:root {
    --portal-bg: #f1f5f9;
    --portal-surface: #ffffff;
    --portal-surface-soft: #f8fafc;
    --portal-text: #172033;
    --portal-muted: #64748b;
    --portal-border: #e2e8f0;
    --portal-primary: #0878d1;
    --portal-primary-dark: #075ca0;
    --portal-primary-soft: #e9f5ff;
    --portal-success: #0f8a63;
    --portal-success-soft: #e7f7f1;
    --portal-warning: #a46708;
    --portal-warning-soft: #fff5df;
    --portal-danger: #b53d4f;
    --portal-danger-soft: #fff0f2;
    --portal-sidebar: 236px;
    --portal-shadow: 0 12px 36px rgba(35, 55, 80, .08);
}

html, body { min-height: 100%; }

body {
    margin: 0;
    color: var(--portal-text);
    background: var(--portal-bg);
    font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--portal-primary-dark); }

.portal-app-shell {
    min-height: 100vh;
    display: grid;
    grid-template-columns: var(--portal-sidebar) minmax(0, 1fr);
}

.portal-sidebar {
    position: sticky;
    top: 0;
    height: 100vh;
    padding: 20px 14px;
    display: flex;
    flex-direction: column;
    background: var(--portal-surface);
    border-right: 1px solid var(--portal-border);
    z-index: 20;
}

.portal-brand {
    display: flex;
    align-items: center;
    gap: 11px;
    min-height: 44px;
    padding: 0 8px;
    color: var(--portal-text);
    text-decoration: none;
    font-weight: 700;
}

.portal-brand:hover { color: var(--portal-text); }

.portal-brand-mark {
    width: 36px;
    height: 36px;
    display: grid;
    place-items: center;
    border-radius: 11px;
    color: #fff;
    background: linear-gradient(145deg, var(--portal-primary), #13a1ea);
    box-shadow: 0 8px 18px rgba(8, 120, 209, .24);
}

.portal-brand small {
    display: block;
    color: var(--portal-muted);
    font-size: .72rem;
    font-weight: 500;
}

.portal-nav-section {
    margin: 25px 10px 8px;
    color: #94a3b8;
    font-size: .68rem;
    font-weight: 700;
    letter-spacing: .08em;
}

.portal-nav-link {
    display: flex;
    align-items: center;
    gap: 11px;
    min-height: 43px;
    margin-bottom: 4px;
    padding: 9px 11px;
    border-radius: 11px;
    color: var(--portal-muted);
    text-decoration: none;
    font-size: .92rem;
    font-weight: 500;
    transition: background-color .16s ease, color .16s ease, transform .16s ease;
}

.portal-nav-link:hover {
    color: var(--portal-primary-dark);
    background: var(--portal-primary-soft);
    transform: translateX(2px);
}

.portal-nav-link.active {
    color: var(--portal-primary-dark);
    background: var(--portal-primary-soft);
}

.portal-nav-link i { font-size: 1.05rem; }

.portal-company {
    margin-top: auto;
    padding: 13px;
    border: 1px solid var(--portal-border);
    border-radius: 12px;
    background: var(--portal-surface-soft);
}

.portal-company-label {
    color: var(--portal-muted);
    font-size: .68rem;
    font-weight: 700;
    letter-spacing: .06em;
    text-transform: uppercase;
}

.portal-company-name {
    margin-top: 4px;
    overflow: hidden;
    color: var(--portal-text);
    font-size: .82rem;
    font-weight: 600;
    text-overflow: ellipsis;
}

.portal-workspace { min-width: 0; }

.portal-topbar {
    position: sticky;
    top: 0;
    z-index: 15;
    min-height: 68px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 10px 28px;
    background: rgba(255, 255, 255, .94);
    border-bottom: 1px solid var(--portal-border);
    backdrop-filter: blur(12px);
}

.portal-search {
    position: relative;
    width: min(420px, 45vw);
}

.portal-search i {
    position: absolute;
    top: 50%;
    left: 14px;
    color: #94a3b8;
    transform: translateY(-50%);
}

.portal-search .form-control {
    height: 42px;
    padding-left: 41px;
    border-color: var(--portal-border);
    border-radius: 11px;
    background: var(--portal-surface-soft);
}

.portal-search .form-control:focus {
    background: var(--portal-surface);
    border-color: #8dc7f2;
    box-shadow: 0 0 0 .2rem rgba(8, 120, 209, .1);
}

.portal-user-menu {
    display: flex;
    align-items: center;
    gap: 11px;
}

.portal-avatar {
    width: 36px;
    height: 36px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    color: var(--portal-primary-dark);
    background: var(--portal-primary-soft);
    font-weight: 700;
}

.portal-user-name { font-size: .84rem; font-weight: 600; }
.portal-user-company { max-width: 260px; color: var(--portal-muted); font-size: .74rem; }

.portal-content {
    width: min(1420px, 100%);
    margin: 0 auto;
    padding: 28px;
}

.portal-footer { padding: 12px 28px 26px; color: var(--portal-muted); text-align: center; font-size: .75rem; }

.portal-page-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 22px;
}

.portal-eyebrow { color: var(--portal-primary-dark); font-size: .78rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; }
.portal-page-title { margin: 3px 0 5px; font-size: clamp(1.3rem, 2vw, 1.75rem); font-weight: 700; letter-spacing: -.02em; }
.portal-page-subtitle { margin: 0; color: var(--portal-muted); }

.portal-button-primary,
.portal-button-secondary {
    min-height: 42px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 9px 15px;
    border: 1px solid var(--portal-border);
    border-radius: 11px;
    text-decoration: none;
    font-weight: 600;
}

.portal-button-primary {
    color: #fff;
    border-color: var(--portal-primary);
    background: var(--portal-primary);
    box-shadow: 0 8px 18px rgba(8, 120, 209, .18);
}

.portal-button-primary:hover { color: #fff; background: var(--portal-primary-dark); }
.portal-button-secondary { color: var(--portal-text); background: var(--portal-surface); }
.portal-button-secondary:hover { color: var(--portal-primary-dark); border-color: #9fc8e7; }

.portal-metrics {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
    margin-bottom: 20px;
}

.portal-metric {
    position: relative;
    min-height: 104px;
    padding: 17px;
    overflow: hidden;
    border: 1px solid var(--portal-border);
    border-radius: 14px;
    background: var(--portal-surface);
    box-shadow: 0 6px 24px rgba(35, 55, 80, .04);
}

.portal-metric-icon {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 34px;
    height: 34px;
    display: grid;
    place-items: center;
    border-radius: 10px;
    color: var(--portal-primary-dark);
    background: var(--portal-primary-soft);
}

.portal-metric.warning .portal-metric-icon { color: var(--portal-warning); background: var(--portal-warning-soft); }
.portal-metric.success .portal-metric-icon { color: var(--portal-success); background: var(--portal-success-soft); }
.portal-metric-value { font-size: 1.7rem; font-weight: 750; letter-spacing: -.03em; }
.portal-metric-label { margin-top: 6px; color: var(--portal-muted); font-size: .82rem; }

.portal-card {
    border: 1px solid var(--portal-border);
    border-radius: 14px;
    background: var(--portal-surface);
    box-shadow: 0 7px 28px rgba(35, 55, 80, .045);
}

.portal-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 15px 17px;
    border-bottom: 1px solid var(--portal-border);
}

.portal-card-title { margin: 0; font-size: .98rem; font-weight: 700; }

.portal-filter-bar {
    display: flex;
    align-items: center;
    gap: 7px;
    padding: 13px 17px;
    overflow-x: auto;
    border-bottom: 1px solid var(--portal-border);
    scrollbar-width: thin;
}

.portal-filter {
    flex: 0 0 auto;
    padding: 7px 11px;
    border: 1px solid var(--portal-border);
    border-radius: 999px;
    color: var(--portal-muted);
    background: var(--portal-surface);
    text-decoration: none;
    font-size: .8rem;
    font-weight: 600;
}

.portal-filter:hover,
.portal-filter.active { color: var(--portal-primary-dark); border-color: #96c8ed; background: var(--portal-primary-soft); }

.portal-ticket-list { overflow: hidden; }

.portal-ticket-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 145px 150px 24px;
    align-items: center;
    gap: 14px;
    min-height: 80px;
    padding: 13px 17px;
    color: var(--portal-text);
    border-bottom: 1px solid var(--portal-border);
    text-decoration: none;
    transition: background-color .15s ease;
}

.portal-ticket-row:last-child { border-bottom: 0; }
.portal-ticket-row:hover { color: var(--portal-text); background: var(--portal-surface-soft); }
.portal-ticket-code { color: var(--portal-primary-dark); font-size: .75rem; font-weight: 700; }
.portal-ticket-subject { margin: 3px 0 5px; overflow: hidden; font-size: .91rem; font-weight: 650; text-overflow: ellipsis; white-space: nowrap; }
.portal-ticket-meta { display: flex; gap: 12px; flex-wrap: wrap; color: var(--portal-muted); font-size: .74rem; }
.portal-ticket-date { color: var(--portal-muted); font-size: .78rem; }
.portal-ticket-arrow { color: #94a3b8; }

.portal-status {
    width: fit-content;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 9px;
    border-radius: 999px;
    color: var(--portal-primary-dark);
    background: var(--portal-primary-soft);
    font-size: .74rem;
    font-weight: 700;
}

.portal-status.warning { color: var(--portal-warning); background: var(--portal-warning-soft); }
.portal-status.success { color: var(--portal-success); background: var(--portal-success-soft); }
.portal-status.danger { color: var(--portal-danger); background: var(--portal-danger-soft); }
.portal-status.neutral { color: var(--portal-muted); background: #eef2f6; }

.portal-empty { padding: 58px 20px; color: var(--portal-muted); text-align: center; }
.portal-empty i { display: block; margin-bottom: 10px; color: #9fb0c2; font-size: 2rem; }

.portal-detail-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.75fr) minmax(280px, .72fr);
    gap: 16px;
}

.portal-progress {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 7px;
    margin-bottom: 16px;
}

.portal-progress-step {
    position: relative;
    min-height: 51px;
    display: flex;
    align-items: center;
    padding: 8px 8px 8px 35px;
    border: 1px solid var(--portal-border);
    border-radius: 11px;
    color: var(--portal-muted);
    background: var(--portal-surface);
    font-size: .76rem;
    font-weight: 600;
}

.portal-progress-step::before {
    content: attr(data-step);
    position: absolute;
    left: 10px;
    width: 18px;
    height: 18px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    color: var(--portal-muted);
    background: #edf1f5;
    font-size: .66rem;
}

.portal-progress-step.done { color: var(--portal-success); border-color: #9bd5c1; background: var(--portal-success-soft); }
.portal-progress-step.done::before { color: #fff; background: var(--portal-success); }
.portal-progress-step.current { color: var(--portal-primary-dark); border-color: #83bfe9; background: var(--portal-primary-soft); }
.portal-progress-step.current::before { color: #fff; background: var(--portal-primary); }

.portal-summary {
    margin-bottom: 14px;
    padding: 14px;
    border-left: 3px solid var(--portal-primary);
    border-radius: 10px;
    color: var(--portal-text);
    background: var(--portal-primary-soft);
}

.portal-summary-label { margin-bottom: 4px; color: var(--portal-primary-dark); font-size: .76rem; font-weight: 700; text-transform: uppercase; }
.portal-description {
    max-height: min(56vh, 620px);
    overflow: auto;
    padding: 14px;
    border: 1px solid var(--portal-border);
    border-radius: 10px;
    color: #344158;
    background: #fff;
    font-size: .86rem;
    line-height: 1.55;
    overflow-wrap: anywhere;
}
.portal-description :where(p, div, span, font, b, strong, i, em, u, s, small,
                           h1, h2, h3, h4, h5, h6, li, blockquote, pre, code,
                           table, thead, tbody, tfoot, tr, th, td, caption) {
    color: #344158 !important;
    border-color: var(--portal-border) !important;
}
.portal-description :where(p, div, span, font, b, strong, i, em, u, s, small,
                           h1, h2, h3, h4, h5, h6, li, blockquote, code,
                           thead, tbody, tfoot, tr, td, caption) {
    background-color: transparent !important;
}
.portal-rich-text > :first-child { margin-top: 0; }
.portal-rich-text > :last-child { margin-bottom: 0; }
.portal-rich-text p { margin: 0 0 .75rem; }
.portal-rich-text ul,
.portal-rich-text ol { margin: 0 0 .75rem; padding-left: 1.4rem; }
.portal-rich-text table { width: 100%; margin: .75rem 0; border-collapse: collapse; background: #fff !important; }
.portal-rich-text th,
.portal-rich-text td { padding: 7px 9px; border: 1px solid var(--portal-border); vertical-align: top; }
.portal-rich-text th { background: var(--portal-surface-soft) !important; font-weight: 700; }
.portal-rich-text img { max-width: 100%; height: auto; border-radius: 6px; }
.portal-rich-text pre { max-width: 100%; overflow: auto; padding: 10px; border-radius: 7px; color: #344158; background: var(--portal-surface-soft); white-space: pre-wrap; }
.portal-rich-text blockquote { margin: .75rem 0; padding-left: 12px; border-left: 3px solid var(--portal-border); color: var(--portal-muted); }
.portal-rich-text a { overflow-wrap: anywhere; }

.portal-timeline-toolbar { display: flex; gap: 7px; padding: 13px 16px 0; overflow-x: auto; }
.portal-timeline-filter { border: 1px solid var(--portal-border); border-radius: 999px; padding: 6px 10px; color: var(--portal-muted); background: var(--portal-surface); font-size: .76rem; font-weight: 600; }
.portal-timeline-filter.active { color: var(--portal-primary-dark); border-color: #96c8ed; background: var(--portal-primary-soft); }
.portal-timeline-order { margin-left: auto; display: inline-flex; align-items: center; gap: 5px; padding: 6px 2px; color: var(--portal-primary-dark); white-space: nowrap; font-size: .74rem; font-weight: 650; }

.portal-conversation { max-height: 60vh; overflow-y: auto; padding: 6px 16px 12px; }
.portal-timeline-item { padding: 14px 0; border-bottom: 1px solid var(--portal-border); }
.portal-timeline-item:last-child { border-bottom: 0; }
.portal-timeline-item { scroll-margin-top: 86px; }
.portal-message-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 6px; }
.portal-message-author { display: flex; align-items: center; gap: 7px; font-size: .8rem; font-weight: 700; }
.portal-message-time { color: var(--portal-muted); font-size: .73rem; }
.portal-message-body { white-space: pre-wrap; color: #344158; font-size: .86rem; }
.portal-timeline-item.cliente .portal-message-author { color: var(--portal-primary-dark); }
.portal-timeline-item.sistema { margin: 8px 0; padding: 9px 11px; border: 0; border-radius: 9px; color: var(--portal-muted); background: var(--portal-surface-soft); }

.portal-composer { padding: 13px 16px; border-top: 1px solid var(--portal-border); background: var(--portal-surface-soft); }
.portal-composer textarea { min-height: 76px; resize: vertical; border-color: var(--portal-border); border-radius: 10px; }
.portal-composer-actions { display: flex; justify-content: flex-end; margin-top: 8px; }

.portal-side-card { padding: 15px; }
.portal-side-card + .portal-side-card { margin-top: 14px; }
.portal-next-step { border-color: #e6c377; background: var(--portal-warning-soft); }
.portal-next-step .portal-card-title { color: var(--portal-warning); }
.portal-fact { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 12px; padding: 9px 0; border-bottom: 1px solid var(--portal-border); font-size: .8rem; }
.portal-fact:last-child { border-bottom: 0; }
.portal-fact-label { color: var(--portal-muted); }
.portal-fact-value { max-width: 170px; text-align: right; font-weight: 600; }

.portal-people { display: flex; flex-wrap: wrap; gap: 7px; }
.portal-person { padding: 5px 8px; border-radius: 999px; color: var(--portal-muted); background: var(--portal-surface-soft); font-size: .72rem; }

.portal-attachment-panel.has-attachments {
    border-color: #89c5ee;
    box-shadow: 0 9px 28px rgba(8, 120, 209, .10);
}
.portal-attachment-heading { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.portal-attachment-count {
    min-width: 25px;
    height: 25px;
    display: inline-grid;
    place-items: center;
    padding: 0 7px;
    border-radius: 999px;
    color: #fff;
    background: var(--portal-primary);
    font-size: .72rem;
    font-weight: 750;
}
.portal-attachments { display: grid; gap: 9px; margin-top: 12px; }
.portal-attachment {
    padding: 9px 10px 8px;
    border: 1px solid var(--portal-border);
    border-radius: 9px;
    background: var(--portal-surface-soft);
    font-size: .78rem;
}
.portal-attachment-file {
    min-width: 0;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 7px;
    color: var(--portal-primary-dark);
    text-decoration: none;
    font-weight: 650;
}
.portal-attachment-file:hover { color: var(--portal-primary); }
.portal-attachment-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.portal-attachment-size { color: var(--portal-muted); white-space: nowrap; font-size: .69rem; font-weight: 500; }
.portal-attachment-trace { margin: 6px 0 0 23px; color: var(--portal-muted); font-size: .68rem; line-height: 1.35; }
.portal-attachment-trace a { color: var(--portal-muted); text-decoration: none; }
.portal-attachment-trace a:hover { color: var(--portal-primary-dark); text-decoration: underline; }

.portal-form-card { max-width: 900px; padding: 24px; }
.portal-form-card .form-label { color: #344158; font-weight: 650; }
.portal-form-card .form-control,
.portal-form-card .form-select { border-color: var(--portal-border); border-radius: 10px; }
.portal-form-card .form-control:focus,
.portal-form-card .form-select:focus { border-color: #83bfe9; box-shadow: 0 0 0 .2rem rgba(8, 120, 209, .1); }

.portal-mobile-brand { color: var(--portal-text); text-decoration: none; font-weight: 700; }

.login-container { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px; }
.login-card { width: 100%; max-width: 430px; }
.login-card.portal-card { box-shadow: var(--portal-shadow); }

@media (max-width: 1100px) {
    .portal-app-shell { grid-template-columns: 205px minmax(0, 1fr); }
    .portal-user-company { max-width: 180px; }
    .portal-content { padding: 22px; }
}

@media (max-width: 991.98px) {
    .portal-app-shell { display: block; }
    .portal-sidebar { display: none; }
    .portal-topbar { padding: 10px 16px; }
    .portal-search { width: min(380px, 52vw); }
    .portal-content { padding: 20px 16px; }
    .portal-detail-grid { display: flex; flex-direction: column; }
    .portal-detail-main,
    .portal-detail-side { display: contents; }
    .portal-summary-card { order: 1; }
    .portal-next-step { order: 2; }
    .portal-service-card { order: 3; }
    .portal-attachment-panel { order: 4; margin: 0 0 14px !important; }
    .portal-conversation-card { order: 5; }
    .portal-participants-card { order: 6; }
    .portal-progress { grid-template-columns: repeat(5, minmax(110px, 1fr)); overflow-x: auto; padding-bottom: 5px; }
}

@media (max-width: 767.98px) {
    .portal-topbar { flex-wrap: wrap; }
    .portal-search { width: 100%; order: 3; }
    .portal-user-name, .portal-user-company { display: none; }
    .portal-page-header { flex-direction: column; align-items: stretch; }
    .portal-page-header .portal-button-primary { width: 100%; }
    .portal-metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .portal-ticket-row { grid-template-columns: minmax(0, 1fr) 22px; gap: 9px; }
    .portal-ticket-row > .portal-status,
    .portal-ticket-row > .portal-ticket-date { grid-column: 1; }
    .portal-ticket-row > .portal-ticket-arrow { grid-column: 2; grid-row: 1 / span 3; align-self: center; }
    .portal-ticket-subject { white-space: normal; }
    .portal-progress { grid-template-columns: 1fr; overflow: visible; }
    .portal-progress-step:not(.done):not(.current) { display: none; }
    .portal-card-header { align-items: flex-start; }
    .portal-message-head { align-items: flex-start; flex-direction: column; gap: 3px; }
    .portal-form-card { padding: 17px; }
}

@media (max-width: 420px) {
    .portal-content { padding: 16px 10px; }
    .portal-metrics { gap: 9px; }
    .portal-metric { min-height: 94px; padding: 14px; }
    .portal-metric-value { font-size: 1.45rem; }
    .portal-ticket-row { padding: 12px; }
}

@media (prefers-reduced-motion: reduce) {
    .portal-nav-link { transition: none; }
}