/*!
 * Gori Teacher - Education Platform Styles
 * 統一CSSスタイルシート
 * 
 * @package Education Site
 * @version 1.0
 * @description Tailwind CSS風ユーティリティ + カスタムコンポーネント
 */

/* =================================================
   CSS Reset & Base Styles
================================================= */

*, *::before, *::after {
    box-sizing: border-box;
}

* {
    margin: 0;
    padding: 0;
}

html {
    font-family: 'Hiragino Sans', 'Hiragino Kaku Gothic ProN', 'Yu Gothic Medium', Meiryo, sans-serif;
    line-height: 1.5;
    -webkit-text-size-adjust: 100%;
    -moz-tab-size: 4;
    tab-size: 4;
    scroll-behavior: smooth;
}

body {
    font-family: inherit;
    line-height: inherit;
    color: #374151;
    background-color: #f9fafb;
    overflow-x: hidden;
}

img, picture, video, canvas, svg {
    display: block;
    max-width: 100%;
}

input, button, textarea, select {
    font: inherit;
}

p, h1, h2, h3, h4, h5, h6 {
    overflow-wrap: break-word;
}

#root, #__next {
    isolation: isolate;
}

/* =================================================
   Tailwind CSS風 ユーティリティクラス
================================================= */

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1rem;
    padding-right: 1rem;
}

@media (min-width: 640px) {
    .container {
        max-width: 640px;
        padding-left: 1.5rem;
        padding-right: 1.5rem;
    }
}

@media (min-width: 768px) {
    .container {
        max-width: 768px;
    }
}

@media (min-width: 1024px) {
    .container {
        max-width: 1024px;
    }
}

@media (min-width: 1280px) {
    .container {
        max-width: 1280px;
    }
}

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

/* Flexbox */
.flex-row { flex-direction: row; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.flex-nowrap { flex-wrap: nowrap; }

.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.items-center { align-items: center; }
.items-stretch { align-items: stretch; }

.justify-start { justify-content: flex-start; }
.justify-end { justify-content: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }

.flex-1 { flex: 1 1 0%; }
.flex-auto { flex: 1 1 auto; }
.flex-initial { flex: 0 1 auto; }
.flex-none { flex: none; }

/* Grid */
.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-cols-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.grid-cols-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }

.col-span-1 { grid-column: span 1 / span 1; }
.col-span-2 { grid-column: span 2 / span 2; }
.col-span-3 { grid-column: span 3 / span 3; }
.col-span-4 { grid-column: span 4 / span 4; }
.col-span-5 { grid-column: span 5 / span 5; }
.col-span-6 { grid-column: span 6 / span 6; }

.gap-1 { gap: 0.25rem; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.gap-5 { gap: 1.25rem; }
.gap-6 { gap: 1.5rem; }
.gap-8 { gap: 2rem; }
.gap-10 { gap: 2.5rem; }
.gap-12 { gap: 3rem; }

/* Positioning */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }

.top-0 { top: 0px; }
.right-0 { right: 0px; }
.bottom-0 { bottom: 0px; }
.left-0 { left: 0px; }

.top-4 { top: 1rem; }
.right-4 { right: 1rem; }
.bottom-4 { bottom: 1rem; }
.left-4 { left: 1rem; }

.z-10 { z-index: 10; }
.z-20 { z-index: 20; }
.z-30 { z-index: 30; }
.z-40 { z-index: 40; }
.z-50 { z-index: 50; }

/* Sizing */
.w-full { width: 100%; }
.w-auto { width: auto; }
.w-fit { width: fit-content; }
.w-1\/2 { width: 50%; }
.w-1\/3 { width: 33.333333%; }
.w-2\/3 { width: 66.666667%; }
.w-1\/4 { width: 25%; }
.w-3\/4 { width: 75%; }

.h-full { height: 100%; }
.h-auto { height: auto; }
.h-fit { height: fit-content; }
.h-screen { height: 100vh; }
.min-h-screen { min-height: 100vh; }

/* Spacing */
.m-0 { margin: 0px; }
.m-1 { margin: 0.25rem; }
.m-2 { margin: 0.5rem; }
.m-3 { margin: 0.75rem; }
.m-4 { margin: 1rem; }
.m-5 { margin: 1.25rem; }
.m-6 { margin: 1.5rem; }
.m-8 { margin: 2rem; }
.m-auto { margin: auto; }

.mx-auto { margin-left: auto; margin-right: auto; }
.my-auto { margin-top: auto; margin-bottom: auto; }

.mt-0 { margin-top: 0px; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }
.mt-5 { margin-top: 1.25rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-8 { margin-top: 2rem; }
.mt-10 { margin-top: 2.5rem; }
.mt-12 { margin-top: 3rem; }

.mb-0 { margin-bottom: 0px; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-5 { margin-bottom: 1.25rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mb-10 { margin-bottom: 2.5rem; }
.mb-12 { margin-bottom: 3rem; }

.ml-0 { margin-left: 0px; }
.ml-1 { margin-left: 0.25rem; }
.ml-2 { margin-left: 0.5rem; }
.ml-3 { margin-left: 0.75rem; }
.ml-4 { margin-left: 1rem; }
.ml-auto { margin-left: auto; }

.mr-0 { margin-right: 0px; }
.mr-1 { margin-right: 0.25rem; }
.mr-2 { margin-right: 0.5rem; }
.mr-3 { margin-right: 0.75rem; }
.mr-4 { margin-right: 1rem; }
.mr-auto { margin-right: auto; }

.p-0 { padding: 0px; }
.p-1 { padding: 0.25rem; }
.p-2 { padding: 0.5rem; }
.p-3 { padding: 0.75rem; }
.p-4 { padding: 1rem; }
.p-5 { padding: 1.25rem; }
.p-6 { padding: 1.5rem; }
.p-8 { padding: 2rem; }

.px-0 { padding-left: 0px; padding-right: 0px; }
.px-1 { padding-left: 0.25rem; padding-right: 0.25rem; }
.px-2 { padding-left: 0.5rem; padding-right: 0.5rem; }
.px-3 { padding-left: 0.75rem; padding-right: 0.75rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.px-5 { padding-left: 1.25rem; padding-right: 1.25rem; }
.px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
.px-8 { padding-left: 2rem; padding-right: 2rem; }

.py-0 { padding-top: 0px; padding-bottom: 0px; }
.py-1 { padding-top: 0.25rem; padding-bottom: 0.25rem; }
.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-5 { padding-top: 1.25rem; padding-bottom: 1.25rem; }
.py-6 { padding-top: 1.5rem; padding-bottom: 1.5rem; }
.py-8 { padding-top: 2rem; padding-bottom: 2rem; }

.pt-4 { padding-top: 1rem; }
.pt-8 { padding-top: 2rem; }
.pb-4 { padding-bottom: 1rem; }
.pb-8 { padding-bottom: 2rem; }
.pl-4 { padding-left: 1rem; }
.pr-4 { padding-right: 1rem; }

/* Typography */
.text-xs { font-size: 0.75rem; line-height: 1rem; }
.text-sm { font-size: 0.875rem; line-height: 1.25rem; }
.text-base { font-size: 1rem; line-height: 1.5rem; }
.text-lg { font-size: 1.125rem; line-height: 1.75rem; }
.text-xl { font-size: 1.25rem; line-height: 1.75rem; }
.text-2xl { font-size: 1.5rem; line-height: 2rem; }
.text-3xl { font-size: 1.875rem; line-height: 2.25rem; }
.text-4xl { font-size: 2.25rem; line-height: 2.5rem; }

.font-thin { font-weight: 100; }
.font-light { font-weight: 300; }
.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.font-extrabold { font-weight: 800; }

.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }

.leading-none { line-height: 1; }
.leading-tight { line-height: 1.25; }
.leading-normal { line-height: 1.5; }
.leading-relaxed { line-height: 1.625; }
.leading-loose { line-height: 2; }

/* Colors */
.text-white { color: #ffffff; }
.text-gray-50 { color: #f9fafb; }
.text-gray-100 { color: #f3f4f6; }
.text-gray-200 { color: #e5e7eb; }
.text-gray-300 { color: #d1d5db; }
.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-50 { color: #eff6ff; }
.text-blue-100 { color: #dbeafe; }
.text-blue-200 { color: #bfdbfe; }
.text-blue-300 { color: #93c5fd; }
.text-blue-400 { color: #60a5fa; }
.text-blue-500 { color: #3b82f6; }
.text-blue-600 { color: #2563eb; }
.text-blue-700 { color: #1d4ed8; }
.text-blue-800 { color: #1e40af; }
.text-blue-900 { color: #1e3a8a; }

.text-green-50 { color: #ecfdf5; }
.text-green-100 { color: #d1fae5; }
.text-green-200 { color: #a7f3d0; }
.text-green-300 { color: #6ee7b7; }
.text-green-400 { color: #34d399; }
.text-green-500 { color: #10b981; }
.text-green-600 { color: #059669; }
.text-green-700 { color: #047857; }
.text-green-800 { color: #065f46; }
.text-green-900 { color: #064e3b; }

.text-red-50 { color: #fef2f2; }
.text-red-100 { color: #fee2e2; }
.text-red-200 { color: #fecaca; }
.text-red-300 { color: #fca5a5; }
.text-red-400 { color: #f87171; }
.text-red-500 { color: #ef4444; }
.text-red-600 { color: #dc2626; }
.text-red-700 { color: #b91c1c; }
.text-red-800 { color: #991b1b; }
.text-red-900 { color: #7f1d1d; }

.text-yellow-50 { color: #fffbeb; }
.text-yellow-100 { color: #fef3c7; }
.text-yellow-200 { color: #fde68a; }
.text-yellow-300 { color: #fcd34d; }
.text-yellow-400 { color: #fbbf24; }
.text-yellow-500 { color: #f59e0b; }
.text-yellow-600 { color: #d97706; }
.text-yellow-700 { color: #b45309; }
.text-yellow-800 { color: #92400e; }
.text-yellow-900 { color: #78350f; }

.text-purple-50 { color: #faf5ff; }
.text-purple-100 { color: #f3e8ff; }
.text-purple-200 { color: #e9d5ff; }
.text-purple-300 { color: #d8b4fe; }
.text-purple-400 { color: #c084fc; }
.text-purple-500 { color: #a855f7; }
.text-purple-600 { color: #9333ea; }
.text-purple-700 { color: #7c3aed; }
.text-purple-800 { color: #6b21a8; }
.text-purple-900 { color: #581c87; }

/* Background Colors */
.bg-white { background-color: #ffffff; }
.bg-gray-50 { background-color: #f9fafb; }
.bg-gray-100 { background-color: #f3f4f6; }
.bg-gray-200 { background-color: #e5e7eb; }
.bg-gray-300 { background-color: #d1d5db; }
.bg-gray-400 { background-color: #9ca3af; }
.bg-gray-500 { background-color: #6b7280; }
.bg-gray-600 { background-color: #4b5563; }
.bg-gray-700 { background-color: #374151; }
.bg-gray-800 { background-color: #1f2937; }
.bg-gray-900 { background-color: #111827; }

.bg-blue-50 { background-color: #eff6ff; }
.bg-blue-100 { background-color: #dbeafe; }
.bg-blue-200 { background-color: #bfdbfe; }
.bg-blue-300 { background-color: #93c5fd; }
.bg-blue-400 { background-color: #60a5fa; }
.bg-blue-500 { background-color: #3b82f6; }
.bg-blue-600 { background-color: #2563eb; }
.bg-blue-700 { background-color: #1d4ed8; }
.bg-blue-800 { background-color: #1e40af; }
.bg-blue-900 { background-color: #1e3a8a; }

.bg-green-50 { background-color: #ecfdf5; }
.bg-green-100 { background-color: #d1fae5; }
.bg-green-200 { background-color: #a7f3d0; }
.bg-green-300 { background-color: #6ee7b7; }
.bg-green-400 { background-color: #34d399; }
.bg-green-500 { background-color: #10b981; }
.bg-green-600 { background-color: #059669; }
.bg-green-700 { background-color: #047857; }
.bg-green-800 { background-color: #065f46; }
.bg-green-900 { background-color: #064e3b; }

.bg-red-50 { background-color: #fef2f2; }
.bg-red-100 { background-color: #fee2e2; }
.bg-red-200 { background-color: #fecaca; }
.bg-red-300 { background-color: #fca5a5; }
.bg-red-400 { background-color: #f87171; }
.bg-red-500 { background-color: #ef4444; }
.bg-red-600 { background-color: #dc2626; }
.bg-red-700 { background-color: #b91c1c; }
.bg-red-800 { background-color: #991b1b; }
.bg-red-900 { background-color: #7f1d1d; }

.bg-yellow-50 { background-color: #fffbeb; }
.bg-yellow-100 { background-color: #fef3c7; }
.bg-yellow-200 { background-color: #fde68a; }
.bg-yellow-300 { background-color: #fcd34d; }
.bg-yellow-400 { background-color: #fbbf24; }
.bg-yellow-500 { background-color: #f59e0b; }
.bg-yellow-600 { background-color: #d97706; }
.bg-yellow-700 { background-color: #b45309; }
.bg-yellow-800 { background-color: #92400e; }
.bg-yellow-900 { background-color: #78350f; }

.bg-purple-50 { background-color: #faf5ff; }
.bg-purple-100 { background-color: #f3e8ff; }
.bg-purple-200 { background-color: #e9d5ff; }
.bg-purple-300 { background-color: #d8b4fe; }
.bg-purple-400 { background-color: #c084fc; }
.bg-purple-500 { background-color: #a855f7; }
.bg-purple-600 { background-color: #9333ea; }
.bg-purple-700 { background-color: #7c3aed; }
.bg-purple-800 { background-color: #6b21a8; }
.bg-purple-900 { background-color: #581c87; }

/* Border */
.border { border-width: 1px; }
.border-0 { border-width: 0px; }
.border-2 { border-width: 2px; }
.border-4 { border-width: 4px; }
.border-8 { border-width: 8px; }

.border-t { border-top-width: 1px; }
.border-r { border-right-width: 1px; }
.border-b { border-bottom-width: 1px; }
.border-l { border-left-width: 1px; }

.border-gray-100 { border-color: #f3f4f6; }
.border-gray-200 { border-color: #e5e7eb; }
.border-gray-300 { border-color: #d1d5db; }
.border-gray-400 { border-color: #9ca3af; }
.border-gray-500 { border-color: #6b7280; }

.border-blue-200 { border-color: #bfdbfe; }
.border-blue-300 { border-color: #93c5fd; }
.border-blue-400 { border-color: #60a5fa; }
.border-blue-500 { border-color: #3b82f6; }

.border-green-200 { border-color: #a7f3d0; }
.border-green-300 { border-color: #6ee7b7; }
.border-green-400 { border-color: #34d399; }
.border-green-500 { border-color: #10b981; }

.border-red-200 { border-color: #fecaca; }
.border-red-300 { border-color: #fca5a5; }
.border-red-400 { border-color: #f87171; }
.border-red-500 { border-color: #ef4444; }

.rounded { border-radius: 0.25rem; }
.rounded-sm { border-radius: 0.125rem; }
.rounded-md { border-radius: 0.375rem; }
.rounded-lg { border-radius: 0.5rem; }
.rounded-xl { border-radius: 0.75rem; }
.rounded-2xl { border-radius: 1rem; }
.rounded-3xl { border-radius: 1.5rem; }
.rounded-full { border-radius: 9999px; }

/* Shadow */
.shadow-sm { box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05); }
.shadow { box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06); }
.shadow-md { box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06); }
.shadow-lg { box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05); }
.shadow-xl { box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04); }
.shadow-2xl { box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25); }
.shadow-none { box-shadow: none; }

/* Transitions */
.transition-all { transition: all 150ms cubic-bezier(0.4, 0, 0.2, 1); }
.transition-colors { transition: background-color 150ms cubic-bezier(0.4, 0, 0.2, 1), border-color 150ms cubic-bezier(0.4, 0, 0.2, 1), color 150ms cubic-bezier(0.4, 0, 0.2, 1); }
.transition-opacity { transition: opacity 150ms cubic-bezier(0.4, 0, 0.2, 1); }
.transition-shadow { transition: box-shadow 150ms cubic-bezier(0.4, 0, 0.2, 1); }
.transition-transform { transition: transform 150ms cubic-bezier(0.4, 0, 0.2, 1); }

.duration-75 { transition-duration: 75ms; }
.duration-100 { transition-duration: 100ms; }
.duration-150 { transition-duration: 150ms; }
.duration-200 { transition-duration: 200ms; }
.duration-300 { transition-duration: 300ms; }
.duration-500 { transition-duration: 500ms; }
.duration-700 { transition-duration: 700ms; }
.duration-1000 { transition-duration: 1000ms; }

.ease-in { transition-timing-function: cubic-bezier(0.4, 0, 1, 1); }
.ease-out { transition-timing-function: cubic-bezier(0, 0, 0.2, 1); }
.ease-in-out { transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); }

/* Transform */
.transform { transform: translateX(var(--tw-translate-x, 0)) translateY(var(--tw-translate-y, 0)) rotate(var(--tw-rotate, 0)) skewX(var(--tw-skew-x, 0)) skewY(var(--tw-skew-y, 0)) scaleX(var(--tw-scale-x, 1)) scaleY(var(--tw-scale-y, 1)); }
.translate-x-0 { --tw-translate-x: 0px; }
.translate-y-0 { --tw-translate-y: 0px; }
.-translate-y-1 { --tw-translate-y: -0.25rem; }
.-translate-y-2 { --tw-translate-y: -0.5rem; }
.scale-95 { --tw-scale-x: 0.95; --tw-scale-y: 0.95; }
.scale-100 { --tw-scale-x: 1; --tw-scale-y: 1; }
.scale-105 { --tw-scale-x: 1.05; --tw-scale-y: 1.05; }
.scale-110 { --tw-scale-x: 1.1; --tw-scale-y: 1.1; }

/* Hover Effects */
.hover\:bg-gray-50:hover { background-color: #f9fafb; }
.hover\:bg-gray-100:hover { background-color: #f3f4f6; }
.hover\:bg-blue-50:hover { background-color: #eff6ff; }
.hover\:bg-blue-600:hover { background-color: #2563eb; }
.hover\:bg-blue-700:hover { background-color: #1d4ed8; }
.hover\:bg-green-600:hover { background-color: #059669; }
.hover\:bg-green-700:hover { background-color: #047857; }
.hover\:bg-red-600:hover { background-color: #dc2626; }
.hover\:bg-red-700:hover { background-color: #b91c1c; }

.hover\:text-gray-700:hover { color: #374151; }
.hover\:text-gray-800:hover { color: #1f2937; }
.hover\:text-blue-600:hover { color: #2563eb; }
.hover\:text-blue-700:hover { color: #1d4ed8; }
.hover\:text-blue-800:hover { color: #1e40af; }

.hover\:shadow-md:hover { box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06); }
.hover\:shadow-lg:hover { box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05); }
.hover\:shadow-xl:hover { box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04); }

.hover\:-translate-y-1:hover { --tw-translate-y: -0.25rem; }
.hover\:-translate-y-2:hover { --tw-translate-y: -0.5rem; }
.hover\:scale-105:hover { --tw-scale-x: 1.05; --tw-scale-y: 1.05; }

/* Focus Effects */
.focus\:outline-none:focus { outline: 2px solid transparent; outline-offset: 2px; }
.focus\:ring-2:focus { --tw-ring-offset-shadow: var(--tw-ring-inset) 0 0 0 var(--tw-ring-offset-width) var(--tw-ring-offset-color); --tw-ring-shadow: var(--tw-ring-inset) 0 0 0 calc(2px + var(--tw-ring-offset-width)) var(--tw-ring-color); box-shadow: var(--tw-ring-offset-shadow), var(--tw-ring-shadow), var(--tw-shadow, 0 0 #0000); }
.focus\:ring-blue-500:focus { --tw-ring-color: #3b82f6; }
.focus\:ring-blue-200:focus { --tw-ring-color: #bfdbfe; }
.focus\:border-blue-500:focus { border-color: #3b82f6; }
.focus\:border-blue-300:focus { border-color: #93c5fd; }

/* Space Between */
.space-x-1 > :not([hidden]) ~ :not([hidden]) { --tw-space-x-reverse: 0; margin-right: calc(0.25rem * var(--tw-space-x-reverse)); margin-left: calc(0.25rem * calc(1 - var(--tw-space-x-reverse))); }
.space-x-2 > :not([hidden]) ~ :not([hidden]) { --tw-space-x-reverse: 0; margin-right: calc(0.5rem * var(--tw-space-x-reverse)); margin-left: calc(0.5rem * calc(1 - var(--tw-space-x-reverse))); }
.space-x-3 > :not([hidden]) ~ :not([hidden]) { --tw-space-x-reverse: 0; margin-right: calc(0.75rem * var(--tw-space-x-reverse)); margin-left: calc(0.75rem * calc(1 - var(--tw-space-x-reverse))); }
.space-x-4 > :not([hidden]) ~ :not([hidden]) { --tw-space-x-reverse: 0; margin-right: calc(1rem * var(--tw-space-x-reverse)); margin-left: calc(1rem * calc(1 - var(--tw-space-x-reverse))); }
.space-x-6 > :not([hidden]) ~ :not([hidden]) { --tw-space-x-reverse: 0; margin-right: calc(1.5rem * var(--tw-space-x-reverse)); margin-left: calc(1.5rem * calc(1 - var(--tw-space-x-reverse))); }

.space-y-1 > :not([hidden]) ~ :not([hidden]) { --tw-space-y-reverse: 0; margin-top: calc(0.25rem * calc(1 - var(--tw-space-y-reverse))); margin-bottom: calc(0.25rem * var(--tw-space-y-reverse)); }
.space-y-2 > :not([hidden]) ~ :not([hidden]) { --tw-space-y-reverse: 0; margin-top: calc(0.5rem * calc(1 - var(--tw-space-y-reverse))); margin-bottom: calc(0.5rem * var(--tw-space-y-reverse)); }
.space-y-3 > :not([hidden]) ~ :not([hidden]) { --tw-space-y-reverse: 0; margin-top: calc(0.75rem * calc(1 - var(--tw-space-y-reverse))); margin-bottom: calc(0.75rem * var(--tw-space-y-reverse)); }
.space-y-4 > :not([hidden]) ~ :not([hidden]) { --tw-space-y-reverse: 0; margin-top: calc(1rem * calc(1 - var(--tw-space-y-reverse))); margin-bottom: calc(1rem * var(--tw-space-y-reverse)); }
.space-y-6 > :not([hidden]) ~ :not([hidden]) { --tw-space-y-reverse: 0; margin-top: calc(1.5rem * calc(1 - var(--tw-space-y-reverse))); margin-bottom: calc(1.5rem * var(--tw-space-y-reverse)); }

/* =================================================
   カスタムコンポーネント
================================================= */

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    line-height: 1.25rem;
    border-radius: 0.5rem;
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    white-space: nowrap;
    user-select: none;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.btn-primary {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    color: #ffffff;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
}

.btn-primary:hover:not(:disabled) {
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    transform: translateY(-1px);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.btn-secondary {
    background-color: #6b7280;
    color: #ffffff;
}

.btn-secondary:hover:not(:disabled) {
    background-color: #4b5563;
    transform: translateY(-1px);
}

.btn-success {
    background: linear-gradient(135deg, #10b981, #059669);
    color: #ffffff;
}

.btn-success:hover:not(:disabled) {
    background: linear-gradient(135deg, #059669, #047857);
    transform: translateY(-1px);
}

.btn-danger {
    background: linear-gradient(135deg, #ef4444, #dc2626);
    color: #ffffff;
}

.btn-danger:hover:not(:disabled) {
    background: linear-gradient(135deg, #dc2626, #b91c1c);
    transform: translateY(-1px);
}

.btn-warning {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: #ffffff;
}

.btn-warning:hover:not(:disabled) {
    background: linear-gradient(135deg, #d97706, #b45309);
    transform: translateY(-1px);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid #e5e7eb;
    color: #374151;
}

.btn-outline:hover:not(:disabled) {
    background-color: #f9fafb;
    border-color: #d1d5db;
    transform: translateY(-1px);
}

.btn-outline-primary {
    background-color: transparent;
    border: 2px solid #3b82f6;
    color: #3b82f6;
}

.btn-outline-primary:hover:not(:disabled) {
    background-color: #3b82f6;
    color: #ffffff;
    transform: translateY(-1px);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

.btn-xl {
    padding: 1.25rem 2.5rem;
    font-size: 1.125rem;
}

.btn-full {
    width: 100%;
}

/* Cards */
.card {
    background-color: #ffffff;
    border-radius: 0.75rem;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    overflow: hidden;
    transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

.card:hover {
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    transform: translateY(-1px);
}

.card-header {
    padding: 1.5rem;
    border-bottom: 1px solid #e5e7eb;
    background-color: #f9fafb;
}

.card-body {
    padding: 1.5rem;
}

.card-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid #e5e7eb;
    background-color: #f9fafb;
}

.card-interactive {
    cursor: pointer;
    user-select: none;
}

.card-interactive:hover {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    transform: translateY(-2px);
}

/* Form Elements */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: #374151;
    margin-bottom: 0.5rem;
}

.form-control {
    display: block;
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
    line-height: 1.25rem;
    color: #374151;
    background-color: #ffffff;
    background-image: none;
    border: 2px solid #e5e7eb;
    border-radius: 0.5rem;
    transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

.form-control:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-control:disabled {
    background-color: #f3f4f6;
    color: #6b7280;
    cursor: not-allowed;
}

.form-control.is-invalid {
    border-color: #ef4444;
}

.form-control.is-invalid:focus {
    border-color: #ef4444;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.form-control.is-valid {
    border-color: #10b981;
}

.form-control.is-valid:focus {
    border-color: #10b981;
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.form-select {
    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3E%3Cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3E%3C/svg%3E");
    background-position: right 0.5rem center;
    background-repeat: no-repeat;
    background-size: 1.5em 1.5em;
    padding-right: 2.5rem;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
}

.form-textarea {
    resize: vertical;
    min-height: 6rem;
}

.form-check {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.form-check-input {
    flex-shrink: 0;
    width: 1rem;
    height: 1rem;
    margin-right: 0.5rem;
    background-color: #ffffff;
    border: 2px solid #d1d5db;
    border-radius: 0.25rem;
    appearance: none;
    cursor: pointer;
    transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

.form-check-input:checked {
    background-color: #3b82f6;
    border-color: #3b82f6;
    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg viewBox='0 0 16 16' fill='%23fff' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M12.207 4.793a1 1 0 0 1 0 1.414l-5 5a1 1 0 0 1-1.414 0l-2-2a1 1 0 0 1 1.414-1.414L6.5 9.086l4.293-4.293a1 1 0 0 1 1.414 0z'/%3E%3C/svg%3E");
}

.form-check-input:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-check-label {
    font-size: 0.875rem;
    color: #374151;
    cursor: pointer;
}

.form-error {
    font-size: 0.75rem;
    color: #ef4444;
    margin-top: 0.25rem;
}

.form-help {
    font-size: 0.75rem;
    color: #6b7280;
    margin-top: 0.25rem;
}

/* Alerts */
.alert {
    position: relative;
    padding: 1rem;
    margin-bottom: 1rem;
    border: 1px solid transparent;
    border-radius: 0.5rem;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.alert-primary {
    color: #1e40af;
    background-color: #dbeafe;
    border-color: #93c5fd;
}

.alert-secondary {
    color: #374151;
    background-color: #f3f4f6;
    border-color: #d1d5db;
}

.alert-success {
    color: #065f46;
    background-color: #d1fae5;
    border-color: #a7f3d0;
}

.alert-danger {
    color: #991b1b;
    background-color: #fee2e2;
    border-color: #fca5a5;
}

.alert-warning {
    color: #92400e;
    background-color: #fef3c7;
    border-color: #fcd34d;
}

.alert-info {
    color: #1e40af;
    background-color: #dbeafe;
    border-color: #93c5fd;
}

.alert-dismissible {
    padding-right: 3rem;
}

.alert-close {
    position: absolute;
    top: 0;
    right: 0;
    z-index: 2;
    padding: 1rem;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.25rem;
    line-height: 1;
    color: inherit;
    opacity: 0.5;
    transition: opacity 0.15s;
}

.alert-close:hover {
    opacity: 1;
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    line-height: 1;
    color: #ffffff;
    text-align: center;
    white-space: nowrap;
    vertical-align: baseline;
    border-radius: 9999px;
}

.badge-primary {
    background-color: #3b82f6;
}

.badge-secondary {
    background-color: #6b7280;
}

.badge-success {
    background-color: #10b981;
}

.badge-danger {
    background-color: #ef4444;
}

.badge-warning {
    background-color: #f59e0b;
    color: #92400e;
}

.badge-info {
    background-color: #06b6d4;
}

.badge-light {
    background-color: #f3f4f6;
    color: #374151;
}

.badge-dark {
    background-color: #1f2937;
}

.badge-outline-primary {
    background-color: transparent;
    border: 1px solid #3b82f6;
    color: #3b82f6;
}

.badge-outline-success {
    background-color: transparent;
    border: 1px solid #10b981;
    color: #10b981;
}

.badge-outline-danger {
    background-color: transparent;
    border: 1px solid #ef4444;
    color: #ef4444;
}

/* Progress Bars */
.progress {
    display: flex;
    height: 1rem;
    overflow: hidden;
    background-color: #e5e7eb;
    border-radius: 0.5rem;
}

.progress-bar {
    display: flex;
    flex-direction: column;
    justify-content: center;
    overflow: hidden;
    color: #ffffff;
    text-align: center;
    white-space: nowrap;
    background-color: #3b82f6;
    transition: width 0.6s ease;
}

.progress-bar-striped {
    background-image: linear-gradient(45deg, rgba(255, 255, 255, 0.15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, 0.15) 50%, rgba(255, 255, 255, 0.15) 75%, transparent 75%, transparent);
    background-size: 1rem 1rem;
}

.progress-bar-animated {
    animation: progress-bar-stripes 1s linear infinite;
}

@keyframes progress-bar-stripes {
    0% {
        background-position-x: 1rem;
    }
    100% {
        background-position-x: 0;
    }
}

.progress-sm {
    height: 0.5rem;
}

.progress-lg {
    height: 1.5rem;
}

/* Spinners */
.spinner {
    display: inline-block;
    width: 1.5rem;
    height: 1.5rem;
    vertical-align: text-bottom;
    border: 0.125rem solid currentcolor;
    border-right-color: transparent;
    border-radius: 50%;
    animation: spinner-border 0.75s linear infinite;
}

@keyframes spinner-border {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

.spinner-sm {
    width: 1rem;
    height: 1rem;
    border-width: 0.0625rem;
}

.spinner-lg {
    width: 2rem;
    height: 2rem;
    border-width: 0.25rem;
}

/* Tooltips */
.tooltip {
    position: relative;
    display: inline-block;
}

.tooltip .tooltiptext {
    visibility: hidden;
    width: 140px;
    background-color: #1f2937;
    color: #ffffff;
    text-align: center;
    border-radius: 6px;
    padding: 8px 12px;
    font-size: 0.75rem;
    position: absolute;
    z-index: 1000;
    bottom: 125%;
    left: 50%;
    margin-left: -70px;
    opacity: 0;
    transition: opacity 0.3s;
}

.tooltip .tooltiptext::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 50%;
    margin-left: -5px;
    border-width: 5px;
    border-style: solid;
    border-color: #1f2937 transparent transparent transparent;
}

.tooltip:hover .tooltiptext {
    visibility: visible;
    opacity: 1;
}

/* Dropdowns */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-content {
    display: none;
    position: absolute;
    background-color: #ffffff;
    min-width: 200px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    border-radius: 0.5rem;
    z-index: 1000;
    border: 1px solid #e5e7eb;
    padding: 0.5rem 0;
    top: 100%;
    left: 0;
}

.dropdown-content.show {
    display: block;
}

.dropdown-item {
    display: block;
    width: 100%;
    padding: 0.5rem 1rem;
    clear: both;
    font-weight: 400;
    color: #374151;
    text-align: inherit;
    text-decoration: none;
    white-space: nowrap;
    background-color: transparent;
    border: 0;
    font-size: 0.875rem;
}

.dropdown-item:hover,
.dropdown-item:focus {
    color: #1f2937;
    background-color: #f3f4f6;
}

.dropdown-divider {
    height: 0;
    margin: 0.5rem 0;
    overflow: hidden;
    border-top: 1px solid #e5e7eb;
}

/* Modals */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1050;
    display: none;
    width: 100%;
    height: 100%;
    overflow: hidden;
    outline: 0;
    background-color: rgba(0, 0, 0, 0.5);
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-dialog {
    position: relative;
    width: auto;
    margin: 1.75rem;
    pointer-events: none;
    max-width: 500px;
}

.modal-content {
    position: relative;
    display: flex;
    flex-direction: column;
    width: 100%;
    pointer-events: auto;
    background-color: #ffffff;
    background-clip: padding-box;
    border-radius: 0.75rem;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    outline: 0;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem;
    border-bottom: 1px solid #e5e7eb;
    border-top-left-radius: 0.75rem;
    border-top-right-radius: 0.75rem;
}

.modal-title {
    margin-bottom: 0;
    line-height: 1.5;
    font-size: 1.25rem;
    font-weight: 600;
    color: #1f2937;
}

.modal-body {
    position: relative;
    flex: 1 1 auto;
    padding: 1.5rem;
}

.modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    border-top: 1px solid #e5e7eb;
    border-bottom-left-radius: 0.75rem;
    border-bottom-right-radius: 0.75rem;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1;
    color: #6b7280;
    cursor: pointer;
    padding: 0;
    opacity: 0.5;
    transition: opacity 0.15s;
}

.modal-close:hover {
    opacity: 1;
}

/* Navigation */
.nav {
    display: flex;
    flex-wrap: wrap;
    padding-left: 0;
    margin-bottom: 0;
    list-style: none;
}

.nav-link {
    display: block;
    padding: 0.5rem 1rem;
    color: #6b7280;
    text-decoration: none;
    transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid transparent;
    border-radius: 0.375rem;
}

.nav-link:hover,
.nav-link:focus {
    color: #374151;
    background-color: #f3f4f6;
}

.nav-link.active {
    color: #3b82f6;
    background-color: #eff6ff;
    border-color: #bfdbfe;
}

.nav-link:disabled,
.nav-link.disabled {
    color: #9ca3af;
    pointer-events: none;
    cursor: default;
    background-color: transparent;
}

.nav-tabs {
    border-bottom: 1px solid #e5e7eb;
}

.nav-tabs .nav-link {
    margin-bottom: -1px;
    border: 1px solid transparent;
    border-top-left-radius: 0.375rem;
    border-top-right-radius: 0.375rem;
}

.nav-tabs .nav-link:hover,
.nav-tabs .nav-link:focus {
    border-color: #e5e7eb #e5e7eb #e5e7eb;
    isolation: isolate;
}

.nav-tabs .nav-link.active {
    color: #374151;
    background-color: #ffffff;
    border-color: #e5e7eb #e5e7eb #ffffff;
}

/* Tables */
.table {
    width: 100%;
    margin-bottom: 1rem;
    vertical-align: top;
    border-collapse: collapse;
}

.table th,
.table td {
    padding: 0.75rem;
    vertical-align: top;
    border-bottom: 1px solid #e5e7eb;
    text-align: left;
}

.table th {
    font-weight: 600;
    color: #374151;
    background-color: #f9fafb;
    border-bottom: 2px solid #e5e7eb;
}

.table-striped tbody tr:nth-of-type(odd) {
    background-color: #f9fafb;
}

.table-hover tbody tr:hover {
    background-color: #f3f4f6;
}

.table-bordered {
    border: 1px solid #e5e7eb;
}

.table-bordered th,
.table-bordered td {
    border: 1px solid #e5e7eb;
}

.table-borderless th,
.table-borderless td,
.table-borderless thead th,
.table-borderless tbody + tbody {
    border: 0;
}

/* Responsive Tables */
.table-responsive {
    display: block;
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

/* Pagination */
.pagination {
    display: flex;
    padding-left: 0;
    list-style: none;
    border-radius: 0.375rem;
}

.pagination-nav {
    display: flex;
    justify-content: center;
    margin-top: 2rem;
}

.page-item {
    margin: 0 0.125rem;
}

.page-link {
    position: relative;
    display: block;
    padding: 0.5rem 0.75rem;
    margin-left: 0;
    line-height: 1.25;
    color: #6b7280;
    text-decoration: none;
    background-color: #ffffff;
    border: 1px solid #d1d5db;
    border-radius: 0.375rem;
    transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

.page-link:hover {
    z-index: 2;
    color: #374151;
    background-color: #f3f4f6;
    border-color: #d1d5db;
}

.page-link:focus {
    z-index: 3;
    outline: 0;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.25);
}

.page-item.active .page-link {
    z-index: 3;
    color: #ffffff;
    background-color: #3b82f6;
    border-color: #3b82f6;
}

.page-item.disabled .page-link {
    color: #9ca3af;
    pointer-events: none;
    background-color: #ffffff;
    border-color: #d1d5db;
}

/* Breadcrumb */
.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    padding: 0.75rem 1rem;
    margin-bottom: 1rem;
    list-style: none;
    background-color: #f3f4f6;
    border-radius: 0.375rem;
}

.breadcrumb-item {
    display: flex;
}

.breadcrumb-item + .breadcrumb-item {
    padding-left: 0.5rem;
}

.breadcrumb-item + .breadcrumb-item::before {
    display: inline-block;
    padding-right: 0.5rem;
    color: #6b7280;
    content: "/";
}

.breadcrumb-item.active {
    color: #6b7280;
}

/* =================================================
   アニメーション・エフェクト
================================================= */

/* Fade In */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.fade-in {
    animation: fadeIn 0.5s ease-in;
}

/* Fade In Up */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Slide In Left */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.slide-in-left {
    animation: slideInLeft 0.5s ease-out;
}

/* Slide In Right */
@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.slide-in-right {
    animation: slideInRight 0.5s ease-out;
}

/* Bounce */
@keyframes bounce {
    0%, 20%, 53%, 80%, 100% {
        transform: translateY(0);
    }
    40%, 43% {
        transform: translateY(-30px);
    }
    70% {
        transform: translateY(-15px);
    }
    90% {
        transform: translateY(-4px);
    }
}

.bounce {
    animation: bounce 1s ease-in-out;
}

/* Pulse */
@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

.pulse {
    animation: pulse 2s infinite;
}

/* Shake */
@keyframes shake {
    0%, 100% {
        transform: translateX(0);
    }
    10%, 30%, 50%, 70%, 90% {
        transform: translateX(-5px);
    }
    20%, 40%, 60%, 80% {
        transform: translateX(5px);
    }
}

.shake {
    animation: shake 0.6s ease-in-out;
}

/* Loading */
@keyframes loading {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

.loading {
    animation: loading 1s linear infinite;
}

/* =================================================
   レスポンシブデザイン
================================================= */

@media (max-width: 640px) {
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    .btn {
        padding: 0.625rem 1.25rem;
        font-size: 0.875rem;
    }
    
    .btn-sm {
        padding: 0.375rem 0.75rem;
        font-size: 0.75rem;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    .modal-dialog {
        margin: 0.5rem;
        max-width: calc(100% - 1rem);
    }
    
    .table-responsive {
        font-size: 0.875rem;
    }
    
    .form-control {
        font-size: 1rem; /* Prevent zoom on iOS */
    }
}

@media (max-width: 768px) {
    .grid-cols-2 {
        grid-template-columns: repeat(1, minmax(0, 1fr));
    }
    
    .grid-cols-3 {
        grid-template-columns: repeat(1, minmax(0, 1fr));
    }
    
    .grid-cols-4 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    
    .flex-col-reverse {
        flex-direction: column-reverse;
    }
    
    .text-center-mobile {
        text-align: center;
    }
    
    .hidden-mobile {
        display: none;
    }
    
    .block-mobile {
        display: block;
    }
    
    .full-width-mobile {
        width: 100%;
    }
}

@media (min-width: 768px) {
    .grid-cols-md-2 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    
    .grid-cols-md-3 {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
    
    .grid-cols-md-4 {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
    
    .hidden-desktop {
        display: none;
    }
}

@media (min-width: 1024px) {
    .grid-cols-lg-2 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    
    .grid-cols-lg-3 {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
    
    .grid-cols-lg-4 {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
    
    .grid-cols-lg-5 {
        grid-template-columns: repeat(5, minmax(0, 1fr));
    }
}

/* =================================================
   印刷対応
================================================= */

@media print {
    .no-print {
        display: none !important;
    }
    
    .print-break {
        page-break-after: always;
    }
    
    .print-break-inside {
        page-break-inside: avoid;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
        color: #000 !important;
        background: #fff !important;
    }
    
    .container {
        max-width: none;
        padding: 0;
    }
    
    .card {
        border: 1px solid #000;
        box-shadow: none;
    }
    
    .btn {
        border: 1px solid #000;
        background: #fff !important;
        color: #000 !important;
    }
}

/* =================================================
   ダークモード対応（将来の拡張用）
================================================= */

@media (prefers-color-scheme: dark) {
    .dark-mode-auto {
        background-color: #1f2937;
        color: #f9fafb;
    }
    
    .dark-mode-auto .card {
        background-color: #374151;
        color: #f9fafb;
    }
    
    .dark-mode-auto .form-control {
        background-color: #374151;
        color: #f9fafb;
        border-color: #4b5563;
    }
    
    .dark-mode-auto .form-control:focus {
        border-color: #60a5fa;
        box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.1);
    }
}

/* =================================================
   アクセシビリティ
================================================= */

/* フォーカス表示の改善 */
:focus-visible {
    outline: 2px solid #3b82f6;
    outline-offset: 2px;
}

/* 動作軽減設定への対応 */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* スクリーンリーダー用非表示 */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* 高コントラスト対応 */
@media (prefers-contrast: high) {
    .btn {
        border: 2px solid;
    }
    
    .form-control {
        border-width: 2px;
    }
    
    .card {
        border: 1px solid #000;
    }
}