:root {
    --color-white: #ffffff;
    --color-page: #f6f8fb;
    --color-border: #e8edf4;
    --color-text: #1f2937;
    --color-muted: #6b7280;
    --color-blue: #2563eb;
    --color-blue-soft: #eef5ff;
    --color-purple: #6c3df4;
    --color-teal: #11b7ad;
    --color-green: #22b573;
    --color-orange: #ff9f43;
    --color-red: #ef4444;
    --shadow-soft: 0 12px 28px rgba(15, 23, 42, 0.08);
    --radius-card: 8px;
    --sidebar-width: 272px;
    --header-height: 86px;
}

* {
    box-sizing: border-box;
}

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

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

a {
    text-decoration: none;
}

.app-body {
    overflow-x: hidden;
}

.app-shell {
    display: flex;
    min-height: 100vh;
    background: var(--color-page);
}

.app-sidebar {
    width: var(--sidebar-width);
    min-height: 100vh;
    background: var(--color-white);
    border-right: 1px solid var(--color-border);
    position: fixed;
    left: 0;
    top: 0;
    z-index: 1030;
    padding: 24px 18px;
    transition: transform 0.24s ease;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    min-height: 52px;
    margin-bottom: 24px;
}

.sidebar-logo,
.login-logo {
    width: 46px;
    height: 46px;
    border-radius: 8px;
    object-fit: cover;
    border: 1px solid var(--color-border);
}

.sidebar-logo-placeholder,
.login-logo-placeholder {
    width: 46px;
    height: 46px;
    border-radius: 8px;
    display: grid;
    place-items: center;
    background: var(--color-blue-soft);
    color: var(--color-blue);
    font-size: 20px;
}

.sidebar-brand-text {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.sidebar-brand-text strong {
    font-size: 16px;
    color: var(--color-text);
    line-height: 1.2;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-brand-text span {
    font-size: 12px;
    color: var(--color-muted);
    margin-top: 3px;
}

.sidebar-close {
    display: none;
    border: 0;
    background: transparent;
    color: var(--color-muted);
    position: absolute;
    top: 18px;
    right: 16px;
    font-size: 18px;
}

.sidebar-menu {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding-bottom: 24px;
}

.sidebar-section-label {
    margin: 18px 10px 8px;
    font-size: 11px;
    color: #9ca3af;
    text-transform: uppercase;
    font-weight: 700;
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 12px;
    min-height: 44px;
    padding: 11px 12px;
    border-radius: 8px;
    color: var(--color-muted);
    font-size: 14px;
    font-weight: 600;
    transition: background 0.18s ease, color 0.18s ease;
}

.sidebar-link i {
    width: 20px;
    text-align: center;
    font-size: 15px;
}

.sidebar-link:hover,
.sidebar-link.active {
    background: var(--color-blue-soft);
    color: var(--color-blue);
}

.app-content {
    width: 100%;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
}

.top-header {
    min-height: var(--header-height);
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 18px 30px;
    position: sticky;
    top: 0;
    z-index: 900;
}

.top-header-left,
.top-header-right {
    display: flex;
    align-items: center;
    gap: 16px;
    min-width: 0;
}

.top-header-left h1 {
    margin: 0;
    font-size: 22px;
    color: var(--color-text);
    font-weight: 800;
    line-height: 1.2;
}

.top-header-left p {
    margin: 4px 0 0;
    color: var(--color-muted);
    font-size: 13px;
}

.sidebar-toggle {
    width: 42px;
    height: 42px;
    display: none;
    border: 1px solid var(--color-border);
    background: var(--color-white);
    border-radius: 8px;
    color: var(--color-text);
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}

.user-avatar {
    width: 42px;
    height: 42px;
    border-radius: 8px;
    display: grid;
    place-items: center;
    background: var(--color-purple);
    color: var(--color-white);
    font-weight: 800;
}

.user-info {
    display: flex;
    flex-direction: column;
}

.user-info strong {
    font-size: 14px;
    color: var(--color-text);
    line-height: 1.2;
}

.user-info span {
    font-size: 12px;
    color: var(--color-muted);
    margin-top: 3px;
}

.logout-button {
    min-height: 42px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: 1px solid var(--color-border);
    background: var(--color-white);
    color: var(--color-muted);
    padding: 0 14px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 700;
}

.logout-button:hover {
    color: var(--color-red);
    border-color: #fecaca;
    background: #fff7f7;
}

.app-main {
    padding: 28px 30px 34px;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 22px;
    align-items: start;
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
    margin-bottom: 22px;
}

.summary-card {
    min-height: 128px;
    border-radius: var(--radius-card);
    padding: 20px;
    color: var(--color-white);
    box-shadow: var(--shadow-soft);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    overflow: hidden;
}

.summary-card.purple {
    background: var(--color-purple);
}

.summary-card.teal {
    background: var(--color-teal);
}

.summary-card.green {
    background: var(--color-green);
}

.summary-card.orange {
    background: var(--color-orange);
}

.summary-card-top {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    align-items: flex-start;
}

.summary-card-title {
    font-size: 13px;
    font-weight: 700;
    opacity: 0.94;
    line-height: 1.4;
}

.summary-card-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    display: grid;
    place-items: center;
    background: rgba(255, 255, 255, 0.18);
    font-size: 18px;
    flex: 0 0 auto;
}

.summary-card-value {
    margin-top: 16px;
    font-size: 24px;
    line-height: 1.15;
    font-weight: 800;
    word-break: break-word;
}

.summary-card-subtitle {
    margin-top: 6px;
    font-size: 12px;
    opacity: 0.88;
}

.content-panel,
.quick-actions-panel {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    box-shadow: 0 8px 22px rgba(15, 23, 42, 0.04);
}

.content-panel {
    padding: 22px;
}

.panel-header {
    display: flex;
    justify-content: space-between;
    gap: 14px;
    align-items: center;
    margin-bottom: 18px;
}

.panel-header h2 {
    margin: 0;
    font-size: 18px;
    font-weight: 800;
    color: var(--color-text);
}

.panel-header p {
    margin: 4px 0 0;
    color: var(--color-muted);
    font-size: 13px;
}

.chart-box {
    height: 290px;
    position: relative;
}

.dashboard-middle-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.3fr) minmax(260px, 0.7fr);
    gap: 22px;
}

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

.clean-table th,
.clean-table td {
    padding: 13px 12px;
    border-bottom: 1px solid var(--color-border);
    font-size: 14px;
    vertical-align: middle;
}

.clean-table th {
    color: var(--color-muted);
    font-size: 12px;
    text-transform: uppercase;
    font-weight: 800;
    background: #fbfcfe;
}

.clean-table td {
    color: var(--color-text);
}

.badge-soft {
    display: inline-flex;
    align-items: center;
    min-height: 26px;
    padding: 4px 9px;
    border-radius: 999px;
    background: var(--color-blue-soft);
    color: var(--color-blue);
    font-size: 12px;
    font-weight: 800;
}

.quick-actions-panel {
    padding: 18px;
    position: sticky;
    top: calc(var(--header-height) + 20px);
}

.quick-actions-panel h2 {
    margin: 0 0 14px;
    font-size: 17px;
    font-weight: 800;
}

.quick-actions-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.quick-action {
    min-height: 52px;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border-radius: 8px;
    color: var(--color-text);
    font-weight: 700;
    font-size: 14px;
    border: 1px solid transparent;
}

.quick-action i {
    width: 34px;
    height: 34px;
    border-radius: 8px;
    display: grid;
    place-items: center;
    flex: 0 0 auto;
}

.quick-action.blue {
    background: #f3f7ff;
}

.quick-action.blue i {
    background: var(--color-blue-soft);
    color: var(--color-blue);
}

.quick-action.green {
    background: #effbf5;
}

.quick-action.green i {
    background: #dcfce7;
    color: var(--color-green);
}

.quick-action.orange {
    background: #fff7ed;
}

.quick-action.orange i {
    background: #ffedd5;
    color: var(--color-orange);
}

.quick-action.purple {
    background: #f5f3ff;
}

.quick-action.purple i {
    background: #ede9fe;
    color: var(--color-purple);
}

.quick-action:hover {
    border-color: var(--color-border);
    transform: translateY(-1px);
}

.form-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    padding: 22px;
    box-shadow: 0 8px 22px rgba(15, 23, 42, 0.04);
}

.form-label {
    font-size: 13px;
    color: var(--color-text);
    font-weight: 800;
}

.form-control,
.form-select {
    border-radius: 8px;
    border: 1px solid var(--color-border);
    min-height: 44px;
    color: var(--color-text);
    font-size: 14px;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--color-blue);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

.btn {
    border-radius: 8px;
    min-height: 42px;
    font-weight: 800;
}

.btn-primary {
    background: var(--color-purple);
    border-color: var(--color-purple);
}

.btn-primary:hover {
    background: #5b2fe0;
    border-color: #5b2fe0;
}

.login-page {
    min-height: 100vh;
    background: linear-gradient(135deg, #f8fafc 0%, #eef5ff 100%);
}

.login-shell {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 26px;
}

.login-card {
    width: min(100%, 430px);
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    box-shadow: var(--shadow-soft);
    padding: 30px;
}

.login-brand {
    display: flex;
    align-items: center;
    gap: 13px;
    margin-bottom: 30px;
}

.login-brand h1 {
    margin: 0;
    font-size: 20px;
    font-weight: 900;
    color: var(--color-text);
}

.login-brand p {
    margin: 4px 0 0;
    color: var(--color-muted);
    font-size: 13px;
}

.login-heading h2 {
    margin: 0;
    font-size: 24px;
    font-weight: 900;
}

.login-heading p {
    margin: 7px 0 22px;
    color: var(--color-muted);
    font-size: 14px;
}

.input-with-icon {
    position: relative;
}

.input-with-icon i {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-muted);
    font-size: 14px;
}

.input-with-icon .form-control {
    padding-left: 42px;
}

.login-button {
    width: 100%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
}

.login-footer-note {
    margin-top: 22px;
    text-align: center;
    color: var(--color-muted);
    font-size: 12px;
}

.sidebar-overlay {
    display: none;
}

@media (max-width: 1200px) {
    .summary-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

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

    .quick-actions-panel {
        position: static;
    }
}

@media (max-width: 992px) {
    .app-sidebar {
        transform: translateX(-100%);
    }

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

    .sidebar-close {
        display: block;
    }

    .app-content {
        margin-left: 0;
    }

    .sidebar-toggle {
        display: grid;
        place-items: center;
    }

    .sidebar-overlay.show {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(15, 23, 42, 0.35);
        z-index: 1020;
    }

    .top-header {
        padding: 16px 18px;
    }

    .app-main {
        padding: 20px 18px 28px;
    }

    .dashboard-middle-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .summary-grid {
        grid-template-columns: 1fr;
    }

    .top-header {
        align-items: flex-start;
        flex-direction: column;
    }

    .top-header-right {
        width: 100%;
        justify-content: space-between;
    }

    .user-info {
        display: none;
    }

    .logout-button span {
        display: none;
    }

    .chart-box {
        height: 240px;
    }

    .login-card {
        padding: 24px;
    }

    .clean-table {
        min-width: 620px;
    }

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