/* =========================
TOP
========================= */
.work-hero {
    position: relative;
    height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
}

.work-hero img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.85) contrast(1.05);
}

.work-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to bottom,
        rgba(0,0,0,0.1),
        rgba(11,13,16,0.5)
    );
}

.hero-content {
    position: relative;
    z-index: 2;
}

.work-title {
    font-size: 48px;
    letter-spacing: 3px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.8);
}

.work-sub {
    margin-top: 10px;
    color: #4cc9f0;
    text-shadow: 0 2px 10px rgba(0,0,0,0.7);
}

/* =========================
CONTAINER
========================= */
.work-container {
    max-width: 1000px;
    margin: 60px auto;
    padding: 0 20px;
}

/* =========================
CARD UI
========================= */
.work-card {
    background: linear-gradient(180deg, #141820, #10131a);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 30px;
    transition: 0.25s;
    position: relative;
    overflow: hidden;
}

.work-card::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, transparent, rgba(76,201,240,0.2), transparent);
    opacity: 0;
    transition: 0.3s;
}

.work-card:hover {
    transform: translateY(-6px) scale(1.01);
    box-shadow: 0 20px 50px rgba(0,0,0,0.6);
    border-color: rgba(76,201,240,0.5);
}

.work-card:hover::after {
    opacity: 1;
}

.work-card h3 {
    color: #4cc9f0;
    margin-bottom: 10px;
}

/* =========================
VIDEO
========================= */
.work-video video {
    width: 100%;
    border-radius: 10px;
    margin-top: 10px;
    transition: 0.3s;
}

.work-video:hover video {
    transform: scale(1.02);
}

/* =========================
BACK BUTTON
========================= */
.back-btn {
    position: fixed;
    top: 20px;
    left: 20px;

    padding: 10px 18px;
    border-radius: 30px;

    background: rgba(0,0,0,0.6);
    color: #4cc9f0;

    text-decoration: none;
    border: 1px solid rgba(76,201,240,0.3);

    transition: 0.3s;
    z-index: 1000;
}

.back-btn:hover {
    background: #4cc9f0;
    color: #000;
}

/* =========================
TAG
========================= */
.tag {
    display: inline-block;
    font-size: 12px;
    padding: 4px 10px;
    border-radius: 20px;
    background: rgba(76,201,240,0.1);
    border: 1px solid rgba(76,201,240,0.3);
    color: #4cc9f0;
    margin-bottom: 10px;
}



/* =========================
スマホ対応
========================= */
@media (max-width: 768px) {

    .work-hero {
        height: 50vh;
        padding: 0 16px;
    }

    .work-title {
        font-size: 26px;
    }

    .work-sub {
        font-size: 14px;
    }

    .work-container {
        margin: 40px auto;
        padding: 0 16px;
    }

    .work-card {
        padding: 16px;
    }

    .back-btn {
        top: 10px;
        left: 10px;
        font-size: 12px;
        padding: 6px 12px;
    }

    /* hover無効 */
    .work-card:hover {
        transform: none;
        box-shadow: none;
    }

    .work-video:hover video {
        transform: none;
    }
}