/* ===== 子ども参加フロー用スタイル ===== */

/* 背景 */
.join-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-color);
    padding: 1rem;
}

/* カード */
.join-card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 1.75rem 2rem;
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow);
    text-align: center;
}

/* ===== ロゴ ===== */
.join-logo {
    margin-bottom: 1.5rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.join-logo-icon {
    margin-bottom: 0.75rem;
}

.join-logo-icon i {
    font-size: 3rem;
    color: var(--primary-color);
}

.join-logo h1 {
    font-size: 2rem;
    color: var(--dark-color);
    line-height: 1.3;
}

.join-logo p {
    color: var(--secondary-color);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

/* ===== ステップ案内 ===== */
.join-steps {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.4rem;
    margin-bottom: 1.5rem;
}

.join-step {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.78rem;
    color: var(--secondary-color);
    opacity: 0.45;
    transition: all 0.3s ease;
}

.join-step.active {
    opacity: 1;
    color: var(--primary-color);
    font-weight: 600;
}

.join-step.done {
    opacity: 1;
    color: var(--success-color);
}

.join-step-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--border-color);
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--white);
    flex-shrink: 0;
}

.join-step.active .join-step-num {
    background: var(--primary-color);
}

.join-step.done .join-step-num {
    background: var(--success-color);
}

.join-step-arrow {
    color: var(--border-color);
    font-size: 0.65rem;
    margin: 0 0.15rem;
}

/* ===== QRスキャナー ===== */
.join-scanner {
    margin: 0 0 1.5rem;
}

.join-scanner-viewport {
    position: relative;
    width: 100%;
    aspect-ratio: 1;
    max-width: 280px;
    margin: 0 auto 1.25rem;
    border-radius: var(--border-radius);
    overflow: hidden;
    background: var(--dark-color);
}

.join-scanner-viewport video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.join-scanner-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.join-scanner-frame {
    width: 180px;
    height: 180px;
    position: relative;
}

.join-scanner-corner {
    position: absolute;
    width: 24px;
    height: 24px;
    border-color: var(--white);
    border-style: solid;
    border-width: 0;
}

.join-scanner-corner:nth-child(1) {
    top: 0;
    left: 0;
    border-top-width: 3px;
    border-left-width: 3px;
    border-top-left-radius: 8px;
}

.join-scanner-corner:nth-child(2) {
    top: 0;
    right: 0;
    border-top-width: 3px;
    border-right-width: 3px;
    border-top-right-radius: 8px;
}

.join-scanner-corner:nth-child(3) {
    bottom: 0;
    left: 0;
    border-bottom-width: 3px;
    border-left-width: 3px;
    border-bottom-left-radius: 8px;
}

.join-scanner-corner:nth-child(4) {
    bottom: 0;
    right: 0;
    border-bottom-width: 3px;
    border-right-width: 3px;
    border-bottom-right-radius: 8px;
}

.join-scanner-line {
    position: absolute;
    left: 8px;
    right: 8px;
    height: 2px;
    background: var(--primary-color);
    animation: join-scan-line 2s ease-in-out infinite;
    display: none;
}

.join-scanner.scanning .join-scanner-line {
    display: block;
}

@keyframes join-scan-line {
    0%, 100% {
        top: 8px;
    }
    50% {
        top: calc(100% - 10px);
    }
}

/* カメラ停止中のプレースホルダー */
.join-scanner-placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    color: rgba(255, 255, 255, 0.5);
}

.join-scanner-placeholder i {
    font-size: 2.5rem;
}

.join-scanner-placeholder p {
    font-size: 0.85rem;
}

.join-scanner.scanning .join-scanner-placeholder {
    display: none;
}

/* ===== ステータスバー ===== */
.join-status {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: var(--light-color);
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    color: var(--secondary-color);
    margin-bottom: 1.25rem;
    transition: all 0.3s ease;
}

.join-status.scanning {
    background: var(--light-color);
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}

.join-status.success {
    background: var(--light-color);
    color: var(--success-color);
    border: 1px solid var(--success-color);
}

.join-status.error {
    background: var(--light-color);
    color: var(--danger-color);
    border: 1px solid var(--danger-color);
}

/* ===== ボタン ===== */
.join-btn-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.join-btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    padding: 1rem;
    font-size: 1.05rem;
    font-weight: 600;
    font-family: inherit;
    color: var(--white);
    background: var(--primary-color);
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.join-btn-primary:hover {
    background: var(--primary-hover);
}

.join-btn-stop {
    display: none;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    padding: 0.85rem;
    font-size: 0.95rem;
    font-weight: 500;
    font-family: inherit;
    color: var(--danger-color);
    background: var(--light-color);
    border: 1px solid var(--danger-color);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
}

.join-btn-stop:hover {
    background: var(--danger-color);
    color: var(--white);
}

.join-scanner.scanning .join-btn-primary {
    display: none;
}

.join-scanner.scanning .join-btn-stop {
    display: inline-flex;
}

/* ===== フッター ===== */
.join-footer {
    margin-top: 1.5rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--border-color);
}

.join-footer a {
    color: var(--secondary-color);
    text-decoration: none;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    transition: color 0.3s ease;
}

.join-footer a:hover {
    color: var(--primary-color);
}

/* ===== 参加確認ページ ===== */
.join-welcome {
    margin-bottom: 1.5rem;
}

.join-welcome-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: var(--success-color);
    border-radius: 50%;
    margin-bottom: 1rem;
}

.join-welcome-icon i {
    font-size: 1.75rem;
    color: var(--white);
}

.join-welcome h2 {
    font-size: 1.25rem;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.join-welcome-family {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--light-color);
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--secondary-color);
    margin-top: 0.25rem;
}

.join-welcome-family i {
    color: var(--primary-color);
}

/* 参加者情報 */
.join-member-info {
    background: var(--light-color);
    border-radius: var(--border-radius);
    padding: 1rem 1.25rem;
    margin-bottom: 1.5rem;
    text-align: left;
}

/* フォーム入力欄（parent_join用） */
.join-form-fields {
    background: var(--light-color);
    border-radius: var(--border-radius);
    padding: 1.25rem;
    margin-bottom: 1.5rem;
    text-align: left;
}

.join-form-fields .form-row {
    margin-bottom: 1rem;
}

.join-form-fields .form-group {
    margin-bottom: 1rem;
}

.join-form-fields .form-group:last-child {
    margin-bottom: 0;
}

.join-member-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0;
}

.join-member-row + .join-member-row {
    border-top: 1px solid var(--border-color);
}

.join-member-row i {
    color: var(--primary-color);
    width: 20px;
    text-align: center;
    flex-shrink: 0;
}

.join-member-label {
    color: var(--secondary-color);
    font-size: 0.85rem;
    min-width: 48px;
}

.join-member-value {
    font-weight: 600;
    color: var(--dark-color);
}

/* 機能リスト */
.join-features {
    margin-bottom: 1.5rem;
}

.join-features h3 {
    font-size: 0.95rem;
    color: var(--dark-color);
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.join-features h3 i {
    color: var(--primary-color);
}

.join-feature-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 0.5rem;
}

.join-feature-list li {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.65rem 0.85rem;
    background: var(--light-color);
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    text-align: left;
}

.join-feature-list li i {
    color: var(--success-color);
    width: 18px;
    text-align: center;
    flex-shrink: 0;
}

/* 参加ボタン（大） */
.join-btn-join {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    width: 100%;
    padding: 1.1rem;
    font-size: 1.1rem;
    font-weight: 600;
    font-family: inherit;
    color: var(--white);
    background: var(--success-color);
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
}

.join-btn-join:hover {
    opacity: 0.9;
}

/* エラー表示 */
.join-error {
    margin-bottom: 1.5rem;
}

.join-error-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--light-color);
    border-radius: 50%;
    margin-bottom: 0.75rem;
}

.join-error-icon i {
    font-size: 1.5rem;
    color: var(--danger-color);
}

.join-error p {
    color: var(--secondary-color);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* 招待情報（tokenモード） */
.join-invite-info {
    background: var(--light-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 0.75rem 1rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--secondary-color);
}

/* 有効期限 */
.join-expiry {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    font-size: 0.85rem;
    color: var(--secondary-color);
    margin-top: 1rem;
}

.join-expiry.expired {
    color: var(--danger-color);
}

/* 区切り線 */
.join-divider {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin: 1.25rem 0;
    color: var(--secondary-color);
    font-size: 0.85rem;
}

.join-divider::before,
.join-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border-color);
}

/* ===== レスポンシブ ===== */
@media (max-width: 480px) {
    .join-page {
        padding: 0.75rem;
        align-items: flex-start;
        padding-top: 1.5rem;
    }

    .join-card {
        padding: 2rem 1.5rem;
    }

    .join-scanner-viewport {
        max-width: 240px;
    }

    .join-scanner-frame {
        width: 160px;
        height: 160px;
    }

    .join-logo-icon i {
        font-size: 2.5rem;
    }

    .join-logo h1 {
        font-size: 1.8rem;
    }

    .join-steps {
        gap: 0.25rem;
    }

    .join-step {
        font-size: 0.72rem;
    }
}

@media (min-width: 481px) and (max-width: 768px) {
    .join-scanner-viewport {
        max-width: 260px;
    }
}