/* ==========================================
   BULLSTORE - CSS PRINCIPAL
   Tecnologia com Atitude
   ========================================== */

/* ==========================================
   RESET & VARIÁVEIS
   ========================================== */
:root {
    /* Cores da Marca */
    --color-primary: #dc143c;          /* Vermelho do touro */
    --color-secondary: #1e90ff;        /* Azul dos circuitos */
    --color-dark: #0a0a0a;             /* Preto principal */
    --color-dark-2: #1a1a1a;           /* Cinza escuro */
    --color-dark-3: #2a2a2a;           /* Cinza médio */
    --color-light: #ffffff;
    --color-gray: #b0b0b0;
    --color-gray-dark: #666666;
    
    /* Gradientes */
    --gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, #ff1744 100%);
    --gradient-secondary: linear-gradient(135deg, var(--color-secondary) 0%, #2196f3 100%);
    --gradient-dark: linear-gradient(180deg, var(--color-dark) 0%, var(--color-dark-2) 100%);
    
    /* Sombras */
    --shadow-sm: 0 2px 8px rgba(220, 20, 60, 0.1);
    --shadow-md: 0 4px 16px rgba(220, 20, 60, 0.15);
    --shadow-lg: 0 8px 32px rgba(220, 20, 60, 0.2);
    --shadow-glow: 0 0 20px rgba(220, 20, 60, 0.3);
    --shadow-blue-glow: 0 0 20px rgba(30, 144, 255, 0.3);
    
    /* Espaçamentos */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Tipografia */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-secondary: 'Roboto', sans-serif;
    
    /* Transições */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

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

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-fast);
}

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

/* ==========================================
   HEADER & NAVIGATION
   ========================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 2px solid var(--color-dark-3);
    transition: var(--transition-normal);
}

.header.scrolled {
    box-shadow: var(--shadow-lg);
    border-bottom-color: var(--color-primary);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    gap: var(--spacing-md);
}

.logo-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo {
    width: 60px;
    height: 60px;
    object-fit: contain;
    filter: drop-shadow(0 0 10px rgba(220, 20, 60, 0.5));
    transition: var(--transition-normal);
}

.logo:hover {
    filter: drop-shadow(0 0 20px rgba(220, 20, 60, 0.8));
    transform: scale(1.05);
}

.logo-text h1 {
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 1px;
}

.slogan {
    font-size: 0.75rem;
    color: var(--color-secondary);
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    color: var(--color-gray);
    font-weight: 500;
    font-size: 0.95rem;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transform: translateX(-50%);
    transition: var(--transition-normal);
}

.nav-link:hover {
    color: var(--color-light);
    background: rgba(220, 20, 60, 0.1);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 80%;
}

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

.nav-link-external {
    background: var(--gradient-primary);
    color: var(--color-light);
}

.nav-link-external:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.mobile-menu-toggle {
    display: none;
    font-size: 1.5rem;
    color: var(--color-light);
    padding: 0.5rem;
}

/* ==========================================
   HERO SECTION
   ========================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: calc(80px + var(--spacing-lg)) var(--spacing-md) var(--spacing-lg);
    background: radial-gradient(circle at top right, rgba(220, 20, 60, 0.1), transparent 50%),
                radial-gradient(circle at bottom left, rgba(30, 144, 255, 0.1), transparent 50%),
                var(--color-dark);
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><defs><pattern id="grid" width="50" height="50" patternUnits="userSpaceOnUse"><path d="M 50 0 L 0 0 0 50" fill="none" stroke="rgba(220,20,60,0.1)" stroke-width="1"/></pattern></defs><rect width="1000" height="1000" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(220, 20, 60, 0.2);
    border: 1px solid var(--color-primary);
    color: var(--color-primary);
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
    line-height: 1.1;
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: clamp(1.2rem, 3vw, 2rem);
    color: var(--color-secondary);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    letter-spacing: 3px;
    text-transform: uppercase;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--color-gray);
    max-width: 700px;
    margin: 0 auto var(--spacing-lg);
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

/* ==========================================
   BUTTONS
   ========================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: var(--transition-normal);
    cursor: pointer;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--color-light);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

.btn-secondary {
    background: transparent;
    color: var(--color-light);
    border: 2px solid var(--color-secondary);
}

.btn-secondary:hover {
    background: var(--color-secondary);
    border-color: var(--color-secondary);
    transform: translateY(-3px);
    box-shadow: var(--shadow-blue-glow);
}

.btn-large {
    padding: 1.25rem 2.5rem;
    font-size: 1.1rem;
}

/* ==========================================
   SEARCH SECTION
   ========================================== */
.search-section {
    padding: var(--spacing-lg) 0;
    background: var(--color-dark-2);
}

.search-container {
    max-width: 1000px;
    margin: 0 auto;
}

.search-box {
    position: relative;
    display: flex;
    align-items: center;
    background: var(--color-dark-3);
    border: 2px solid transparent;
    border-radius: var(--radius-lg);
    padding: 0.5rem 1rem;
    transition: var(--transition-normal);
    margin-bottom: var(--spacing-md);
}

.search-box:focus-within {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-glow);
}

.search-icon {
    color: var(--color-gray);
    font-size: 1.2rem;
    margin-right: 1rem;
}

.search-input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--color-light);
    font-size: 1.1rem;
    padding: 0.75rem 0;
    outline: none;
}

.search-input::placeholder {
    color: var(--color-gray-dark);
}

.search-clear {
    color: var(--color-gray);
    font-size: 1.2rem;
    padding: 0.5rem;
    border-radius: 50%;
    transition: var(--transition-fast);
    opacity: 0;
    visibility: hidden;
}

.search-clear.visible {
    opacity: 1;
    visibility: visible;
}

.search-clear:hover {
    background: rgba(220, 20, 60, 0.2);
    color: var(--color-primary);
}

.search-filters {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    justify-content: center;
}

.filter-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--color-dark-3);
    color: var(--color-gray);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    font-weight: 500;
    transition: var(--transition-fast);
}

.filter-btn:hover {
    color: var(--color-light);
    border-color: var(--color-secondary);
    background: rgba(30, 144, 255, 0.1);
}

.filter-btn.active {
    background: var(--gradient-primary);
    color: var(--color-light);
    border-color: var(--color-primary);
}

/* ==========================================
   CATEGORIES SECTION
   ========================================== */
.categories-section {
    padding: var(--spacing-lg) 0;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.category-card {
    background: var(--color-dark-2);
    border: 2px solid var(--color-dark-3);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    text-align: center;
    transition: var(--transition-normal);
    cursor: pointer;
}

.category-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
    background: linear-gradient(135deg, rgba(220, 20, 60, 0.1), transparent);
}

.category-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: 50%;
    font-size: 2rem;
    color: var(--color-light);
}

.category-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--color-light);
}

.category-card p {
    color: var(--color-gray);
    font-size: 0.95rem;
}

/* ==========================================
   PRODUCTS SECTION
   ========================================== */
.products-section {
    padding: var(--spacing-lg) 0;
    background: var(--color-dark-2);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-subtitle {
    color: var(--color-gray);
    font-size: 1.1rem;
    margin-top: var(--spacing-sm);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.product-card {
    background: var(--color-dark);
    border: 2px solid var(--color-dark-3);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.product-image-container {
    position: relative;
    width: 100%;
    height: 300px;
    background: var(--color-dark-2);
    overflow: hidden;
}

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

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

.product-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--gradient-primary);
    color: var(--color-light);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.85rem;
}

.product-info {
    padding: var(--spacing-md);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.product-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
    color: var(--color-light);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-category {
    display: inline-block;
    color: var(--color-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
}

.product-footer {
    margin-top: auto;
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--color-dark-3);
}

.product-link {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    padding: 1rem;
    background: var(--gradient-primary);
    color: var(--color-light);
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: var(--transition-normal);
}

.product-link:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.product-share {
    display: flex;
    gap: 0.5rem;
    margin-top: var(--spacing-sm);
}

.share-btn {
    flex: 1;
    padding: 0.75rem;
    background: var(--color-dark-3);
    color: var(--color-gray);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    transition: var(--transition-fast);
}

.share-btn:hover {
    background: var(--color-secondary);
    color: var(--color-light);
}

/* No Results */
.no-results {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-md);
    color: var(--color-gray);
}

.no-results i {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-gray-dark);
}

.no-results h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-light);
}

/* Loading */
.loading {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-md);
}

.spinner {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--spacing-md);
    border: 4px solid var(--color-dark-3);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* ==========================================
   FEATURES SECTION
   ========================================== */
.features-section {
    padding: var(--spacing-lg) 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.feature-card {
    background: var(--color-dark-2);
    border: 2px solid var(--color-dark-3);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    text-align: center;
    transition: var(--transition-normal);
}

.feature-card:hover {
    border-color: var(--color-secondary);
    transform: translateY(-5px);
    box-shadow: var(--shadow-blue-glow);
}

.feature-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-secondary);
    border-radius: 50%;
    font-size: 1.8rem;
    color: var(--color-light);
}

.feature-card h3 {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-light);
}

.feature-card p {
    color: var(--color-gray);
    line-height: 1.6;
}

/* ==========================================
   CTA SECTION
   ========================================== */
.cta-section {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, rgba(220, 20, 60, 0.1), rgba(30, 144, 255, 0.1));
    text-align: center;
}

.cta-content h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
}

.cta-content p {
    font-size: 1.2rem;
    color: var(--color-gray);
    margin-bottom: var(--spacing-lg);
}

/* ==========================================
   FOOTER
   ========================================== */
.footer {
    background: var(--color-dark);
    border-top: 2px solid var(--color-dark-3);
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-section h4 {
    color: var(--color-primary);
    font-size: 1.2rem;
    margin-bottom: var(--spacing-md);
    font-weight: 700;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.footer-logo img {
    width: 50px;
    height: 50px;
}

.footer-logo h3 {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-light);
}

.footer-slogan {
    color: var(--color-secondary);
    font-weight: 600;
    font-size: 0.85rem;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-sm);
}

.footer-description {
    color: var(--color-gray);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--color-dark-3);
    border-radius: 50%;
    color: var(--color-gray);
    transition: var(--transition-fast);
}

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

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: var(--color-gray);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-primary);
    padding-left: 0.5rem;
}

.footer-contact {
    list-style: none;
}

.footer-contact li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    color: var(--color-gray);
}

.footer-contact i {
    color: var(--color-secondary);
    width: 20px;
}

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

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-dark-3);
    color: var(--color-gray);
}

.footer-bottom p {
    margin-bottom: 0.5rem;
}

.footer-note {
    font-size: 0.9rem;
    color: var(--color-gray-dark);
}

/* ==========================================
   SCROLL TO TOP
   ========================================== */
.scroll-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: var(--color-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
    z-index: 999;
    box-shadow: var(--shadow-lg);
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
}

/* ==========================================
   RESPONSIVE - MOBILE
   ========================================== */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: rgba(10, 10, 10, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        padding: var(--spacing-lg) var(--spacing-md);
        gap: var(--spacing-sm);
        transition: var(--transition-normal);
        overflow-y: auto;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-link {
        width: 100%;
        justify-content: center;
        padding: 1rem;
        font-size: 1.1rem;
    }
    
    .hero {
        min-height: 80vh;
        padding-top: 100px;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .search-filters {
        justify-content: flex-start;
        overflow-x: auto;
        flex-wrap: nowrap;
        padding-bottom: var(--spacing-sm);
    }
    
    .filter-btn {
        white-space: nowrap;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .categories-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .scroll-to-top {
        bottom: 1rem;
        right: 1rem;
        width: 45px;
        height: 45px;
    }
}

@media (max-width: 480px) {
    .logo {
        width: 50px;
        height: 50px;
    }
    
    .logo-text h1 {
        font-size: 1.2rem;
    }
    
    .slogan {
        font-size: 0.65rem;
    }
    
    .categories-grid {
        grid-template-columns: 1fr;
    }
    
    .product-image-container {
        height: 250px;
    }
}

/* ==========================================
   UTILITIES
   ========================================== */
.text-center {
    text-align: center;
}

.hidden {
    display: none !important;
}

.fade-in {
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}