:root {
    color-scheme: light;
    --background: #f4f5f7;
    --surface: #ffffff;
    --surface-muted: #f8f9fb;
    --border: #d8dde5;
    --text: #20242a;
    --text-muted: #667085;
    --accent: #315a7d;
    --accent-dark: #24445f;
    --success: #285f47;
    --success-soft: #eaf4ef;
    --danger: #9c2f2f;
    --danger-soft: #fff0f0;
    --radius: 6px;
    --shadow: 0 1px 3px rgb(16 24 40 / 8%);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-size: 15px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: var(--background);
    color: var(--text);
    line-height: 1.5;
}

.topbar {
    min-height: 58px;
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 0 24px;
    border-bottom: 1px solid var(--border);
    background: var(--surface);
}

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

.primary-nav {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-left: auto;
}

.nav-link {
    padding: 7px 10px;
    border-radius: var(--radius);
    color: var(--text-muted);
    text-decoration: none;
}

.nav-link:hover,
.nav-link:focus-visible {
    background: var(--surface-muted);
    color: var(--text);
}

.user-name {
    color: var(--text-muted);
    white-space: nowrap;
}

.logout-form,
.row-actions form {
    margin: 0;
}

.page-shell {
    width: min(1120px, calc(100% - 32px));
    margin: 28px auto;
}

.grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    margin-top: 16px;
}

.card {
    padding: 20px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: var(--shadow);
}

.narrow-card {
    width: min(680px, 100%);
    margin-right: auto;
    margin-left: auto;
}

.align-left {
    margin-left: 0;
}

.status-card {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 24px;
}

.muted-card {
    background: var(--surface-muted);
}

h1,
h2,
p {
    margin-top: 0;
}

h1 {
    margin-bottom: 8px;
    font-size: 1.65rem;
}

h2 {
    margin-bottom: 12px;
    font-size: 1.1rem;
}

.eyebrow {
    margin-bottom: 4px;
    color: var(--text-muted);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.lead {
    margin-bottom: 0;
    color: var(--text-muted);
}

.badge {
    display: inline-flex;
    padding: 4px 8px;
    border: 1px solid #bdd4c8;
    border-radius: 999px;
    background: #eaf4ef;
    color: var(--success);
    font-size: 0.8rem;
    font-weight: 700;
    white-space: nowrap;
}

.check-list {
    margin: 0;
    padding-left: 20px;
}

.check-list li + li {
    margin-top: 6px;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 12px;
    border: 1px solid var(--accent);
    border-radius: var(--radius);
    background: var(--accent);
    color: #fff;
    cursor: pointer;
    font: inherit;
    font-weight: 600;
    text-decoration: none;
}

.button:hover,
.button:focus-visible {
    background: var(--accent-dark);
}

.secondary-button {
    display: inline-flex;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    color: var(--text);
    font-weight: 600;
    text-decoration: none;
}

.link-button {
    padding: 4px;
    border: 0;
    background: transparent;
    color: var(--accent);
    cursor: pointer;
    font: inherit;
    text-decoration: underline;
    text-underline-offset: 2px;
}

.danger-link {
    color: var(--danger);
}

.flash,
.form-error {
    margin-bottom: 16px;
    padding: 11px 13px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
}

.flash-success {
    border-color: #bdd4c8;
    background: var(--success-soft);
    color: var(--success);
}

.flash-error,
.form-error {
    border-color: #e7bcbc;
    background: var(--danger-soft);
    color: var(--danger);
}

.form-intro {
    margin-bottom: 20px;
}

fieldset {
    margin: 0 0 22px;
    padding: 18px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.communication-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 18px;
}

.communication-tabs a {
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    color: var(--text);
    text-decoration: none;
}

.communication-tabs a.active {
    border-color: var(--accent);
    background: var(--accent);
    color: #fff;
}

.communication-stream {
    display: grid;
    gap: 14px;
    margin-bottom: 22px;
}

.message-header,
.request-list li,
.attachment-list li,
.message-actions,
.inline-actions {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
}

.message-content {
    margin: 18px 0;
    line-height: 1.6;
    overflow-wrap: anywhere;
}

.message-inactive {
    background: var(--background);
}

.message-subsection {
    margin-top: 16px;
    padding-top: 12px;
    border-top: 1px solid var(--border);
}

.message-subsection h3 {
    margin: 0 0 8px;
    font-size: 0.95rem;
}

.request-list,
.attachment-list {
    display: grid;
    gap: 9px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.message-actions {
    justify-content: flex-start;
    flex-wrap: wrap;
    margin-top: 16px;
}

.message-actions details form,
.compact-confirmation {
    display: grid;
    gap: 8px;
    margin-top: 8px;
}

.communication-compose {
    position: sticky;
    bottom: 12px;
}

.format-toolbar {
    display: flex;
    gap: 4px;
    padding: 6px;
    border: 1px solid var(--border);
    border-bottom: 0;
    border-radius: var(--radius) var(--radius) 0 0;
    background: var(--background);
}

.format-toolbar button {
    min-width: 34px;
    padding: 5px;
    border: 1px solid var(--border);
    background: var(--surface);
    cursor: pointer;
}

.message-editor {
    min-height: 150px;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 0 0 var(--radius) var(--radius);
    background: var(--surface);
    line-height: 1.5;
}

.message-editor[aria-invalid="true"] {
    border-color: var(--danger);
}

.editor-fallback {
    width: 100%;
}

@media (max-width: 680px) {
    .message-header,
    .request-list li,
    .attachment-list li {
        display: grid;
    }

    .communication-compose {
        position: static;
    }
}

legend {
    padding: 0 6px;
    font-weight: 700;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.field {
    margin-bottom: 16px;
}

.form-grid .field {
    margin-bottom: 0;
}

.field-wide {
    grid-column: 1 / -1;
}

label {
    display: block;
    margin-bottom: 5px;
    font-weight: 650;
}

input,
select,
textarea {
    width: 100%;
    min-height: 40px;
    padding: 8px 10px;
    border: 1px solid #b9c0cb;
    border-radius: var(--radius);
    background: #fff;
    color: var(--text);
    font: inherit;
}

input:focus,
select:focus,
textarea:focus {
    border-color: var(--accent);
    outline: 2px solid rgb(49 90 125 / 20%);
}

textarea {
    resize: vertical;
}

.project-form-actions {
    margin-top: 20px;
}

.muted-text {
    color: var(--text-muted);
    font-size: 0.88rem;
}

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

.information-copy,
.visibility-card p {
    overflow-wrap: anywhere;
}

.information-copy {
    margin-top: 20px;
}

.information-copy h3 {
    margin-bottom: 8px;
    font-size: 1rem;
}

.visibility-card p {
    margin-bottom: 0;
}

.internal-card {
    border-left: 4px solid var(--accent);
}

.participant-form {
    padding: 18px 20px;
    border-bottom: 1px solid var(--border);
}

.compact-form {
    margin-top: 4px;
}

.project-overrides {
    margin-top: 16px;
}

.danger-button {
    color: var(--danger);
}

.card-divider {
    margin: 20px 0;
    border: 0;
    border-top: 1px solid var(--border);
}

.field-help,
.field-error {
    margin: 4px 0 0;
    font-size: 0.85rem;
}

.field-help {
    color: var(--text-muted);
}

.field-error {
    color: var(--danger);
}

.form-actions,
.page-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.page-heading {
    margin-bottom: 18px;
}

.section-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin: 28px 0 12px;
}

.section-heading h2 {
    margin: 0;
}

.tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-bottom: 14px;
}

.secondary-tabs {
    margin-top: -6px;
}

.project-workitem-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 16px;
}

.project-workitem-actions h2 {
    margin: 0;
}

.tab {
    padding: 7px 11px;
    border-radius: var(--radius);
    color: var(--text-muted);
    text-decoration: none;
}

.tab.is-active,
.tab:hover {
    background: var(--surface);
    color: var(--text);
    box-shadow: var(--shadow);
}

.detail-grid {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(240px, 1fr);
    gap: 16px;
}

.metadata {
    display: grid;
    grid-template-columns: max-content 1fr;
    gap: 8px 16px;
}

.metadata dt {
    color: var(--text-muted);
    font-weight: 700;
}

.metadata dd {
    margin: 0;
}

.inline-form {
    display: flex;
    align-items: center;
    gap: 8px;
}

.inline-form select {
    width: auto;
    min-width: 180px;
}

.relationship-form {
    margin-bottom: 18px;
}

.relationship-list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.relationship-list li {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 10px 0;
    border-top: 1px solid var(--border);
}

.permission-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-bottom: 16px;
}

.table-card {
    padding: 0;
    overflow: hidden;
}

.table-scroll {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th,
td {
    padding: 12px 14px;
    border-bottom: 1px solid var(--border);
    text-align: left;
    vertical-align: middle;
}

th {
    background: var(--surface-muted);
    color: var(--text-muted);
    font-size: 0.82rem;
    letter-spacing: 0.03em;
    text-transform: uppercase;
}

tbody tr:last-child td {
    border-bottom: 0;
}

.row-actions {
    text-align: right;
    white-space: nowrap;
}

.notification-nav {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.heading-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.checkbox-row {
    display: inline-flex;
    align-items: center;
    gap: 7px;
}

.checkbox-row input[type="checkbox"] {
    width: auto;
}

.notification-badge {
    display: inline-flex;
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    background: var(--danger);
    color: #fff;
    font-size: 0.72rem;
    font-weight: 800;
}

.notification-list {
    padding: 0;
    overflow: hidden;
}

.notification-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 18px 20px;
    border-bottom: 1px solid var(--border);
}

.notification-item:last-child {
    border-bottom: 0;
}

.notification-unread {
    border-left: 4px solid var(--primary);
    background: var(--surface-muted);
}

.notification-item h2 {
    margin: 4px 0;
    font-size: 1rem;
}

.notification-item p {
    margin: 0;
}

.notification-meta {
    color: var(--text-muted);
    font-size: 0.8rem;
}

.compact-form {
    margin-top: 18px;
}

.digest-form {
    min-width: 260px;
}

.digest-form input[type="time"] {
    width: 105px;
}

.compact-checkbox {
    white-space: nowrap;
}

.status {
    display: inline-flex;
    padding: 3px 8px;
    border-radius: 999px;
    background: #eef1f5;
    color: var(--text-muted);
    font-size: 0.8rem;
    font-weight: 700;
}

.status-active {
    background: var(--success-soft);
    color: var(--success);
}

.status-inactive,
.status-locked {
    background: var(--danger-soft);
    color: var(--danger);
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

@media (max-width: 760px) {
    .topbar {
        flex-wrap: wrap;
        gap: 10px;
        padding: 12px 16px;
    }

    .primary-nav {
        order: 3;
        width: 100%;
        overflow-x: auto;
    }

    .user-name {
        margin-left: auto;
    }

    .grid {
        grid-template-columns: 1fr;
    }

    .status-card {
        flex-direction: column;
    }

    .form-grid {
        grid-template-columns: 1fr;
    }

    .field-wide {
        grid-column: auto;
    }

    .page-heading {
        align-items: flex-start;
        flex-direction: column;
    }

    .heading-actions {
        align-items: stretch;
        flex-direction: column;
        width: 100%;
    }

    .detail-grid,
    .permission-grid {
        grid-template-columns: 1fr;
    }

    .inline-form,
    .notification-item,
    .project-workitem-actions,
    .relationship-list li {
        align-items: stretch;
        flex-direction: column;
    }
}