:root {
    --primary-gradient: linear-gradient(135deg, #fdfbfb 0%, #ebedee 100%); /* Fallback */
    --pink-pastel-gradient: linear-gradient(90deg, #FF9A9E 0%, #FECFEF 99%, #FECFEF 100%);
    --pink-deep: #ff758c;
    --text-dark: #333;
    --white: #ffffff;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f8f9fa;
    color: var(--text-dark);
}

/* Header & Banner */
.main-header {
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.hero-banner {
    background: var(--pink-pastel-gradient);
    padding: 60px 0;
    text-align: center;
    color: var(--white);
    border-bottom-right-radius: 50px;
    border-bottom-left-radius: 50px;
}

.hero-title {
    font-weight: 700;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.1);
}

/* Custom Button */
.btn-check-warranty {
    background: var(--pink-deep);
    border: none;
    color: white;
    padding: 10px 30px;
    border-radius: 25px;
    transition: all 0.3s;
    font-weight: 600;
}

.btn-check-warranty:hover {
    background: #ff5e78;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 117, 140, 0.4);
}

/* Modal Styling */
.modal-header {
    background: var(--pink-pastel-gradient);
    color: white;
    border: none;
}

/* Ép Modal luôn nằm trên cùng, cao hơn cả SweetAlert cũ */
.modal {
    z-index: 1055 !important;
}
.modal-backdrop {
    z-index: 1050 !important;
}
/* Đảm bảo SweetAlert nằm trên Modal khi nó hiện ra */
.swal2-container {
    z-index: 2000 !important;
}