/* Design System & Variables */
:root {
    /* Brand Colors */
    --color-primary: #0B2545;
    /* Dark Navy from 'Dent' */
    --color-primary-light: #1A3A66;
    --color-secondary: #EAA92A;
    /* Gold from 'Star' */
    --color-secondary-hover: #D4961E;

    /* Neutrals */
    --color-bg: #FFFFFF;
    --color-bg-alt: #F8F9FA;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-white: #FFFFFF;

    /* Typography */
    --font-main: 'Inter', system-ui, -apple-system, sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;

    /* Effects */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-full: 9999px;

    /* Transitions */
    --transition-base: all 0.3s ease;
}

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

body {
    font-family: var(--font-main);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.6;
    overflow-x: hidden;
}

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

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

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

/* Typography Utilities */
h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--color-primary);
    font-weight: 700;
    line-height: 1.2;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    text-align: center;
    transition: var(--transition-base);
}

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

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

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

.btn-outline:hover {
    background-color: var(--color-secondary);
    color: var(--color-primary);
}

/* Navbar */
.navbar {
    background-color: var(--color-white);
    box-shadow: var(--shadow-sm);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    padding: var(--spacing-sm) 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 50px;
    width: auto;
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
    list-style: none;
}

.nav-link {
    font-weight: 500;
    color: var(--color-primary);
}

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

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    font-size: 1.5rem;
    color: var(--color-primary);
}

/* Media Queries */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--color-white);
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-md);
        text-align: center;
    }

    .nav-links.active {
        display: flex;
    }

    /* Mobile Menu Toggle */
    .menu-toggle {
        display: block;
    }
}

/* Sections General */
.section {
    padding: var(--spacing-xl) 0;
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    background-image: url('assets/hero-bg.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    display: flex;
    align-items: center;
    color: var(--color-white);
    margin-top: 70px;
    /* Offset for fixed navbar */
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(11, 37, 69, 0.9) 0%, rgba(11, 37, 69, 0.6) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero-content h1 {
    font-size: 3.5rem;
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
    line-height: 1.1;
}

.hero-content .text-highlight {
    color: var(--color-secondary);
}

.hero-content p {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    max-width: 600px;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
}

.btn-outline-light {
    border: 2px solid var(--color-white);
    color: var(--color-white);
}

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

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.about-image {
    background-color: var(--color-bg-alt);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: var(--shadow-md);
}

.about-img-logo {
    max-width: 80%;
    height: auto;
}

.about-text h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

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

.about-text p {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-light);
}

.about-features {
    list-style: none;
    margin-top: var(--spacing-md);
}

.about-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
}

.about-features i {
    color: var(--color-secondary);
}

/* Media Queries Update */
@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }

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

    .about-features {
        display: inline-block;
        text-align: left;
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        width: 100%;
    }
}

/* Products Section */
.products-section {
    background-color: var(--color-bg-alt);
}

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

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-xs);
}

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

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

.product-card {
    background-color: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
    text-align: center;
}

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

.icon-wrapper {
    width: 80px;
    height: 80px;
    background-color: rgba(234, 169, 42, 0.1);
    /* Low opacity secondary */
    color: var(--color-secondary);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2rem;
    margin: 0 auto var(--spacing-sm);
    transition: var(--transition-base);
}

.product-card:hover .icon-wrapper {
    background-color: var(--color-secondary);
    color: var(--color-white);
}

.product-card h3 {
    margin-bottom: var(--spacing-xs);
    font-size: 1.25rem;
}

.product-card p {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
    font-size: 0.95rem;
}

.card-link {
    color: var(--color-primary);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.card-link:hover {
    gap: 1rem;
    /* Arrow animation */
    color: var(--color-secondary);
}

/* Contact Section */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.contact-info h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-xs);
}

.contact-info>p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-light);
}

.info-item {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.info-item i {
    color: var(--color-secondary);
    font-size: 1.5rem;
    margin-top: 0.25rem;
}

.info-item h4 {
    margin-bottom: 0.25rem;
    font-size: 1.1rem;
}

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

.social-links a {
    width: 40px;
    height: 40px;
    background-color: var(--color-primary);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: var(--transition-base);
}

.social-links a:hover {
    filter: brightness(1.1);
    transform: rotate(360deg);
}

.social-links a:nth-child(1) {
    background-color: #1877F2;
    /* Facebook */
}

.social-links a:nth-child(2) {
    background: radial-gradient(circle at 30% 107%, #fdf497 0%, #fdf497 5%, #fd5949 45%, #d6249f 60%, #285AEB 90%);
    /* Instagram */
}

.social-links a:nth-child(3) {
    background-color: #25D366;
    /* WhatsApp */
}

.contact-form-wrapper {
    background-color: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-bg-alt);
}

.form-group {
    margin-bottom: var(--spacing-sm);
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: var(--radius-sm);
    font-family: inherit;
    transition: var(--transition-base);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-secondary);
    box-shadow: 0 0 0 3px rgba(234, 169, 42, 0.2);
}

.btn-block {
    display: block;
    width: 100%;
}

/* Footer */
.footer {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-md) 0;
    text-align: center;
}

/* Responsive Fixes for Products/Contact */
@media (max-width: 768px) {
    .contact-container {
        grid-template-columns: 1fr;
    }

    .contact-form-wrapper {
        order: -1;
        /* Form first on mobile usually better? No, keep info first or user choice. Let's keep order default. */
    }

    .section-header h2,
    .contact-info h2 {
        font-size: 2.5rem;
    }
}

@media (max-width: 900px) {
    .brand-center {
        display: none !important;
    }

    .logo img {
        height: 40px;
    }
}

/* ===== TRUST BAR ===== */
.trust-bar { background:#fff; border-bottom:1px solid #eee; padding:1.25rem 0; }
.trust-bar-inner { display:flex; justify-content:center; gap:2.5rem; flex-wrap:wrap; }
.trust-item { display:flex; align-items:center; gap:0.6rem; font-size:0.95rem; font-weight:600; color:var(--color-primary); }
.trust-item i { color:var(--color-secondary); font-size:1.2rem; }

/* ===== BRANDS STRIP ===== */
.brands-strip { background:var(--color-primary); padding:1.25rem 0; overflow:hidden; }
.brands-strip-inner { display:flex; align-items:center; gap:3rem; justify-content:center; flex-wrap:wrap; }
.brand-badge { display:flex; align-items:center; gap:0.5rem; color:rgba(255,255,255,0.85); font-size:0.9rem; font-weight:600; white-space:nowrap; }
.brand-badge i { color:var(--color-secondary); }
.brands-divider { color:rgba(255,255,255,0.25); font-size:1.5rem; }

/* ===== BENEFITS ===== */
.benefits-section { background:#fff; }
.benefits-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(220px,1fr)); gap:var(--spacing-md); margin-top:var(--spacing-md); }
.benefit-card { background:var(--color-bg-alt); border-radius:var(--radius-lg); padding:var(--spacing-md); text-align:center; border-top:4px solid var(--color-secondary); transition:var(--transition-base); }
.benefit-card:hover { transform:translateY(-6px); box-shadow:var(--shadow-lg); }
.benefit-icon { width:64px; height:64px; background:linear-gradient(135deg,var(--color-primary),var(--color-primary-light)); border-radius:50%; display:flex; align-items:center; justify-content:center; margin:0 auto var(--spacing-sm); font-size:1.6rem; color:var(--color-secondary); }
.benefit-card h3 { font-size:1.1rem; margin-bottom:0.4rem; }
.benefit-card p { color:var(--color-text-light); font-size:0.9rem; }

/* ===== TESTIMONIALS ===== */
.testimonials-section { background:var(--color-bg-alt); }
.testimonials-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(280px,1fr)); gap:var(--spacing-md); margin-top:var(--spacing-md); }
.testimonial-card { background:#fff; border-radius:var(--radius-lg); padding:var(--spacing-md); box-shadow:var(--shadow-md); position:relative; transition:var(--transition-base); }
.testimonial-card:hover { transform:translateY(-4px); box-shadow:var(--shadow-lg); }
.testimonial-card::before { content:'\201C'; font-size:5rem; color:var(--color-secondary); opacity:0.15; position:absolute; top:-0.5rem; left:1rem; line-height:1; font-family:Georgia,serif; }
.stars { color:#F5A623; margin-bottom:0.75rem; }
.testimonial-text { color:var(--color-text); margin-bottom:1rem; font-style:italic; font-size:0.95rem; }
.testimonial-author { display:flex; align-items:center; gap:0.75rem; }
.author-avatar { width:48px; height:48px; border-radius:50%; background:linear-gradient(135deg,var(--color-primary),var(--color-secondary)); display:flex; align-items:center; justify-content:center; color:#fff; font-weight:700; font-size:1.1rem; flex-shrink:0; }
.author-name { font-weight:700; color:var(--color-primary); font-size:0.95rem; }
.author-clinic { color:var(--color-text-light); font-size:0.8rem; }
.stats-row { display:flex; justify-content:center; gap:3rem; margin-top:var(--spacing-lg); flex-wrap:wrap; }
.stat-item { text-align:center; }
.stat-number { font-size:2.5rem; font-weight:700; color:var(--color-primary); line-height:1; }
.stat-number span { color:var(--color-secondary); }
.stat-label { color:var(--color-text-light); font-size:0.9rem; margin-top:0.25rem; }

/* ===== FAQ ===== */
.faq-section { background:#fff; }
.faq-list { max-width:780px; margin:var(--spacing-md) auto 0; }
.faq-item { border:1px solid #e8eaf0; border-radius:var(--radius-md); margin-bottom:0.75rem; overflow:hidden; transition:var(--transition-base); }
.faq-item.open { border-color:var(--color-secondary); box-shadow:0 0 0 3px rgba(234,169,42,0.15); }
.faq-question { width:100%; display:flex; justify-content:space-between; align-items:center; padding:1.1rem 1.25rem; background:none; cursor:pointer; font-weight:600; font-size:1rem; color:var(--color-primary); text-align:left; gap:1rem; }
.faq-question i { color:var(--color-secondary); transition:transform 0.3s ease; flex-shrink:0; }
.faq-item.open .faq-question i { transform:rotate(45deg); }
.faq-answer { max-height:0; overflow:hidden; transition:max-height 0.4s ease, padding 0.3s ease; padding:0 1.25rem; color:var(--color-text-light); font-size:0.95rem; }
.faq-item.open .faq-answer { max-height:200px; padding:0 1.25rem 1.1rem; }

/* ===== CTA BANNER ===== */
.cta-banner { background:linear-gradient(135deg,var(--color-primary) 0%,#1A3A66 100%); padding:var(--spacing-lg) 0; text-align:center; position:relative; overflow:hidden; }
.cta-banner::before { content:''; position:absolute; inset:0; background:radial-gradient(circle at 70% 50%,rgba(234,169,42,0.12) 0%,transparent 60%); }
.cta-banner .container { position:relative; z-index:1; }
.cta-banner h2 { color:#fff; font-size:2.2rem; margin-bottom:0.75rem; }
.cta-banner p { color:rgba(255,255,255,0.8); font-size:1.1rem; margin-bottom:var(--spacing-md); }
.cta-banner-buttons { display:flex; gap:1rem; justify-content:center; flex-wrap:wrap; }
.btn-light { background:#fff; color:var(--color-primary); font-weight:700; padding:0.85rem 2rem; border-radius:var(--radius-full); transition:var(--transition-base); display:inline-block; }
.btn-light:hover { background:var(--color-secondary); transform:translateY(-2px); box-shadow:var(--shadow-md); }
.btn-outline-white { border:2px solid #fff; color:#fff; font-weight:700; padding:0.85rem 2rem; border-radius:var(--radius-full); transition:var(--transition-base); display:inline-block; }
.btn-outline-white:hover { background:#fff; color:var(--color-primary); }

/* ===== FLOATING WHATSAPP ===== */
.whatsapp-float { position:fixed; bottom:2rem; right:2rem; z-index:9999; width:60px; height:60px; background:#25D366; border-radius:50%; display:flex; align-items:center; justify-content:center; color:#fff; font-size:1.8rem; box-shadow:0 4px 20px rgba(37,211,102,0.5); transition:var(--transition-base); animation:pulse-wa 2.5s infinite; }
.whatsapp-float:hover { transform:scale(1.12); background:#1ebe5d; }
@keyframes pulse-wa { 0%,100%{box-shadow:0 4px 20px rgba(37,211,102,0.5)} 50%{box-shadow:0 4px 35px rgba(37,211,102,0.8)} }

/* ===== SCROLL REVEAL ===== */
.reveal { opacity:0; transform:translateY(30px); transition:opacity 0.65s ease, transform 0.65s ease; }
.reveal.visible { opacity:1; transform:translateY(0); }
.reveal-delay-1 { transition-delay:0.1s; }
.reveal-delay-2 { transition-delay:0.2s; }
.reveal-delay-3 { transition-delay:0.3s; }
.reveal-delay-4 { transition-delay:0.4s; }