:root {
    --bg: #f4f5f7;
    --surface: #ffffff;
    --border: #d8dbe0;
    --text: #1e2227;
    --muted: #626a75;
    --accent: #12507e;
    --accent-hover: #0e3f64;
    --danger: #a4292b;
    --danger-bg: #fdf1f1;
    --warn-bg: #fff8e5;
    --warn-border: #e6c76b;
    --radius: 6px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
    font-size: 15px;
    line-height: 1.5;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ------------------------------------------------------------------ header */
.site-header {
    background: var(--accent);
    color: #fff;
}

.header-inner {
    max-width: 900px;
    margin: 0 auto;
    padding: 0.85rem 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.brand-name { font-weight: 600; }

.brand-sub {
    display: block;
    font-size: 0.8rem;
    opacity: 0.85;
}

.header-nav {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.9rem;
}

.header-nav a {
    color: #fff;
    text-decoration: none;
    border-bottom: 1px solid transparent;
}

.header-nav a:hover { border-bottom-color: rgba(255, 255, 255, 0.7); }

.signed-in {
    opacity: 0.85;
    padding-left: 1rem;
    border-left: 1px solid rgba(255, 255, 255, 0.3);
}

/* -------------------------------------------------------------------- main */
.site-main {
    flex: 1;
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
    padding: 1.5rem 1.25rem 3rem;
}

.site-footer {
    max-width: 900px;
    margin: 0 auto;
    padding: 1rem 1.25rem 2rem;
    color: var(--muted);
    font-size: 0.8rem;
}

/* -------------------------------------------------------------------- tabs */
.tab-strip {
    display: flex;
    gap: 0.25rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: -1px;
}

.tab-button {
    appearance: none;
    background: transparent;
    border: 1px solid transparent;
    border-bottom: none;
    border-radius: var(--radius) var(--radius) 0 0;
    padding: 0.6rem 1.1rem;
    font: inherit;
    font-weight: 500;
    color: var(--muted);
    cursor: pointer;
}

.tab-button:hover { color: var(--text); }

.tab-button.active {
    background: var(--surface);
    border-color: var(--border);
    color: var(--text);
}

.tab-panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 0 var(--radius) var(--radius) var(--radius);
    padding: 1.5rem;
}

.hidden { display: none; }

/* ------------------------------------------------------------------ fields */
.field { margin-bottom: 1.1rem; }

.field-row {
    display: flex;
    gap: 1.25rem;
    flex-wrap: wrap;
}

.field-row > .field {
    flex: 1;
    min-width: 220px;
}

label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.3rem;
}

/* Every text-like input type has to be listed. A bare `input` selector with
   :not() exclusions would out-specify `label.checkbox input` below and break the
   checkbox sizing, so the types are enumerated instead. */
input[type="text"],
input[type="number"],
input[type="date"],
input[type="password"],
input[type="email"],
input[type="search"],
input[type="tel"],
input[type="url"],
input[type="datetime-local"],
select {
    width: 100%;
    padding: 0.5rem 0.6rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font: inherit;
    background: #fff;
    color: var(--text);
}

input:focus, select:focus {
    outline: 2px solid var(--accent);
    outline-offset: -1px;
    border-color: var(--accent);
}

input.disabled, input:disabled {
    background: #eef0f2;
    color: var(--muted);
}

label.checkbox {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    font-weight: 400;
    margin-top: 0.5rem;
}

label.checkbox input { width: auto; }

.hint {
    margin: 0.3rem 0 0;
    font-size: 0.82rem;
    color: var(--muted);
}

.field-error {
    display: block;
    margin-top: 0.3rem;
    font-size: 0.85rem;
    color: var(--danger);
}

.field-error:empty { display: none; }

/* ----------------------------------------------------------------- buttons */
button.primary {
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: var(--radius);
    padding: 0.6rem 1.3rem;
    font: inherit;
    font-weight: 500;
    cursor: pointer;
}

button.primary:hover { background: var(--accent-hover); }

/* ------------------------------------------------------------------ alerts */
.alert {
    border-radius: var(--radius);
    padding: 0.8rem 1rem;
    margin-bottom: 1rem;
    border: 1px solid transparent;
}

.alert-danger {
    background: var(--danger-bg);
    border-color: var(--danger);
    color: var(--danger);
}

.alert-warning {
    background: var(--warn-bg);
    border-color: var(--warn-border);
    color: #6b5310;
}

.alert ul { margin: 0; padding-left: 1.1rem; }

.validation-summary:not(:has(li)) { display: none; }

.environment-banner { font-weight: 500; }

/* ------------------------------------------------------------------ tables */
.audit-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.88rem;
}

.audit-table th, .audit-table td {
    text-align: left;
    padding: 0.55rem 0.7rem;
    border-bottom: 1px solid var(--border);
    vertical-align: top;
}

.audit-table th {
    background: #eef1f4;
    font-weight: 600;
}

.audit-table tr:last-child td { border-bottom: none; }

.audit-table code {
    font-size: 0.82em;
    color: var(--muted);
    word-break: break-all;
}

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

.empty-state {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    color: var(--muted);
}

/* ------------------------------------------------------- log outcome badges */
.outcome-ok {
    color: #1c6b3c;
    font-weight: 500;
}

.outcome-bad {
    color: var(--danger);
    font-weight: 500;
}

/* -------------------------------------------------------------- sign-in page */
.signin {
    max-width: 24rem;
    margin: 2rem auto;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.signin h1 {
    margin: 0;
    font-size: 1.35rem;
}

.signin form {
    display: flex;
    flex-direction: column;
    gap: .25rem;
}

button.block {
    width: 100%;
    padding: .65rem 1rem;
}

/* A rule with the word "or" sitting in the gap, for when both methods show. */
.or {
    display: flex;
    align-items: center;
    gap: .75rem;
    color: var(--muted);
    font-size: .82rem;
    text-transform: uppercase;
    letter-spacing: .08em;
}

.or::before,
.or::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--border);
}

/* Sign-out is a POST, so it is a button styled to match the nav links. */
.signout-form { display: inline; }

.signout-form button {
    appearance: none;
    background: none;
    border: none;
    border-bottom: 1px solid transparent;
    padding: 0;
    font: inherit;
    color: #fff;
    cursor: pointer;
}

.signout-form button:hover { border-bottom-color: rgba(255, 255, 255, .7); }