/* HostOverTime - internal product/pricing diagnostic tool.
   Design intent: this gets stared at for long stretches while comparing costs/sells across
   customers - legibility of dense tabular data is the actual job, not atmosphere. Distinctiveness
   comes from a deliberate type pairing and a disciplined, consistent diff-color language, not from
   decoration. Loads IBM Plex via Google Fonts as a progressive enhancement; the fallback stacks
   are chosen to look intentional on their own if that request is blocked. */

:root {
    color-scheme: light dark;

    --font-body: "IBM Plex Sans", ui-sans-serif, "Segoe UI", -apple-system, sans-serif;
    --font-data: "IBM Plex Mono", ui-monospace, "Cascadia Mono", Consolas, "SFMono-Regular", monospace;

    --bg: #fbfaf7;
    --surface: #ffffff;
    --surface-alt: #f2efe9;
    --border: #e1dcd0;
    --ink: #1d1b17;
    --ink-muted: #6b6558;
    --ink-faint: #96907f;

    --accent: #0f6f63;
    --accent-ink: #ffffff;
    --accent-soft: #e3f1ee;

    --diff-old: #9a3324;
    --diff-new: #0f6f63;
    --removed: #b3261e;
    --removed-soft: #fbe9e7;
    --warn-soft: #fff4da;
    --warn-ink: #7a5b00;

    --radius: 6px;
    --shadow: 0 1px 2px rgba(29, 27, 23, 0.06), 0 1px 1px rgba(29, 27, 23, 0.04);
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #17150f;
        --surface: #1f1d16;
        --surface-alt: #262319;
        --border: #3a3527;
        --ink: #ede8dc;
        --ink-muted: #a89f8b;
        --ink-faint: #7a7263;

        --accent: #4fbfae;
        --accent-ink: #0c1a17;
        --accent-soft: #1c2f2b;

        --diff-old: #d97a68;
        --diff-new: #4fbfae;
        --removed: #e5766a;
        --removed-soft: #2e1b18;
        --warn-soft: #332b12;
        --warn-ink: #e2c265;

        --shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
    }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--ink);
    margin: 0;
    line-height: 1.5;
    font-size: 15px;
}

h1, h2, h3 { font-weight: 600; letter-spacing: -0.01em; }
h1 { font-size: 1.5rem; margin: 0 0 0.25rem; }
h2 { font-size: 1rem; margin: 2rem 0 0.5rem; color: var(--ink); }
h2 .csv-link { font-weight: 400; }

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

.topbar {
    display: flex;
    align-items: center;
    gap: 1.75rem;
    padding: 0.85rem 1.5rem;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
}

.topbar .brand {
    font-family: var(--font-data);
    font-weight: 600;
    font-size: 1.05rem;
    letter-spacing: -0.01em;
    color: var(--ink);
}
.topbar .brand:hover { text-decoration: none; color: var(--accent); }

.topbar nav { display: flex; gap: 1.25rem; }
.topbar nav a { color: var(--ink-muted); font-size: 0.9rem; }
.topbar nav a:hover { color: var(--accent); text-decoration: none; }

.search-form { margin-left: auto; }
.search-form input {
    font-family: var(--font-body);
    padding: 0.4rem 0.7rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    min-width: 260px;
    background: var(--bg);
    color: var(--ink);
}

main { padding: 1.75rem 1.5rem 4rem; max-width: 1440px; margin: 0 auto; }

.breadcrumb {
    font-size: 0.85rem;
    color: var(--ink-faint);
    margin-bottom: 0.6rem;
}
.breadcrumb a { color: var(--ink-muted); }
.breadcrumb .current { color: var(--ink); font-weight: 500; }
.breadcrumb .sep { color: var(--ink-faint); margin: 0 0.15rem; }

.muted { color: var(--ink-muted); font-size: 0.9rem; }

.badge {
    display: inline-block;
    font-size: 0.72rem;
    font-family: var(--font-data);
    padding: 0.1rem 0.5rem;
    border-radius: 999px;
    margin-left: 0.5rem;
    border: 1px solid transparent;
}
.badge.active { background: var(--accent-soft); color: var(--accent); border-color: var(--accent); }
.badge.retired { background: var(--surface-alt); color: var(--ink-faint); border-color: var(--border); }

.banner {
    padding: 0.6rem 0.9rem;
    border-radius: var(--radius);
    font-size: 0.9rem;
    margin: 0.75rem 0 1.25rem;
}
.banner-removed { background: var(--removed-soft); color: var(--removed); }
.banner-warn { background: var(--warn-soft); color: var(--warn-ink); }

.entity-accordion {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    margin-bottom: 0.5rem;
    overflow: hidden;
}
.entity-accordion summary {
    cursor: pointer;
    padding: 0.55rem 0.85rem;
    font-family: var(--font-data);
    font-weight: 500;
    list-style: none;
}
.entity-accordion summary::-webkit-details-marker { display: none; }
.entity-accordion summary::before { content: "\25b8"; display: inline-block; width: 1em; color: var(--ink-faint); }
.entity-accordion[open] summary::before { content: "\25be"; }
.entity-accordion[open] summary { border-bottom: 1px solid var(--border); background: var(--surface-alt); }
.entity-accordion-body { padding: 0.75rem 0.85rem; }
.entity-accordion-body table { margin-top: 0; }
.entity-accordion-body a { display: inline-block; margin-top: 0.5rem; font-size: 0.9rem; }
.entity-accordion-body h4 {
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--ink-muted);
    margin: 1.1rem 0 0.3rem;
}
.entity-accordion-body .nested-label {
    font-family: var(--font-data);
    font-weight: 500;
    color: var(--ink);
    margin: 0.6rem 0 0.15rem;
}
.entity-accordion-body .nested-note { margin: 0.3rem 0; }

section { margin-bottom: 1.5rem; }

table {
    border-collapse: collapse;
    width: 100%;
    margin-top: 0.4rem;
    font-size: 0.87rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}
th, td { text-align: left; padding: 0.5rem 0.7rem; border-bottom: 1px solid var(--border); vertical-align: top; }
th {
    background: var(--surface-alt);
    font-weight: 600;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    color: var(--ink-muted);
}
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover td { background: var(--surface-alt); }
tr.current-gen { font-weight: 600; }
tr.row-link { cursor: pointer; }

/* Numbers, codes, dates, dotted field paths - anything meant to line up or be scanned - gets the
   monospace stack with tabular figures. */
td.num, td.code, td.date, code.field-name, .sparkline text {
    font-family: var(--font-data);
    font-variant-numeric: tabular-nums;
}
code.field-name { font-size: 0.78rem; background: var(--surface-alt); padding: 0.1rem 0.35rem; border-radius: 4px; }
.field-technical {
    display: block;
    font-family: var(--font-data);
    font-size: 0.72rem;
    color: var(--ink-faint);
    margin-top: 0.15rem;
}

.diff-old { color: var(--diff-old); text-decoration: line-through; text-decoration-color: color-mix(in srgb, var(--diff-old) 55%, transparent); }
.diff-new { color: var(--diff-new); font-weight: 600; }
.diff-arrow { color: var(--ink-faint); margin: 0 0.4rem; }
.diff-tag { font-size: 0.7rem; color: var(--ink-faint); margin-left: 0.35rem; text-transform: uppercase; }
.diff-removed-badge { color: var(--removed); font-weight: 600; text-transform: uppercase; font-size: 0.78rem; }

.attr-list { display: flex; flex-wrap: wrap; gap: 0.35rem; }
.attr-chip {
    font-family: var(--font-data);
    font-size: 0.78rem;
    background: var(--surface-alt);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 0.1rem 0.4rem;
    color: var(--ink-muted);
}

.toggle-row { margin: 0.5rem 0; font-size: 0.88rem; }
.csv-link { font-size: 0.78rem; font-weight: normal; margin-left: 0.75rem; color: var(--ink-muted); }

.collect-form { display: flex; gap: 1rem; align-items: center; margin: 1rem 0; }

.admin-form { display: flex; flex-wrap: wrap; gap: 1rem; align-items: flex-end; margin: 1rem 0; }
.admin-form label, .checkbox-label { display: flex; flex-direction: column; gap: 0.25rem; font-size: 0.85rem; color: var(--ink-muted); }
.checkbox-label { flex-direction: row; align-items: center; gap: 0.4rem; }
.admin-form input[type="text"], .admin-form input[type="password"] {
    padding: 0.45rem 0.6rem; border: 1px solid var(--border); border-radius: var(--radius);
    background: var(--surface); color: var(--ink); font-family: var(--font-body);
}
.inline-form { display: flex; gap: 0.5rem; align-items: center; }
.account-card { border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem 1.25rem; margin: 1rem 0; background: var(--surface); }
.account-card-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; }
.account-card h3 { margin: 0; font-size: 1rem; font-family: var(--font-data); }
.account-card-badges { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-top: 0.35rem; }
.account-notes { margin: 0.4rem 0 0.75rem; font-size: 0.88rem; }
.account-card > .inline-form { margin: 0.5rem 0 0.75rem; }
.account-card .entity-accordion { margin-top: 0.75rem; }

button.button-danger { background: var(--removed); border-color: var(--removed); }
table.admin-table { width: 100%; border-collapse: collapse; margin-top: 0.5rem; font-size: 0.88rem; }
table.admin-table th, table.admin-table td { padding: 0.4rem 0.6rem; border-bottom: 1px solid var(--border); text-align: left; vertical-align: middle; }
table.admin-table input[type="text"], table.admin-table input[type="date"] {
    padding: 0.3rem 0.4rem; border: 1px solid var(--border); border-radius: var(--radius);
    background: var(--surface); color: var(--ink); font-family: var(--font-data); width: 100%;
}

tr.log-error td { color: var(--removed); }
.text-error { color: var(--removed); }
tr.log-warn td { color: var(--warn-ink); }

.table-filter {
    display: block;
    width: 100%;
    max-width: 320px;
    margin: 0.4rem 0 0.5rem;
    padding: 0.4rem 0.7rem;
    font-family: var(--font-body);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    color: var(--ink);
}

form.search-page-form { display: flex; gap: 0.5rem; max-width: 500px; }
form.search-page-form input { flex: 1; padding: 0.5rem; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); color: var(--ink); }

button {
    font-family: var(--font-body);
    padding: 0.45rem 1.1rem;
    border: 1px solid var(--accent);
    background: var(--accent);
    color: var(--accent-ink);
    border-radius: var(--radius);
    cursor: pointer;
    font-weight: 500;
}
button:hover { opacity: 0.9; }
select {
    padding: 0.35rem;
    font-family: var(--font-body);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    color: var(--ink);
}

.sparkline { width: 100%; max-width: 640px; height: auto; margin: 0.5rem 0 1rem; display: block; }
.spark-line { stroke: var(--accent); stroke-width: 2; }
.spark-dot { fill: var(--surface); stroke: var(--accent); stroke-width: 2; }
.spark-axis { stroke: var(--border); stroke-width: 1; }
.spark-label { fill: var(--ink-faint); font-size: 11px; }

.stat-row { display: flex; gap: 1.5rem; flex-wrap: wrap; margin: 0.5rem 0 1rem; }
.stat {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.6rem 0.9rem;
    min-width: 140px;
}
.stat .stat-label { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.03em; color: var(--ink-faint); }
.stat .stat-value { font-family: var(--font-data); font-size: 1.15rem; font-weight: 600; margin-top: 0.15rem; }

/* --- Auth pages (login/signup/verify/forgot-reset password) - Phase 6 --------------------- */
.logout-form { display: flex; align-items: center; gap: 0.5rem; margin-left: 1rem; }
button.button-link {
    background: none; border: none; padding: 0; color: var(--ink-muted);
    font-size: 0.85rem; text-decoration: underline; cursor: pointer;
}
button.button-link:hover { color: var(--accent); opacity: 1; }

.auth-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 1.5rem; }
.auth-card {
    width: 100%; max-width: 380px; background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius); box-shadow: var(--shadow); padding: 1.75rem 1.75rem 1.5rem;
}
.auth-card h1 { font-size: 1.2rem; margin: 0 0 1.1rem; }
.auth-card h1 a { color: inherit; text-decoration: none; }
.auth-card form { display: flex; flex-direction: column; gap: 0.85rem; }
.auth-card label { display: flex; flex-direction: column; gap: 0.3rem; font-size: 0.85rem; color: var(--ink-muted); }
.auth-card input[type="text"], .auth-card input[type="email"], .auth-card input[type="password"] {
    padding: 0.5rem 0.65rem; border: 1px solid var(--border); border-radius: var(--radius);
    background: var(--bg); color: var(--ink); font-family: var(--font-body); font-size: 0.95rem;
}
.auth-card button[type="submit"] { margin-top: 0.3rem; }
.auth-links { margin-top: 1.1rem; font-size: 0.85rem; text-align: center; }
.auth-links a { display: block; margin-top: 0.35rem; }