/* Design Direction 4c: Swiss International (스위스 타이포그래피) */

:root {
    --bg-white: #FFFFFF;
    --text-black: #000000;
    --text-muted: rgba(0, 0, 0, 0.6);
    --swiss-red: #E32B2B;
    --border-color: #000000;
    --border-light: rgba(0, 0, 0, 0.15);
    
    --font-heading: 'Space Grotesk', -apple-system, sans-serif;
    --font-sans: 'Space Grotesk', 'Noto Sans KR', sans-serif;
}

body {
    margin: 0;
    padding: 0;
    background-color: #F0F0F0;
    color: var(--text-black);
    font-family: var(--font-sans);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.swiss-container {
    width: 100%;
    max-width: 940px;
    margin: 40px 20px;
    background-color: var(--bg-white);
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.05);
    overflow: hidden;
    padding: 40px;
    box-sizing: border-box;
}

/* Header */
.swiss-header {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 16px;
    margin-bottom: 50px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.05em;
}

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

/* Title Section */
.swiss-title-section {
    margin-bottom: 60px;
}

.swiss-huge-title {
    margin: 0 0 20px;
    font-family: var(--font-heading);
    font-size: 96px;
    font-weight: 700;
    letter-spacing: -0.05em;
    line-height: 0.9;
    position: relative;
    display: inline-block;
}

.red-dot {
    color: var(--swiss-red);
}

.swiss-subtitle {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: 20px;
    max-width: 680px;
}

.sub-num {
    font-family: var(--font-heading);
    font-size: 32px;
    font-weight: 700;
    color: var(--swiss-red);
    line-height: 1;
}

.swiss-subtitle p {
    margin: 0;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-muted);
    font-weight: 500;
}

/* Grid Layout */
.swiss-grid {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 40px;
    margin-bottom: 60px;
}

/* Left Column */
.swiss-nav {
    display: flex;
    flex-direction: column;
    gap: 16px;
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
}

.nav-item {
    font-family: var(--font-heading);
    font-size: 13.5px;
    font-weight: 700;
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.2s ease, transform 0.2s ease;
}

.nav-item:hover, .nav-item.active {
    color: var(--text-black);
    transform: translateX(4px);
}

.nav-item.active::before {
    content: "■ ";
    color: var(--swiss-red);
}

/* Right Column */
.swiss-right-col {
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
}

.content-block {
    display: flex;
    flex-direction: column;
}

.block-num {
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 700;
    color: var(--swiss-red);
    margin-bottom: 12px;
}

.block-title {
    margin: 0 0 16px;
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.25;
}

.block-desc {
    margin: 0 0 30px;
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-muted);
}

.block-divider {
    height: 1px;
    background-color: var(--border-light);
}

/* Footer */
.swiss-footer {
    display: flex;
    justify-content: space-between;
    border-top: 2px solid var(--border-color);
    padding-top: 20px;
    font-size: 11px;
    font-weight: 700;
    color: var(--text-muted);
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .swiss-container {
        padding: 20px;
        margin: 10px;
    }
    
    .swiss-header {
        grid-template-columns: 1fr;
        gap: 8px;
        margin-bottom: 30px;
    }
    
    .text-right {
        text-align: left;
    }
    
    .swiss-huge-title {
        font-size: 56px;
    }
    
    .swiss-subtitle {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    .swiss-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .swiss-footer {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }
}