:root {
    --bg-main: #f8fafc;
    --bg-card: #ffffff;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --header-bg: #0f172a;
    --header-text: #f8fafc;
    
    --success: #10b981;
    --success-bg: #ecfdf5;
    --danger: #ef4444;
    --danger-bg: #fef2f2;
    --warning: #f59e0b;
    --warning-bg: #fffbeb;
    
    /* Regra estrita: campos editáveis com fundo amarelo claro */
    --editable-bg: #fef9c3;
    --editable-border: #facc15;
    --editable-focus: #eab308;
    
    /* Campos automáticos calculados */
    --auto-bg: #f1f5f9;
    --auto-border: #cbd5e1;
    
    --border: #e2e8f0;
    --radius: 8px;
    --radius-sm: 4px;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header & Topbar */
.app-header {
    background-color: var(--header-bg);
    color: var(--header-text);
    padding: 0.75rem 1.5rem;
    box-shadow: var(--shadow);
}

.topbar-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1300px;
    margin: 0 auto;
}

.brand-title {
    font-size: 1.25rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #ffffff;
    text-decoration: none;
}

.brand-badge {
    background: #3b82f6;
    color: #fff;
    font-size: 0.7rem;
    padding: 0.15rem 0.5rem;
    border-radius: 9999px;
    font-weight: 600;
}

.user-nav {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.875rem;
}

.user-role-badge {
    background: #334155;
    color: #cbd5e1;
    padding: 0.2rem 0.6rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
}

.nav-link {
    color: #94a3b8;
    text-decoration: none;
    transition: color 0.2s;
}

.nav-link:hover, .nav-link.active {
    color: #ffffff;
}

/* Sub-nav menu */
.sub-nav {
    background-color: #1e293b;
    border-bottom: 1px solid #334155;
    padding: 0.5rem 1.5rem;
    overflow-x: auto;
}

.sub-nav-list {
    display: flex;
    list-style: none;
    gap: 1.5rem;
    max-width: 1300px;
    margin: 0 auto;
}

.sub-nav-list a {
    color: #cbd5e1;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    padding: 0.35rem 0.5rem;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.sub-nav-list a:hover, .sub-nav-list a.active {
    background: #334155;
    color: #ffffff;
}

/* Main Container */
.main-content {
    flex: 1;
    max-width: 1300px;
    width: 100%;
    margin: 1.5rem auto;
    padding: 0 1.5rem;
}

/* Page titles */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.page-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #0f172a;
}

/* Flash alerts */
.alert {
    padding: 0.85rem 1.25rem;
    border-radius: var(--radius);
    margin-bottom: 1.25rem;
    font-size: 0.95rem;
}

.alert-success {
    background-color: var(--success-bg);
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.alert-error {
    background-color: var(--danger-bg);
    color: #991b1b;
    border: 1px solid #fecaca;
}

.alert-warning {
    background-color: var(--warning-bg);
    color: #92400e;
    border: 1px solid #fde68a;
}

/* Cards & Layout */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    padding: 1.25rem;
    margin-bottom: 1.5rem;
}

.card-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #0f172a;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* KPI Grid */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.kpi-card {
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem;
    box-shadow: var(--shadow-sm);
}

.kpi-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.05em;
    margin-bottom: 0.25rem;
}

.kpi-value {
    font-size: 1.6rem;
    font-weight: 700;
    color: #0f172a;
}

.kpi-value.positive {
    color: #059669;
}

.kpi-value.negative {
    color: #dc2626;
}

/* Forms & Inputs */
.form-group {
    margin-bottom: 1rem;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.35rem;
    color: #334155;
}

.form-control {
    width: 100%;
    padding: 0.6rem 0.85rem;
    font-size: 0.95rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    transition: border-color 0.15s, box-shadow 0.15s;
    background-color: #ffffff;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

/* Campos Editáveis com fundo amarelo claro */
.editable-input, input.editable, select.editable {
    background-color: var(--editable-bg) !important;
    border-color: var(--editable-border) !important;
    font-weight: 600;
}

.editable-input:focus, input.editable:focus {
    border-color: var(--editable-focus) !important;
    box-shadow: 0 0 0 3px rgba(234, 179, 8, 0.25) !important;
}

.editable-label::after {
    content: " ✎";
    color: #b45309;
    font-weight: bold;
}

/* Campos Automáticos / Readonly */
.auto-input, input[readonly] {
    background-color: var(--auto-bg) !important;
    border-color: var(--auto-border) !important;
    color: #475569;
    cursor: default;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.6rem 1.2rem;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: background-color 0.15s, transform 0.05s;
}

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

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

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

.btn-success {
    background-color: var(--success);
    color: #ffffff;
}

.btn-success:hover {
    background-color: #059669;
}

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

.btn-secondary {
    background-color: #e2e8f0;
    color: #334155;
}

.btn-secondary:hover {
    background-color: #cbd5e1;
}

.btn-warning {
    background-color: var(--warning);
    color: #78350f;
    font-weight: 700;
}

.btn-warning:hover {
    background-color: #d97706;
    color: #ffffff;
}

.btn-sm {
    padding: 0.35rem 0.75rem;
    font-size: 0.8rem;
}

.print-only {
    display: none;
}

/* Tables */
.table-responsive {
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.925rem;
}

.table th {
    background-color: #f1f5f9;
    color: #475569;
    text-align: left;
    padding: 0.75rem 1rem;
    font-weight: 600;
    border-bottom: 2px solid var(--border);
}

.table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

.table tbody tr:hover {
    background-color: #f8fafc;
}

.text-right {
    text-align: right !important;
}

.text-center {
    text-align: center !important;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
}

.badge-open {
    background: #dbeafe;
    color: #1e40af;
}

.badge-closed {
    background: #e2e8f0;
    color: #475569;
}

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

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

/* Footer */
.app-footer {
    background: #ffffff;
    border-top: 1px solid var(--border);
    padding: 1.25rem;
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: auto;
}

.legend-box {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--editable-bg);
    border: 1px solid var(--editable-border);
    padding: 0.35rem 0.85rem;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    color: #854d0e;
    margin-bottom: 1rem;
}

/* Responsive grid for rounds */
.sales-grid-row {
    display: grid;
    grid-template-columns: 2fr 1.5fr 1.5fr;
    align-items: center;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
    gap: 1rem;
}

@media (max-width: 768px) {
    .sub-nav-list {
        gap: 0.75rem;
    }
    
    .sales-grid-row {
        grid-template-columns: 1fr;
        gap: 0.5rem;
        background: #ffffff;
        border: 1px solid var(--border);
        border-radius: var(--radius-sm);
        margin-bottom: 0.75rem;
        padding: 1rem;
    }
    
    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }
}