/* --- style.css (VERSIÓN FINAL Y COMPLETA) --- */

:root {
    --bg-color: #f4f7f9;
    --surface-color: #ffffff;
    --primary-color: #5e72e4;
    --secondary-color: #324cdd;
    --success-color: #2dce89;
    --danger-color: #f5365c;
    --text-color: #525f7f;
    --text-color-light: #8898aa;
    --border-color: #e9ecef;
    --header-bg: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    --main-font: 'Poppins', sans-serif;
    --border-radius-lg: 12px;
    --border-radius-sm: 8px;
    --shadow-soft: 0 4px 6px rgba(50, 50, 93, 0.11), 0 1px 3px rgba(0, 0, 0, 0.08);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: var(--main-font); background-color: var(--bg-color); color: var(--text-color); line-height: 1.6; font-weight: 400; }
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 20px; }
.header { background: var(--header-bg); color: white; padding: 25px 0; margin-bottom: 30px; border-radius: var(--border-radius-lg); box-shadow: var(--shadow-soft); }
.header-content { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; padding: 0 20px; }
.header h1 { color: white; margin: 0; font-weight: 700; letter-spacing: 0.5px; }
.logo i { font-size: 2.5rem; }
.card { background-color: var(--surface-color); border-radius: var(--border-radius-lg); box-shadow: var(--shadow-soft); border: 1px solid var(--border-color); transition: all 0.3s ease; }
.card:hover { transform: translateY(-5px); }
.card-header { padding: 20px 25px; background-color: transparent; border-bottom: 1px solid var(--border-color); }
.card-header h2 { font-size: 1.1rem; font-weight: 600; margin: 0; }
.card-body { padding: 25px; }
.tabs { display: flex; flex-wrap: wrap; margin-bottom: 30px; border-bottom: 1px solid var(--border-color); }
.tab-link { padding: 12px 20px; cursor: pointer; text-decoration: none; color: var(--text-color-light); font-weight: 600; border-bottom: 3px solid transparent; transition: all 0.3s ease; }
.tab-link:hover { color: var(--primary-color); }
.tab-link.active { color: var(--primary-color); border-bottom-color: var(--primary-color); }
.product-count { background-color: #e9ecef; color: var(--text-color-light); padding: 2px 8px; border-radius: 50px; font-size: 12px; font-weight: 600; margin-left: 8px; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 15px; text-align: left; border-bottom: 1px solid var(--border-color); }
th { font-weight: 600; font-size: 0.8rem; text-transform: uppercase; color: var(--text-color-light); }
tbody tr:last-child td { border-bottom: none; }
.form-group { margin-bottom: 15px; }
.form-group label { display: block; margin-bottom: 5px; font-weight: 600; font-size: 0.9rem; }
.form-group input, .form-group select { width: 100%; padding: 12px; border: 1px solid var(--border-color); border-radius: var(--border-radius-sm); font-family: var(--main-font); transition: all 0.2s ease; }
.form-group input:focus, .form-group select:focus { border-color: var(--primary-color); box-shadow: 0 0 0 2px rgba(94, 114, 228, 0.25); outline: none; }
.btn { padding: 12px 24px; border: none; border-radius: var(--border-radius-sm); cursor: pointer; font-weight: 600; font-size: 14px; font-family: var(--main-font); text-transform: uppercase; letter-spacing: 0.5px; transition: all 0.2s ease-in-out; }
.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-soft); }
.btn-primary { background-color: var(--primary-color); color: white; }
.btn-success { background-color: var(--success-color); color: white; }
.btn-danger { background-color: var(--danger-color); color: white; }
.stock-control { display: flex; align-items: center; justify-content: center; gap: 10px; }
.stock-input { width: 70px; text-align: center; padding: 8px; font-size: 1.2rem; font-weight: 600; border: 1px solid var(--border-color); border-radius: var(--border-radius-sm); -moz-appearance: textfield; }
.stock-input::-webkit-outer-spin-button, .stock-input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.btn-control { width: 40px; height: 40px; padding: 0; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; box-shadow: var(--shadow-soft); }
.grid { display: grid; grid-template-columns: 1fr; gap: 30px; }
.form-section-bottom { display: grid; grid-template-columns: repeat(auto-fit, minmax(400px, 1fr)); gap: 30px; margin-top: 30px; padding-top: 30px; border-top: 1px solid var(--border-color); }
.alert { padding: 15px; margin-bottom: 20px; border-radius: var(--border-radius-sm); font-weight: 500; border-left: 4px solid; }
.alert-success { background-color: #d1fae5; color: #065f46; border-color: #10b981; }
.alert-error { background-color: #fee2e2; color: #991b1b; border-color: #ef4444; }

/* ESTOS ESTILOS HACEN VISIBLE EL CARTEL DE NOTIFICACIÓN */
.notificacion { position: fixed; bottom: 20px; right: 20px; padding: 15px 25px; border-radius: var(--border-radius-sm); font-weight: bold; color: white; box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2); z-index: 1000; opacity: 0; transform: translateY(20px); transition: all 0.3s ease-out; }
.notificacion.exito { background-color: var(--success-color); }
.notificacion.error { background-color: var(--danger-color); }
.notificacion.ocultar { opacity: 0; transform: translateY(20px); }