:root {
  /* SUPERLIST-INSPIRED PREMIUM PALETTE FOR BIM PROFESSIONALS */
  /* Pure foundation colors */
  --color-white: rgba(255, 255, 255, 1);
  --color-black: rgba(0, 0, 0, 1);

  /* Premium neutral scale */
  --color-neutral-50: rgba(250, 250, 250, 1);        /* Pure light */
  --color-neutral-100: rgba(245, 245, 245, 1);       /* Subtle background */
  --color-neutral-200: rgba(229, 229, 229, 1);       /* Light border */
  --color-neutral-300: rgba(212, 212, 212, 1);       /* Medium border */
  --color-neutral-400: rgba(163, 163, 163, 1);       /* Placeholder text */
  --color-neutral-500: rgba(115, 115, 115, 1);       /* Secondary text */
  --color-neutral-600: rgba(82, 82, 82, 1);          /* Primary text light */
  --color-neutral-700: rgba(64, 64, 64, 1);          /* Primary text */
  --color-neutral-800: rgba(38, 38, 38, 1);          /* Heading text */
  --color-neutral-900: rgba(23, 23, 23, 1);          /* Pure dark */

  /* Premium BIM brand colors */
  --color-primary-50: rgba(240, 249, 255, 1);        /* Primary tint */
  --color-primary-100: rgba(224, 242, 254, 1);       /* Primary light */
  --color-primary-200: rgba(186, 230, 253, 1);       /* Primary lighter */
  --color-primary-300: rgba(125, 211, 252, 1);       /* Primary medium */
  --color-primary-400: rgba(56, 189, 248, 1);        /* Primary */
  --color-primary-500: rgba(14, 165, 233, 1);        /* Primary strong */
  --color-primary-600: rgba(2, 132, 199, 1);         /* Primary dark */
  --color-primary-700: rgba(3, 105, 161, 1);         /* Primary darker */
  --color-primary-800: rgba(7, 89, 133, 1);          /* Primary darkest */
  --color-primary-900: rgba(12, 74, 110, 1);         /* Primary deep */

  /* Premium accent colors for BIM categories */
  --color-accent-orange: rgba(251, 146, 60, 1);      /* Construction */
  --color-accent-green: rgba(34, 197, 94, 1);        /* Success/Active */
  --color-accent-purple: rgba(147, 51, 234, 1);      /* Premium feature */
  --color-accent-pink: rgba(236, 72, 153, 1);        /* Highlight */
  --color-accent-yellow: rgba(250, 204, 21, 1);      /* Warning */
  --color-accent-red: rgba(239, 68, 68, 1);          /* Error/Critical */

  /* Premium gradient colors */
  --color-gradient-start: rgba(99, 102, 241, 1);     /* Indigo */
  --color-gradient-middle: rgba(139, 92, 246, 1);    /* Violet */
  --color-gradient-end: rgba(219, 39, 119, 1);       /* Pink */

  /* RGB versions for opacity control */
  --color-neutral-500-rgb: 115, 115, 115;
  --color-neutral-600-rgb: 82, 82, 82;
  --color-neutral-700-rgb: 64, 64, 64;
  --color-neutral-800-rgb: 38, 38, 38;
  --color-primary-500-rgb: 14, 165, 233;
  --color-primary-600-rgb: 2, 132, 199;
  --color-accent-orange-rgb: 251, 146, 60;
  --color-accent-green-rgb: 34, 197, 94;
  --color-accent-red-rgb: 239, 68, 68;
  --color-gradient-start-rgb: 99, 102, 241;
  --color-gradient-middle-rgb: 139, 92, 246;
  --color-gradient-end-rgb: 219, 39, 119;

  /* Premium background tokens */
  --color-bg-primary: rgba(var(--color-primary-500-rgb), 0.05);
  --color-bg-accent: rgba(var(--color-accent-orange-rgb), 0.05);
  --color-bg-success: rgba(var(--color-accent-green-rgb), 0.05);
  --color-bg-error: rgba(var(--color-accent-red-rgb), 0.05);
  --color-bg-gradient: linear-gradient(135deg,
    rgba(var(--color-gradient-start-rgb), 0.1) 0%,
    rgba(var(--color-gradient-middle-rgb), 0.05) 50%,
    rgba(var(--color-gradient-end-rgb), 0.1) 100%);

  /* PREMIUM LIGHT MODE - Superlist-inspired */
  --color-background: var(--color-white);
  --color-surface: var(--color-white);
  --color-surface-elevated: var(--color-neutral-50);
  --color-text: var(--color-neutral-800);
  --color-text-secondary: var(--color-neutral-500);
  --color-text-tertiary: var(--color-neutral-400);
  --color-primary: var(--color-primary-500);
  --color-primary-hover: var(--color-primary-600);
  --color-primary-active: var(--color-primary-700);
  --color-secondary: var(--color-neutral-100);
  --color-secondary-hover: var(--color-neutral-200);
  --color-secondary-active: var(--color-neutral-300);
  --color-border: var(--color-neutral-200);
  --color-border-strong: var(--color-neutral-300);
  --color-btn-primary-text: var(--color-white);
  --color-card-border: var(--color-neutral-200);
  --color-error: var(--color-accent-red);
  --color-success: var(--color-accent-green);
  --color-warning: var(--color-accent-orange);
  --color-info: var(--color-primary-500);
  --color-focus-ring: rgba(var(--color-primary-500-rgb), 0.2);
  --color-select-caret: rgba(var(--color-neutral-600-rgb), 0.8);

  /* TECHNICAL DRAWING PATTERNS */
  --focus-ring: 0 0 0 2px var(--color-focus-ring);
  --focus-outline: 2px solid var(--color-primary);
  --technical-border: 1px solid var(--color-construction-line);
  --dimension-line: 1px dashed var(--color-dimension-blue);
  --construction-line: 1px dotted var(--color-construction-line);

  /* CAD-style select carets */
  --select-caret-light: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23254F99' stroke-width='2.5' 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='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23f1f5f9' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");

  /* Status color RGB versions */
  --color-success-rgb: var(--color-success-green-rgb);
  --color-error-rgb: var(--color-error-red-rgb);
  --color-warning-rgb: var(--color-safety-orange-rgb);
  --color-info-rgb: var(--color-steel-500-rgb);

  /* PREMIUM TYPOGRAPHY - Superlist-inspired */
  --font-family-base: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-family-display: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-family-mono: "SF Mono", ui-monospace, SFMono-Regular, "Roboto Mono", Menlo, Monaco, Consolas, monospace;

  /* Premium type scale */
  --font-size-xs: 12px;
  --font-size-sm: 14px;
  --font-size-base: 16px;
  --font-size-md: 18px;
  --font-size-lg: 20px;
  --font-size-xl: 24px;
  --font-size-2xl: 30px;
  --font-size-3xl: 36px;
  --font-size-4xl: 48px;
  --font-size-5xl: 60px;
  --font-size-6xl: 72px;

  /* Premium font weights */
  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;
  --font-weight-black: 900;

  /* Premium line heights */
  --line-height-none: 1;
  --line-height-tight: 1.25;
  --line-height-snug: 1.375;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.625;
  --line-height-loose: 2;
  /* Premium letter spacing */
  --letter-spacing-tighter: -0.05em;
  --letter-spacing-tight: -0.025em;
  --letter-spacing-normal: 0;
  --letter-spacing-wide: 0.025em;
  --letter-spacing-wider: 0.05em;
  --letter-spacing-widest: 0.1em;

  /* PREMIUM SPACING - Superlist-inspired */
  --space-0: 0;
  --space-px: 1px;
  --space-0_5: 2px;
  --space-1: 4px;
  --space-1_5: 6px;
  --space-2: 8px;
  --space-2_5: 10px;
  --space-3: 12px;
  --space-3_5: 14px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-7: 28px;
  --space-8: 32px;
  --space-9: 36px;
  --space-10: 40px;
  --space-11: 44px;
  --space-12: 48px;
  --space-14: 56px;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;
  --space-28: 112px;
  --space-32: 128px;
  --space-36: 144px;
  --space-40: 160px;
  --space-44: 176px;
  --space-48: 192px;
  --space-52: 208px;
  --space-56: 224px;
  --space-60: 240px;
  --space-64: 256px;
  --space-72: 288px;
  --space-80: 320px;
  --space-96: 384px;

  /* PREMIUM BORDER RADIUS - Modern, clean */
  --radius-none: 0;
  --radius-sm: 6px;
  --radius-base: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-2xl: 24px;
  --radius-3xl: 32px;
  --radius-full: 9999px;

  /* PREMIUM SHADOWS - Superlist-inspired */
  --shadow-none: none;
  --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1),
               0 1px 2px -1px rgba(0, 0, 0, 0.1);
  --shadow-base: 0 4px 6px -1px rgba(0, 0, 0, 0.1),
                 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1),
               0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1),
               0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.05);

  /* Premium gradient shadows */
  --shadow-gradient: 0 10px 25px -5px rgba(var(--color-gradient-start-rgb), 0.1),
                     0 8px 10px -6px rgba(var(--color-gradient-middle-rgb), 0.1);
  --shadow-primary: 0 10px 25px -5px rgba(var(--color-primary-500-rgb), 0.15),
                    0 8px 10px -6px rgba(var(--color-primary-500-rgb), 0.1);

  /* TECHNICAL ANIMATIONS - Precise, purposeful */
  --duration-instant: 0ms;
  --duration-fast: 120ms;
  --duration-normal: 200ms;
  --duration-slow: 300ms;
  --duration-slower: 500ms;
  --ease-standard: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-technical: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-blueprint: cubic-bezier(0.4, 0, 0.2, 1);

  /* PROFESSIONAL LAYOUT - CAD workspace inspired */
  --container-xs: 480px;
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
  --container-2xl: 1536px;
  --container-max: 1600px;

  /* Technical content widths */
  --content-narrow: 65ch;
  --content-wide: 85ch;
  --content-full: 100ch;
}

/* Dark mode colors */
@media (prefers-color-scheme: dark) {
  :root {
    /* RGB versions for opacity control (Dark Mode) */
    --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;

    /* Background color tokens (Dark Mode) */
    --color-bg-1: rgba(29, 78, 216, 0.15); /* Dark blue */
    --color-bg-2: rgba(180, 83, 9, 0.15); /* Dark yellow */
    --color-bg-3: rgba(21, 128, 61, 0.15); /* Dark green */
    --color-bg-4: rgba(185, 28, 28, 0.15); /* Dark red */
    --color-bg-5: rgba(107, 33, 168, 0.15); /* Dark purple */
    --color-bg-6: rgba(194, 65, 12, 0.15); /* Dark orange */
    --color-bg-7: rgba(190, 24, 93, 0.15); /* Dark pink */
    --color-bg-8: rgba(8, 145, 178, 0.15); /* Dark cyan */

    /* Semantic Color Tokens (Dark Mode) */
    --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);

    /* Common style patterns - updated for dark mode */
    --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 dark mode */
    --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 attribute for manual theme switching */
[data-color-scheme="dark"] {
  /* RGB versions for opacity control (dark mode) */
  --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;

  /* Colorful background palette - Dark Mode */
  --color-bg-1: rgba(29, 78, 216, 0.15); /* Dark blue */
  --color-bg-2: rgba(180, 83, 9, 0.15); /* Dark yellow */
  --color-bg-3: rgba(21, 128, 61, 0.15); /* Dark green */
  --color-bg-4: rgba(185, 28, 28, 0.15); /* Dark red */
  --color-bg-5: rgba(107, 33, 168, 0.15); /* Dark purple */
  --color-bg-6: rgba(194, 65, 12, 0.15); /* Dark orange */
  --color-bg-7: rgba(190, 24, 93, 0.15); /* Dark pink */
  --color-bg-8: rgba(8, 145, 178, 0.15); /* Dark cyan */

  /* Semantic Color Tokens (Dark Mode) */
  --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);

  /* Common style patterns - updated for dark mode */
  --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 dark mode */
  --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"] {
  /* RGB versions for opacity control (light mode) */
  --color-brown-600-rgb: 94, 82, 64;
  --color-teal-500-rgb: 33, 128, 141;
  --color-slate-900-rgb: 19, 52, 59;

  /* 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);

  /* RGB versions for light mode */
  --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-6) 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 - simplified with CSS variables */
.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));
}

/* Compact Container layout - Superlist style */
.container {
  width: 100%;
  margin-right: auto;
  margin-left: auto;
  padding-right: var(--space-8);
  padding-left: var(--space-8);
}

@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');
}

/* END PERPLEXITY DESIGN SYSTEM */
/* App-specific styles */
/* PROFESSIONAL APP CONTAINER - CAD Interface */
.app-container {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--color-background);
  position: relative;
}

/* Technical grid overlay for the entire app */
.app-container::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image:
    linear-gradient(rgba(var(--color-concrete-500-rgb), 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(var(--color-concrete-500-rgb), 0.02) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
  z-index: 0;
}

/* COMPACT MODERN HEADER - Premium gradient design */
.header {
  background: linear-gradient(135deg,
    #051937 0%,
    #004d7a 25%,
    #008793 50%,
    #00bf72 75%,
    #a8eb12 100%);
  color: var(--color-white);
  padding: clamp(var(--space-16), 3vw, var(--space-24)) 0;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;

  /* Premium animated gradient */
  background-size: 400% 400%;
  animation: gradientShift 20s ease infinite;
}

.header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(circle at 20% 80%, rgba(255, 255, 255, 0.15) 0%, transparent 60%),
    radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.1) 0%, transparent 60%),
    radial-gradient(circle at 40% 40%, rgba(255, 255, 255, 0.05) 0%, transparent 60%);
  pointer-events: none;
}

.header::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 98px,
      rgba(255, 255, 255, 0.03) 100px
    ),
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 98px,
      rgba(255, 255, 255, 0.03) 100px
    );
  pointer-events: none;
}

@keyframes gradientShift {
  0%, 100% {
    background-position: 0% 50%;
  }
  25% {
    background-position: 100% 0%;
  }
  50% {
    background-position: 100% 100%;
  }
  75% {
    background-position: 0% 100%;
  }
}



.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  z-index: 3;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 clamp(var(--space-16), 4vw, var(--space-32));
  gap: clamp(var(--space-16), 4vw, var(--space-48));
  width: 100%;
}

.header-text {
  flex: 1;
  max-width: 700px;
}

/* Compact modern brand kicker */
.brand-kicker {
  display: inline-flex;
  align-items: center;
  padding: var(--space-4) var(--space-12);
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-white);
  margin-bottom: var(--space-8);
  backdrop-filter: blur(10px);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
}

/* Compact modern title styling */
.app-title {
  font-family: var(--font-family-display);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: var(--font-weight-black);
  margin: 0 0 var(--space-6) 0;
  color: var(--color-white);
  line-height: 1.1;
  letter-spacing: -0.02em;
  text-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
  background: linear-gradient(135deg, #ffffff 0%, rgba(255, 255, 255, 0.9) 100%);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.app-subtitle {
  font-size: clamp(var(--font-size-sm), 1.5vw, var(--font-size-base));
  margin: 0;
  opacity: 0.95;
  font-weight: var(--font-weight-medium);
  line-height: var(--line-height-relaxed);
  color: rgba(255, 255, 255, 0.95);
  text-shadow: 0 2px 15px rgba(0, 0, 0, 0.2);
  max-width: 60ch;
}

/* Hide role lens and CTAs in header - they're available below */
.header .role-lens,
.header .hero-ctas {
  display: none;
}

/* Compact header stats */
.header-stats {
  display: flex;
  gap: var(--space-8);
  flex-wrap: wrap;
  margin-top: var(--space-8);
}

.stat-badge {
  background: rgba(255, 255, 255, 0.15);
  color: var(--color-white);
  padding: var(--space-4) var(--space-10);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: all 0.3s ease;
}

.stat-badge:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: translateY(-1px);
}

/* Compact modern header visual */
.header-visual {
  flex-shrink: 0;
  margin-left: var(--space-16);
  opacity: 0.9;
  transform: perspective(1000px) rotateY(-3deg);
  transition: transform 0.3s ease;
}

.header-visual:hover {
  transform: perspective(1000px) rotateY(0deg) scale(1.02);
}

.premium-graphic {
  width: clamp(200px, 25vw, 300px);
  height: auto;
  filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.2));
}

/* COMPACT MAIN CONTENT - True Superlist style */
.main-content {
  flex: 1;
  padding: var(--space-8) 0 var(--space-12);
  background-image: linear-gradient(to right top, #051937, #004d7a, #008793, #00bf72, #a8eb12);
  position: relative;
}

/* Enhanced Search Section */

/* Sticky search on small screens */
@media (max-width: 768px) {
  .search-section {
    position: sticky;
    top: 0;
    z-index: 50;
    background: linear-gradient(
      to bottom,
      var(--color-background) 80%,
      rgba(0,0,0,0) 100%
    );
    padding-top: var(--space-16);
    margin-bottom: var(--space-16);
  }
}

/* PREMIUM SEARCH SECTION - Superlist-inspired */
.search-section {
  margin-bottom: var(--space-16);
  padding: var(--space-16) 0;
  background: transparent;
  position: relative;
}

.search-container {
  max-width: 600px;
  margin: 0 auto;
  padding: 0 var(--space-6);
  position: relative;
}

.search-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius-xl);
  transition: all 0.3s ease;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.search-input-wrapper:focus-within {
  border-color: rgba(255, 255, 255, 0.5);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.25);
}

.search-icon {
  position: absolute;
  left: var(--space-5);
  color: rgba(255, 255, 255, 0.7);
  z-index: 2;
  transition: color 0.3s ease;
}

.search-input-wrapper:focus-within .search-icon {
  color: rgba(255, 255, 255, 0.9);
}

.search-input {
  width: 100%;
  padding: var(--space-4) var(--space-5) var(--space-4) var(--space-12);
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  border: none;
  border-radius: var(--radius-xl);
  background: transparent;
  color: white;
  outline: none;
}

.search-input::placeholder {
  color: rgba(255, 255, 255, 0.6);
  font-weight: var(--font-weight-normal);
}

.clear-search-btn {
  position: absolute;
  right: var(--space-12);
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.7);
  cursor: pointer;
  padding: var(--space-6);
  border-radius: var(--radius-sm);
  transition: all 0.3s ease;
  z-index: 2;
}

.clear-search-btn:hover {
  color: white;
  background-color: rgba(255, 255, 255, 0.2);
}

.search-suggestions {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  box-shadow: var(--shadow-lg);
  z-index: 10;
  max-height: 300px;
  overflow-y: auto;
  display: none;
}

.suggestion-item {
  padding: var(--space-12) var(--space-16);

  cursor: pointer;
  transition: background-color var(--duration-fast) var(--ease-standard);
  border-bottom: 1px solid var(--color-card-border-inner);
}

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

.suggestion-item:last-child {
  border-bottom: none;
}

/* Super Compact Filter Section - Minimal spacing */
.filter-section {
  margin-bottom: var(--space-6);
  padding: var(--space-8);
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.filter-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-6);
}
/* Distinctive hero + role lens */
/* Premium brand kicker - Superlist-inspired */
.brand-kicker {
  font-family: var(--font-family-base);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--letter-spacing-wide);
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--space-4);
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.brand-kicker::before {
  content: '';
  width: 6px;
  height: 6px;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 50%;
  flex-shrink: 0;
}
/* PREMIUM ROLE SELECTOR */
.role-lens {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin: var(--space-6) 0 var(--space-8);
}

.role-btn {
  font-family: var(--font-family-base);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.9);
  background: rgba(255, 255, 255, 0.1);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all 0.2s ease;
  letter-spacing: var(--letter-spacing-normal);
  backdrop-filter: blur(20px);
  white-space: nowrap;
}

.role-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-1px);
}

.role-btn.active {
  background: rgba(255, 255, 255, 0.95);
  color: var(--color-neutral-800);
  border-color: rgba(255, 255, 255, 0.95);
  font-weight: var(--font-weight-semibold);
  box-shadow: var(--shadow-sm);
}
/* PREMIUM CTA BUTTONS */
.hero-ctas {
  display: flex;
  gap: var(--space-4);
  margin: var(--space-8) 0 var(--space-6);
}

.btn--primary {
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid rgba(255, 255, 255, 0.95);
  color: var(--color-neutral-800);
  font-family: var(--font-family-base);
  font-weight: var(--font-weight-semibold);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-lg);
  transition: all 0.2s ease;
  box-shadow: var(--shadow-sm);
  letter-spacing: var(--letter-spacing-normal);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn--primary:hover {
  background: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  color: var(--color-neutral-800);
}

.btn--ghost {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--color-white);
  font-family: var(--font-family-base);
  font-weight: var(--font-weight-medium);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-lg);
  transition: all 0.2s ease;
  backdrop-filter: blur(20px);
  letter-spacing: var(--letter-spacing-normal);
}

.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-1px);
}
/* PREMIUM SEARCH HINT */
.search-hint {
  text-align: center;
  margin-top: var(--space-4);
}

.hint-text {
  font-family: var(--font-family-base);
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.7);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.hint-text kbd {
  font-family: var(--font-family-mono);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  background: var(--color-neutral-100);
  color: var(--color-neutral-600);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-base);
  border: 1px solid var(--color-neutral-200);
  box-shadow: var(--shadow-xs);
  margin: 0 var(--space-1);
}
/* Premium graphic animations are now handled in the main header-visual section */

/* Premium animation effects */
.premium-graphic .floating-cards rect {
  animation: floatCards 6s ease-in-out infinite;
}

.premium-graphic .floating-cards rect:nth-child(1) {
  animation-delay: 0s;
}

.premium-graphic .floating-cards rect:nth-child(2) {
  animation-delay: 0.5s;
}

.premium-graphic .floating-cards rect:nth-child(3) {
  animation-delay: 1s;
}

.premium-graphic .floating-cards rect:nth-child(4) {
  animation-delay: 1.5s;
}

.premium-graphic .floating-cards rect:nth-child(5) {
  animation-delay: 2s;
}

.premium-graphic .connections path {
  animation: connectionPulse 4s ease-in-out infinite;
}

.premium-graphic .dots circle {
  animation: dotFloat 3s ease-in-out infinite;
}

/* Keyframe animations */
@keyframes floatCards {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-8px);
  }
}

@keyframes connectionPulse {
  0%, 100% {
    opacity: 0.4;
  }
  50% {
    opacity: 0.8;
  }
}

@keyframes dotFloat {
  0%, 100% {
    transform: translateY(0px);
    opacity: 0.8;
  }
  50% {
    transform: translateY(-4px);
    opacity: 1;
  }
}

/* Responsive styles are now handled in the main responsive section */


.filter-title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  margin: 0;
  color: var(--color-text);
}

/* Premium graphic animations */
.hero-orbit{width:min(520px,42vw);height:auto}
.hero-orbit .edge{stroke-dasharray:6 14;animation:orbitDash 16s linear infinite}
@keyframes orbitDash{to{stroke-dashoffset:-1000}}


.filter-actions {
  display: flex;
  gap: var(--space-4);
  align-items: center;
}

.bookmark-toggle-btn {
  background: #008793;
  color: white;
  border: none;
  padding: var(--space-2) var(--space-6);
  border-radius: 50px;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  box-shadow: 0 1px 4px rgba(0, 135, 147, 0.15);
}

.bookmark-toggle-btn:hover {
  background: #00bf72;
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(0, 191, 114, 0.25);
}

.bookmark-toggle-btn.active {
  background: #a8eb12;
  color: #051937;
  box-shadow: 0 1px 6px rgba(168, 235, 18, 0.25);
}

.clear-filters-btn {
  background: #051937;
  border: none;
  color: white;
  padding: var(--space-2) var(--space-6);
  border-radius: 50px;
  font-size: var(--font-size-xs);
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 1px 4px rgba(5, 25, 55, 0.15);
}

.clear-filters-btn:hover {
  background: #004d7a;
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(0, 77, 122, 0.25);
}

/* Collapsible filters animation */
#filtersBody {
  transition: height 200ms var(--ease-standard);
}

.filter-group {
  margin-bottom: var(--space-6);
}

.filter-group:last-child {
  margin-bottom: 0;
}

.filter-group-title {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  margin: 0 0 var(--space-3) 0;
  color: var(--color-text);
}

.category-filters,
.complexity-filters,
.region-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.category-btn,
.complexity-btn,
.region-btn {
  background: #051937;
  border: none;
  color: white;
  padding: var(--space-2) var(--space-6);
  border-radius: 50px;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all 0.3s ease;
  white-space: nowrap;
  box-shadow: 0 1px 4px rgba(5, 25, 55, 0.15);
}

.category-btn:hover,
.complexity-btn:hover,
.region-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(5, 25, 55, 0.25);
}

.category-btn.active,
.complexity-btn.active,
.region-btn.active {
  background: #a8eb12;
  color: #051937;
  box-shadow: 0 1px 6px rgba(168, 235, 18, 0.25);
  transform: translateY(-1px);
}

.complexity-btn {
  background: #008793;
  box-shadow: 0 1px 4px rgba(0, 135, 147, 0.15);
}
.region-btn {
  background: #00bf72;
  box-shadow: 0 1px 4px rgba(0, 191, 114, 0.15);
}

/* Compact Results Section */
.results-section {
  margin-bottom: var(--space-8);
}

.results-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.results-info {
  display: flex;
  align-items: center;
  gap: var(--space-20);
}

.results-count {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
}

.view-controls {
  display: flex;
  gap: var(--space-4);
  background: var(--color-secondary);
  padding: var(--space-4);
  border-radius: var(--radius-base);
}

.view-btn {
  background: none;
  border: none;
  color: var(--color-text-secondary);
  padding: var(--space-6);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-standard);
}

.view-btn:hover {
  color: var(--color-text);
}

.view-btn.active {
  background: var(--color-surface);
  color: var(--color-primary);
  box-shadow: var(--shadow-xs);
}

/* Proper Terms Grid - Superlist style */
.terms-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
  gap: var(--space-6);
}

.terms-grid.list-view {
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

@media (max-width: 768px) {
  .terms-grid {
    grid-template-columns: 1fr;
  }
}

/* SUPERLIST-STYLE TERM CARDS */
.term-card {
  background: var(--color-white);
  border: 1px solid #e5e7eb;
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: all 0.15s ease;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  font-family: var(--font-family-base);
}

.term-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15), 0 4px 10px rgba(0, 0, 0, 0.1);
  border-color: #d1d5db;
}

.terms-grid.list-view .term-card {
  display: flex;
  padding: var(--space-5);
  align-items: flex-start;
  gap: var(--space-5);
}

.terms-grid.list-view .term-content {
  flex: 1;
}

.term-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: var(--space-4);
}

/* PREMIUM TERM STYLING */
.term-title {
  font-family: var(--font-family-display);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin: 0;
  line-height: var(--line-height-tight);
  flex: 1;
}

.term-badges {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-left: var(--space-5);
  flex-shrink: 0;
}

/* PREMIUM BADGES - Clean and modern */
.category-badge,
.complexity-badge {
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-family: var(--font-family-base);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  text-align: center;
  border: none;
}

.category-badge {
  background: var(--color-primary-100);
  color: var(--color-primary-700);
}

.complexity-badge {
  background: var(--color-neutral-100);
  color: var(--color-neutral-600);
}

.complexity-badge.basic {
  background: var(--color-accent-green);
  color: var(--color-white);
}

.complexity-badge.intermediate {
  background: var(--color-accent-orange);
  color: var(--color-white);
}

.complexity-badge.advanced {
  background: var(--color-accent-red);
  color: var(--color-white);
}

/* PREMIUM DEFINITION STYLING */
.term-definition {
  font-size: var(--font-size-base);
  line-height: var(--line-height-relaxed);
  color: #1a202c;
  margin-bottom: var(--space-5);
  font-weight: var(--font-weight-normal);
}

.term-explanation {
  font-size: var(--font-size-sm);
  line-height: var(--line-height-relaxed);
  color: #2d3748;
  margin: 0;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-neutral-200);
}

.term-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--space-5);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-card-border-inner);
}

.bookmark-btn {
  background: none;
  border: none;
  color: var(--color-text-secondary);
  cursor: pointer;
  padding: var(--space-4);
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast) var(--ease-standard);
}

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

.bookmark-btn.bookmarked {
  color: var(--color-warning);
}

.read-more-btn {
  background: #008793;
  color: white;
  border: none;
  padding: var(--space-3) var(--space-5);
  border-radius: 50px;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 135, 147, 0.3);
}

.read-more-btn:hover {
  background: #00bf72;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 191, 114, 0.4);
}

/* Modal Styles */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1000;
  display: flex;
  align-items: flex-start; /* Changed from center to flex-start */
  justify-content: center;
  padding: var(--space-20);
  padding-top: 5vh; /* Add some top spacing */
  overflow-y: auto; /* Allow scrolling if content is too tall */
  overscroll-behavior: contain; /* Prevent background scroll chaining on mobile */
}

.modal.hidden {
  display: none;
}

.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
}

.modal-content {
  position: relative;
  background: linear-gradient(to right top, #051937, #004d7a, #008793, #00bf72, #a8eb12);
  border-radius: 0;
  box-shadow: none;
  max-width: 1000px;
  width: 100%;
  max-height: 85vh; /* Reduced to leave more space for scrolling */
  overflow: hidden;
  display: flex;
  flex-direction: column;
  /* Dynamic sizing - let content determine height */
  height: fit-content;
  min-height: 300px; /* Smaller minimum for compact content */
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-8);
  border-bottom: none; /* Remove border line */
  background: transparent; /* Remove white background frame */
  backdrop-filter: blur(10px);
}

.modal-title-section {
  flex: 1;
}

.modal-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: #1a202c;
  margin: 0 0 var(--space-4) 0;
}

.modal-badges {
  display: flex;
  gap: var(--space-3);
}

.modal-actions {
  display: flex;
  gap: var(--space-8);
}

.action-btn {
  background: #051937;
  border: none;
  color: white;
  padding: var(--space-3) var(--space-5);
  border-radius: 50px;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(5, 25, 55, 0.3);
}

.action-btn:hover {
  background: #004d7a;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 77, 122, 0.4);
}

.action-btn.bookmarked {
  background: #a8eb12;
  color: #051937;
  box-shadow: 0 4px 15px rgba(168, 235, 18, 0.4);
}

.modal-body {
  overflow: hidden;
  display: flex;
  flex-direction: column;
  /* Let content determine size naturally */
  flex: 1 1 auto;
  min-height: 0;
  border: none; /* Explicitly remove any borders */
  background: var(--color-white);
  font-size: var(--font-size-sm);
}

.modal-tabs {
  display: flex;
  background: transparent; /* Remove white background frame */
  border-bottom: none; /* Remove border line */
  backdrop-filter: blur(10px);
}

.tab-btn {
  background: none;
  border: none;
  color: #2d3748;
  padding: var(--space-3) var(--space-6);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all 0.3s ease;
  border-bottom: 2px solid transparent;
}

.tab-btn:hover {
  color: #1a202c;
  background: rgba(255, 255, 255, 0.5);
}

.tab-btn.active {
  color: #008793;
  border-bottom-color: #008793;
  background: transparent;
}

.tab-content {
  padding: var(--space-8);
  font-size: var(--font-size-sm);
  background: transparent; /* Remove white background frame */
  border: none; /* Explicitly remove any borders */
  /* Flexible content area that scrolls within the modal */
  flex: 1 1 auto;
  min-height: 0; /* Required so flex children can shrink on mobile */
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.tab-pane {
  display: none;
  border: none; /* Explicitly remove any borders */
  background: transparent; /* Ensure no background */
}

.tab-pane.active {
  display: block;
  border: none; /* Explicitly remove any borders */
  background: transparent; /* Ensure no background */
}

.overview-content,
.technical-content,
.implementation-content,
.examples-content,
.related-content {
  max-width: none;
  border: none; /* Explicitly remove any borders */
  background: transparent; /* Ensure no background */
}

.definition-section,
.explanation-section,
.benefits-section,
.applications-section,
.standards-section,
.technical-details,
/* .chart-section removed (heading removed) */
.software-section,
.workflow-section,
.best-practices-section,
.case-studies-section,
.roi-section,
.related-terms-section,
.see-also-section {
  margin-bottom: var(--space-24);
}

.definition-text,
.explanation-text {
  font-size: var(--font-size-lg);
  line-height: var(--line-height-normal);
  color: var(--color-text);
}

/* Headings, lists, and spacing for markdown in definition/explanation */
.definition-text h1, .definition-text h2, .definition-text h3,
.explanation-text h1, .explanation-text h2, .explanation-text h3 {
  margin: 1em 0 .5em;
}
.definition-text ul, .explanation-text ul { margin: .5em 0 .5em 1.2em; }
.definition-text p, .explanation-text p { margin: .5em 0; }

.benefits-list,
.applications-list,
.best-practices-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.benefits-list li,
.applications-list li,
.best-practices-list li {
  padding: var(--space-8) 0;
  border-bottom: 1px solid var(--color-card-border-inner);
  position: relative;
  padding-left: var(--space-20);
}

.benefits-list li:before,
.applications-list li:before,
.best-practices-list li:before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-success);
  font-weight: bold;
}

.standards-list,
.software-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-12);
}

.standard-item,
.software-item {
  background: var(--color-background);
  padding: var(--space-12);
  border-radius: var(--radius-base);
  border: 1px solid var(--color-card-border);
}

.case-studies-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-16);
}

.case-study-item {
  background: var(--color-background);
  padding: var(--space-20);
  border-radius: var(--radius-base);
  border: 1px solid var(--color-card-border);
}

.case-study-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  margin: 0 0 var(--space-8) 0;
}

.related-terms-list,
.see-also-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-12);
}

.related-term-item {
  background: var(--color-background);
  padding: var(--space-12);
  border-radius: var(--radius-base);
  border: 1px solid var(--color-card-border);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-standard);
}

.related-term-item:hover {
  background: var(--color-secondary);
  border-color: var(--color-primary);
}

/* Chart Container */
/* chart container no longer used in technical tab after heading removal; keep neutral spacing for compatibility */
.chart-container {
  background: var(--color-background);
  /* border-radius: var(--radius-base); */
  /* border: 1px solid var(--color-card-border); */
  padding: 0;
  margin: 0;
}

/* No Results */
.no-results {
  text-align: center;
  padding: var(--space-32);
}

.no-results-content {
  max-width: 300px;
  margin: 0 auto;
}


/* Markdown content styling inside technical text */
.technical-text-section { margin-top: 0; }
.technical-text-area { color: var(--color-text); line-height: 1.6; }
.technical-text-area h1, .technical-text-area h2, .technical-text-area h3 { margin: 0.75em 0 0.4em; }
.technical-text-area ul { margin: .25em 0 .25em 1.2em; }

/* Match Implementation text area styling with Technical */
.workflow-content { color: var(--color-text); line-height: 1.6; }
.workflow-content h1, .workflow-content h2, .workflow-content h3 { margin: 1em 0 .5em; }
.workflow-content ul { margin: .5em 0 .5em 1.2em; }
.technical-text-area li { margin: .25em 0; }
.technical-text-area p { margin: .5em 0; }

.no-results-content svg {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-16);
}

.no-results-content h3 {
  font-size: var(--font-size-2xl);
  color: var(--color-text);
  margin-bottom: var(--space-8);
}

.no-results-content p {
  color: var(--color-text-secondary);
  margin: 0;
}

/* PREMIUM FOOTER */
.footer {
  background: var(--color-neutral-50);
  border-top: 1px solid var(--color-neutral-200);
  padding: var(--space-16) 0;
  margin-top: auto;
}

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

.footer-main {
  flex: 1;
}

.footer-text {
  font-family: var(--font-family-display);
  font-size: var(--font-size-base);
  color: var(--color-text);
  margin: 0 0 var(--space-2) 0;
  font-weight: var(--font-weight-medium);
}

.footer-subtitle {
  font-family: var(--font-family-base);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin: 0;
}

.footer-stats {
  display: flex;
  gap: var(--space-8);
}

/* PREMIUM STAT ITEMS */
.stat-item {
  text-align: center;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg);
  background: var(--color-white);
  border: 1px solid var(--color-neutral-200);
  transition: all 0.2s ease;
}

.stat-item:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.stat-number {
  display: block;
  font-family: var(--font-family-display);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
}

.stat-label {
  font-family: var(--font-family-base);
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
  margin-top: var(--space-1);
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.term-card {
  animation: fadeIn var(--duration-normal) var(--ease-standard);
}

.modal-content {
  animation: slideUp var(--duration-normal) var(--ease-standard);
}

/* Responsive Design */
@media (max-width: 1024px) {
  .header-content {
    gap: var(--space-16);
  }

  .header-visual {
    transform: none;
  }

  .premium-graphic {
    width: clamp(180px, 22vw, 250px);
  }
}

@media (max-width: 768px) {
  .header {
    padding: var(--space-16) 0;
  }

  .header-content {
    flex-direction: column;
    text-align: center;
    gap: var(--space-16);
    padding: 0 var(--space-16);
  }

  .header-visual {
    margin: 0;
    order: -1;
  }

  .premium-graphic {
    width: min(160px, 60vw);
  }

  .app-title {
    font-size: clamp(1.5rem, 6vw, 2rem);
  }

  .app-subtitle {
    font-size: var(--font-size-sm);
  }

  .header-stats {
    justify-content: center;
  }
}

@media (max-width: 768px) {

  .main-content {
    padding: var(--space-24) 0;
  }

  .filter-header {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-16);
  }

  .filter-actions {
    justify-content: space-between;
  }

  .results-header {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-12);
  }

  .results-info {
    justify-content: space-between;
  }

  .modal {
    padding: var(--space-12);
  }

  .modal-content {
    max-height: 95vh;
  }

  .modal-header {
    flex-direction: column;
    gap: var(--space-16);
    align-items: stretch;
  }

  .modal-title {
    font-size: var(--font-size-2xl);
  }

  .modal-tabs {
    flex-wrap: wrap;
  }

  .tab-btn {
    flex: 1;
    min-width: 120px;
  }

  .footer-content {
    flex-direction: column;
    gap: var(--space-20);
    text-align: center;
  }

  .footer-stats {
    justify-content: center;
  }
}

/* Mobile usability tweaks */
@media (max-width: 480px) {
  /* Increase tap targets */
  .view-btn, .action-btn, .bookmark-toggle-btn, .clear-filters-btn,
  .category-btn, .complexity-btn, .region-btn {
    padding: 10px 14px;
  }

  /* Search input comfortable height */
  .search-input {
    padding: 14px 44px 14px 48px;
    font-size: 16px; /* prevent iOS zoom */
  }

  /* Make suggestions more usable */
  .search-suggestions {
    max-height: 50vh;
  }

  /* Tabs can scroll horizontally on small screens */
  .modal-tabs {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  /* Fullscreen modal on tiny screens */
  .modal-content {
    width: 100%;
    height: 100dvh; /* Use dynamic viewport to avoid iOS URL bar issues */
    max-width: 100%;
    max-height: 100dvh;
    border-radius: 0;
    padding-bottom: env(safe-area-inset-bottom);
  }

  .modal-header {
    /* Respect iOS safe areas at the top */
    padding: calc(var(--space-16) + env(safe-area-inset-top)) var(--space-16) var(--space-16);
  }

  .modal {
    padding: 0;
  }

  .tab-content {
    padding: 16px;
  }
}


/* Focus states for accessibility */
.search-input:focus-visible,
.category-btn:focus-visible,
.complexity-btn:focus-visible,
.region-btn:focus-visible,
.view-btn:focus-visible,
.tab-btn:focus-visible,
.action-btn:focus-visible {
  outline: var(--focus-outline);
  outline-offset: 2px;
}

.term-card:focus-visible {
  outline: var(--focus-outline);
  outline-offset: 2px;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* Print styles */
@media print {
  .header,
  .filter-section,
  .results-header,
  .footer {
    display: none !important;
  }

  .modal-overlay,
  .modal-actions {
    display: none !important;
  }

  .modal-content {
    box-shadow: none !important;
    max-height: none !important;
    overflow: visible !important;
  }

  .tab-content {
    overflow: visible !important;
  }

  .tab-pane {
    display: block !important;
  }

  .modal-tabs {
    display: none !important;
  }
}

/* Loading states */
.loading {
  opacity: 0.6;
  pointer-events: none;
}

.skeleton {
  background: linear-gradient(90deg, var(--color-secondary) 25%, transparent 50%, var(--color-secondary) 75%);
  background-size: 200% 100%;
  animation: loading 1.5s infinite;
}

@keyframes loading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* Pagination styles */
.pagination-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  margin-top: 2rem;
  padding: 1.5rem 0;
}

.pagination {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  justify-content: center;
}

.pagination-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--color-border);
  background: var(--color-background);
  color: var(--color-text);
  border-radius: 0.375rem;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  min-width: 2.5rem;
  justify-content: center;
}

.pagination-btn:hover:not(.disabled) {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
  transform: translateY(-1px);
}

.pagination-btn.active {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
  font-weight: 600;
}

.pagination-btn.disabled {
  opacity: 0.5;
  cursor: not-allowed;
  background: var(--color-secondary);
}

.pagination-ellipsis {
  padding: 0.5rem 0.25rem;
  color: var(--color-text-secondary);
  font-weight: 500;
}

.pagination-info {
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  text-align: center;
}

/* Responsive pagination */
@media (max-width: 768px) {
  .pagination-container {
    margin-top: 1.5rem;
    padding: 1rem 0;
  }

  .pagination {
    gap: 0.25rem;
  }

  .pagination-btn {
    padding: 0.375rem 0.5rem;
    font-size: 0.8rem;
    min-width: 2rem;
  }

  .pagination-btn svg {
    width: 14px;
    height: 14px;
  }

  .pagination-info {
    font-size: 0.8rem;
  }
}

/* Glassmorphism Theme (visual-only overrides) */
/* Inspired by glassmorphism.css sample; applied conservatively to UI containers. */
:root {
  --glass-bg: rgba(255, 255, 255, 0.55);
  --glass-border: rgba(255, 255, 255, 0.30);
  --glass-shadow: 0 4px 30px rgba(0, 0, 0, 0.10);
  --glass-blur: 10px;
}

[data-color-scheme="dark"] {
  /* Dark theme needs lower opacity to preserve contrast */
  --glass-bg: rgba(255, 255, 255, 0.08);
  --glass-border: rgba(255, 255, 255, 0.18);
  --glass-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
  --glass-blur: 12px;
}

/* Utility class in case it's needed in the future (no HTML changes required now) */
.glass {
  background: var(--glass-bg) !important;
  border: 1px solid var(--glass-border) !important;
  box-shadow: var(--glass-shadow) !important;
}

/* Prefer using backdrop-filter only if supported */
@supports (backdrop-filter: blur(2px)) or (-webkit-backdrop-filter: blur(2px)) {
  /* Core containers that benefit from glass effect */
  .card,
  .term-card,
  .filter-section,
  .search-input-wrapper,
  .search-results {
    background: var(--glass-bg);
    border-color: var(--glass-border);
    box-shadow: var(--glass-shadow);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
  }

  /* Keep existing hover/active effects while enhancing depth */
  .card:hover,
  .term-card:hover {
    box-shadow: var(--shadow-md), 0 10px 30px rgba(0, 0, 0, 0.12);
  }

  /* Modal header blends with glass content for cohesion */
  .modal-header {
    background: transparent;
    border-bottom: none;
    backdrop-filter: blur(calc(var(--glass-blur) * 0.6));
    -webkit-backdrop-filter: blur(calc(var(--glass-blur) * 0.6));
  }

  /* Search dropdown panel */
  .search-results {
    background: var(--glass-bg);
    border-color: var(--glass-border);
    backdrop-filter: blur(calc(var(--glass-blur) * 0.8));
    -webkit-backdrop-filter: blur(calc(var(--glass-blur) * 0.8));
  }
}

/* Subtle background polish: keep gradients, but add a faint texture through shadow only */
.app-container {
  background-color: var(--color-background);
}