/* Blogツール 紹介ページ */
.bt-page * {
    box-sizing: border-box;
}

.bt-page {
    font-family: -apple-system, BlinkMacSystemFont, 'Hiragino Kaku Gothic ProN', 'Meiryo', sans-serif;
    color: #1f2733;
    background: #f4f7fb;
    margin: 0;
    padding: 0 0 48px;
    line-height: 1.6;
}

.bt-container {
    max-width: 880px;
    margin: 0 auto;
    padding: 0 16px;
}

.bt-hero {
    background: linear-gradient(135deg, #1f4e79 0%, #2c7fb8 100%);
    color: #fff;
    padding: 32px 16px;
    text-align: center;
}
.bt-hero h1 {
    margin: 0 0 8px;
    font-size: 1.5rem;
}
.bt-hero p {
    margin: 0;
    font-size: 0.95rem;
    opacity: 0.95;
}

.bt-section {
    background: #fff;
    border: 1px solid #e2e6ec;
    border-radius: 10px;
    padding: 18px 18px;
    margin: 18px 0;
}
.bt-section h2 {
    margin: 0 0 12px;
    font-size: 1.12rem;
    color: #14304d;
    border-left: 4px solid #2c7fb8;
    padding-left: 8px;
}

.bt-notice ul {
    margin: 0;
    padding-left: 18px;
    font-size: 0.86rem;
    color: #55606e;
}
.bt-notice li { margin: 4px 0; }
.bt-notice strong { color: #33465c; }

/* パターン切替 */
.bt-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 14px;
}
.bt-tab {
    flex: 1;
    padding: 10px;
    border: 1px solid #cfd8e3;
    background: #eef3f8;
    color: #33465c;
    border-radius: 8px;
    font-weight: 700;
    cursor: pointer;
    font-size: 0.9rem;
}
.bt-tab.active {
    background: #2c7fb8;
    color: #fff;
    border-color: #2c7fb8;
}

.bt-form { display: none; }
.bt-form.active { display: block; }

.bt-leg-row {
    display: grid;
    grid-template-columns: 24px minmax(0, 1.2fr) minmax(0, 0.8fr) minmax(0, 0.8fr);
    gap: 6px;
    align-items: center;
    margin-bottom: 6px;
}
.bt-leg-row .bt-leg-num {
    font-weight: 700;
    color: #6b7280;
    text-align: center;
    font-size: 0.85rem;
}

.bt-field-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 10px;
}
.bt-field {
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex: 1 1 180px;
    min-width: 0;
}
.bt-field label {
    font-size: 0.78rem;
    color: #6b7280;
    font-weight: 700;
}

.bt-page input[type="text"],
.bt-page input[type="date"],
.bt-page input[type="time"],
.bt-page select {
    width: 100%;
    min-width: 0;
    padding: 7px 8px;
    border: 1px solid #cfd8e3;
    border-radius: 6px;
    font-size: 0.9rem;
    background: #fff;
    color: #1f2733;
}

.bt-form-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 8px;
}

.bt-calendar-entry {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 14px;
    margin: 0 0 10px;
    border: 1px solid #d8e3ee;
    border-radius: 12px;
    background: linear-gradient(180deg, #f8fbfe 0%, #f1f7fc 100%);
}

.bt-calendar-entry-copy {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.bt-calendar-entry-copy strong {
    color: #14304d;
    font-size: 0.95rem;
}

.bt-calendar-entry-copy span {
    color: #617084;
    font-size: 0.82rem;
    line-height: 1.5;
}

.bt-sub-btn {
    background: #fff;
    color: #1f4e79;
    border: 1px solid #8fb8d6;
    border-radius: 8px;
    padding: 11px 20px;
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
}

.bt-sub-btn:hover {
    background: #eef6fb;
}

.bt-leg-clear {
    display: none;
    background: #f3f5f8;
    color: #5d6775;
    border: 1px solid #d7dee7;
    border-radius: 6px;
    padding: 7px 10px;
    font-size: 0.8rem;
    font-weight: 700;
    cursor: pointer;
}

.bt-modal {
    display: none;
}

.bt-modal.is-open {
    display: block;
}

.bt-modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(13, 20, 34, 0.64);
    z-index: 3000;
}

.bt-modal-card {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: min(720px, calc(100vw - 24px));
    max-height: calc(100vh - 28px);
    overflow: auto;
    z-index: 3010;
    background: #ffffff;
    border-radius: 16px;
    border: 1px solid #dbe4ee;
    box-shadow: 0 24px 64px rgba(10, 24, 44, 0.28);
    padding: 18px 18px 16px;
}

.bt-modal-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 14px;
    margin-bottom: 14px;
}

.bt-modal-head h2 {
    margin: 0 0 4px;
    font-size: 1.12rem;
    color: #14304d;
}

.bt-modal-lead {
    margin: 0;
    color: #617084;
    font-size: 0.88rem;
    line-height: 1.65;
}

.bt-modal-close {
    width: 38px;
    height: 38px;
    border: 1px solid #d7dee7;
    border-radius: 10px;
    background: #fff;
    color: #617084;
    font-size: 1.6rem;
    line-height: 1;
    cursor: pointer;
}

.bt-modal-controls {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
    gap: 12px;
    align-items: start;
}

.bt-provider-field,
.bt-fetch-field {
    min-width: 0;
}

.bt-provider-label {
    margin: 0 0 8px;
    font-size: 0.82rem;
    color: #6b7280;
    font-weight: 700;
}

.bt-provider-group {
    display: flex;
    gap: 14px;
    flex-wrap: nowrap;
    justify-content: flex-start;
}

.bt-provider-btn {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-width: 112px;
    min-height: 104px;
    padding: 14px 16px;
    border-radius: 12px;
    border: 2px solid #e0e0e0;
    background: #fff;
    color: #444;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
}

.bt-provider-btn.google {
    background: #fff;
    border-color: #e0e0e0;
    color: #444;
}

.bt-provider-btn.outlook {
    background: #0078d4;
    border-color: #005fa3;
    color: #fff;
}

.bt-provider-btn.active {
    box-shadow: 0 0 0 3px rgba(44, 127, 184, 0.16);
    transform: translateY(-1px);
}

.bt-calendar-status {
    min-height: 22px;
    margin: 12px 0 10px;
    color: #546578;
    font-size: 0.88rem;
}

.bt-calendar-status.is-error {
    color: #b42318;
}

.bt-calendar-events {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.bt-calendar-event {
    width: 100%;
    text-align: left;
    background: #f8fbfe;
    border: 1px solid #d9e4ef;
    border-radius: 12px;
    padding: 12px 14px;
    cursor: pointer;
}

.bt-calendar-event:hover {
    border-color: #7eb0d3;
    background: #f1f8fd;
}

.bt-calendar-event-top {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    margin-bottom: 4px;
}

.bt-calendar-source {
    display: inline-flex;
    align-items: center;
    min-height: 24px;
    padding: 0 8px;
    border-radius: 999px;
    background: #deedf8;
    color: #1f4e79;
    font-size: 0.74rem;
    font-weight: 700;
}

.bt-calendar-flight {
    color: #1f2733;
    font-size: 0.96rem;
    font-weight: 700;
}

.bt-calendar-event-sub {
    display: block;
    color: #617084;
    font-size: 0.84rem;
    line-height: 1.6;
}

.bt-calendar-empty {
    border: 1px dashed #d2dce7;
    border-radius: 12px;
    padding: 18px 14px;
    color: #6c7b8b;
    font-size: 0.9rem;
    background: #fbfcfe;
}

.bt-checkbox {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.88rem;
    color: #33465c;
    margin: 8px 0;
}

.bt-radio-group {
    display: inline-flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
}
.bt-radio-group label {
    display: inline-flex;
    gap: 4px;
    align-items: center;
    font-weight: 400;
    color: #33465c;
    font-size: 0.9rem;
}

.bt-run-btn {
    background: #1f8f4e;
    color: #fff;
    border: none;
    border-radius: 8px;
    padding: 11px 20px;
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    margin-top: 6px;
}
.bt-run-btn:hover { background: #187a42; }

/* 結果確認 */
.bt-preview-frame {
    width: 100%;
    max-width: 560px;
    height: 620px;
    border: 1px solid #e2e6ec;
    border-radius: 10px;
    background: #fff;
    margin: 0 auto;
    display: block;
}

/* ダイレクトURL */
.bt-url-box { margin-top: 8px; }
.bt-url-box label {
    display: block;
    font-size: 0.8rem;
    color: #6b7280;
    font-weight: 700;
    margin: 8px 0 3px;
}
.bt-url-box input,
.bt-url-box textarea {
    width: 100%;
    padding: 8px;
    border: 1px solid #cfd8e3;
    border-radius: 6px;
    font-family: 'Consolas', 'Menlo', monospace;
    font-size: 0.8rem;
    background: #f8fafc;
    color: #1f2733;
}
.bt-url-box textarea { min-height: 68px; resize: vertical; }
.bt-copy-btn {
    margin-top: 6px;
    background: #2c7fb8;
    color: #fff;
    border: none;
    border-radius: 6px;
    padding: 7px 14px;
    font-size: 0.82rem;
    font-weight: 700;
    cursor: pointer;
}
.bt-copy-btn:hover { background: #24688f; }

.bt-hint {
    font-size: 0.8rem;
    color: #8a94a3;
    margin: 4px 0 0;
}

@media (max-width: 768px) {
    .bt-container {
        padding: 0 12px;
    }

    .bt-section {
        padding: 16px 14px;
        margin: 14px 0;
    }

    .bt-tabs {
        flex-direction: column;
        gap: 8px;
    }

    .bt-tab,
    .bt-sub-btn,
    .bt-run-btn,
    .bt-copy-btn {
        min-height: 44px;
    }

    .bt-leg-row {
        grid-template-columns: 20px minmax(0, 1.2fr) minmax(0, 0.95fr) minmax(0, 0.8fr) auto;
        gap: 8px;
        align-items: center;
        margin-bottom: 10px;
    }

    .bt-leg-row .bt-leg-num {
        grid-row: 1;
        grid-column: 1;
        align-self: center;
    }

    .bt-leg-row .bt-leg-date {
        grid-column: 2;
        grid-row: 1;
    }

    .bt-leg-row .bt-leg-airline {
        grid-column: 3;
        grid-row: 1;
    }

    .bt-leg-row .bt-leg-flightno {
        grid-column: 4;
        grid-row: 1;
    }

    .bt-leg-row .bt-leg-clear {
        display: inline-flex;
        grid-column: 5;
        grid-row: 1;
        justify-content: center;
        min-height: 40px;
        padding: 0 12px;
    }

    #bt-form-itinerary .bt-field-row {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 8px;
    }

    #bt-form-itinerary .bt-field-row .bt-field:last-child {
        grid-column: 1 / -1;
    }

    .bt-preview-frame {
        max-width: none;
        height: 70vh;
        min-height: 480px;
    }

    .bt-copy-btn {
        width: 100%;
    }

    .bt-modal-card {
        width: min(680px, calc(100vw - 18px));
        max-height: calc(100vh - 16px);
        padding: 16px 14px 14px;
    }

    .bt-modal-controls {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .bt-provider-group {
        justify-content: flex-start;
    }
}

@media (max-width: 599px) {
    .bt-page {
        font-size: 18px;
        padding: 0 0 32px;
    }

    .bt-container {
        padding: 0 10px;
    }

    .bt-hero {
        padding: 22px 14px 20px;
        text-align: left;
    }

    .bt-hero h1 {
        font-size: 1.65rem;
        line-height: 1.25;
    }

    .bt-hero p {
        font-size: 1rem;
        line-height: 1.65;
    }

    .bt-section {
        padding: 14px 12px;
        margin: 12px 0;
        border-radius: 12px;
    }

    .bt-section h2 {
        font-size: 1.1rem;
        margin-bottom: 10px;
    }

    .bt-notice ul,
    .bt-hint,
    .bt-url-box label,
    .bt-field label,
    .bt-checkbox,
    .bt-radio-group label {
        font-size: 0.95rem;
    }

    .bt-notice ul {
        line-height: 1.75;
        padding-left: 20px;
    }

    .bt-tab {
        padding: 10px 12px;
        font-size: 1rem;
        line-height: 1.45;
    }

    .bt-sub-btn {
        padding: 10px 12px;
        font-size: 16px;
    }

    .bt-calendar-entry {
        align-items: flex-start;
        gap: 10px;
        padding: 12px 12px;
    }

    .bt-calendar-entry-copy strong {
        font-size: 1rem;
    }

    .bt-calendar-entry-copy span {
        font-size: 0.9rem;
    }

    .bt-leg-row {
        grid-template-columns: 16px minmax(0, 1.15fr) minmax(0, 0.9fr) minmax(0, 0.72fr) auto;
        gap: 6px;
        margin-bottom: 10px;
    }

    .bt-leg-row .bt-leg-num {
        font-size: 0.9rem;
    }

    .bt-page input[type="text"],
    .bt-page select {
        min-height: 44px;
        padding: 10px 10px;
        font-size: 15px;
    }

    .bt-page input[type="date"],
    .bt-page input[type="time"] {
        min-height: 44px;
        font-size: 15px;
    }

    .bt-leg-clear {
        min-height: 44px;
        min-width: 68px;
        padding: 0 8px;
        font-size: 14px;
    }

    .bt-checkbox {
        align-items: flex-start;
        gap: 10px;
        margin: 10px 0;
        line-height: 1.5;
    }

    .bt-checkbox input[type="checkbox"] {
        width: 20px;
        height: 20px;
        margin-top: 2px;
        flex: 0 0 20px;
    }

    .bt-radio-group {
        gap: 10px 14px;
    }

    .bt-radio-group label {
        min-height: 24px;
        line-height: 1.45;
    }

    .bt-run-btn,
    .bt-copy-btn {
        width: 100%;
        padding: 10px 12px;
        font-size: 16px;
    }

    .bt-form-actions {
        gap: 8px;
    }

    .bt-preview-frame {
        height: 72vh;
        min-height: 520px;
    }

    .bt-url-box input,
    .bt-url-box textarea {
        padding: 10px 12px;
        font-size: 16px;
        line-height: 1.6;
    }

    .bt-url-box textarea {
        min-height: 110px;
    }

    .bt-modal-card {
        width: calc(100vw - 12px);
        max-height: calc(100vh - 10px);
        padding: 14px 10px 12px;
        border-radius: 14px;
    }

    .bt-modal-head {
        gap: 10px;
        margin-bottom: 12px;
    }

    .bt-modal-head h2 {
        font-size: 1.15rem;
    }

    .bt-modal-lead,
    .bt-calendar-status,
    .bt-calendar-event-sub,
    .bt-calendar-empty {
        font-size: 0.95rem;
    }

    .bt-provider-btn,
    .bt-modal-close {
        min-height: 44px;
    }

    .bt-provider-btn {
        flex: 1 1 calc(50% - 7px);
        min-width: 0;
        min-height: 108px;
        font-size: 15px;
        padding: 14px 10px;
    }

    .bt-calendar-event {
        padding: 12px 12px;
    }

    .bt-calendar-flight {
        font-size: 1rem;
    }

    .bt-calendar-source {
        min-height: 26px;
        font-size: 0.82rem;
    }
}