@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;700&family=Roboto+Mono:wght@400;600&display=swap');

:root {
    --mb-bg: #FFFFFF;
    --mb-ink: #111111;
    --mb-acid: #CCFF00; /* Acid Lime */
    --mb-gray: #F4F4F4;
    --mb-border: 1px solid #111111;
    --mb-font-main: 'Noto Sans JP', sans-serif;
    --mb-font-tech: 'Roboto Mono', monospace;
}

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

body {
    background-color: var(--mb-bg);
    color: var(--mb-ink);
    font-family: var(--mb-font-main);
    line-height: 1.8;
    font-size: 15px;
}

a { text-decoration: none; color: inherit; transition: 0.2s; }
ul { list-style: none; }

/* Grid Background */
.mb-lab-bg {
    background-image: linear-gradient(#E5E5E5 1px, transparent 1px),
    linear-gradient(90deg, #E5E5E5 1px, transparent 1px);
    background-size: 40px 40px;
    min-height: 100vh;
}

.mb-lab-wrap {
    max-width: 1200px;
    margin: 0 auto;
    background: #fff;
    border-left: var(--mb-border);
    border-right: var(--mb-border);
    min-height: 100vh;
}

/* Header (Global) */
.mb-lab-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 30px;
    border-bottom: var(--mb-border);
    background: #fff;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.mb-lab-logo {
    font-family: var(--mb-font-tech);
    font-weight: 700;
    font-size: 1.4rem;
    background: var(--mb-ink);
    color: var(--mb-acid);
    padding: 4px 12px;
    letter-spacing: -1px;
}

.mb-lab-menu { display: flex; gap: 30px; }
.mb-lab-lnk {
    font-family: var(--mb-font-tech);
    font-size: 0.9rem;
    text-transform: uppercase;
    font-weight: 600;
    position: relative;
}
.mb-lab-lnk:hover { color: #666; }
.mb-lab-lnk::after {
    content: ''; display: block; width: 0; height: 2px; 
    background: var(--mb-acid); transition: 0.3s;
}
.mb-lab-lnk:hover::after { width: 100%; }

/* Hero */
.mb-lab-hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    border-bottom: var(--mb-border);
}
.mb-lab-hero-content { padding: 80px 40px; }
.mb-lab-hero-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-left: var(--mb-border);
    filter: grayscale(100%);
    transition: 0.5s;
}
.mb-lab-hero:hover .mb-lab-hero-img { filter: grayscale(0%); }

.mb-lab-badge {
    font-family: var(--mb-font-tech);
    background: var(--mb-gray);
    border: var(--mb-border);
    padding: 4px 10px;
    font-size: 0.8rem;
    display: inline-block;
    margin-bottom: 20px;
}

.mb-lab-h1 {
    font-size: 3rem;
    line-height: 1.2;
    font-weight: 700;
    margin-bottom: 30px;
}

.mb-lab-btn {
    background: var(--mb-ink);
    color: var(--mb-acid);
    padding: 15px 40px;
    font-family: var(--mb-font-tech);
    font-weight: 700;
    border: none;
    cursor: pointer;
    display: inline-block;
}
.mb-lab-btn:hover {
    background: var(--mb-acid);
    color: var(--mb-ink);
}

/* Content Grid */
.mb-lab-sect { padding: 60px 40px; border-bottom: var(--mb-border); }
.mb-lab-sect-title {
    font-family: var(--mb-font-tech);
    font-size: 1.5rem;
    margin-bottom: 40px;
    border-left: 5px solid var(--mb-acid);
    padding-left: 15px;
}

.mb-lab-grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
}

.mb-lab-card {
    border: var(--mb-border);
    transition: 0.3s;
    background: #fff;
}
.mb-lab-card:hover {
    transform: translateY(-5px);
    box-shadow: 8px 8px 0px var(--mb-ink);
}

.mb-lab-card-img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    border-bottom: var(--mb-border);
    filter: grayscale(100%);
    transition: 0.3s;
}
.mb-lab-card:hover .mb-lab-card-img { filter: grayscale(0%); }

.mb-lab-card-body { padding: 25px; }
.mb-lab-date {
    font-family: var(--mb-font-tech);
    font-size: 0.8rem;
    color: #666;
    margin-bottom: 10px;
    display: block;
}
.mb-lab-h3 { font-size: 1.2rem; margin-bottom: 15px; font-weight: 700; line-height: 1.4; }
.mb-lab-p { font-size: 0.95rem; color: #444; margin-bottom: 15px; }
.mb-lab-read {
    font-family: var(--mb-font-tech);
    font-size: 0.85rem;
    text-decoration: underline;
    font-weight: 700;
}

/* Form */
.mb-lab-form {
    max-width: 700px;
    margin: 0 auto;
    border: var(--mb-border);
    padding: 40px;
    background: var(--mb-gray);
}
.mb-lab-inp {
    width: 100%;
    padding: 15px;
    border: var(--mb-border);
    background: #fff;
    margin-bottom: 15px;
    font-family: var(--mb-font-tech);
}

/* Footer */
.mb-lab-foot {
    background: var(--mb-ink);
    color: #fff;
    padding: 60px 40px;
}
.mb-lab-foot-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
}
.mb-lab-ft-lnk { display: block; color: #999; margin-bottom: 8px; font-family: var(--mb-font-tech); font-size: 0.9rem; }
.mb-lab-ft-lnk:hover { color: var(--mb-acid); }

@media (max-width: 768px) {
    .mb-lab-hero { grid-template-columns: 1fr; }
    .mb-lab-hero-img { border-left: none; border-top: var(--mb-border); height: 300px; }
    .mb-lab-nav { flex-direction: column; gap: 15px; padding: 20px; }
    .mb-lab-sect { padding: 40px 20px; }
}