:root {
    --bg: #eef4f7;
    --paper: #ffffff;
    --paper-soft: #f7fbfd;
    --ink: #173042;
    --muted: #5f7686;
    --line: #d8e4eb;
    --line-strong: #b8cbd7;
    --accent: #0d6e8a;
    --accent-strong: #0a5970;
    --accent-soft: #dceff5;
    --sidebar-top: #1c5677;
    --sidebar-bottom: #11384f;
    --shadow: 0 20px 55px rgba(17, 56, 79, 0.08);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    color: var(--ink);
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(238, 244, 247, 0.98)),
        repeating-linear-gradient(
            90deg,
            rgba(13, 110, 138, 0.025) 0,
            rgba(13, 110, 138, 0.025) 1px,
            transparent 1px,
            transparent 36px
        );
}

.login-shell {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
}

.login-panel {
    width: min(100%, 460px);
    padding: 28px;
    background: linear-gradient(180deg, var(--paper) 0%, var(--paper-soft) 100%);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
}

.login-form {
    display: grid;
    gap: 12px;
    margin-top: 20px;
}

.login-error {
    margin-top: 16px;
    padding: 12px 14px;
    background: #fbe8e6;
    color: #8c2b23;
    border: 1px solid #efc3bd;
}

.shell,
.detail-shell {
    min-height: 100vh;
}

.shell {
    display: grid;
    grid-template-columns: 320px 1fr;
}

.sidebar {
    padding: 32px 28px;
    background: linear-gradient(180deg, var(--sidebar-top) 0%, var(--sidebar-bottom) 100%);
    color: #f1f7fa;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.eyebrow {
    margin: 0 0 12px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 12px;
    color: #b8d4e2;
}

h1,
h2 {
    margin: 0;
    font-weight: 600;
    line-height: 1.1;
}

h1 {
    font-size: clamp(2.2rem, 4vw, 3rem);
}

h2 {
    font-size: 1.35rem;
    margin-bottom: 18px;
}

.lede {
    margin-top: 18px;
    color: var(--muted);
    max-width: 54ch;
    line-height: 1.5;
}

.sidebar .lede {
    color: #d6e7f0;
}

.stats {
    display: grid;
    gap: 16px;
}

.stat-label {
    display: block;
    color: #b7cfdb;
    font-size: 0.85rem;
    margin-bottom: 6px;
}

.main,
.detail-shell {
    padding: 28px;
}

.toolbar,
.panel,
.table-wrap {
    background: var(--paper);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
}

.toolbar,
.panel {
    padding: 20px;
}

.toolbar {
    margin-bottom: 18px;
    background: linear-gradient(180deg, var(--paper) 0%, var(--paper-soft) 100%);
}

.search {
    display: grid;
    grid-template-columns: 72px 1fr auto;
    gap: 12px;
    align-items: center;
}

input,
button,
.link-btn {
    font: inherit;
}

.link-btn.secondary {
    background: transparent;
    color: #f1f7fa;
    border: 1px solid rgba(255, 255, 255, 0.28);
}

.link-btn.secondary:hover {
    background: rgba(255, 255, 255, 0.12);
    color: #ffffff;
}

.link-btn.secondary-dark {
    background: transparent;
    color: var(--ink);
    border: 1px solid var(--line-strong);
}

.link-btn.secondary-dark:hover {
    background: var(--accent-soft);
    color: var(--ink);
}

input {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--line);
    border-radius: 4px;
    background: #fff;
    color: var(--ink);
}

input:focus {
    outline: 2px solid rgba(13, 110, 138, 0.14);
    border-color: var(--accent);
}

button,
.link-btn {
    padding: 12px 16px;
    border: 0;
    background: var(--accent);
    color: white;
    text-decoration: none;
    display: inline-block;
    cursor: pointer;
    border-radius: 4px;
    transition: background-color 160ms ease, transform 160ms ease;
}

button:hover,
.link-btn:hover {
    background: var(--accent-strong);
}

button:active,
.link-btn:active {
    transform: translateY(1px);
}

.table-wrap {
    overflow: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th,
td {
    text-align: left;
    padding: 12px 14px;
    border-bottom: 1px solid var(--line);
    vertical-align: top;
    font-size: 0.95rem;
}

thead th {
    position: sticky;
    top: 0;
    background: #eef6fa;
    color: #24475d;
    z-index: 1;
}

tbody tr:nth-child(even) {
    background: #fbfdfe;
}

tbody tr:hover {
    background: #eef7fb;
}

.pager {
    display: flex;
    gap: 12px;
    margin-top: 18px;
}

.pager a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
}

.detail-header {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: flex-start;
    margin-bottom: 20px;
}

.detail-actions {
    display: flex;
    gap: 12px;
    align-items: center;
}

.detail-grid {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 18px;
    margin-bottom: 18px;
}

.facts {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px 18px;
    margin: 0;
}

.facts div {
    padding-top: 10px;
    border-top: 1px solid var(--line);
}

.facts dt {
    color: var(--muted);
    font-size: 0.85rem;
    margin-bottom: 6px;
}

.facts dd {
    margin: 0;
}

.history-panel {
    overflow: auto;
}

.compact th,
.compact td {
    font-size: 0.9rem;
}

.panel {
    background: linear-gradient(180deg, var(--paper) 0%, var(--paper-soft) 100%);
}

.detail-header .link-btn {
    white-space: nowrap;
}

a {
    color: var(--accent);
}

a:hover {
    color: var(--accent-strong);
}

@media (max-width: 980px) {
    .shell {
        grid-template-columns: 1fr;
    }

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

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

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

    .detail-header {
        flex-direction: column;
    }

    .detail-actions {
        width: 100%;
        flex-direction: column;
        align-items: stretch;
    }
}