* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --sidebar-width: 250px;
    --sidebar-collapsed: 68px;
    --topbar-height: 64px;
    --bg: #f7f9fc;
    --sidebar-bg: #ffffff;
    --sidebar-hover: #f0f5fa;
    --sidebar-active: #eef7ff;
    --sidebar-active-text: #00a89c;
    --card-bg: #ffffff;
    --text: #2d3748;
    --text-muted: #718096;
    --text-light: #a0aec0;
    --border: #e8ecf1;
    --border-light: #f3f5f8;
    --primary: #00a89c;
    --primary-dark: #008f85;
    --primary-light: #e6f7f6;
    --success: #38c172;
    --success-light: #e8f8ef;
    --danger: #e53e3e;
    --danger-light: #fef0f0;
    --warning: #ed8936;
    --warning-light: #fef5eb;
    --purple: #805ad5;
    --purple-light: #f3effc;
    --teal: #00a89c;
    --teal-light: #e6f7f6;
    --radius: 14px;
    --radius-sm: 10px;
    --shadow: 0 1px 3px rgba(0,0,0,0.03), 0 1px 2px rgba(0,0,0,0.02);
    --shadow-md: 0 4px 14px rgba(0,0,0,0.05);
    --shadow-lg: 0 8px 28px rgba(0,0,0,0.07);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    -webkit-font-smoothing: antialiased;
}

.sidebar {
    width: var(--sidebar-width);
    background: var(--sidebar-bg);
    border-right: 1px solid var(--border);
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    display: flex;
    flex-direction: column;
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1), transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.sidebar.collapsed {
    width: var(--sidebar-collapsed);
}

.sidebar.collapsed .sidebar-brand span,
.sidebar.collapsed .nav-item span,
.sidebar.collapsed .sidebar-footer {
    opacity: 0;
    pointer-events: none;
    width: 0;
    overflow: hidden;
}

.sidebar.collapsed .sidebar-brand {
    justify-content: center;
    padding: 1.25rem 0;
    gap: 0;
}

.sidebar.collapsed .nav-item {
    justify-content: center;
    padding: 0.75rem 0;
    gap: 0;
}

.sidebar.collapsed .nav-item i {
    font-size: 1.15rem;
}

.sidebar.collapsed .nav-item {
    position: relative;
}

.sidebar.collapsed .nav-item::after {
    content: attr(data-tooltip);
    position: absolute;
    left: calc(var(--sidebar-collapsed) + 8px);
    top: 50%;
    transform: translateY(-50%);
    background: var(--text);
    color: white;
    padding: 0.45rem 0.85rem;
    border-radius: 8px;
    font-size: 0.8rem;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s;
    z-index: 200;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.sidebar.collapsed .nav-item:hover::after {
    opacity: 1;
}

.sidebar.collapsed .collapse-btn i {
    transform: rotate(180deg);
}

.sidebar.collapsed .collapse-btn span {
    opacity: 0;
    width: 0;
    overflow: hidden;
}

.sidebar.collapsed ~ .main-wrapper {
    margin-left: var(--sidebar-collapsed);
}

.sidebar-brand {
    padding: 1.5rem 1.5rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.85rem;
    color: var(--text);
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    border-bottom: 1px solid var(--border);
}

.brand-logo {
    max-width: 160px;
    height: auto;
    object-fit: contain;
}

.sidebar-nav {
    flex: 1;
    padding: 1rem 0.85rem;
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    padding: 0.7rem 1rem;
    color: var(--text-muted);
    text-decoration: none;
    border-radius: var(--radius-sm);
    font-size: 0.88rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.nav-item:hover {
    background: var(--sidebar-hover);
    color: var(--text);
}

.nav-item.active {
    background: var(--sidebar-active);
    color: var(--primary);
    font-weight: 600;
}

.nav-item i {
    width: 20px;
    text-align: center;
    font-size: 1rem;
    flex-shrink: 0;
}

.collapse-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.55rem;
    margin: 0 0.85rem 0.85rem;
    background: var(--border-light);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.8rem;
    transition: all 0.2s;
    white-space: nowrap;
    overflow: hidden;
}

.collapse-btn:hover {
    background: var(--border);
    color: var(--text);
}

.collapse-btn i {
    font-size: 0.85rem;
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

.sidebar-footer {
    padding: 0.5rem 0.85rem 1rem;
    border-top: 1px solid var(--border);
    color: var(--text-light);
    text-align: center;
}

.main-wrapper {
    margin-left: var(--sidebar-width);
    flex: 1;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: margin-left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.topbar {
    height: var(--topbar-height);
    background: var(--card-bg);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    padding: 0 2rem;
    gap: 1rem;
    position: sticky;
    top: 0;
    z-index: 50;
}

.topbar h1 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text);
    letter-spacing: -0.02em;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.2rem;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.4rem;
}

.main-content {
    flex: 1;
    padding: 1.75rem 2rem;
    max-width: 1440px;
    width: 100%;
}

.section-content {
    display: none;
}

.section-content.active {
    display: block;
}

.dashboard-kpis {
    display: flex;
    flex-direction: column;
    margin-bottom: 1.75rem;
}

.dash-kpi {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    position: relative;
    overflow: hidden;
}

.dash-kpi:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.dash-kpi::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
}

.dash-kpi.kpi-primary::after { background: linear-gradient(90deg, #00a89c, #00c9b7); }
.dash-kpi.kpi-success::after { background: linear-gradient(90deg, #38c172, #68d391); }
.dash-kpi.kpi-warning::after { background: linear-gradient(90deg, #ed8936, #f6ad55); }
.dash-kpi.kpi-danger::after { background: linear-gradient(90deg, #e53e3e, #fc8181); }
.dash-kpi.kpi-teal::after { background: linear-gradient(90deg, #00a89c, #38d9a9); }
.dash-kpi.kpi-blue::after { background: linear-gradient(90deg, #4299e1, #63b3ed); }
.dash-kpi.kpi-green::after { background: linear-gradient(90deg, #38a169, #68d391); }
.dash-kpi.kpi-red::after { background: linear-gradient(90deg, #c53030, #fc8181); }

.kpi-section-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 0.75rem;
    margin-top: 0.5rem;
    padding-left: 0.25rem;
}

.kpi-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
    margin-bottom: 1.5rem;
}

@media (max-width: 1100px) {
    .kpi-row { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
    .kpi-row { grid-template-columns: 1fr; }
}

.kpi-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.kpi-primary .kpi-icon { background: var(--primary-light); color: var(--primary); }
.kpi-success .kpi-icon { background: var(--success-light); color: var(--success); }
.kpi-warning .kpi-icon { background: var(--warning-light); color: var(--warning); }
.kpi-danger .kpi-icon { background: var(--danger-light); color: var(--danger); }
.kpi-teal .kpi-icon { background: #e6f7f6; color: #00a89c; }
.kpi-blue .kpi-icon { background: #ebf4ff; color: #4299e1; }
.kpi-green .kpi-icon { background: #e8f8ef; color: #38a169; }
.kpi-red .kpi-icon { background: #fef0f0; color: #c53030; }

.kpi-value.kpi-money {
    font-size: 1.5rem;
}

.kpi-info {
    flex: 1;
    min-width: 0;
}

.kpi-info .kpi-label {
    font-size: 0.78rem;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 0.4rem;
}

.kpi-info .kpi-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--text);
    line-height: 1;
    letter-spacing: -0.03em;
}

.kpi-info .kpi-sub {
    font-size: 0.78rem;
    color: var(--text-light);
    margin-top: 0.35rem;
}

.card {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    margin-bottom: 1.5rem;
}

.card-header {
    padding: 1rem 1.5rem;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-body {
    padding: 1.5rem;
}

.upload-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.25rem;
    margin-bottom: 1.5rem;
}

.upload-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 1.75rem 1.5rem;
    box-shadow: var(--shadow);
    border: 2px dashed var(--border);
    transition: all 0.3s ease;
    text-align: center;
}

.upload-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}

.upload-card.uploaded {
    border-color: var(--success);
    border-style: solid;
    background: linear-gradient(135deg, #f0fdf4, #ecfdf5);
}

.upload-card-icon {
    width: 52px;
    height: 52px;
    background: var(--primary-light);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.3rem;
    color: var(--primary);
}

.upload-card-icon.icon-required {
    background: var(--teal-light);
    color: var(--teal);
}

.upload-card.uploaded .upload-card-icon {
    background: var(--success-light);
    color: var(--success);
}

.upload-card h3 {
    color: var(--text);
    margin-bottom: 0.4rem;
    font-size: 1rem;
    font-weight: 600;
}

.upload-card p {
    color: var(--text-muted);
    font-size: 0.83rem;
    margin-bottom: 1rem;
    line-height: 1.4;
}

.badge {
    display: inline-block;
    padding: 0.2rem 0.75rem;
    border-radius: 20px;
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
}

.badge-required {
    background: var(--danger-light);
    color: var(--danger);
}

.badge-optional {
    background: var(--primary-light);
    color: var(--primary);
}

.file-input-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.file-input-wrapper input[type="file"] {
    display: none;
}

.file-input-wrapper label {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.4rem;
    background: var(--primary);
    color: white;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: 500;
    font-size: 0.88rem;
    transition: all 0.2s;
}

.file-input-wrapper label:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

.file-name {
    font-size: 0.83rem;
    color: var(--success);
    font-weight: 500;
}

.file-info {
    margin-top: 0.75rem;
    padding: 0.75rem;
    background: var(--bg);
    border-radius: 8px;
    font-size: 0.83rem;
    text-align: left;
}

.employee-field {
    max-width: 420px;
    margin: 0 auto 1.5rem;
    text-align: left;
}

.employee-field label {
    display: block;
    font-weight: 600;
    font-size: 0.88rem;
    color: var(--text);
    margin-bottom: 0.4rem;
}

.employee-field label i {
    color: var(--primary);
    margin-right: 0.35rem;
}

.employee-field input {
    width: 100%;
    padding: 0.65rem 1rem;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.93rem;
    outline: none;
    background: var(--card-bg);
    color: var(--text);
    transition: all 0.2s;
}

.employee-field input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}

.btn-process {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    width: 100%;
    max-width: 380px;
    margin: 0 auto 2rem;
    padding: 0.9rem 2rem;
    background: linear-gradient(135deg, #00a89c, #00c9b7);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 0 4px 12px rgba(0, 168, 156, 0.25);
}

.btn-process:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 168, 156, 0.35);
}

.btn-process:disabled {
    background: #cbd5e1;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn-sm {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.45rem 1rem;
    border: none;
    border-radius: 8px;
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

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

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

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

.btn-secondary:hover {
    background: var(--border);
}

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

.btn-danger:hover {
    background: #dc2626;
}

.btn-danger-outline {
    background: transparent;
    color: var(--danger);
    border: 1.5px solid var(--danger);
}

.btn-danger-outline:hover {
    background: var(--danger-light);
}

.btn-view {
    background: var(--primary);
    color: white;
    border: none;
    padding: 0.4rem 0.9rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.82rem;
    font-weight: 500;
    margin-right: 0.3rem;
    transition: all 0.2s;
}

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

.btn-delete {
    background: transparent;
    color: var(--danger);
    border: 1.5px solid var(--danger);
    padding: 0.4rem 0.9rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.82rem;
    font-weight: 500;
    transition: all 0.2s;
}

.btn-delete:hover { background: var(--danger-light); }

.results-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 0;
}

.r-tab {
    padding: 0.7rem 1.25rem;
    background: var(--border-light);
    border: none;
    cursor: pointer;
    font-weight: 500;
    font-size: 0.88rem;
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
    transition: all 0.2s;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.r-tab.active {
    background: var(--card-bg);
    color: var(--primary);
    box-shadow: 0 -2px 6px rgba(0,0,0,0.04);
}

.tab-panel {
    background: var(--card-bg);
    border-radius: 0 var(--radius) var(--radius) var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    display: none;
}

.tab-panel.active {
    display: block;
}

.kpi-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.kpi-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 1rem 1.25rem;
    box-shadow: var(--shadow);
    border-left: 4px solid transparent;
}

.kpi-card.kpi-blue { border-left-color: var(--primary); }
.kpi-card.kpi-green { border-left-color: var(--success); }
.kpi-card.kpi-red { border-left-color: var(--danger); }
.kpi-card.kpi-yellow { border-left-color: var(--warning); }

.kpi-card .kpi-label {
    font-size: 0.76rem;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 0.3rem;
}

.kpi-card .kpi-value {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text);
}

.charts-section {
    margin-bottom: 1.5rem;
}

.charts-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

.filter-bar {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    align-items: center;
}

.filter-group {
    position: relative;
    flex: 1;
    min-width: 200px;
}

.filter-group i {
    position: absolute;
    left: 0.85rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-light);
    font-size: 0.85rem;
}

.filter-group input {
    width: 100%;
    padding: 0.55rem 1rem 0.55rem 2.4rem;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.88rem;
    outline: none;
    background: var(--card-bg);
    transition: all 0.2s;
}

.filter-bar select {
    padding: 0.55rem 1rem;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.88rem;
    outline: none;
    background: var(--card-bg);
    color: var(--text);
    transition: all 0.2s;
}

.filter-group input:focus,
.filter-bar select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}

.table-wrapper {
    max-height: 600px;
    overflow-y: auto;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.84rem;
}

thead th {
    background: #f8fafc;
    color: var(--text-muted);
    padding: 0.75rem 1rem;
    text-align: left;
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    position: sticky;
    top: 0;
    border-bottom: 1px solid var(--border);
}

tbody tr {
    border-bottom: 1px solid var(--border-light);
    transition: background 0.15s;
}

tbody tr:hover {
    background: #f8fafc;
}

tbody td {
    padding: 0.65rem 1rem;
    color: var(--text);
}

.status-ok { color: var(--success); font-weight: 600; }
.status-faltante { color: var(--danger); font-weight: 600; }
.status-sobrante { color: var(--warning); font-weight: 600; }
.stock-low { color: var(--danger); font-weight: 600; }
.stock-medium { color: var(--warning); font-weight: 600; }
.stock-good { color: var(--success); font-weight: 600; }

.empty-state {
    text-align: center;
    padding: 3.5rem 2rem;
    color: var(--text-muted);
}

.empty-icon {
    width: 64px;
    height: 64px;
    background: var(--primary-light);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.25rem;
    font-size: 1.6rem;
    color: var(--primary);
}

.empty-state p {
    font-size: 0.95rem;
    font-weight: 500;
    margin-bottom: 0.3rem;
}

.empty-hint {
    color: var(--text-light) !important;
    font-size: 0.85rem !important;
    font-weight: 400 !important;
}

.loading {
    display: none;
    text-align: center;
    padding: 2rem;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-top: 3px solid var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 1rem;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.aliases {
    font-size: 0.78em;
    color: var(--primary);
    font-style: italic;
    margin-top: 2px;
}

.alert {
    padding: 0.85rem 1.15rem;
    border-radius: var(--radius-sm);
    margin-bottom: 1rem;
    font-size: 0.88rem;
    font-weight: 500;
}

.alert-error {
    background: var(--danger-light);
    color: var(--danger);
    border: 1px solid #fecaca;
}

.alert-success {
    background: var(--success-light);
    color: #047857;
    border: 1px solid #a7f3d0;
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

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

    .main-wrapper {
        margin-left: 0;
    }

    .menu-toggle {
        display: block;
    }

    .collapse-btn {
        display: none;
    }

    .sidebar.collapsed {
        width: var(--sidebar-width);
        transform: translateX(-100%);
    }

    .sidebar.collapsed ~ .main-wrapper {
        margin-left: 0;
    }

    .main-content {
        padding: 1rem;
    }

    .topbar {
        padding: 0 1rem;
    }

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

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

    .filter-bar {
        flex-direction: column;
    }

    .filter-group {
        min-width: unset;
        width: 100%;
    }

    .kpi-row {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 480px) {
    .kpi-row {
        grid-template-columns: 1fr;
    }
}