/* ============================================================
   MELIORUS Estoque Fácil — Estilos principais
   ============================================================ */

:root {
    --mel-primary: #1a56db;
    --mel-primary-dark: #1e429f;
    --mel-sidebar-bg: #1a1f2e;
    --mel-sidebar-hover: #2d3450;
    --mel-sidebar-active: #1a56db;
    --mel-sidebar-text: #a0aec0;
    --mel-sidebar-text-active: #ffffff;
    --mel-sidebar-width: 260px;
    --mel-topbar-height: 60px;
    --mel-success: #0e9f6e;
    --mel-danger: #f05252;
    --mel-warning: #e3a008;
    --mel-info: #3f83f8;
    --mel-bg: #f3f4f6;
    --mel-card-bg: #ffffff;
    --mel-border: #e5e7eb;
    --mel-text: #1f2937;
    --mel-text-muted: #6b7280;
    --mel-radius: 10px;
    --mel-shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
    --mel-shadow-md: 0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);
}

* { box-sizing: border-box; }

body.mel-layout {
    margin: 0;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--mel-bg);
    color: var(--mel-text);
    display: flex;
    min-height: 100vh;
}

/* ---- Sidebar ---- */
.mel-sidebar {
    width: var(--mel-sidebar-width);
    background: var(--mel-sidebar-bg);
    min-height: 100vh;
    position: fixed;
    top: 0; left: 0; bottom: 0;
    z-index: 1000;
    overflow-y: auto;
    transition: transform .25s ease;
    scrollbar-width: thin;
    scrollbar-color: #2d3450 transparent;
}

.mel-sidebar-header {
    padding: 18px 20px;
    border-bottom: 1px solid rgba(255,255,255,.06);
    display: flex;
    align-items: center;
}

.mel-brand {
    color: #fff;
    text-decoration: none;
    font-size: 1.1rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
}

.mel-brand i { font-size: 1.4rem; color: var(--mel-primary); }

.mel-sidebar-user {
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid rgba(255,255,255,.06);
}

.mel-avatar {
    width: 36px; height: 36px;
    border-radius: 50%;
    background: var(--mel-primary);
    color: #fff;
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: .9rem;
    flex-shrink: 0;
}

.mel-user-name { color: #fff; font-size: .875rem; font-weight: 600; }
.mel-user-role { color: var(--mel-sidebar-text); font-size: .75rem; }

.mel-nav { list-style: none; padding: 12px 0; margin: 0; }

.mel-nav-section {
    padding: 14px 20px 6px;
    font-size: .65rem;
    text-transform: uppercase;
    letter-spacing: .1em;
    color: #4b5563;
    font-weight: 700;
}

.mel-nav-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 20px;
    color: var(--mel-sidebar-text);
    text-decoration: none;
    font-size: .875rem;
    transition: background .15s, color .15s;
    border-left: 3px solid transparent;
}

.mel-nav-link:hover {
    background: var(--mel-sidebar-hover);
    color: #fff;
}

.mel-nav-link.active {
    background: rgba(26,86,219,.15);
    color: #fff;
    border-left-color: var(--mel-primary);
}

.mel-nav-link i { font-size: 1rem; flex-shrink: 0; }

/* ---- Main ---- */
.mel-main {
    margin-left: var(--mel-sidebar-width);
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    transition: margin-left .25s ease;
}

.mel-topbar {
    height: var(--mel-topbar-height);
    background: var(--mel-card-bg);
    border-bottom: 1px solid var(--mel-border);
    display: flex;
    align-items: center;
    padding: 0 24px;
    gap: 16px;
    position: sticky;
    top: 0;
    z-index: 900;
    box-shadow: var(--mel-shadow);
}

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

.mel-content {
    flex: 1;
    padding: 24px;
}

.mel-footer {
    padding: 12px 24px;
    color: var(--mel-text-muted);
    border-top: 1px solid var(--mel-border);
    background: var(--mel-card-bg);
    text-align: center;
}

/* ---- Cards ---- */
.mel-card {
    background: var(--mel-card-bg);
    border-radius: var(--mel-radius);
    box-shadow: var(--mel-shadow);
    border: 1px solid var(--mel-border);
    padding: 20px;
    margin-bottom: 20px;
}

.mel-card-title {
    font-size: .75rem;
    text-transform: uppercase;
    letter-spacing: .05em;
    color: var(--mel-text-muted);
    font-weight: 600;
    margin-bottom: 4px;
}

.mel-card-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--mel-text);
    line-height: 1.2;
}

.mel-card-icon {
    width: 44px; height: 44px;
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.2rem;
}

.mel-stat-card {
    background: var(--mel-card-bg);
    border-radius: var(--mel-radius);
    box-shadow: var(--mel-shadow);
    border: 1px solid var(--mel-border);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    transition: box-shadow .2s;
}

.mel-stat-card:hover { box-shadow: var(--mel-shadow-md); }

/* ---- Page header ---- */
.mel-page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 12px;
}

.mel-page-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--mel-text);
    margin: 0;
}

/* ---- Table ---- */
.mel-table-wrapper {
    background: var(--mel-card-bg);
    border-radius: var(--mel-radius);
    box-shadow: var(--mel-shadow);
    border: 1px solid var(--mel-border);
    overflow: hidden;
}

.mel-table-wrapper .table { margin-bottom: 0; }

.mel-table-wrapper .table thead th {
    background: #f9fafb;
    border-bottom: 2px solid var(--mel-border);
    font-size: .75rem;
    text-transform: uppercase;
    letter-spacing: .04em;
    color: var(--mel-text-muted);
    padding: 10px 14px;
    font-weight: 700;
}

.mel-table-wrapper .table tbody td { padding: 10px 14px; vertical-align: middle; }
.mel-table-wrapper .table tbody tr:hover { background: #f9fafb; }

/* ---- Filtros ---- */
.mel-filters {
    background: var(--mel-card-bg);
    border-radius: var(--mel-radius);
    border: 1px solid var(--mel-border);
    padding: 16px 20px;
    margin-bottom: 20px;
    box-shadow: var(--mel-shadow);
}

/* ---- Login ---- */
body.mel-login {
    background: linear-gradient(135deg, #1a1f2e 0%, #1e3a5f 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.mel-login-card {
    background: #fff;
    border-radius: 16px;
    padding: 40px;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 20px 60px rgba(0,0,0,.3);
}

.mel-login-logo { text-align: center; margin-bottom: 28px; }
.mel-login-logo .bi { font-size: 2.5rem; color: var(--mel-primary); }
.mel-login-logo h1 { font-size: 1.4rem; font-weight: 700; margin-top: 8px; }
.mel-login-logo p  { font-size: .85rem; color: var(--mel-text-muted); margin: 0; }

/* ---- Overlay mobile ---- */
.mel-overlay {
    display: none;
    position: fixed; inset: 0;
    background: rgba(0,0,0,.5);
    z-index: 999;
}

/* ---- Responsive ---- */
@media (max-width: 991.98px) {
    .mel-sidebar { transform: translateX(-100%); }
    .mel-sidebar.show { transform: translateX(0); }
    .mel-main { margin-left: 0; }
    .mel-overlay.show { display: block; }
}

/* ---- Utilitários ---- */
.mel-badge-alert { font-size: .7rem; }
.table-actions   { white-space: nowrap; }

.alert-stock { background: #fff7ed; border-color: #fed7aa; }
.alert-empty { background: #fff1f2; border-color: #fecdd3; }

.form-label { font-weight: 600; font-size: .875rem; }
.required::after { content: ' *'; color: var(--mel-danger); }

.mel-estoque-baixo { color: var(--mel-warning); font-weight: 700; }
.mel-estoque-zero  { color: var(--mel-danger);  font-weight: 700; }
.mel-estoque-ok    { color: var(--mel-success);  font-weight: 600; }

/* ---- Print ---- */
@media print {
    .mel-sidebar, .mel-topbar, .mel-footer, .no-print { display: none !important; }
    .mel-main { margin: 0 !important; }
    .mel-content { padding: 0 !important; }
    body { background: #fff; }
}