<!-- start Simple Custom CSS and JS -->
<style type="text/css">
: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);
/* ベース（共通） */
:root {
  --bg-color: var(--color-background);
  --text-color: var(--color-text);
  --surface-color: var(--color-surface);
  /* ……その他のセマンティック変数…… */
}

/* Dark mode colors */
@media (prefers-color-scheme: dark) {

  /* 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); /* Light blue */
  --color-bg-2: rgba(245, 158, 11, 0.08); /* Light yellow */
  --color-bg-3: rgba(34, 197, 94, 0.08); /* Light green */
  --color-bg-4: rgba(239, 68, 68, 0.08); /* Light red */
  --color-bg-5: rgba(147, 51, 234, 0.08); /* Light purple */
  --color-bg-6: rgba(249, 115, 22, 0.08); /* Light orange */
  --color-bg-7: rgba(236, 72, 153, 0.08); /* Light pink */
  --color-bg-8: rgba(6, 182, 212, 0.08); /* Light cyan */

  /* 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;
}


  :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-16) 0;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-standard);
}

a:hover {
  color: var(--color-primary-hover);
}

code,
pre {
  font-family: var(--font-family-mono);
  font-size: calc(var(--font-size-base) * 0.95);
  background-color: var(--color-secondary);
  border-radius: var(--radius-sm);
}

code {
  padding: var(--space-1) var(--space-4);
}

pre {
  padding: var(--space-16);
  margin: var(--space-16) 0;
  overflow: auto;
  border: 1px solid var(--color-border);
}

pre code {
  background: none;
  padding: 0;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-8) var(--space-16);
  border-radius: var(--radius-base);
  font-size: var(--font-size-base);
  font-weight: 500;
  line-height: 1.5;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-standard);
  border: none;
  text-decoration: none;
  position: relative;
}

.btn:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-btn-primary-text);
}

.btn--primary:hover {
  background: var(--color-primary-hover);
}

.btn--primary:active {
  background: var(--color-primary-active);
}

.btn--secondary {
  background: var(--color-secondary);
  color: var(--color-text);
}

.btn--secondary:hover {
  background: var(--color-secondary-hover);
}

.btn--secondary:active {
  background: var(--color-secondary-active);
}

.btn--outline {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text);
}

.btn--outline:hover {
  background: var(--color-secondary);
}

.btn--sm {
  padding: var(--space-4) var(--space-12);
  font-size: var(--font-size-sm);
  border-radius: var(--radius-sm);
}

.btn--lg {
  padding: var(--space-10) var(--space-20);
  font-size: var(--font-size-lg);
  border-radius: var(--radius-md);
}

.btn--full-width {
  width: 100%;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Form elements */
.form-control {
  display: block;
  width: 100%;
  padding: var(--space-8) var(--space-12);
  font-size: var(--font-size-md);
  line-height: 1.5;
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  transition: border-color var(--duration-fast) var(--ease-standard),
    box-shadow var(--duration-fast) var(--ease-standard);
}

textarea.form-control {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
}

select.form-control {
  padding: var(--space-8) var(--space-12);
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-image: var(--select-caret-light);
  background-repeat: no-repeat;
  background-position: right var(--space-12) center;
  background-size: 16px;
  padding-right: var(--space-32);
}

/* Add a dark mode specific caret */
@media (prefers-color-scheme: dark) {
  select.form-control {
    background-image: var(--select-caret-dark);
  }
}

/* Also handle data-color-scheme */
[data-color-scheme="dark"] select.form-control {
  background-image: var(--select-caret-dark);
}

[data-color-scheme="light"] select.form-control {
  background-image: var(--select-caret-light);
}

.form-control:focus {
  border-color: var(--color-primary);
  outline: var(--focus-outline);
}

.form-label {
  display: block;
  margin-bottom: var(--space-8);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
}

.form-group {
  margin-bottom: var(--space-16);
}

/* Card component */
.card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: box-shadow var(--duration-normal) var(--ease-standard);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card__body {
  padding: var(--space-16);
}

.card__header,
.card__footer {
  padding: var(--space-16);
  border-bottom: 1px solid var(--color-card-border-inner);
}

/* Status indicators - 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));
}

/* 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');
}

/* END PERPLEXITY DESIGN SYSTEM */
/* Custom variables for hirokuriPC maintenance page */
:root {
  /* Maintenance specific colors */
  --color-primary-maintenance: #1e3a8a;
  --color-secondary-maintenance: #faad14;
  --color-accent-maintenance: #6b7280;
  --color-background-maintenance: #0f172a;
  --color-surface-maintenance: #1e293b;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 50%, #faad14 100%);
  --gradient-secondary: linear-gradient(135deg, #faad14 0%, #f59e0b 100%);
  --gradient-dark: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
  --gradient-glass: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
  
  /* Shadows and effects */
  --shadow-glow-blue: 0 0 30px rgba(30, 58, 138, 0.4);
  --shadow-glow-gold: 0 0 20px rgba(250, 173, 20, 0.3);
  --shadow-glass: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-float: 0 20px 60px rgba(30, 58, 138, 0.2);
  
  /* Animation timings */
  --duration-fast: 0.3s;
  --duration-normal: 0.6s;
  --duration-slow: 1.2s;
  --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
  --ease-glass: cubic-bezier(0.16, 1, 0.3, 1);
}

/* Reset and base styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-family-base);
  background: var(--color-background-maintenance);
  color: var(--color-text);
  overflow-x: hidden;
  min-height: 100vh;
  position: relative;
}

/* Particle Background */
.particle-background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  overflow: hidden;
}

.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--gradient-primary);
  border-radius: 50%;
  opacity: 0.6;
  animation: particleFloat 10s linear infinite;
}

.particle:nth-child(1) { left: 10%; animation-delay: 0s; }
.particle:nth-child(2) { left: 20%; animation-delay: -2s; }
.particle:nth-child(3) { left: 30%; animation-delay: -4s; }
.particle:nth-child(4) { left: 40%; animation-delay: -6s; }
.particle:nth-child(5) { left: 50%; animation-delay: -8s; }
.particle:nth-child(6) { left: 60%; animation-delay: -1s; }
.particle:nth-child(7) { left: 70%; animation-delay: -3s; }
.particle:nth-child(8) { left: 80%; animation-delay: -5s; }

@keyframes particleFloat {
  0% {
    transform: translateY(100vh) rotate(0deg);
    opacity: 0;
  }
  10% {
    opacity: 0.6;
  }
  90% {
    opacity: 0.6;
  }
  100% {
    transform: translateY(-100px) rotate(360deg);
    opacity: 0;
  }
}

/* Glassmorphism Overlays */
.glass-overlay {
  position: fixed;
  border-radius: 50%;
  background: var(--gradient-glass);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  z-index: -1;
  opacity: 0.3;
}

.overlay-1 {
  width: 300px;
  height: 300px;
  top: 10%;
  right: 10%;
  animation: floatSlow 15s ease-in-out infinite;
}

.overlay-2 {
  width: 200px;
  height: 200px;
  bottom: 20%;
  left: 15%;
  animation: floatSlow 12s ease-in-out infinite reverse;
}

.overlay-3 {
  width: 400px;
  height: 400px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: floatSlow 18s ease-in-out infinite;
}

@keyframes floatSlow {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  33% { transform: translate(30px, -30px) rotate(120deg); }
  66% { transform: translate(-20px, 20px) rotate(240deg); }
}

/* Main Container */
.maintenance-container {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  z-index: 1;
  background: radial-gradient(ellipse at center, rgba(30, 58, 138, 0.1) 0%, transparent 70%);
}

/* Header */
.maintenance-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 2rem 4rem;
  position: relative;
  animation: slideInDown 1s var(--ease-bounce);
}

.brand-section {
  flex: 1;
}

.brand-logo {
  position: relative;
  margin-bottom: 1rem;
}

.logo-text {
  font-size: 3rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 0 30px rgba(30, 58, 138, 0.5);
  animation: logoGlow 3s ease-in-out infinite alternate;
}

.logo-decoration {
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 3px;
  background: var(--gradient-secondary);
  animation: decorationExpand 2s var(--ease-bounce) 0.5s forwards;
}

@keyframes logoGlow {
  0% { filter: drop-shadow(0 0 20px rgba(30, 58, 138, 0.6)); }
  100% { filter: drop-shadow(0 0 40px rgba(250, 173, 20, 0.8)); }
}

@keyframes decorationExpand {
  0% { width: 0; }
  100% { width: 200px; }
}

.brand-slogan {
  font-size: 1.2rem;
  color: var(--color-secondary-maintenance);
  opacity: 0;
  animation: fadeInUp 1s var(--ease-glass) 1s forwards;
}

.typing-text {
  position: relative;
  display: inline-block;
}

.typing-text::after {
  content: '|';
  color: var(--color-secondary-maintenance);
  animation: blink 1s infinite;
  margin-left: 2px;
}

@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

/* PC Decoration */
.pc-decoration {
  display: flex;
  gap: 2rem;
  opacity: 0;
  animation: fadeInRight 1s var(--ease-bounce) 0.8s forwards;
}

.pc-part {
  width: 60px;
  height: 60px;
  background: var(--gradient-glass);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  box-shadow: var(--shadow-glass);
  transition: all var(--duration-normal) var(--ease-bounce);
}

.pc-part:hover {
  transform: translateY(-10px) scale(1.1);
  box-shadow: var(--shadow-glow-blue);
}

.pc-part:nth-child(1) { animation: bounce 2s ease-in-out infinite; animation-delay: 0s; }
.pc-part:nth-child(2) { animation: bounce 2s ease-in-out infinite; animation-delay: 0.2s; }
.pc-part:nth-child(3) { animation: bounce 2s ease-in-out infinite; animation-delay: 0.4s; }
.pc-part:nth-child(4) { animation: bounce 2s ease-in-out infinite; animation-delay: 0.6s; }

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
  40% { transform: translateY(-20px); }
  60% { transform: translateY(-10px); }
}

/* Main Content */
.maintenance-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  gap: 3rem;
}

/* Glass Card */
.glass-card {
  background: var(--gradient-glass);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 25px;
  padding: 3rem;
  box-shadow: var(--shadow-glass);
  position: relative;
  overflow: hidden;
  transition: all var(--duration-normal) var(--ease-glass);
}

.glass-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  transition: left 0.8s ease;
}

.glass-card:hover::before {
  left: 100%;
}

.glass-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-float);
  border-color: rgba(30, 58, 138, 0.3);
}

/* Main Card */
.main-card {
  text-align: center;
  max-width: 600px;
  width: 100%;
  animation: scaleIn 1s var(--ease-bounce) 0.5s both;
}

@keyframes scaleIn {
  0% {
    opacity: 0;
    transform: scale(0.8) rotateY(90deg);
  }
  100% {
    opacity: 1;
    transform: scale(1) rotateY(0deg);
  }
}

/* Maintenance Icon */
.maintenance-icon {
  margin-bottom: 2rem;
}

.spinning-gear {
  font-size: 4rem;
  display: inline-block;
  animation: spin 3s linear infinite;
  filter: drop-shadow(0 0 20px rgba(30, 58, 138, 0.6));
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Maintenance Title */
.maintenance-title {
  margin-bottom: 3rem;
}

.title-main {
  display: block;
  font-size: 4rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1rem;
  text-shadow: 0 0 30px rgba(30, 58, 138, 0.5);
  animation: titlePulse 2s ease-in-out infinite;
}

.title-sub {
  display: block;
  font-size: 1.5rem;
  color: var(--color-text-secondary);
  font-weight: 400;
  opacity: 0;
  animation: fadeInUp 1s var(--ease-glass) 1s forwards;
}

@keyframes titlePulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.02); }
}

/* Progress Section */
.progress-section {
  margin-bottom: 3rem;
  width: 100%;
}

.progress-label {
  font-size: 1.2rem;
  color: var(--color-secondary-maintenance);
  margin-bottom: 1rem;
  font-weight: 600;
}

.progress-container {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.progress-bar {
  flex: 1;
  height: 20px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  overflow: hidden;
  position: relative;
  border: 1px solid rgba(30, 58, 138, 0.3);
}

.progress-fill {
  height: 100%;
  background: var(--gradient-primary);
  width: 0%;
  border-radius: 10px;
  position: relative;
  transition: width 2s var(--ease-bounce) 1s;
  overflow: hidden;
}

.progress-fill::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  animation: progressShine 2s ease-in-out infinite;
}

@keyframes progressShine {
  0% { left: -100%; }
  100% { left: 100%; }
}

.progress-glow {
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: var(--gradient-primary);
  border-radius: 12px;
  opacity: 0;
  animation: progressGlow 3s ease-in-out infinite;
  z-index: -1;
}

@keyframes progressGlow {
  0%, 100% { opacity: 0; }
  50% { opacity: 0.3; }
}

.progress-percentage {
  font-size: 2rem;
  font-weight: 700;
  background: var(--gradient-secondary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  min-width: 60px;
  animation: counterAnimation 2s var(--ease-bounce) 1s both;
}

@keyframes counterAnimation {
  0% { transform: scale(0.5) rotate(-10deg); opacity: 0; }
  100% { transform: scale(1) rotate(0deg); opacity: 1; }
}

/* Status Message */
.status-message {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 1.5rem;
  background: rgba(250, 173, 20, 0.1);
  border: 1px solid rgba(250, 173, 20, 0.3);
  border-radius: 15px;
  margin-bottom: 2rem;
  animation: statusPulse 2s ease-in-out infinite;
}

@keyframes statusPulse {
  0%, 100% { transform: scale(1); opacity: 0.9; }
  50% { transform: scale(1.02); opacity: 1; }
}

.status-icon {
  font-size: 1.5rem;
  animation: shake 2s ease-in-out infinite;
}

@keyframes shake {
  0%, 100% { transform: rotate(0deg); }
  25% { transform: rotate(-2deg); }
  75% { transform: rotate(2deg); }
}

.status-text {
  font-size: 1.1rem;
  color: var(--color-secondary-maintenance);
  font-weight: 500;
}

/* Floating Services */
.floating-services {
  position: absolute;
  bottom: -50px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 2rem;
  opacity: 0;
  animation: fadeInUp 1s var(--ease-bounce) 2s forwards;
}

.service-bubble {
  width: 60px;
  height: 60px;
  background: var(--gradient-glass);
  backdrop-filter: blur(15px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  box-shadow: var(--shadow-glass);
  cursor: pointer;
  position: relative;
  transition: all var(--duration-normal) var(--ease-bounce);
}

.service-bubble::before {
  content: attr(data-service);
  position: absolute;
  bottom: -40px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0, 0, 0, 0.8);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  font-size: 0.8rem;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: all var(--duration-fast) ease;
}

.service-bubble:hover {
  transform: translateY(-15px) scale(1.2);
  box-shadow: var(--shadow-glow-blue);
}

.service-bubble:hover::before {
  opacity: 1;
  bottom: -50px;
}

.service-bubble:nth-child(1) { animation: float1 4s ease-in-out infinite; }
.service-bubble:nth-child(2) { animation: float2 4s ease-in-out infinite 0.5s; }
.service-bubble:nth-child(3) { animation: float3 4s ease-in-out infinite 1s; }
.service-bubble:nth-child(4) { animation: float4 4s ease-in-out infinite 1.5s; }

@keyframes float1 {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-10px) rotate(5deg); }
}

@keyframes float2 {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-15px) rotate(-3deg); }
}

@keyframes float3 {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-12px) rotate(4deg); }
}

@keyframes float4 {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-8px) rotate(-2deg); }
}

/* Info Cards */
.info-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  width: 100%;
  max-width: 800px;
}

.info-card {
  text-align: center;
  opacity: 0;
  animation: slideInUp 1s var(--ease-bounce) 1.5s forwards;
}

.info-card:nth-child(2) {
  animation-delay: 1.8s;
}

@keyframes slideInUp {
  0% {
    opacity: 0;
    transform: translateY(50px) rotateX(90deg);
  }
  100% {
    opacity: 1;
    transform: translateY(0) rotateX(0deg);
  }
}

.card-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  display: inline-block;
  filter: drop-shadow(0 0 15px rgba(30, 58, 138, 0.4));
  animation: iconFloat 3s ease-in-out infinite;
}

@keyframes iconFloat {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-5px) scale(1.05); }
}

.info-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
  color: var(--color-text);
  font-weight: 600;
}

.completion-time,
.contact-info {
  padding: 1rem;
  background: rgba(30, 58, 138, 0.1);
  border-radius: 12px;
  border: 1px solid rgba(30, 58, 138, 0.2);
}

.time-text {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-secondary-maintenance);
  display: block;
  margin-bottom: 0.5rem;
}

.time-note,
.contact-note {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  opacity: 0.8;
}

.contact-link {
  display: inline-block;
  color: var(--color-primary-maintenance);
  text-decoration: none;
  font-weight: 600;
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
  transition: all var(--duration-fast) ease;
  position: relative;
  overflow: hidden;
}

.contact-link::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-secondary);
  transition: width var(--duration-normal) ease;
}

.contact-link:hover {
  color: var(--color-secondary-maintenance);
  transform: translateY(-2px);
}

.contact-link:hover::before {
  width: 100%;
}

/* Footer */
.maintenance-footer {
  padding: 2rem 4rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  opacity: 0;
  animation: fadeIn 1s ease 2.5s forwards;
}

.footer-content {
  text-align: center;
  flex: 1;
}

.apology-text {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.footer-copy {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  opacity: 0.7;
}

/* Loading Spinner */
.loading-spinner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.spinner-ring {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(30, 58, 138, 0.3);
  border-top: 3px solid var(--color-primary-maintenance);
  border-radius: 50%;
  animation: spinnerRotate 1s linear infinite;
}

@keyframes spinnerRotate {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.spinner-text {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  font-weight: 500;
}

/* Global Animations */
@keyframes slideInDown {
  0% {
    opacity: 0;
    transform: translateY(-100px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInUp {
  0% {
    opacity: 0;
    transform: translateY(30px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInRight {
  0% {
    opacity: 0;
    transform: translateX(50px);
  }
  100% {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeIn {
  0% { opacity: 0; }
  100% { opacity: 1; }
}

/* Responsive Design */
@media (max-width: 768px) {
  .maintenance-header {
    flex-direction: column;
    gap: 2rem;
    padding: 2rem;
    text-align: center;
  }
  
  .logo-text {
    font-size: 2.5rem;
  }
  
  .pc-decoration {
    justify-content: center;
  }
  
  .title-main {
    font-size: 3rem;
  }
  
  .title-sub {
    font-size: 1.2rem;
  }
  
  .main-card {
    padding: 2rem;
  }
  
  .info-cards {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .maintenance-footer {
    flex-direction: column;
    gap: 2rem;
    padding: 2rem;
  }
  
  .floating-services {
    position: static;
    transform: none;
    margin-top: 2rem;
    justify-content: center;
  }
  
  .service-bubble {
    position: static;
  }
}

@media (max-width: 480px) {
  .logo-text {
    font-size: 2rem;
  }
  
  .title-main {
    font-size: 2.5rem;
  }
  
  .pc-decoration {
    gap: 1rem;
  }
  
  .pc-part {
    width: 50px;
    height: 50px;
    font-size: 1.2rem;
  }
  
  .floating-services {
    gap: 1rem;
  }
  
  .service-bubble {
    width: 50px;
    height: 50px;
    font-size: 1.2rem;
  }
}

/* High contrast mode */
@media (prefers-contrast: high) {
  .glass-card {
    background: rgba(0, 0, 0, 0.8);
    border: 2px solid var(--color-primary-maintenance);
  }
  
  .progress-bar {
    border: 2px solid var(--color-primary-maintenance);
  }
  
  .status-message {
    background: rgba(250, 173, 20, 0.2);
    border: 2px solid var(--color-secondary-maintenance);
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .spinning-gear {
    animation: none;
  }
  
  .particle {
    animation: none;
    opacity: 0.2;
  }
}

/* Print styles */
@media print {
  .particle-background,
  .glass-overlay,
  .pc-decoration,
  .floating-services,
  .loading-spinner {
    display: none;
  }
  
  body {
    background: white;
    color: black;
  }
  
  .glass-card {
    background: white;
    border: 1px solid black;
    box-shadow: none;
  }
}</style>
<!-- end Simple Custom CSS and JS -->
