/* ============================================================
   Sistema de Control de Almacén - Estilos
   Paleta por defecto: institucional (burdeos / dorado).
   Cambia las variables --primary / --accent si no aplica.
   ============================================================ */

:root {
    --primary: #1B284F;
    --primary-dark: #54595F;
    --accent: #61CE70;
    --bg: #f4f5f7;
    --card-bg: #ffffff;
    --text: #7A7A7A;
    --text-muted: #6b7280;
    --success: #2e7d32;
    --danger: #c62828;
    --warning: #b8860b;
    --border: #e2e2e2;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: 'Segoe UI', Roboto, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
}

a { color: var(--primary); text-decoration: none; }

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--primary);
    color: #fff;
    padding: 0.75rem 1.5rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.navbar-brand { font-weight: 700; font-size: 1.1rem; }

.navbar-links { display: flex; gap: 1rem; flex-wrap: wrap; }
.navbar-links a { color: #f5e7ec; font-size: 0.92rem; }
.navbar-links a:hover { color: var(--accent); }

.navbar-user { display: flex; align-items: center; gap: 0.75rem; font-size: 0.9rem; }
.btn-logout {
    background: var(--accent);
    color: var(--primary-dark);
    padding: 0.35rem 0.75rem;
    border-radius: 4px;
    font-weight: 600;
}

.container { max-width: 1200px; margin: 1.5rem auto; padding: 0 1.5rem; }

.page-title { font-size: 1.5rem; margin-bottom: 1rem; color: var(--primary-dark); }

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

.kpi-card {
    background: var(--card-bg);
    border-radius: 8px;
    padding: 1rem 1.25rem;
    border-left: 5px solid var(--primary);
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}
.kpi-card.warning { border-left-color: var(--warning); }
.kpi-card .kpi-label { font-size: 0.8rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.03em; }
.kpi-card .kpi-value { font-size: 1.6rem; font-weight: 700; color: var(--primary-dark); margin-top: 0.25rem; }

.card {
    background: var(--card-bg);
    border-radius: 8px;
    padding: 1.25rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
    margin-bottom: 1.5rem;
}

table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
th, td { padding: 0.6rem 0.7rem; border-bottom: 1px solid var(--border); text-align: left; }
th { background: #faf4f6; color: var(--primary-dark); font-weight: 600; }
tr:hover td { background: #fafafa; }

.badge { display: inline-block; padding: 0.2rem 0.55rem; border-radius: 12px; font-size: 0.78rem; font-weight: 600; }
.badge-success { background: #e6f4ea; color: var(--success); }
.badge-danger { background: #fdecea; color: var(--danger); }
.badge-warning { background: #fdf3dc; color: var(--warning); }
.badge-muted { background: #eee; color: var(--text-muted); }

form label { display: block; font-size: 0.85rem; font-weight: 600; margin-bottom: 0.25rem; margin-top: 0.75rem; }
input, select, textarea {
    width: 100%;
    padding: 0.5rem 0.6rem;
    border: 1px solid var(--border);
    border-radius: 5px;
    font-size: 0.95rem;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary); }

.btn {
    display: inline-block;
    padding: 0.55rem 1.1rem;
    border-radius: 5px;
    border: none;
    background: var(--primary);
    color: #fff;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    margin-top: 1rem;
}
.btn:hover { background: var(--primary-dark); }
.btn-secondary { background: #6b7280; }
.btn-danger { background: var(--danger); }
.btn-sm { padding: 0.3rem 0.65rem; font-size: 0.8rem; margin-top: 0; }

.filters { display: flex; gap: 0.75rem; flex-wrap: wrap; align-items: flex-end; margin-bottom: 1rem; }
.filters > div { flex: 1; min-width: 150px; }

.alert { padding: 0.75rem 1rem; border-radius: 6px; margin-bottom: 1rem; font-size: 0.9rem; }
.alert-error { background: #fdecea; color: var(--danger); border: 1px solid #f5c6cb; }
.alert-success { background: #e6f4ea; color: var(--success); border: 1px solid #c3e6cb; }
.alert-info { background: #eaf1fb; color: #1a5490; border: 1px solid #cfe2f3; }

.footer { text-align: center; padding: 1.5rem; color: var(--text-muted); font-size: 0.8rem; }

.login-wrapper {
    display: flex; align-items: center; justify-content: center;
    min-height: 100vh; background: linear-gradient(135deg, var(--primary), var(--primary-dark));
}
.login-box {
    background: #fff; padding: 2.5rem; border-radius: 10px; width: 100%; max-width: 380px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}
.login-box h1 { color: var(--primary-dark); font-size: 1.3rem; margin-bottom: 1.5rem; text-align: center; }

.text-muted { color: var(--text-muted); }
.text-right { text-align: right; }
.mt-0 { margin-top: 0; }