* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font: 14px/1.5 "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    color: #1f2937;
    background: #f3f5f8;
}

a {
    color: inherit;
    text-decoration: none;
}

input,
select,
button,
textarea {
    font: inherit;
}

.layout {
    min-height: 100vh;
    display: flex;
}

.sidebar {
    width: 220px;
    background: #15202b;
    color: #c8d0d9;
    padding: 18px 14px;
}

.brand {
    font-size: 18px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 18px;
}

.nav {
    display: grid;
    gap: 6px;
}

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

.nav a.active,
.nav a:hover {
    background: #223140;
    color: #fff;
}

.main {
    flex: 1;
    padding: 18px;
}

.main.full {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 18px;
}

.topbar-title {
    font-size: 20px;
    font-weight: 700;
}

.panel {
    background: #fff;
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 18px;
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.06);
}

.panel-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 14px;
}

.panel-head h2 {
    margin: 0;
    font-size: 16px;
}

.stats-grid,
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    margin-bottom: 18px;
}

.stats-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
}

.stat-card {
    background: #fff;
    border-radius: 12px;
    padding: 16px;
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.06);
}

.stat-card span {
    display: block;
    color: #6b7280;
    margin-bottom: 8px;
}

.stat-card strong {
    font-size: 22px;
}

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

.filter-grid.wide {
    grid-template-columns: repeat(5, minmax(0, 1fr));
}

.form-grid.single {
    grid-template-columns: 1fr;
}

label span {
    display: block;
    font-size: 13px;
    color: #6b7280;
    margin-bottom: 6px;
}

input,
select,
textarea {
    width: 100%;
    height: 38px;
    padding: 0 12px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    background: #fff;
}

textarea {
    min-height: 90px;
    padding: 10px 12px;
}

.btn {
    height: 38px;
    padding: 0 16px;
    border: 0;
    border-radius: 8px;
    background: #e5e7eb;
    color: #111827;
    cursor: pointer;
}

.btn.primary {
    background: #0f766e;
    color: #fff;
}

.btn.small {
    height: 30px;
    font-size: 12px;
    padding: 0 12px;
}

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

table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
}

th,
td {
    padding: 10px 8px;
    border-bottom: 1px solid #e5e7eb;
    text-align: left;
    vertical-align: top;
    white-space: nowrap;
}

th {
    font-size: 13px;
    color: #6b7280;
}

.flash-stack {
    display: grid;
    gap: 10px;
    margin-bottom: 16px;
}

.main.full .flash-stack {
    width: 100%;
    max-width: 420px;
    margin: 0 auto 16px;
}

.flash {
    padding: 12px 14px;
    border-radius: 8px;
}

.flash.success {
    background: #dcfce7;
    color: #166534;
}

.flash.error {
    background: #fee2e2;
    color: #991b1b;
}

.login-wrap {
    width: 100%;
    max-width: 420px;
}

.captcha-login-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 120px 72px;
    gap: 10px;
    align-items: center;
}

.login-captcha-image {
    width: 120px;
    height: 42px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    background: #f8fafc;
}

.login-card {
    background: #fff;
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 16px 40px rgba(15, 23, 42, 0.08);
}

.login-card h1 {
    margin: 0 0 8px;
    font-size: 22px;
}

.login-card p {
    margin: 0 0 18px;
    color: #6b7280;
}

.muted {
    color: #6b7280;
    font-size: 12px;
    margin-top: 10px;
}

.action-row {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 12px;
}

.status-box,
.captcha-box {
    padding: 12px;
    background: #f8fafc;
    border-radius: 8px;
    margin-top: 12px;
}

.captcha-box img {
    max-width: 100%;
    height: auto;
    display: block;
}

.inline-form {
    display: inline;
}

.checkbox {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.checkbox input {
    width: auto;
    height: auto;
}

.mini-input {
    width: 72px;
    margin-top: 6px;
}

.cell-sub {
    font-size: 12px;
    color: #6b7280;
}

.doc-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.doc-list {
    margin: 0;
    padding-left: 18px;
}

.doc-list li {
    margin-bottom: 8px;
}

.doc-block {
    margin-bottom: 14px;
}

pre {
    margin: 0;
    padding: 14px;
    border-radius: 10px;
    background: #0f172a;
    color: #e2e8f0;
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-word;
}

code {
    font-family: Consolas, "Courier New", monospace;
}

.accent-blue {
    color: #1d4ed8;
    font-weight: 700;
}

@media (max-width: 1100px) {
    .stats-grid,
    .grid-2,
    .doc-grid,
    .filter-grid.wide,
    .form-grid,
    .filter-grid {
        grid-template-columns: 1fr;
    }

    .captcha-login-row {
        grid-template-columns: 1fr;
    }

    .sidebar {
        width: 88px;
    }

    .brand {
        font-size: 14px;
    }

    .nav a {
        font-size: 12px;
        padding: 9px 8px;
    }
}

@media (max-width: 720px) {
    .layout {
        display: block;
    }

    .sidebar {
        width: auto;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .nav {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .main {
        padding: 12px;
    }

    .topbar {
        display: block;
    }

    .topbar-user {
        margin-top: 6px;
        color: #6b7280;
    }
}