:root {
    --bg: #f6f2e8;
    --panel: #ffffff;
    --text: #2f2a25;
    --muted: #6d655a;
    --line: #e7dfd1;
    --blue: #2c5aa0;
    --green: #4caf50;
    --red: #a12727;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background: #eef3f7;
    color: var(--text);
}

.app-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    width: 100%;
    min-height: 100vh;
}

.sidebar {
    background: #062b49;
    color: #fff;
    padding: 24px 0;
    display: flex;
    flex-direction: column;
}

.sidebar-brand {
    padding: 0 24px 28px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.sidebar-brand strong {
    display: block;
    font-size: 28px;
    letter-spacing: 1px;
}

.sidebar-brand span {
    display: block;
    margin-top: 6px;
    color: rgba(255, 255, 255, 0.72);
    font-weight: bold;
}

.sidebar-nav {
    display: grid;
    gap: 4px;
    padding-top: 22px;
}

.sidebar-nav a {
    display: block;
    padding: 14px 24px;
    color: rgba(255, 255, 255, 0.86);
    font-weight: bold;
    text-decoration: none;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
    background: #2593ee;
    color: #fff;
}

.sidebar-nav a.disabled {
    opacity: 0.45;
    pointer-events: none;
}

.main-area {
    min-width: 0;
    padding: 24px 32px;
}

.page-content {
    width: 100%;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 18px 20px;
    background: #fff;
    color: var(--text);
    border-radius: 12px;
    width: 100%;
    border: 1px solid var(--line);
}

.topbar h1 {
    margin: 4px 0 0;
    font-size: 22px;
    color: var(--blue);
}

.card {
    margin-top: 16px;
    padding: 16px;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 12px;
    width: 100%;
}

.card h2 {
    margin-top: 0;
    color: var(--blue);
}

.muted {
    color: var(--muted);
}

.btn {
    display: inline-block;
    padding: 10px 14px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    color: var(--text);
    font-weight: bold;
    text-decoration: none;
    cursor: pointer;
}

.btn.primary {
    background: var(--green);
    color: #fff;
    border-color: var(--green);
}

.table-wrap {
    overflow-x: auto;
    border: 1px solid var(--line);
    border-radius: 10px;
}

table {
    width: 100%;
    min-width: 850px;
    border-collapse: collapse;
}

th,
td {
    padding: 10px;
    border-bottom: 1px solid var(--line);
    text-align: left;
}

th {
    background: #fbfaf7;
}

.form {
    display: grid;
    gap: 12px;
}

.form label {
    display: grid;
    gap: 6px;
    font-weight: bold;
}

.form input,
.form select,
.form textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: 8px;
    font: inherit;
}

.form textarea {
    min-height: 90px;
    resize: vertical;
}

.actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.alert {
    margin-top: 16px;
    padding: 12px;
    border-radius: 8px;
    font-weight: bold;
}

.alert.success {
    background: #e8f7ec;
    color: #1c6b33;
}

.alert.error {
    background: #fdecec;
    color: var(--red);
}

.stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    width: 100%;
}

.stat {
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: #fbfaf7;
}

.stat span {
    display: block;
    color: var(--muted);
    font-weight: bold;
}

.stat strong {
    display: block;
    margin-top: 8px;
    font-size: 28px;
    color: var(--blue);
}

.pager {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    margin-top: 20px;
    align-items: center;
}

.page-btn {
    display: inline-block;
    padding: 6px 12px;
    border: 1px solid var(--line);
    border-radius: 7px;
    background: #fff;
    color: var(--text);
    font-size: 13px;
    text-decoration: none;
    font-weight: 500;
}

.page-btn:hover {
    background: #f0f4f8;
}

.page-btn.active {
    background: var(--blue);
    color: #fff;
    border-color: var(--blue);
}

.search-form {
    display: flex;
    gap: 8px;
    align-items: center;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.search-form input[type="text"] {
    flex: 1;
    min-width: 200px;
    padding: 8px 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    font-size: 14px;
    background: #fbfaf7;
    color: var(--text);
}

.search-form input[type="text"]:focus {
    outline: none;
    border-color: var(--blue);
}

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

.mini-btn {
    display: inline-block;
    padding: 6px 8px;
    border: 1px solid var(--line);
    border-radius: 7px;
    background: #fff;
    color: var(--text);
    font-size: 12px;
    font-weight: bold;
    text-decoration: none;
}

.mini-btn.good {
    background: #e8f7ec;
    color: #1c6b33;
}

.mini-btn.danger {
    background: #fdecec;
    color: var(--red);
}

@media (max-width: 800px) {
    .app-layout {
        grid-template-columns: 1fr;
    }

    .sidebar {
        padding: 14px;
    }

    .sidebar-brand {
        padding: 0 0 12px;
    }

    .sidebar-nav {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        padding-top: 12px;
    }

    .sidebar-nav a {
        padding: 10px 12px;
        border-radius: 8px;
    }

    .main-area {
        padding: 14px;
    }

    .topbar {
        align-items: flex-start;
        flex-direction: column;
    }

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