/* ------------------------------------------------------------------
   BizFollow LPチャット  スタイル
   すべてのクラス名を bfchat- で始めることで、
   WordPressテーマ側のCSSとの衝突を避けている。
   ------------------------------------------------------------------ */

.bfchat {
    --bfchat-accent:      #1f6feb;
    --bfchat-accent-dark: #1a5fcc;
    --bfchat-bg:          #ffffff;
    --bfchat-log-bg:      #f6f8fa;
    --bfchat-border:      #dfe3e8;
    --bfchat-text:        #1f2328;
    --bfchat-text-sub:    #6b7280;
    --bfchat-bot-bubble:  #ffffff;

    max-width: 680px;
    margin: 0 auto;
    font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans",
                 "Noto Sans JP", "Yu Gothic", Meiryo, sans-serif;
    font-size: 15px;
    line-height: 1.7;
    color: var(--bfchat-text);
    box-sizing: border-box;
}

.bfchat *,
.bfchat *::before,
.bfchat *::after {
    box-sizing: border-box;
}

/* 画面には出さず、読み上げソフトにだけ伝えるラベル */
.bfchat-sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
    border: 0;
}

/* ---------- パネル本体 ---------- */

.bfchat-panel {
    display: flex;
    flex-direction: column;
    background: var(--bfchat-bg);
    border: 1px solid var(--bfchat-border);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(16, 24, 40, .06),
                0 8px 24px rgba(16, 24, 40, .08);
}

.bfchat-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 16px;
    background: var(--bfchat-accent);
    color: #fff;
}

.bfchat-header-icon {
    flex: 0 0 auto;
    width: 22px;
    height: 22px;
}

.bfchat-title {
    flex: 1 1 auto;
    margin: 0;
    font-size: 15px;
    font-weight: 600;
    line-height: 1.4;
    color: #fff;
}

.bfchat-close {
    flex: 0 0 auto;
    width: 28px;
    height: 28px;
    padding: 0;
    border: 0;
    border-radius: 6px;
    background: transparent;
    color: #fff;
    font-size: 20px;
    line-height: 1;
    cursor: pointer;
}

.bfchat-close:hover {
    background: rgba(255, 255, 255, .18);
}

/* ---------- 会話ログ ---------- */

.bfchat-log {
    flex: 1 1 auto;
    min-height: 260px;
    max-height: 420px;
    padding: 16px;
    overflow-y: auto;
    background: var(--bfchat-log-bg);
    overscroll-behavior: contain;
}

.bfchat-msg {
    display: flex;
    margin-bottom: 14px;
}

.bfchat-msg:last-child {
    margin-bottom: 0;
}

.bfchat-msg-user {
    justify-content: flex-end;
}

.bfchat-msg-bot {
    justify-content: flex-start;
}

.bfchat-bubble {
    max-width: 82%;
    padding: 10px 14px;
    border-radius: 14px;
    white-space: pre-wrap;
    word-wrap: break-word;
    overflow-wrap: anywhere;
}

.bfchat-msg-user .bfchat-bubble {
    background: var(--bfchat-accent);
    color: #fff;
    border-bottom-right-radius: 4px;
}

.bfchat-msg-bot .bfchat-bubble {
    background: var(--bfchat-bot-bubble);
    border: 1px solid var(--bfchat-border);
    border-bottom-left-radius: 4px;
}

/* ---------- 入力待ちの「…」表示 ---------- */

.bfchat-dots {
    display: inline-flex;
    gap: 4px;
    padding: 2px 0;
}

.bfchat-dots i {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #b6bcc4;
    animation: bfchat-blink 1.2s infinite ease-in-out;
}

.bfchat-dots i:nth-child(2) { animation-delay: .2s; }
.bfchat-dots i:nth-child(3) { animation-delay: .4s; }

@keyframes bfchat-blink {
    0%, 80%, 100% { opacity: .3; }
    40%           { opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
    .bfchat-dots i { animation: none; opacity: .6; }
}

/* ---------- 問い合わせ導線（範囲外のとき表示） ---------- */

.bfchat-cta {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--bfchat-border);
}

.bfchat-cta-btn {
    display: inline-block;
    padding: 9px 18px;
    border-radius: 8px;
    background: var(--bfchat-accent);
    color: #fff !important;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none !important;
}

.bfchat-cta-btn:hover {
    background: var(--bfchat-accent-dark);
    color: #fff !important;
}

/* ---------- 入力フォーム ---------- */

.bfchat-form {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    padding: 12px;
    border-top: 1px solid var(--bfchat-border);
    background: var(--bfchat-bg);
}

.bfchat-input {
    flex: 1 1 auto;
    max-height: 120px;
    padding: 10px 12px;
    border: 1px solid var(--bfchat-border);
    border-radius: 8px;
    font-family: inherit;
    font-size: 15px;
    line-height: 1.6;
    color: var(--bfchat-text);
    background: #fff;
    resize: none;
    overflow-y: auto;
}

.bfchat-input:focus {
    outline: 2px solid var(--bfchat-accent);
    outline-offset: -1px;
    border-color: var(--bfchat-accent);
}

.bfchat-send {
    flex: 0 0 auto;
    padding: 10px 20px;
    border: 0;
    border-radius: 8px;
    background: var(--bfchat-accent);
    color: #fff;
    font-family: inherit;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
}

.bfchat-send:hover:not(:disabled) {
    background: var(--bfchat-accent-dark);
}

.bfchat-send:disabled {
    opacity: .5;
    cursor: default;
}

.bfchat-note {
    margin: 0;
    padding: 0 14px 12px;
    font-size: 12px;
    line-height: 1.6;
    color: var(--bfchat-text-sub);
    background: var(--bfchat-bg);
}

/* ---------- 画面右下に出す形（mode="float"） ---------- */

.bfchat[data-mode="float"] {
    position: fixed;
    right: 20px;
    bottom: 20px;
    z-index: 99999;
    max-width: 380px;
    width: calc(100% - 40px);
    margin: 0;
}

.bfchat[data-mode="float"] .bfchat-panel {
    display: none;
}

.bfchat[data-mode="float"].is-open .bfchat-panel {
    display: flex;
}

.bfchat[data-mode="float"].is-open .bfchat-launcher {
    display: none;
}

.bfchat-launcher {
    display: block;
    margin-left: auto;
    padding: 13px 22px;
    border: 0;
    border-radius: 999px;
    background: var(--bfchat-accent);
    color: #fff;
    font-family: inherit;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 4px 14px rgba(31, 111, 235, .35);
}

.bfchat-launcher:hover {
    background: var(--bfchat-accent-dark);
}

.bfchat[data-mode="inline"] .bfchat-launcher,
.bfchat[data-mode="inline"] .bfchat-close {
    display: none;
}

/* ---------- スマートフォン ---------- */

@media (max-width: 600px) {
    .bfchat-log {
        min-height: 220px;
        max-height: 50vh;
    }

    .bfchat[data-mode="float"] {
        right: 12px;
        bottom: 12px;
        width: calc(100% - 24px);
    }

    .bfchat-bubble {
        max-width: 88%;
    }
}