/* ==================================
   CSS Variables & Theming
================================== */
:root {
    /* Colors - Premium Medical Palette */
    --clr-navy: #233C67;
    --clr-navy-light: var(--clr-navy);
    --clr-white: #FFFFFF;
    --clr-gray-light: #F8F9FA;
    --clr-gray: rgba(35, 60, 103, 0.6); /* Transparence de Navy */
    --clr-copper: #CD9A50;
    --clr-copper-hover: #B58444;

    /* Typography */
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;

    /* Transitions */
    --transition-smooth: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--clr-white);
    color: var(--clr-navy);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-family: var(--font-heading);
    color: var(--clr-navy);
}

a {
    text-decoration: none;
    color: inherit;
}

/* Focus visible pour accessibilité clavier */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--clr-copper);
    outline-offset: 2px;
}

/* Lien d'évitement (skip link) pour la navigation au clavier */
.skip-link {
    position: absolute;
    top: -100px;
    left: 1rem;
    padding: 0.5rem 1rem;
    background: var(--clr-navy);
    color: var(--clr-white);
    font-weight: 600;
    z-index: 10000;
    transition: top 0.2s;
}
.skip-link:focus {
    top: 1rem;
}

ul {
    list-style: none;
}

/* ==================================
   Typography Classes
================================== */
.subtitle {
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--clr-copper);
    display: block;
    margin-bottom: 1rem;
}

/* ==================================
   Buttons
================================== */
.btn-primary, .btn-secondary {
    display: inline-block;
    padding: 0.8rem 1.8rem;
    border-radius: 4px;
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition-smooth);
    cursor: pointer;
}

.btn-primary {
    background-color: var(--clr-copper);
    color: var(--clr-white);
    border: 2px solid var(--clr-copper);
}

.btn-primary:hover {
    background-color: var(--clr-copper-hover);
    border-color: var(--clr-copper-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(205, 154, 80, 0.3);
}

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

.btn-secondary:hover {
    background-color: var(--clr-white);
    color: var(--clr-navy);
    transform: translateY(-2px);
}

/* ==================================
   Navigation (Glassmorphism)
================================== */
.glass-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(205, 154, 80, 0.92); /* Kerox Gold */
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
    transition: var(--transition-smooth);
    padding: 1.2rem 0;
}

.glass-nav.scrolled {
    padding: 0.8rem 0;
    background: rgba(205, 154, 80, 0.98);
    box-shadow: 0 4px 20px rgba(35, 60, 103, 0.15);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--clr-white);
}

.logo a {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: inherit;
}

/* Logo sur barre dorée : fond léger pour détacher du cuivre */
.glass-nav .logo a {
    padding: 0.35rem 0.75rem;
    background: rgba(255, 255, 255, 0.28);
    border-radius: 8px;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.35), 0 1px 4px rgba(35, 60, 103, 0.18);
}

.logo img {
    height: 42px;
    width: auto;
    object-fit: contain;
    display: block;
}

.glass-nav .logo img {
    filter: drop-shadow(0 1px 2px rgba(35, 60, 103, 0.35));
}

.logo-accent {
    color: var(--clr-white);
}

.logo .logo-fallback {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
}

/* Fallback texte sur pastille claire : lisible (navy + cuivre) */
.glass-nav .logo .logo-fallback {
    color: var(--clr-navy);
}

.glass-nav .logo .logo-fallback .logo-accent {
    color: var(--clr-copper);
}

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

.nav-links a {
    color: var(--clr-white);
    font-weight: 600;
    transition: var(--transition-smooth);
    font-size: 0.95rem;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--clr-navy);
}

/* Dropdown */
.nav-item {
    position: relative;
}

.dropdown {
    display: none;
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--clr-white);
    border: 1px solid var(--clr-gray-light);
    border-radius: 0 0 8px 8px;
    box-shadow: 0 10px 30px rgba(35, 60, 103, 0.12);
    min-width: 180px;
    overflow: hidden;
    z-index: 999;
    padding-top: 0.5rem;
    animation: dropdownFade 0.3s ease;
}

@keyframes dropdownFade {
    from { opacity: 0; transform: translateX(-50%) translateY(-10px); }
    to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

.nav-item:hover .dropdown,
.nav-item.is-open .dropdown {
    display: block;
}

.dropdown a {
    display: block;
    padding: 0.7rem 1.2rem;
    color: var(--clr-navy) !important;
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition-smooth);
    border-bottom: 1px solid var(--clr-gray-light);
}

.dropdown a:last-child {
    border-bottom: none;
}

.dropdown a:hover,
.dropdown a.active {
    background-color: var(--clr-copper);
    color: var(--clr-white) !important;
}

.dropdown-arrow {
    font-size: 0.7rem;
    margin-left: 0.3rem;
    display: inline-block;
    transition: transform 0.3s;
}

.nav-item:hover .dropdown-arrow,
.nav-item.is-open .dropdown-arrow {
    transform: rotate(180deg);
}

/* ==================================
   Hero Section
================================== */
.hero-section {
    position: relative;
    min-height: auto;
    background-color: var(--clr-white);
    display: flex;
    align-items: center;
    padding: 7rem 2rem 4rem;
    overflow: hidden;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    position: relative;
    z-index: 2;
    padding-top: 0;
}

.hero-content h1 {
    font-size: clamp(3rem, 5vw, 4.5rem);
    color: var(--clr-navy);
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero-content p {
    font-size: 1.1rem;
    color: var(--clr-navy);
    opacity: 0.8;
    max-width: 500px;
    margin-bottom: 2.5rem;
}

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

/* Decorative background shape */
.hero-shape {
    position: absolute;
    right: -5%;
    top: 50%;
    transform: translateY(-50%);
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(205,154,80,0.08) 0%, rgba(255,255,255,0) 70%);
    border-radius: 50%;
    z-index: 1;
}

/* ==================================
   Products Section
================================== */
.products-section {
    padding: 3rem 2rem 5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.section-header p {
    color: var(--clr-navy); opacity: 0.7;
    font-size: 1.1rem;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
}

.product-card {
    background: var(--clr-white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    transition: var(--transition-smooth);
    border: 1px solid rgba(0,0,0,0.03);
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(35, 60, 103, 0.15);
    background-color: var(--clr-copper);
    border-color: var(--clr-copper);
}

.product-card:hover h3, .product-card:hover p {
    color: var(--clr-navy);
    opacity: 1;
}

.card-image {
    height: 220px;
    background-color: var(--clr-gray-light);
    position: relative;
    overflow: hidden;
}

.card-image.zircone { background: var(--clr-gray-light); }
.card-image.pmma { background: var(--clr-gray-light); }
.card-image.equipement { background: var(--clr-gray-light); }

.card-content {
    padding: 2rem;
}

.card-content h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
}

.card-content p {
    color: var(--clr-navy); opacity: 0.8;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.link-btn {
    color: var(--clr-navy);
    font-weight: 600;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    border-bottom: 2px solid transparent;
    transition: var(--transition-smooth);
}

.link-btn span {
    color: var(--clr-copper);
    transition: var(--transition-smooth);
}

.link-btn:hover {
    color: var(--clr-copper);
}

.link-btn:hover span {
    transform: translateX(5px);
}

/* ==================================
   Gamme Zircone Section
================================== */
.zirconia-detail-section {
    padding: 4rem 2rem 6rem;
    max-width: 1200px;
    margin: 0 auto;
}

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

.zirc-card {
    background: var(--clr-white);
    border: 1px solid var(--clr-gray-light);
    border-radius: 8px;
    padding: 2.5rem 2rem;
    position: relative;
    transition: var(--transition-smooth);
}

.zirc-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(35, 60, 103, 0.15);
    background-color: var(--clr-copper);
    border-color: var(--clr-copper);
}

.zirc-card:hover h3, .zirc-card:hover p, .zirc-card:hover p strong, .zirc-card-premium:hover p, .zirc-card-premium:hover p strong {
    color: var(--clr-navy);
    opacity: 1;
}

.zirc-card:hover .tag {
    background-color: rgba(255, 255, 255, 0.3);
    color: var(--clr-navy);
}

.subtitle-slogan {
    display: inline-block;
    background-color: var(--clr-navy);
    color: var(--clr-white);
    padding: 0.4rem 1rem;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1.5rem;
    box-shadow: 0 4px 10px rgba(35, 60, 103, 0.15);
}

.zirc-badge {
    position: absolute;
    top: -12px;
    right: 20px;
    background: linear-gradient(135deg, var(--clr-copper), #b85f2c);
    color: var(--clr-white);
    padding: 0.3rem 1rem;
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: 20px;
    box-shadow: 0 4px 10px rgba(205, 154, 80, 0.3);
}

.zirc-img {
    width: 100%;
    max-width: 220px;
    height: auto;
    display: block;
    margin: 0 auto 1.5rem auto;
    filter: drop-shadow(0 8px 15px rgba(0,0,0,0.08));
    transition: transform 0.4s ease;
}

.zirc-card:hover .zirc-img {
    transform: scale(1.05) translateY(-5px);
}

/* ==================================
   Premium Card (3DML) Style
================================== */
.zirc-card-premium {
    background-color: var(--clr-white);
    border: 2px solid var(--clr-copper);
    color: var(--clr-navy);
}

.zirc-card-premium h3 {
    color: var(--clr-navy);
}

.zirc-card-premium p {
    color: var(--clr-navy);
    opacity: 0.8;
}

.zirc-card-premium p strong {
    color: var(--clr-copper);
}

.zirc-card-premium .tag {
    background-color: rgba(205, 154, 80, 0.1);
    color: var(--clr-copper);
}

.zirc-card-premium:hover {
    box-shadow: 0 15px 35px rgba(35, 60, 103, 0.15);
    border-color: var(--clr-copper);
}

.zirc-card h3 {
    font-size: 1.4rem;
    margin-bottom: 0.8rem;
}

.zirc-card p {
    font-size: 0.95rem;
    color: var(--clr-navy); opacity: 0.8;
    margin-bottom: 1.5rem;
}

.zirc-card p strong {
    color: var(--clr-copper);
    display: block;
    margin-bottom: 0.2rem;
    font-size: 0.9rem;
}

.zirc-specs p {
    margin-bottom: 1rem;
}

.zirc-specs ul {
    list-style: none;
    margin-bottom: 1.5rem;
}

.zirc-specs li {
    font-size: 0.85rem;
    color: var(--clr-navy);
    opacity: 0.9;
    margin-bottom: 0.4rem;
    padding-left: 1.2rem;
    position: relative;
    line-height: 1.4;
}

.zirc-specs li::before {
    content: "•";
    color: var(--clr-copper);
    position: absolute;
    left: 0;
    font-size: 1.2rem;
    font-weight: bold;
    top: -3px;
    transition: color 0.3s;
}

.zirc-card:hover .zirc-specs li::before, .zirc-card-premium:hover .zirc-specs li::before {
    color: var(--clr-white);
}

.zirc-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.tag {
    background-color: var(--clr-gray-light);
    color: var(--clr-navy-light);
    padding: 0.3rem 0.8rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
}

/* ==================================
   About Section
================================== */
.about-section {
    background-color: var(--clr-navy-light);
    color: var(--clr-white);
    padding: 6rem 2rem;
}

.about-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 4rem;
    align-items: center;
}

.about-image {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(35, 60, 103, 0.15);
    border: 1px solid var(--clr-gray-light);
}

.about-text h2 {
    color: var(--clr-white);
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.about-text p {
    color: rgba(255, 255, 255, 0.85); /* Plus lisible sur fond marine */
    font-size: 1.1rem;
    max-width: 600px;
    margin-bottom: 2rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    max-width: 500px;
}

.stat-item h4 {
    color: var(--clr-copper);
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.stat-item p {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 0;
}

/* ==================================
   CTA Section
================================== */
.cta-section {
    padding: 6rem 2rem;
    background-color: var(--clr-navy);
    color: var(--clr-white);
    text-align: center;
}

.cta-content {
    max-width: 800px;
    margin: 0 auto;
}

.cta-content h2 {
    color: var(--clr-white);
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.cta-content p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.2rem;
    margin-bottom: 2.5rem;
}

/* ==================================
   Footer
================================== */
.footer {
    background-color: var(--clr-navy);
    padding: 4rem 2rem 2rem;
    color: var(--clr-gray);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    padding-bottom: 3rem;
}

.footer-links p {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 0.8rem;
    color: rgba(255, 255, 255, 0.7);
}

.footer-links a,
.footer-bottom a {
    color: rgba(255, 255, 255, 0.8);
    transition: color 0.2s;
}
.footer-links a:hover,
.footer-bottom a:hover {
    color: var(--clr-copper);
}

.footer-icon {
    width: 20px;
    height: 20px;
    fill: var(--clr-copper);
}

.footer-brand h2 {
    color: var(--clr-white);
    margin-bottom: 1rem;
}

.footer-links h3,
.footer-social h3 {
    color: var(--clr-white);
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

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

.footer-social .social-icon {
    width: 28px;
    height: 28px;
    fill: rgba(255, 255, 255, 0.7);
    transition: fill 0.2s;
}

.footer-social a:hover .social-icon {
    fill: var(--clr-copper);
}

.footer-bottom {
    text-align: center;
    font-size: 0.85rem;
}

/* ==================================
   Page Hero (sous-pages)
================================== */
.page-hero {
    background-color: var(--clr-navy);
    padding: 10rem 2rem 5rem;
    text-align: center;
}

.page-hero-content {
    max-width: 700px;
    margin: 0 auto;
}

.page-hero h1 {
    font-size: clamp(2.2rem, 4vw, 3.5rem);
    color: var(--clr-white);
    line-height: 1.15;
    margin-bottom: 1.2rem;
}

.page-hero p {
    font-size: 1.1rem;
    color: rgba(255,255,255,0.75);
    max-width: 550px;
    margin: 0 auto;
}

.page-hero .subtitle-slogan {
    margin: 0 auto 1.5rem auto;
    display: inline-block;
}

/* ==================================
   CTA Section
================================== */
.cta-section {
    background-color: var(--clr-navy);
    padding: 5rem 2rem;
    text-align: center;
}

.cta-content {
    max-width: 600px;
    margin: 0 auto;
}

.cta-content h2 {
    color: var(--clr-white);
    font-size: 2rem;
    margin-bottom: 1rem;
}

.cta-content p {
    color: rgba(255,255,255,0.75);
    margin-bottom: 2rem;
    font-size: 1rem;
}

/* ==================================
   Animations
================================== */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

.delay-1 { transition-delay: 0.2s; }
.delay-2 { transition-delay: 0.4s; }

/* Floating WhatsApp */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background-color: #25d366;
    color: #FFF;
    border-radius: 50px;
    text-align: center;
    font-size: 30px;
    box-shadow: 2px 2px 3px #999;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    color: #FFF;
}

.whatsapp-icon {
    width: 35px;
    height: 35px;
    fill: white;
}

/* ==================================
   Mobile Menu (Hamburger)
================================== */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: 8px;
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--clr-white);
    z-index: 1001;
    transition: var(--transition-smooth);
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: currentColor;
    border-radius: 2px;
    transition: var(--transition-smooth);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(35, 60, 103, 0.98);
    z-index: 999;
    padding: 5rem 2rem 2rem;
    overflow-y: auto;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    pointer-events: none;
}

.mobile-menu.is-open {
    display: block;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.mobile-menu ul {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.mobile-menu a {
    display: block;
    padding: 1rem 0;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--clr-white);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: color 0.2s;
}

.mobile-menu a:hover {
    color: var(--clr-copper);
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links { display: none; }
    .nav-toggle { display: flex; }
    .hero-actions { flex-direction: column; }
    .hero-content h1 { font-size: 2.5rem; }
    .about-container { grid-template-columns: 1fr; }
}

/* --- Matrice de Performance Originale Shamed --- */
.matrix-section { padding: 8rem 2rem; background: var(--clr-gray-light); }
.matrix-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 2rem; max-width: 1300px; margin: 0 auto; }

.matrix-card { 
    background: white; padding: 2.5rem; border-radius: 20px; 
    border: 1px solid rgba(35, 60, 103, 0.05); 
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative; /* On retire overflow:hidden pour voir le badge */
}

.matrix-card:hover { transform: translateY(-10px); box-shadow: 0 30px 60px rgba(35, 60, 103, 0.12); }
.matrix-card.featured { border: 2px solid var(--clr-copper); }

.matrix-card h3 { font-size: 1.8rem; margin-bottom: 1.5rem; display: flex; align-items: center; justify-content: space-between; font-family: var(--font-heading); color: var(--clr-navy); }

.performance-metric { margin-bottom: 1.5rem; }
.metric-label { font-size: 0.8rem; text-transform: uppercase; font-weight: 600; color: var(--clr-navy); opacity: 0.6; display: flex; justify-content: space-between; margin-bottom: 0.5rem; }

/* Jauge visuelle (Barre de chargement premium) */
.gauge-bar { width: 100%; height: 6px; background: #eee; border-radius: 10px; overflow: hidden; }
.gauge-fill { height: 100%; border-radius: 10px; transition: width 1s ease-out; }
.fill-copper { background: linear-gradient(90deg, var(--clr-copper), #b85f2c); }
.fill-navy { background: var(--clr-navy); }

.indications-list { font-size: 0.9rem; margin: 1.5rem 0; color: var(--clr-navy); opacity: 0.8; height: 3.6rem; overflow: hidden; line-height: 1.4; }

.btn-matrix-pdf { 
    display: block; 
    text-align: center; 
    background-color: var(--clr-navy);
    color: white !important; 
    padding: 1rem; 
    border-radius: 8px; 
    font-weight: 700; 
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 1px;
    text-decoration: none; 
    transition: all 0.3s ease;
    border: none;
    box-shadow: 0 4px 15px rgba(35, 60, 103, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-matrix-pdf:hover { 
    background-color: var(--clr-copper); 
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(205, 154, 80, 0.4);
}