(--radius-full); font-size: var(--font-size-xs); font-weight: var(--font-weight-medium); }
.status-badge--active { background: var(--color-bg-3); color: var(--color-success); }
.status-badge--matured { background: var(--color-bg-4); color: var(--color-error); }

/* Bottom Navigation */
.bottom-nav {
  position: fixed; bottom: 0; left: 0; right: 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  display: flex; justify-content: space-around;
  padding: var(--space-8) 0; z-index: 101;
}
.nav-item {
  display: flex; flex-direction: column; align-items: center; gap: var(--space-4);
  padding: var(--space-8); background: none; border: none; cursor: pointer;
  transition: all var(--duration-fast) var(--ease-standard); min-width: 60px;
}
.nav-item.active { color: var(--color-primary); }
.nav-item:not(.active) { color: var(--color-text-secondary); }
.nav-item:hover:not(.active) { color: var(--color-text); }
.nav-icon { font-size: 20px; }
.nav-label { font-size: var(--font-size-xs); font-weight: var(--font-weight-medium); }

/* Modal */
.modal {
  position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000; padding: var(--space-16);
}
.modal.hidden { display: none; }
.modal-content {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  width: 100%; max-width: 400px; max-height: 90vh; overflow-y: auto;
  box-shadow: var(--shadow-lg);
  animation: modalSlideIn 0.3s ease-out;
}
@keyframes modalSlideIn { from { opacity:0; transform: translateY(20px) scale(0.95);} to { opacity:1; transform: translateY(0) scale(1);} }
.modal-header { display: flex; justify-content: space-between; align-items: center; padding: var(--space-16); border-bottom: 1px solid var(--color-border); }
.modal-header h3 { margin: 0; font-size: var(--font-size-lg); color: var(--color-text); }
.modal-close { background: none; border: none; font-size: var(--font-size-2xl); color: var(--color-text-secondary); cursor: pointer; padding: var(--space-4); line-height: 1; }
.modal-close:hover { color: var(--color-text); }
.modal-body { padding: var(--space-16); }

/* Upload */
.upload-section { margin-bottom: var(--space-16); }
.upload-label {
  display: block; padding: var(--space-16);
  border: 2px dashed var(--color-border); border-radius: var(--radius-base);
  text-align: center; cursor: pointer;
  transition: all var(--duration-fast) var(--ease-standard);
  background: var(--color-bg-2);
}
.upload-label:hover { border-color: var(--color-primary); background: var(--color-bg-1); }
.upload-label input[type="file"] { display: none; }
.upload-text { display: block; font-weight: var(--font-weight-medium); color: var(--color-text); }

/* Loading Overlay */
.loading-overlay {
  position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  z-index: 2000;
}
.loading-overlay.hidden { display: none; }
.loading-spinner {
  width: 40px; height: 40px; border: 3px solid var(--color-border);
  border-top: 3px 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 { color: var(--color-text); font-weight: var(--font-weight-medium); }

/* Empty State */
.empty-state {
  display: none; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; padding: var(--space-32); min-height: 50vh;
}
.empty-state.active { display: flex; }
.empty-icon { font-size: 64px; margin-bottom: var(--space-16); opacity: 0.5; }
.empty-state h3 { margin-bottom: var(--space-8); color: var(--color-text); }
.empty-state p { color: var(--color-text-secondary); margin-bottom: var(--space-24); }

/* Bond Detail Content */
.bond-detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-16); margin-bottom: var(--space-20); }
.detail-section { background: var(--color-bg-1); padding: var(--space-12); border-radius: var(--radius-base); }
.detail-section h4 { margin-bottom: var(--space-8); color: var(--color-text); font-size: var(--font-size-sm); font-weight: var(--font-weight-semibold); }

/* Responsive adjustments */
@media (max-width: 375px) {
  .stats-grid { grid-template-columns: 1fr; }
  .filter-row { grid-template-columns: 1fr; }
  .bond-details, .etf-details, .transaction-details { grid-template-columns: 1fr; }
  .bond-detail-grid { grid-template-columns: 1fr; }
}

/* Touch-friendly adjustments */
@media (pointer: coarse) {
  .btn { min-height: 44px; }
  .nav-item { min-height: 50px; }
  .bond-card, .etf-card, .transaction-card { min-height: 100px; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* High contrast */
@media (prefers-contrast: high) {
  .bond-card, .etf-card, .transaction-card { border-width: 2px; }
  .stat-card { border-width: 2px; }
}

/* =========================
   TABLES (all modes)
   ========================= */

.table {
  width: 100%;
  border-collapse: collapse;
  table-layout: auto;
}
.table th, .table td {
  padding: .5rem .75rem;
  border-bottom: 1px solid #eee;
}
.table .num {
  text-align: right;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}
.table .total-row td {
  font-weight: 600;
  border-top: 2px solid #ddd;
}
.empty-table { padding: .75rem; color: #666; }

/* Optional numeric header alignment (2nd+ columns) */
.table th:nth-child(2),
.table th:nth-child(3),
.table th:nth-child(4),
.table th:nth-child(5) { text-align: right; }

/* Compact table utility */
.table--compact th, .table--compact td { padding: .35rem .5rem; }

/* Keep a real 4-column table even on mobile when you need it */
.table--no-cards {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
}
.table--no-cards th,
.table--no-cards td {
  padding: 6px 8px;
  border-bottom: 1px solid #eee;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}
.table--no-cards .num { text-align: right; font-variant-numeric: tabular-nums; }

/* Card-style transformation on small screens — EXCEPT when .table--no-cards is present */
@media (max-width: 480px) {
  .table:not(.table--no-cards) {
    border-collapse: separate;
    border-spacing: 0;
    table-layout: fixed;
    width: 100%;
  }
  .table:not(.table--no-cards) thead { display: none; }
.table:not(.table--no-cards) tr {
  display: block;
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-base);
    margin-bottom: 10px;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
  }
  .table:not(.table--no-cards) td {
    display: grid;
    grid-template-columns: 48% 52%;
    gap: 8px;
    padding: 10px 12px;
    border: none;
    align-items: center;
  }
  .table:not(.table--no-cards) td::before {
    content: attr(data-label);
    color: var(--color-text-secondary);
    font-weight: 500;
    text-align: left;
  }
  .table:not(.table--no-cards) .num {
    text-align: right;
    white-space: nowrap;
    font-variant-numeric: tabular-nums;
  }
  .table:not(.table--no-cards) .total-row { border-width: 2px; }
  .table:not(.table--no-cards) .total-row td { padding-top: 12px; padding-bottom: 12px; }

  /* Ensure .table--no-cards stays a true table on mobile */
  .table--no-cards thead { display: table-header-group !important; }
  .table--no-cards tbody { display: table-row-group !important; }
  .table--no-cards tr    { display: table-row !important; }
  .table--no-cards th,
  .table--no-cards td    { display: table-cell !important; }
}

/* Timeline */
.timeline {
  position: relative;
  padding-left: 18px;
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
}
.timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 4px;
  bottom: 4px;
  width: 2px;
  background: var(--color-border);
}
.timeline-year {
  position: relative;
  padding-left: 6px;
}
.timeline-marker {
  position: absolute;
  left: -12px;
  top: 4px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 2px solid var(--color-surface);
  box-shadow: 0 0 0 2px var(--color-bg-1);
}
.timeline-year-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-12);
  margin-bottom: var(--space-8);
  padding: var(--space-4) 0;
}
.timeline-year-label {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  display: inline-flex;
  align-items: center;
  gap: var(--space-6);
}
.timeline-year-total {
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  font-variant-numeric: tabular-nums;
}
.timeline-items {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.timeline-months {
  display: flex;
  flex-direction: column;
  gap: var(--space-16);
  margin-top: var(--space-8);
}
.timeline-month {
  padding-left: var(--space-8);
  border-left: 2px solid var(--color-card-border);
}
.timeline-month-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-12);
  margin: 0 0 var(--space-8);
  padding: var(--space-4) 0;
}
.timeline-month-label {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  text-transform: capitalize;
}
.timeline-month-total {
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  font-variant-numeric: tabular-nums;
}
.timeline-item {
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-base);
  padding: var(--space-16);
  margin-bottom: 4px;
  box-shadow: var(--shadow-sm);
}
.timeline-item-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-8);
}
.timeline-header-right { display: inline-flex; align-items: center; gap: var(--space-8); }
.timeline-item-title {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
}
.timeline-amount {
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  font-variant-numeric: tabular-nums;
}
.timeline-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-8) var(--space-12);
  margin-top: var(--space-6);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}
.timeline-meta span { display: inline-flex; align-items: center; }
.timeline-item--past {
  opacity: 0.7;
  border-style: dashed;
  background: rgba(var(--color-info-rgb, 98,108,113), 0.08);
}
.timeline-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 9999px;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  background: var(--color-secondary);
  border: 1px solid var(--color-border);
}
.timeline-badge--past {
  color: var(--color-text);
  background: rgba(var(--color-warning-rgb, 168,75,47), 0.15);
  border-color: rgba(var(--color-warning-rgb, 168,75,47), 0.3);
}
.timeline-toggle,
.timeline-month-toggle {
  display: inline-flex;
  min-height: 32px;
  padding: 6px 12px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  background: var(--color-surface);
  cursor: pointer;
  touch-action: manipulation;
}
.timeline-toggle:active,
.timeline-month-toggle:active {
  background: var(--color-secondary);
}
.timeline-items.collapsed { display: none; }
.timeline-months.collapsed { display: none; }
.timeline-empty {
  padding: var(--space-12);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-base);
  color: var(--color-text-secondary);
  background: var(--color-secondary);
}
.timeline-year-actions,
.timeline-month-actions {
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
}