@charset "utf-8";

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

html {
    margin: 0;
    padding: 0;
}

body {
    margin: 0;
    padding: 0;
    background-color: #F8FAFC;
    font-family: 'Noto Sans JP', sans-serif;
}

/* ヒーロー */
.portfolio-hero {
    background-color: #F8FAFC;
    padding: 80px 1.5rem 60px;
    text-align: center;
}

.portfolio-hero .hero-inner {
    max-width: 1200px;
    margin: 0 auto;
    text-align: left;
}

.portfolio-hero .hero-title {
    font-family: 'Poppins', sans-serif;
    font-size: 4rem;
    font-weight: 700;
    color: #000;
}

.portfolio-hero .hero-subtitle {
    font-family: 'Noto Sans JP', sans-serif;
    font-size: 2rem;
    color: #333;
}

/* ポートフォリオ例 */
.portfolio-section {
    padding: 2rem 1.5rem;
    text-align: center;
}

.section-title {
    font-size: 1.5rem;
    font-family: 'Poppins', sans-serif;
    margin-bottom: 1rem;
    text-align: left;
    max-width: 1100px;
    margin-left: auto;
    margin-right: auto;
}

.section-title span {
    font-size: 1rem;
    color: #555;
    display: block;
}

.portfolio-intro {
    max-width: 1100px;
    margin: 0 auto 2rem;
    font-size: 0.95rem;
    color: #333;
    text-align: left;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    max-width: 1100px;
    margin: 0 auto;
}

.portfolio-item {
    background-color: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease;
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.portfolio-item.show {
    opacity: 1;
    transform: translateY(0);
}

.portfolio-item:hover {
    transform: translateY(-4px);
}

.portfolio-item img {
    width: 100%;
    height: auto;
    display: block;
}

.portfolio-text {
    padding: 1rem;
    text-align: left;
    font-size: 0.9rem;
    line-height: 1.6;
    color: #333;
}

.portfolio-text .point {
    margin-bottom: 8px;
}

.portfolio-text h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.portfolio-btn-wrap {
    margin-top: 2.5rem;
    text-align: center;
}

.btn {
    display: inline-block;
    width: 80%;
    padding: 0.75rem 1.5rem;
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    color: #3B82F6;
    border: 2px solid #3B82F6;
    text-decoration: none;
    position: relative;
    overflow: hidden;
    transition: color 0.3s ease;
    position: relative;
    z-index: 1;
    max-width: 680px;
}

.btn span {
    margin-left: 10%;
    position: relative;
    z-index: 1;
}

/* ホバーアニメーション（左→右） */
.btn::before {
    content: "";
    position: absolute;
    background-color: #3B82F6;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    transition: left 0.4s ease;
    z-index: -1;
}

.btn:hover::before {
    left: 0;
}

.btn:hover {
    color: #fff;
}


/* フェードアップ共通 */
.fade-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-up.show {
    opacity: 1;
    transform: translateY(0);
}


/* 1280pxpx */
@media (max-width: 1280px) {}

/* 768px */
@media (max-width: 768px) {

    /* ポートフォリオ例 */
    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .portfolio-text {
        font-size: 0.85rem;
    }

    .portfolio-text h3 {
        font-size: 1rem;
    }

    .btn{
        width: 100%;
        padding: .75rem;
    }
}

/* 480px */
@media (max-width: 480px) {

    /* ヒーロー */
    .portfolio-hero {
        padding: 80px 1.5rem 40px;
    }

    .portfolio-hero .hero-title {
        font-size: 2.8rem;
    }

    .portfolio-hero .hero-subtitle {
        font-size: 1.5rem;
    }

    /* ポートフォリオ例 */
    .portfolio-intro {
        font-size: .85rem;
    }

    .portfolio-text h3 {
        font-size: .85rem;
    }

    .portfolio-text p {
        font-size: .75rem;
    }

    .btn {
        width: 100%;
        padding: 0.75rem .5rem;
        margin-left: 0;
        font-size: .8rem;
    }

    .btn span {
        margin-left: 10%;
    }

    .btn:hover::before {
        left: -100%;
    }

    .btn:hover {
        color: #3B82F6;
    }

}