/* ==========================================================================
   Component: Discussion
   Description: Reusable discussion/comment section component.
   Extracted from p-video-detail and renamed to c-discussion.
   ========================================================================== */

/* Discussion Section */
.c-discussion {
    display: flex;
    flex-direction: column;
    gap: 8px;
    border: none;
    border-radius: 0;
    overflow: hidden;
    background: var(--color-white);
}

/* Discussion Header */
.c-discussion__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--color-white);
}
.c-discussion__header-left {
    display: flex;
    align-items: center;
    gap: 8px;
}
.c-discussion__title {
    font-weight: bold;
    font-size: 18px;
    color: var(--color-navy);
}
.c-discussion__chevron {
    color: var(--color-primary);
    font-size: 14px;
    transition: transform 0.3s;
    display: none;
}
.c-discussion__header.is-active .c-discussion__chevron {
    transform: rotate(180deg);
}
.c-discussion__label {
    font-size: 12px;
    color: var(--color-text-sub);
}

/* Subtitle */
.c-discussion__subtitle {
    margin: 0;
    font-size: 15px;
    color: #5B5B5B;
}

/* Discussion Preview (SP closed state) */
.c-discussion__preview {
    display: none;
}
.c-discussion__preview-avatar {
    display: none;
}
.c-discussion__preview p {
    margin: 0;
    font-size: 13px;
    color: var(--color-text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Discussion Content */
.c-discussion__content {
    display: flex;
    flex-direction: column;
    gap: 24px;
    background: var(--color-white);
}

/* Comment Form - PC */
.c-discussion__form--pc {
    display: flex;
    flex-direction: column;
    gap: 15px;
}
.c-discussion__form--sp {
    display: none;
}
.c-discussion__input-wrap {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}
/* フォームアバター */
.c-discussion__form-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    flex-shrink: 0;
    object-fit: cover;
}

/* 入力エリア内部 */
.c-discussion__input-inner {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

/* ボタン右寄せ */
.c-discussion__input-actions {
    display: flex;
    justify-content: flex-end;
}

.c-discussion__input {
    flex: 1;
    padding: 8px 16px;
    border: 1px solid #A6BEE0;
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    background: #F6F6F6;
    resize: none;
    height: 40px;
    min-height: 40px;
    overflow: hidden;
    box-sizing: border-box;
}
.c-discussion--registered .c-discussion__input {
    background: var(--color-white);
}
.c-discussion__input:focus {
    outline: none;
    border-color: var(--color-primary);
    background: var(--color-white);
}
.c-discussion__input::placeholder {
    color: var(--color-gray);
}
.c-discussion__submit {
    display: inline-block;
    background: #5B5B5B;
    color: var(--color-white);
    padding: 8px 12px;
    border: none;
    border-radius: 8px;
    font-weight: bold;
    font-size: 14px;
    cursor: pointer;
    transition: opacity 0.2s;
    white-space: nowrap;
}
.c-discussion--registered .c-discussion__submit {
    background: #2873C9;
}
.c-discussion__submit:hover {
    opacity: 0.8;
}
.c-discussion__input:disabled {
    cursor: not-allowed;
}
.c-discussion__submit:disabled {
    cursor: not-allowed;
}

/* Comments List */
.c-discussion__list {
    display: flex;
    flex-direction: column;
    gap: 24px;
    max-height: 804px;
    overflow-y: auto;
    padding-right: 8px;
}
.c-discussion__list .js-loading {
    text-align: center;
    color: var(--color-text-sub);
    padding: 40px 20px;
}
.c-discussion__empty {
    text-align: center;
    color: #333333;
    font-size: 14px;
    margin: 0;
}

/* Comment Item */
.c-discussion__comment {
    display: flex;
    gap: 12px;
}
.c-discussion__comment-img {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    flex-shrink: 0;
    background: #ddd;
    overflow: hidden;
    object-fit: cover;
}
.c-discussion__comment-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.c-discussion__comment-header {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}
.c-discussion__comment-name {
    font-weight: bold;
    font-size: 14px;
    color: var(--color-text);
    line-height: 1;
}
.c-discussion__comment-badge {
    display: inline-block;
    padding: 4px 8px;
    background: #F3F8FF;
    color: #499EFF;
    font-size: 12px;
    border-radius: 8px;
    line-height: 1;
}
.c-discussion__comment-time {
    font-size: 12px;
    color: #718096;
    line-height: 1;
}
.c-discussion__comment-text {
    font-size: 14px;
    line-height: 1.7;
    color: var(--color-text);
    margin: 0;
}

/* Read More / Show Less */
.c-discussion__comment-text.is-truncated {
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.c-discussion__read-more {
    display: inline-block;
    align-self: flex-start;
    font-size: 13px;
    color: #2873C9;
    cursor: pointer;
    border: none;
    background: none;
    padding: 0;
}
.c-discussion__read-more--collapse {
    color: #718096;
}
.c-discussion__read-more:hover {
    text-decoration: underline;
}

/* Login Notice */
.c-discussion__login-notice {
    text-align: center;
}
.c-discussion__login-notice p {
    margin: 0;
    font-size: 14px;
    color: var(--color-text-sub);
}
.c-discussion__login-notice a {
    color: var(--color-primary);
    font-weight: bold;
}

/* Display Name Registration */
.c-discussion__displayname-notice {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.c-discussion__displayname-notice.is-hidden {
    display: none;
}
.c-discussion__displayname-form {
    display: flex;
    gap: 12px;
}
.c-discussion__displayname-input {
    flex: 1;
    padding: 8px 12px;
    border: 1px solid #A6BEE0;
    border-radius: 8px;
    font-size: 14px;
    height: 40px;
    box-sizing: border-box;
}
.c-discussion__displayname-submit {
    background: var(--color-primary);
    color: var(--color-white);
    padding: 8px 12px;
    border: none;
    border-radius: 8px;
    font-weight: bold;
    font-size: 14px;
    cursor: pointer;
    transition: opacity 0.2s;
    white-space: nowrap;
}
.c-discussion__displayname-submit:hover {
    opacity: 0.8;
}

/* ==========================================================================
   SP (Mobile) Styles
   ========================================================================== */
@media screen and (max-width: 767px) {

    /* Discussion */
    .c-discussion {
        display: flex;
        flex-direction: column;
        border: none;
        border-radius: 8px;
        box-shadow: 0 0 10px 0 rgba(0, 0, 0, 0.25);
        padding: 8px;
    }

    .c-discussion__header {
        padding: 0;
        cursor: pointer;
    }
    .c-discussion__header-left {
        width: 100%;
        justify-content: space-between;
    }
    .c-discussion__title {
        font-size: 16px;
    }
    .c-discussion__chevron {
        display: inline-block;
        width: 17px;
        height: 17px;
        font-size: 17px;
        color: #1E3A5F;
    }
    .c-discussion__label {
        font-size: 11px;
    }

    /* Subtitle */
    .c-discussion__subtitle {
        font-size: 13px;
        padding: 0;
    }

    .c-discussion__preview {
        display: flex;
        align-items: center;
        gap: 8px;
        padding: 0;
    }
    .c-discussion__preview-avatar {
        display: block;
        width: 36px;
        height: 36px;
        border-radius: 50%;
        flex-shrink: 0;
        object-fit: cover;
    }
    .c-discussion__preview.is-hidden {
        display: none;
    }

    .c-discussion__content {
        display: none;
    }
    .c-discussion__content.is-open {
        display: flex;
        flex-direction: column;
        gap: 24px;
    }

    .c-discussion__form--pc {
        display: none;
    }
    .c-discussion__form--sp {
        display: block;
        padding: 0;
    }
    .c-discussion__input {
        height: 67px;
        min-height: 67px;
    }
    .c-discussion__form--sp .c-discussion__input {
        width: 100%;
    }
    .c-discussion__form--sp .c-discussion__submit {
        font-size: 14px;
    }
    .c-discussion__list {
        padding: 0;
        max-height: 499px;
    }
    .c-discussion__empty {
        font-size: 13px;
        padding-bottom: 24px;
    }
    .c-discussion__list::-webkit-scrollbar {
        width: 6px;
    }
    .c-discussion__list::-webkit-scrollbar-track {
        background: var(--color-white);
    }
    .c-discussion__list::-webkit-scrollbar-thumb {
        background: #ccc;
        border-radius: 3px;
    }
    .c-discussion__comment {
        gap: 10px;
    }
    
    .c-discussion__comment-body {
        padding-right: 16px;
    }

    .c-discussion__comment-img {
        width: 36px;
        height: 36px;
    }
    .c-discussion__comment-header {
        font-size: 12px;
    }
    .c-discussion__comment-name {
        font-size: 12px;
        font-weight: normal;
        color: #5B5B5B;
    }
    .c-discussion__comment-badge {
        font-size: 12px;
        padding: 4px 8px;
    }
    .c-discussion__comment-time {
        font-size: 12px;
    }
    .c-discussion__comment-text {
        font-size: 13px;
        line-height: 1.5;
    }

    .c-discussion__input-inner{
        padding-top: 8px;
    }

    .c-discussion__displayname-form {
        flex-direction: column;
        align-items: flex-end;
        gap: 8px;
    }
    .c-discussion__displayname-input-row {
        display: flex;
        align-items: center;
        gap: 8px;
        width: 100%;
    }
    .c-discussion__displayname-input-row .c-discussion__form-avatar {
        width: 36px;
        height: 36px;
    }
    .c-discussion__displayname-input-row .c-discussion__displayname-input {
        flex: 1;
        min-width: 0;
    }
    .c-discussion__displayname-submit,
    .c-discussion__submit {
        font-size: 13px;
    }
}