/* ========================================
   BioTeraCare - Medical Device Website
   Color Palette: Medical teal, deep navy, white
   ======================================== */

:root {
    --primary: #0B7A75;
    --primary-dark: #064E4B;
    --primary-light: #12A39E;
    --primary-50: rgba(11, 122, 117, 0.05);
    --primary-100: rgba(11, 122, 117, 0.1);
    --primary-200: rgba(11, 122, 117, 0.2);

    --accent: #00B4D8;
    --accent-dark: #0096B7;
    --accent-light: #48CAE4;

    --navy: #0A1628;
    --navy-light: #162035;

    --gold: #D4A843;
    --gold-light: #E8C96A;

    --white: #FFFFFF;
    --gray-50: #F8FAFC;
    --gray-100: #F1F5F9;
    --gray-200: #E2E8F0;
    --gray-300: #CBD5E1;
    --gray-400: #94A3B8;
    --gray-500: #64748B;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1E293B;
    --gray-900: #0F172A;

    --success: #10B981;
    --warning: #F59E0B;
    --danger: #EF4444;

    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
    --shadow-md: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);
    --shadow-lg: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1);
    --shadow-xl: 0 25px 50px -12px rgba(0,0,0,0.25);

    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--gray-700);
    line-height: 1.7;
    background: var(--white);
    overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ---- Gradient Text ---- */
.gradient-text {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ---- Buttons ---- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: var(--white);
    box-shadow: 0 4px 15px rgba(11, 122, 117, 0.3);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(11, 122, 117, 0.4);
}

.btn-secondary {
    background: linear-gradient(135deg, var(--accent-dark), var(--accent));
    color: var(--white);
    box-shadow: 0 4px 15px rgba(0, 180, 216, 0.3);
}
.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 180, 216, 0.4);
}

.btn-outline {
    border: 2px solid var(--primary);
    color: var(--primary);
    background: transparent;
}
.btn-outline:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-2px);
}

.btn-block { width: 100%; }

/* ---- Section Headers ---- */
.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 60px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: var(--primary-100);
    color: var(--primary);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.section-title {
    font-family: 'Playfair Display', serif;
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 700;
    color: var(--navy);
    line-height: 1.2;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 1.05rem;
    color: var(--gray-500);
    line-height: 1.7;
}

/* ========================================
   NAVBAR
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 16px 0;
    transition: var(--transition);
    background: rgba(255,255,255,0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.navbar.scrolled {
    padding: 10px 0;
    background: rgba(255,255,255,0.95);
    box-shadow: var(--shadow);
}

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

.nav-logo {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.logo-letter-b { color: #E65100; }
.logo-letter-t { color: #E65100; }
.logo-letter-c { color: #E65100; }
.logo-vowel { color: #2E7D32; }

.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    padding: 8px 16px;
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--gray-600);
    transition: var(--transition);
}
.nav-link:hover, .nav-link.active {
    color: var(--primary);
    background: var(--primary-50);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
}
.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--navy);
    border-radius: 2px;
    transition: var(--transition);
}
.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ========================================
   HERO
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 60px;
    background: linear-gradient(170deg, var(--white) 0%, var(--gray-50) 50%, rgba(11,122,117,0.03) 100%);
    overflow: hidden;
}

.hero-bg-shapes {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.07;
}
.shape-1 {
    width: 600px; height: 600px;
    background: var(--primary);
    top: -200px; right: -100px;
    animation: float 20s ease-in-out infinite;
}
.shape-2 {
    width: 400px; height: 400px;
    background: var(--accent);
    bottom: -100px; left: -100px;
    animation: float 15s ease-in-out infinite reverse;
}
.shape-3 {
    width: 300px; height: 300px;
    background: var(--gold);
    top: 40%; right: 10%;
    animation: float 18s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.05); }
    66% { transform: translate(-20px, 20px) scale(0.95); }
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-block;
    padding: 8px 20px;
    background: linear-gradient(135deg, var(--primary-50), var(--primary-100));
    border: 1px solid var(--primary-200);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 24px;
    animation: fadeInUp 0.6s ease-out;
}

.hero-title {
    font-family: 'Playfair Display', serif;
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 700;
    color: var(--navy);
    line-height: 1.15;
    margin-bottom: 24px;
    animation: fadeInUp 0.6s ease-out 0.1s both;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--gray-500);
    line-height: 1.8;
    margin-bottom: 36px;
    max-width: 520px;
    animation: fadeInUp 0.6s ease-out 0.2s both;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 48px;
    animation: fadeInUp 0.6s ease-out 0.3s both;
}

.hero-stats {
    display: flex;
    gap: 40px;
    animation: fadeInUp 0.6s ease-out 0.4s both;
}

.stat {
    text-align: center;
}
.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
}
.stat-label {
    display: block;
    font-size: 0.8rem;
    color: var(--gray-400);
    margin-top: 4px;
    font-weight: 500;
}

/* Hero Visual */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 450px;
    animation: fadeIn 1s ease-out 0.3s both;
}

.hero-image-wrapper {
    position: relative;
    width: 280px;
    height: 280px;
}

.pulse-ring {
    position: absolute;
    inset: 0;
    border: 2px solid var(--primary);
    border-radius: 50%;
    opacity: 0;
    animation: pulseRing 3s ease-out infinite;
}
.pulse-ring.delay-1 { animation-delay: 1s; }
.pulse-ring.delay-2 { animation-delay: 2s; }

@keyframes pulseRing {
    0% { transform: scale(0.8); opacity: 0.5; }
    100% { transform: scale(2); opacity: 0; }
}

.hero-icon-container {
    position: absolute;
    inset: 40px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 20px 60px rgba(11, 122, 117, 0.3);
}
.hero-icon-container i {
    font-size: 4rem;
    color: var(--white);
}

.floating-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--navy);
    animation: floatCard 6s ease-in-out infinite;
}
.floating-card i {
    font-size: 1.1rem;
    color: var(--primary);
}

.card-1 { top: 10%; left: 0; animation-delay: 0s; }
.card-2 { bottom: 20%; right: 0; animation-delay: 2s; }
.card-3 { bottom: 5%; left: 10%; animation-delay: 4s; }

@keyframes floatCard {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

.hero-scroll {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    animation: fadeInUp 0.6s ease-out 0.6s both;
}

.scroll-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--gray-400);
    font-size: 0.8rem;
    font-weight: 500;
}
.scroll-indicator i {
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(6px); }
}

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

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* ========================================
   PRODUCTS
   ======================================== */
.products {
    padding: 100px 0;
    background: var(--white);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    align-items: start;
}

.product-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    padding: 36px 30px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--gray-200), var(--gray-100));
    transition: var(--transition);
}
.product-card.featured::before {
    background: linear-gradient(90deg, var(--primary), var(--accent));
}
.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: transparent;
}
.product-card.featured {
    border: 2px solid var(--primary-200);
}
.product-card.featured:hover {
    border-color: transparent;
}

.product-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: var(--primary-100);
    color: var(--primary);
}
.product-badge.supplement {
    background: rgba(0, 180, 216, 0.1);
    color: var(--accent-dark);
}

.product-logo {
    width: 100%;
    height: 200px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-lg);
    background: var(--gray-50);
    overflow: hidden;
}
.product-logo img {
    max-width: 90%;
    max-height: 180px;
    object-fit: contain;
}

.product-name {
    font-family: 'Playfair Display', serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--navy);
    margin-bottom: 4px;
}

.product-tagline {
    font-size: 0.9rem;
    color: var(--accent-dark);
    font-weight: 500;
    margin-bottom: 12px;
}

.product-description {
    font-size: 0.92rem;
    color: var(--gray-500);
    line-height: 1.7;
    margin-bottom: 20px;
}

.product-features {
    margin-bottom: 20px;
}
.product-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 0;
    font-size: 0.88rem;
    color: var(--gray-600);
}
.product-features i {
    color: var(--primary);
    font-size: 0.8rem;
    flex-shrink: 0;
}

.product-certifications {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 24px;
}

.cert-badge {
    padding: 4px 10px;
    background: var(--gray-100);
    border-radius: var(--radius-full);
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--gray-600);
    letter-spacing: 0.5px;
}

/* ========================================
   HOW IT WORKS
   ======================================== */
.how-it-works {
    padding: 100px 0;
    background: var(--gray-50);
}

.steps-grid {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.step-card {
    flex: 1;
    min-width: 220px;
    max-width: 260px;
    text-align: center;
    padding: 32px 24px;
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
}
.step-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.step-number {
    position: absolute;
    top: 12px;
    left: 16px;
    font-size: 0.75rem;
    font-weight: 800;
    color: var(--primary-200);
}

.step-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-50), var(--primary-100));
    border-radius: var(--radius-lg);
}
.step-icon i {
    font-size: 1.5rem;
    color: var(--primary);
}

.step-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--navy);
    margin-bottom: 8px;
}

.step-card p {
    font-size: 0.88rem;
    color: var(--gray-500);
    line-height: 1.6;
}

.step-connector {
    color: var(--gray-300);
    font-size: 1.2rem;
}

/* ========================================
   BENEFITS
   ======================================== */
.benefits {
    padding: 100px 0;
    background: var(--white);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.benefit-card {
    padding: 32px 24px;
    border-radius: var(--radius-xl);
    background: var(--gray-50);
    border: 1px solid var(--gray-100);
    text-align: center;
    transition: var(--transition);
}
.benefit-card:hover {
    background: var(--white);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
    transform: translateY(-4px);
}

.benefit-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 15px rgba(11, 122, 117, 0.2);
}
.benefit-icon i {
    font-size: 1.3rem;
    color: var(--white);
}

.benefit-card h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--navy);
    margin-bottom: 8px;
}

.benefit-card p {
    font-size: 0.88rem;
    color: var(--gray-500);
    line-height: 1.6;
}

/* ========================================
   TESTIMONIALS
   ======================================== */
.testimonials {
    padding: 100px 0;
    background: linear-gradient(170deg, var(--gray-50) 0%, var(--white) 100%);
}

.testimonials-slider {
    position: relative;
    overflow: hidden;
    padding: 0 0 50px;
}

.testimonials-track {
    display: flex;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.testimonial-card {
    flex: 0 0 calc(33.333% - 20px);
    margin: 0 10px;
    padding: 32px;
    background: var(--white);
    border-radius: var(--radius-xl);
    border: 1px solid var(--gray-100);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}
.testimonial-card:hover {
    box-shadow: var(--shadow-md);
}

.testimonial-stars {
    margin-bottom: 16px;
    display: flex;
    gap: 3px;
}
.testimonial-stars i {
    color: var(--gold);
    font-size: 0.9rem;
}

.testimonial-text {
    font-size: 0.95rem;
    color: var(--gray-600);
    line-height: 1.8;
    font-style: italic;
    margin-bottom: 20px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.author-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--primary-100);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.author-avatar i {
    color: var(--primary);
    font-size: 1.1rem;
}

.testimonial-author strong {
    display: block;
    font-size: 0.9rem;
    color: var(--navy);
}
.testimonial-author span {
    font-size: 0.8rem;
    color: var(--gray-400);
}

.slider-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-top: 32px;
}

.slider-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 2px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-500);
    transition: var(--transition);
}
.slider-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-50);
}

.slider-dots {
    display: flex;
    gap: 8px;
}
.slider-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--gray-200);
    transition: var(--transition);
    cursor: pointer;
}
.slider-dot.active {
    background: var(--primary);
    width: 30px;
    border-radius: var(--radius-full);
}

/* ========================================
   CONFERENCES
   ======================================== */
.conferences {
    padding: 100px 0;
    background: var(--gray-50);
}

.conferences-filter {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 22px;
    border-radius: var(--radius-full);
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--gray-500);
    background: var(--white);
    border: 1px solid var(--gray-200);
    transition: var(--transition);
}
.filter-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}
.filter-btn.active {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

.conferences-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.conference-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 18px 20px;
    background: var(--white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-100);
    transition: var(--transition);
}
.conference-card:hover {
    box-shadow: var(--shadow-md);
    border-color: transparent;
    transform: translateX(4px);
}
.conference-card.hidden {
    display: none;
}

.conference-icon-wrap {
    flex-shrink: 0;
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-50);
    border-radius: var(--radius-sm);
}
.conference-icon-wrap i {
    font-size: 1rem;
    color: var(--primary);
}

.conference-info {
    flex: 1;
    min-width: 0;
}

.conference-tag {
    display: inline-block;
    padding: 2px 10px;
    border-radius: var(--radius-full);
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}
.tag-dolor { background: rgba(239, 68, 68, 0.1); color: #DC2626; }
.tag-piel { background: rgba(168, 85, 247, 0.1); color: #9333EA; }
.tag-general { background: rgba(59, 130, 246, 0.1); color: #2563EB; }
.tag-respiratorio { background: rgba(6, 182, 212, 0.1); color: #0891B2; }
.tag-renal { background: rgba(234, 179, 8, 0.1); color: #CA8A04; }
.tag-deportiva { background: rgba(249, 115, 22, 0.1); color: #EA580C; }
.tag-obesidad { background: rgba(236, 72, 153, 0.1); color: #DB2777; }
.tag-diabetes { background: rgba(139, 92, 246, 0.1); color: #7C3AED; }
.tag-digestivo { background: rgba(34, 197, 94, 0.1); color: #16A34A; }
.tag-emocional { background: rgba(99, 102, 241, 0.1); color: #4F46E5; }
.tag-cardiovascular { background: rgba(220, 38, 38, 0.1); color: #B91C1C; }
.tag-tiroides { background: rgba(14, 165, 233, 0.1); color: #0284C7; }
.tag-hormonal { background: rgba(219, 39, 119, 0.1); color: #BE185D; }

.conference-info h4 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--navy);
    margin-bottom: 0;
    line-height: 1.4;
}

.conference-play {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary-50);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    transition: var(--transition);
    text-decoration: none;
}
.conference-play:hover {
    background: var(--primary);
    color: var(--white);
    transform: scale(1.1);
}

/* Conference Search */
.conferences-search {
    display: flex;
    align-items: center;
    gap: 16px;
    max-width: 500px;
    margin: 0 auto 40px;
}

.search-wrapper {
    flex: 1;
    position: relative;
}
.search-wrapper i {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-400);
    font-size: 0.9rem;
}
.search-wrapper input {
    width: 100%;
    padding: 12px 16px 12px 44px;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-full);
    font-family: inherit;
    font-size: 0.92rem;
    color: var(--gray-700);
    background: var(--white);
    transition: var(--transition);
}
.search-wrapper input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-100);
}

.search-count {
    font-size: 0.85rem;
    color: var(--gray-400);
    white-space: nowrap;
}

.conference-play {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--primary-50);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    transition: var(--transition);
}
.conference-play:hover {
    background: var(--primary);
    color: var(--white);
    transform: scale(1.1);
}

.conferences-more {
    text-align: center;
    margin-top: 40px;
}

/* ========================================
   DOCTORS
   ======================================== */
.doctors {
    padding: 100px 0;
    background: var(--white);
}

.doctors-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    max-width: 800px;
    margin: 0 auto;
}

.doctor-card {
    text-align: center;
    padding: 40px 32px;
    border-radius: var(--radius-xl);
    background: var(--gray-50);
    border: 1px solid var(--gray-100);
    transition: var(--transition);
}
.doctor-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: transparent;
    transform: translateY(-4px);
}

.doctor-avatar {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: 50%;
    box-shadow: 0 8px 25px rgba(11, 122, 117, 0.25);
}
.doctor-avatar i {
    font-size: 2rem;
    color: var(--white);
}

.doctor-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--navy);
    margin-bottom: 16px;
}

.doctor-credentials {
    text-align: left;
}
.doctor-credentials li {
    padding: 4px 0;
    font-size: 0.88rem;
    color: var(--gray-500);
    position: relative;
    padding-left: 20px;
}
.doctor-credentials li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 12px;
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: 50%;
}

/* ========================================
   CONTACT
   ======================================== */
.contact {
    padding: 100px 0;
    background: var(--gray-50);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.contact-card-item {
    display: flex;
    gap: 16px;
    padding: 20px 0;
    border-bottom: 1px solid var(--gray-100);
}
.contact-card-item:last-of-type {
    border-bottom: none;
}

.contact-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-50);
    border-radius: var(--radius);
}
.contact-icon i {
    font-size: 1.1rem;
    color: var(--primary);
}

.contact-card-item h4 {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--navy);
    margin-bottom: 4px;
}
.contact-card-item p {
    font-size: 0.88rem;
    color: var(--gray-500);
    line-height: 1.6;
}
.contact-card-item a {
    color: var(--primary);
}
.contact-card-item a:hover {
    color: var(--primary-dark);
}

.contact-social {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}

.social-link {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
    background: var(--primary-50);
    color: var(--primary);
    font-size: 1.1rem;
    transition: var(--transition);
}
.social-link:hover {
    background: var(--primary);
    color: var(--white);
}
.social-link.whatsapp:hover {
    background: #25D366;
}

.contact-form-wrapper {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: 36px;
    box-shadow: var(--shadow);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--navy);
    margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 0.92rem;
    color: var(--gray-700);
    background: var(--gray-50);
    transition: var(--transition);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-100);
    background: var(--white);
}
.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.map-wrapper {
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow);
}

/* ========================================
   WHATSAPP FLOAT
   ======================================== */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #25D366;
    border-radius: 50%;
    color: var(--white);
    font-size: 1.8rem;
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
    z-index: 999;
    transition: var(--transition);
    animation: whatsappPulse 2s ease-in-out infinite;
}
.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 30px rgba(37, 211, 102, 0.5);
}

@keyframes whatsappPulse {
    0%, 100% { box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4); }
    50% { box-shadow: 0 6px 30px rgba(37, 211, 102, 0.6); }
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    background: var(--navy);
    color: var(--gray-300);
    padding: 60px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-logo {
    display: inline-block;
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 16px;
}
.footer-logo .logo-letter-b { color: #FF6D00; }
.footer-logo .logo-letter-t { color: #FF6D00; }
.footer-logo .logo-letter-c { color: #FF6D00; }
.footer-logo .logo-vowel { color: #43A047; }

.footer-brand p {
    font-size: 0.9rem;
    line-height: 1.7;
    max-width: 300px;
}

.footer-links h4 {
    color: var(--white);
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.footer-links li {
    margin-bottom: 8px;
}
.footer-links a {
    font-size: 0.88rem;
    color: var(--gray-400);
    transition: var(--transition);
}
.footer-links a:hover {
    color: var(--primary-light);
    padding-left: 4px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    font-size: 0.85rem;
    color: var(--gray-500);
}

.footer-social {
    display: flex;
    gap: 12px;
}
.footer-social a {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255,255,255,0.05);
    color: var(--gray-400);
    transition: var(--transition);
}
.footer-social a:hover {
    background: var(--primary);
    color: var(--white);
}

/* ========================================
   SCROLL ANIMATIONS
   ======================================== */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }
    .hero-subtitle { margin: 0 auto 36px; }
    .hero-actions { justify-content: center; }
    .hero-stats { justify-content: center; }
    .hero-visual { min-height: 300px; }

    .products-grid { grid-template-columns: 1fr; max-width: 500px; margin: 0 auto; }
    .benefits-grid { grid-template-columns: repeat(2, 1fr); }
    .steps-grid { flex-direction: column; }
    .step-connector { transform: rotate(90deg); }
    .step-card { max-width: 100%; }
    .conferences-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        padding: 80px 24px 24px;
        gap: 8px;
        transition: var(--transition-slow);
        box-shadow: var(--shadow-xl);
    }
    .nav-menu.active { right: 0; }
    .nav-toggle { display: flex; z-index: 1001; }

    .hero { padding-top: 100px; min-height: auto; }
    .hero-title { font-size: 2rem; }
    .hero-stats { gap: 24px; }

    .testimonial-card {
        flex: 0 0 calc(100% - 20px);
    }

    .form-row { grid-template-columns: 1fr; }

    .footer-grid { grid-template-columns: 1fr; gap: 30px; }
    .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }

    .whatsapp-float { bottom: 20px; right: 20px; width: 52px; height: 52px; font-size: 1.5rem; }
}

@media (max-width: 480px) {
    .benefits-grid { grid-template-columns: 1fr; }
    .hero-stats { flex-direction: column; gap: 16px; }
    .hero-actions { flex-direction: column; }
    .hero-actions .btn { width: 100%; }
    .conferences-filter { gap: 6px; }
    .filter-btn { padding: 8px 14px; font-size: 0.8rem; }
    .conference-card { flex-direction: column; text-align: center; }
    .conference-icon-wrap { margin: 0 auto; }
}