:root {
  --ab-navy: #062654;
  --ab-ink: #102a4c;
  --ab-muted: #58677b;
  --ab-border: #d8e1eb;
  --ab-border-strong: #b9c7d7;
  --ab-surface: #ffffff;
  --ab-canvas: #f5f7fa;
  --ab-active-surface: #f4f9ff;
  --ab-accent-surface: #e9f7f7;
  --ab-cyan: #08aeb8;
  --ab-blue: #1677e8;
  --ab-purple: #6c2de2;
  --ab-gradient: linear-gradient(110deg, #08c6d1 0%, #1677e8 52%, #6c2de2 100%);
  --ab-success: #18794e;
  --ab-radius: .5rem;
  --ab-shadow: 0 8px 28px rgba(23, 32, 51, .07);
}

.whatsapp-entry__meta { display:flex; gap:1rem; align-items:baseline; color:var(--ab-navy, #062654); }
.whatsapp-entry__text { white-space:pre-wrap; overflow-wrap:anywhere; margin-top:.75rem; }
.attachment-card { border-left:3px solid var(--bs-primary); padding:.75rem; background:#f7f9fc; overflow-wrap:anywhere; }
.whatsapp-thumbnail { display:block; max-width:min(100%, 320px); max-height:240px; object-fit:cover; margin:.5rem 0; border-radius:.5rem; }
.attachment-card audio, .attachment-card video { display:block; width:min(100%, 480px); max-height:300px; margin:.5rem 0; }
.voice-transcript { display:flex; align-items:flex-start; gap:.35rem; margin-top:.75rem; white-space:pre-wrap; overflow-wrap:anywhere; }
.voice-transcript audio { display:none; }
.voice-marker { flex:0 0 1.75rem; display:inline-grid; width:1.75rem; height:1.75rem; padding:.25rem; place-items:center; border:0; border-radius:50%; background:var(--ab-accent-surface); color:var(--ab-blue); cursor:pointer; }
.voice-marker:hover, .voice-marker:focus-visible { background:var(--ab-blue); color:#fff; outline:2px solid var(--ab-cyan); outline-offset:2px; }
.voice-marker svg { width:1rem; height:1rem; fill:currentColor; }
.voice-transcript--failed { color:var(--ab-muted); }
.timeline-date { position:sticky; top:0; z-index:2; padding:.6rem 0; background:var(--bs-body-bg, #fff); }
.records-view-toggle { display:inline-flex; gap:.25rem; padding:.25rem; border:1px solid var(--ab-border, #d9dee8); border-radius:.6rem; background:#fff; }
.records-view-toggle .btn { min-width:8rem; }
.conversation-group { margin-bottom:.75rem; border:1px solid var(--ab-border, #d9dee8); border-radius:.5rem; background:#fff; }
.conversation-group summary { display:grid; grid-template-columns:minmax(0, 1fr) auto auto; align-items:baseline; gap:.35rem 1.25rem; padding:.6rem .8rem; cursor:pointer; color:var(--ab-navy, #062654); }
.conversation-group summary::marker { color:var(--ab-purple, #65429b); }
.conversation-group__date { font-weight:700; }
.conversation-group__range { color:var(--ab-ink, #102a4c); font-variant-numeric:tabular-nums; white-space:nowrap; }
.conversation-group__count { color:var(--ab-muted, #667085); white-space:nowrap; }
.conversation-group__messages { padding:.3rem .8rem .45rem; border-top:1px solid var(--ab-border, #d9dee8); }
.conversation-message { display:grid; grid-template-columns:3rem 2.5rem .75rem minmax(0, 1fr); column-gap:.2rem; align-items:baseline; padding:.18rem 0; line-height:1.35; }
.conversation-message__time { color:var(--ab-muted, #58677b); font-variant-numeric:tabular-nums; }
.conversation-message__sender { color:var(--ab-navy, #062654); }
.conversation-message__separator { color:var(--ab-muted, #58677b); }
.conversation-message__content { min-width:0; overflow-wrap:anywhere; }
.conversation-message__text { white-space:pre-wrap; }
.conversation-message__attachment { margin-top:.25rem; white-space:normal; }
.conversation-message__content > .voice-transcript:first-child { margin-top:0; }
@media (max-width: 575.98px) {
 .conversation-group summary { grid-template-columns:1fr auto; }
 .conversation-group__date { grid-column:1 / -1; }
 .conversation-message { grid-template-columns:2.75rem 2.25rem .6rem minmax(0, 1fr); column-gap:.15rem; }
}
@media (max-width: 420px) { .whatsapp-entry__meta { align-items:flex-start; flex-direction:column; gap:.15rem; } }

html { font-size: 16px; min-width: 320px; }
body { min-height: 100vh; margin: 0; background: var(--ab-canvas); color: var(--ab-ink); font-family: Inter, "Segoe UI", Arial, sans-serif; overflow-wrap: anywhere; }
html.is-navigation-busy, html.is-navigation-busy * { cursor: wait !important; }
.is-navigation-pending { pointer-events: none; }
a { color: var(--ab-blue); }
.app-container { width: 100%; max-width: 1180px; }
.skip-link { position: fixed; left: 1rem; top: -5rem; z-index: 1100; padding: .7rem 1rem; background: var(--ab-ink); color: var(--ab-surface); }
.skip-link:focus { top: 1rem; }

.app-header { background: var(--ab-surface); border-bottom: 1px solid var(--ab-border); box-shadow: 0 2px 12px rgba(23,32,51,.04); }
.app-header .navbar { min-height: 68px; padding-block: .45rem; }
.navbar-brand { display: inline-flex; align-items: center; padding: 0; }
.navbar-brand picture { display: block; line-height: 0; }
.navbar-brand img { display: block; width: 215px; height: 48px; object-fit: contain; object-position: left center; }
.navbar-brand:hover { color: var(--ab-ink); }
.app-header .nav-link { min-height: 44px; display: flex; align-items: center; margin-left: .35rem; padding: .6rem .85rem !important; border-bottom: 2px solid transparent; color: #465267; font-weight: 600; }
.app-header .nav-link:hover { color: var(--ab-blue); }
.app-header .nav-link.active { color: var(--ab-blue); border-bottom-color: var(--ab-cyan); }
.navbar-toggler { min-width: 44px; min-height: 44px; border-color: var(--ab-border); }

.app-main { min-height: calc(100vh - 130px); padding-block: clamp(1.5rem, 4vw, 3rem); }
.app-footer { padding: 1.25rem 0; border-top: 1px solid var(--ab-border); background: var(--ab-surface); color: var(--ab-muted); font-size: .875rem; }
.app-footer a { color: inherit; }

.page-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 1.5rem; margin-bottom: 1.5rem; }
.page-header__eyebrow { margin: 0 0 .35rem; color: var(--ab-cyan); font-size: .75rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.page-header h1 { margin: 0; color: var(--ab-navy); font-size: clamp(1.8rem, 4vw, 2.5rem); font-weight: 750; line-height: 1.15; letter-spacing: -.035em; }
.page-header__description {
    max-width: none;
    width: 100%;
    margin: .65rem 0 0;
    color: var(--ab-muted);
    font-size: 1.025rem;
    line-height: 1.6;
}

.surface-card, .card { border: 1px solid var(--ab-border); border-radius: var(--ab-radius); background: var(--ab-surface); box-shadow: var(--ab-shadow); }
.surface-card { padding: clamp(1rem, 3vw, 1.5rem); }
.btn { min-height: 44px; padding: .55rem 1rem; border-radius: .375rem; font-weight: 650; }
.btn-primary { background: var(--ab-blue); border-color: var(--ab-blue); }
.btn-primary:hover { background: var(--ab-navy); border-color: var(--ab-navy); }
.btn-outline-primary { color: #0d65cc; border-color: #0d65cc; }
.btn-outline-primary:hover { background: var(--ab-navy); border-color: var(--ab-navy); }
.btn-success { background: var(--ab-success); border-color: var(--ab-success); }
.form-control, .form-select { min-height: 44px; border-color: #c9d2dd; border-radius: .375rem; }
textarea.form-control { min-height: 8rem; }
.form-label { color: #303b4e; font-weight: 650; }
.form-text, .text-muted { color: var(--ab-muted) !important; }
.form-control:focus, .form-select:focus, .btn:focus-visible, .nav-link:focus-visible, .accordion-button:focus-visible, a:focus-visible {
  border-color: var(--ab-cyan); outline: 2px solid transparent; box-shadow: 0 0 0 .25rem rgba(0,143,163,.2);
}
pre { max-width: 100%; white-space: pre-wrap; word-break: break-word; }
audio { width: 100%; max-width: 520px; }

.workflow { display: grid; gap: .85rem; }
.workflow .accordion-item { overflow: hidden; border: 1px solid var(--ab-border); border-radius: var(--ab-radius) !important; background: var(--ab-surface); box-shadow: 0 3px 16px rgba(23,32,51,.045); }
.workflow .accordion-button { min-height: 64px; gap: .8rem; padding: .85rem 1.1rem; color: var(--ab-ink); background: var(--ab-surface); font-size: 1rem; font-weight: 700; }
.workflow .accordion-button:not(.collapsed) { color: var(--ab-navy); background: var(--ab-active-surface); box-shadow: inset 4px 0 0 var(--ab-cyan); }
.workflow .accordion-button::after { flex-shrink: 0; }
.step-number { display: inline-grid; flex: 0 0 2rem; width: 2rem; height: 2rem; place-items: center; border: 1px solid var(--ab-border-strong); border-radius: 50%; color: #465267; font-size: .85rem; }
.accordion-button:not(.collapsed) .step-number { border-color: transparent; background: var(--ab-gradient); color: var(--ab-surface); }
.workflow .accordion-body { padding: clamp(1rem, 3vw, 1.5rem); border-top: 1px solid #e8edf3; }
.action-group { display: flex; flex-wrap: wrap; align-items: center; gap: .65rem; }
.action-divider { color: var(--ab-muted); font-size: .8rem; font-weight: 700; text-transform: uppercase; }
.file-name { max-width: 100%; word-break: break-word; }
.guidance-image { width: 100%; max-width: 400px; height: auto; }

.alert { border-width: 1px; border-radius: var(--ab-radius); }
.busy-overlay { position: fixed; inset: 0; z-index: 9999; display: none; align-items: center; justify-content: center; flex-direction: column; background: rgba(245,247,250,.9); backdrop-filter: blur(2px); }
.spinner { width: 48px; height: 48px; border: 5px solid #dbe2ea; border-top-color: var(--ab-blue); border-radius: 50%; animation: spin .9s linear infinite; }
.busy-text { margin-top: 12px; color: var(--ab-ink); font-weight: 700; }
@keyframes spin { to { transform: rotate(360deg); } }

.stage-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; margin-bottom: 1.5rem; }
.stage-card { position: relative; display: flex; min-width: 0; flex-direction: column; padding: 1.25rem; border: 1px solid var(--ab-border); border-radius: var(--ab-radius); background: var(--ab-surface); box-shadow: 0 3px 16px rgba(23,32,51,.045); }
.stage-card--current { border-top: 3px solid transparent; background: linear-gradient(var(--ab-surface), var(--ab-surface)) padding-box, var(--ab-gradient) border-box; }
.stage-card__label { color: var(--ab-cyan); font-size: .72rem; font-weight: 800; letter-spacing: .09em; text-transform: uppercase; }
.stage-card h2 { margin: .4rem 0 .65rem; font-size: 1.15rem; }
.stage-card p { color: var(--ab-muted); line-height: 1.55; }
.stage-card .btn { align-self: flex-start; margin-top: auto; }
.status-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .5rem; margin: .5rem 0 1rem; }
.status-item { padding: .65rem; background: var(--ab-canvas); color: var(--ab-muted); font-size: .84rem; }
.status-item strong { display: block; color: var(--ab-ink); }
.filter-preview { display: grid; gap: .5rem; margin-bottom: 1rem; }
.empty-state { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 1rem; margin-bottom: 1.5rem; }
.empty-state__icon { display: grid; width: 48px; height: 48px; place-items: center; border-radius: 50%; background: var(--ab-accent-surface); color: var(--ab-cyan); font-size: 1.4rem; font-weight: 800; }
.empty-state h2 { margin: 0 0 .25rem; font-size: 1.1rem; }
.empty-state p { margin: 0; color: var(--ab-muted); }

/* Future timeline primitives: compact, virtualisation-friendly blocks with no fixed widths. */
.timeline { position: relative; max-width: 820px; }
.timeline-date { position: sticky; top: .5rem; z-index: 1; margin: 1rem 0 .5rem; padding: .35rem .6rem; border-left: 3px solid var(--ab-purple); background: #f1eef9; font-size: .8rem; font-weight: 750; }
.timeline-entry { display: grid; grid-template-columns: 4.5rem minmax(0, 1fr); gap: .75rem; padding: .75rem 0; border-bottom: 1px solid var(--ab-border); }
.timeline-time { color: var(--ab-muted); font-variant-numeric: tabular-nums; }
.timeline-sender { margin-bottom: .15rem; color: var(--ab-purple); font-weight: 750; }
.attachment-card { max-width: 100%; margin-top: .5rem; padding: .65rem; border: 1px solid var(--ab-border); background: var(--ab-canvas); word-break: break-word; }

@media (max-width: 767.98px) {
  .app-header .navbar-collapse { padding: .5rem 0; border-top: 1px solid var(--ab-border); }
  .app-header .nav-link { margin: 0; padding-inline: .4rem !important; border-bottom: 0; border-left: 3px solid transparent; }
  .app-header .nav-link.active { border-left-color: var(--ab-cyan); background: var(--ab-active-surface); }
  .stage-grid { grid-template-columns: 1fr; }
  .empty-state { grid-template-columns: auto 1fr; }
  .empty-state .btn { grid-column: 1 / -1; width: 100%; }
}

@media (max-width: 575.98px) {
  .app-main { padding-block: 1.25rem; }
  .app-container { padding-inline: .85rem; }
  .page-header { flex-direction: column; gap: .85rem; }
  .page-header .btn, .action-group > .btn, .action-group > form, .action-group > form .btn { width: 100%; }
  .action-divider { width: 100%; text-align: center; }
  .workflow .accordion-button { padding-inline: .8rem; }
  .workflow .accordion-body { padding: .9rem; }
  .card-body { padding: 1rem; }
  .status-grid { grid-template-columns: 1fr; }
  .timeline-entry { grid-template-columns: 3.5rem minmax(0, 1fr); gap: .5rem; }
}

@media (max-width: 339.98px) {
  .navbar-brand img { width: 62px; height: 48px; }
  .app-container { padding-inline: .65rem; }
  .step-number { flex-basis: 1.75rem; width: 1.75rem; height: 1.75rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}

.file-selection { padding: .75rem; border-left: 3px solid var(--ab-cyan); background: var(--ab-canvas); overflow-wrap: anywhere; }
.import-diagnostics { min-width: 0; }
.upload-progress progress { width: 100%; height: 1rem; }
.diagnostic-log { max-height: 34rem; margin-top: 1rem; overflow-y: auto; overflow-x: hidden; border: 1px solid var(--ab-border); border-radius: .375rem; background: #101827; color: #edf4ff; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .875rem; }
.diagnostic-event { display: grid; grid-template-columns: 5.5rem 1.25rem minmax(0, 1fr); gap: .4rem; padding: .55rem .7rem; border-bottom: 1px solid #293449; overflow-wrap: anywhere; }
.diagnostic-event time { color: #aebbd0; font-variant-numeric: tabular-nums; }
.diagnostic-event pre { margin: .3rem 0 0; color: #cbd5e1; font: inherit; white-space: pre-wrap; word-break: break-word; }
.diagnostic-event--success .diagnostic-icon { color: #55d68b; }.diagnostic-event--warning .diagnostic-icon { color: #ffd166; }.diagnostic-event--error .diagnostic-icon { color: #ff7b86; }
#importError { white-space: pre-wrap; overflow-wrap: anywhere; }
@media (max-width: 575.98px) { .diagnostic-event { grid-template-columns: 4.8rem 1rem minmax(0, 1fr); padding-inline: .45rem; font-size: .78rem; } }
.conversation-year-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: .4rem;
}

.conversation-year {
    margin-bottom: .65rem;
    border: 1px solid var(--ab-border, #d9dee8);
    border-radius: .5rem;
    background: #fff;
}

.conversation-year__summary,
.conversation-month__summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.conversation-year__summary {
    padding: .65rem .8rem;
    color: var(--ab-navy, #062654);
}

    .conversation-year__summary > span,
    .conversation-month__summary > span {
        color: var(--ab-muted, #667085);
        font-size: .875rem;
    }

.conversation-year__content {
    padding: 0 .7rem .6rem;
}

.conversation-month {
    margin-top: .35rem;
    border-top: 1px solid var(--ab-border, #d9dee8);
}

.conversation-month__summary {
    padding: .5rem .4rem;
    color: var(--ab-navy, #062654);
}

.conversation-month__content {
    padding: 0 .25rem .25rem .75rem;
}

.collapsible-section {
    padding: 0;
    overflow: hidden;
}

.collapsible-section__summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    padding: .8rem 1rem;
    cursor: pointer;
    color: var(--ab-navy, #062654);
}

    .collapsible-section__summary strong {
        font-size: 1.1rem;
    }

    .collapsible-section__summary .page-header__eyebrow {
        display: block;
        margin-bottom: .1rem;
    }

.collapsible-section__content {
    padding: 1rem;
    border-top: 1px solid var(--ab-border, #d9dee8);
}

.collapsible-section[open] > .collapsible-section__summary {
    background: var(--ab-active-surface, #f4f9ff);
}

/* WhatsApp conversations table */
.whatsapp-conversations-table th:nth-child(4),
.whatsapp-conversations-table th:nth-child(5) {
    white-space: nowrap;
}

.whatsapp-conversations-table th:nth-child(4) {
    min-width: 80px;
}

.whatsapp-conversations-table th:nth-child(5) {
    min-width: 100px;
}