@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;700;900&display=swap');

@font-face {
    font-family: 'Chosunilbo_myungjo';
    src: url('fonts/Chosunilbo_myungjo.woff') format('woff');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

:root {
    --bg-color: rgba(255, 255, 255, 0.96);
    --text-color: #000000;
    --accent-color: #000000;
    --border-color: #000000;
    --max-width: 1100px;
    --spacing: 4rem;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.slideshow-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 2s ease-in-out;
    filter: grayscale(100%) brightness(0.7);
}

.slide.active {
    opacity: 1;
}

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-color);
    line-height: 1.8;
    padding: var(--spacing) 2rem;
    min-height: 100vh;
}

header,
main,
footer {
    max-width: var(--max-width);
    margin: 0 auto 4rem auto;
    background-color: var(--bg-color);
    padding: 4rem;
    border: 3px solid var(--border-color);
    box-shadow: 15px 15px 0px #000000;
}

/* Specific Font for Body Content */
p,
li,
.strategy-callout,
td {
    font-family: 'Chosunilbo_myungjo', serif;
    font-size: 1.35rem;
}

.intro {
    font-size: 1.5rem;
    font-family: 'Inter', sans-serif;
    /* Keep headers/intro in Inter */
    font-weight: 400;
    margin-bottom: 2rem;
    line-height: 1.6;
}

nav {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
    border-top: 3px solid #000;
    padding-top: 2rem;
}

nav a {
    font-family: 'Inter', sans-serif;
    text-decoration: none;
    color: #000;
    font-weight: 900;
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

h1 {
    font-family: 'Inter', sans-serif;
    font-size: 5rem;
    font-weight: 900;
    color: #000;
    line-height: 1;
    margin-bottom: 1.5rem;
    letter-spacing: -0.05em;
    text-transform: uppercase;
}

.date {
    font-family: 'Inter', sans-serif;
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 3rem;
    display: block;
    border-bottom: 3px solid #000;
    padding-bottom: 1rem;
}

h2 {
    font-family: 'Inter', sans-serif;
    font-size: 3rem;
    font-weight: 900;
    color: #fff;
    background-color: #000;
    margin: 5rem 0 2.5rem 0;
    padding: 0.7rem 1.5rem;
    display: inline-block;
    text-transform: uppercase;
}

h3 {
    font-family: 'Inter', sans-serif;
    font-size: 2.2rem;
    margin: 3rem 0 1.5rem 0;
    font-weight: 900;
    text-decoration: underline;
    text-underline-offset: 8px;
}

strong {
    font-weight: 900;
    background-color: #ffff0033;
    /* Very subtle highlight */
    padding: 0 4px;
}

/* Split Layout Utilities */
.split-content {
    display: flex;
    gap: 3rem;
    align-items: flex-start;
    margin-bottom: 3rem;
}

.split-content .text {
    flex: 2;
}

.split-content .diagram {
    flex: 1;
    border: 2px solid #000;
    padding: 2rem;
    background: #fff;
    box-shadow: 8px 8px 0px #000;
}

.mini-diagram-box {
    text-align: center;
    font-family: 'Inter', sans-serif;
}

.mini-diagram-box .box {
    border: 2px solid #000;
    padding: 0.5rem;
    margin: 0.5rem 0;
    font-weight: 700;
    font-size: 0.9rem;
}

/* Tables */
table {
    width: 100%;
    border: 4px solid #000;
    margin: 4rem 0;
}

th,
td {
    padding: 1.5rem;
    border: 1px solid #000;
}

th {
    font-family: 'Inter', sans-serif;
    background-color: #000;
    color: #fff;
    font-weight: 900;
    width: 250px;
    text-transform: uppercase;
}

.strategy-callout {
    background: #f8f8f8;
    border: 3px solid #000;
    padding: 3rem;
    font-style: italic;
    font-size: 1.6rem;
    margin: 4rem 0;
    position: relative;
}

.strategy-callout::before {
    content: '"';
    position: absolute;
    top: 0;
    left: 1rem;
    font-size: 4rem;
    font-family: 'Inter', sans-serif;
    font-weight: 900;
}

.card {
    background: #fff;
    padding: 3rem;
    border: 3px solid #000;
    box-shadow: 8px 8px 0px #000;
    height: 100%;
}

.step-container {
    gap: 2rem;
}

.step {
    background: #fff;
    padding: 2rem;
    border: 3px solid #000;
    font-size: 1.4rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.step span {
    font-family: 'Inter', sans-serif;
    font-size: 2.5rem;
    font-weight: 900;
}

@media (max-width: 900px) {
    .split-content {
        flex-direction: column;
    }

    header,
    main,
    footer {
        padding: 2rem;
    }

    h1 {
        font-size: 3rem;
    }
}