* { box-sizing: border-box; }

:root {
    --bg: #0f1115;
    --panel: #171a21;
    --panel2: #1e222b;
    --text: #e4e6eb;
    --muted: #8a94a7;
    --border: #2a2f3a;
    --accent: #4f8cff;
    --accent2: #7dd3fc;
    --danger: #ef4444;
    --success: #22c55e;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    height: 100vh;
    display: grid;
    grid-template-rows: auto 1fr auto;
}

/* ===== Top bar ===== */
.topbar {
    padding: 10px 20px;
    background: var(--panel);
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.topbar h1 { margin: 0; font-size: 16px; font-weight: 600; }
.status { display: flex; gap: 6px; flex-wrap: wrap; }
.pill {
    background: var(--panel2);
    border: 1px solid var(--border);
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 11px;
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    color: var(--muted);
}
.pill.on { color: var(--success); border-color: var(--success); }
.pill.err { color: var(--danger); border-color: var(--danger); }

/* ===== Layout grid ===== */
.grid {
    display: grid;
    grid-template-columns: 280px 1fr 340px;
    gap: 1px;
    background: var(--border);
    overflow: hidden;
}
.panel {
    background: var(--panel);
    padding: 14px 16px;
    overflow-y: auto;
}
.panel h2 {
    margin: 0 0 8px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--muted);
}
.panel label {
    display: block;
    font-size: 12px;
    color: var(--muted);
    margin-bottom: 10px;
}
.panel input, .panel pre {
    width: 100%;
    background: var(--panel2);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 8px 10px;
    border-radius: 6px;
    font-size: 13px;
    margin-top: 4px;
    font-family: inherit;
}
.panel pre {
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    white-space: pre-wrap;
    max-height: 140px;
    overflow: auto;
    margin: 0 0 10px;
}
hr { border: none; border-top: 1px solid var(--border); margin: 14px 0; }

/* ===== Buttons ===== */
.btn-row { display: flex; gap: 8px; }
button {
    background: var(--panel2);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 7px 12px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px;
    flex: 1;
    transition: all 0.15s;
    font-family: inherit;
}
button:hover:not(:disabled) { border-color: var(--accent); }
button:disabled { opacity: 0.5; cursor: not-allowed; }
button.primary { background: var(--accent); border-color: var(--accent); color: white; }
button.primary:hover:not(:disabled) { filter: brightness(1.1); }
button.danger { background: transparent; border-color: var(--danger); color: var(--danger); }
button.danger:hover:not(:disabled) { background: var(--danger); color: white; }

/* Hold-to-Talk: large touch target, no text selection while holding,
   no iOS tap highlight, no scroll during press. */
#btn-talk {
    min-height: 56px;
    font-size: 15px;
    font-weight: 600;
    touch-action: none;
    user-select: none;
    -webkit-user-select: none;
    -webkit-tap-highlight-color: transparent;
}
#btn-talk.on {
    background: var(--success);
    border-color: var(--success);
    color: white;
    box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.25);
    transform: scale(0.98);
}

/* ===== Chat ===== */
.chat-panel { display: flex; flex-direction: column; }
.chat { flex: 1; overflow-y: auto; padding: 4px 0 12px; }
.bubble {
    max-width: 75%;
    padding: 9px 13px;
    border-radius: 12px;
    margin: 5px 0;
    font-size: 14px;
    line-height: 1.4;
    word-wrap: break-word;
    white-space: pre-wrap;
}
.bubble.user {
    margin-left: auto;
    background: var(--accent);
    color: white;
    border-bottom-right-radius: 4px;
}
.bubble.assistant {
    margin-right: auto;
    background: var(--panel2);
    border: 1px solid var(--border);
    border-bottom-left-radius: 4px;
}
.chat-input { display: flex; gap: 8px; margin-top: 6px; }
.chat-input input { flex: 1; }
.chat-input button { flex: 0 0 auto; padding: 8px 18px; }

/* ===== Tickets ===== */
.tickets { display: flex; flex-direction: column; gap: 6px; margin-bottom: 10px; }
.ticket-card {
    text-align: left;
    padding: 10px 12px;
    line-height: 1.5;
    font-size: 13px;
}
.ticket-card strong { color: var(--accent2); }
.ticket-card:hover { background: var(--panel2); }
.ticket-url { font-size: 12px; word-break: break-all; }
.ticket-url a { color: var(--accent2); }

/* ===== Audio / Logs ===== */
#remote-audio { width: 100%; margin-top: 10px; }
.logs {
    background: var(--panel);
    border-top: 1px solid var(--border);
    padding: 8px 16px;
    max-height: 160px;
    overflow: auto;
}
.logs h2 { margin: 0 0 4px; font-size: 10px; text-transform: uppercase; color: var(--muted); }
.logs pre { margin: 0; font-family: ui-monospace, monospace; font-size: 11px; color: var(--muted); white-space: pre-wrap; }


/* ===== Tablet: collapse right column ===== */
@media (max-width: 1100px) {
    .grid { grid-template-columns: 260px 1fr; }
    .panel:nth-of-type(3) {
        grid-column: 1 / -1;
        border-top: 1px solid var(--border);
    }
}

/* ===== Mobile: single-column scroll layout ===== */
@media (max-width: 760px) {
    body {
        height: auto;
        min-height: 100vh;
        min-height: 100dvh;
    }
    .topbar {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
        padding: 10px 12px;
    }
    .topbar h1 { font-size: 15px; }
    .status { width: 100%; }
    .pill { font-size: 10px; padding: 3px 8px; }

    .grid {
        grid-template-columns: 1fr;
        overflow: visible;
    }
    .panel {
        padding: 12px 14px;
        overflow-y: visible;
        max-height: none;
    }
    .panel + .panel { border-top: 1px solid var(--border); }
    .panel pre { max-height: 160px; }

    /* Bigger tap targets across all controls. */
    button {
        padding: 10px 12px;
        font-size: 14px;
        min-height: 44px;
    }
    .panel input {
        font-size: 16px;     /* prevents iOS Safari zoom on focus */
        padding: 10px 12px;
        min-height: 44px;
    }

    /* Conversation gets a sensible viewport-relative height. */
    .chat-panel { min-height: 60vh; }
    .chat { min-height: 240px; max-height: 55vh; }
    .bubble { max-width: 88%; font-size: 14px; }
    .chat-input { position: sticky; bottom: 0; background: var(--panel); padding-top: 6px; }

    /* Logs collapse to a slimmer drawer. */
    .logs { max-height: 110px; padding: 6px 12px; }
    .logs pre { font-size: 10px; }

    #remote-audio { height: 36px; }
}

/* ===== Very narrow phones ===== */
@media (max-width: 380px) {
    .btn-row { flex-wrap: wrap; }
    .btn-row > button { flex: 1 1 calc(50% - 4px); }
    #btn-talk { flex: 1 1 100%; }
    .topbar h1 { font-size: 14px; }
}