:root {
    --bg: #f5f6f7;
    --panel: #ffffff;
    --border: #e2e5e9;
    --text: #16191d;
    --muted: #6b7280;
    --accent: #0b7a63;
    --accent-soft: #e6f2ef;
    --danger: #b42318;
    --danger-soft: #fdeceb;
    --warn: #8a5a00;
    --warn-soft: #fdf3e0;
    --radius: 10px;
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #14171a;
        --panel: #1c2024;
        --border: #2c3238;
        --text: #e8eaed;
        --muted: #98a2ad;
        --accent: #2fa98c;
        --accent-soft: #16302a;
        --danger: #f07a70;
        --danger-soft: #35211f;
        --warn: #e0b060;
        --warn-soft: #33290f;
    }
}

* { box-sizing: border-box; }

/* Los contenedores usan display:flex/grid, que gana sobre el atributo
   hidden. Sin esto, el compositor se ve sin conversacion seleccionada. */
[hidden] { display: none !important; }

body {
    margin: 0;
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    font-size: 15px;
    line-height: 1.5;
}

button {
    font: inherit;
    cursor: pointer;
    border: none;
    border-radius: 8px;
    padding: 9px 16px;
    background: var(--accent);
    color: #fff;
    font-weight: 500;
}

button:disabled { opacity: .5; cursor: default; }
button.ghost { background: var(--accent-soft); color: var(--accent); }

button.link {
    background: none;
    color: var(--muted);
    padding: 4px 6px;
    font-weight: 400;
    text-decoration: underline;
}

button.link.danger { color: var(--danger); }
button.destructive { background: var(--danger); color: #fff; }

input, textarea {
    font: inherit;
    color: var(--text);
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 9px 12px;
    width: 100%;
}

input:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; }

.muted { color: var(--muted); }

.error {
    color: var(--danger);
    font-size: 13px;
    margin: 8px 0 0;
    min-height: 1em;
}

/* --- Login --------------------------------------------------------------- */

.login { min-height: 100vh; display: grid; place-items: center; padding: 24px; }

.login form {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    width: min(360px, 100%);
    display: grid;
    gap: 12px;
}

.login h1 { font-size: 20px; margin: 0; }
.login p { margin: 0; font-size: 14px; }

/* --- Layout -------------------------------------------------------------- */

.app { display: grid; grid-template-columns: 320px 1fr; height: 100vh; }

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

.threads > header {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
}

.status { display: block; font-size: 12px; color: var(--muted); }
.status.on { color: var(--accent); }
.status.off { color: var(--danger); }

.thread-list { overflow-y: auto; flex: 1; }

.thread-item {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    display: grid;
    gap: 3px;
}

.thread-item:hover { background: var(--bg); }
.thread-item.active { background: var(--accent-soft); }

.thread-item .row { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; }
.thread-item .name { font-weight: 600; font-size: 14px; }
.thread-item .time { font-size: 12px; color: var(--muted); flex-shrink: 0; }

.thread-item .preview {
    font-size: 13px;
    color: var(--muted);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.badges { display: flex; gap: 6px; }
.badges:empty { display: none; }

.badge { font-size: 11px; font-weight: 600; padding: 1px 7px; border-radius: 20px; }
.badge.unread { background: var(--accent); color: #fff; }
.badge.doctor { background: var(--danger-soft); color: var(--danger); }
.badge.auto { background: var(--warn-soft); color: var(--warn); }

.notice {
    margin: 0;
    padding: 12px 16px;
    font-size: 12px;
    background: var(--warn-soft);
    color: var(--warn);
    border-top: 1px solid var(--border);
}

/* --- Conversacion -------------------------------------------------------- */

.conversation { display: flex; min-height: 0; }

.empty {
    flex: 1;
    display: grid;
    place-content: center;
    justify-items: center;
    gap: 16px;
    color: var(--muted);
}

.empty p { margin: 0; }

.thread { flex: 1; display: flex; flex-direction: column; min-height: 0; }

.thread-header {
    padding: 12px 20px;
    border-bottom: 1px solid var(--border);
    background: var(--panel);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}

.thread-header .muted { font-size: 13px; margin-left: 8px; }
.thread-actions { display: flex; align-items: center; gap: 14px; }

.toggle { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--muted); cursor: pointer; }
.toggle input { width: auto; }

.paused {
    margin: 0;
    padding: 10px 20px;
    font-size: 13px;
    background: var(--danger-soft);
    color: var(--danger);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.paused button { color: var(--danger); flex-shrink: 0; }

.messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.bubble {
    max-width: 68%;
    padding: 9px 13px;
    border-radius: var(--radius);
    background: var(--panel);
    border: 1px solid var(--border);
    white-space: pre-wrap;
    word-break: break-word;
}

.bubble.out { align-self: flex-end; background: var(--accent-soft); border-color: transparent; }
.bubble .meta { font-size: 11px; color: var(--muted); margin-top: 4px; display: block; }
.bubble .attachment { font-style: italic; color: var(--muted); font-size: 13px; }

/* --- Composer ------------------------------------------------------------ */

.composer {
    border-top: 1px solid var(--border);
    background: var(--panel);
    padding: 14px 20px 18px;
    display: grid;
    gap: 10px;
}

.ai-bar { display: flex; gap: 10px; align-items: center; }
.ai-bar button { flex-shrink: 0; }

.ai-note {
    margin: 0;
    font-size: 13px;
    padding: 9px 12px;
    border-radius: 8px;
    background: var(--bg);
    color: var(--muted);
}

.ai-note.alert { background: var(--danger-soft); color: var(--danger); font-weight: 500; }

.composer-actions { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.hint { font-size: 12px; color: var(--muted); }

/* --- Modal QR ------------------------------------------------------------ */

.modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, .5);
    display: grid;
    place-items: center;
    padding: 24px;
    z-index: 10;
}

.modal-box {
    background: var(--panel);
    border-radius: var(--radius);
    padding: 28px;
    width: min(420px, 100%);
    display: grid;
    gap: 14px;
}

.modal-box h2 { margin: 0; font-size: 18px; }
.modal-box p { margin: 0; font-size: 13px; }

.qr-content {
    display: grid;
    place-items: center;
    min-height: 220px;
    background: var(--bg);
    border-radius: 8px;
    padding: 12px;
}

.qr-content img { max-width: 100%; }

.qr-content pre {
    font-size: 10px;
    white-space: pre-wrap;
    word-break: break-all;
    margin: 0;
    color: var(--muted);
    max-height: 200px;
    overflow: auto;
}

.modal-actions { display: flex; justify-content: flex-end; gap: 10px; }

@media (max-width: 760px) {
    .app { grid-template-columns: 1fr; }
}