:root {
    --background: #eef2f6;
    --surface: #ffffff;
    --surface-soft: #f8fafc;
    --border: #d7dee7;
    --text: #182230;
    --muted: #657184;

    --nav: #182536;
    --nav-hover: #26384d;

    --info: #2563eb;
    --success: #16845b;
    --warning: #d97706;
    --danger: #c73a3a;
    --scoring: #7651c9;
    --selection: #0f8b8d;

    --shadow: 0 8px 24px rgba(24, 34, 48, 0.08);
    --radius: 12px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family:
        Inter,
        "Segoe UI",
        Arial,
        sans-serif;
    background: var(--background);
    color: var(--text);
}

.application {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.main-header {
    padding: 20px 34px;
    background: var(--nav);
    color: #ffffff;
    border-bottom: 4px solid var(--info);
}

.main-header strong {
    font-size: 22px;
    letter-spacing: 0.04em;
}

.version {
    display: inline-block;
    margin-left: 12px;
    padding: 4px 8px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 999px;
    font-size: 12px;
    opacity: 0.85;
}

.main-navigation {
    display: flex;
    gap: 8px;
    padding: 12px 34px;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 2px 10px rgba(24, 34, 48, 0.05);
}

.main-navigation a,
.secondary-navigation a {
    text-decoration: none;
}

.main-navigation a {
    padding: 10px 15px;
    border-radius: 8px;
    color: #334155;
    font-weight: 600;
}

.main-navigation a:hover {
    background: #e8eef6;
    color: var(--info);
}

.main-content {
    width: min(1440px, 100%);
    margin: 0 auto;
    padding: 30px 34px 48px;
    flex: 1;
}

.page-header {
    margin-bottom: 24px;
}

.page-header h1 {
    margin: 0 0 6px;
    font-size: 30px;
}

.page-header p {
    margin: 0;
    color: var(--muted);
}

.cards {
    display: grid;
    grid-template-columns:
        repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
}

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

.card {
    position: relative;
    overflow: hidden;
    padding: 24px;
}

.card::before {
    content: "";
    position: absolute;
    inset: 0 auto 0 0;
    width: 5px;
    background: var(--info);
}

.card h2,
.panel h2 {
    margin-top: 0;
}

.card p,
.panel p {
    color: var(--muted);
}

.card-rss::before {
    background: var(--success);
}

.card-html::before {
    background: var(--warning);
}

.card-dashboard::before {
    background: var(--info);
}

.secondary-navigation {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 24px;
}

.secondary-navigation a {
    padding: 9px 13px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: #354255;
    font-weight: 600;
    box-shadow: 0 2px 6px rgba(24, 34, 48, 0.04);
}

.secondary-navigation a:hover {
    border-color: var(--info);
    color: var(--info);
}

.panel {
    position: relative;
    margin-bottom: 22px;
    padding: 24px;
    overflow: hidden;
}

.panel::before {
    content: "";
    position: absolute;
    inset: 0 0 auto;
    height: 4px;
    background: var(--info);
}

.panel-rss::before {
    background: var(--success);
}

.panel-html::before {
    background: var(--warning);
}

.panel-discovery::before {
    background: var(--info);
}

.panel-loading::before {
    background: var(--warning);
}

.panel-scoring::before {
    background: var(--scoring);
}

.panel-selection::before {
    background: var(--selection);
}

.panel-error::before {
    background: var(--danger);
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
    margin-top: 12px;
    padding: 10px 15px;
    border: 0;
    border-radius: 8px;
    background: var(--info);
    color: #ffffff;
    text-decoration: none;
    font-weight: 700;
    cursor: pointer;
}

.button:hover {
    filter: brightness(0.94);
}

.button-success {
    background: var(--success);
}

.button-warning {
    background: var(--warning);
}

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

.button-scoring {
    background: var(--scoring);
}

.button-selection {
    background: var(--selection);
}

.button-secondary {
    background: #596779;
}

.status {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 9px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
}

.status-success {
    background: #dcf5e9;
    color: #0b6845;
}

.status-warning {
    background: #fff0d6;
    color: #945006;
}

.status-error {
    background: #fde5e5;
    color: #a32222;
}

.status-info {
    background: #e2ebff;
    color: #174ca6;
}

.status-scoring {
    background: #eee7ff;
    color: #5e3caf;
}

.status-selection {
    background: #dcf4f3;
    color: #086a6c;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--surface);
}

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

th {
    background: var(--surface-soft);
    color: #465367;
    font-size: 13px;
}

tr:hover td {
    background: #f8fafc;
}

.main-footer {
    padding: 20px 34px;
    color: var(--muted);
    font-size: 13px;
    border-top: 1px solid var(--border);
    background: var(--surface);
}

@media (max-width: 760px) {
    .main-navigation {
        overflow-x: auto;
        padding-inline: 18px;
    }

    .main-content {
        padding: 24px 18px 40px;
    }

    .main-header {
        padding-inline: 18px;
    }
}

.brand {
    display: flex;
    align-items: center;
    gap: 18px;
}

.brand-logo {
    display: block;
    width: 74px;
    height: 74px;
    object-fit: contain;
    padding: 6px;
    background: rgba(255, 255, 255, 0.96);
    border-radius: 12px;
}

.brand-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 7px;
}

.brand-text strong {
    font-size: 21px;
    letter-spacing: 0.01em;
}

.brand-text .version {
    margin-left: 0;
}

@media (max-width: 600px) {
    .brand-logo {
        width: 60px;
        height: 60px;
    }

    .brand-text strong {
        font-size: 17px;
    }
}

.metric {
    margin: 8px 0 0;
    font-size: 34px;
    font-weight: 800;
    color: var(--text);
}

.dashboard-columns {
    display: grid;
    grid-template-columns:
        repeat(auto-fit, minmax(360px, 1fr));
    gap: 22px;
    margin-top: 26px;
}

.table-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.button-small {
    min-height: 32px;
    margin-top: 0;
    padding: 7px 10px;
    font-size: 12px;
}