/* Tailwind CSS Utilities - 必要なユーティリティクラスのみ */

/* Layout */
.w-full { width: 100%; }
.w-auto { width: auto; }
.w-5 { width: 1.25rem; }
.w-6 { width: 1.5rem; }
.w-12 { width: 3rem; }
.w-16 { width: 4rem; }
.h-full { height: 100%; }
.h-auto { height: auto; }
.h-5 { height: 1.25rem; }
.h-6 { height: 1.5rem; }
.h-12 { height: 3rem; }
.h-16 { height: 4rem; }
.min-h-screen { min-height: 100vh; }
.max-w-4xl { max-width: 56rem; }
.max-w-6xl { max-width: 72rem; }
.max-w-7xl { max-width: 80rem; }
.max-w-md { max-width: 28rem; }
.mx-auto { margin-left: auto; margin-right: auto; }
.m-0 { margin: 0; }
.p-0 { padding: 0; }

/* Flexbox */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-shrink-0 { flex-shrink: 0; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }
.gap-8 { gap: 2rem; }
.gap-12 { gap: 3rem; }

/* Grid */
.grid { display: grid; }
.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.col-span-2 { grid-column: span 2 / span 2; }

/* Spacing */
.p-2 { padding: 0.5rem; }
.p-4 { padding: 1rem; }
.p-6 { padding: 1.5rem; }
.p-8 { padding: 2rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
.px-8 { padding-left: 2rem; padding-right: 2rem; }
.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-3 { padding-top: 0.75rem; padding-bottom: 0.75rem; }
.py-4 { padding-top: 1rem; padding-bottom: 1rem; }
.py-8 { padding-top: 2rem; padding-bottom: 2rem; }
.py-12 { padding-top: 3rem; padding-bottom: 3rem; }
.py-20 { padding-top: 5rem; padding-bottom: 5rem; }
.pt-16 { padding-top: 4rem; }
.pb-4 { padding-bottom: 1rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mb-12 { margin-bottom: 3rem; }
.mb-16 { margin-bottom: 4rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-4 { margin-top: 1rem; }
.mt-12 { margin-top: 3rem; }
.mt-16 { margin-top: 4rem; }
.ml-2 { margin-left: 0.5rem; }
.space-y-1 > * + * { margin-top: 0.25rem; }
.space-y-2 > * + * { margin-top: 0.5rem; }
.space-y-3 > * + * { margin-top: 0.75rem; }
.space-y-4 > * + * { margin-top: 1rem; }

/* Typography */
.text-xs { font-size: 0.75rem; }
.text-sm { font-size: 0.875rem; }
.text-base { font-size: 1rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }
.text-3xl { font-size: 1.875rem; }
.text-4xl { font-size: 2.25rem; }
.font-bold { font-weight: 700; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.text-center { text-align: center; }
.text-white { color: #ffffff; }
.text-gray-400 { color: #9ca3af; }
.text-gray-500 { color: #6b7280; }
.text-gray-600 { color: #4b5563; }
.text-gray-700 { color: #374151; }
.text-gray-800 { color: #1f2937; }
.text-gray-900 { color: #111827; }
.text-blue-100 { color: #dbeafe; }
.text-blue-600 { color: #2563eb; }
.text-red-500 { color: #ef4444; }
.text-red-600 { color: #dc2626; }
.text-green-500 { color: #10b981; }
.leading-relaxed { line-height: 1.625; }
.whitespace-nowrap { white-space: nowrap; }

/* Background */
.bg-white { background-color: #ffffff; }
.bg-gray-50 { background-color: #f9fafb; }
.bg-gray-100 { background-color: #f3f4f6; }
.bg-gray-900 { background-color: #111827; }
.bg-blue-50 { background-color: #eff6ff; }
.bg-blue-100 { background-color: #dbeafe; }
.bg-blue-600 { background-color: #2563eb; }
.bg-green-50 { background-color: #f0fdf4; }
.bg-black { background-color: #000000; }
.bg-gradient-to-b { background-image: linear-gradient(to bottom, var(--tw-gradient-stops)); }
.bg-gradient-to-t { background-image: linear-gradient(to top, var(--tw-gradient-stops)); }
.from-white { --tw-gradient-from: #ffffff; --tw-gradient-to: rgba(255, 255, 255, 0); --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to); }
.from-black\/50 { --tw-gradient-from: rgba(0, 0, 0, 0.5); --tw-gradient-to: rgba(0, 0, 0, 0); --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to); }
.to-gray-50 { --tw-gradient-to: #f9fafb; }
.to-transparent { --tw-gradient-to: transparent; }
.bg-opacity-50 { background-color: rgba(0, 0, 0, 0.5); }

/* Border */
.border { border-width: 1px; }
.border-2 { border-width: 2px; }
.border-b { border-bottom-width: 1px; }
.border-t { border-top-width: 1px; }
.border-gray-300 { border-color: #d1d5db; }
.border-gray-800 { border-color: #1f2937; }
.border-blue-600 { border-color: #2563eb; }
.border-white { border-color: #ffffff; }
.border-transparent { border-color: transparent; }
.rounded-lg { border-radius: 0.5rem; }
.rounded-xl { border-radius: 0.75rem; }
.rounded-full { border-radius: 9999px; }

/* Focus */
.focus\:ring-2:focus { box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.5); outline: none; }
.focus\:ring-blue-500:focus { box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.5); }
.focus\:border-transparent:focus { border-color: transparent; }

/* Position */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.inset-0 { top: 0; right: 0; bottom: 0; left: 0; }
.top-0 { top: 0; }
.top-4 { top: 1rem; }
.right-0 { right: 0; }
.right-4 { right: 1rem; }
.left-0 { left: 0; }
.z-50 { z-index: 50; }

/* Display */
.hidden { display: none; }
.block { display: block; }
.inline-flex { display: inline-flex; }

/* Object */
.object-contain { object-fit: contain; }
.object-cover { object-fit: cover; }

/* Aspect Ratio */
.aspect-video { aspect-ratio: 16 / 9; }

/* Height */
.h-64 { height: 16rem; }
.h-72 { height: 18rem; }
.h-80 { height: 20rem; }
.h-96 { height: 24rem; }
.h-\[500px\] { height: 500px; }

/* Overflow */
.overflow-hidden { overflow: hidden; }

/* Cursor */
.cursor-pointer { cursor: pointer; }

/* Transform */
.transform { transform: translateZ(0); }
.-translate-y-1 { transform: translateY(-0.25rem); }
.group:hover .group-hover\:scale-105 { transform: scale(1.05); }

/* Transition */
.transition-colors { transition-property: color, background-color, border-color; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); transition-duration: 150ms; }
.transition-transform { transition-property: transform; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); transition-duration: 150ms; }
.duration-200 { transition-duration: 200ms; }
.duration-300 { transition-duration: 300ms; }
.duration-500 { transition-duration: 500ms; }

/* Shadow */
.shadow-sm { box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05); }
.shadow-md { box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06); }

/* Hover */
.hover\:bg-blue-50:hover { background-color: #eff6ff; }
.hover\:bg-blue-100:hover { background-color: #dbeafe; }
.hover\:bg-blue-700:hover { background-color: #1d4ed8; }
.hover\:bg-white:hover { background-color: #ffffff; }
.hover\:text-white:hover { color: #ffffff; }
.hover\:text-gray-600:hover { color: #4b5563; }
.hover\:text-blue-600:hover { color: #2563eb; }
.hover\:-translate-y-1:hover { transform: translateY(-0.25rem); }

/* Responsive - md (768px+) */
@media (min-width: 768px) {
    .md\:block { display: block; }
    .md\:hidden { display: none; }
    .md\:flex { display: flex; }
    .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .md\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    .md\:gap-6 { gap: 1.5rem; }
    .md\:gap-8 { gap: 2rem; }
    .md\:gap-12 { gap: 3rem; }
    .md\:py-20 { padding-top: 5rem; padding-bottom: 5rem; }
    .md\:mb-4 { margin-bottom: 1rem; }
    .md\:mb-6 { margin-bottom: 1.5rem; }
    .md\:mb-12 { margin-bottom: 3rem; }
    .md\:mb-16 { margin-bottom: 4rem; }
    .md\:text-base { font-size: 1rem; }
    .md\:text-lg { font-size: 1.125rem; }
    .md\:text-xl { font-size: 1.25rem; }
    .md\:text-2xl { font-size: 1.5rem; }
    .md\:text-3xl { font-size: 1.875rem; }
    .md\:text-4xl { font-size: 2.25rem; }
    .md\:p-6 { padding: 1.5rem; }
}

/* Responsive - sm (640px+) */
@media (min-width: 640px) {
    .sm\:flex-row { flex-direction: row; }
    .sm\:text-xl { font-size: 1.25rem; }
    .sm\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .sm\:h-72 { height: 18rem; }
    .sm\:h-96 { height: 24rem; }
}

/* Responsive - lg (1024px+) */
@media (min-width: 1024px) {
    .lg\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .lg\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    .lg\:gap-12 { gap: 3rem; }
    .lg\:text-3xl { font-size: 1.875rem; }
    .lg\:text-4xl { font-size: 2.25rem; }
}