:root {
    --portal-bg: #f4f6f5;
    --portal-surface: #ffffff;
    --portal-surface-muted: #eef3f1;
    --portal-text: #1d2523;
    --portal-muted: #68746f;
    --portal-border: #d9e1dd;
    --portal-primary: #0b6b5c;
    --portal-primary-dark: #064d42;
    --portal-accent: #1d70b8;
    --portal-success-bg: #dff4e7;
    --portal-success-text: #176236;
    --portal-warning-bg: #fff1cf;
    --portal-warning-text: #7a5200;
    --portal-danger-bg: #ffe0dc;
    --portal-danger-text: #8f2419;
    --portal-shadow: 0 12px 28px rgba(20, 35, 31, 0.08);
    --portal-nav-bg: rgba(255, 255, 255, 0.94);
    --portal-doc-bg: #ffffff;
    --portal-doc-border: #cfd7d3;
    --portal-on-primary: #ffffff;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-portal-theme="light"]) {
        --portal-bg: #111716;
        --portal-surface: #18211f;
        --portal-surface-muted: #22302d;
        --portal-text: #edf4f1;
        --portal-muted: #a9b8b2;
        --portal-border: #354540;
        --portal-primary: #41bca8;
        --portal-primary-dark: #7bd8ca;
        --portal-accent: #7db7f0;
        --portal-success-bg: #173b28;
        --portal-success-text: #91e8b4;
        --portal-warning-bg: #473717;
        --portal-warning-text: #ffd37a;
        --portal-danger-bg: #4b201d;
        --portal-danger-text: #ffaaa1;
        --portal-shadow: 0 12px 28px rgba(0, 0, 0, 0.28);
        --portal-nav-bg: rgba(24, 33, 31, 0.94);
        --portal-doc-bg: #f8faf9;
        --portal-doc-border: #b8c4bf;
        --portal-on-primary: #09231f;
    }
}

:root[data-portal-theme="dark"] {
    --portal-bg: #111716;
    --portal-surface: #18211f;
    --portal-surface-muted: #22302d;
    --portal-text: #edf4f1;
    --portal-muted: #a9b8b2;
    --portal-border: #354540;
    --portal-primary: #41bca8;
    --portal-primary-dark: #7bd8ca;
    --portal-accent: #7db7f0;
    --portal-success-bg: #173b28;
    --portal-success-text: #91e8b4;
    --portal-warning-bg: #473717;
    --portal-warning-text: #ffd37a;
    --portal-danger-bg: #4b201d;
    --portal-danger-text: #ffaaa1;
    --portal-shadow: 0 12px 28px rgba(0, 0, 0, 0.28);
    --portal-nav-bg: rgba(24, 33, 31, 0.94);
    --portal-doc-bg: #f8faf9;
    --portal-doc-border: #b8c4bf;
    --portal-on-primary: #09231f;
}

:root[data-portal-theme="light"] {
    --portal-bg: #f4f6f5;
    --portal-surface: #ffffff;
    --portal-surface-muted: #eef3f1;
    --portal-text: #1d2523;
    --portal-muted: #68746f;
    --portal-border: #d9e1dd;
    --portal-primary: #0b6b5c;
    --portal-primary-dark: #064d42;
    --portal-accent: #1d70b8;
    --portal-success-bg: #dff4e7;
    --portal-success-text: #176236;
    --portal-warning-bg: #fff1cf;
    --portal-warning-text: #7a5200;
    --portal-danger-bg: #ffe0dc;
    --portal-danger-text: #8f2419;
    --portal-shadow: 0 12px 28px rgba(20, 35, 31, 0.08);
    --portal-nav-bg: rgba(255, 255, 255, 0.94);
    --portal-doc-bg: #ffffff;
    --portal-doc-border: #cfd7d3;
    --portal-on-primary: #ffffff;
}

* {
    box-sizing: border-box;
}

html {
    background: var(--portal-bg);
}

body.portal-body {
    margin: 0;
    min-height: 100vh;
    background: var(--portal-bg);
    color: var(--portal-text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    font-size: 16px;
    line-height: 1.45;
}

button,
input,
textarea {
    font: inherit;
}

.portal-shell {
    min-height: 100vh;
    padding: calc(18px + env(safe-area-inset-top)) 14px calc(88px + env(safe-area-inset-bottom));
}

.portal-topbar {
    display: grid;
    gap: 12px;
    max-width: 1040px;
    margin: 0 auto 16px;
}

.portal-preview-banner {
    padding: 10px 12px;
    border: 1px solid var(--portal-warning-text);
    border-radius: 8px;
    background: var(--portal-warning-bg);
    color: var(--portal-warning-text);
    font-size: 13px;
    font-weight: 800;
}

.portal-appbar,
.portal-titlebar {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
}

.portal-appbar {
    justify-content: space-between;
}

.portal-titlebar {
    justify-content: flex-start;
}

.portal-brand {
    min-width: 0;
    color: var(--portal-muted);
    font-size: 14px;
    font-weight: 900;
    letter-spacing: 0;
    text-transform: uppercase;
}

.portal-kicker {
    margin: 0 0 4px;
    color: var(--portal-muted);
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
}

.portal-topbar h1 {
    margin: 0;
    min-width: 0;
    font-size: 28px;
    line-height: 1.15;
    letter-spacing: 0;
}

.portal-topbar-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.portal-theme-toggle {
    width: 40px;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--portal-border);
    border-radius: 8px;
    background: var(--portal-surface);
    color: var(--portal-text);
    cursor: pointer;
    font-size: 18px;
    font-weight: 800;
}

.portal-theme-toggle:active {
    transform: translateY(1px);
}

.portal-logout {
    min-height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 14px;
    border: 1px solid var(--portal-border);
    border-radius: 8px;
    color: var(--portal-text);
    background: var(--portal-surface);
    text-decoration: none;
    font-size: 14px;
    font-weight: 700;
}

.portal-back-btn {
    min-height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    padding: 0 12px;
    border: 1px solid var(--portal-border);
    border-radius: 8px;
    background: var(--portal-surface);
    color: var(--portal-text);
    cursor: pointer;
    font-size: 14px;
    font-weight: 800;
}

.portal-back-btn[hidden] {
    display: none;
}

.portal-nav-item {
    position: relative;
}

.portal-nav-badge {
    position: absolute;
    top: 4px;
    right: 14%;
    min-width: 18px;
    height: 18px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 5px;
    border-radius: 999px;
    background: var(--portal-danger-text);
    color: #fff;
    font-size: 11px;
    font-weight: 900;
    line-height: 1;
}

.portal-nav-badge[hidden] {
    display: none;
}

.portal-main {
    max-width: 1040px;
    margin: 0 auto;
    min-width: 0;
}

.portal-stack {
    display: grid;
    gap: 14px;
    min-width: 0;
}

.portal-grid {
    display: grid;
    gap: 14px;
    min-width: 0;
}

.portal-card {
    background: var(--portal-surface);
    border: 1px solid var(--portal-border);
    border-radius: 8px;
    box-shadow: var(--portal-shadow);
    padding: 16px;
    min-width: 0;
}

.portal-collapse-card {
    padding: 0;
    overflow: hidden;
}

.portal-collapse-card summary {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 12px;
    min-height: 66px;
    padding: 14px 46px 14px 16px;
    cursor: pointer;
    list-style: none;
    outline: none;
}

.portal-collapse-card summary:focus-visible {
    box-shadow: inset 0 0 0 2px var(--portal-primary);
}

.portal-collapse-card summary::-webkit-details-marker {
    display: none;
}

.portal-collapse-card summary::marker {
    content: "";
}

.portal-collapse-card summary::after {
    content: "";
    position: absolute;
    top: 50%;
    right: 18px;
    width: 9px;
    height: 9px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    color: var(--portal-muted);
    transform: translateY(-60%) rotate(45deg);
    transform-origin: center;
    transition: transform 0.16s ease, color 0.16s ease;
}

.portal-collapse-card[open] summary::after {
    transform: translateY(-40%) rotate(225deg);
}

.portal-collapse-card summary strong {
    display: block;
    font-size: 18px;
}

.portal-collapse-card summary > .portal-status,
.portal-collapse-card summary > .portal-money,
.portal-collapse-card summary > .portal-event-summary {
    justify-self: end;
}

.portal-event-summary {
    min-width: 0;
    max-width: min(520px, 46vw);
    overflow: hidden;
    color: var(--portal-muted);
    font-size: 14px;
    font-weight: 700;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.portal-collapse-body {
    padding: 0 16px 16px;
    border-top: 1px solid var(--portal-border);
}

.portal-card.is-pressable {
    width: 100%;
    border: 1px solid var(--portal-border);
    color: inherit;
    text-align: left;
    cursor: pointer;
}

.portal-card.is-pressable:active {
    transform: translateY(1px);
}

.portal-dashboard-layout,
.portal-dashboard-sidebar,
.portal-dashboard-content {
    display: grid;
    gap: 14px;
    min-width: 0;
}

.portal-hero {
    display: grid;
    gap: 12px;
    background: var(--portal-surface);
    color: var(--portal-text);
    border-color: var(--portal-border);
}

.portal-hero .portal-muted,
.portal-hero .portal-kicker {
    color: var(--portal-muted);
}

.portal-hero h2 {
    margin: 0;
    font-size: 24px;
    line-height: 1.15;
    letter-spacing: 0;
}

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

.portal-section-title {
    margin: 4px 0 0;
    font-size: 18px;
    letter-spacing: 0;
}

.portal-contact-card {
    display: grid;
    gap: 10px;
}

.portal-manager {
    display: grid;
    grid-template-columns: 52px minmax(0, 1fr);
    gap: 12px;
    align-items: center;
}

.portal-manager-avatar {
    width: 52px;
    height: 52px;
    display: grid;
    place-items: center;
    overflow: hidden;
    border-radius: 50%;
    background: var(--portal-success-bg);
    color: var(--portal-success-text);
    font-weight: 900;
}

.portal-manager-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.portal-manager a,
.portal-manager strong,
.portal-manager .portal-muted,
.portal-contact-list a {
    display: block;
}

.portal-manager a,
.portal-contact-list a {
    color: var(--portal-accent);
    text-decoration: none;
    overflow-wrap: anywhere;
}

.portal-phone-row {
    display: inline-flex;
    gap: 6px;
    align-items: center;
    max-width: 100%;
}

.portal-phone-row a {
    min-width: 0;
}

.portal-copy-icon {
    width: 28px;
    height: 28px;
    display: inline-grid;
    flex: 0 0 auto;
    place-items: center;
    padding: 0;
    border: 1px solid var(--portal-border);
    border-radius: 6px;
    background: var(--portal-surface-muted);
    color: var(--portal-accent);
    cursor: pointer;
}

.portal-copy-icon:hover,
.portal-copy-icon:focus-visible {
    border-color: var(--portal-accent);
    outline: none;
}

.portal-copy-icon svg {
    width: 15px;
    height: 15px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.portal-copy-icon.is-copied {
    color: var(--portal-success-text);
    border-color: var(--portal-success-text);
    background: var(--portal-success-bg);
}

.portal-copy-label {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
}

.portal-contact-list {
    display: grid;
    gap: 5px;
    color: var(--portal-muted);
    font-size: 14px;
}

.portal-contract-row {
    display: grid;
    gap: 12px;
}

.portal-contract-summary {
    display: grid;
    gap: 12px;
}

.portal-contract-summary__head {
    display: grid;
    gap: 12px;
}

.portal-contract-summary__title,
.portal-payment-widget {
    display: grid;
    gap: 6px;
    padding: 0;
    border: 0;
    background: transparent;
    color: inherit;
    text-align: left;
    cursor: pointer;
}

.portal-contract-summary__title strong {
    font-size: 19px;
    line-height: 1.2;
}

.portal-payment-widget {
    justify-items: start;
}

.portal-contract-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
}

.portal-contract-title {
    margin: 0 0 4px;
    font-size: 18px;
    letter-spacing: 0;
}

.portal-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 6px 10px;
    color: var(--portal-muted);
    font-size: 14px;
}

.portal-money {
    white-space: nowrap;
    text-align: right;
    font-size: 18px;
    font-weight: 800;
}

.portal-contract-payment-head {
    display: flex;
    align-items: center;
    gap: 10px;
}

.portal-payment-circle {
    --payment-pct: 0;
    --payment-color: var(--portal-danger-text);
    width: 58px;
    height: 58px;
    display: grid;
    place-items: center;
    flex: 0 0 auto;
    border-radius: 50%;
    background:
        radial-gradient(circle at center, var(--portal-surface) 58%, transparent 60%),
        conic-gradient(var(--payment-color) calc(var(--payment-pct) * 1%), var(--portal-border) 0);
    color: var(--payment-color);
    font-size: 13px;
    font-weight: 900;
}

.portal-payment-circle.is-partial {
    --payment-color: var(--portal-warning-text);
}

.portal-payment-circle.is-complete {
    --payment-color: var(--portal-success-text);
}

.portal-payment-circle.is-overpaid {
    --payment-color: var(--portal-danger-text);
}

.portal-documents-inline {
    display: grid;
    gap: 8px;
}

.portal-documents-inline h3 {
    margin: 0;
    font-size: 15px;
}

.portal-mini-doc-list {
    display: grid;
    gap: 4px;
}

.portal-mini-doc {
    display: grid;
    grid-template-columns: 24px minmax(0, 1fr) auto;
    gap: 8px;
    align-items: center;
    min-height: 38px;
    padding: 8px 0;
    border: 0;
    border-bottom: 1px solid var(--portal-border);
    background: transparent;
    color: inherit;
    text-align: left;
    cursor: pointer;
}

.portal-mini-doc:last-child {
    border-bottom: 0;
}

.portal-mini-doc__title {
    min-width: 0;
    overflow-wrap: anywhere;
    color: var(--portal-accent);
    font-weight: 700;
}

.portal-mini-doc__status {
    white-space: nowrap;
    font-size: 13px;
    font-weight: 800;
}

.portal-mini-doc.is-signed .portal-mini-doc__status,
.portal-document-card.is-signed .portal-meta,
.portal-document-row--button.is-signed .portal-doc-state {
    color: var(--portal-success-text);
}

.portal-mini-doc.is-waiting .portal-mini-doc__status,
.portal-document-card.is-waiting .portal-meta,
.portal-document-row--button.is-waiting .portal-doc-state {
    color: var(--portal-danger-text);
}

.portal-mini-doc.is-archived .portal-mini-doc__status,
.portal-document-row--button.is-archived .portal-doc-state {
    color: var(--portal-muted);
}

.portal-document-row--button.is-archived {
    background: var(--portal-warning-bg);
}

.portal-status {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 800;
}

.portal-status.paid,
.portal-status.signed {
    background: var(--portal-success-bg);
    color: var(--portal-success-text);
}

.portal-status.partial,
.portal-status.pending,
.portal-status.archived {
    background: var(--portal-warning-bg);
    color: var(--portal-warning-text);
}

.portal-status.unpaid,
.portal-status.overpaid,
.portal-status.unsigned {
    background: var(--portal-danger-bg);
    color: var(--portal-danger-text);
}

.portal-change-notice {
    display: grid;
    gap: 4px;
    padding: 10px 12px;
    border: 1px solid var(--portal-warning-border);
    border-radius: 8px;
    background: var(--portal-warning-bg);
    color: var(--portal-warning-text);
    font-size: 14px;
}

.portal-change-notice strong {
    font-size: 15px;
}

.portal-action-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.portal-action-row--compact {
    gap: 6px;
}

.portal-btn {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 0 16px;
    border: 1px solid transparent;
    border-radius: 8px;
    background: var(--portal-primary);
    color: var(--portal-on-primary);
    cursor: pointer;
    text-decoration: none;
    font-weight: 800;
}

.portal-btn--compact {
    min-height: 38px;
    padding: 0 12px;
    font-size: 14px;
}

.portal-btn.secondary {
    background: var(--portal-surface);
    border-color: var(--portal-border);
    color: var(--portal-text);
}

.portal-btn:disabled {
    cursor: not-allowed;
    opacity: 0.5;
}

.portal-progress {
    height: 8px;
    overflow: hidden;
    border-radius: 999px;
    background: var(--portal-surface-muted);
}

.portal-progress span {
    display: block;
    height: 100%;
    width: 0;
    background: var(--portal-primary);
}

.portal-payment-request {
    display: grid;
    gap: 8px;
    margin: 12px 0;
    padding: 12px;
    border: 1px solid var(--portal-border);
    border-radius: 8px;
    background: var(--portal-surface-muted);
}

.portal-payment-section {
    display: grid;
    gap: 14px;
}

.portal-payment-summary {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
}

.portal-payment-summary div {
    display: grid;
    gap: 4px;
    padding: 12px;
    border: 1px solid var(--portal-border);
    border-radius: 8px;
    background: var(--portal-surface-muted);
}

.portal-payment-summary span {
    color: var(--portal-muted);
    font-size: 12px;
    font-weight: 900;
    text-transform: uppercase;
}

.portal-payment-summary strong {
    overflow-wrap: anywhere;
    font-size: 17px;
}

.portal-payment-request--locked {
    border-style: dashed;
}

.portal-payment-methods {
    display: grid;
    gap: 8px;
    margin: 4px 0;
}

.portal-payment-method {
    display: grid;
    grid-template-columns: 20px minmax(0, 1fr);
    gap: 10px;
    align-items: start;
    padding: 10px;
    border: 1px solid var(--portal-border);
    border-radius: 8px;
    background: var(--portal-surface);
    cursor: pointer;
}

.portal-payment-method input {
    margin-top: 3px;
    accent-color: var(--portal-primary);
}

.portal-payment-method strong,
.portal-payment-method .portal-muted {
    display: block;
}

.portal-payment-page {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding-bottom: 24px;
}

.portal-payment-result {
    width: min(100%, 520px);
    display: grid;
    gap: 14px;
}

.portal-payment-result h1 {
    margin: 0;
    font-size: 30px;
    line-height: 1.15;
    letter-spacing: 0;
}

.portal-payment-result__amount {
    margin: 0;
    color: var(--portal-success-text);
    font-size: 34px;
    font-weight: 900;
    line-height: 1;
}

.portal-payment-table {
    display: grid;
    margin-top: 10px;
    border: 1px solid var(--portal-border);
    border-radius: 8px;
    overflow: hidden;
}

.portal-payment-table__head,
.portal-payment-table__row {
    display: grid;
    grid-template-columns: minmax(88px, 0.9fr) minmax(0, 1fr) minmax(92px, auto);
    gap: 8px;
    align-items: center;
}

.portal-payment-table__head {
    min-height: 34px;
    padding: 7px 10px;
    background: var(--portal-surface-muted);
    color: var(--portal-muted);
    font-size: 12px;
    font-weight: 800;
    text-transform: uppercase;
}

.portal-payment-table__row {
    min-height: 48px;
    padding: 9px 10px;
    border-top: 1px solid var(--portal-border);
    font-size: 14px;
}

.portal-payment-table__date,
.portal-payment-table__method {
    color: var(--portal-muted);
}

.portal-payment-table__method {
    display: block;
    margin-top: 2px;
    font-size: 12px;
}

.portal-payment-table__amount {
    text-align: right;
    white-space: nowrap;
}

.portal-mini-status {
    display: inline-flex;
    align-items: center;
    min-height: 24px;
    padding: 2px 8px;
    border-radius: 999px;
    background: var(--portal-warning-bg);
    color: var(--portal-warning-text);
    font-size: 12px;
    font-weight: 800;
}

.portal-mini-status.paid {
    background: var(--portal-success-bg);
    color: var(--portal-success-text);
}

.portal-mini-status.cancelled {
    background: var(--portal-danger-bg);
    color: var(--portal-danger-text);
}

.portal-list {
    display: grid;
    gap: 10px;
}

.portal-document-card {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 12px;
    padding: 14px;
}

.portal-document-card__main {
    min-width: 0;
}

.portal-document-row,
.portal-event-row,
.portal-service-row {
    display: grid;
    gap: 6px;
    padding: 12px 0;
    border-bottom: 1px solid var(--portal-border);
    min-width: 0;
}

.portal-document-row--button {
    width: 100%;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    border: 0;
    border-bottom: 1px solid var(--portal-border);
    border-radius: 0;
    background: transparent;
    color: inherit;
    text-align: left;
    cursor: pointer;
    font: inherit;
}

.portal-document-row--button .portal-muted {
    display: block;
}

.portal-doc-state {
    font-size: 13px;
    font-weight: 900;
    white-space: nowrap;
}

.portal-card.portal-document-row,
.portal-card.portal-event-row {
    padding: 16px;
    border-bottom: 1px solid var(--portal-border);
}

.portal-document-title {
    display: block;
    min-width: 0;
    overflow-wrap: anywhere;
}

.portal-profile-list {
    display: grid;
    gap: 0;
    margin: 8px 0 0;
}

.portal-profile-row {
    display: grid;
    grid-template-columns: minmax(96px, 0.65fr) minmax(0, 1fr);
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid var(--portal-border);
}

.portal-profile-row:last-child {
    border-bottom: none;
}

.portal-profile-row dt {
    color: var(--portal-muted);
    font-size: 13px;
    font-weight: 800;
}

.portal-profile-row dd {
    margin: 0;
    min-width: 0;
    overflow-wrap: anywhere;
    font-weight: 700;
}

.portal-signed-panel {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    margin-top: 14px;
}

.portal-document-row:last-child,
.portal-event-row:last-child,
.portal-service-row:last-child {
    border-bottom: none;
}

.portal-service-total {
    margin-top: 4px;
    padding-top: 14px;
    border-top: 2px solid var(--portal-border);
    border-bottom: none;
    font-size: 17px;
}

.portal-doc-viewer {
    max-height: 58vh;
    overflow: auto;
    padding: 18px;
    border: 1px solid var(--portal-border);
    border-radius: 8px;
    background: var(--portal-doc-bg);
    color: #1d2523;
    font-family: Georgia, "Times New Roman", serif;
    font-size: 15px;
    line-height: 1.6;
    min-width: 0;
    overflow-wrap: anywhere;
}

.portal-doc-viewer table {
    width: 100%;
    max-width: 100%;
    border-collapse: collapse;
    table-layout: fixed;
}

.portal-doc-viewer td,
.portal-doc-viewer th {
    border: 1px solid var(--portal-doc-border);
    padding: 6px;
}

.portal-empty {
    padding: 24px 14px;
    text-align: center;
    color: var(--portal-muted);
}

.portal-bottom-nav {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 20;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    padding: 8px 10px calc(8px + env(safe-area-inset-bottom));
    background: var(--portal-nav-bg);
    border-top: 1px solid var(--portal-border);
    backdrop-filter: blur(14px);
}

.portal-nav-item {
    min-height: 48px;
    display: grid;
    justify-items: center;
    align-content: center;
    gap: 2px;
    border: 0;
    border-radius: 8px;
    background: transparent;
    color: var(--portal-muted);
    cursor: pointer;
    font-size: 12px;
    font-weight: 800;
}

.portal-nav-item.is-active {
    background: var(--portal-surface-muted);
    color: var(--portal-primary-dark);
}

.portal-nav-icon {
    font-size: 18px;
    line-height: 1;
}

.portal-loader {
    min-height: 50vh;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    color: var(--portal-muted);
}

.portal-spinner {
    width: 22px;
    height: 22px;
    border: 3px solid var(--portal-border);
    border-top-color: var(--portal-primary);
    border-radius: 50%;
    animation: portal-spin 0.8s linear infinite;
}

.portal-toast {
    position: fixed;
    left: 14px;
    right: 14px;
    bottom: calc(76px + env(safe-area-inset-bottom));
    z-index: 30;
    max-width: 520px;
    margin: 0 auto;
    padding: 12px 14px;
    border-radius: 8px;
    color: var(--portal-on-primary);
    background: var(--portal-primary-dark);
    box-shadow: var(--portal-shadow);
    font-weight: 700;
}

.portal-login-wrap {
    min-height: 100vh;
    display: grid;
    align-items: center;
    padding: 20px 14px;
}

.portal-login-card {
    width: 100%;
    max-width: 420px;
    margin: 0 auto;
}

.portal-login-help {
    margin: 12px 0 0;
    text-align: center;
    font-size: 14px;
}

.portal-login-help a {
    color: var(--portal-accent);
    text-decoration: none;
    font-weight: 800;
}

.portal-field {
    display: grid;
    gap: 6px;
    margin-bottom: 12px;
}

.portal-field label {
    font-size: 14px;
    font-weight: 800;
}

.portal-input {
    width: 100%;
    min-height: 48px;
    padding: 10px 12px;
    border: 1px solid var(--portal-border);
    border-radius: 8px;
    background: var(--portal-surface);
    color: var(--portal-text);
}

.portal-error {
    margin-bottom: 12px;
    padding: 10px 12px;
    border-radius: 8px;
    background: var(--portal-danger-bg);
    color: var(--portal-danger-text);
    font-weight: 700;
}

.portal-success-message {
    margin-bottom: 12px;
    padding: 10px 12px;
    border-radius: 8px;
    background: var(--portal-success-bg);
    color: var(--portal-success-text);
    font-weight: 800;
}

@keyframes portal-spin {
    to { transform: rotate(360deg); }
}

@media (min-width: 760px) {
    .portal-shell {
        padding-left: 24px;
        padding-right: 24px;
    }

    .portal-grid {
        grid-template-columns: minmax(0, 1fr) minmax(280px, 0.42fr);
    }

    .portal-dashboard-layout {
        grid-template-columns: minmax(240px, 0.34fr) minmax(0, 1fr);
        align-items: start;
    }

    .portal-dashboard-sidebar {
        position: sticky;
        top: 18px;
    }

    .portal-contract-summary__head {
        grid-template-columns: minmax(0, 1fr) minmax(150px, auto);
        align-items: start;
    }

    .portal-payment-widget {
        justify-items: end;
        text-align: right;
    }

    .portal-hero {
        align-items: start;
    }

    .portal-document-card {
        grid-template-columns: minmax(0, 1fr) auto;
        align-items: center;
    }

    .portal-bottom-nav {
        left: 50%;
        right: auto;
        bottom: 18px;
        width: min(520px, calc(100% - 36px));
        transform: translateX(-50%);
        border: 1px solid var(--portal-border);
        border-radius: 14px;
        padding: 8px;
        box-shadow: var(--portal-shadow);
    }
}

@media (max-width: 520px) {
    .portal-topbar-actions {
        justify-content: flex-end;
    }

    .portal-payment-table__head {
        display: none;
    }

    .portal-payment-table__row {
        grid-template-columns: minmax(0, 1fr) auto;
    }

    .portal-payment-summary {
        grid-template-columns: minmax(0, 1fr);
    }

    .portal-event-summary {
        display: none;
    }

    .portal-collapse-card summary {
        grid-template-columns: minmax(0, 1fr) auto;
    }

    .portal-payment-table__date {
        grid-column: 1 / -1;
        font-size: 12px;
    }

    .portal-mini-doc {
        grid-template-columns: 22px minmax(0, 1fr);
    }

    .portal-mini-doc__status {
        grid-column: 2;
        justify-self: start;
    }

    .portal-profile-row {
        grid-template-columns: minmax(0, 1fr);
        gap: 3px;
    }

}