/* Main Content */
.main-content {
    padding-top: 120px;
    min-height: 100vh;
}

.contact-section {
    padding: 80px 0 120px;
}

.page-title {
    font-size: 32px;
    font-weight: 500;
    letter-spacing: 16px;
    color: #333333;
    text-align: center;
    margin-bottom: 60px;
}

.page-description {
    font-size: 14px;
    letter-spacing: 2.8px;
    color: #535b5f;
    text-align: center;
    max-width: 720px;
    margin: 0 auto 80px;
    line-height: 1.6;
}

/* Contact Form */
.contact-form {
    max-width: 720px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 40px;
}

.form-label {
    display: block;
    font-size: 14px;
    letter-spacing: 2.8px;
    color: #535b5f;
    margin-bottom: 12px;
    font-weight: 400;
}

.required {
    color: #b94949;
    margin-left: 4px;
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 16px;
    font-size: 14px;
    letter-spacing: 2.8px;
    color: #333333;
    background-color: #f5f5f5;
    border: none;
    border-radius: 0;
    font-family: 'Roboto', sans-serif;
    transition: all 0.3s ease;
}

.form-input {
    height: 50px;
}

.form-textarea {
    height: 200px;
    resize: vertical;
    min-height: 200px;
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    background-color: #eeeeee;
    box-shadow: 0 0 0 2px rgba(51, 51, 51, 0.1);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: #bfbfbf;
    font-size: 14px;
    letter-spacing: 2.8px;
}

/* Form Row Layout for Furigana */
.form-row {
    display: flex;
    align-items: center;
    gap: 0;
}

.form-col {
    flex: 1;
}

.form-divider {
    width: 1px;
    height: 30px;
    background-color: #bfbfbf;
    margin: 0 20px;
    transform: rotate(90deg);
}

/* Character Count */
.character-count {
    text-align: right;
    margin-top: 8px;
    font-size: 12px;
    letter-spacing: 1.5px;
    color: #999999;
}

.character-count.warning {
    color: #b94949;
}

/* Submit Button */
.form-submit {
    text-align: center;
    margin-top: 60px;
}

.submit-btn {
    background-color: #333333;
    color: #ffffff;
    border: none;
    padding: 24px 48px;
    font-size: 14px;
    letter-spacing: 2.8px;
    font-family: 'Roboto', sans-serif;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 16px;
    transition: all 0.3s ease;
    border-radius: 0;
}

.submit-btn:hover {
    background-color: #222222;
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.submit-btn:active {
    transform: translateY(0);
}

.submit-btn img {
    width: 16px;
    height: 16px;
}

.submit-btn:disabled {
    background-color: #cccccc;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Form Validation */
.form-input.error,
.form-textarea.error {
    background-color: #ffeaea;
    box-shadow: 0 0 0 2px #b94949;
}

.error-message {
    color: #b94949;
    font-size: 12px;
    letter-spacing: 1.5px;
    margin-top: 8px;
    display: none;
}

.error-message.show {
    display: block;
}


/* Loading State */
.loading {
    position: relative;
    overflow: hidden;
}

.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg,
            transparent,
            rgba(255, 255, 255, 0.6),
            transparent);
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% {
        left: -100%;
    }

    100% {
        left: 100%;
    }
}

/* Success Message */
.success-message {
    background-color: #e8f5e8;
    color: #2d5a2d;
    padding: 20px;
    margin-bottom: 40px;
    text-align: center;
    font-size: 14px;
    letter-spacing: 2.8px;
    display: none;
}

.success-message.show {
    display: block;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .container {
        max-width: 960px;
    }

    .contact-form {
        max-width: 600px;
    }
}

@media (max-width: 768px) {
    .main-content {
        padding-top: 100px;
    }

    .contact-section {
        padding: 60px 0 80px;
    }

    .page-title {
        font-size: 24px;
        letter-spacing: 8px;
        margin-bottom: 40px;
    }

    .page-description {
        font-size: 12px;
        letter-spacing: 1.5px;
        margin-bottom: 60px;
    }

    .contact-form {
        max-width: 100%;
    }

    .form-group {
        margin-bottom: 30px;
    }

    .form-label {
        font-size: 12px;
        letter-spacing: 1.5px;
    }

    .form-input,
    .form-textarea {
        font-size: 12px;
        letter-spacing: 1.5px;
        padding: 14px;
    }

    .form-input::placeholder,
    .form-textarea::placeholder {
        font-size: 12px;
        letter-spacing: 1.5px;
    }

    .submit-btn {
        padding: 20px 36px;
        font-size: 12px;
        letter-spacing: 1.5px;
    }

    .form-row {
        flex-direction: column;
        gap: 16px;
    }
}

@media (max-width: 480px) {

    .contact-section {
        padding: 0 0 60px;
    }

    .page-title {
        font-size: 20px;
        letter-spacing: 4px;
        margin-bottom: 30px;
    }

    .page-description {
        margin-bottom: 40px;
    }

    .form-group {
        margin-bottom: 25px;
    }

    .form-submit {
        margin-top: 40px;
    }

    .submit-btn {
        width: 100%;
        justify-content: center;
        padding: 18px 24px;
    }
}

/* Print Styles */
@media print {
    .submit-btn {
        display: none;
    }

    .main-content {
        padding-top: 0;
    }

    .contact-form {
        max-width: none;
    }

    .form-input,
    .form-textarea {
        border: 1px solid #000;
        background-color: transparent;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {

    .form-input,
    .form-textarea {
        border: 2px solid #333333;
    }

    .submit-btn {
        border: 2px solid #333333;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus Styles for Accessibility */
.form-input:focus,
.form-textarea:focus,
.submit-btn:focus {
    outline: 2px solid #333333;
    outline-offset: 2px;
}

/* Skip Link for Accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: #333333;
    color: #ffffff;
    padding: 8px;
    text-decoration: none;
    z-index: 9999;
}

.skip-link:focus {
    top: 6px;
}

/* Form Help Text */
.form-help {
    font-size: 0.875rem;
    color: #666;
    margin-top: 4px;
    display: block;
}

/* Fieldset and Legend styling */
fieldset {
    border: none;
    padding: 0;
    margin: 0;
}

legend {
    padding: 0;
    margin: 0;
}

/* 確認画面のスタイル */
.confirm-section {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 20px;
}

.confirm-title {
    font-size: 2rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 20px;
    color: #333;
}

.confirm-description {
    font-size: 14px;
    text-align: center;
    margin-bottom: 40px;
    color: #666;
    line-height: 1.6;
}

.confirm-content {
    font-size: 14px;
    background: #f9f9f9;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    padding: 30px;
    margin-bottom: 40px;
}

.confirm-item {
    display: flex;
    flex-direction: column;
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid #e0e0e0;
}

.confirm-item:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.confirm-label {
    font-weight: 600;
    color: #333;
    margin-bottom: 8px;
}

.confirm-value {
    color: #555;
    line-height: 1.6;
    word-wrap: break-word;
}

.confirm-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.back-btn {
    background-color: #f5f5f5;
    color: #333333;
    border: 2px solid #ddd;
    padding: 22px 48px;
    font-size: 14px;
    letter-spacing: 2.8px;
    font-family: 'Roboto', sans-serif;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 16px;
    transition: all 0.3s ease;
    border-radius: 0;
}

.back-btn:hover {
    background: #e8e8e8;
    border-color: #ccc;
}

.back-btn:focus {
    outline: 2px solid #007bff;
    outline-offset: 2px;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .confirm-section {
        padding: 20px 15px;
    }

    .confirm-title {
        font-size: 1.5rem;
    }

    .confirm-content {
        padding: 20px;
    }

    .confirm-item {
        margin-bottom: 20px;
        padding-bottom: 20px;
    }

    .confirm-buttons {
        flex-direction: column;
        align-items: center;
    }

    .back-btn,
    .submit-btn {
        width: 100%;
        max-width: 300px;
    }
}