/**
 * フッター
 */

/* ============================================================
   フッター
   ============================================================ */
.l-footer {
    background: linear-gradient(135deg, var(--color-bg-dark) 0%, #162a3e 100%);
    background-image:
        linear-gradient(135deg, var(--color-bg-dark) 0%, #162a3e 100%),
        radial-gradient(circle, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 100% 100%, 24px 24px;
    color: var(--color-text-white);
    position: relative;
    overflow: hidden;
}

.l-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent), var(--color-accent-green), var(--color-accent-yellow), var(--color-primary));
    background-size: 300% 100%;
    animation: gradient-shift 6s ease infinite;
}

.l-footer::after {
    content: '';
    position: absolute;
    top: 40px;
    right: -60px;
    width: 200px;
    height: 200px;
    border: 2px solid rgba(255, 255, 255, 0.04);
    border-radius: 50%;
    pointer-events: none;
    animation: float 8s ease-in-out infinite;
}

.l-footer__inner {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-sm) var(--spacing-lg);
}

/* 会社情報カラム */
.l-footer__company .l-footer__logo {
    display: inline-block;
    margin-bottom: var(--spacing-sm);
    padding: 8px 16px;
    background-color: #fff;
    border-radius: 4px;
}

.l-footer__company .l-footer__logo img {
    display: block;
    max-height: 36px;
    max-width: 280px;
    width: auto;
    height: auto;
    object-fit: contain;
}

.l-footer__company-name {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--color-text-white);
}

.l-footer__company-info {
    font-size: 0.8125rem;
    line-height: 1.8;
    opacity: 0.8;
}

.l-footer__company-info a {
    color: var(--color-text-white);
    opacity: 0.8;
}

.l-footer__company-info a:hover {
    opacity: 1;
}

/* サイトマップカラム */
.l-footer__sitemap-title {
    font-size: 0.9375rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--color-text-white);
}

.l-footer__sitemap-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
}

.l-footer__sitemap-link {
    font-size: 0.8125rem;
    color: var(--color-text-white);
    opacity: 0.8;
    transition: opacity var(--transition-base);
}

.l-footer__sitemap-link:hover {
    opacity: 1;
    color: var(--color-text-white);
}

/* SNS・お問い合わせカラム */
.l-footer__contact-title {
    font-size: 0.9375rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--color-text-white);
}

.l-footer__sns {
    display: flex;
    gap: 0.75rem;
    margin-bottom: var(--spacing-sm);
}

.l-footer__sns-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    color: var(--color-text-white);
    font-size: 1rem;
    transition: all var(--transition-base);
}

.l-footer__sns-link:hover {
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-yellow));
    border-color: var(--color-accent);
    color: var(--color-text-white);
    transform: translateY(-3px);
}

/* コピーライト */
.l-footer__bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-sm);
}

.l-footer__bottom-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
}

.l-footer__bottom-links {
    display: flex;
    gap: 1.5rem;
}

.l-footer__bottom-link {
    font-size: 0.75rem;
    color: var(--color-text-white);
    opacity: 0.7;
}

.l-footer__bottom-link:hover {
    opacity: 1;
    color: var(--color-text-white);
}

.l-footer__copyright {
    font-size: 0.75rem;
    font-family: var(--font-family-en);
    opacity: 0.6;
}

/* ページトップボタン */
.c-page-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 48px;
    height: 48px;
    background-color: var(--color-primary);
    color: var(--color-text-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    z-index: 900;
    box-shadow: var(--shadow-md);
}

.c-page-top.is-visible {
    opacity: 1;
    visibility: visible;
}

.c-page-top:hover {
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-yellow));
    transform: translateY(-6px) rotate(360deg);
    color: var(--color-text-white);
    box-shadow: var(--shadow-pop);
}