/* 기본 리셋 및 타이포그래피 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
        'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
        sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    line-height: 1.6;
}

/* Prose 스타일 (마크다운 콘텐츠용) */
.prose {
    color: #374151;
    max-width: 65ch;
}

.prose h1 {
    font-size: 2.25em;
    margin-top: 0;
    margin-bottom: 0.8888889em;
    line-height: 1.1111111;
    font-weight: 800;
}

.prose h2 {
    font-size: 1.875em;
    margin-top: 2em;
    margin-bottom: 1em;
    line-height: 1.3333333;
    font-weight: 700;
}

.prose h3 {
    font-size: 1.5em;
    margin-top: 1.6em;
    margin-bottom: 0.6em;
    line-height: 1.6;
    font-weight: 600;
}

.prose p {
    margin-top: 1.25em;
    margin-bottom: 1.25em;
}

.prose img {
    margin-top: 2em;
    margin-bottom: 2em;
    border-radius: 0.5rem;
    max-width: 100%;
    height: auto;
}

.prose ul, .prose ol {
    margin-top: 1.25em;
    margin-bottom: 1.25em;
    padding-left: 1.625em;
}

.prose li {
    margin-top: 0.5em;
    margin-bottom: 0.5em;
}

.prose strong {
    color: #111827;
    font-weight: 600;
}

.prose a {
    color: #2563eb;
    text-decoration: underline;
    font-weight: 500;
}

.prose a:hover {
    color: #1d4ed8;
}

.prose blockquote {
    font-weight: 500;
    font-style: italic;
    color: #111827;
    border-left-width: 0.25rem;
    border-left-color: #e5e7eb;
    quotes: "\201C""\201D""\2018""\2019";
    margin-top: 1.6em;
    margin-bottom: 1.6em;
    padding-left: 1em;
}

.prose code {
    color: #111827;
    font-weight: 600;
    font-size: 0.875em;
    background-color: #f3f4f6;
    padding: 0.2em 0.4em;
    border-radius: 0.25rem;
}

.prose pre {
    color: #e5e7eb;
    background-color: #1f2937;
    overflow-x: auto;
    font-size: 0.875em;
    line-height: 1.7142857;
    margin-top: 1.7142857em;
    margin-bottom: 1.7142857em;
    border-radius: 0.375rem;
    padding: 1em;
}

/* Line clamp utility */
.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;
}

/* Utility classes */
.container {
    width: 100%;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1rem;
    padding-right: 1rem;
}

@media (min-width: 640px) {
    .container {
        max-width: 640px;
    }
}

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

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

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

/* 반응형 그리드 */
.grid {
    display: grid;
    gap: 1rem;
}

@media (min-width: 768px) {
    .md\:grid-cols-2 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .md\:grid-cols-3 {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .md\:flex {
        display: flex;
    }

    .md\:w-1\/3 {
        width: 33.333333%;
    }

    .md\:w-2\/3 {
        width: 66.666667%;
    }
}

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

.transition-shadow {
    transition-property: box-shadow;
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
    transition-duration: 300ms;
}

/* 색상 유틸리티 */
.bg-gray-50 { background-color: #f9fafb; }
.bg-gray-100 { background-color: #f3f4f6; }
.bg-gray-200 { background-color: #e5e7eb; }
.bg-gray-600 { background-color: #4b5563; }
.bg-gray-700 { background-color: #374151; }
.bg-gray-900 { background-color: #111827; }
.bg-white { background-color: #ffffff; }
.bg-blue-50 { background-color: #eff6ff; }
.bg-blue-100 { background-color: #dbeafe; }
.bg-blue-600 { background-color: #2563eb; }
.bg-blue-700 { background-color: #1d4ed8; }
.bg-sky-500 { background-color: #0ea5e9; }
.bg-sky-600 { background-color: #0284c7; }

.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-900 { color: #111827; }
.text-white { color: #ffffff; }
.text-blue-400 { color: #60a5fa; }
.text-blue-600 { color: #2563eb; }
.text-blue-800 { color: #1e40af; }

.hover\:bg-blue-100:hover { background-color: #dbeafe; }
.hover\:bg-blue-700:hover { background-color: #1d4ed8; }
.hover\:bg-gray-700:hover { background-color: #374151; }
.hover\:bg-sky-600:hover { background-color: #0284c7; }
.hover\:text-blue-300:hover { color: #93c5fd; }
.hover\:text-blue-600:hover { color: #2563eb; }
.hover\:text-blue-800:hover { color: #1e40af; }
.hover\:text-white:hover { color: #ffffff; }
.hover\:text-orange-600:hover { color: #ea580c; }

.border-gray-200 { border-color: #e5e7eb; }
.border-gray-800 { border-color: #1f2937; }
.border-blue-500 { border-color: #3b82f6; }

/* 간격 유틸리티 */
.space-y-2 > * + * { margin-top: 0.5rem; }
.space-y-8 > * + * { margin-top: 2rem; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }
.gap-8 { gap: 2rem; }

.p-4 { padding: 1rem; }
.p-6 { padding: 1.5rem; }
.p-8 { padding: 2rem; }
.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; }
.py-1 { padding-top: 0.25rem; padding-bottom: 0.25rem; }
.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-4 { padding-top: 1rem; padding-bottom: 1rem; }
.py-8 { padding-top: 2rem; padding-bottom: 2rem; }
.pl-4 { padding-left: 1rem; }
.pt-6 { padding-top: 1.5rem; }

.m-0 { margin: 0; }
.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; }
.mt-6 { margin-top: 1.5rem; }
.mt-8 { margin-top: 2rem; }
.mt-12 { margin-top: 3rem; }
.mt-16 { margin-top: 4rem; }
.mx-auto { margin-left: auto; margin-right: auto; }
.-mx-8 { margin-left: -2rem; margin-right: -2rem; }
.-mt-8 { margin-top: -2rem; }

/* 텍스트 유틸리티 */
.text-xs { font-size: 0.75rem; line-height: 1rem; }
.text-sm { font-size: 0.875rem; line-height: 1.25rem; }
.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; }
.text-5xl { font-size: 3rem; line-height: 1; }

.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

.text-center { text-align: center; }
.leading-tight { line-height: 1.25; }
.leading-relaxed { line-height: 1.625; }

/* 레이아웃 */
.block { display: block; }
.inline-flex { display: inline-flex; }
.flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-center: center; }

.w-full { width: 100%; }
.h-full { height: 100%; }
.h-auto { height: auto; }
.h-32 { height: 8rem; }
.max-h-96 { max-height: 24rem; }
.max-w-none { max-width: none; }
.max-w-5xl { max-width: 64rem; }

.overflow-hidden { overflow: hidden; }
.overflow-x-auto { overflow-x: auto; }

.rounded { border-radius: 0.25rem; }
.rounded-lg { border-radius: 0.5rem; }
.rounded-full { border-radius: 9999px; }

.shadow { box-shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1); }
.shadow-md { box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1); }
.shadow-lg { box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1); }
.shadow-xl { box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.1); }
.hover\:shadow-md:hover { box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1); }
.hover\:shadow-xl:hover { box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.1); }

.border { border-width: 1px; }
.border-b { border-bottom-width: 1px; }
.border-t { border-top-width: 1px; }
.border-l-4 { border-left-width: 4px; }

.sticky { position: sticky; }
.top-0 { top: 0; }
.z-50 { z-index: 50; }

.object-cover { object-fit: cover; }