/* =====================================================
   Contact Page - お問い合わせページ用スタイル
   ===================================================== */

/* ----- Header Solid Background ----- */
.header--solid {
    background: rgba(5, 38, 82, 0.95);
    box-shadow: var(--shadow-md);
}

/* ----- Page Header ----- */
.page-header {
    background: var(--gradient-primary);
    padding: 130px 0 60px;
    text-align: center;
    color: var(--color-white);
}

.page-header__title {
    font-family: var(--font-serif-en);
    font-size: 2.5rem;
    font-weight: 400;
    letter-spacing: 0.2em;
    margin-bottom: 8px;
}

.page-header__subtitle {
    font-size: 1.125rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    margin-bottom: 15px;
}

.page-header__description {
    font-size: 0.9375rem;
    opacity: 0.8;
    max-width: 600px;
    margin: 0 auto;
}

/* ----- Contact Page Section ----- */
.contact-page {
    background: var(--color-bg);
    padding: 60px 0;
}

.contact-page__content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 60px;
    max-width: 1000px;
    margin: 0 auto;
}

/* ----- Form Wrapper ----- */
.contact-page__form-wrapper {
    background: var(--color-white);
    padding: 40px;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
}

.contact-page__form {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.contact-page__form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.contact-page__form-group label {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-text);
}

.contact-page__form-group input,
.contact-page__form-group textarea {
    padding: 15px;
    background: var(--color-bg);
    border: 2px solid transparent;
    border-radius: 8px;
    color: var(--color-text);
    font-family: var(--font-serif-jp);
    font-size: 1rem;
    transition: border-color var(--transition-fast), background var(--transition-fast);
}

.contact-page__form-group input:focus,
.contact-page__form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    background: var(--color-white);
}

.contact-page__form-group textarea {
    resize: vertical;
    min-height: 150px;
}

.contact-page__submit {
    align-self: flex-start;
    padding: 18px 40px;
    font-size: 1rem;
}

/* ----- Info Section ----- */
.contact-page__info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* ----- Phone Card ----- */
.contact-page__phone-card {
    display: flex;
    align-items: center;
    gap: 20px;
    background: var(--color-white);
    padding: 25px 30px;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
}

.contact-page__phone-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: 50%;
    color: var(--color-white);
    font-size: 1.25rem;
}

.contact-page__phone-detail h3 {
    font-family: var(--font-serif-en);
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    color: var(--color-accent);
    margin-bottom: 5px;
}

.contact-page__phone-detail .phone-display {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--color-text);
    letter-spacing: 0.05em;
}

.contact-page__social {
    background: var(--gradient-primary);
    padding: 35px;
    border-radius: 12px;
    color: var(--color-white);
}

.contact-page__social h3 {
    font-family: var(--font-serif-en);
    font-size: 1.25rem;
    letter-spacing: 0.15em;
    margin-bottom: 10px;
    color: var(--color-accent);
}

.contact-page__social-text {
    font-size: 0.875rem;
    opacity: 0.8;
    margin-bottom: 25px;
}

.contact-page__social-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.contact-page__social-link {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: var(--color-white);
    transition: background var(--transition-fast), transform var(--transition-fast);
}

.contact-page__social-link:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateX(5px);
}

.contact-page__social-link i {
    font-size: 1.25rem;
    width: 24px;
    text-align: center;
}

/* ----- Back to Home ----- */
.back-to-home {
    text-align: center;
    padding: 30px 0 60px;
    background: var(--color-bg);
}

/* =====================================================
   Responsive
   ===================================================== */

/* Tablet */
@media (max-width: 840px) {
    .page-header {
        padding: 110px 0 50px;
    }

    .page-header__title {
        font-size: 2rem;
    }

    .contact-page {
        padding: 40px 0;
    }

    .contact-page__content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .contact-page__form-wrapper {
        padding: 30px;
    }
}

/* Mobile */
@media (max-width: 540px) {
    .page-header {
        padding: 100px 0 40px;
    }

    .page-header__title {
        font-size: 1.75rem;
        letter-spacing: 0.1em;
    }

    .page-header__subtitle {
        font-size: 1rem;
    }

    .contact-page {
        padding: 30px 0;
    }

    .contact-page__form-wrapper {
        padding: 25px 20px;
    }

    .contact-page__form {
        gap: 20px;
    }

    .contact-page__form-group input,
    .contact-page__form-group textarea {
        padding: 12px;
    }

    .contact-page__submit {
        width: 100%;
        justify-content: center;
    }

    .contact-page__social {
        padding: 25px 20px;
    }

    .back-to-home {
        padding: 25px 0 50px;
    }
}