:root {
    --primary-color: #4e73df;
    --secondary-color: #6c757d;
    --success-color: #1cc88a;
    --info-color: #36b9cc;
    --warning-color: #f6c23e;
    --danger-color: #e74a3b;
    --light-color: #f8f9fc;
    --dark-color: #5a5c69;
    --body-bg: #f8f9fa;
    --card-shadow: 0 0.15rem 1.75rem 0 rgba(58, 59, 69, 0.15);
    --transition-fast: 0.3s;
    --transition-medium: 0.5s;
    --transition-slow: 0.8s;
    --bounce: cubic-bezier(0.68, -0.55, 0.27, 1.55);
    --smooth: cubic-bezier(0.4, 0, 0.2, 1);
    --in-out: cubic-bezier(0.45, 0, 0.55, 1);
}


.page-transition {
    animation: pageFadeIn 0.8s var(--smooth);
}

@keyframes pageFadeIn {
    0% {
        opacity: 0;
        transform: translateY(20px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

body {
    font-family: 'Nunito', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--body-bg);
    padding-top: 76px; 
    overflow-x: hidden; 
    animation: pageLoad 1s var(--smooth) forwards;
}

@keyframes pageLoad {
    0% {
        opacity: 0;
    }
    100% {
        opacity: 1;
    }
}


.fade-in {
    animation: fadeIn var(--transition-medium) ease-in;
}

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

.fade-in-up {
    animation: fadeInUp var(--transition-medium) var(--smooth) forwards;
}

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

.fade-in-left {
    animation: fadeInLeft var(--transition-medium) var(--smooth) forwards;
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.fade-in-right {
    animation: fadeInRight var(--transition-medium) var(--smooth) forwards;
}

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

.scale-in {
    animation: scaleIn var(--transition-medium) var(--bounce) forwards;
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}


.stagger-fade-in > * {
    opacity: 0;
}

.stagger-fade-in > *:nth-child(1) {
    animation: fadeIn var(--transition-medium) forwards;
    animation-delay: 0.1s;
}

.stagger-fade-in > *:nth-child(2) {
    animation: fadeIn var(--transition-medium) forwards;
    animation-delay: 0.2s;
}

.stagger-fade-in > *:nth-child(3) {
    animation: fadeIn var(--transition-medium) forwards;
    animation-delay: 0.3s;
}

.stagger-fade-in > *:nth-child(4) {
    animation: fadeIn var(--transition-medium) forwards;
    animation-delay: 0.4s;
}

.stagger-fade-in > *:nth-child(5) {
    animation: fadeIn var(--transition-medium) forwards;
    animation-delay: 0.5s;
}

.stagger-fade-in > *:nth-child(n+6) {
    animation: fadeIn var(--transition-medium) forwards;
    animation-delay: 0.6s;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    position: relative;
    overflow: hidden;
}

.navbar-brand::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width var(--transition-medium) var(--smooth);
}

.navbar-brand:hover::after {
    width: 100%;
}

.nav-item {
    position: relative;
    overflow: hidden;
}

.nav-link {
    transition: color var(--transition-fast) ease, transform var(--transition-fast) ease;
}

.nav-link:hover {
    transform: translateY(-2px);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width var(--transition-medium) var(--smooth), left var(--transition-medium) var(--smooth);
}

.nav-link:hover::after {
    width: 100%;
    left: 0;
}


.btn {
    overflow: hidden;
    position: relative;
    z-index: 1;
    transition: color var(--transition-fast), background-color var(--transition-fast), transform var(--transition-fast) var(--bounce);
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 7px 14px rgba(50, 50, 93, 0.1), 0 3px 6px rgba(0, 0, 0, 0.08);
}

.btn:active {
    transform: translateY(-1px);
}

.btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 10px;
    height: 10px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transform: scale(0);
    opacity: 0;
    z-index: -1;
}

.btn:focus::after {
    animation: ripple 0.6s var(--smooth);
}

@keyframes ripple {
    0% {
        transform: translate(-50%, -50%) scale(0);
        opacity: 1;
    }
    100% {
        transform: translate(-50%, -50%) scale(20);
        opacity: 0;
    }
}

/* Hero Section */
.hero-section {
    background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), url('../img/hero-bg.jpg') no-repeat center center;
    background-size: cover;
    height: 500px;
    display: flex;
    align-items: center;
    color: white;
    margin-bottom: 2rem;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, transparent, rgba(255, 255, 255, 0.2), transparent);
    animation: shine 8s infinite;
    transform: skewX(-25deg);
}

@keyframes shine {
    0% {
        left: -100%;
    }
    20%, 100% {
        left: 100%;
    }
}

.hero-section h1 {
    animation: slideFromBottom 1s var(--bounce) forwards;
    opacity: 0;
}

.hero-section p {
    animation: slideFromBottom 1s var(--bounce) forwards;
    animation-delay: 0.2s;
    opacity: 0;
}

.hero-section .btn {
    animation: slideFromBottom 1s var(--bounce) forwards;
    animation-delay: 0.4s;
    opacity: 0;
}

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


.category-card {
    transition: transform var(--transition-medium) var(--bounce), box-shadow var(--transition-medium) ease;
    border: none;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    position: relative;
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(120deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transform: translateX(-100%);
}

.category-card:hover::before {
    animation: shine 1.5s;
}

.category-card:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.category-card i {
    transition: transform var(--transition-medium) var(--bounce);
}

.category-card:hover i {
    transform: scale(1.2);
}

.category-card .card-title {
    position: relative;
    display: inline-block;
}

.category-card .card-title::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width var(--transition-medium) var(--smooth);
}

.category-card:hover .card-title::after {
    width: 100%;
}

.login-section, .register-section {
    min-height: calc(100vh - 76px);
    display: flex;
    align-items: center;
    padding-top: 2rem;
    padding-bottom: 2rem;
    background: linear-gradient(rgba(0, 0, 0, 0.02), rgba(0, 0, 0, 0.02));
    position: relative;
    overflow: hidden;
}

.login-section::before, .register-section::before {
    content: '';
    position: absolute;
    width: 200%;
    height: 200%;
    top: -50%;
    left: -50%;
    background: radial-gradient(rgba(255, 255, 255, 0.8), transparent);
    animation: rotate 30s linear infinite;
    z-index: -1;
}

@keyframes rotate {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

.products-section {
    padding-top: 2rem;
}

.product-card {
    transition: all var(--transition-medium) var(--bounce);
    height: 100%;
    border: none;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    position: relative;
    z-index: 1;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, transparent 0%, transparent 50%, rgba(78, 115, 223, 0.1) 100%);
    transform: scale(1.15);
    transition: all var(--transition-medium) var(--smooth);
    z-index: -1;
}

.product-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 30px rgba(0, 0, 0, 0.1);
}

.product-card:hover::before {
    transform: scale(1);
}

.product-image {
    height: 200px;
    object-fit: cover;
    transition: all var(--transition-medium) var(--smooth);
}

.product-card:hover .product-image {
    transform: scale(1.1);
}

.product-card .card-footer {
    background-color: transparent;
    border-top: none;
    transition: background-color var(--transition-medium) ease;
}

.product-card:hover .card-footer {
    background-color: rgba(0, 0, 0, 0.02);
}

.favorite-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    background-color: white;
    border-radius: 50%;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    transition: all var(--transition-medium) var(--bounce);
    transform-origin: center;
    z-index: 2;
}

.favorite-btn:hover {
    transform: scale(1.2);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.favorite-btn.active {
    color: var(--danger-color);
    animation: heartBeat 0.8s var(--bounce);
}

@keyframes heartBeat {
    0% {
        transform: scale(1);
    }
    14% {
        transform: scale(1.3);
    }
    28% {
        transform: scale(1);
    }
    42% {
        transform: scale(1.3);
    }
    70% {
        transform: scale(1);
    }
}

.cart-section {
    padding-top: 2rem;
}

.cart-item-img {
    width: 80px;
    height: 80px;
    object-fit: cover;
    transition: transform var(--transition-medium) var(--bounce);
}

.cart-item-img:hover {
    transform: scale(1.1);
}

table tr {
    transition: background-color var(--transition-fast) ease, transform var(--transition-fast) var(--smooth);
}

table tr:hover {
    background-color: rgba(0, 0, 0, 0.02);
    transform: scale(1.01) translateX(5px);
}


.checkout-section {
    padding-top: 2rem;
}

.checkout-steps {
    margin-bottom: 2rem;
    position: relative;
}

.step {
    padding: 1rem;
    text-align: center;
    position: relative;
    transition: all var(--transition-medium) var(--smooth);
}

.step:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 50%;
    right: -50%;
    width: 100%;
    height: 2px;
    background-color: #e9ecef;
    z-index: -1;
    transition: background-color var(--transition-medium) ease;
}

.step.active:not(:last-child)::after {
    background-color: var(--primary-color);
    animation: progressLine 1s linear forwards;
}

@keyframes progressLine {
    from {
        width: 0;
    }
    to {
        width: 100%;
    }
}

.step.active {
    transform: scale(1.05);
}

.step.active .step-icon {
    background-color: var(--primary-color);
    color: white;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(78, 115, 223, 0.5);
    }
    70% {
        box-shadow: 0 0 0 15px rgba(78, 115, 223, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(78, 115, 223, 0);
    }
}

.step-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: #e9ecef;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.5rem;
    color: var(--secondary-color);
    transition: all var(--transition-medium) var(--bounce);
}

.step:hover .step-icon {
    transform: scale(1.1) rotate(5deg);
}

.step.active .step-text {
    font-weight: bold;
    color: var(--primary-color);
}

/* Enhanced Favorites Page */
.favorites-section {
    padding-top: 2rem;
}


.scroll-fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-medium) ease, transform var(--transition-medium) var(--smooth);
}

.scroll-fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.animated-text {
    display: inline-block;
    position: relative;
}

.animated-text::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-color);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-medium) var(--smooth);
}

.animated-text:hover::after {
    transform: scaleX(1);
}


.form-control, .form-select {
    transition: border-color var(--transition-fast) ease, box-shadow var(--transition-fast) ease, transform var(--transition-fast) ease;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(78, 115, 223, 0.25);
    transform: translateY(-1px);
}

@media (max-width: 768px) {
    .hero-section {
        height: 400px;
    }
    
    .step:not(:last-child)::after {
        display: none;
    }
    
    .step {
        margin-bottom: 1rem;
    }
}
.cursor-pointer {
    cursor: pointer;
    transition: transform var(--transition-fast) ease;
}

.cursor-pointer:hover {
    transform: scale(1.05);
}

.text-truncate-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}


.toast {
    position: fixed;
    bottom: 20px;
    right: 20px;
    min-width: 250px;
    z-index: 1050;
    animation: slideInRight var(--transition-medium) var(--bounce) forwards;
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.toast.hide {
    animation: slideOutRight var(--transition-medium) var(--bounce) forwards;
}

@keyframes slideOutRight {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(100%);
        opacity: 0;
    }
}

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    -webkit-backdrop-filter: blur(5px);
    backdrop-filter: blur(5px);
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    border: 6px solid rgba(78, 115, 223, 0.2);
    border-top-color: var(--primary-color);
    animation: spinner 1s infinite linear;
}

@keyframes spinner {
    to {
        transform: rotate(360deg);
    }
}

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 4px;
    transition: background var(--transition-fast) ease;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

.float-animation {
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
    100% {
        transform: translateY(0);
    }
}

.img-hover-zoom {
    overflow: hidden;
}

.img-hover-zoom img {
    transition: transform var(--transition-medium) var(--smooth);
}

.img-hover-zoom:hover img {
    transform: scale(1.1);
}


.btn-glow:hover {
    box-shadow: 0 0 15px var(--primary-color);
}


.card-rotate {
    perspective: 1000px;
}

.card-rotate:hover .card-inner {
    transform: rotateY(10deg);
}

.card-inner {
    transition: transform var(--transition-medium) var(--smooth);
}

.shimmer {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}


.text-shadow-hover:hover {
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.gradient-animation {
    background: linear-gradient(-45deg, #ee7752, #e73c7e, #23a6d5, #23d5ab);
    background-size: 400% 400%;
    animation: gradient 15s ease infinite;
}

@keyframes gradient {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

.border-grow {
    position: relative;
}

.border-grow::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background-color: var(--primary-color);
    transform: scaleX(0);
    transform-origin: bottom right;
    transition: transform var(--transition-medium) var(--smooth);
}

.border-grow:hover::after {
    transform: scaleX(1);
    transform-origin: bottom left;
}

.check-animation .check-mark {
    stroke-dasharray: 100;
    stroke-dashoffset: 100;
    animation: drawCheck 1s forwards;
}

@keyframes drawCheck {
    to {
        stroke-dashoffset: 0;
    }
}

.shake {
    animation: shake 0.82s cubic-bezier(.36,.07,.19,.97) both;
}

@keyframes shake {
    10%, 90% {
        transform: translate3d(-1px, 0, 0);
    }
    20%, 80% {
        transform: translate3d(2px, 0, 0);
    }
    30%, 50%, 70% {
        transform: translate3d(-4px, 0, 0);
    }
    40%, 60% {
        transform: translate3d(4px, 0, 0);
    }
} 

.carousel-indicators {
    position: absolute;
    bottom: 5px; 
    left: 33%;
    transform: translateX(-50%);
    display: flex;
    gap: 5px;
}

.carousel-indicators span {
    width: 2px; 
    height: 4px;
    background-color: rgba(255, 255, 255, 0.6); 
    border-radius: 100%;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.2s;
}

.carousel-indicators .active {
    background-color: white; 
    transform: scale(1.2); 
}