:root {
    color-scheme: light;
    --bg: #f3f5f7;
    --surface: #ffffff;
    --surface-2: #eef2f6;
    --border: #d7dde5;
    --text: #16202e;
    --muted: #687385;
    --primary: #2454d6;
    --primary-strong: #143c9f;
    --danger: #c93535;
    --danger-soft: #fff0f0;
    --success: #21835b;
    --success-soft: #edf9f3;
    --shadow: 0 12px 35px rgba(24, 32, 46, 0.08);
    --radius: 8px;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
}

[data-theme="dark"] {
    color-scheme: dark;
    --bg: #0e131b;
    --surface: #171e29;
    --surface-2: #202a38;
    --border: #303b4d;
    --text: #edf2f8;
    --muted: #a9b3c2;
    --primary: #83a8ff;
    --primary-strong: #b1c7ff;
    --danger: #ff8585;
    --danger-soft: #3b1d23;
    --success: #72d0a7;
    --success-soft: #173025;
    --shadow: 0 18px 45px rgba(0, 0, 0, 0.28);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    background: var(--bg);
    color: var(--text);
    font-size: 15px;
    line-height: 1.5;
}

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

code {
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 2px 6px;
}

.app-header {
    position: sticky;
    top: 0;
    z-index: 20;
    display: grid;
    grid-template-columns: minmax(250px, 340px) 1fr auto;
    gap: 16px;
    align-items: center;
    min-height: 74px;
    padding: 12px 24px;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 8px 30px rgba(24, 32, 46, 0.06);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
}

.brand-mark {
    display: grid;
    place-items: center;
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: var(--primary);
    color: #fff;
    font-weight: 800;
}

.brand strong,
.brand small {
    display: block;
}

.brand small,
.muted,
.user-label {
    color: var(--muted);
}

.main-nav,
.header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.main-nav {
    flex-wrap: wrap;
}

.main-nav a {
    border-radius: 7px;
    color: var(--muted);
    padding: 9px 10px;
}

.main-nav a:hover {
    background: var(--surface-2);
    color: var(--text);
}

.app-main {
    width: min(100%, 1440px);
    margin: 0 auto;
    padding: 26px 24px 44px;
}

.surface,
.login-panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.surface {
    padding: 20px;
}

.narrow {
    max-width: 760px;
}

.login-screen {
    min-height: calc(100vh - 130px);
    display: grid;
    place-items: center;
}

.login-panel {
    width: min(100%, 440px);
    padding: 30px;
}

.eyebrow {
    color: var(--muted);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0;
    margin: 0 0 8px;
    text-transform: uppercase;
}

h1,
h2 {
    margin: 0 0 10px;
    line-height: 1.2;
}

h1 {
    font-size: 26px;
}

.content-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 18px;
}

.filter-bar {
    display: grid;
    grid-template-columns: 80px 150px 150px minmax(160px, 1fr) minmax(160px, 1fr) 130px 130px auto;
    gap: 10px;
    margin-bottom: 16px;
}

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

.grid-full {
    grid-column: 1 / -1;
}

label {
    display: block;
    color: var(--muted);
    font-size: 13px;
    font-weight: 700;
    margin: 0 0 7px;
}

input,
select,
textarea {
    width: 100%;
    min-height: 42px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 7px;
    color: var(--text);
    font: inherit;
    padding: 9px 11px;
}

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

input:focus,
select:focus,
textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(36, 84, 214, 0.18);
    outline: none;
}

.check-row {
    display: flex;
    align-items: center;
    gap: 9px;
}

.check-row input {
    width: 18px;
    min-height: 18px;
    accent-color: var(--primary);
}

.btn,
button,
input[type="submit"],
input[type="reset"] {
    align-items: center;
    border: 1px solid transparent;
    border-radius: 7px;
    cursor: pointer;
    display: inline-flex;
    font: inherit;
    font-weight: 750;
    justify-content: center;
    min-height: 42px;
    padding: 9px 14px;
}

.btn-primary,
button[type="submit"],
input[type="submit"] {
    background: var(--primary);
    color: #fff;
}

.btn-primary:hover,
button[type="submit"]:hover,
input[type="submit"]:hover {
    background: var(--primary-strong);
}

.btn-ghost {
    background: var(--surface);
    border-color: var(--border);
    color: var(--text);
}

.btn-ghost:hover {
    background: var(--surface-2);
}

.btn-danger {
    background: var(--danger-soft);
    border-color: var(--danger);
    color: var(--danger);
}

.btn-small {
    min-height: 34px;
    padding: 6px 10px;
    font-size: 13px;
}

.btn-block {
    width: 100%;
}

.alert {
    border-radius: 7px;
    margin-bottom: 16px;
    padding: 12px 14px;
}

.alert-danger {
    background: var(--danger-soft);
    border: 1px solid var(--danger);
    color: var(--danger);
}

.alert-success {
    background: var(--success-soft);
    border: 1px solid var(--success);
    color: var(--success);
}

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

.data-table {
    border-collapse: collapse;
    min-width: 980px;
    width: 100%;
}

.data-table th,
.data-table td {
    border-bottom: 1px solid var(--border);
    padding: 12px 10px;
    text-align: left;
    vertical-align: top;
}

.data-table th {
    background: var(--surface-2);
    color: var(--muted);
    font-size: 12px;
    font-weight: 800;
    text-transform: uppercase;
}

.data-table tr:hover td {
    background: rgba(36, 84, 214, 0.06);
}

.empty-row,
.loading {
    color: var(--muted);
    padding: 28px;
    text-align: center;
}

.pagination-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 16px;
}

.page {
    border: 1px solid var(--border);
    border-radius: 7px;
    padding: 7px 10px;
}

.page.current {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

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

.action-card {
    border: 1px solid var(--border);
    border-radius: 8px;
    display: block;
    padding: 18px;
}

.action-card:hover {
    background: var(--surface-2);
}

.action-card strong,
.action-card span {
    display: block;
}

.action-card span {
    color: var(--muted);
    margin-top: 4px;
}

@media (max-width: 1150px) {
    .app-header {
        grid-template-columns: 1fr;
    }

    .header-actions {
        justify-content: space-between;
    }

    .filter-bar {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 760px) {
    .app-main,
    .app-header {
        padding-left: 16px;
        padding-right: 16px;
    }

    .content-header,
    .form-actions {
        align-items: stretch;
        flex-direction: column;
    }

    .filter-bar,
    .form-grid,
    .action-grid {
        grid-template-columns: 1fr;
    }

    h1 {
        font-size: 22px;
    }
}

@media print {
    .app-header,
    .filter-bar,
    .pagination-bar,
    .btn {
        display: none !important;
    }

    body {
        background: #fff;
        color: #000;
    }

    .app-main {
        max-width: none;
        padding: 0;
    }

    .surface {
        border: 0;
        box-shadow: none;
        padding: 0;
    }
}