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

body {
    background-color: #FFFFFF;
    color: #000000;
    font-family: 'MS PGothic', 'Impact', 'Courier New', monospace;
    line-height: 1.4;
    padding: 10px;
}

.red-text { color: #FF0000; font-size: 125%; }
.red-bg { background-color: #FF0000; }
.text-white { color: #FFFFFF; }
.yellow-bg { background-color: #FFFF00; }
.bold-cell { font-weight: bold; background-color: #FFFFCC; }

.wrapper {
    max-width: 900px;
    margin: 0 auto;
    border: 5px solid #000000;
    background-color: #FFFFFF;
    box-shadow: 10px 10px 0px #000000;
}

.thick-divider {
    border: none;
    border-top: 5px solid #000000;
    margin: 0;
}

.advert-header {
    background-color: #E6E6E6;
    padding: 0;
    border-bottom: 5px solid #000000;
}

.warning-stripe {
    background-color: #FFFF00;
    color: #000000;
    font-weight: bold;
    border-bottom: 3px solid #000000;
    padding: 5px;
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    overflow: hidden;
}

.hero-grid {
    display: flex;
    border-bottom: 3px solid #000000;
}

.title-block {
    flex: 2;
    padding: 20px;
    border-right: 3px solid #000000;
    background-color: #FFFFFF;
}

.japanese-text {
    font-size: 1.5rem;
    color: #FF0000;
    margin-bottom: 5px;
    letter-spacing: 2px;
}

.logo-text {
    font-size: 4.5rem;
    line-height: 1;
    font-family: 'Arial Black', Impact, sans-serif;
    letter-spacing: -2px;
}

.version-badge {
    display: inline-block;
    background-color: #000000;
    color: #FFFF00;
    padding: 5px 15px;
    font-weight: bold;
    font-size: 1.2rem;
    margin-top: 32px;
}

.mascot-block {
    flex: 1;
    display: flex;
    max-height:16rem;
    max-width:16rem;
    margin:-12px;
}


.mascot-placeholder {
    width: 100%;
    height: 100%;
    min-height: 150px;
    background-color: #FFFFFF;
    border: 3px dashed #000000;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    font-weight: bold;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
}

.hero-sub {
    padding: 15px;
    background-color: #000000;
    color: #FFFFFF;
    text-align: center;
    font-weight: bold;
    font-size: 1.2rem;
}

.action-box {
    padding: 20px;
    text-align: center;
    background-color: #FFFFFF;
}

.btn-download {
    display: block;
    background-color: #FF0000;
    color: #FFFFFF;
    text-decoration: none;
    font-size: 1.8rem;
    font-weight: bold;
    padding: 15px;
    border: 4px solid #000000;
    margin-bottom: 15px;
    box-shadow: 5px 5px 0px #000000;
}

.btn-download:active {
    box-shadow: 0px 0px 0px #000000;
    transform: translate(5px, 5px);
}

.btn-secondary {
    display: inline-block;
    color: #000000;
    text-decoration: none;
    font-weight: bold;
    font-family: 'Courier New', monospace;
    border-bottom: 2px solid #000000;
}

.ad-section {
    padding: 30px 20px;
    background-color: #FFFFFF;
}

.inverted-section {
    background-color: #000000;
    color: #FFFFFF;
}

.section-title {
    font-size: 2rem;
    margin-bottom: 20px;
    text-decoration: underline;
    text-decoration-thickness: 3px;
    text-underline-offset: 5px;
}

.inverted-section .section-title {
    color: #FFFF00;
}

.feature-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.feature-box {
    border: 3px solid #000000;
    padding: 15px;
    background-color: #F0F0F0;
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: 10px;
}

.feature-box h3 {
    background-color: #000000;
    color: #FFFFFF;
    padding: 5px;
    margin-bottom: 10px;
    display: inline-block;
}

/* --- OS Info --- */
.spec-container {
    border: 3px solid #FFFFFF;
    padding: 20px;
    position: relative;
    overflow: hidden;
}

.spec-intro {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: #CCCCCC;
}

.spec-list {
    list-style-type: square;
    padding-left: 20px;
    font-size: 1.1rem;
}

.spec-list li {
    margin-bottom: 10px;
}

.kanji-watermark {
    position: absolute;
    bottom: -20px;
    right: -20px;
    font-size: 8rem;
    color: #FF0000;
    opacity: 0.3;
    z-index: 0;
    user-select: none;
}

/* --- Comparison Table --- */
.comparison-sub {
    font-weight: bold;
    margin-bottom: 15px;
    color: #FF0000;
}

.tech-table {
    width: 100%;
    border-collapse: collapse;
    border: 4px solid #000000;
}

.tech-table th, .tech-table td {
    border: 2px solid #000000;
    padding: 12px;
    text-align: left;
    font-family: 'Courier New', monospace;
    font-weight: bold;
}

.tech-table th {
    background-color: #000000;
    color: #FFFFFF;
    font-family: 'MS PGothic', sans-serif;
    font-size: 1.1rem;
}

.step-container {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.step-box {
    display: flex;
    border: 3px solid #000000;
}

.step-num {
    background-color: #FF0000;
    color: #FFFFFF;
    font-weight: bold;
    font-size: 1.5rem;
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    writing-mode: vertical-rl;
    text-orientation: mixed;
    border-right: 3px solid #000000;
}

.step-text {
    padding: 15px;
    background-color: #FFFFE0;
    flex-grow: 1;
}

.step-text h3 {
    border-bottom: 2px solid #000000;
    padding-bottom: 5px;
    margin-bottom: 10px;
}

.advert-footer {
    background-color: #000000;
    color: #FFFFFF;
    padding: 20px;
}
.advert-footer a:visited {
    color: yellow;
}

.footer-grid {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-logo {
    font-size: 2rem;
    font-weight: bold;
    font-family: 'Arial Black', Impact, sans-serif;
}

.footer-text {
    font-family: 'Courier New', monospace;
    font-size: 0.8rem;
    text-align: right;
    color: #AAAAAA;
}

.code {
    display: inline-block;
    background-color: #dadada;
    color: darkslategray;
    padding-left: 0.25rem;
    padding-right: 0.25rem;
    padding-top: 0.1rem;
    padding-bottom: 0.1rem;
    border-radius: 6px !important;
}

#slogan {
    font-weight: 900;
    background: black;
    color: white;
    padding:0.5rem;
}

@media (max-width: 768px) {
    .hero-grid { flex-direction: column; }
    .title-block { border-right: none; border-bottom: 3px solid #000000; }
    .feature-grid { grid-template-columns: 1fr; }
    .footer-grid { flex-direction: column; text-align: center; gap: 15px; }
    .footer-text { text-align: center; }
    .step-box { flex-direction: column; }
    .step-num { writing-mode: horizontal-tb; border-right: none; border-bottom: 3px solid #000000; padding: 10px; }
    .logo-text { font-size: 3rem; }
}