.dt-line-auth {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px dashed var(--dt-border);
    display: none;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.dt-line-auth.is-visible {
    display: flex;
}
/* DeskTalk App full view (v0.3) */

:root,
#desktalk-app {
    --dt-bg: #f4f6fb;
    --dt-panel: #ffffff;
    --dt-border: rgba(15, 23, 42, 0.08);
    --dt-muted: #64748b;
    --dt-text: #111827;
    --dt-accent: #2563eb;
    --dt-accent-soft: rgba(37, 99, 235, 0.16);
    --dt-bubble-them: rgba(15, 23, 42, 0.06);
    --dt-bubble-me: rgba(37, 99, 235, 0.12);
    --dt-input-bg: rgba(15, 23, 42, 0.04);
}

#desktalk-app[data-theme="dark"] {
    --dt-bg: #0f172a;
    --dt-panel: #101828;
    --dt-border: rgba(148, 163, 184, 0.2);
    --dt-muted: #94a3b8;
    --dt-text: #f8fafc;
    --dt-accent: #3b82f6;
    --dt-accent-soft: rgba(59, 130, 246, 0.25);
    --dt-bubble-them: rgba(148, 163, 184, 0.16);
    --dt-bubble-me: rgba(59, 130, 246, 0.22);
    --dt-input-bg: rgba(255, 255, 255, 0.04);
}

@media (prefers-color-scheme: dark) {
    #desktalk-app:not([data-theme]) {
        --dt-bg: #0f172a;
        --dt-panel: #101828;
        --dt-border: rgba(148, 163, 184, 0.2);
        --dt-muted: #94a3b8;
        --dt-text: #f8fafc;
        --dt-accent: #3b82f6;
        --dt-accent-soft: rgba(59, 130, 246, 0.25);
        --dt-bubble-them: rgba(148, 163, 184, 0.16);
        --dt-bubble-me: rgba(59, 130, 246, 0.22);
        --dt-input-bg: rgba(255, 255, 255, 0.04);
    }
}

body.dt-app-page {
    overflow: hidden;
    background: var(--dt-bg);
}

body.dt-app-page .wp-site-blocks,
body.dt-app-page main,
body.dt-app-page .wp-block-post-content,
body.dt-app-page .entry-content,
body.dt-app-page .has-global-padding {
    margin: 0 !important;
    padding: 0 !important;
    max-width: none !important;
}

.desktalk-app {
    display: grid;
    grid-template-columns: 280px minmax(0, 1fr);
    height: 100vh;
    height: 100dvh;
    min-height: 100vh;
    background: var(--dt-bg);
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    color: var(--dt-text);
}

#desktalk-app.is-fullscreen {
    position: fixed;
    inset: 0;
    width: 100vw;
    height: 100vh;
    height: 100dvh;
    margin: 0;
    border-radius: 0;
    border: none;
    box-shadow: none;
    z-index: 9999;
}

.dt-app-sidebar {
    background: var(--dt-panel);
    border-right: 1px solid var(--dt-border);
    display: flex;
    flex-direction: column;
    min-height: 0;
}

.dt-app-sidebar__header {
    padding: 24px 20px 12px;
    border-bottom: 1px solid var(--dt-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.dt-app-sidebar__header h2 {
    margin: 0;
    font-size: 18px;
}

.dt-app-sidebar__header p {
    margin: 6px 0 0;
    font-size: 13px;
    color: var(--dt-muted);
}

.dt-app-sidebar__list {
    flex: 1;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    min-height: 0;
    overflow: auto;
}

.dt-app-sidebar__new {
    border: 1px solid var(--dt-border);
    border-radius: 8px;
    padding: 6px 12px;
    background: var(--dt-panel);
    color: var(--dt-text);
    font-size: 13px;
    cursor: pointer;
    transition: background 0.2s ease, border-color 0.2s ease;
}

.dt-app-sidebar__new:hover {
    border-color: var(--dt-accent);
    background: var(--dt-accent-soft);
}

.dt-app-thread-list {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.dt-app-thread {
    border: 1px solid var(--dt-border);
    border-radius: 12px;
    padding: 12px;
    background: var(--dt-panel);
    cursor: pointer;
    text-align: left;
    display: flex;
    flex-direction: column;
    gap: 6px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.dt-app-thread:hover {
    border-color: var(--dt-accent);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
}

.dt-app-thread.is-active {
    border-color: var(--dt-accent);
    box-shadow: 0 6px 16px rgba(37, 99, 235, 0.15);
}

.dt-app-thread__row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
}

.dt-app-thread__title {
    margin: 0;
    font-size: 14px;
    font-weight: 600;
    color: var(--dt-text);
}

.dt-app-thread__status {
    font-size: 11px;
    border-radius: 999px;
    padding: 2px 8px;
    background: var(--dt-bubble-them);
    color: var(--dt-muted);
    text-transform: uppercase;
}

.dt-app-thread__excerpt {
    margin: 0;
    font-size: 12px;
    color: var(--dt-muted);
    line-height: 1.4;
}

.dt-app-thread__meta {
    font-size: 11px;
    color: var(--dt-muted);
}

.dt-app-main {
    display: flex;
    flex-direction: column;
    background: var(--dt-bg);
    min-height: 0;
}

.dt-app-main__header {
    padding: 18px 24px;
    border-bottom: 1px solid var(--dt-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

.dt-app-search {
    border-bottom: 1px solid var(--dt-border);
    background: var(--dt-panel);
}

.dt-app-search.is-collapsed .dt-app-search__results {
    display: none;
}

.dt-app-search__bar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
}

.dt-search-toggle {
    border: 1px solid var(--dt-border);
    border-radius: 8px;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--dt-panel);
    cursor: pointer;
    color: var(--dt-muted);
}

.dt-app-search__form {
    flex: 1;
    display: flex;
    align-items: center;
    border: 1px solid var(--dt-border);
    border-radius: 999px;
    padding: 0 8px;
    background: var(--dt-input-bg);
}

.dt-app-search__input {
    flex: 1;
    border: none;
    background: transparent;
    padding: 8px 6px;
    font-size: 14px;
    color: var(--dt-text);
}

.dt-app-search__input:focus {
    outline: none;
}

.dt-search-clear {
    border: none;
    background: transparent;
    cursor: pointer;
    font-size: 18px;
    line-height: 1;
    color: var(--dt-muted);
}

.dt-search-clear:hover {
    color: var(--dt-text);
}

.dt-search-nav {
    display: none;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--dt-muted);
}

.dt-app-search.has-results .dt-search-nav {
    display: inline-flex;
}

.dt-search-nav__btn {
    border: 1px solid var(--dt-border);
    border-radius: 6px;
    width: 28px;
    height: 28px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--dt-panel);
    cursor: pointer;
}

.dt-search-nav__btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.dt-search-nav__count {
    min-width: 48px;
    text-align: center;
}

.dt-search-more {
    border: none;
    background: transparent;
    color: var(--dt-accent);
    font-size: 12px;
    cursor: pointer;
}

.dt-app-topbar {
    padding: 6px 24px;
    font-size: 12px;
    color: var(--dt-muted);
    background: var(--dt-panel);
    border-bottom: 1px solid var(--dt-border);
}

.dt-app-search__results {
    max-height: 220px;
    overflow-y: auto;
    border-top: 1px solid var(--dt-border);
    padding: 8px 18px 12px;
    background: var(--dt-panel);
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.dt-app-search__result {
    border: 1px solid transparent;
    border-radius: 10px;
    padding: 8px 10px;
    text-align: left;
    background: transparent;
    cursor: pointer;
    transition: border-color 0.2s ease, background 0.2s ease;
}

.dt-app-search__result:hover {
    border-color: var(--dt-border);
    background: rgba(0, 0, 0, 0.02);
}

.dt-app-search__result.is-active {
    border-color: var(--dt-accent);
    background: var(--dt-accent-soft);
}

.dt-app-search__result-meta {
    font-size: 11px;
    color: var(--dt-muted);
    margin-bottom: 4px;
}

.dt-app-search__result-text {
    font-size: 13px;
    color: var(--dt-text);
    line-height: 1.5;
}

.dt-app-search__empty {
    font-size: 12px;
    color: var(--dt-muted);
    margin: 4px 0;
}

.dt-theme-switch {
    display: inline-flex;
    padding: 4px;
    border-radius: 999px;
    border: 1px solid var(--dt-border);
    background: var(--dt-panel);
    gap: 4px;
}

.dt-button {
    border: none;
    border-radius: 10px;
    background: var(--dt-accent);
    color: #fff;
    padding: 8px 14px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.2s ease, filter 0.2s ease;
}

.dt-button:hover {
    filter: brightness(1.05);
}

.dt-button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.dt-button--secondary {
    background: var(--dt-panel);
    color: var(--dt-text);
    border: 1px solid var(--dt-border);
}

.dt-button--link {
    background: transparent;
    color: var(--dt-accent);
    border: none;
    padding: 0;
}

.dt-button--line {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #00b900;
    color: #fff;
    border: none;
}

.dt-button--line::before {
    content: '';
    width: 16px;
    height: 16px;
    background: url('https://scdn.line-apps.com/n/line_regis/img/line_icon.png') no-repeat center/contain;
    filter: brightness(0) invert(1);
}

.dt-line-auth {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px dashed var(--dt-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.dt-theme-btn {
    border: 0;
    background: transparent;
    color: var(--dt-muted);
    font-size: 12px;
    font-weight: 600;
    padding: 6px 12px;
    border-radius: 999px;
    cursor: pointer;
    transition: color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.dt-theme-btn.is-active {
    background: var(--dt-accent);
    color: #fff;
    box-shadow: 0 10px 20px var(--dt-accent-soft);
}

.dt-app-messages {
    flex: 1 1 auto;
    min-height: 0;
    padding: 24px;
    padding-bottom: calc(24px + 140px + env(safe-area-inset-bottom, 0px));
    overflow-y: auto;
    gap: 12px;
    display: flex;
    flex-direction: column;
    scroll-padding-bottom: 160px;
}

.dt-app-messages::after {
    content: '';
    height: 8px;
    flex-shrink: 0;
}

.dt-app-placeholder {
    color: var(--dt-muted);
    font-size: 14px;
    padding: 12px;
    border: 1px dashed var(--dt-border);
    border-radius: 12px;
    text-align: center;
}

.dt-app-endcap {
    text-align: center;
    font-size: 12px;
    color: var(--dt-muted);
    padding: 12px 0;
}

.dt-app-composer {
    position: sticky;
    bottom: 0;
    border-top: 1px solid var(--dt-border);
    padding: 16px 24px calc(16px + env(safe-area-inset-bottom, 0px));
    display: flex;
    gap: 12px;
    background: var(--dt-bg);
    z-index: 5;
}

.dt-app-shortcut-hint {
    font-size: 12px;
    color: var(--dt-muted);
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 6px;
}

.dt-app-shortcut-hint__text {
    white-space: normal;
}

.dt-app-shortcut-change {
    background: none;
    border: none;
    color: var(--dt-accent);
    cursor: pointer;
    font-size: 12px;
    padding: 0;
}

.dt-app-shortcut-change:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.dt-app-input {
    flex: 1;
    border: 1px solid var(--dt-border);
    border-radius: 12px;
    background: var(--dt-input-bg);
    color: var(--dt-text);
    font-size: 16px;
    padding: 10px 12px;
    resize: none;
    line-height: 1.5;
}

.dt-app-send {
    border: none;
    border-radius: 12px;
    background: var(--dt-accent);
    color: #fff;
    padding: 0 18px;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 12px 24px var(--dt-accent-soft);
    transition: filter 0.2s ease;
}

.dt-app-send:hover {
    filter: brightness(1.05);
}

.dt-auth-gate {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.dt-auth-gate[hidden] {
    display: none;
}

.dt-auth-gate__panel {
    background: var(--dt-panel);
    border-radius: 16px;
    padding: 32px 28px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
    max-width: 420px;
    width: calc(100% - 32px);
    position: relative;
    text-align: center;
}

.dt-auth-gate__title {
    margin: 0 0 8px;
    font-size: 18px;
    color: var(--dt-text);
}

.dt-auth-gate__description {
    margin: 0 0 24px;
    font-size: 14px;
    color: var(--dt-muted);
}

.dt-auth-gate__note {
    margin: 16px 0 0;
    font-size: 13px;
    color: var(--dt-muted);
}

.dt-auth-gate__logout {
    margin-top: 12px;
    border: none;
    background: none;
    color: var(--dt-accent);
    font-size: 13px;
    text-decoration: underline;
    cursor: pointer;
}

.dt-auth-gate__actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.dt-auth-gate__close {
    position: absolute;
    top: 12px;
    right: 12px;
    border: none;
    background: transparent;
    font-size: 18px;
    color: var(--dt-muted);
    cursor: pointer;
}

.dt-auth-gate__close:hover {
    color: var(--dt-text);
}

.dt-app-bubble {
    max-width: 70%;
    border-radius: 14px;
    padding: 12px 14px;
    font-size: 15px;
    line-height: 1.6;
    background: var(--dt-bubble-them);
    border: 1px solid var(--dt-border);
    align-self: flex-start;
    word-break: break-word;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
}

.dt-app-bubble--me {
    background: var(--dt-bubble-me);
    border-color: var(--dt-accent-soft);
    align-self: flex-end;
}

.dt-app-bubble.is-highlight {
    border-color: var(--dt-accent);
    box-shadow: 0 0 0 2px var(--dt-accent-soft);
    position: relative;
}

@media (max-width: 768px) {
    .desktalk-app {
        grid-template-columns: 1fr;
    }

    .dt-app-main__header {
        padding: 12px 16px;
    }

    .dt-app-topbar {
        padding: 4px 16px;
        font-size: 11px;
    }

    .dt-app-messages {
        padding: 16px;
        padding-bottom: calc(16px + 160px + env(safe-area-inset-bottom, 0px));
        gap: 10px;
    }

    .dt-app-bubble {
        max-width: 84%;
        padding: 12px 14px;
        font-size: 15px;
        line-height: 1.55;
    }
}

@media (max-width: 480px) {
    .dt-app-composer {
        flex-wrap: wrap;
        padding: 12px 16px calc(12px + env(safe-area-inset-bottom, 0px));
        gap: 10px;
    }

    .dt-app-input {
        flex-basis: 100%;
        min-height: 56px;
    }

    .dt-app-send {
        width: 100%;
        justify-content: center;
    }

    .dt-app-shortcut-hint {
        width: 100%;
        order: 3;
        margin-top: 0;
        font-size: 11px;
    }

    .dt-app-shortcut-change {
        display: none;
    }

    .dt-app-main__header {
        padding: 10px 16px;
    }

    .dt-app-messages {
        padding: 14px;
        padding-bottom: calc(14px + 170px + env(safe-area-inset-bottom, 0px));
    }

    .dt-app-bubble {
        max-width: 86%;
        padding: 10px 12px;
    }
}

mark.dt-app-highlight {
    background: var(--dt-accent-soft);
    color: var(--dt-text);
    border-radius: 6px;
    padding: 0 3px;
}

.dt-email-auth {
    padding: 20px 24px 0;
    border-bottom: 1px solid var(--dt-border);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.dt-review-banner {
    margin: 16px 24px 0;
    padding: 14px 18px;
    border-radius: 12px;
    border: 1px dashed var(--dt-accent);
    background: var(--dt-accent-soft);
    color: var(--dt-text);
    font-size: 14px;
    line-height: 1.5;
}

.dt-email-form {
    display: flex;
    gap: 10px;
}

.dt-email-form input {
    flex: 1;
    border-radius: 10px;
    border: 1px solid var(--dt-border);
    padding: 8px 12px;
    background: var(--dt-input-bg);
    color: var(--dt-text);
}

.dt-email-form button {
    border: none;
    border-radius: 10px;
    background: var(--dt-accent);
    color: #fff;
    padding: 0 14px;
    font-weight: 600;
    cursor: pointer;
}

.dt-email-status {
    font-size: 13px;
    color: var(--dt-muted);
    margin: 0;
}

.dt-email-status.is-error {
    color: #f87171;
}

[hidden] {
    display: none !important;
}

.screen-reader-text {
    position: absolute !important;
    height: 1px;
    width: 1px;
    overflow: hidden;
    clip: rect(1px, 1px, 1px, 1px);
}

@media (max-width: 960px) {
    .desktalk-app {
        grid-template-columns: 1fr;
    }

    .dt-app-sidebar {
        display: none;
    }
}

@media (max-width: 640px) {
    #desktalk-app.is-fullscreen {
        height: 100dvh;
    }
}

.dt-app-bubble--email {
    background: transparent;
    padding: 0;
    border: none;
}

.dt-email-event {
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    padding: 12px 14px;
    background: #ffffff;
    color: #111827;
    max-width: 320px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.04);
}

.dt-app-bubble--them .dt-email-event {
    background: #f8fafc;
}

.dt-email-event__subject {
    font-weight: 600;
    font-size: 14px;
    margin: 0 0 4px 0;
}

.dt-email-event__meta {
    font-size: 12px;
    color: #6b7280;
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

.dt-email-event__dot {
    color: #d1d5db;
}

.dt-email-event__snippet {
    font-size: 13px;
    color: #374151;
    margin: 10px 0 0 0;
}

.dt-email-event__actions {
    margin-top: 12px;
}

.dt-email-event__actions .dt-button {
    width: 100%;
    text-align: center;
}