/* リセット */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --orange: #FF3A00;
    --black: #0F0F0F;
    --white: #F2F2EE;
    --border: 2px solid #0F0F0F;
}

body {
    font-family: 'IBM Plex Sans', Arial, sans-serif;
    background-color: var(--white);
    color: var(--black);
    line-height: 1.6;
    overflow-x: hidden;
    padding-top: 0;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s ease;
}

/* ===== HEADER ===== */
.site-header {
    background-color: var(--black);
    padding: 0;
    margin-bottom: 0;
    border-bottom: 4px solid var(--orange);
    position: static;
    top: auto;
    z-index: auto;
    width: 100%;
}

.header-content {
    max-width: 100%;
    margin: 0;
    display: flex;
    justify-content: space-between;
    align-items: stretch;
    padding: 0 48px;
    flex-wrap: wrap;
    padding-bottom: 0;
    border-bottom: none;
}

.profile-info {
    flex: 1;
    min-width: 280px;
    padding: 40px 48px 40px 0;
    border-right: 1px solid rgba(255, 255, 255, 0.08);
}

.name {
    font-size: 4rem;
    font-weight: 700;
    color: var(--white);
    letter-spacing: -0.04em;
    line-height: 1;
    margin-bottom: 14px;
    text-transform: uppercase;
}

.profile-info p {
    font-size: 0.8rem;
    line-height: 1.5;
    margin-bottom: 5px;
    color: rgba(255, 255, 255, 0.35);
    letter-spacing: 0.04em;
}

.contact-email {
    margin-top: 8px;
    font-weight: 400;
}

.main-nav {
    flex-basis: auto;
    display: flex;
    align-items: flex-end;
    padding: 40px 0 40px 48px;
}

.main-nav ul {
    list-style: none;
    display: flex;
    gap: 40px;
    flex-direction: row;
}

.main-nav li {
    margin-left: 0;
}

.nav-link {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    color: rgba(255, 255, 255, 0.55);
    padding-bottom: 0;
    position: relative;
    text-transform: uppercase;
    transition: color 0.2s;
}

.nav-link::after {
    display: none;
}

.nav-link:hover {
    color: var(--orange);
}

/* ===== SECTION BAR ===== */
.section-bar {
    display: flex;
    align-items: center;
    padding: 14px 48px;
    border-bottom: var(--border);
    gap: 16px;
}

.section-bar-label {
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--black);
}

.section-bar-line {
    flex: 1;
    height: 1px;
    background-color: rgba(0, 0, 0, 0.15);
}

.section-bar-count {
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: rgba(0, 0, 0, 0.3);
}

/* ===== MAIN CONTAINER ===== */
.main-container {
    max-width: 100%;
    margin: 0;
    padding: 0 0 0;
}

/* ===== WORK GRID ===== */
.work-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 0;
    border-left: var(--border);
    border-top: var(--border);
}

.work-item {
    display: flex;
    flex-direction: column;
    margin: 0;
    padding: 0;
    border-right: var(--border);
    border-bottom: var(--border);
}

.work-link {
    display: block;
}

.work-image-wrapper {
    width: 100%;
    padding-bottom: 56.25%;
    position: relative;
    overflow: hidden;
    background-color: var(--black);
    margin-bottom: 0;
}

.work-image-wrapper img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.work-link:hover .work-image-wrapper img {
    transform: scale(1.04);
}

/* 画像なしプレースホルダー */
.work-image-wrapper.no-image {
    background-color: var(--black);
    display: flex;
    align-items: center;
    justify-content: center;
}

.no-image-text {
    color: rgba(255, 255, 255, 0.15);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.3em;
    text-transform: uppercase;
}

/* 作品番号ラベル */
.work-number {
    position: absolute;
    top: 14px;
    left: 14px;
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: rgba(255, 255, 255, 0.5);
    z-index: 2;
    font-variant-numeric: tabular-nums;
    line-height: 1;
}

/* ===== ホバーオーバーレイ ===== */
.hover-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--orange);
    color: var(--black);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 24px;
    opacity: 0;
    transition: opacity 0.22s ease;
}

.work-link:hover .hover-overlay {
    opacity: 1;
}

.overlay-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 6px;
    letter-spacing: -0.02em;
    color: var(--black);
    line-height: 1.2;
}

.overlay-date {
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    color: rgba(0, 0, 0, 0.5);
    text-transform: uppercase;
}

/* ===== FOOTER ===== */
.site-footer {
    border-top: 4px solid var(--black);
    background-color: var(--black);
    padding: 28px 48px;
    margin-top: 0;
    text-align: left;
}

.footer-text {
    font-size: 0.72rem;
    color: rgba(255, 255, 255, 0.25);
    letter-spacing: 0.1em;
}

/* ===== PAGE CONTENT (ABOUT / CONTACT) ===== */
.page-content {
    padding: 80px 48px;
    max-width: 800px;
}

.page-content h2 {
    font-size: 3rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 28px;
    text-transform: uppercase;
    line-height: 1;
}

.page-content p {
    font-size: 1rem;
    color: #555;
    margin-bottom: 14px;
    max-width: 60ch;
    line-height: 1.7;
}

.contact-email-large {
    font-size: 1.4rem !important;
    font-weight: 700 !important;
    color: var(--black) !important;
    margin-top: 24px !important;
    letter-spacing: -0.01em;
}

/* ===== レスポンシブ ===== */
@media (max-width: 900px) {
    body {
        padding-top: 0;
    }

    .header-content {
        padding: 0 20px;
        flex-direction: column;
        align-items: flex-start;
    }

    .profile-info {
        padding: 24px 0 16px;
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        width: 100%;
        min-width: 0;
    }

    .name {
        font-size: 2.5rem;
    }

    .main-nav {
        padding: 16px 0 24px;
    }

    .main-nav ul {
        gap: 24px;
        flex-direction: row;
    }

    .main-nav li {
        margin-left: 0;
        margin-bottom: 0;
    }

    .section-bar {
        padding: 12px 20px;
    }

    .main-container {
        padding: 0;
    }

    .work-grid {
        grid-template-columns: 1fr;
        border-left: none;
        border-top: var(--border);
    }

    .work-item {
        border-left: none;
        border-right: none;
    }

    .overlay-title {
        font-size: 1.1rem;
    }

    .page-content {
        padding: 40px 20px;
    }

    .page-content h2 {
        font-size: 2rem;
    }

    .site-footer {
        padding: 24px 20px;
    }
}