:root {
    --bg: #f3f6fb;
    --panel: #ffffff;
    --panel-muted: #f7f9fc;
    --text: #18212f;
    --muted: #647087;
    --line: #dbe2ec;
    --primary: #135bba;
    --primary-strong: #0f4a97;
    --danger-bg: #fff1f0;
    --danger-text: #a53d2c;
    --success-bg: #edf8ef;
    --success-text: #1c6e37;
    --shadow: 0 18px 36px rgba(17, 35, 66, 0.08);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text);
    background: linear-gradient(180deg, #eef3fa 0%, #f8fbff 100%);
}

.admin-body,
.dashboard-body {
    min-height: 100vh;
}

.admin-auth-shell {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 20px;
}

.admin-auth-card {
    width: min(100%, 440px);
    background: var(--panel);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
    padding: 30px;
}

.admin-auth-card h1,
.panel-heading h2 {
    margin: 0 0 10px;
}

.stack-form,
.inline-form {
    display: grid;
    gap: 16px;
}

.stack-form label,
.inline-form label {
    display: grid;
    gap: 8px;
    font-size: 0.95rem;
}

input[type="text"],
input[type="password"],
input[type="url"] {
    width: 100%;
    border: 1px solid #bcc8d8;
    border-radius: 10px;
    padding: 11px 14px;
    font-size: 1rem;
}

.admin-button,
.secondary-button,
.danger-button,
.ghost-link {
    border-radius: 10px;
    text-decoration: none;
    font-size: 0.95rem;
}

.admin-button,
.secondary-button,
.danger-button {
    border: none;
    padding: 12px 16px;
    cursor: pointer;
}

.admin-button {
    background: var(--primary);
    color: #fff;
}

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

.secondary-button {
    background: #e9f0fb;
    color: var(--primary);
}

.danger-button {
    background: #fce9e7;
    color: #9f3324;
}

.danger-button:hover {
    background: #f8d9d5;
}

.dashboard-shell {
    width: min(1400px, calc(100% - 32px));
    margin: 24px auto 32px;
    display: grid;
    gap: 18px;
}

.dashboard-header,
.panel-card,
.stat-card {
    background: var(--panel);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
}

.dashboard-header {
    padding: 24px 28px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 18px;
}

.dashboard-header h1 {
    margin: 0;
}

.dashboard-subtitle,
.panel-heading p,
.admin-auth-card p,
.eyebrow {
    margin: 0;
    color: var(--muted);
}

.eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.74rem;
    margin-bottom: 8px;
}

.header-actions,
.export-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.ghost-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 14px;
    background: var(--panel-muted);
    color: var(--text);
    border: 1px solid var(--line);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
}

.stat-card {
    padding: 18px 20px;
    display: grid;
    gap: 10px;
}

.stat-card span {
    color: var(--muted);
    font-size: 0.94rem;
}

.stat-card strong {
    font-size: 2rem;
}

.panel-card {
    padding: 22px 24px;
    display: grid;
    gap: 18px;
}

.panel-heading {
    display: flex;
    justify-content: space-between;
    gap: 12px;
}

.grow {
    flex: 1;
}

.inline-form {
    grid-template-columns: 1fr auto;
    align-items: end;
}

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

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--panel);
}

th,
td {
    padding: 12px 14px;
    border-bottom: 1px solid var(--line);
    text-align: left;
    vertical-align: top;
    font-size: 0.93rem;
}

th {
    background: var(--panel-muted);
    font-weight: 600;
}

.ua-cell {
    min-width: 280px;
    color: var(--muted);
}

.alert {
    border-radius: 12px;
    padding: 14px 16px;
    border: 1px solid transparent;
}

.alert-error {
    background: var(--danger-bg);
    color: var(--danger-text);
    border-color: #f2cbc6;
}

.alert-success {
    background: var(--success-bg);
    color: var(--success-text);
    border-color: #ccead2;
}

@media (max-width: 900px) {
    .dashboard-header {
        flex-direction: column;
    }

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