/* ===== Design System - Variables ===== */
:root {
    /* Cores (Minimalismo de Luxo) */
    --cream-50: #FDFBF7;      /* Off-white premium (fundo principal) */
    --cream-100: #F5F5F5;     /* Gelo suave */
    --cream-200: #EEEAE3;
    --cream-300: #E1DBD0;

    --charcoal-900: #1A1A1A;  /* Preto carvão (texto) */
    --charcoal-800: #262626;
    --charcoal-700: #404040;
    --charcoal-600: #525252;
    --charcoal-200: #E7E5E4;

    /* Dourado champanhe / envelhecido (sobrio) */
    --gold-600: #C5A059;
    --gold-700: #B18D48;
    --gold-800: #8F7339;
    --gold-100: #FBF6EA;
    --gold-200: #F3E7CF;

    /* Azul noturno (opcional para texto/CTAs escuros) */
    --navy-900: #0F172A;
    --navy-800: #1E293B;
    --navy-700: #334155;
    
    /* Tipografia */
    --font-playfair: 'Playfair Display', serif;
    --font-montserrat: 'Montserrat', sans-serif;
    
    /* Espaçamentos */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Sombras (ultra-suaves e difusas) */
    --shadow-sm: 0 10px 30px rgba(15, 23, 42, 0.06);
    --shadow-md: 0 18px 50px rgba(15, 23, 42, 0.08);
    --shadow-lg: 0 28px 80px rgba(15, 23, 42, 0.10);
    --shadow-xl: 0 40px 120px rgba(15, 23, 42, 0.12);
    
    /* Transições */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
}

/* ===== Reset e Base ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-montserrat);
    line-height: 1.7;
    letter-spacing: 0.1px;
    color: var(--charcoal-900);
    background-color: var(--cream-50);
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== Utilitários Tailwind Customizados ===== */
.bg-cream-50 { background-color: var(--cream-50); }
.bg-cream-100 { background-color: var(--cream-100); }
.bg-cream-200 { background-color: var(--cream-200); }

.text-charcoal-900 { color: var(--charcoal-900); }
.text-charcoal-800 { color: var(--charcoal-800); }
.text-charcoal-700 { color: var(--charcoal-700); }
.text-charcoal-600 { color: var(--charcoal-600); }

.bg-charcoal-900 { background-color: var(--charcoal-900); }
.bg-charcoal-800 { background-color: var(--charcoal-800); }

.text-gold-600 { color: var(--gold-600); }
.text-gold-700 { color: var(--gold-700); }

.bg-gold-600 { background-color: var(--gold-600); }
.bg-gold-700 { background-color: var(--gold-700); }
.bg-gold-100 { background-color: var(--gold-100); }

.font-playfair { font-family: var(--font-playfair); }
.font-montserrat { font-family: var(--font-montserrat); }

/* ===== Header e Navegação ===== */
header {
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.nav-link {
    color: var(--charcoal-700);
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link:hover {
    color: var(--gold-600);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--gold-600);
    transition: width var(--transition-normal);
}

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

.nav-link-mobile {
    color: var(--charcoal-700);
    font-weight: 500;
    padding: var(--spacing-sm) 0;
    transition: color var(--transition-fast);
}

.nav-link-mobile:hover {
    color: var(--gold-600);
}

/* ===== Hero Carousel (editorial, estilo joalheria premium) ===== */
.hero-carousel {
    background: linear-gradient(135deg, var(--cream-50) 0%, var(--cream-100) 100%);
    padding-bottom: 0;
}

.carousel {
    position: relative;
    border-radius: 1.25rem;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    background: rgba(253, 251, 247, 0.65);
    border: 1px solid rgba(15, 23, 42, 0.08);
}

.carousel-track {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: 100%;
    transition: transform 600ms cubic-bezier(0.2, 0.8, 0.2, 1);
    will-change: transform;
}

.carousel-slide {
    min-height: clamp(520px, 70vh, 720px);
    padding: clamp(1.25rem, 3vw, 2.5rem);
}

.carousel-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: clamp(1.25rem, 3vw, 2.75rem);
    align-items: center;
}

.carousel-media {
    position: relative;
    border-radius: 1.1rem;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.carousel-media img {
    width: 100%;
    height: clamp(420px, 62vh, 640px);
    object-fit: cover;
    display: block;
    transform: scale(1.01);
}

.carousel-copy {
    padding-right: clamp(0rem, 1vw, 1rem);
}

.carousel-eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.18em;
    font-size: 0.72rem;
    color: rgba(15, 23, 42, 0.65);
    margin-bottom: 0.75rem;
}

.carousel-title {
    font-size: clamp(2.1rem, 4.4vw, 3.8rem);
    line-height: 1.08;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
}

.carousel-subtitle {
    font-size: clamp(1rem, 1.6vw, 1.2rem);
    color: rgba(15, 23, 42, 0.78);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.carousel-ctas {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.carousel-benefits {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    color: rgba(15, 23, 42, 0.7);
    font-size: 0.92rem;
}

.carousel-benefits span {
    border: 1px solid rgba(15, 23, 42, 0.12);
    background: rgba(253, 251, 247, 0.7);
    padding: 0.45rem 0.7rem;
    border-radius: 0.5rem;
}

.carousel-controls {
    position: absolute;
    left: 1rem;
    right: 1rem;
    bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    pointer-events: none;
}

.carousel-arrow {
    pointer-events: auto;
    width: 44px;
    height: 44px;
    border-radius: 0.75rem;
    border: 1px solid rgba(15, 23, 42, 0.12);
    background: rgba(253, 251, 247, 0.75);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    display: grid;
    place-items: center;
    color: var(--navy-900);
    transition: transform var(--transition-fast), background-color var(--transition-fast), border-color var(--transition-fast);
}

.carousel-arrow:hover {
    transform: translateY(-1px);
    border-color: rgba(197, 160, 89, 0.55);
}

.carousel-dots {
    pointer-events: auto;
    display: flex;
    gap: 0.5rem;
    align-items: center;
    justify-content: center;
}

.carousel-dot {
    width: 26px;
    height: 4px;
    border-radius: 999px;
    border: none;
    background: rgba(15, 23, 42, 0.22);
    transition: width var(--transition-normal), background-color var(--transition-normal);
}

.carousel-dot.is-active {
    width: 44px;
    background: rgba(197, 160, 89, 0.9);
}

.hero-strip {
    margin-top: 1.25rem;
    padding: 0.75rem 0;
    border-top: 1px solid rgba(15, 23, 42, 0.08);
    border-bottom: 1px solid rgba(15, 23, 42, 0.08);
    background: rgba(253, 251, 247, 0.7);
}

.hero-strip-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0.75rem;
}

.hero-strip-item {
    text-align: center;
    font-size: 0.9rem;
    color: rgba(15, 23, 42, 0.72);
    letter-spacing: 0.02em;
}

@media (max-width: 1024px) {
    .carousel-grid {
        grid-template-columns: 1fr;
    }

    .carousel-media img {
        height: clamp(320px, 45vh, 520px);
    }

    .carousel-controls {
        left: 0.75rem;
        right: 0.75rem;
    }

    .hero-strip-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    .carousel-slide {
        min-height: 560px;
    }

    .carousel-controls {
        bottom: 0.75rem;
    }
}

/* ===== Hero Section (legacy) ===== */
.hero-section {
    background: linear-gradient(135deg, var(--cream-50) 0%, var(--cream-100) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
}

.hero-content h1 {
    font-size: clamp(2rem, 5vw, 4rem);
    line-height: 1.2;
    margin-bottom: var(--spacing-lg);
}

.hero-content p {
    font-size: clamp(1rem, 2vw, 1.25rem);
    margin-bottom: var(--spacing-xl);
}

.image-container {
    position: relative;
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.image-container img {
    width: 100%;
    height: auto;
    display: block;
}

.gold-overlay {
    position: absolute;
    inset: 0;
    background: radial-gradient(1200px circle at 30% 20%, rgba(197, 160, 89, 0.18), transparent 55%),
                linear-gradient(45deg, rgba(15, 23, 42, 0.06) 0%, rgba(15, 23, 42, 0.02) 100%);
    pointer-events: none;
}

/* ===== Botões ===== */
.cta-primary {
    background-color: var(--navy-900);
    color: var(--gold-200);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: 0.5rem; /* radius-sm, sem pill */
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal), background-color var(--transition-normal), color var(--transition-normal);
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(197, 160, 89, 0.35);
}

.cta-primary:hover {
    background-color: #0B1220;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.cta-secondary {
    background-color: transparent;
    color: var(--navy-900);
    border: 1px solid rgba(15, 23, 42, 0.25);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: 0.5rem; /* radius-sm */
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal), background-color var(--transition-normal), border-color var(--transition-normal);
}

.cta-secondary:hover {
    background-color: rgba(15, 23, 42, 0.06);
    border-color: rgba(197, 160, 89, 0.45);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

/* ===== Seção Qualidade ===== */
.comparison-chart {
    background-color: white;
    padding: var(--spacing-xl);
    border-radius: 1rem;
    box-shadow: var(--shadow-md);
}

.quality-badge {
    padding: var(--spacing-xl);
    background-color: white;
    border-radius: 1rem;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.quality-badge:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

/* ===== Vitrine de Produtos ===== */
.filter-btn {
    background-color: transparent;
    color: var(--navy-900);
    border: 1px solid rgba(15, 23, 42, 0.18);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: 0.5rem; /* sem pill */
    font-weight: 500;
    cursor: pointer;
    transition: transform var(--transition-fast), background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

.filter-btn.active,
.filter-btn:hover {
    background-color: rgba(15, 23, 42, 0.06);
    color: var(--navy-900);
    border-color: rgba(197, 160, 89, 0.55);
}

.product-card {
    background-color: white;
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    cursor: pointer;
}

.product-card:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
}

.product-image {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.product-info {
    padding: var(--spacing-lg);
}

.product-name {
    font-family: var(--font-playfair);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--charcoal-900);
    margin-bottom: var(--spacing-sm);
}

.product-category {
    color: var(--charcoal-600);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ===== Modal de Produto ===== */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

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

.modal-content {
    background-color: white;
    border-radius: 1rem;
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-xl);
    border-bottom: 1px solid var(--charcoal-200);
}

.modal-body {
    padding: var(--spacing-xl);
}

.modal-footer {
    padding: var(--spacing-xl);
    border-top: 1px solid var(--charcoal-200);
}

/* ===== Botões de Canal de Vendas ===== */
.amazon-btn {
    background-color: var(--navy-900);
    color: white;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: 0.5rem;
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal), background-color var(--transition-normal);
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(15, 23, 42, 0.18);
}

.amazon-btn:hover {
    background-color: #0B1220;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.whatsapp-btn {
    background-color: transparent;
    color: var(--navy-900);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: 0.5rem;
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal), background-color var(--transition-normal), border-color var(--transition-normal);
    box-shadow: none;
    border: 1px solid rgba(197, 160, 89, 0.55);
}

.whatsapp-btn:hover {
    background-color: rgba(15, 23, 42, 0.06);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

/* ===== Cards de Canal de Vendas ===== */
.sales-channel-card {
    background-color: white;
    border-radius: 1rem;
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

.sales-channel-card.retail {
    border-top: 2px solid rgba(15, 23, 42, 0.20);
}

.sales-channel-card.wholesale {
    border-top: 4px solid var(--gold-600);
}

.sales-channel-card:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
}

/* ===== Responsividade ===== */
@media (max-width: 768px) {
    .hero-section {
        padding-top: 100px;
        text-align: center;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .cta-primary,
    .cta-secondary {
        width: 100%;
        justify-content: center;
        margin-bottom: var(--spacing-sm);
    }
    
    .comparison-chart {
        padding: var(--spacing-lg);
    }
    
    .modal-content {
        width: 95%;
        margin: var(--spacing-md);
    }
}

@media (max-width: 640px) {
    .container {
        padding-left: var(--spacing-md);
        padding-right: var(--spacing-md);
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .filter-btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.9rem;
    }
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

.pulse {
    animation: pulse 2s infinite;
}

/* ===== Utilitários de Acessibilidade ===== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ===== Scrollbar Customizada ===== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--cream-100);
}

::-webkit-scrollbar-thumb {
    background: var(--gold-600);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gold-700);
}