src/app/globals.css

@import "tailwindcss";

/* Define dark mode variant */
@custom-variant dark (&:where([data-theme="dark"], [data-theme="dark"] *));

:root {
  /* Japanese aesthetic color palette - light mode */
  --background: #f8f4e6; /* Warm off-white like washi paper */
  --foreground: #333333; /* Soft black for text */
  --shadow-color: rgba(0, 0, 0, 0.05);
  --accent-primary: #9b7cb9; /* Soft purple (Fuji) */
  --accent-secondary: #d7c4bb; /* Soft beige (Kinari) */
  --border-color: #e0d8c8; /* Soft beige border */
  --card-bg: #fffaf0; /* Slightly warmer than background */
  --highlight: #e8927c; /* Soft coral (Akane) */
  --muted: #a59e8c; /* Soft gray-brown (Nezumi) */
  --link-color: #7c5aa0; /* Slightly darker purple for links */
}

html[data-theme='dark'] {
  /* Japanese aesthetic color palette - dark mode */
  --background: #1a1a1a; /* Deep charcoal */
  --foreground: #f0f0f0; /* Soft white */
  --shadow-color: rgba(0, 0, 0, 0.2);
  --accent-primary: #9370db; /* Soft lavender */
  --accent-secondary: #5d4037; /* Warm brown */
  --border-color: #2c2c2c; /* Dark border */
  --card-bg: #222222; /* Slightly lighter than background */
  --highlight: #e57373; /* Soft red */
  --muted: #8c8c8c; /* Muted gray */
  --link-color: #b19cd9; /* Lighter purple for dark mode links */
}

/* Fix for unreadable <select> options in Chrome's dark mode */
[data-theme="dark"] select option {
  background: var(--background);
}

@theme inline {
  --color-background: var(--background);
  --color-foreground: var(--foreground);
  --font-sans: var(--font-geist-sans);
  --font-mono: var(--font-geist-mono);
}

body {
  background: var(--background);
  color: var(--foreground);
  font-family: var(--font-sans), sans-serif;
}

/* Custom shadow styles - more subtle for Japanese aesthetic */
.shadow-custom {
  box-shadow: 0 4px 8px -2px var(--shadow-color);
}

/* Paper texture background */
.paper-texture {
  background-color: var(--card-bg);
  background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%23e0d8c8' fill-opacity='0.1' fill-rule='evenodd'/%3E%3C/svg%3E");
}

/* Dark mode paper texture */
html[data-theme='dark'] .paper-texture {
  background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%23333333' fill-opacity='0.1' fill-rule='evenodd'/%3E%3C/svg%3E");
}

/* Japanese-style buttons */
.btn-japanese {
  background-color: var(--accent-primary);
  color: white;
  border: none;
  border-radius: 0.25rem;
  padding: 0.5rem 1.5rem;
  font-weight: 500;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

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

.btn-japanese:before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 100%;
  background-color: rgba(255, 255, 255, 0.2);
  transition: width 0.3s ease;
}

.btn-japanese:hover:before {
  width: 100%;
}

/* Japanese-style inputs */
.input-japanese {
  background-color: transparent;
  border: 1px solid var(--border-color);
  border-radius: 0.25rem;
  padding: 0.5rem 1rem;
  transition: all 0.3s ease;
}

.input-japanese:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 2px rgba(155, 124, 185, 0.2);
  outline: none;
}

/* Japanese-style cards */
.card-japanese {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  overflow: hidden;
  transition: all 0.3s ease;
}

.card-japanese:hover {
  box-shadow: 0 4px 12px var(--shadow-color);
}

/* Line clamp utilities */
.line-clamp-1 {
  overflow: hidden;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 1;
}

.line-clamp-2 {
  overflow: hidden;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.line-clamp-3 {
  overflow: hidden;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}