:root {
    --primary: #4f46e5;
    --primary-dark: #3730a3;
    --background: #f4f7fb;
    --surface: #ffffff;
    --sidebar: #111827;
    --sidebar-text: #d1d5db;
    --text: #111827;
    --muted: #6b7280;
    --border: #e5e7eb;
    --success: #059669;
    --warning: #d97706;
    --danger: #dc2626;
    --radius: 14px;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    min-height: 100%;
}

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

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

.app-layout {
    min-height: 100vh;
}

.sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    z-index: 40;
    width: 260px;
    padding: 22px 16px;
    background: var(--sidebar);
    color: white;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0 10px 25px;
}

.sidebar-brand small {
    display: block;
    margin-top: 3px;
    color: #9ca3af;
}

.brand-icon {
    display: grid;
    width: 42px;
    height: 42px;
    border-radius: 12px;
    place-items: center;
    background: var(--primary);
    font-weight: bold;
}

.sidebar-menu {
    display: grid;
    gap: 7px;
}

.sidebar-menu a {
    display: flex;
    align-items: center;
    gap: 11px;
    padding: 13px 14px;
    border-radius: 10px;
    color: var(--sidebar-text);
    text-decoration: none;
}

.sidebar-menu a:hover,
.sidebar-menu a.active {
    background: var(--primary);
    color: white;
}

.menu-icon {
    width: 22px;
    text-align: center;
}

.main-content {
    min-height: calc(100vh - 60px);
    margin-left: 260px;
    padding: 30px;
}

.mobile-header {
    display: none;
}

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 24px;
}

.page-header h1 {
    margin: 0 0 6px;
    font-size: 28px;
}

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

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

.dashboard-card,
.panel {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: 0 5px 20px rgb(15 23 42 / 5%);
}

.dashboard-card {
    padding: 22px;
    border-left: 5px solid var(--primary);
}

.dashboard-card.success {
    border-left-color: var(--success);
}

.dashboard-card.warning {
    border-left-color: var(--warning);
}

.dashboard-card.danger {
    border-left-color: var(--danger);
}

.card-label {
    display: block;
    margin-bottom: 12px;
    color: var(--muted);
}

.card-number {
    font-size: 32px;
}

.panel {
    padding: 20px;
}

.button {
    display: inline-flex;
    min-height: 44px;
    align-items: center;
    justify-content: center;
    padding: 10px 18px;
    border: 0;
    border-radius: 9px;
    cursor: pointer;
    text-decoration: none;
}

.button.primary {
    background: var(--primary);
    color: white;
}

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

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

table {
    width: 100%;
    border-collapse: collapse;
}

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

th {
    color: var(--muted);
    font-size: 13px;
}

.badge {
    display: inline-flex;
    padding: 6px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: bold;
}

.badge.active {
    background: #d1fae5;
    color: #065f46;
}

.badge.passive {
    background: #fee2e2;
    color: #991b1b;
}

.empty-state,
.error-page {
    padding: 40px 20px;
    text-align: center;
    color: var(--muted);
}

.footer {
    margin-left: 260px;
    padding: 20px 30px;
    color: var(--muted);
    font-size: 13px;
}

.sidebar-overlay {
    display: none;
}

@media (max-width: 1100px) {
    .dashboard-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 899px) {
    .mobile-header {
        position: sticky;
        top: 0;
        z-index: 30;
        display: flex;
        min-height: 60px;
        align-items: center;
        gap: 15px;
        padding: 10px 16px;
        background: var(--surface);
        border-bottom: 1px solid var(--border);
    }

    .menu-button {
        width: 42px;
        height: 42px;
        border: 0;
        border-radius: 9px;
        background: var(--primary);
        color: white;
        font-size: 22px;
    }

    .sidebar {
        width: min(82vw, 290px);
        transform: translateX(-105%);
        transition: transform 180ms ease;
    }

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

    .sidebar-overlay.visible {
        position: fixed;
        inset: 0;
        z-index: 35;
        display: block;
        background: rgb(0 0 0 / 50%);
    }

    .main-content,
    .footer {
        margin-left: 0;
    }

    .main-content {
        padding: 20px 15px;
    }

    .footer {
        padding: 18px 15px;
    }
}

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

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

    .page-header .button {
        width: 100%;
    }

    table,
    tbody,
    tr,
    td {
        display: block;
        width: 100%;
    }

    thead {
        display: none;
    }

    tr {
        margin-bottom: 14px;
        padding: 12px;
        border: 1px solid var(--border);
        border-radius: 10px;
    }

    td {
        display: grid;
        grid-template-columns: 120px 1fr;
        gap: 10px;
        padding: 9px 5px;
        border: 0;
    }

    td::before {
        content: attr(data-label);
        color: var(--muted);
        font-weight: bold;
    }
}

.login-body {
    min-height: 100vh;
    margin: 0;
    background:
        radial-gradient(circle at top left, #4338ca, transparent 45%),
        linear-gradient(145deg, #111827, #1e1b4b);
}

.login-container {
    display: grid;
    min-height: 100vh;
    padding: 20px;
    place-items: center;
}

.login-card {
    width: min(100%, 430px);
    padding: 32px;
    border: 1px solid rgb(255 255 255 / 15%);
    border-radius: 18px;
    background: rgb(255 255 255 / 96%);
    box-shadow: 0 25px 70px rgb(0 0 0 / 30%);
}

.setup-card {
    width: min(100%, 560px);
}

.login-brand {
    display: grid;
    width: 55px;
    height: 55px;
    margin: 0 auto 18px;
    border-radius: 15px;
    place-items: center;
    background: var(--primary);
    color: white;
    font-size: 25px;
    font-weight: bold;
}

.login-card h1 {
    margin: 0;
    text-align: center;
}

.login-description {
    margin: 10px 0 25px;
    color: var(--muted);
    text-align: center;
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    margin-bottom: 7px;
    font-size: 14px;
    font-weight: bold;
}

.form-group input {
    width: 100%;
    min-height: 48px;
    padding: 10px 13px;
    border: 1px solid var(--border);
    border-radius: 9px;
    outline: none;
}

.form-group input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgb(79 70 229 / 15%);
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.login-button {
    width: 100%;
    min-height: 50px;
}

.alert {
    margin: 20px 0;
    padding: 12px 14px;
    border-radius: 9px;
    font-size: 14px;
}

.alert.danger {
    background: #fee2e2;
    color: #991b1b;
}

.alert.success {
    background: #d1fae5;
    color: #065f46;
}

.sidebar-user {
    position: absolute;
    right: 16px;
    bottom: 20px;
    left: 16px;
    padding: 14px;
    border-top: 1px solid rgb(255 255 255 / 10%);
}

.sidebar-user strong,
.sidebar-user small {
    display: block;
}

.sidebar-user small {
    margin-top: 4px;
    color: #9ca3af;
}

.logout-button {
    width: 100%;
    margin-top: 12px;
    padding: 10px;
    border: 1px solid rgb(255 255 255 / 15%);
    border-radius: 8px;
    background: transparent;
    color: #fca5a5;
    cursor: pointer;
}

.logout-button:hover {
    background: #7f1d1d;
    color: white;
}

@media (max-width: 620px) {
    .login-card {
        padding: 25px 20px;
    }

    .form-grid {
        grid-template-columns: 1fr;
        gap: 0;
    }
}


.form-panel {
    max-width: 900px;
}

.form-group textarea {
    width: 100%;
    padding: 12px 13px;
    border: 1px solid var(--border);
    border-radius: 9px;
    outline: none;
    resize: vertical;
}

.form-group textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgb(79 70 229 / 15%);
}

.form-note {
    margin: 0 0 20px;
    padding: 12px;
    border-radius: 8px;
    background: #eef2ff;
    color: #3730a3;
    font-size: 13px;
}

.form-buttons,
.table-actions {
    display: flex;
    align-items: center;
    gap: 9px;
    flex-wrap: wrap;
}

.table-actions form {
    margin: 0;
}

.button.small {
    min-height: 36px;
    padding: 7px 11px;
    font-size: 13px;
}

.button.secondary {
    border: 1px solid var(--border);
    background: white;
    color: var(--text);
}

.button.danger {
    background: var(--danger);
    color: white;
}

.button.success {
    background: var(--success);
    color: white;
}

.form-group select {
    width: 100%;
    min-height: 48px;
    padding: 10px 13px;
    border: 1px solid var(--border);
    border-radius: 9px;
    background: white;
}

.checkbox-group {
    display: flex;
    align-items: center;
    padding-top: 25px;
}

.checkbox-group label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
}

.checkbox-group input {
    width: 20px;
    height: 20px;
}

.error-list {
    margin: 0;
    padding-left: 20px;
}

.qr-print-area {
    display: flex;
    justify-content: center;
}

.qr-card {
    width: min(100%, 540px);
    padding: 30px;
    border: 3px solid #111827;
    border-radius: 16px;
    background: white;
    text-align: center;
}

.qr-title {
    font-size: 24px;
    font-weight: 800;
    letter-spacing: 1px;
}

.qr-site {
    margin-top: 8px;
    color: var(--muted);
    font-size: 18px;
}

.qr-image {
    display: block;
    width: min(100%, 420px);
    height: auto;
    margin: 20px auto;
}

.qr-card h2 {
    margin: 12px 0;
    font-size: 25px;
}

.qr-point-code {
    margin-bottom: 18px;
    font-size: 17px;
}

.qr-instruction {
    padding-top: 15px;
    border-top: 1px solid var(--border);
    color: var(--muted);
    font-size: 13px;
}

@media print {
    .sidebar,
    .mobile-header,
    .footer,
    .no-print {
        display: none !important;
    }

    body,
    .main-content {
        margin: 0;
        padding: 0;
        background: white;
    }

    .qr-print-area {
        min-height: 100vh;
        align-items: center;
    }

    .qr-card {
        box-shadow: none;
        break-inside: avoid;
    }
}