/*
 * HostBaran BGP Map - frontend stylesheet
 *
 * Simple, technical, network-engineering oriented.
 * Light theme, compact typography, centered layout.
 */

:root {
    --bg: #f7f7f5;
    --panel: #ffffff;
    --text: #1c1c1c;
    --text-muted: #5f6368;
    --border: #d8d8d2;
    --accent: #005a9e;
    --accent-soft: #eaf2fb;
    --danger: #b3261e;
    --danger-soft: #fdecea;
    --mock: #b56400;
    --mock-soft: #fff5e0;
    --shadow: 0 1px 2px rgba(0,0,0,0.04), 0 0 0 1px var(--border);
    --radius: 6px;
    --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
    --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    font-family: var(--sans);
    color: var(--text);
    background: var(--bg);
    line-height: 1.5;
    font-size: 14px;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
    max-width: 880px;
    margin: 0 auto;
    padding: 0 16px;
}

/* ---------- Header ---------- */
.site-header {
    background: var(--panel);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
}
.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    gap: 16px;
}
.brand-link {
    font-weight: 600;
    color: var(--text);
    font-size: 16px;
}
.brand-as {
    color: var(--text-muted);
    margin-left: 4px;
    font-size: 13px;
}
.top-nav { display: flex; gap: 16px; }
.top-nav a {
    color: var(--text-muted);
    font-size: 13px;
    padding: 4px 0;
    border-bottom: 2px solid transparent;
}
.top-nav a.active,
.top-nav a:hover {
    color: var(--text);
    text-decoration: none;
    border-bottom-color: var(--accent);
}

/* ---------- Main ---------- */
main.container {
    padding: 24px 16px 60px;
}

h1, h2, h3 {
    margin: 0 0 8px;
    font-weight: 600;
    line-height: 1.3;
}
h1 { font-size: 20px; }
h2 { font-size: 16px; margin-top: 20px; }
p  { margin: 0 0 8px; }
.small { font-size: 12px; color: var(--text-muted); }
.muted { color: var(--text-muted); }
.mono { font-family: var(--mono); }

/* ---------- Search form ---------- */
.search-form {
    background: var(--panel);
    padding: 24px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}
.search-form.compact {
    padding: 14px 16px;
    margin-bottom: 16px;
}
.field-label {
    display: block;
    margin-bottom: 6px;
    font-size: 13px;
    color: var(--text-muted);
}
.search-row {
    display: flex;
    gap: 8px;
    align-items: center;
}
.search-row.secondary { margin-top: 10px; }
.search-row input[type="text"],
.search-row input[type="search"] {
    flex: 1 1 auto;
    padding: 8px 10px;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-family: var(--mono);
    font-size: 14px;
    background: #fcfcfc;
}
.search-row input[type="text"]:focus,
.search-row input[type="search"]:focus {
    outline: 2px solid var(--accent-soft);
    border-color: var(--accent);
    background: #fff;
}

.btn {
    appearance: none;
    border: 1px solid var(--border);
    background: var(--panel);
    color: var(--text);
    padding: 7px 14px;
    font-size: 13px;
    border-radius: 4px;
    cursor: pointer;
    font-family: inherit;
    line-height: 1.2;
}
.btn:hover { background: #f0f0ec; }
.btn-primary {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}
.btn-primary:hover { background: #00417a; }
.btn-ghost { background: transparent; }

.checkbox {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    user-select: none;
    font-size: 13px;
    color: var(--text-muted);
}
.checkbox.inline { margin-left: 8px; }

/* ---------- Tool links ---------- */
.tool-links {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin: 14px 0;
}
.tool-links .btn { font-size: 12px; }

/* ---------- Alerts ---------- */
.alert {
    padding: 10px 14px;
    border-radius: var(--radius);
    margin: 12px 0;
    font-size: 13px;
}
.alert-error {
    background: var(--danger-soft);
    color: var(--danger);
    border: 1px solid #f3c5c2;
}

.mock-badge {
    background: var(--mock-soft);
    color: var(--mock);
    border: 1px solid #e8c98a;
    padding: 1px 6px;
    border-radius: 3px;
    font-size: 10px;
    font-style: normal;
    margin-left: 4px;
    vertical-align: middle;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ---------- Description / examples ---------- */
.description, .examples {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 20px;
    margin-top: 18px;
}
.examples ul { margin: 6px 0 0; padding-left: 18px; }
.examples li { margin: 4px 0; }
code { font-family: var(--mono); background: #f0f0ec; padding: 1px 4px; border-radius: 3px; }

/* ---------- Route meta grid ---------- */
.route-meta {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px 18px;
    margin: 14px 0;
}
.meta-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 10px 18px;
}
.meta-cell { display: flex; flex-direction: column; }
.meta-label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin-bottom: 2px;
}
.meta-value { font-size: 14px; font-family: var(--mono); word-break: break-all; }

/* ---------- Graph ---------- */
.graph-container {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 12px;
    margin: 14px 0;
    overflow: auto;
}
.graph-svg-wrap {
    width: 100%;
    display: flex;
    justify-content: center;
}
.graph-svg-wrap svg {
    max-width: 100%;
    height: auto;
}
.graph-container img { max-width: 100%; height: auto; display: block; margin: 0 auto; }

/* ---------- Path info ---------- */
.path-info {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px 18px;
    margin: 14px 0;
}
.as-path {
    font-family: var(--mono);
    font-size: 14px;
    display: flex;
    flex-wrap: wrap;
    gap: 6px 4px;
    align-items: center;
}
.as-path .arrow { color: var(--text-muted); }
.path-hop {
    padding: 2px 8px;
    background: #f4f4f0;
    border: 1px solid var(--border);
    border-radius: 4px;
}
.path-hop:hover { background: var(--accent-soft); text-decoration: none; }

/* ---------- Looking Glass / Tools form ---------- */
.page-title {
    margin-bottom: 14px;
}
.lg-form {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 20px;
    margin-bottom: 18px;
}
.lg-row {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 10px;
    align-items: center;
    margin-bottom: 10px;
}
.lg-row label {
    font-size: 13px;
    color: var(--text-muted);
}
.lg-row input[type="text"],
.lg-row select {
    padding: 6px 10px;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-family: var(--mono);
    font-size: 13px;
    background: #fcfcfc;
    width: 100%;
    max-width: 380px;
}
.lg-row button { justify-self: start; }

.lg-output {
    background: #1c1c1c;
    color: #f5f5f5;
    border-radius: var(--radius);
    padding: 14px 16px;
    overflow: auto;
}
.lg-output h2 {
    color: #f5f5f5;
    font-size: 13px;
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.lg-output pre {
    margin: 0;
    font-family: var(--mono);
    font-size: 12px;
    white-space: pre-wrap;
    word-break: break-word;
}

.asn-meta { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 20px; margin-bottom: 14px; }
.asn-name { color: var(--text-muted); font-weight: 400; font-size: 16px; }
.asn-actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* ---------- Footer ---------- */
.site-footer {
    border-top: 1px solid var(--border);
    background: var(--panel);
    padding: 14px 0;
    margin-top: 40px;
    color: var(--text-muted);
    font-size: 12px;
}
.site-footer .container { padding: 0 16px; }
.footer-line { margin: 4px 0; }
.footer-line a { color: var(--accent); }

/* ---------- Responsive ---------- */
@media (max-width: 600px) {
    .site-header .container { flex-direction: column; align-items: flex-start; padding: 10px 16px; }
    .top-nav { width: 100%; justify-content: flex-start; }
    .search-row { flex-wrap: wrap; }
    .search-row input[type="text"] { width: 100%; flex: 1 1 100%; }
    .btn { width: 100%; }
    .search-form.compact .btn { width: auto; }
    .meta-grid { grid-template-columns: 1fr 1fr; }
    .lg-row { grid-template-columns: 1fr; gap: 4px; }
    .lg-row label { margin-bottom: 2px; }
    .lg-row input, .lg-row select { max-width: 100%; }
    .graph-container { padding: 6px; overflow-x: auto; }
}