:root {
    --primary-color: #5b1842;
    --primary-dark: #3d0f2c;
    --primary-light: #7a2555;
    --secondary-color: #f4a261;
    --accent-gold: #e9c46a;
    --text-dark: #264653;
    --text-light: #6c757d;
    --white: #ffffff;
    --gray-light: #f8f9fa;
    --gray-medium: #e9ecef;
    --success: #2a9d8f;
    --gradient-primary: linear-gradient(135deg, #5b1842 0%, #7a2555 100%);
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.15);
    --shadow-xl: 0 20px 40px rgba(0,0,0,0.2);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
    font-family: 'Montserrat', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
    background-color: var(--white);
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Playfair Display', serif;
    font-weight: 600;
    line-height: 1.2;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Loader */
.loader {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: var(--white);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}

.loader.hidden { opacity: 0; pointer-events: none; }

.loader-logo {
    width: 120px;
    height: auto;
    animation: pulse 2s infinite;
}

/* Reform Alert */
.reform-alert {
    background: linear-gradient(135deg, #2a9d8f 0%, #264653 100%);
    color: var(--white);
    padding: 1rem 2rem;
    text-align: center;
    font-weight: 600;
    font-size: 0.9rem;
}

.reform-alert a { color: var(--accent-gold); text-decoration: underline; }

/* Header */
.header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.header.scrolled {
    background: rgba(91, 24, 66, 0.98);
    box-shadow: var(--shadow-lg);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

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

.logo-image {
    height: 50px;
    width: auto;
    transition: var(--transition);
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--primary-color);
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
    position: relative;
    padding: 0.5rem 0;
}

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

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

.header.scrolled .nav-link { color: var(--white); }
.header.scrolled .logo-image { filter: brightness(0) invert(1); }

/* Buttons */
.btn {
    padding: 0.875rem 1.75rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--secondary-color);
    color: var(--primary-dark);
    box-shadow: 0 4px 15px rgba(244, 162, 97, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(244, 162, 97, 0.5);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255,255,255,0.5);
}

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

.btn-large { padding: 1rem 2.5rem; font-size: 1.05rem; }

/* Mobile Menu */
.mobile-menu {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
    padding: 0.5rem;
    background: none;
    border: none;
}

.mobile-menu span {
    width: 25px; height: 3px;
    background: var(--primary-color);
    transition: var(--transition);
    border-radius: 3px;
}

.header.scrolled .mobile-menu span { background: var(--white); }

/* Hero Section */
.hero {
    margin-top: 80px;
    min-height: calc(100vh - 80px);
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding: 4rem 0;
}

.hero-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%23f4a261" fill-opacity="0.05" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,112C672,96,768,96,864,112C960,128,1056,160,1152,160C1248,160,1344,128,1392,112L1440,96L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>');
    background-size: cover;
    opacity: 0.5;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 3.5rem;
    color: var(--white);
    margin-bottom: 1.5rem;
}

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

.hero-subtitle {
    font-size: 1.2rem;
    color: rgba(255,255,255,0.9);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.hero-badges {
    display: flex;
    gap: 1rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.badge {
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(10px);
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    color: var(--white);
    font-weight: 600;
    font-size: 0.9rem;
    border: 1px solid rgba(255,255,255,0.2);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.cta-group {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-logo {
    width: 100%;
    max-width: 450px;
    height: auto;
    filter: drop-shadow(0 20px 40px rgba(0,0,0,0.3));
    animation: float 6s ease-in-out infinite;
}

/* Sections General */
.section { padding: 6rem 0; }

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

.section-tag {
    display: inline-block;
    background: var(--primary-color);
    color: var(--white);
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.section-tag-light {
    background: var(--white);
    color: var(--primary-color);
}

.section-title {
    font-size: 2.75rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px; left: 50%;
    transform: translateX(-50%);
    width: 80px; height: 4px;
    background: var(--secondary-color);
    border-radius: 2px;
}

.section-title-light { color: var(--white); }
.section-title-light::after { background: var(--secondary-color); }

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-light);
    max-width: 700px;
    margin: 2rem auto 0;
}

.section-subtitle-light { color: rgba(255,255,255,0.9); }

/* About Section */
.about { background: var(--gray-light); }

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
}

.about-image-wrapper {
    background: var(--gradient-primary);
    border-radius: 20px;
    padding: 3rem;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.about-logo {
    width: 250px;
    height: auto;
    filter: drop-shadow(0 10px 20px rgba(0,0,0,0.2));
}

.experience-badge {
    position: absolute;
    bottom: -20px; right: -20px;
    background: var(--secondary-color);
    color: var(--primary-dark);
    padding: 1.5rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.badge-number {
    font-size: 2.5rem;
    font-weight: 800;
    display: block;
    line-height: 1;
}

.badge-text { font-size: 0.875rem; font-weight: 600; }

.about-content h2 { font-size: 2rem; color: var(--primary-color); margin-bottom: 1.5rem; }

.about-text {
    margin-bottom: 1.5rem;
    color: var(--text-light);
    line-height: 1.8;
}

.about-features {
    margin-top: 2rem;
    display: grid;
    gap: 1rem;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-weight: 500;
    color: var(--text-dark);
}

.feature-item i { color: var(--success); font-size: 1.25rem; }

/* Services Section */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--white);
    border-radius: 20px;
    padding: 2.5rem;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 5px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.service-card:hover::before { transform: scaleX(1); }

.service-icon {
    width: 70px; height: 70px;
    background: var(--gray-light);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
    transition: var(--transition);
}

.service-card:hover .service-icon {
    background: var(--primary-color);
    color: var(--white);
}

.service-title {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.service-description {
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.service-list {
    list-style: none;
    margin-bottom: 1.5rem;
}

.service-list li {
    padding: 0.5rem 0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-dark);
    font-size: 0.95rem;
}

.service-list i { color: var(--success); }

.service-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.service-link:hover { gap: 1rem; color: var(--secondary-color); }

/* Tax Reform Section */
.tax-reform {
    background: var(--gradient-primary);
    color: var(--white);
}

.reform-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.reform-column {
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 2.5rem;
    border: 1px solid rgba(255,255,255,0.2);
}

.reform-title {
    font-size: 1.75rem;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.changes .reform-title { color: #90ee90; }
.continues .reform-title { color: var(--accent-gold); }

.reform-list { list-style: none; }

.reform-list li {
    padding: 1rem 0;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    transition: var(--transition);
}

.reform-list li:hover {
    background: rgba(255,255,255,0.05);
    padding-left: 1rem;
    border-radius: 10px;
}

.reform-list i { font-size: 1.25rem; margin-top: 0.25rem; }
.changes .reform-list i { color: #90ee90; }
.continues .reform-list i { color: var(--accent-gold); }

.reform-list strong { display: block; margin-bottom: 0.25rem; }
.reform-list p { font-size: 0.9rem; opacity: 0.9; }

.timeline {
    margin-top: 3rem;
    background: rgba(255,255,255,0.1);
    border-radius: 15px;
    padding: 2rem;
}

.timeline-title {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.timeline-items {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    position: relative;
}

.timeline-items::before {
    content: '';
    position: absolute;
    top: 50%; left: 0; right: 0;
    height: 3px;
    background: rgba(255,255,255,0.3);
    z-index: 0;
}

.timeline-item {
    text-align: center;
    z-index: 1;
    background: var(--primary-color);
    padding: 1rem;
    border-radius: 10px;
    min-width: 100px;
    border: 2px solid rgba(255,255,255,0.2);
}

.timeline-year {
    font-weight: 700;
    font-size: 1.1rem;
    display: block;
}

.timeline-event { font-size: 0.8rem; opacity: 0.9; }

.reform-alert-box {
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 2rem;
    margin-top: 3rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    border-left: 5px solid var(--secondary-color);
}

.alert-icon {
    font-size: 2.5rem;
    color: var(--secondary-color);
}

.alert-content h4 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--accent-gold);
}

/* Areas Section */
.areas { background: var(--gray-light); }

.areas-tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 1rem 2rem;
    border: none;
    background: var(--white);
    color: var(--text-light);
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

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

.areas-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.area-item {
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border-left: 4px solid var(--primary-color);
    text-align: center;
}

.area-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.area-icon {
    width: 60px; height: 60px;
    background: var(--gray-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.5rem;
    color: var(--primary-color);
}

.area-item h4 {
    color: var(--primary-color);
    margin-bottom: 0.75rem;
    font-size: 1.125rem;
}

.area-item p {
    font-size: 0.9rem;
    color: var(--text-light);
}

/* Features Section */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-card {
    text-align: center;
    padding: 2rem;
}

.feature-icon {
    width: 80px; height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: var(--white);
    font-size: 2rem;
    transition: var(--transition);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: var(--shadow-lg);
}

.feature-title {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.feature-text { color: var(--text-light); }

/* Contact Section */
.contact { background: linear-gradient(135deg, var(--gray-light) 0%, var(--white) 100%); }

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info h3 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.contact-intro {
    color: var(--text-light);
    margin-bottom: 2rem;
}

.contact-details {
    margin-top: 2rem;
    display: grid;
    gap: 1.5rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--white);
    border-radius: 15px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.contact-item:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-md);
}

.contact-icon {
    width: 50px; height: 50px;
    background: var(--gray-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.25rem;
    flex-shrink: 0;
}

.contact-text strong {
    display: block;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.contact-text a {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

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

.contact-note {
    display: block;
    font-size: 0.85rem;
    color: var(--text-light);
    margin-top: 0.25rem;
}

.contact-cta {
    margin-top: 2rem;
    padding: 2rem;
    background: var(--gradient-primary);
    border-radius: 15px;
    color: var(--white);
}

.contact-cta h4 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.contact-cta p { margin-bottom: 1.5rem; opacity: 0.9; }

.contact-cta .btn-primary {
    background: var(--white);
    color: var(--primary-color);
}

.map-container {
    background: var(--white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    min-height: 400px;
}

.map-placeholder {
    background: var(--gradient-primary);
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--white);
    padding: 2rem;
    text-align: center;
}

.map-logo {
    width: 120px;
    height: auto;
    margin-bottom: 1rem;
    opacity: 0.9;
}

.map-badges {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 1.5rem;
}

.map-badge {
    background: rgba(255,255,255,0.2);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Footer */
.footer {
    background: var(--primary-dark);
    color: var(--white);
    padding: 4rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-logo {
    height: 60px;
    width: auto;
    margin-bottom: 1rem;
}

.footer-desc {
    color: rgba(255,255,255,0.8);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

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

.social-links a {
    width: 40px; height: 40px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    transition: var(--transition);
    text-decoration: none;
}

.social-links a:hover {
    background: var(--secondary-color);
    transform: translateY(-3px);
}

.footer-title {
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
    font-size: 1.125rem;
}

.footer-list { list-style: none; }

.footer-list li { margin-bottom: 0.75rem; }

.footer-list a {
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-list a:hover {
    color: var(--secondary-color);
    padding-left: 5px;
}

.footer-list i { width: 20px; text-align: center; }

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 2rem;
    text-align: center;
    color: rgba(255,255,255,0.6);
    font-size: 0.875rem;
}

.footer-oab {
    margin-top: 0.5rem;
    font-size: 0.75rem;
}

/* WhatsApp Float */
.whatsapp-float {
    position: fixed;
    bottom: 30px; right: 30px;
    width: 60px; height: 60px;
    background: #25d366;
    color: var(--white);
    border-radius: 50%;
    text-align: center;
    font-size: 2rem;
    line-height: 60px;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    z-index: 100;
    transition: var(--transition);
    animation: pulse 2s infinite;
    text-decoration: none;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(37, 211, 102, 0.6);
}

.whatsapp-tooltip {
    position: absolute;
    right: 70px;
    background: var(--white);
    color: var(--text-dark);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
}

.whatsapp-float:hover .whatsapp-tooltip {
    opacity: 1;
    visibility: visible;
    right: 75px;
}

/* Back to Top */
.back-to-top {
    position: fixed;
    bottom: 100px; right: 30px;
    width: 50px; height: 50px;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 99;
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

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

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    background: var(--primary-light);
}

/* Animations */
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4); }
    50% { box-shadow: 0 4px 30px rgba(37, 211, 102, 0.6); }
}

/* Responsive */
@media (max-width: 1024px) {
    .hero-container, .about-grid, .contact-grid, .reform-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .hero-title { font-size: 2.5rem; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .nav-list { display: none; }
    .mobile-menu { display: flex; }
    
    .nav-list.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%; left: 0; right: 0;
        background: var(--white);
        padding: 2rem;
        box-shadow: var(--shadow-lg);
        gap: 1rem;
    }
    
    .header.scrolled .nav-list.active { background: var(--primary-dark); }
    .header.scrolled .nav-list.active .nav-link { color: var(--white); }
    
    .hero-title { font-size: 2rem; }
    .section-title { font-size: 2rem; }
    .services-grid { grid-template-columns: 1fr; }
    .timeline-items { flex-direction: column; gap: 1rem; }
    .timeline-items::before { display: none; }
    .footer-grid { grid-template-columns: 1fr; }
    
    .whatsapp-float {
        width: 50px; height: 50px;
        font-size: 1.5rem;
        line-height: 50px;
        bottom: 20px; right: 20px;
    }
    
    .back-to-top {
        bottom: 80px; right: 20px;
        width: 45px; height: 45px;
    }
}