/* ADR-0005 Decision 11 — plain CSS, mobile-first, ~200 LoC. */

:root {
    --bg: #fafafa;
    --fg: #222;
    --muted: #666;
    --accent: #0a58ca;
    --border: #e0e0e0;
    --auto: #2e7d32;
    --flagged: #ed6c02;
    --human-takeover: #1565c0;
    --closed: #757575;
    --mismatch: #d32f2f;
    --radius: 4px;
    --font-sys: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

* { box-sizing: border-box; }

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

main { padding: 1rem; max-width: 1200px; margin: 0 auto; }

.topbar {
    background: #fff;
    border-bottom: 1px solid var(--border);
    padding: 0.5rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.topbar nav a {
    color: var(--accent);
    margin-right: 1rem;
    text-decoration: none;
    font-weight: 600;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
}
.operator-block { display: flex; align-items: center; gap: 0.75rem; }
.operator { color: var(--muted); font-size: 0.9em; }
.logout-form { margin: 0; }
.logout-btn {
    background: none;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.5rem 0.75rem;
    cursor: pointer;
    min-height: 44px;
}

@media (min-width: 768px) {
    .topbar { flex-direction: row; justify-content: space-between; }
}

h1 { font-size: 1.4em; margin: 0.5rem 0 1rem; }
h2 { font-size: 1.1em; margin: 1rem 0 0.5rem; }

.filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
    align-items: flex-end;
}
.filters label { display: flex; flex-direction: column; font-size: 0.85em; color: var(--muted); }
.filters input, .filters select {
    min-height: 44px;
    padding: 0.4rem 0.5rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: #fff;
}
.filters button {
    min-height: 44px;
    padding: 0.4rem 1rem;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
}

.conversations-table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
    font-size: 0.9em;
}
.conversations-table th, .conversations-table td {
    padding: 0.5rem;
    border-bottom: 1px solid var(--border);
    text-align: left;
    vertical-align: top;
}
.conversations-table th { background: #f4f4f4; font-weight: 600; }
.conversations-table .preview {
    max-width: 280px;
    color: var(--muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.conversations-table .empty { text-align: center; color: var(--muted); padding: 1rem; }

.badge {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    border-radius: 999px;
    font-size: 0.8em;
    color: #fff;
    background: var(--muted);
}
.badge.status-auto { background: var(--auto); }
.badge.status-flagged { background: var(--flagged); }
.badge.status-human_takeover { background: var(--human-takeover); }
.badge.status-closed { background: var(--closed); }
.badge.mismatch { background: var(--mismatch); margin-left: 0.25rem; }

.pagination { display: flex; gap: 1rem; align-items: center; margin-top: 0.5rem; }
.pagination a { min-height: 44px; display: inline-flex; align-items: center; }
.meta { color: var(--muted); margin: 0.5rem 0; font-size: 0.85em; }

/* Detail view */
.conv-header dl { display: grid; grid-template-columns: max-content 1fr; gap: 0.25rem 1rem; }
.conv-header dt { color: var(--muted); }
.conv-header dd { margin: 0; }

.operator-summary {
    background: #fff8e1;
    border-left: 3px solid #fdd835;
    padding: 0.5rem 0.75rem;
    margin: 1rem 0;
}
.conv-actions-stub .placeholder {
    color: var(--muted);
    background: #fff;
    border: 1px dashed var(--border);
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius);
}

.conv-body {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
    margin-top: 1rem;
}
@media (min-width: 900px) {
    .conv-body { grid-template-columns: 1fr 320px; }
}

.messages .message {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.5rem 0.75rem;
    margin-bottom: 0.5rem;
}
.messages .message.role-user { border-left: 3px solid var(--auto); }
.messages .message.role-bot { border-left: 3px solid var(--accent); }
.messages .message.role-operator { border-left: 3px solid var(--human-takeover); }
.messages .message.role-system { border-left: 3px solid var(--closed); }
.messages .message header {
    display: flex;
    justify-content: space-between;
    color: var(--muted);
    font-size: 0.8em;
    margin-bottom: 0.25rem;
}
.messages .message pre.content {
    white-space: pre-wrap;
    word-break: break-word;
    margin: 0;
    font-family: var(--font-sys);
}

/* Media attachments (ADR-0013 Decision 13). */
.media-attachments {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-top: 0.5rem;
}
.media-attachment {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.5rem;
    background: #fafafa;
}
.media-thumb-link { display: inline-block; }
.media-thumb {
    max-width: 200px;
    max-height: 200px;
    width: auto;
    height: auto;
    display: block;
    border-radius: var(--radius);
}
@media (max-width: 768px) {
    .media-thumb { max-width: 100%; }
}
.media-thumb-placeholder {
    border: 1px dashed var(--border);
    border-radius: var(--radius);
    padding: 0.5rem;
    background: #fff;
    font-size: 0.85em;
    color: var(--muted);
}
.media-expired-badge,
.media-failed-badge {
    display: inline-block;
    background: #eee;
    padding: 0.1rem 0.4rem;
    border-radius: var(--radius);
    color: var(--muted);
}
.media-summary {
    margin: 0.3rem 0 0;
    font-size: 0.9em;
    color: #333;
}
.media-signals {
    list-style: none;
    padding: 0;
    margin: 0.3rem 0 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem;
}
.media-signal-pill {
    display: inline-block;
    background: #eef;
    padding: 0.05rem 0.4rem;
    border-radius: var(--radius);
    font-size: 0.8em;
}
.media-signal-key { color: var(--muted); }

.events .event-list { padding-left: 1rem; }
.events .event-list li { margin-bottom: 0.5rem; }
.events .kind {
    display: inline-block;
    background: #eef;
    padding: 0.1rem 0.4rem;
    border-radius: var(--radius);
    margin-right: 0.5rem;
}
.events .actor { color: var(--muted); font-size: 0.85em; }
.events .payload {
    display: block;
    font-size: 0.8em;
    color: var(--muted);
    white-space: pre-wrap;
}

/* Actions panel (ADR-0005 Phase 2) */
.conv-actions {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.75rem 1rem;
    margin: 1rem 0;
}
.conv-actions .placeholder {
    color: var(--muted);
    margin: 0;
}
.conv-actions .action-feedback {
    min-height: 1.2em;
    margin-bottom: 0.5rem;
    color: var(--muted);
    font-size: 0.9em;
}
.conv-actions .action-feedback.success { color: var(--auto); }
.conv-actions .action-feedback.error { color: var(--mismatch); }

.action-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
    margin-bottom: 0.5rem;
}
.inline-form {
    display: inline-flex;
    gap: 0.25rem;
    align-items: center;
    margin: 0;
}
.inline-form select {
    min-height: 44px;
    padding: 0.4rem 0.5rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: #fff;
}
.conv-actions .btn-primary,
.conv-actions .btn-secondary {
    min-height: 44px;
    padding: 0.4rem 0.9rem;
    border-radius: var(--radius);
    cursor: pointer;
    border: none;
    font-size: 0.95em;
}
.conv-actions .btn-primary {
    background: var(--accent);
    color: #fff;
}
.conv-actions .btn-secondary {
    background: #fff;
    border: 1px solid var(--border);
    color: var(--fg);
}

.send-form {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-top: 0.5rem;
}
.send-form textarea {
    width: 100%;
    min-height: 88px;
    padding: 0.5rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-family: var(--font-sys);
    font-size: 1em;
}
.send-form .btn-primary { align-self: flex-end; }

.action-dialog {
    background: #fafafa;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.5rem 0.75rem;
    margin-top: 0.5rem;
}
.action-dialog summary {
    cursor: pointer;
    min-height: 44px;
    display: flex;
    align-items: center;
}
.dialog-form {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-top: 0.5rem;
}
.dialog-form label { display: flex; flex-direction: column; font-size: 0.9em; }
.dialog-form input, .dialog-form textarea {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-family: var(--font-sys);
}

.lock-indicator {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    margin: 0.5rem 0;
    color: var(--auto);
    font-size: 0.85em;
}
.lock-indicator .lock-dot { font-size: 1.1em; }
.lock-indicator.lock-lost { color: var(--mismatch); }
.lock-indicator.lock-lost .lock-dot { color: var(--mismatch); }

@media (max-width: 768px) {
    .action-row { flex-direction: column; align-items: stretch; }
    .inline-form { flex-direction: column; align-items: stretch; }
    .send-form .btn-primary { align-self: stretch; }
}

/* Login page */
.login-panel { max-width: 480px; margin: 2rem auto; }
.login-method {
    background: #fff;
    padding: 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 1rem;
}
.login-method .hint { color: var(--muted); font-size: 0.85em; }
.dev-form { display: flex; flex-direction: column; gap: 0.5rem; }
.dev-form input {
    min-height: 44px;
    padding: 0.4rem 0.5rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
}
.dev-form button {
    min-height: 44px;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
}
.error { color: var(--mismatch); }