:root {
    --bg: #f6f7fb;
    --surface: #ffffff;
    --text: #172033;
    --muted: #667085;
    --border: #e4e7ec;
    --primary: #7c3aed;
    --primary-dark: #5b21b6;
    --success: #039855;
    --warning: #d97706;
    --danger: #d92d20;
    --neutral: #475467;
    --shadow: 0 14px 40px rgba(16, 24, 40, .08);
    --radius: 18px;
    --sidebar: 280px;
    --topbar: 72px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

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

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

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

.login-body {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
    background:
        radial-gradient(circle at top left, rgba(124, 58, 237, .24), transparent 30%),
        radial-gradient(circle at bottom right, rgba(217, 45, 32, .12), transparent 28%),
        var(--bg);
}

.login-card {
    width: min(440px, 100%);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 26px;
    padding: 28px;
    box-shadow: var(--shadow);
}

.brand-login,
.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 14px;
}

.brand-login {
    margin-bottom: 24px;
}

.brand-login h1 {
    margin: 0;
    font-size: 28px;
}

.brand-login p,
.sidebar-brand small {
    margin: 4px 0 0;
    color: var(--muted);
}

.brand-icon {
    width: 46px;
    height: 46px;
    border-radius: 16px;
    display: grid;
    place-items: center;
    font-weight: 800;
    color: #fff;
    background: linear-gradient(135deg, var(--primary), #ec4899);
}

.login-help {
    margin-top: 18px;
    padding: 14px;
    border-radius: 14px;
    background: #f9fafb;
    color: var(--muted);
    font-size: 14px;
    line-height: 1.5;
}

.sidebar {
    width: var(--sidebar);
    height: 100vh;
    position: fixed;
    inset: 0 auto 0 0;
    background: #111827;
    color: #fff;
    padding: 22px 18px;
    z-index: 30;
    overflow-y: auto;
}

.sidebar-brand {
    margin-bottom: 28px;
}

.sidebar nav {
    display: grid;
    gap: 8px;
}

.sidebar nav a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 13px 14px;
    border-radius: 14px;
    color: #d1d5db;
    transition: .2s ease;
}

.sidebar nav a:hover,
.sidebar nav a.active {
    background: rgba(255, 255, 255, .1);
    color: #fff;
}

.main {
    margin-left: var(--sidebar);
    min-height: 100vh;
}

.topbar {
    height: var(--topbar);
    background: rgba(255, 255, 255, .92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: 0 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    position: sticky;
    top: 0;
    z-index: 20;
}

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

.topbar-user {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 12px;
}

.hamburger {
    display: none;
    width: 42px;
    height: 42px;
    border: 1px solid var(--border);
    background: var(--surface);
    border-radius: 12px;
    cursor: pointer;
    padding: 9px;
}

.hamburger span {
    display: block;
    height: 2px;
    margin: 5px 0;
    background: var(--text);
    border-radius: 8px;
}

.content {
    padding: 24px;
}

.page-title {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 22px;
}

.page-title h1 {
    margin: 0 0 6px;
    font-size: clamp(26px, 3vw, 38px);
}

.page-title p {
    margin: 0;
    color: var(--muted);
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
    margin-bottom: 18px;
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 20px;
    margin-bottom: 18px;
}

.card h2 {
    margin: 0 0 18px;
    font-size: 20px;
}

.metric {
    display: grid;
    gap: 8px;
}

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

.metric strong {
    font-size: 30px;
    letter-spacing: -1px;
}

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

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

.card-header h2 {
    margin: 0;
}

.form-grid {
    display: grid;
    gap: 14px;
}

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

label {
    display: grid;
    gap: 7px;
    font-weight: 700;
    color: #344054;
}

label small {
    font-weight: 400;
}

input,
select,
textarea {
    width: 100%;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: #fff;
    color: var(--text);
    padding: 12px 13px;
    outline: none;
    transition: .2s ease;
}

textarea {
    resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(124, 58, 237, .10);
}

.span-3 {
    grid-column: span 3;
}

.form-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
}

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

.search-form input {
    min-width: 240px;
}

.btn {
    border: 0;
    border-radius: 12px;
    padding: 11px 14px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-weight: 700;
    transition: .2s ease;
    white-space: nowrap;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn-sm {
    padding: 8px 10px;
    font-size: 13px;
}

.btn-full {
    width: 100%;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
}

.btn-light {
    background: #f2f4f7;
    color: #344054;
}

.btn-warning {
    background: #fff7ed;
    color: var(--warning);
}

.btn-danger {
    background: #fff1f3;
    color: var(--danger);
}

.alert {
    padding: 13px 14px;
    border-radius: 14px;
    margin-bottom: 14px;
    font-weight: 700;
}

.alert-success {
    background: #ecfdf3;
    color: var(--success);
}

.alert-danger {
    background: #fff1f3;
    color: var(--danger);
}

.alert-warning {
    background: #fff7ed;
    color: var(--warning);
}

.table-responsive {
    width: 100%;
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 780px;
}

th,
td {
    padding: 14px 12px;
    border-bottom: 1px solid var(--border);
    text-align: left;
    vertical-align: middle;
}

th {
    color: var(--muted);
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: .04em;
    background: #fcfcfd;
}

tbody tr:hover {
    background: #fafafa;
}

.actions-col {
    width: 260px;
}

.actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.actions form {
    display: inline-flex;
}

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

.badge {
    display: inline-flex;
    padding: 7px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 800;
}

.badge-success {
    background: #ecfdf3;
    color: var(--success);
}

.badge-warning {
    background: #fffaeb;
    color: var(--warning);
}

.badge-danger {
    background: #fff1f3;
    color: var(--danger);
}

.badge-neutral {
    background: #f2f4f7;
    color: var(--neutral);
}

.overlay {
    display: none;
}

.no-scroll {
    overflow: hidden;
}

@media (max-width: 1180px) {
    .cards-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

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

@media (max-width: 920px) {
    .sidebar {
        transform: translateX(-110%);
        transition: .25s ease;
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .overlay.show {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(17, 24, 39, .52);
        z-index: 25;
    }

    .main {
        margin-left: 0;
    }

    .hamburger {
        display: inline-block;
    }

    .topbar {
        padding: 0 14px;
    }

    .topbar-user span {
        display: none;
    }

    .content {
        padding: 16px;
    }

    .form-3 {
        grid-template-columns: 1fr;
    }

    .span-3 {
        grid-column: auto;
    }

    .card-header {
        align-items: stretch;
        flex-direction: column;
    }

    .search-form {
        width: 100%;
    }

    .search-form input {
        min-width: 0;
    }
}

@media (max-width: 620px) {
    .cards-grid {
        grid-template-columns: 1fr;
    }

    .card {
        padding: 16px;
        border-radius: 16px;
    }

    .page-title {
        flex-direction: column;
    }

    .actions {
        flex-direction: column;
        align-items: stretch;
    }

    .actions .btn,
    .actions form,
    .actions form button {
        width: 100%;
    }
}