/* ==========================================================================
   ÓTICA VERSALLES - PREMIUM STYLE SYSTEM (VANILLA CSS)
   Core Theme: Black, White, Gold Accents, Clean & Ultra-Professional
   ========================================================================== */

/* 1. CSS VARIABLES & DESIGN TOKENS */
:root {
    /* Color Palette */
    --color-black: #000000;
    --color-dark: #0a0a0a;
    --color-dark-gray: #1a1a1a;
    --color-medium-gray: #555555;
    --color-light-gray: #e5e5e7;
    --color-bg-light: #f9f9fb;
    --color-bg-white: #ffffff;
    
    /* Luxury Accents */
    --color-gold: #c5a880;
    --color-gold-hover: #b3946d;
    --color-gold-light: #fcf9f5;
    --color-whatsapp: #25d366;
    
    /* Typography */
    --font-heading: 'Cormorant Garamond', serif;
    --font-body: 'Inter', sans-serif;
    --font-alt: 'Montserrat', sans-serif;
    
    /* Layout & Spacing */
    --container-max-width: 1200px;
    --header-height: 80px;
    --top-bar-height: 40px;
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    
    /* Shadows & Borders */
    --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.03);
    --shadow-premium: 0 20px 40px rgba(0, 0, 0, 0.06);
    --border-luxury: 1px solid rgba(197, 168, 128, 0.2);
    --border-thin: 1px solid rgba(0, 0, 0, 0.08);
    --border-dark: 1px solid rgba(255, 255, 255, 0.1);
}

/* 2. RESET & BASE ELEMENTS */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.8;
    color: var(--color-dark);
    background-color: var(--color-bg-white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Font Readability Helper (Aged 35+ / Elderly Optimization) */
p, li, select, input, button {
    font-size: 1.05rem; /* Slightly larger body text */
    letter-spacing: -0.01em;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--color-black);
    line-height: 1.2;
}

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

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

/* 3. LAYOUT UTILITIES */
.container {
    width: 90%;
    max-width: var(--container-max-width);
    margin: 0 auto;
}

.section-padding {
    padding: 100px 0;
}

.bg-light {
    background-color: var(--color-bg-light);
}

.bg-dark {
    background-color: var(--color-dark);
}

.text-light {
    color: var(--color-bg-white) !important;
}

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

.grid-two-cols {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.max-w-600 {
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.max-w-800 {
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* 4. BUTTONS & ACTIONS */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-family: var(--font-alt);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    border-radius: 0; /* Luxury sharp edge */
    cursor: pointer;
    transition: var(--transition-smooth);
    border: 1px solid transparent;
}

.btn-primary {
    background-color: var(--color-gold);
    color: var(--color-black);
}

.btn-primary:hover {
    background-color: var(--color-black);
    color: var(--color-bg-white);
    border-color: var(--color-black);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-black);
    border: 1px solid var(--color-black);
}

.btn-outline:hover {
    background-color: var(--color-black);
    color: var(--color-bg-white);
}

.btn-outline.text-light {
    color: var(--color-bg-white);
    border-color: var(--color-bg-white);
}

.btn-outline.text-light:hover {
    background-color: var(--color-bg-white);
    color: var(--color-black);
}

.btn-large {
    padding: 18px 36px;
    font-size: 0.9rem;
}

.btn-full {
    width: 100%;
}

.whatsapp-btn {
    background-color: var(--color-whatsapp) !important;
    color: var(--color-bg-white) !important;
    border-color: var(--color-whatsapp) !important;
}

.whatsapp-btn:hover {
    background-color: #20ba56 !important;
}

/* 5. TOP BAR & STICKY HEADER */
.top-bar {
    height: var(--top-bar-height);
    background-color: var(--color-dark);
    color: var(--color-light-gray);
    font-family: var(--font-alt);
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    display: flex;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    z-index: 1001;
    position: relative;
}

.top-bar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 90%;
}

.top-bar-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.top-bar-item.contacts {
    gap: 20px;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: 6px;
}

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

.whatsapp-accent {
    color: var(--color-whatsapp);
}

.whatsapp-accent:hover {
    color: #20ba56;
}

/* Main Header */
.main-header {
    height: var(--header-height);
    background-color: transparent;
    border-bottom: none;
    position: absolute;
    top: var(--top-bar-height);
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition-smooth);
}

.header-container {
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Logo */
.logo-wrapper {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.logo-img {
    height: 40px;
    width: auto;
    max-width: 100%;
    object-fit: contain;
    transition: var(--transition-smooth);
}

.logo-dark {
    display: none;
}

.logo-light {
    display: block;
}

body.header-scrolled .logo-dark {
    display: block;
}

body.header-scrolled .logo-light {
    display: none;
}

.footer-logo-img {
    height: 45px;
    width: auto;
    max-width: 100%;
    object-fit: contain;
}

.partner-logo-img {
    max-width: 100%;
    height: auto;
    max-height: 45px;
    object-fit: contain;
}

/* Navigation Menu */
@media (min-width: 992px) {
    .nav-menu {
        display: flex;
        align-items: center;
        justify-content: center;
        flex-grow: 1;
    }
}

.nav-menu ul {
    display: flex;
    list-style: none;
    gap: clamp(14px, 2vw, 26px);
}

.nav-link {
    font-family: var(--font-alt);
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: rgba(255, 255, 255, 0.8);
    position: relative;
    padding: 8px 0;
    white-space: nowrap;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-gold);
    transition: var(--transition-smooth);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-bg-white);
}

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

.nav-mobile-footer {
    display: none;
}

/* Header CTA */
.header-actions {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

/* Header Scroll Modifier */
body.header-scrolled .main-header {
    position: fixed;
    top: 0;
    height: 70px;
    box-shadow: var(--shadow-soft);
    background-color: rgba(255, 255, 255, 0.98);
    border-bottom: var(--border-thin);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
}

body.header-scrolled .nav-link {
    color: var(--color-medium-gray);
}

body.header-scrolled .nav-link:hover,
body.header-scrolled .nav-link.active {
    color: var(--color-black);
}

/* 6. HERO SECTION */
.hero-section {
    min-height: 85vh;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    color: var(--color-bg-white);
    padding: 80px 0;
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    z-index: 2;
    max-width: 900px;
}

.hero-label {
    font-family: var(--font-alt);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.3em;
    color: var(--color-gold);
    margin-bottom: 20px;
    text-transform: uppercase;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 400;
    line-height: 1.1;
    color: var(--color-bg-white);
    margin-bottom: 24px;
}

.hero-description {
    font-size: clamp(1.1rem, 2vw, 1.35rem);
    font-weight: 300;
    max-width: 700px;
    margin-bottom: 40px;
    color: var(--color-light-gray);
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    gap: 20px;
    margin-bottom: 60px;
}

/* Hero Statistics Grid */
.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    width: 100%;
    max-width: 700px;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    padding-top: 40px;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--color-gold);
    line-height: 1;
    margin-bottom: 8px;
}

.stat-label {
    font-family: var(--font-alt);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-light-gray);
}

/* Scroll Down Button */
.scroll-down-arrow {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--color-light-gray);
    z-index: 2;
    animation: bounce 2s infinite;
}

.scroll-down-arrow:hover {
    color: var(--color-gold);
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0) translateX(-50%);
    }
    40% {
        transform: translateY(-10px) translateX(-50%);
    }
    60% {
        transform: translateY(-5px) translateX(-50%);
    }
}

/* 7. TRUST PARTNERS BANNER */
.trust-banner {
    background-color: var(--color-bg-light);
    border-bottom: var(--border-thin);
    padding: 40px 0;
}

.trust-container {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.trust-title {
    font-family: var(--font-alt);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-medium-gray);
    margin-bottom: 24px;
}

.trust-logos {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    width: 100%;
}

.trust-logo-card {
    background-color: var(--color-bg-white);
    border: var(--border-thin);
    padding: 16px;
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 80px;
    transition: var(--transition-smooth);
}

.trust-logo-card:hover {
    border-color: var(--color-gold);
    box-shadow: var(--shadow-soft);
    transform: translateY(-2px);
}

.partner-badge {
    font-family: var(--font-alt);
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--color-black);
}

.partner-sub {
    font-size: 0.65rem;
    color: var(--color-medium-gray);
    margin-top: 4px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Trust Certificates (Zeiss & Essilor badges side by side) */
.trust-certificates {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 40px;
    margin-bottom: 30px;
}

.cert-img {
    height: 120px;
    width: auto;
    object-fit: contain;
    border: var(--border-thin);
    border-radius: 4px;
    background-color: var(--color-bg-white);
    padding: 10px;
    box-shadow: var(--shadow-soft);
    transition: var(--transition-smooth);
}

.cert-img:hover {
    transform: scale(1.05);
    border-color: var(--color-gold);
}

/* 8. SECTION HEADERS & LABELS */
.section-label {
    display: inline-block;
    font-family: var(--font-alt);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.25em;
    color: var(--color-medium-gray);
    margin-bottom: 16px;
    text-transform: uppercase;
}

.section-label.label-gold {
    color: var(--color-gold);
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 3.5vw, 3.2rem);
    font-weight: 400;
    margin-bottom: 24px;
    line-height: 1.15;
}

.section-subtitle {
    font-size: 1.15rem;
    color: var(--color-medium-gray);
    line-height: 1.6;
    margin-bottom: 50px;
}

/* 9. ABOUT / TRADITION SECTION */
.about-text-column {
    padding-right: 20px;
}

.lead-text {
    font-size: 1.25rem;
    font-family: var(--font-heading);
    font-style: italic;
    color: var(--color-medium-gray);
    margin-bottom: 24px;
    line-height: 1.5;
}

.body-text {
    margin-bottom: 20px;
    color: var(--color-medium-gray);
}

.signature-block {
    margin-top: 40px;
    border-top: var(--border-thin);
    padding-top: 24px;
    display: flex;
    flex-direction: column;
}

.signature-name {
    font-family: 'Cormorant Garamond', Georgia, serif;
    font-size: 2.2rem;
    font-style: italic;
    font-weight: 400;
    color: var(--color-gold);
    line-height: 1;
}

.signature-title {
    font-family: var(--font-alt);
    font-size: 0.65rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-medium-gray);
    margin-top: 6px;
}

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

.image-wrapper-fancy {
    position: relative;
    width: 100%;
    max-width: 480px;
}

.image-wrapper-fancy::before {
    content: '';
    position: absolute;
    top: 20px;
    left: -20px;
    width: 100%;
    height: 100%;
    border: 1px solid var(--color-gold);
    z-index: 1;
    pointer-events: none;
    transition: var(--transition-smooth);
}

.image-wrapper-fancy:hover::before {
    transform: translate(-10px, 10px);
}

.about-main-img {
    position: relative;
    z-index: 2;
    box-shadow: var(--shadow-premium);
    filter: grayscale(0.15);
    transition: var(--transition-smooth);
    border: 10px solid var(--color-bg-white);
}

.image-wrapper-fancy:hover .about-main-img {
    filter: grayscale(0);
}

.floating-badge {
    position: absolute;
    bottom: -20px;
    right: -20px;
    background-color: var(--color-black);
    color: var(--color-bg-white);
    padding: 24px;
    z-index: 3;
    box-shadow: var(--shadow-premium);
    border-left: 3px solid var(--color-gold);
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 130px;
}

.badge-num {
    font-family: var(--font-heading);
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--color-gold);
    line-height: 1;
}

.badge-txt {
    font-family: var(--font-alt);
    font-size: 0.6rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    text-align: center;
    line-height: 1.3;
    margin-top: 6px;
}

/* 10. BRANDS SECTION (LUXURY ACERVO) */
.brands-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    border-top: var(--border-dark);
    border-left: var(--border-dark);
    margin-bottom: 80px;
}

.brand-item {
    border-right: var(--border-dark);
    border-bottom: var(--border-dark);
    padding: 50px 30px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    transition: var(--transition-smooth);
    position: relative;
    background-color: #0b0b0b;
}

.brand-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(197, 168, 128, 0.03);
    opacity: 0;
    transition: var(--transition-smooth);
}

.brand-item:hover::before {
    opacity: 1;
}

.brand-item:hover {
    transform: translateY(-3px);
    background-color: #121212;
}

.brand-name {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 300;
    letter-spacing: 0.05em;
    color: var(--color-bg-white);
    transition: var(--transition-smooth);
}

.brand-item:hover .brand-name {
    color: var(--color-gold);
}

.brand-origin {
    font-family: var(--font-alt);
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.25em;
    color: var(--color-medium-gray);
    margin-top: 10px;
}

/* Optical Lenses Technology Subblock */
.lenses-technology-block {
    background-color: var(--color-dark-gray);
    border: var(--border-luxury);
    padding: 60px;
    margin-top: 50px;
}

.lenses-tech-img-wrapper {
    position: relative;
    height: 100%;
    min-height: 350px;
}

.lenses-tech-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(0.2);
    border-left: 2px solid var(--color-gold);
}

.lenses-tech-text {
    padding-left: 20px;
}

.tech-label {
    font-family: var(--font-alt);
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    color: var(--color-gold);
    display: block;
    margin-bottom: 12px;
}

.lenses-tech-text h3 {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    color: var(--color-bg-white);
    margin-bottom: 20px;
    font-weight: 400;
}

.lenses-tech-text p {
    color: var(--color-light-gray);
    margin-bottom: 30px;
}

.tech-features {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.tech-feature-item {
    display: flex;
    gap: 15px;
    align-items: flex-start;
}

.tech-feature-item svg {
    flex-shrink: 0;
    margin-top: 4px;
}

.tech-feature-item div {
    color: var(--color-light-gray);
}

.tech-feature-item strong {
    color: var(--color-bg-white);
    display: block;
    font-family: var(--font-alt);
    font-size: 0.85rem;
    letter-spacing: 0.05em;
    font-weight: 600;
    margin-bottom: 2px;
}

/* 11. SERVICES SECTION */
.services-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.service-card {
    background-color: var(--color-bg-white);
    border: var(--border-thin);
    padding: 40px 30px;
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-premium);
    border-color: var(--color-gold);
}

.card-icon {
    color: var(--color-gold);
    margin-bottom: 24px;
    display: inline-flex;
}

.service-card h3 {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    margin-bottom: 16px;
    font-weight: 500;
}

.service-card p {
    font-size: 0.95rem;
    color: var(--color-medium-gray);
    line-height: 1.6;
}

/* 12. TESTIMONIALS SECTION */
.testimonials-slider {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-top: 50px;
}

.testimonial-card {
    background-color: var(--color-dark-gray);
    border: var(--border-dark);
    padding: 50px 40px;
    position: relative;
    transition: var(--transition-smooth);
}

.testimonial-card:hover {
    border-color: rgba(197, 168, 128, 0.4);
    transform: translateY(-3px);
}

.stars {
    color: var(--color-gold);
    font-size: 1.1rem;
    letter-spacing: 2px;
    margin-bottom: 20px;
}

.testimonial-text {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-style: italic;
    line-height: 1.5;
    color: var(--color-light-gray);
    margin-bottom: 30px;
}

.testimonial-author {
    display: block;
    font-family: var(--font-alt);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-gold);
}

/* 13. FAQ ACCORDION (LOCAL SEO) */
.faq-accordion {
    margin-top: 50px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.faq-item {
    background-color: var(--color-bg-white);
    border: var(--border-thin);
    transition: var(--transition-smooth);
}

.faq-item:hover {
    border-color: rgba(0,0,0,0.15);
}

.faq-item.active {
    border-color: var(--color-gold);
    box-shadow: var(--shadow-soft);
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 30px;
    background: none;
    border: none;
    text-align: left;
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 500;
    color: var(--color-black);
    cursor: pointer;
}

.faq-icon {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--color-gold);
    transition: var(--transition-smooth);
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-out;
    padding: 0 30px;
}

.faq-answer p {
    padding-bottom: 24px;
    color: var(--color-medium-gray);
    font-size: 1rem;
    line-height: 1.6;
}

/* 14. LOCATION & CONTACTS SECTION */
.contact-info-column {
    padding-right: 40px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 30px;
    margin: 40px 0;
}

.detail-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.detail-icon {
    background-color: var(--color-bg-light);
    color: var(--color-gold);
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    border: var(--border-thin);
}

.detail-item h4 {
    font-family: var(--font-alt);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-black);
    margin-bottom: 6px;
    font-weight: 600;
}

.detail-item p {
    font-size: 0.95rem;
    color: var(--color-medium-gray);
    line-height: 1.5;
}

.detail-link {
    color: inherit;
    font-weight: 500;
}

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

.action-buttons-wrap {
    display: flex;
    gap: 20px;
}

/* Map Styling with B&W Grayscale Filter Toggle on Hover */
.map-column {
    height: 550px;
    width: 100%;
}

.map-container {
    height: 100%;
    width: 100%;
    border: var(--border-thin);
    overflow: hidden;
    position: relative;
    box-shadow: var(--shadow-premium);
}

.google-map-iframe {
    filter: grayscale(1) contrast(1.1) invert(0.04);
    transition: filter 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.map-container:hover .google-map-iframe {
    filter: grayscale(0) contrast(1) invert(0);
}

/* 15. FOOTER SYSTEM */
.main-footer {
    background-color: var(--color-dark);
    color: var(--color-light-gray);
    padding: 80px 0 30px 0;
    border-top: var(--border-luxury);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1.2fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--color-bg-white);
    margin-bottom: 20px;
}

.footer-desc {
    font-size: 0.9rem;
    line-height: 1.6;
    color: #888888;
    margin-bottom: 24px;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    width: 36px;
    height: 36px;
    border: var(--border-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #888888;
}

.social-links a:hover {
    color: var(--color-gold);
    border-color: var(--color-gold);
    background-color: var(--color-dark-gray);
}

.footer-grid h3 {
    font-family: var(--font-alt);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-bg-white);
    margin-bottom: 24px;
}

.footer-links ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    font-size: 0.9rem;
    color: #888888;
}

.footer-links a:hover {
    color: var(--color-gold);
    padding-left: 4px;
}

.footer-contacts p,
.footer-hours p {
    font-size: 0.9rem;
    color: #888888;
    margin-bottom: 12px;
    line-height: 1.5;
}

.footer-contacts a {
    color: #888888;
    font-weight: 500;
}

.footer-contacts a:hover {
    color: var(--color-gold);
}

.footer-contacts strong,
.footer-hours strong {
    color: var(--color-bg-white);
}

/* Footer Bottom */
.footer-bottom {
    border-top: var(--border-dark);
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.copyright p {
    font-size: 0.8rem;
    color: #666666;
}

.copyright .company-details {
    margin-top: 6px;
    font-size: 0.75rem;
    color: #444444;
}

.made-by p {
    font-family: var(--font-alt);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #666666;
}

/* 16. UTILITIES: BACK TO TOP & MOBILE CONTROLS */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: var(--color-black);
    color: var(--color-bg-white);
    width: 46px;
    height: 46px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 99;
    border: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-smooth);
}

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

.back-to-top:hover {
    background-color: var(--color-gold);
    color: var(--color-black);
    transform: translateY(-3px);
}

/* Mobile Navigation Hamburger Menu Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 1010;
}

.menu-toggle .bar {
    width: 100%;
    height: 2px;
    background-color: var(--color-bg-white);
    transition: var(--transition-smooth);
}

body.header-scrolled .menu-toggle .bar {
    background-color: var(--color-black);
}

.menu-toggle.active .bar {
    background-color: var(--color-black) !important;
}

/* 17. RESPONSIVE DESIGN (MEDIA QUERIES) */

@media (max-width: 1024px) {
    .grid-two-cols {
        gap: 40px;
    }
    
    .services-cards {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .testimonials-slider {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .brands-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }
}

@media (max-width: 991px) {
    :root {
        --header-height: 70px;
    }
    
    body {
        font-size: 15px;
    }
    
    .top-bar {
        display: none; /* Hide top bar on mobile for simplicity */
    }
    
    .main-header {
        top: 0; /* Header at the very top since top bar is hidden */
    }
    
    .logo-img {
        height: 32px; /* Scale down logo on mobile header */
    }
    
    .grid-two-cols {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    
    .section-padding {
        padding: 60px 0;
    }
    
    /* Menu mobile */
    .menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        max-width: 300px;
        height: 100vh;
        background-color: var(--color-bg-white);
        box-shadow: -10px 0 30px rgba(0,0,0,0.1);
        padding: 90px 30px 40px 30px;
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        transition: var(--transition-smooth);
        z-index: 1005;
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-menu ul {
        flex-direction: column;
        gap: 20px;
    }
    
    .nav-menu .nav-link {
        font-size: 0.95rem;
        color: var(--color-medium-gray);
    }
    
    .nav-menu .nav-link:hover,
    .nav-menu .nav-link.active {
        color: var(--color-black);
    }
    
    .nav-mobile-footer {
        display: block;
        border-top: var(--border-thin);
        padding-top: 25px;
    }
    
    .nav-mobile-footer p {
        font-family: var(--font-alt);
        font-size: 0.72rem;
        text-transform: uppercase;
        color: var(--color-medium-gray);
        margin-bottom: 12px;
    }
    
    .nav-mobile-footer .btn {
        margin-bottom: 10px;
    }
    
    .header-actions {
        display: none; /* Hide header CTA button on mobile */
    }
    
    /* Menu open state for toggle button */
    .menu-toggle.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    .menu-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .menu-toggle.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    /* Hero Adjustments */
    .hero-section {
        min-height: auto;
        padding: 80px 0 50px 0;
    }
    
    .hero-actions {
        flex-direction: column;
        width: 100%;
        max-width: 320px;
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .trust-logos {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .trust-logo-card {
        padding: 10px;
        min-height: 70px;
    }

    .scroll-down-arrow {
        display: none;
    }
    
    .trust-certificates {
        gap: 20px;
        margin-bottom: 20px;
    }
    
    .cert-img {
        height: 160px;
        max-width: 45%;
        padding: 6px;
    }
    
    /* About block adjustments */
    .about-text-column {
        padding-right: 0;
    }
    
    .about-image-column {
        order: -1; /* Place image on top on mobile */
    }
    
    .floating-badge {
        right: 10px;
        bottom: 10px;
        padding: 15px;
        width: 100px;
    }
    
    .badge-num {
        font-size: 2rem;
    }
    
    .badge-txt {
        font-size: 0.55rem;
    }
    
    /* Brands Grid adjustments */
    .brand-item {
        padding: 30px 15px;
    }
    
    .brand-name {
        font-size: 1.45rem;
    }
    
    /* Lenses block adjustments */
    .lenses-technology-block {
        padding: 25px 15px;
    }
    
    .lenses-tech-img-wrapper {
        min-height: 220px;
    }
    
    .lenses-tech-text {
        padding-left: 0;
        margin-top: 25px;
    }
    
    /* Services Adjustments */
    .services-cards {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .service-card {
        padding: 30px 20px;
    }
    
    /* Testimonial Adjustments */
    .testimonial-card {
        padding: 30px 20px;
    }
    
    .testimonial-text {
        font-size: 1.15rem;
    }
    
    /* Map column adjustments */
    .map-column {
        height: 300px;
    }
    
    .contact-info-column {
        padding-right: 0;
    }
    
    .action-buttons-wrap {
        flex-direction: column;
        gap: 10px;
    }
    
    /* Footer Adjustments */
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    /* Back to top adjustments to prevent text overlaps */
    .back-to-top {
        bottom: 15px;
        right: 15px;
        width: 38px;
        height: 38px;
        opacity: 0.7;
    }
    
    .back-to-top.active {
        opacity: 0.7;
    }
    
    .back-to-top.active:hover {
        opacity: 1;
    }
    
    .back-to-top svg {
        width: 16px;
        height: 16px;
    }
}

/* 18. ANIMATIONS & SCROLL REVEAL */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.fade-in {
    opacity: 0;
    animation: fadeInAnimation 1s forwards cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-in:nth-child(1) { animation-delay: 0.1s; }
.fade-in:nth-child(2) { animation-delay: 0.3s; }
.fade-in:nth-child(3) { animation-delay: 0.5s; }
.fade-in:nth-child(4) { animation-delay: 0.7s; }
.fade-in:nth-child(5) { animation-delay: 0.9s; }

@keyframes fadeInAnimation {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==========================================================================
   19. BLOG GRID AND LATEST ARTICLES SECTION (PREMIUM DESIGN)
   ========================================================================== */
.latest-blog-section {
    border-top: var(--border-thin);
    background-color: var(--color-bg-white);
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px; /* Mais espaçamento entre os cards */
    margin-top: 40px;
}

.blog-card {
    background-color: var(--color-bg-white);
    border: var(--border-thin);
    display: flex;
    flex-direction: column;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.02);
    border-radius: 6px;
    cursor: pointer;
    text-decoration: none;
    color: inherit;
}

.blog-card:hover {
    border-color: var(--color-gold);
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(197, 168, 128, 0.15); /* Sombra dourada premium sutil */
}

/* Container de Imagem Destaque */
.blog-card-img-wrapper {
    position: relative;
    width: 100%;
    height: 220px;
    overflow: hidden;
    background-color: var(--color-dark);
}

.blog-card-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.blog-card:hover .blog-card-img {
    transform: scale(1.08); /* Zoom sutil e elegante */
}

/* Conteúdo Textual */
.blog-card-content {
    padding: 30px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.blog-card-pilar {
    font-family: var(--font-alt);
    font-size: 0.8rem; /* Letras maiores */
    font-weight: 600;
    color: var(--color-gold);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    display: inline-block;
    margin-bottom: 12px;
}

.blog-card-title {
    font-family: var(--font-heading);
    font-size: 1.6rem; /* Fonte Serif maior e mais legível */
    font-weight: 500;
    line-height: 1.35;
    color: var(--color-black);
    margin: 0 0 12px 0;
    transition: var(--transition-smooth);
}

.blog-card:hover .blog-card-title {
    color: var(--color-gold);
}

.blog-card-desc {
    font-family: var(--font-primary);
    font-size: 1.05rem; /* Texto maior e altamente legível para idosos */
    color: #3a3a3c; /* Alto contraste */
    line-height: 1.6;
    margin: 0 0 25px 0;
    display: -webkit-box;
    -webkit-line-clamp: 2; /* Apenas 2 linhas para não encher de texto */
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-card-footer {
    margin-top: auto;
    padding-top: 15px;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}

.blog-card-link {
    font-family: var(--font-alt);
    font-size: 0.85rem; /* Maior e mais legível */
    font-weight: 600;
    color: var(--color-black);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition-smooth);
}

.blog-card:hover .blog-card-link {
    color: var(--color-gold);
    padding-left: 5px;
}

.blog-card-link svg {
    transition: transform 0.3s ease;
}

.blog-card:hover .blog-card-link svg {
    transform: translateX(6px);
}

/* Responsive Blog Adjustments */
@media (max-width: 992px) {
    .blog-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
}

@media (max-width: 768px) {
    .blog-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .blog-card-img-wrapper {
        height: 200px;
    }
    
    .blog-card-content {
        padding: 25px 20px;
    }
    
    .blog-card-title {
        font-size: 1.45rem;
    }
    
    .blog-card-desc {
        font-size: 1rem;
    }
}