/* ==============================================
   STEPVIBE - E-COMMERCE DE CALÇADOS MODERNOS
   Paleta: Laranja Queimado, Azul Royal, Verde Lima,
           Preto Grafite, Branco Puro
   ============================================== */

/* === RESET E CONFIGURAÇÕES BÁSICAS === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

*:focus,
*:active,
*:focus-visible {
    outline: none !important;
}

button,
a,
input,
select,
textarea,
[type="button"],
[type="submit"],
[type="reset"] {
    outline: none !important;
    -webkit-tap-highlight-color: transparent;
}

button:focus,
button:active,
button:focus-visible,
a:focus,
a:active,
a:focus-visible,
input:focus,
input:active,
select:focus,
textarea:focus {
    outline: none !important;
}

:root {
    /* Cores Principais */
    --primary-orange: #E85A23;
    --primary-blue: #2C5AA0;
    --primary-lime: #A8E624;
    --dark-graphite: #2A2A2A;
    --pure-white: #FFFFFF;
    
    /* Cores Complementares */
    --orange-light: #FF7043;
    --blue-light: #4A90E2;
    --lime-light: #C5F742;
    --gray-light: #F5F5F5;
    --gray-medium: #CCCCCC;
    --gray-dark: #666666;
    
    /* Tipografia */
    --font-primary: 'Poppins', sans-serif;
    --font-secondary: 'Inter', sans-serif;
    
    /* Tamanhos */
    --max-width: 1200px;
    --border-radius: 12px;
    --border-radius-lg: 20px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.15);
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-secondary);
    line-height: 1.6;
    color: var(--dark-graphite);
    background-color: var(--pure-white);
    overflow-x: hidden;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* === TIPOGRAFIA === */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }

p {
    margin-bottom: 1rem;
    font-weight: 400;
}

/* === BOTÕES === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: var(--border-radius);
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    white-space: nowrap;
    outline: none;
}

.btn:focus {
    outline: none;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.5s ease;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-orange), var(--orange-light));
    color: var(--pure-white);
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.btn-primary:active {
    background: linear-gradient(135deg, var(--primary-orange), var(--orange-light));
    transform: translateY(0);
    box-shadow: var(--shadow);
}

.btn-primary:focus {
    background: linear-gradient(135deg, var(--primary-orange), var(--orange-light));
    transform: translateY(0);
    box-shadow: var(--shadow);
}

.btn-primary:focus:not(:hover) {
    transform: translateY(0);
}

.btn-secondary {
    background: var(--pure-white);
    color: var(--dark-graphite);
    border: 2px solid var(--primary-blue);
    box-shadow: var(--shadow);
}

.btn-secondary:hover {
    background: var(--primary-blue);
    color: var(--pure-white);
    transform: translateY(-2px);
}

.btn-secondary:active {
    background: var(--pure-white);
    color: var(--dark-graphite);
    transform: translateY(0);
    border: 2px solid var(--primary-blue);
}

.btn-secondary:focus {
    background: var(--pure-white);
    color: var(--dark-graphite);
    transform: translateY(0);
    border: 2px solid var(--primary-blue);
}

.btn-secondary:focus:not(:hover) {
    transform: translateY(0);
}

.btn-outline {
    background: transparent;
    color: var(--primary-orange);
    border: 2px solid var(--primary-orange);
}

.btn-outline:hover {
    background: var(--primary-orange);
    color: var(--pure-white);
    transform: translateY(-2px);
}

/* === HEADER E NAVEGAÇÃO === */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--gray-light);
    transition: var(--transition);
}

.navbar {
    padding: 1rem 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

.nav-logo h1 {
    font-size: 2rem;
    font-weight: 800;
    color: var(--dark-graphite);
    margin: 0;
}

.nav-logo span {
    color: var(--primary-orange);
}

.nav-menu {
    display: flex;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--dark-graphite);
    font-weight: 500;
    position: relative;
    transition: var(--transition);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--primary-orange);
    transition: width 0.3s ease;
}

.nav-link:hover {
    color: var(--primary-orange);
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.search-btn, .cart-btn, .account-btn {
    background: var(--gray-light);
    border: none;
    padding: 10px;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    outline: none;
}

.search-btn:focus, .cart-btn:focus, .account-btn:focus {
    outline: none;
}

.cart-btn {
    position: relative;
}

.cart-count {
    position: absolute;
    top: -5px;
    right: -5px;
    background: var(--primary-orange);
    color: var(--pure-white);
    border-radius: 50%;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
}

.search-btn:hover, .cart-btn:hover, .account-btn:hover {
    background: var(--primary-blue);
    color: var(--pure-white);
    transform: scale(1.1);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    gap: 4px;
    outline: none;
}

.menu-toggle:focus {
    outline: none;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--dark-graphite);
    transition: var(--transition);
}

/* === SEARCH MODAL === */
.search-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(42, 42, 42, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.search-modal.active {
    opacity: 1;
    visibility: visible;
}

.search-container {
    background: var(--pure-white);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    width: 90%;
    max-width: 500px;
    position: relative;
}

.search-input {
    width: 100%;
    padding: 1rem;
    font-size: 1.2rem;
    border: 2px solid var(--gray-light);
    border-radius: var(--border-radius);
    outline: none;
    transition: var(--transition);
}

.search-input:focus {
    border-color: var(--primary-orange);
}

.search-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--gray-dark);
}

/* === HERO SECTION === */
.hero {
    background: linear-gradient(135deg, var(--pure-white) 0%, var(--gray-light) 100%);
    padding: 120px 0 80px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: linear-gradient(45deg, var(--primary-blue), var(--blue-light));
    clip-path: polygon(20% 0%, 100% 0%, 100% 100%, 0% 100%);
    opacity: 0.1;
}

.hero-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.highlight {
    background: linear-gradient(135deg, var(--primary-orange), var(--orange-light));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    position: relative;
}

.hero-description {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: var(--gray-dark);
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-image {
    position: relative;
    display: flex;
    justify-content: center;
}

.hero-shoe-container {
    position: relative;
}

.hero-shoe {
    width: 100%;
    max-width: 600px;
    height: auto;
}

/* === FEATURES SECTION === */
.features {
    padding: 80px 0;
    background: var(--pure-white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.feature-card {
    text-align: center;
    padding: 2rem 1.5rem;
    border-radius: var(--border-radius);
    background: var(--pure-white);
    transition: var(--transition);
    border: 2px solid transparent;
}

.feature-card:hover {
    border-color: var(--primary-orange);
    transform: translateY(-5px);
}

.feature-card:nth-child(1) .feature-icon,
.feature-card:nth-child(2) .feature-icon,
.feature-card:nth-child(3) .feature-icon {
    background: transparent;
    color: var(--primary-orange);
}

.feature-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 2rem;
}

.feature-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.feature-card p {
    font-size: 0.95rem;
    color: var(--gray-dark);
    margin: 0;
    line-height: 1.5;
}

/* === SECTIONS GERAIS === */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.section-title span {
    color: var(--primary-orange);
}

.section-description {
    font-size: 1.1rem;
    color: var(--gray-dark);
    max-width: 600px;
    margin: 0 auto;
}

/* === PRODUCTS SECTION === */
.products {
    padding: 80px 0;
    background: var(--gray-light);
}

.filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 20px;
    background: var(--pure-white);
    border: 2px solid var(--gray-medium);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
    outline: none;
}

.filter-btn:focus {
    outline: none;
}

.filter-btn.active,
.filter-btn:hover {
    background: var(--primary-orange);
    color: var(--pure-white);
    border-color: var(--primary-orange);
    transform: translateY(-2px);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.product-card {
    background: var(--pure-white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.6s ease forwards;
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.product-image {
    position: relative;
    overflow: hidden;
    height: 200px;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

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

.product-badge {
    position: absolute;
    top: 15px;
    left: 15px;
    background: var(--primary-lime);
    color: var(--dark-graphite);
    padding: 5px 10px;
    border-radius: var(--border-radius);
    font-size: 0.8rem;
    font-weight: 600;
}

.product-actions {
    position: absolute;
    top: 15px;
    right: 15px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    opacity: 0;
    transition: var(--transition);
}

.product-card:hover .product-actions {
    opacity: 1;
}

.product-action-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: none;
    background: var(--pure-white);
    color: var(--dark-graphite);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow);
    outline: none;
}

.product-action-btn:focus {
    outline: none;
}

.product-action-btn:hover {
    background: var(--primary-orange);
    color: var(--pure-white);
    transform: scale(1.1);
}

.product-info {
    padding: 1rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.product-brand {
    color: var(--gray-dark);
    font-size: 0.75rem;
    margin-bottom: 0.25rem;
}

.product-name {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.product-price {
    display: flex;
    flex-direction: column;
    gap: 3px;
    margin-bottom: 0.75rem;
}

.price-current {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary-orange);
}

.price-old {
    font-size: 0.8rem;
    color: var(--gray-dark);
    text-decoration: line-through;
}

.product-rating {
    display: flex;
    align-items: center;
    gap: 5px;
    margin-bottom: auto;
}

.stars {
    color: #FFD700;
    font-size: 0.85rem;
}

.rating-text {
    font-size: 0.75rem;
    color: var(--gray-dark);
}

.add-to-cart {
    width: 100%;
    padding: 10px;
    background: var(--dark-graphite);
    color: var(--pure-white);
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
    margin-top: 0.75rem;
}

.add-to-cart:hover {
    background: var(--primary-orange);
    transform: translateY(-2px);
}

.add-to-cart:active {
    background: var(--dark-graphite) !important;
    transform: translateY(0);
}

.add-to-cart:focus {
    background: var(--dark-graphite) !important;
    transform: translateY(0);
}

.add-to-cart:focus:not(:hover) {
    background: var(--dark-graphite) !important;
    transform: translateY(0);
}

.products-actions {
    text-align: center;
}

/* === COLLECTIONS SECTION === */
.collections {
    padding: 80px 0;
    background: var(--pure-white);
}

.collections-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.collection-card {
    position: relative;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    min-height: 400px;
}

.collection-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.collection-image {
    width: 100%;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.collection-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.collection-card:hover .collection-image img {
    transform: scale(1.05);
}

.collection-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: var(--pure-white);
    padding: 2rem;
    text-align: center;
}

.collection-content h3 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.collection-content p {
    margin-bottom: 1rem;
    opacity: 0.9;
}

/* === NEWSLETTER SECTION === */
.newsletter {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--dark-graphite), var(--primary-blue));
    color: var(--pure-white);
}

.newsletter-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.newsletter-text h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.newsletter-text span {
    color: var(--primary-orange);
}

.input-group {
    display: flex;
    gap: 1rem;
}

.input-group input {
    flex: 1;
    padding: 1rem;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius);
    background: rgba(255, 255, 255, 0.1);
    color: var(--pure-white);
    font-size: 1rem;
    outline: none;
    transition: var(--transition);
}

.input-group input::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.input-group input:focus {
    border-color: var(--primary-orange);
}

/* === FOOTER === */
.footer {
    background: var(--dark-graphite);
    color: var(--pure-white);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-brand h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.footer-brand span {
    color: var(--primary-orange);
}

.footer-brand p {
    margin-bottom: 2rem;
    opacity: 0.8;
    line-height: 1.6;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 45px;
    height: 45px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--pure-white);
    text-decoration: none;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary-orange);
    transform: translateY(-3px);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.footer-column h4 {
    margin-bottom: 1rem;
    color: var(--primary-orange);
}

.footer-column ul {
    list-style: none;
}

.footer-column li {
    margin-bottom: 0.5rem;
}

.footer-column a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
}

.footer-column a:hover {
    color: var(--primary-orange);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-bottom-links {
    display: flex;
    gap: 2rem;
}

.footer-bottom-links a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    transition: var(--transition);
}

.footer-bottom-links a:hover {
    color: var(--primary-orange);
}

/* === CART MODAL === */
.cart-modal {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100%;
    background: rgba(42, 42, 42, 0.8);
    z-index: 2000;
    transition: var(--transition);
}

.cart-modal.active {
    right: 0;
}

.cart-content {
    position: absolute;
    top: 0;
    right: 0;
    width: 400px;
    height: 100%;
    background: var(--pure-white);
    display: flex;
    flex-direction: column;
    transform: translateX(100%);
    transition: var(--transition);
}

.cart-modal.active .cart-content {
    transform: translateX(0);
}

.cart-header {
    padding: 2rem;
    border-bottom: 1px solid var(--gray-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.cart-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--gray-dark);
}

.cart-items {
    flex: 1;
    padding: 1rem;
    overflow-y: auto;
}

.cart-item {
    display: flex;
    gap: 1rem;
    padding: 1rem;
    border-bottom: 1px solid var(--gray-light);
}

.cart-item-image {
    width: 80px;
    height: 80px;
    border-radius: var(--border-radius);
    overflow: hidden;
}

.cart-item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.cart-item-info {
    flex: 1;
}

.cart-item-name {
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.cart-item-price {
    color: var(--primary-orange);
    font-weight: 600;
}

.cart-footer {
    padding: 2rem;
    border-top: 1px solid var(--gray-light);
}

.cart-total {
    text-align: center;
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.cart-checkout {
    width: 100%;
    padding: 1rem;
}

/* === ANIMAÇÕES === */
@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from { transform: translateX(-100px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

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

/* === RESPONSIVIDADE === */
@media (max-width: 968px) {
    .navbar {
        padding: 0.75rem 0;
    }
    
    .header {
        height: auto;
    }
    
    .nav-menu {
        position: fixed;
        top: 100%;
        left: -100%;
        width: 100%;
        height: calc(100vh - 100%);
        background: var(--pure-white);
        flex-direction: column;
        justify-content: flex-start;
        padding-top: 2rem;
        transition: var(--transition);
        box-shadow: var(--shadow);
        margin-top: 0;
    }

    .nav-menu.active {
        left: 0;
        top: 100%;
    }
    
    .search-btn, .cart-btn, .account-btn {
        width: 35px;
        height: 35px;
        padding: 8px;
    }
    
    .search-btn i, .cart-btn i, .account-btn i {
        font-size: 14px;
    }
    
    .nav-logo h1 {
        font-size: 1.5rem;
    }
    
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 1rem;
    }
    
    .feature-card {
        padding: 1.5rem 0.5rem;
    }
    
    .feature-card h3 {
        font-size: 1rem;
    }
    
    .feature-card p {
        font-size: 0.85rem;
    }
    
    .feature-icon {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }

    .nav-list {
        flex-direction: column;
        gap: 2rem;
        text-align: center;
    }

    .menu-toggle {
        display: flex;
    }

    .menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(6px, 6px);
    }

    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .collections-grid {
        grid-template-columns: 1fr;
        grid-template-rows: auto;
        height: auto;
    }

    .collection-main {
        grid-row: auto;
    }

    .newsletter-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .footer-links {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .cart-content {
        width: 100%;
    }
}

@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.8rem; }
    h3 { font-size: 1.5rem; }

    .container {
        padding: 0 15px;
    }

    .hero {
        padding: 100px 0 60px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-buttons {
        justify-content: center;
    }

    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }

    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 1rem;
    }
    
    .feature-card {
        padding: 1.5rem 0.75rem;
    }
    
    .feature-card h3 {
        font-size: 0.95rem;
    }
    
    .feature-card p {
        font-size: 0.8rem;
    }

    .input-group {
        flex-direction: column;
    }

    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.8rem;
    }

    .section-title {
        font-size: 1.6rem;
    }

    .feature-icon {
        width: 45px;
        height: 45px;
        font-size: 1.2rem;
    }

    .newsletter-text h2 {
        font-size: 1.8rem;
    }

    .products {
        padding: 60px 0;
    }

    .collections {
        padding: 60px 0;
    }

    .newsletter {
        padding: 60px 0;
    }
    
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 0.5rem;
    }
    
    .feature-card {
        padding: 1rem 0.25rem;
    }
    
    .feature-card h3 {
        font-size: 0.8rem;
    }
    
    .feature-card p {
        font-size: 0.7rem;
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .search-btn, .cart-btn, .account-btn {
        width: 32px;
        height: 32px;
        padding: 6px;
    }
    
    .search-btn i, .cart-btn i, .account-btn i {
        font-size: 12px;
    }
    
    .cart-count {
        width: 16px;
        height: 16px;
        font-size: 0.65rem;
        top: -3px;
        right: -3px;
    }
    
    .nav-logo h1 {
        font-size: 1.3rem;
    }
    
    .navbar {
        padding: 0.5rem 0;
    }
    
    .nav-menu {
        top: 100%;
        height: calc(100vh - 100%);
    }
    
    .nav-menu.active {
        top: 100%;
    }
}

/* === ESTADOS ESPECIAIS === */
.product-card.out-of-stock {
    opacity: 0.6;
}

.product-card.out-of-stock .add-to-cart {
    background: var(--gray-medium);
    cursor: not-allowed;
}

.product-card.out-of-stock .add-to-cart:hover {
    background: var(--gray-medium);
    transform: none;
}

/* === LOADING STATES === */
.loading {
    opacity: 0.7;
    pointer-events: none;
}

.spinner {
    border: 3px solid var(--gray-light);
    border-top: 3px solid var(--primary-orange);
    border-radius: 50%;
    width: 30px;
    height: 30px;
    animation: spin 1s linear infinite;
}

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

/* === SCROLLBAR PERSONALIZADA === */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--gray-light);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(var(--primary-orange), var(--orange-light));
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(var(--orange-light), var(--primary-orange));
}