:root {
    --background: #0b1120;
    --surface: #111a2e;
    --surface-light: #17223a;
    --border: #263552;
    --text: #eef4ff;
    --muted: #91a1bc;
    --primary: #38bdf8;
    --primary-dark: #0284c7;
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    color: var(--text);
    background:
        radial-gradient(circle at top right, #123055 0, transparent 35%),
        var(--background);
    font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
        sans-serif;
}

button,
input,
select {
    font: inherit;
}

a {
    color: inherit;
}

.topbar {
    min-height: 68px;
    padding: 14px 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    background: rgba(11, 17, 32, 0.9);
    border-bottom: 1px solid var(--border);
}

.brand {
    color: var(--primary);
    font-size: 22px;
    font-weight: 800;
    letter-spacing: 2px;
    text-decoration: none;
}

.brand-area,
.login-toolbar {
    display: flex;
    align-items: center;
    gap: 12px;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 4px;
}

.main-nav a {
    padding: 8px 11px;
    color: var(--muted);
    border-radius: 8px;
    text-decoration: none;
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--text);
    background: var(--surface-light);
}

.app-name {
    margin-left: 12px;
    color: var(--muted);
}

.user-area {
    display: flex;
    align-items: center;
    gap: 14px;
}

.user-area form {
    margin: 0;
}

.role-label {
    display: block;
    margin-top: 2px;
    color: var(--primary);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.impersonation-banner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 18px;
    padding: 10px 18px;
    color: #fef3c7;
    background: rgba(245, 158, 11, 0.18);
    border-bottom: 1px solid rgba(245, 158, 11, 0.55);
    font-size: 14px;
    font-weight: 700;
}

.impersonation-banner form,
.table-actions form {
    margin: 0;
}

.impersonation-banner button {
    padding: 6px 10px;
    color: #fff7ed;
    background: transparent;
    border: 1px solid rgba(254, 243, 199, 0.65);
    border-radius: 7px;
    cursor: pointer;
}

.logout-button {
    padding: 8px 12px;
    color: var(--text);
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
}

.language-form {
    margin: 0;
}

.language-form select {
    padding: 7px 28px 7px 9px;
    color: var(--text);
    background: var(--surface-light);
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
}

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

.container {
    width: min(1180px, calc(100% - 32px));
    margin: 32px auto;
}

.narrow-container {
    max-width: 820px;
}

.page-heading,
.panel-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

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

h1 {
    margin-bottom: 7px;
}

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

.preview-badge,
.live-badge {
    padding: 8px 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.6px;
}

.preview-badge {
    color: #fef3c7;
    background: rgba(245, 158, 11, 0.16);
    border: 1px solid rgba(245, 158, 11, 0.5);
}

.live-badge {
    color: #dcfce7;
    background: rgba(34, 197, 94, 0.16);
    border: 1px solid rgba(34, 197, 94, 0.5);
}

.stats-grid,
.money-grid {
    display: grid;
    gap: 16px;
    margin: 24px 0;
}

.stats-grid {
    grid-template-columns: repeat(4, 1fr);
}

.money-grid {
    grid-template-columns: repeat(3, 1fr);
}

.money-grid.two-columns {
    grid-template-columns: repeat(2, 1fr);
}

.stat-card,
.money-card,
.panel,
.login-card {
    background: rgba(17, 26, 46, 0.92);
    border: 1px solid var(--border);
    border-radius: 14px;
    box-shadow: 0 18px 45px rgba(0, 0, 0, 0.2);
}

.stat-card,
.money-card {
    padding: 20px;
}

.stat-card span,
.money-card span {
    display: block;
    margin-bottom: 12px;
    color: var(--muted);
}

.stat-card strong {
    font-size: 32px;
}

.money-card strong {
    font-size: 25px;
}

.money-card.profit strong {
    color: var(--success);
}

.panel {
    margin-top: 24px;
    overflow: hidden;
}

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

.panel-heading h2 {
    margin: 0;
    font-size: 18px;
}

.panel-heading span {
    color: var(--muted);
    font-size: 13px;
}

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

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

th,
td {
    padding: 14px 18px;
    text-align: left;
    white-space: nowrap;
    border-bottom: 1px solid var(--border);
}

th {
    color: var(--muted);
    font-size: 12px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.status-badge {
    padding: 5px 8px;
    color: #bae6fd;
    background: rgba(56, 189, 248, 0.13);
    border-radius: 6px;
    font-size: 12px;
    font-weight: 700;
}

.empty-state {
    padding: 40px;
    color: var(--muted);
    text-align: center;
}

.login-page {
    display: grid;
    place-items: center;
    padding: 20px;
}

.login-card {
    width: min(420px, 100%);
    padding: 32px;
}

.login-card h1 {
    margin-top: 18px;
    margin-bottom: 6px;
}

.login-toolbar {
    justify-content: space-between;
}

.login-card label {
    display: block;
    margin: 18px 0 7px;
    color: var(--muted);
    font-size: 14px;
}

.login-card input {
    width: 100%;
    padding: 12px 13px;
    color: var(--text);
    background: var(--surface-light);
    border: 1px solid var(--border);
    border-radius: 8px;
    outline: none;
}

.login-card input:focus {
    border-color: var(--primary);
}

.login-card button {
    width: 100%;
    margin-top: 22px;
    padding: 12px;
    color: white;
    background: var(--primary-dark);
    border: 0;
    border-radius: 8px;
    font-weight: 700;
    cursor: pointer;
}

.alert {
    margin: 20px 0 4px;
    padding: 12px;
    border-radius: 8px;
}

.alert-error {
    color: #fee2e2;
    background: rgba(239, 68, 68, 0.14);
    border: 1px solid rgba(239, 68, 68, 0.4);
}

.alert-success {
    color: #dcfce7;
    background: rgba(34, 197, 94, 0.14);
    border: 1px solid rgba(34, 197, 94, 0.4);
}

.primary-button {
    padding: 10px 15px;
    color: white;
    background: var(--primary-dark);
    border: 0;
    border-radius: 8px;
    font-weight: 700;
    cursor: pointer;
}

.secondary-button,
.small-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--text);
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 8px;
    text-decoration: none;
    cursor: pointer;
}

.secondary-button {
    min-height: 40px;
    padding: 9px 14px;
}

.small-button {
    padding: 7px 10px;
}

.user-tabs {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    margin-top: 24px;
}

.user-tab {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    min-height: 72px;
    padding: 16px 18px;
    color: var(--muted);
    background: rgba(17, 26, 46, 0.92);
    border: 1px solid var(--border);
    border-radius: 12px;
    text-decoration: none;
}

.user-tab:hover,
.user-tab.active {
    color: var(--text);
    border-color: var(--primary-dark);
    background: var(--surface-light);
}

.user-tab strong {
    min-width: 34px;
    padding: 6px 9px;
    color: var(--text);
    background: rgba(56, 189, 248, 0.14);
    border-radius: 999px;
    text-align: center;
}

.reseller-filter {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    margin-top: 18px;
    padding: 18px 20px;
    background: rgba(17, 26, 46, 0.92);
    border: 1px solid var(--border);
    border-radius: 12px;
}

.reseller-filter h2 {
    margin-bottom: 5px;
    font-size: 17px;
}

.reseller-filter p,
.reseller-filter form {
    margin-bottom: 0;
}

.reseller-filter select {
    width: min(420px, 100%);
    min-width: 300px;
    padding: 10px 34px 10px 12px;
    color: var(--text);
    background: var(--surface-light);
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
}

.filter-panel {
    margin-top: 18px;
    padding: 18px 20px;
    background: rgba(17, 26, 46, 0.92);
    border: 1px solid var(--border);
    border-radius: 12px;
}

.filter-heading h2 {
    margin-bottom: 5px;
    font-size: 17px;
}

.filter-heading p {
    margin-bottom: 14px;
}

.user-filter-form,
.portal-account-form {
    display: grid;
    grid-template-columns: repeat(5, minmax(130px, 1fr));
    gap: 12px;
    align-items: end;
}

.portal-auth-note {
    grid-column: 1 / -1;
    margin: 4px 0 0;
    color: var(--muted);
    font-size: 13px;
}

.portal-account-form {
    grid-template-columns: repeat(2, minmax(220px, 1fr));
    padding: 20px;
}

.user-filter-form label,
.portal-account-form label {
    display: grid;
    gap: 6px;
    color: var(--muted);
    font-size: 13px;
}

.user-filter-form input,
.user-filter-form select,
.portal-account-form input,
.portal-account-form select {
    width: 100%;
    min-height: 42px;
    padding: 9px 11px;
    color: var(--text);
    background: var(--surface-light);
    border: 1px solid var(--border);
    border-radius: 8px;
    outline: none;
}

.user-filter-form input:focus,
.user-filter-form select:focus,
.portal-account-form input:focus,
.portal-account-form select:focus {
    border-color: var(--primary);
}

.filter-actions {
    display: flex;
    gap: 8px;
    grid-column: 1 / -1;
}

.form-submit {
    align-self: end;
}

.portal-account-form small,
.table-subtext {
    display: block;
    margin-top: 4px;
    color: var(--muted);
    font-size: 11px;
}

.table-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.impersonate-button {
    color: #bae6fd;
    border-color: rgba(56, 189, 248, 0.45);
}

.customer-count-link {
    display: inline-block;
    min-width: 30px;
    padding: 4px 8px;
    color: #bae6fd;
    background: rgba(56, 189, 248, 0.13);
    border-radius: 999px;
    text-align: center;
    text-decoration: none;
}

.customer-count-link:hover {
    background: rgba(56, 189, 248, 0.25);
}

.settings-panel {
    padding: 20px;
}

.settings-section-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.settings-section-title h2,
.settings-section-title span,
.settings-note,
.panel-help,
.sync-summary {
    margin: 0;
}

.settings-section-title h2 {
    font-size: 18px;
}

.settings-section-title span,
.settings-note,
.sync-summary {
    color: var(--muted);
    font-size: 13px;
}

.settings-note {
    margin-top: 16px;
}

.sync-panel .panel-heading > div {
    min-width: 0;
}

.panel-help {
    margin-top: 5px;
}

.sync-form {
    display: grid;
    grid-template-columns: repeat(2, minmax(220px, 1fr)) auto;
    gap: 14px;
    align-items: end;
    padding: 20px;
}

.sync-form label {
    display: grid;
    gap: 6px;
    color: var(--muted);
    font-size: 13px;
}

.sync-form input {
    min-height: 42px;
    padding: 9px 11px;
    color: var(--text);
    color-scheme: dark;
    background: var(--surface-light);
    border: 1px solid var(--border);
    border-radius: 8px;
}

.sync-form button {
    min-height: 42px;
}

.sync-summary {
    padding: 0 20px 20px;
}

.cdr-filter-form {
    grid-template-columns: repeat(6, minmax(125px, 1fr));
}

.duration-total {
    font-size: 24px !important;
}

.success-text {
    color: var(--success);
}

.warning-text {
    color: var(--warning);
}

.settings-list {
    margin: 0;
}

.settings-list > div {
    display: grid;
    grid-template-columns: minmax(150px, 0.7fr) minmax(220px, 1.3fr);
    gap: 20px;
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
}

.settings-list dt {
    color: var(--muted);
}

.settings-list dd {
    margin: 0;
    overflow-wrap: anywhere;
}

.config-status {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 700;
}

.config-status.ok {
    color: #dcfce7;
    background: rgba(34, 197, 94, 0.16);
}

.config-status.missing {
    color: #fee2e2;
    background: rgba(239, 68, 68, 0.16);
}

.panel-action {
    margin-top: 20px;
}

.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 18px;
    padding: 16px;
}

.pagination a {
    color: var(--primary);
    text-decoration: none;
}

.app-footer {
    padding: 4px 20px 24px;
    color: var(--muted);
    font-size: 12px;
    text-align: center;
}

@media (max-width: 850px) {
    .topbar {
        flex-wrap: wrap;
    }

    .main-nav {
        order: 3;
        width: 100%;
        justify-content: center;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .money-grid,
    .money-grid.two-columns {
        grid-template-columns: 1fr;
    }

    .user-tabs {
        grid-template-columns: 1fr;
        gap: 9px;
    }

    .user-tab {
        min-height: 58px;
    }

    .reseller-filter {
        align-items: stretch;
        flex-direction: column;
        gap: 14px;
    }

    .reseller-filter select {
        width: 100%;
        min-width: 0;
    }

    .user-filter-form {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

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

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

    .sync-form button {
        grid-column: 1 / -1;
    }

    .cdr-filter-form {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 560px) {
    .topbar {
        padding: 12px 16px;
    }

    .app-name,
    .user-area > span {
        display: none;
    }

    .main-nav {
        justify-content: flex-start;
        overflow-x: auto;
    }

    .container {
        width: min(100% - 22px, 1180px);
        margin-top: 20px;
    }

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

    .settings-list > div {
        grid-template-columns: 1fr;
        gap: 6px;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }

    .stat-card {
        padding: 16px;
    }

    .stat-card strong {
        font-size: 27px;
    }

    .login-card {
        padding: 24px;
    }

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

    .sync-form,
    .cdr-filter-form {
        grid-template-columns: 1fr;
    }

    .sync-form button {
        grid-column: auto;
    }

    .filter-actions {
        flex-direction: column;
    }

    .filter-actions .primary-button,
    .filter-actions .secondary-button {
        width: 100%;
    }

    .impersonation-banner {
        align-items: stretch;
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }
}