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

:root {
    --noir: #0F0F0F;
    --pearl: #F9F9F7;
    --ash: #8C8C88;
    --smoke: #E2E2DF;
    --accent: #8A9A5B; /* 弓道の静寂をイメージした落ち着いた緑（苔色） */
}

body {
    font-family: 'DM Sans', 'Noto Serif JP', serif;
    background-color: var(--pearl);
    color: var(--noir);
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
}

.serif {
    font-family: 'Cormorant Garamond', 'Noto Serif JP', serif;
    font-weight: 300;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 2rem 5vw;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(249, 249, 247, 0.8);
    backdrop-filter: blur(10px);
}

.logo {
    font-size: 1rem;
    letter-spacing: 0.2em;
    font-weight: 400;
    text-transform: uppercase;
}

.nav-links {
    display: flex;
    gap: 3rem;
    list-style: none;
}

.nav-links a {
    color: var(--noir);
    text-decoration: none;
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--accent);
}

/* Hero */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    padding: 0 10vw;
}

.hero-content {
    max-width: 800px;
}

.hero-pretitle {
    font-size: 0.75rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--ash);
    margin-bottom: 2rem;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 5rem);
    line-height: 1.2;
    margin-bottom: 2.5rem;
}

.hero-subtitle {
    color: var(--ash);
}

/* Work Section */
.work {
    padding: 10rem 0 10rem 10vw;
    background: #fff;
    overflow: hidden;
}

.section-label {
    font-size: 0.75rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--ash);
    margin-bottom: 5rem;
}

.work .section-label {
    padding-right: 10vw;
}

.work-slider {
    display: flex;
    gap: 4rem;
    overflow-x: auto;
    overflow-y: hidden;
    scroll-snap-type: x mandatory;
    padding-right: 10vw;
    -ms-overflow-style: none;
    scrollbar-width: none;
}

.work-slider::-webkit-scrollbar {
    display: none;
}

.work-card {
    flex: 0 0 450px;
    scroll-snap-align: start;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.app-visual {
    background: var(--smoke);
    width: 100%;
    aspect-ratio: 16/10;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    border-radius: 4px;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.work-card:hover .app-visual {
    transform: translateY(-4px);
}

.app-visual::after {
    content: var(--app-name, "qdBase");
    font-family: 'Cormorant Garamond', serif;
    font-size: 4rem;
    color: rgba(0, 0, 0, 0.04);
    letter-spacing: 0.05em;
}

.app-visual--has-icon::after {
    display: none;
}

.app-visual__icon {
    width: auto;
    height: min(80%, 14rem);
    max-width: 80%;
    object-fit: contain;
    display: block;
}

.app-info-mini h3 {
    font-size: 1.75rem;
    margin-bottom: 0.25rem;
    font-weight: 300;
}

.app-tag {
    font-size: 0.75rem;
    color: var(--accent);
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
}

.app-description-mini {
    color: var(--ash);
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 1.5rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Philosophy */
.philosophy {
    padding: 10rem 10vw;
    text-align: center;
}

.philosophy .section-label {
    text-align: center;
}

.philosophy-text {
    font-size: 1.5rem;
    max-width: 800px;
    margin: 0 auto;
    line-height: 2;
    font-weight: 200;
}

/* Footer */
footer {
    padding: 5rem 10vw;
    border-top: 1px solid var(--smoke);
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

.footer-left h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.contact-link {
    color: var(--noir);
    text-decoration: none;
    border-bottom: 1px solid var(--noir);
    padding-bottom: 2px;
    font-size: 0.875rem;
}

.copyright {
    font-size: 0.75rem;
    color: var(--ash);
}

@media (max-width: 768px) {
    .work {
        padding: 6rem 0 6rem 6vw;
    }

    .work .section-label {
        padding-right: 6vw;
    }

    .work-slider {
        gap: 2rem;
        padding-right: 6vw;
    }

    .work-card {
        flex: 0 0 80vw;
    }

    .app-info-mini h3 {
        font-size: 1.5rem;
    }

    .nav-links {
        display: none;
    }

    footer {
        flex-direction: column;
        align-items: flex-start;
        gap: 3rem;
    }
}