/* CSS Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Color Palette */
    --singtel-red: #e60000;
    --singtel-dark-red: #cc0000;
    --singtel-blue: #0057a8;
    --singtel-light-blue: #ebf4fc;
    --singtel-orange: #ff6600;
    --singtel-yellow: #ffeb3b;
    --text-dark: #1a1a1a;
    --text-gray: #666;
    --bg-gray: #f5f5f5;
    --border-gray: #e0e0e0;
    --white: #ffffff;
    
    /* Typography */
    --font-primary: 'DM Sans', sans-serif;
    --font-display: 'Playfair Display', serif;
    
    /* Spacing */
    --container-max: 1280px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    
    /* Transitions */
    --transition-base: all 0.3s ease;
    --transition-fast: all 0.15s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 10px 32px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition-base);
    font-family: var(--font-primary);
}

.btn-primary {
    background-color: var(--singtel-red);
    color: var(--white);
}

.btn-primary:hover {
    background-color: var(--singtel-dark-red);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(230, 0, 0, 0.3);
}

.btn-secondary {
    background-color: var(--singtel-red);
    color: var(--white);
}

.btn-secondary:hover {
    background-color: var(--singtel-dark-red);
    transform: translateY(-2px);
}

.icon-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    color: var(--text-dark);
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-btn:hover {
    color: var(--singtel-red);
    transform: scale(1.1);
}

/* Header */
.header {
    position: sticky;
    top: 0;
    background-color: var(--white);
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.header-top {
    background-color: #f9f9f9;
    border-bottom: 1px solid var(--border-gray);
}

.header-top-nav {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-md);
}

.header-top-nav .nav-link {
    padding: 12px 0;
    font-size: 14px;
    color: var(--text-dark);
    text-decoration: none;
    transition: var(--transition-fast);
    font-weight: 500;
}

.header-top-nav .nav-link:hover {
    color: var(--singtel-red);
}

.header-main {
    padding: var(--spacing-sm) 0;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
}

.logo img {
    height: 40px;
    width: auto;
    display: block;
}

.main-nav {
    display: flex;
    gap: var(--spacing-md);
    flex: 1;
    justify-content: center;
}

.main-nav .nav-item {
    color: var(--text-dark);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    padding: 8px 4px;
    transition: var(--transition-fast);
    position: relative;
}

.main-nav .nav-item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--singtel-red);
    transition: width 0.3s ease;
}

.main-nav .nav-item:hover {
    color: var(--singtel-red);
}

.main-nav .nav-item:hover::after {
    width: 100%;
}

.header-actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* Scam Alert */
.scam-alert {
    background-color: #fff9e6;
    border-bottom: 1px solid #ffe082;
    padding: 12px 0;
}

.scam-alert p {
    font-size: 14px;
    color: var(--text-dark);
    text-align: center;
}

.alert-link {
    color: var(--singtel-blue);
    text-decoration: none;
    font-weight: 600;
}

.alert-link:hover {
    text-decoration: underline;
}

/* Hero Carousel */
.hero-carousel {
    position: relative;
    background-color: var(--bg-gray);
    overflow: hidden;
}

.carousel-container {
    position: relative;
    max-width: 100%;
    margin: 0 auto;
    overflow: hidden;
}

.carousel-track {
    display: flex;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    width: 100%;
}

.carousel-slide {
    min-width: 100%;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    position: relative;
    height: 500px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.6s ease, visibility 0.6s ease;
}

.carousel-slide.active {
    opacity: 1;
    visibility: visible;
}

.slide-content {
    position: absolute;
    left: 0;
    top: 0;
    width: 50%;
    height: 100%;
    display: flex;
    align-items: center;
    z-index: 2;
}



.blue-bg .slide-text {
    color: var(--white);
}

.slide-text {
    padding: var(--spacing-xl) var(--spacing-lg);
    animation: slideInLeft 0.8s ease-out;
    padding-left: 200px;
    padding-top: 20px;
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.slide-title {
    font-family: var(--font-display);
    font-size: 40px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--text-dark);
}

.blue-bg .slide-title {
    color: var(--white);
}

.slide-description {
    font-size: 14px;
    margin-bottom: var(--spacing-sm);
    max-width: 500px;
    color: var(--text-gray);
}

.blue-bg .slide-description {
    color: var(--white);
}

.slide-terms {
    font-size: 0.9rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-gray);
}

.blue-bg .slide-terms {
    color: rgba(255, 255, 255, 0.9);
}

.slide-image {
    position: absolute;
    right: 0;
    top: 0;
    width: 60%;
    height: 100%;
    z-index: 1;
}

.slide-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

/* Carousel Controls */
.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: rgba(255, 255, 255, 0.9);
    border: none;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    cursor: pointer;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-base);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.carousel-btn:hover {
    background-color: var(--singtel-red);
    color: var(--white);
    transform: translateY(-50%) scale(1.1);
    box-shadow: 0 6px 20px rgba(230, 0, 0, 0.3);
}

.carousel-btn svg {
    stroke: currentColor;
}

.prev-btn {
    left: 30px;
}

.next-btn {
    right: 30px;
}

/* Carousel Indicators */
.carousel-indicators {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 10;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
    border: 2px solid var(--white);
    cursor: pointer;
    transition: var(--transition-fast);
}

.indicator.active {
    background-color: var(--white);
    transform: scale(1.3);
}

.indicator:hover {
    background-color: rgba(255, 255, 255, 0.8);
}

/* Category Section */
.category-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--white);
}

.section-title {
    font-size: 20px;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--text-dark);
    font-weight: 700;
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.category-card {
    background-color: var(--white);
    border-radius: 16px;
    overflow: hidden;
    text-decoration: none;
    transition: var(--transition-base);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    display: flex;
    flex-direction: column;
}

.category-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.category-card img {
    width: 100%;
    height: auto;
    object-fit: cover;
    display: block;
}

/* CIS Banner */
.cis-banner {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    /* background-color: var(--bg-gray);
    padding: var(--spacing-md); */
    border-radius: 12px;
    margin-top: var(--spacing-lg);
    margin: 0px auto;
    width: 500px;
}

.cis-icon {
    width: 60px;
    height: auto;
}

.cis-text p {
    font-size: 1rem;
    color: var(--text-dark);
    margin-bottom: var(--spacing-xs);
}

.cis-link {
    color: var(--singtel-blue);
    text-decoration: none;
    font-weight: 600;
}

.cis-link:hover {
    text-decoration: underline;
}

/* Huat Section */
.huat-section {
    
}

.huat-bg {
    background-image: url('https://cdn2.singteldigital.com/content/dam/singtel/eshop/Promotions/202601/jan26-homepage-curated-cards-background-01-dt-v2.png');
    background-size: cover;
    background-position: center;
    padding: var(--spacing-xl) 0;
    border-radius: 20px;
}

.carousel-slide1
{
    background-image: url('https://cdn1.singteldigital.com/content/dam/singtel/eshop/Mobile/Banner/res/portin-promo-cny-mobile-springd_desktop-v3.jpg');
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
}

.carousel-slide2
{
    
    background-image: url('https://cdn1.singteldigital.com/content/dam/singtel/eshop/Mobile/Banner/res/31jan26-cny-dt-v1.jpg');
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
}

.carousel-slide3
{
    
    background-image: url('https://cdn2.singteldigital.com/content/dam/singtel/eshop/Mobile/Banner/res/iphone-17-pro-homepage-dt-v1.jpg');
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
}

.carousel-slide2 .slide-title,.carousel-slide2 .slide-text p
{
    color: var(--white);
}

.huat-title {
    /* font-family: var(--font-display); */
    font-size: 2.5rem;
    text-align: center;
    color: var(--white);
    margin-bottom: var(--spacing-md);
    font-weight: 700;
}

.huat-subtitle {
    text-align: center;
    color: var(--white);
    font-size: 1.1rem;
    max-width: 900px;
    margin: 0 auto var(--spacing-lg);
}

.huat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.huat-card {
    background-color: var(--white);
    border-radius: 16px;
    overflow: hidden;
    text-align: center;
    transition: var(--transition-base);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.huat-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.huat-card img {
    width: 100%;
    height: auto;
    object-fit: cover;
}

.huat-card h3 {
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-sm);
    font-size: 16px;
    color: var(--text-dark);
}

.huat-card .btn {
    margin: 0 var(--spacing-md) var(--spacing-md);
}

/* Gadgets Section */
.gadgets-section {
    padding: var(--spacing-xl) 0;
    background-color: #cdd7fc;
}

.section-subtitle {
    text-align: center;
    color: var(--text-gray);
    font-size: 1rem;
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
}

.gadgets-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.gadget-card {
    border-radius: 16px;
    text-align: center;
    padding: 0;
}

.gadget-card img {
    width: 100%;
    height: auto;
    object-fit: contain;
}

/* App Section - CORRECTED: Text on LEFT, image as background */
.app-section {
    /* padding: var(--spacing-xl) 0; */
    background-color: var(--white);
}

.app-bg {
    background-image: url('https://cdn1.singteldigital.com/content/dam/singtel/personal/demo/mobile/msta-new-homescreen-desktop-banner.png');
    background-size: cover;
    background-position: center;
    border-radius: 20px;
    padding: var(--spacing-xl);
    min-height: 500px;
    display: flex;
    align-items: center;
}

.app-content {
    display: flex;
    align-items: center;
    width: 100%;
    padding-left: 190px;
}

.app-text {
    max-width: 500px;
    animation: fadeInUp 0.8s ease-out;
}

.app-text p {
    color: #fff;
    font-size: 14px;
    margin: 15px 0px;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.app-title {
    font-family: var(--font-display);
    font-size: 30px;
    color: var(--white);
    margin-bottom: 0px;
    font-weight: 700;
}

.app-description {
    font-size: 1.1rem;
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

.app-stores {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.store-btn img {
    height: 50px;
    width: auto;
    transition: var(--transition-base);
}

.store-btn:hover img {
    transform: scale(1.05);
}

/* Why Buy Online Section - CORRECTED: Icon on LEFT, text on RIGHT */
.why-buy-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-gray);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.benefit-card {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    text-align: left;
}

.benefit-card img {
    width: 80px;
    height: 80px;
    flex-shrink: 0;
}

.benefit-text {
    flex: 1;
}

.benefit-card h3 {
    font-size: 16px;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

.benefit-card p {
    color: var(--text-gray);
    font-size: 14px;
}

/* Help Section */
.help-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--white);
}

.help-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.help-card {
    text-align: center;
    padding: var(--spacing-md);
    text-decoration: none;
    transition: var(--transition-base);
    border-radius: 12px;
}

.help-card img {
    width: 60px;
    height: 60px;
    margin-bottom: var(--spacing-sm);
}

.help-card h3 {
    font-size: 14px;
    color: var(--text-dark);
    font-weight: 200;
}

/* Footer */
.footer {
    background-color: var(--text-dark);
    color: var(--white);
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.footer-links a {
    color: var(--white);
    text-decoration: none;
    font-size: 0.85rem;
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: var(--singtel-red);
}

.footer-copyright {
    text-align: center;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
}

/* Support Chat Button */
.support-chat {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background-color: var(--white);
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    transition: var(--transition-base);
    z-index: 999;
    padding: 0;
    overflow: hidden;
}

.support-chat:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(0, 0, 0, 0.3);
}

.support-chat img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    animation: fadeIn 0.3s ease;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.modal-content {
    background-color: var(--white);
    border-radius: 20px;
    padding: 40px;
    max-width: 450px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    animation: slideUp 0.4s ease;
    box-shadow: 0 10px 50px rgba(0, 0, 0, 0.3);
}

@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    background: none;
    border: none;
    font-size: 28px;
    cursor: pointer;
    color: var(--text-gray);
    transition: var(--transition-fast);
    width: 35px;
    height: 35px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.modal-close:hover {
    color: var(--singtel-red);
    background-color: #f5f5f5;
}

.modal-header {
    text-align: center;
    margin-bottom: 30px;
}

.modal-header h2 {
    font-size: 28px;
    color: var(--text-dark);
    margin-bottom: 10px;
    font-weight: 700;
}

.modal-header p {
    color: var(--text-gray);
    font-size: 14px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-dark);
    font-weight: 500;
    font-size: 14px;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-gray);
    border-radius: 8px;
    font-size: 15px;
    font-family: var(--font-primary);
    transition: var(--transition-fast);
}

.form-group input:focus {
    outline: none;
    border-color: var(--singtel-red);
    box-shadow: 0 0 0 3px rgba(230, 0, 0, 0.1);
}

.form-group input.error {
    border-color: #dc3545;
}

.form-error {
    color: #dc3545;
    font-size: 12px;
    margin-top: 5px;
    display: none;
}

.form-error.active {
    display: block;
}

.btn-submit {
    width: 100%;
    padding: 14px;
    background-color: var(--singtel-red);
    color: var(--white);
    border: none;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-base);
    margin-top: 10px;
}

.btn-submit:hover:not(:disabled) {
    background-color: var(--singtel-dark-red);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(230, 0, 0, 0.3);
}

.btn-submit:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}

.form-footer {
    text-align: center;
    margin-top: 25px;
    padding-top: 20px;
    border-top: 1px solid var(--border-gray);
}

.form-footer p {
    color: var(--text-gray);
    font-size: 14px;
}

.form-footer a {
    color: var(--singtel-red);
    text-decoration: none;
    font-weight: 600;
    cursor: pointer;
}

.form-footer a:hover {
    text-decoration: underline;
}

/* Success Modal */
.success-modal {
    text-align: center;
    padding: 20px;
}

.success-icon {
    width: 80px;
    height: 80px;
    background-color: #28a745;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    animation: scaleIn 0.5s ease;
}

.success-icon svg {
    width: 50px;
    height: 50px;
    stroke: white;
    stroke-width: 3;
}

@keyframes scaleIn {
    from {
        transform: scale(0);
    }
    to {
        transform: scale(1);
    }
}

.success-modal h2 {
    font-size: 24px;
    color: var(--text-dark);
    margin-bottom: 15px;
    font-weight: 700;
}

.success-modal p {
    color: var(--text-gray);
    font-size: 15px;
    margin-bottom: 25px;
}

.welcome-name {
    color: var(--singtel-red);
    font-weight: 600;
}

/* Password Toggle */
.password-wrapper {
    position: relative;
}

.password-toggle {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    color: var(--text-gray);
    transition: var(--transition-fast);
}

.password-toggle:hover {
    color: var(--singtel-red);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .slide-title {
        font-size: 1.5rem;
    }
    
    .main-nav {
        gap: var(--spacing-sm);
    }
    
  

    .category-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .benefits-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .header-main {
        padding: var(--spacing-sm) 0;
    }
    
    .main-nav {
        display: none;
    }
    
    .slide-content {
        width: 100%;
        position: absolute;
        bottom: 0;
        top: auto;
        height: auto;
    }
    
    .slide-text {
        padding: var(--spacing-md);
    }
    
    .slide-title {
        font-size: 1.5rem;
    }
    
    .slide-image {
        width: 100%;
    }
    
 
    
    .carousel-btn {
        width: 50px;
        height: 50px;
    }
    
    .prev-btn {
        left: 15px;
    }
    
    .next-btn {
        right: 15px;
    }
    
    .category-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .huat-title {
        font-size: 2rem;
    }
    
    .app-title {
        font-size: 2rem;
    }

    .benefits-grid {
        grid-template-columns: 1fr;
    }

    .benefit-card {
        flex-direction: column;
        text-align: center;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .slide-title {
        font-size: 1.5rem;
    }
    
    .slide-description {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .huat-grid,
    .gadgets-grid {
        grid-template-columns: 1fr;
    }

    .category-grid {
        grid-template-columns: 1fr;
    }
    
    .support-chat {
        width: 60px;
        height: 60px;
        bottom: 20px;
        right: 20px;
    }
}