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

body {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
    background-color: #111111;
    color: #ffffff;
    line-height: 1.5;
    overflow-x: clip;
    letter-spacing: -0.02em;
}

/* Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    padding: 16px 24px;
    background-color: rgba(17, 17, 17, 0.6);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    z-index: 1000;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: backdrop-filter 0.3s ease, background-color 0.3s ease;
}

.header-content {
    max-width: 1920px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.back-button {
    color: #888888;
    text-decoration: none;
    font-size: 1.04rem;
    font-weight: 500;
    letter-spacing: normal;
    transition: color 0.3s ease;
}

.back-button:hover {
    color: #ffffff;
}

.contact-info a {
    color: #888888;
    text-decoration: none;
    font-size: 1.04rem;
    font-weight: 500;
    letter-spacing: normal;
    transition: color 0.3s ease;
}

.contact-info a:hover {
    color: #ffffff;
}

/* Cover */
.cover-wrap {
    padding-top: 56px;
}

/* Project Info */
.project-info {
    display: flex;
    gap: 0;
    padding: 56px 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.info-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding: 0 32px;
    border-left: 1px solid rgba(255, 255, 255, 0.1);
}

.info-item:first-child {
    flex: 1.6;
    padding-left: 0;
    border-left: none;
}

.info-label {
    font-size: 0.68rem;
    font-weight: 600;
    color: #666666;
    text-transform: uppercase;
    letter-spacing: 0.12em;
}

.info-value {
    font-size: 1rem;
    font-weight: 500;
    color: #ffffff;
    line-height: 1.6;
}

/* Content Sections */
.content-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 0 80px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.section-label-row {
    display: flex;
    align-items: baseline;
    gap: 12px;
    padding: 0 0 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    margin-bottom: 4px;
}

.section-num {
    font-size: 0.68rem;
    font-weight: 600;
    color: #444444;
    letter-spacing: 0.12em;
}

.section-name {
    font-size: 0.68rem;
    font-weight: 600;
    color: #666666;
    text-transform: uppercase;
    letter-spacing: 0.12em;
}

/* Image Placeholders */
.img-placeholder {
    background-color: #1e1e1e;
    border-radius: 4px;
    width: 100%;
}

.img-placeholder--cover {
    aspect-ratio: 16 / 9;
    border-radius: 0;
    background-color: #1c1c1c;
}

.img-placeholder--full {
    aspect-ratio: 16 / 7;
}

.img-placeholder--half {
    aspect-ratio: 4 / 3;
    width: 100%;
}

.img-placeholder--third {
    aspect-ratio: 3 / 4;
    width: 100%;
}

/* Grid layouts */
.two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.three-col {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 12px;
}

/* Footer */
footer {
    padding: 60px 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    max-width: 1200px;
    margin: 0 auto;
}

.footer-back {
    color: #888888;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s ease;
}

.footer-back:hover {
    color: #ffffff;
}

/* Scroll animation */
.animate-target {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.65s ease, transform 0.65s ease;
}

.animate-target.animate-in {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 768px) {
    header {
        padding: 12px 16px;
    }

    .header-content {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .contact-info {
        display: none;
    }

    .project-info {
        flex-direction: column;
        padding: 40px 24px;
        gap: 32px;
    }

    .info-item,
    .info-item:first-child {
        padding: 0;
        border-left: none;
        border-top: 1px solid rgba(255, 255, 255, 0.08);
        padding-top: 24px;
    }

    .info-item:first-child {
        border-top: none;
        padding-top: 0;
    }

    .content-section {
        padding: 0 16px 60px;
    }

    .two-col,
    .three-col {
        grid-template-columns: 1fr;
    }

    footer {
        padding: 40px 20px;
    }
}