/* DeskTalk Widget CSS (Chatwoot-like, v0.3) */

:root {
    --dt-bg: #ffffff;
    --dt-surface: #ffffff;
    --dt-muted: #6b7280;
    --dt-text: #111827;
    --dt-border: #e5e7eb;
    --dt-soft: #f6f7f9;
    --dt-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    --dt-radius: 14px;
    --dt-radius-sm: 10px;
    --dt-accent: #2563eb;
    --dt-accent-soft: rgba(37, 99, 235, 0.1);
    --dt-me: #e8f0ff;
    --dt-them: #f3f4f6;
}

.desktalk-widget.dt-card {
    width: 100%;
    max-width: 420px;
    background: var(--dt-surface);
    border: 1px solid var(--dt-border);
    border-radius: var(--dt-radius);
    box-shadow: var(--dt-shadow);
    overflow: hidden;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--dt-text);
}

.dt-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 14px 14px 12px;
    background: linear-gradient(180deg, #ffffff, var(--dt-soft));
    border-bottom: 1px solid var(--dt-border);
}

.dt-title {
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.2px;
    line-height: 1.2;
}

.dt-subtitle {
    margin-top: 2px;
    font-size: 12px;
    color: var(--dt-muted);
    line-height: 1.2;
}

.dt-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    padding: 6px 10px;
    border-radius: 999px;
    background: rgba(16, 185, 129, 0.12);
    color: #047857;
    border: 1px solid rgba(16, 185, 129, 0.18);
}

.dt-badge::before {
    content: '';
    width: 7px;
    height: 7px;
    border-radius: 999px;
    background: #10b981;
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.12);
}

.dt-body {
    position: relative;
    background: var(--dt-bg);
}

.desktalk-messages.dt-messages {
    min-height: 220px;
    max-height: 420px;
    overflow-y: auto;
    padding: 14px;
    background: var(--dt-bg);
    scroll-behavior: smooth;
}

.dt-empty {
    position: absolute;
    inset: 0;
    display: grid;
    place-content: center;
    gap: 6px;
    text-align: center;
    padding: 20px;
    color: var(--dt-muted);
    pointer-events: none;
}

.dt-empty__title {
    font-weight: 700;
    color: var(--dt-text);
    font-size: 14px;
}

.dt-empty__text {
    font-size: 12px;
    line-height: 1.6;
    max-width: 28em;
}

.desktalk-message {
    display: inline-block;
    max-width: 78%;
    background: var(--dt-them);
    border: 1px solid rgba(17, 24, 39, 0.06);
    border-radius: 14px;
    padding: 10px 12px;
    margin: 0 0 10px 0;
    font-size: 14px;
    line-height: 1.55;
    word-break: break-word;
    white-space: pre-wrap;
    animation: dtPop 140ms ease-out;
}

.desktalk-message--me {
    background: var(--dt-me);
    border-color: rgba(37, 99, 235, 0.12);
    margin-left: auto;
}

@keyframes dtPop {
    from {
        transform: translateY(2px);
        opacity: 0.7;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.desktalk-form.dt-composer {
    border-top: 1px solid var(--dt-border);
    background: var(--dt-surface);
    padding: 10px 12px 12px;
}

.dt-composer__row {
    display: flex;
    gap: 10px;
    align-items: flex-end;
}

.desktalk-input.dt-input {
    flex: 1 1 auto;
    width: 100%;
    border: 1px solid var(--dt-border);
    border-radius: 12px;
    padding: 10px 12px;
    resize: none;
    font-size: 14px;
    line-height: 1.5;
    background: #fff;
    outline: none;
    min-height: 42px;
    max-height: 140px;
    overflow-y: auto;
}

.desktalk-input.dt-input:focus {
    border-color: rgba(37, 99, 235, 0.55);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

.desktalk-submit.dt-send {
    flex: 0 0 auto;
    border: none;
    border-radius: 12px;
    background: var(--dt-accent);
    color: #fff;
    padding: 10px 14px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 700;
    line-height: 1;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 8px 18px rgba(37, 99, 235, 0.18);
}

.desktalk-submit.dt-send:hover {
    filter: brightness(1.03);
}

.desktalk-form.is-loading .desktalk-submit,
.desktalk-submit:disabled {
    opacity: 0.55;
    cursor: not-allowed;
    box-shadow: none;
}

.dt-send__icon {
    opacity: 0.9;
    transform: translateY(-1px);
}

.dt-hint {
    margin-top: 8px;
    font-size: 11px;
    color: var(--dt-muted);
}

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

@media (max-width: 480px) {
    .desktalk-widget.dt-card {
        max-width: none;
        border-radius: 16px;
    }

    .desktalk-messages.dt-messages {
        max-height: 55vh;
    }
}