:root {
    --page-bg: #f3f5f9;
    --surface: #ffffff;
    --surface-soft: #f8fafc;
    --surface-dark: #111827;

    --text-primary: #172033;
    --text-secondary: #667085;
    --text-muted: #98a2b3;

    --border: #e4e7ec;
    --border-strong: #d0d5dd;

    --accent: #6d5dfc;
    --accent-hover: #5b4be7;
    --accent-soft: #efedff;

    --success: #17a673;
    --success-soft: #e8f8f1;

    --warning: #f59e0b;
    --warning-soft: #fff4db;

    --danger: #dc3545;
    --danger-soft: #fdecee;

    --info: #4f7cff;
    --info-soft: #edf2ff;

    --neutral: #667085;
    --neutral-soft: #f0f2f5;

    --shadow-sm:
        0 1px 2px rgba(16, 24, 40, 0.04),
        0 1px 3px rgba(16, 24, 40, 0.08);

    --shadow-md:
        0 12px 30px rgba(16, 24, 40, 0.08);

    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 22px;
}


* {
    box-sizing: border-box;
}


html {
    min-height: 100%;
}


body {
    min-height: 100vh;
    margin: 0;

    background:
        radial-gradient(
            circle at top right,
            rgba(109, 93, 252, 0.08),
            transparent 28rem
        ),
        var(--page-bg);

    color: var(--text-primary);

    font-family:
        Inter,
        system-ui,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        sans-serif;

    -webkit-font-smoothing: antialiased;
}


button,
input,
select {
    font: inherit;
}


.app-shell {
    min-height: 100vh;
}


.app-container {
    width: min(100%, 1680px);
    margin: 0 auto;
    padding: 32px;
}


.hero-section {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 24px;

    margin-bottom: 26px;
}


.hero-eyebrow,
.section-kicker {
    margin-bottom: 8px;

    color: var(--accent);

    font-size: 12px;
    font-weight: 800;
    line-height: 1.4;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}


.hero-title {
    margin: 0;

    font-size: clamp(28px, 4vw, 46px);
    font-weight: 800;
    line-height: 1.08;
    letter-spacing: -0.04em;
}


.hero-subtitle {
    max-width: 760px;
    margin: 14px 0 0;

    color: var(--text-secondary);

    font-size: 17px;
    line-height: 1.6;
}


.hero-status {
    display: flex;
    align-items: center;
    justify-content: flex-end;

    padding-top: 4px;
}


.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;

    min-height: 38px;
    padding: 8px 14px;

    border-radius: 999px;

    font-size: 13px;
    font-weight: 700;
    white-space: nowrap;
}


.status-pill::before {
    width: 8px;
    height: 8px;

    border-radius: 50%;

    content: "";
}


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


.status-online::before {
    background: var(--success);
    box-shadow: 0 0 0 4px rgba(23, 166, 115, 0.12);
}


.status-offline {
    background: var(--danger-soft);
    color: var(--danger);
}


.status-offline::before {
    background: var(--danger);
    box-shadow: 0 0 0 4px rgba(220, 53, 69, 0.12);
}


.status-grid {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 16px;

    margin-bottom: 22px;
}


.status-card {
    min-width: 0;
    padding: 20px;

    border: 1px solid var(--border);
    border-radius: var(--radius-md);

    background: var(--surface);
    box-shadow: var(--shadow-sm);
}


.status-card-label {
    margin-bottom: 12px;

    color: var(--text-secondary);

    font-size: 13px;
    font-weight: 700;
}


.status-card-value {
    display: flex;
    align-items: center;
    gap: 9px;

    min-height: 30px;

    font-size: 18px;
    font-weight: 800;
    line-height: 1.3;
    word-break: break-word;
}


.status-card-number {
    font-size: 30px;
    font-weight: 800;
    line-height: 1;
    letter-spacing: -0.04em;
}


.status-dot {
    flex: 0 0 auto;

    width: 10px;
    height: 10px;

    border-radius: 50%;
}


.status-dot-green {
    background: var(--success);
    box-shadow: 0 0 0 5px rgba(23, 166, 115, 0.12);
}


.status-dot-red {
    background: var(--danger);
    box-shadow: 0 0 0 5px rgba(220, 53, 69, 0.12);
}


.content-card {
    margin-bottom: 22px;
    padding: 26px;

    border: 1px solid var(--border);
    border-radius: var(--radius-lg);

    background: var(--surface);
    box-shadow: var(--shadow-sm);
}


.section-heading {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 24px;

    margin-bottom: 24px;
}


.section-title {
    margin: 0;

    font-size: 24px;
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.025em;
}


.section-description {
    max-width: 760px;
    margin: 10px 0 0;

    color: var(--text-secondary);

    font-size: 14px;
    line-height: 1.6;
}


.form-label {
    margin-bottom: 8px;

    color: var(--text-primary);

    font-size: 14px;
    font-weight: 700;
}


.form-control,
.form-select,
.input-group-text {
    min-height: 46px;

    border-color: var(--border-strong);
}


.form-control,
.form-select {
    border-radius: var(--radius-sm);

    color: var(--text-primary);

    font-weight: 600;

    box-shadow: none;
}


.input-group .form-control {
    border-radius:
        var(--radius-sm)
        0
        0
        var(--radius-sm);
}


.input-group-text {
    border-radius:
        0
        var(--radius-sm)
        var(--radius-sm)
        0;

    background: var(--surface-soft);
    color: var(--text-secondary);

    font-size: 13px;
    font-weight: 700;
}


.form-control:focus,
.form-select:focus {
    border-color: var(--accent);

    box-shadow:
        0 0 0 4px rgba(109, 93, 252, 0.12);
}


.form-control:disabled {
    background: #f2f4f7;
    color: var(--text-muted);
}


.form-hint {
    margin-top: 8px;

    color: var(--text-muted);

    font-size: 12px;
    line-height: 1.5;
}


.settings-actions {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;

    margin-top: 24px;
}


.btn {
    border-radius: var(--radius-sm);

    font-weight: 750;

    transition:
        transform 0.15s ease,
        box-shadow 0.15s ease,
        background-color 0.15s ease,
        border-color 0.15s ease;
}


.btn:hover {
    transform: translateY(-1px);
}


.btn:active {
    transform: translateY(0);
}


.btn-secondary-action {
    min-height: 44px;
    padding: 10px 18px;

    border: 1px solid var(--border-strong);

    background: var(--surface);
    color: var(--text-primary);

    box-shadow: var(--shadow-sm);
}


.btn-secondary-action:hover {
    border-color: var(--accent);

    background: var(--accent-soft);
    color: var(--accent);
}


.inline-message {
    min-height: 20px;

    color: var(--text-secondary);

    font-size: 13px;
    font-weight: 650;
}


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


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


.polling-control-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 28px;

    margin-bottom: 22px;
    padding: 30px;

    border-radius: var(--radius-lg);

    background:
        linear-gradient(
            125deg,
            #161d2f,
            #222b45
        );

    color: #ffffff;
    box-shadow: var(--shadow-md);
}


.polling-control-copy {
    min-width: 0;
}


.polling-control-card .section-kicker {
    color: #a99fff;
}


.polling-control-title {
    margin: 0;

    font-size: 28px;
    font-weight: 800;
    letter-spacing: -0.03em;
}


.polling-control-description {
    max-width: 760px;
    margin: 10px 0 0;

    color: #cdd5e3;

    font-size: 14px;
    line-height: 1.6;
}


.polling-toggle-button {
    flex: 0 0 auto;

    min-width: 330px;
    min-height: 62px;
    padding: 14px 24px;

    border: 0;

    font-size: 15px;
    font-weight: 850;
    letter-spacing: 0.025em;

    box-shadow:
        0 16px 30px rgba(0, 0, 0, 0.24);
}


.polling-start {
    background: var(--accent);
    color: #ffffff;
}


.polling-start:hover {
    background: var(--accent-hover);
    color: #ffffff;
}


.polling-stop {
    background: #ef4444;
    color: #ffffff;
}


.polling-stop:hover {
    background: #dc2626;
    color: #ffffff;
}


.events-heading {
    align-items: center;
}


.events-toolbar {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 10px;
    flex-wrap: wrap;
}


.events-limit-label {
    margin: 0;

    color: var(--text-secondary);

    font-size: 13px;
    font-weight: 700;
}


.events-limit-select {
    width: 92px;
    min-height: 42px;
}


.btn-refresh {
    min-height: 42px;
    padding: 9px 16px;

    border: 1px solid var(--border-strong);

    background: var(--surface-soft);
    color: var(--text-primary);
}


.btn-refresh:hover {
    border-color: var(--accent);

    background: var(--accent-soft);
    color: var(--accent);
}


.global-message {
    margin-bottom: 18px;
    padding: 13px 15px;

    border-radius: var(--radius-sm);

    font-size: 13px;
    font-weight: 650;
}


.global-message.success {
    background: var(--success-soft);
    color: var(--success);
}


.global-message.error {
    background: var(--danger-soft);
    color: var(--danger);
}


.events-table-wrapper {
    border: 1px solid var(--border);
    border-radius: var(--radius-md);

    overflow: auto;
}


.events-table {
    min-width: 1320px;
    margin: 0;
}


.events-table thead th {
    position: sticky;
    top: 0;
    z-index: 1;

    padding: 13px 14px;

    border-bottom: 1px solid var(--border);

    background: #f8fafc;
    color: var(--text-secondary);

    font-size: 12px;
    font-weight: 800;
    line-height: 1.4;
    letter-spacing: 0.035em;
    text-transform: uppercase;
    white-space: nowrap;
}


.events-table tbody td {
    padding: 14px;

    border-bottom: 1px solid var(--border);

    color: var(--text-primary);

    font-size: 13px;
    line-height: 1.45;
    vertical-align: middle;
}


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


.events-table tbody tr {
    transition: background-color 0.25s ease;
}


.events-table tbody tr:hover {
    background: #fafbff;
}


.events-table tbody tr.row-updated {
    animation: row-highlight 1.4s ease;
}


@keyframes row-highlight {
    0% {
        background: var(--accent-soft);
    }

    100% {
        background: transparent;
    }
}


.empty-state-cell {
    padding: 46px 20px !important;

    color: var(--text-muted) !important;

    text-align: center;
}


.event-type {
    display: inline-flex;
    align-items: center;

    min-height: 28px;
    padding: 5px 9px;

    border-radius: 999px;

    background: var(--neutral-soft);
    color: var(--neutral);

    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.025em;
}


.event-type-payment {
    background: var(--accent-soft);
    color: var(--accent);
}


.event-type-test {
    background: var(--info-soft);
    color: var(--info);
}


.event-type-unknown {
    background: var(--danger-soft);
    color: var(--danger);
}


.environment-badge {
    display: inline-flex;
    align-items: center;

    padding: 5px 8px;

    border-radius: 7px;

    font-size: 11px;
    font-weight: 800;
}


.environment-production {
    background: var(--success-soft);
    color: var(--success);
}


.environment-sandbox {
    background: var(--warning-soft);
    color: #b46d00;
}


.invoice-cell {
    display: flex;
    align-items: center;
    gap: 8px;

    max-width: 240px;
}


.invoice-value {
    overflow: hidden;

    font-family:
        "Cascadia Code",
        "SFMono-Regular",
        Consolas,
        monospace;

    font-size: 12px;

    text-overflow: ellipsis;
    white-space: nowrap;
}


.copy-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;

    flex: 0 0 auto;

    width: 28px;
    height: 28px;
    padding: 0;

    border: 1px solid var(--border);
    border-radius: 7px;

    background: var(--surface);
    color: var(--text-secondary);

    font-size: 13px;
}


.copy-button:hover {
    border-color: var(--accent);

    background: var(--accent-soft);
    color: var(--accent);
}


.status-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;

    min-height: 28px;
    padding: 5px 9px;

    border-radius: 999px;

    font-size: 11px;
    font-weight: 850;
    letter-spacing: 0.025em;
    white-space: nowrap;
}


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


.status-waiting {
    background: var(--warning-soft);
    color: #b46d00;
}


.status-timeout,
.status-error {
    background: var(--danger-soft);
    color: var(--danger);
}


.status-disabled {
    background: var(--neutral-soft);
    color: var(--neutral);
}


.status-test {
    background: #f0eaff;
    color: #7047c8;
}


.status-default {
    background: var(--info-soft);
    color: var(--info);
}


.date-value {
    color: var(--text-secondary);

    font-variant-numeric: tabular-nums;
    white-space: nowrap;
}


.delay-value {
    font-weight: 800;
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
}


.error-text {
    display: block;

    max-width: 300px;
    margin-top: 5px;

    color: var(--danger);

    font-size: 11px;
    line-height: 1.4;
}


.events-footer {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;

    margin-top: 14px;

    color: var(--text-muted);

    font-size: 12px;
    font-weight: 650;
}


.toast {
    border: 0;
    border-radius: var(--radius-md);

    box-shadow: var(--shadow-md);
}


.toast-header {
    border-bottom: 1px solid var(--border);

    font-weight: 800;
}


@media (max-width: 1280px) {
    .status-grid {
        grid-template-columns:
            repeat(3, minmax(0, 1fr));
    }
}


@media (max-width: 960px) {
    .app-container {
        padding: 22px;
    }

    .hero-section,
    .section-heading,
    .polling-control-card {
        align-items: stretch;
        flex-direction: column;
    }

    .hero-status {
        justify-content: flex-start;
    }

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

    .polling-toggle-button {
        width: 100%;
        min-width: 0;
    }

    .events-toolbar {
        justify-content: flex-start;
    }
}


@media (max-width: 640px) {
    .app-container {
        padding: 16px;
    }

    .hero-title {
        font-size: 31px;
    }

    .hero-subtitle {
        font-size: 15px;
    }

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

    .content-card,
    .polling-control-card {
        padding: 20px;
        border-radius: 18px;
    }

    .polling-control-title {
        font-size: 24px;
    }

    .events-toolbar {
        display: grid;
        grid-template-columns:
            1fr
            92px;
        width: 100%;
    }

    .btn-refresh {
        grid-column: 1 / -1;
        width: 100%;
    }

    .events-limit-select {
        width: 100%;
    }

    .events-footer {
        flex-direction: column;
    }
}

/* =========================================================
   Authentication
   ========================================================= */

.hero-actions {
    display: flex;
    align-items: flex-start;
    justify-content: flex-end;
    gap: 14px;
    flex-wrap: wrap;
}

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

    min-height: 42px;
    padding: 7px 8px 7px 14px;

    border: 1px solid var(--border);
    border-radius: 14px;

    background: var(--surface);
    box-shadow: var(--shadow-sm);
}

.current-user-copy {
    display: flex;
    flex-direction: column;
    gap: 2px;

    min-width: 0;
}

.current-user-label {
    color: var(--text-muted);

    font-size: 11px;
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.current-user-name {
    max-width: 220px;

    color: var(--text-primary);

    font-size: 14px;
    font-weight: 800;
    line-height: 1.3;

    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.logout-form {
    margin: 0;
}

.logout-button {
    min-height: 34px;
    padding: 7px 12px;

    border: 1px solid var(--border-strong);
    border-radius: 9px;

    background: var(--surface-soft);
    color: var(--text-secondary);

    font-size: 13px;
    font-weight: 750;
}

.logout-button:hover {
    border-color: var(--danger);

    background: var(--danger-soft);
    color: var(--danger);
}


/* Login page */

.login-page {
    min-height: 100vh;
}

.login-shell {
    min-height: 100vh;

    display: flex;
    align-items: center;
    justify-content: center;

    padding: 32px 20px;
}

.login-container {
    width: min(100%, 480px);
}

.login-card {
    padding: 38px;

    border: 1px solid var(--border);
    border-radius: var(--radius-lg);

    background: var(--surface);
    box-shadow: var(--shadow-md);
}

.login-brand {
    margin-bottom: 30px;
}

.login-title {
    margin: 0;

    font-size: clamp(28px, 6vw, 38px);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.04em;
}

.login-subtitle {
    margin: 14px 0 0;

    color: var(--text-secondary);

    font-size: 15px;
    line-height: 1.6;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.login-form .form-control {
    min-height: 50px;
    padding: 11px 14px;
}

.login-error {
    padding: 12px 14px;

    border: 1px solid rgba(220, 53, 69, 0.24);
    border-radius: var(--radius-sm);

    background: var(--danger-soft);
    color: var(--danger);

    font-size: 13px;
    font-weight: 700;
    line-height: 1.5;
}

.login-submit-button {
    min-height: 50px;
    padding: 12px 20px;

    border: 1px solid var(--accent);
    border-radius: var(--radius-sm);

    background: var(--accent);
    color: #ffffff;

    font-size: 14px;
    font-weight: 800;
    letter-spacing: 0.04em;

    box-shadow:
        0 8px 18px rgba(109, 93, 252, 0.22);
}

.login-submit-button:hover {
    border-color: var(--accent-hover);

    background: var(--accent-hover);
    color: #ffffff;

    box-shadow:
        0 10px 22px rgba(109, 93, 252, 0.28);
}

.login-footer {
    margin-top: 24px;
    padding-top: 20px;

    border-top: 1px solid var(--border);

    color: var(--text-muted);

    font-size: 12px;
    line-height: 1.5;
    text-align: center;
}


/* Authentication responsive layout */

@media (max-width: 991px) {
    .hero-section {
        flex-direction: column;
    }

    .hero-actions {
        width: 100%;

        justify-content: flex-start;
    }
}

@media (max-width: 575px) {
    .hero-actions {
        align-items: stretch;
        flex-direction: column;
    }

    .current-user {
        width: 100%;

        justify-content: space-between;
    }

    .current-user-name {
        max-width: 180px;
    }

    .login-shell {
        align-items: flex-start;

        padding: 20px 14px;
    }

    .login-card {
        padding: 26px 20px;
    }
}