:root {
    --ink: #13202f;
    --muted: #687385;
    --line: #dbe4ef;
    --soft: #eef4fb;
    --panel: #ffffff;
    --nav: #101828;
    --blue: #2563eb;
    --blue-dark: #1d4ed8;
    --green: #15803d;
    --amber: #b45309;
    --red: #b42318;
    --shadow: 0 18px 45px rgba(15, 23, 42, 0.12);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--ink);
    background:
        linear-gradient(180deg, rgba(37, 99, 235, 0.09), rgba(37, 99, 235, 0) 340px),
        #f6f8fb;
}

button,
input,
select,
textarea {
    font: inherit;
}

button {
    cursor: pointer;
}

.portal-shell,
.portal-main {
    width: min(1220px, calc(100% - 32px));
    margin: 0 auto;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 76px;
    gap: 16px;
}

.brand,
.home-link {
    color: var(--ink);
    text-decoration: none;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    letter-spacing: 0;
}

.brand-mark {
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    border-radius: 8px;
    color: #fff;
    background: var(--nav);
}

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

.home-link {
    padding: 10px 14px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.72);
    font-weight: 700;
}

.button-link {
    color: var(--ink);
}

.portal-header {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 24px;
    padding: 24px 0 28px;
}

.compact-header h1 {
    max-width: 860px;
    font-size: clamp(2rem, 4vw, 3.4rem);
}

.eyebrow {
    margin: 0 0 8px;
    color: var(--blue);
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

h1,
h2,
h3,
p {
    margin-top: 0;
}

h1 {
    max-width: 760px;
    margin-bottom: 0;
    font-size: clamp(2rem, 5vw, 4.25rem);
    line-height: 1;
    letter-spacing: 0;
}

h2 {
    margin-bottom: 0;
    font-size: 1.25rem;
}

.mode-switch {
    display: inline-grid;
    grid-template-columns: 1fr 1fr;
    gap: 4px;
    padding: 4px;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: #fff;
    box-shadow: 0 8px 20px rgba(15, 23, 42, 0.08);
}

.tabbar {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin: 0 0 16px;
    padding: 6px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    box-shadow: 0 8px 20px rgba(15, 23, 42, 0.08);
}

.tab-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 40px;
    padding: 0 14px;
    border: 0;
    border-radius: 8px;
    color: var(--muted);
    background: transparent;
    font-weight: 800;
}

.tab-button.active {
    color: #fff;
    background: var(--nav);
}

.mode-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 112px;
    gap: 8px;
    padding: 10px 14px;
    border: 0;
    border-radius: 8px;
    color: var(--muted);
    background: transparent;
    font-weight: 800;
}

.mode-button.active {
    color: #fff;
    background: var(--nav);
}

.summary-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) repeat(2, minmax(0, 1fr));
    gap: 16px;
    margin-bottom: 16px;
}

.summary-panel,
.client-panel,
.invoice-panel,
.invoice-detail,
.editor-form {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--panel);
    box-shadow: var(--shadow);
}

.summary-panel {
    min-height: 128px;
    padding: 22px;
}

.summary-panel.primary {
    color: #fff;
    background: linear-gradient(135deg, #172033, #2563eb);
    border-color: transparent;
}

.summary-label {
    display: block;
    margin-bottom: 12px;
    color: var(--muted);
    font-size: 0.82rem;
    font-weight: 800;
    text-transform: uppercase;
}

.summary-panel.primary .summary-label,
.summary-panel.primary small {
    color: rgba(255, 255, 255, 0.78);
}

.summary-panel strong {
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: clamp(1.45rem, 3vw, 2.35rem);
    line-height: 1.1;
}

.summary-panel small {
    display: block;
    margin-top: 10px;
    color: var(--muted);
    overflow-wrap: anywhere;
}

.workspace {
    display: grid;
    grid-template-columns: 330px minmax(0, 1fr);
    gap: 16px;
    align-items: start;
    padding-bottom: 42px;
}

.admin-workspace,
.client-workspace {
    grid-template-columns: 340px minmax(0, 1fr);
}

.admin-main {
    padding-bottom: 44px;
}

.admin-panels {
    display: grid;
    gap: 16px;
}

.client-panel,
.invoice-panel {
    padding: 18px;
}

.client-panel {
    position: sticky;
    top: 16px;
}

.panel-heading,
.invoice-heading,
.dialog-heading,
.line-editor-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.field-label {
    display: block;
    margin: 18px 0 8px;
    color: var(--muted);
    font-size: 0.82rem;
    font-weight: 800;
}

.search-input,
.editor-form input,
.editor-form select,
.editor-form textarea,
.stack-form input,
.stack-form select,
.stack-form textarea {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 8px;
    color: var(--ink);
    background: #fff;
}

.search-input {
    height: 44px;
    padding: 0 13px;
}

.client-list,
.invoice-list {
    display: grid;
    gap: 10px;
}

.client-list {
    margin-top: 14px;
}

.client-card,
.invoice-card {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 8px;
    text-align: left;
    color: var(--ink);
    background: #fff;
}

.client-card {
    padding: 14px;
}

.client-card.active,
.invoice-card.active {
    border-color: var(--blue);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.14);
}

.client-card strong,
.invoice-card strong {
    display: block;
    margin-bottom: 4px;
}

.client-card span,
.invoice-card span {
    display: block;
    color: var(--muted);
    font-size: 0.9rem;
    overflow-wrap: anywhere;
}

.client-card-footer,
.invoice-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-top: 12px;
}

.invoice-layout {
    display: grid;
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 16px;
    margin-top: 18px;
}

.invoice-card {
    padding: 12px;
}

.invoice-detail {
    min-height: 520px;
    padding: 24px;
    box-shadow: none;
}

.invoice-top {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    padding-bottom: 22px;
    border-bottom: 1px solid var(--line);
}

.invoice-meta {
    display: grid;
    gap: 8px;
    color: var(--muted);
    font-size: 0.92rem;
}

.invoice-meta strong {
    color: var(--ink);
}

.status-pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 82px;
    min-height: 30px;
    padding: 6px 10px;
    border-radius: 999px;
    font-size: 0.76rem;
    font-weight: 900;
    text-transform: uppercase;
}

.status-paid {
    color: var(--green);
    background: #dcfce7;
}

.status-sent {
    color: var(--blue-dark);
    background: #dbeafe;
}

.status-overdue {
    color: var(--red);
    background: #fee4e2;
}

.status-draft {
    color: var(--amber);
    background: #fef3c7;
}

.invoice-table {
    width: 100%;
    margin: 24px 0;
    border-collapse: collapse;
}

.invoice-table th,
.invoice-table td {
    padding: 13px 8px;
    border-bottom: 1px solid var(--line);
    text-align: left;
    vertical-align: top;
}

.invoice-table th {
    color: var(--muted);
    font-size: 0.76rem;
    text-transform: uppercase;
}

.invoice-table .number-cell,
.totals-table .number-cell {
    text-align: right;
    white-space: nowrap;
}

.totals-table {
    width: min(360px, 100%);
    margin-left: auto;
    border-collapse: collapse;
}

.totals-table td {
    padding: 8px 0;
}

.totals-table tr:last-child td {
    padding-top: 12px;
    border-top: 2px solid var(--ink);
    font-size: 1.2rem;
    font-weight: 900;
}

.invoice-notes {
    margin-top: 24px;
    padding: 16px;
    border-radius: 8px;
    color: var(--muted);
    background: var(--soft);
}

.empty-state {
    display: grid;
    place-items: center;
    align-content: center;
    min-height: 420px;
    color: var(--muted);
    text-align: center;
}

.empty-state i {
    color: var(--blue);
    font-size: 2.5rem;
}

.empty-state h3 {
    margin: 12px 0 4px;
    color: var(--ink);
}

.action-button,
.icon-button,
.danger-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 42px;
    border: 0;
    border-radius: 8px;
    font-weight: 800;
}

.action-button {
    padding: 0 14px;
    color: #fff;
    background: var(--blue);
}

.action-button:hover {
    background: var(--blue-dark);
}

.icon-button {
    width: 42px;
    color: var(--ink);
    background: var(--soft);
}

.danger-button {
    padding: 0 14px;
    color: #fff;
    background: var(--red);
}

.danger-icon {
    color: var(--red);
}

.admin-only {
    display: none;
}

body.admin-mode .admin-only {
    display: inline-flex;
}

.editor-dialog {
    width: min(560px, calc(100% - 28px));
    padding: 0;
    border: 0;
    background: transparent;
}

.editor-dialog.wide {
    width: min(880px, calc(100% - 28px));
}

.editor-dialog::backdrop {
    background: rgba(15, 23, 42, 0.55);
}

.editor-form {
    display: grid;
    gap: 16px;
    padding: 22px;
}

.editor-form label {
    display: grid;
    gap: 8px;
    color: var(--muted);
    font-size: 0.84rem;
    font-weight: 800;
}

.editor-form input,
.editor-form select,
.stack-form input,
.stack-form select {
    height: 44px;
    padding: 0 12px;
}

.editor-form textarea,
.stack-form textarea {
    padding: 12px;
    resize: vertical;
}

.stack-form {
    display: grid;
    gap: 14px;
    margin-top: 18px;
}

.stack-form label {
    display: grid;
    gap: 8px;
    color: var(--muted);
    font-size: 0.84rem;
    font-weight: 800;
}

.checkbox-label {
    display: inline-flex !important;
    grid-template-columns: auto 1fr;
    align-items: center;
    width: fit-content;
}

.checkbox-label input {
    width: 18px;
    height: 18px;
}

.form-message {
    min-height: 24px;
    margin: 0;
    color: var(--muted);
    font-weight: 700;
}

.form-message.success {
    color: var(--green);
}

.form-message.error {
    color: var(--red);
}

.notice {
    margin-bottom: 16px;
    padding: 14px 16px;
    border-radius: 8px;
    font-weight: 800;
}

.notice.warning {
    color: #854d0e;
    background: #fef3c7;
    border: 1px solid #facc15;
}

.login-body {
    display: grid;
    place-items: center;
    padding: 24px;
}

.login-shell {
    width: min(460px, 100%);
}

.login-panel {
    padding: 28px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    box-shadow: var(--shadow);
}

.login-panel .brand {
    margin-bottom: 28px;
}

.login-panel h1 {
    margin-bottom: 12px;
    font-size: 3rem;
}

.login-copy {
    color: var(--muted);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.line-editor {
    display: grid;
    gap: 12px;
}

.line-item-row {
    display: grid;
    grid-template-columns: minmax(180px, 1fr) 92px 120px 42px;
    gap: 10px;
    margin-bottom: 10px;
}

.hour-entry-row {
    display: grid;
    grid-template-columns: 150px 100px minmax(180px, 1fr) 42px;
    gap: 10px;
    margin-bottom: 10px;
}

.hours-heading {
    margin-top: 10px;
}

.hours-heading > div {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.total-chip {
    display: inline-flex;
    align-items: center;
    min-height: 30px;
    padding: 5px 10px;
    border-radius: 999px;
    color: var(--blue-dark);
    background: #dbeafe;
    font-weight: 900;
}

.email-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 18px;
}

.hours-summary {
    margin-top: 24px;
}

.billing-details {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr);
    gap: 18px;
    margin: 22px 0 0;
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--soft);
}

.billing-details p {
    margin-bottom: 0;
    color: var(--muted);
}

.dialog-actions {
    display: flex;
    justify-content: space-between;
    gap: 12px;
}

@media (max-width: 980px) {
    .portal-header,
    .invoice-top {
        align-items: start;
        flex-direction: column;
    }

    .summary-grid,
    .workspace,
    .admin-workspace,
    .client-workspace,
    .invoice-layout {
        grid-template-columns: 1fr;
    }

    .client-panel {
        position: static;
    }
}

@media (max-width: 680px) {
    .portal-shell,
    .portal-main {
        width: min(100% - 20px, 1220px);
    }

    .topbar {
        align-items: start;
        flex-direction: column;
        padding: 14px 0;
    }

    .topbar-actions,
    .mode-switch {
        width: 100%;
    }

    .home-link,
    .mode-button {
        flex: 1;
    }

    .portal-header {
        padding-top: 10px;
    }

    h1 {
        font-size: 2.25rem;
    }

    .invoice-detail,
    .client-panel,
    .invoice-panel,
    .summary-panel {
        padding: 16px;
    }

    .invoice-table {
        display: block;
        overflow-x: auto;
    }

    .form-grid,
    .line-item-row,
    .hour-entry-row,
    .billing-details {
        grid-template-columns: 1fr;
    }

    .line-item-row .icon-button,
    .hour-entry-row .icon-button {
        width: 100%;
    }

    .dialog-actions {
        flex-direction: column-reverse;
    }

    .dialog-actions .action-button,
    .dialog-actions .danger-button {
        width: 100%;
    }
}

@media print {
    body {
        background: #fff;
    }

    .portal-shell,
    .summary-grid,
    .client-panel,
    .invoice-list,
    .invoice-heading,
    .topbar,
    .mode-switch {
        display: none !important;
    }

    .portal-main,
    .workspace,
    .invoice-layout {
        display: block;
        width: 100%;
        margin: 0;
    }

    .invoice-panel,
    .invoice-detail {
        border: 0;
        box-shadow: none;
        padding: 0;
    }
}