:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #f0f2f5;
    --text-primary: #1a1a1a;
    --text-secondary: #4a4a4a;
    --text-tertiary: #7a7a7a;
    --accent-primary: #0066ff;
    --accent-secondary: #ff6b35;
    --accent-tertiary: #00d4aa;
    --border-color: #e0e0e0;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.1);
    --nav-height: 70px;
    --transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

ul {
    list-style: none;
}

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

/* Scroll Progress Bar */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    z-index: 2000;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    height: var(--nav-height);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 5%;
    z-index: 1000;
    transition: all 0.3s ease;
}

nav:hover {
    box-shadow: var(--shadow-sm);
}

.logo {
    font-size: 1.3rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--text-primary);
    transition: var(--transition);
}

.logo:hover {
    color: var(--accent-primary);
}

.nav-links {
    display: flex;
    gap: 2.5rem;
}

.nav-links a {
    font-size: 0.95rem;
    color: var(--text-secondary);
    font-weight: 500;
    position: relative;
    transition: var(--transition);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-primary);
    transition: width 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

.mobile-toggle {
    display: none;
    cursor: pointer;
    width: 30px;
    height: 20px;
    position: relative;
    z-index: 1100;
}

.mobile-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--text-primary);
    position: absolute;
    transition: var(--transition);
}

.mobile-toggle span:nth-child(1) { top: 0; }
.mobile-toggle span:nth-child(2) { top: 9px; }
.mobile-toggle span:nth-child(3) { top: 18px; }

.mobile-toggle.active span:nth-child(1) { transform: translateY(9px) rotate(45deg); }
.mobile-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-toggle.active span:nth-child(3) { transform: translateY(-9px) rotate(-45deg); }

/* Sections */
section {
    padding: 100px 5%;
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: 2rem;
    text-align: center;
    font-weight: 700;
    letter-spacing: -1px;
    color: var(--text-primary);
    animation: slideInUp 0.6s ease;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 3rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

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

/* Reveal on Scroll */
[data-reveal] {
    opacity: 0;
    transform: translateY(15px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-reveal].revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--nav-height);
    gap: 5rem;
}

.hero-content {
    flex: 1;
}

.hero-content h1 {
    font-size: clamp(3rem, 10vw, 5.5rem);
    line-height: 1.1;
    margin-bottom: 1.5rem;
    font-weight: 800;
    letter-spacing: -2px;
    color: var(--text-primary);
    animation: slideInUp 0.6s ease;
}

.hero-content h1 span {
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-tagline {
    font-size: 1.2rem;
    max-width: 550px;
    margin-bottom: 2.5rem;
    color: var(--text-secondary);
    line-height: 1.7;
    animation: slideInUp 0.6s ease 0.1s backwards;
}

.cta-group {
    display: flex;
    gap: 1.2rem;
    animation: slideInUp 0.6s ease 0.2s backwards;
}

.btn {
    padding: 14px 32px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    border: none;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.15);
    transition: left 0.35s ease;
    z-index: -1;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--accent-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

.hero-image {
    flex: 1;
    position: relative;
    animation: slideInRight 0.6s ease;
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.hero-image img {
    width: 100%;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.hero-image img:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.12);
}

/* Target Audience Section */
.target-audience-section {
    background: var(--bg-secondary);
    border-radius: 16px;
    padding: 80px 60px;
}

.audience-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.audience-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    padding: 2.5rem;
    border-radius: 12px;
    transition: var(--transition);
    position: relative;
}

.audience-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    border-radius: 12px 12px 0 0;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.35s ease;
}

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

.audience-card:hover {
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.audience-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-weight: 700;
}

.audience-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* SEO/GEO Section */
.seo-geo-section {
    background: var(--bg-secondary);
    border-radius: 16px;
    padding: 80px 60px;
}

.seo-geo-content {
    display: flex;
    align-items: center;
    gap: 5rem;
}

.seo-geo-text {
    flex: 1;
}

.seo-geo-text h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
    letter-spacing: -1px;
    color: var(--text-primary);
}

.impact-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 2rem;
}

.impact-item {
    display: flex;
    gap: 1.5rem;
    padding: 1.5rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    transition: var(--transition);
}

.impact-item:hover {
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-sm);
    transform: translateX(8px);
}

.impact-icon {
    font-size: 1.5rem;
    color: var(--accent-primary);
    font-weight: bold;
    min-width: 30px;
    flex-shrink: 0;
}

.impact-text h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-weight: 700;
}

.impact-text p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Tools Section */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1.5rem;
}

.tool-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 2rem 1.5rem;
    border-radius: 12px;
    text-align: center;
    transition: var(--transition);
    position: relative;
}

.tool-card:hover {
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.tool-logo {
    height: 50px;
    width: auto;
    margin: 0 auto 1rem;
    object-fit: contain;
    transition: transform 0.35s ease;
}

.tool-card:hover .tool-logo {
    transform: scale(1.1);
}

/* Expertise Grid */
.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.expertise-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 2.5rem;
    border-radius: 12px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.expertise-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-tertiary));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.35s ease;
}

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

.expertise-card:hover {
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.expertise-card h3 {
    font-size: 1.1rem;
    margin-bottom: 0.8rem;
    color: var(--text-primary);
    font-weight: 700;
}

.expertise-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

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

.service-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 2.5rem;
    border-radius: 12px;
    transition: var(--transition);
    position: relative;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.35s ease;
}

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

.service-card:hover {
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.service-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-weight: 700;
}

.service-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.service-card ul {
    list-style: none;
    padding: 0;
}

.service-card li {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.7rem;
    padding-left: 1.5rem;
    position: relative;
    transition: var(--transition);
}

.service-card li:before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--accent-primary);
    font-weight: bold;
}

.service-card li:hover {
    padding-left: 2rem;
    color: var(--accent-primary);
}

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

.testimonial-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 2.5rem;
    border-radius: 12px;
    transition: var(--transition);
    position: relative;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: 15px;
    left: 20px;
    font-size: 2.5rem;
    color: var(--accent-primary);
    opacity: 0.15;
}

.testimonial-card:hover {
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.stars {
    font-size: 1rem;
    color: #fbbf24;
    margin-bottom: 1rem;
    letter-spacing: 2px;
}

.testimonial-text {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.8;
    font-style: italic;
}

.testimonial-author h4 {
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: 0.3rem;
    font-weight: 700;
}

.testimonial-author p {
    font-size: 0.85rem;
    color: var(--text-tertiary);
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    border: 1px solid var(--border-color);
    padding: 4rem 2rem;
    border-radius: 16px;
    text-align: center;
    margin: 4rem 0;
    position: relative;
}

.cta-section h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-weight: 700;
    letter-spacing: -1px;
}

.cta-section p {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

/* About Grid */
.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.about-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 2.5rem;
    border-radius: 12px;
    transition: var(--transition);
}

.about-card:hover {
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.about-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    color: var(--accent-primary);
    font-weight: 700;
}

.about-card ul {
    list-style: none;
}

.about-card li {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 0.8rem;
    padding-left: 1.5rem;
    position: relative;
    transition: var(--transition);
}

.about-card li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--accent-primary);
    font-weight: bold;
}

.about-card li:hover {
    padding-left: 2rem;
    color: var(--text-primary);
}

/* FAQ Accordion */
.faq-container {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    margin-bottom: 1rem;
    overflow: hidden;
    transition: var(--transition);
}

.faq-item:hover {
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-sm);
}

.faq-item.active {
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-md);
}

.faq-question {
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-weight: 600;
    font-size: 1.1rem;
    transition: var(--transition);
    color: var(--text-primary);
}

.faq-question:hover {
    color: var(--accent-primary);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 0 2rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.8;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding-bottom: 2rem;
}

.faq-icon {
    font-size: 0.8rem;
    transition: transform 0.35s ease;
    opacity: 0.6;
    color: var(--accent-primary);
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

/* Contact Section */
.whatsapp-btn {
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    color: white;
    padding: 16px 40px;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 700;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border: none;
}

.whatsapp-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Footer */
footer {
    padding: 80px 5% 40px;
    border-top: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

footer h3 {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    font-weight: 700;
}

footer p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.8;
    font-size: 0.95rem;
}

footer a {
    color: var(--accent-primary);
    transition: var(--transition);
    font-weight: 500;
}

footer a:hover {
    color: var(--accent-secondary);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section {
    animation: slideInUp 0.6s ease;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-tertiary);
    font-size: 0.9rem;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    background: var(--accent-primary);
    color: white;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.3rem;
    font-weight: bold;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
    box-shadow: var(--shadow-md);
    border: none;
}

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

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    background: var(--accent-secondary);
}

/* Mobile Navigation */
@media (max-width: 768px) {
    .mobile-toggle {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: var(--nav-height);
        left: 0;
        width: 100%;
        height: calc(100vh - var(--nav-height));
        background: var(--bg-primary);
        flex-direction: column;
        gap: 0;
        padding: 2rem 0;
        transform: translateX(-100%);
        transition: transform 0.35s ease;
        z-index: 999;
        border-right: 1px solid var(--border-color);
    }

    .nav-links.active {
        transform: translateX(0);
    }

    .nav-links a {
        padding: 1rem 2rem;
        border-bottom: 1px solid var(--border-color);
    }

    .nav-links a::after {
        display: none;
    }

    .hero {
        flex-direction: column;
        padding-top: calc(var(--nav-height) + 2rem);
        gap: 2rem;
        min-height: auto;
    }

    .hero-content h1 {
        font-size: clamp(2rem, 8vw, 3rem);
    }

    .hero-image {
        flex: 1;
    }

    section {
        padding: 60px 5%;
    }

    .section-title {
        font-size: clamp(1.8rem, 4vw, 2.5rem);
    }

    .seo-geo-content {
        flex-direction: column;
        gap: 2rem;
    }

    .cta-group {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 44px;
        height: 44px;
        font-size: 1.1rem;
    }

    .services-grid,
    .expertise-grid,
    .testimonials-grid,
    .tools-grid,
    .audience-grid {
        grid-template-columns: 1fr;
    }

    .faq-question {
        font-size: 1rem;
        padding: 1.2rem 1.5rem;
    }

    .faq-answer {
        font-size: 0.9rem;
        padding: 0 1.5rem;
    }

    .faq-item.active .faq-answer {
        padding-bottom: 1.5rem;
    }

    .target-audience-section,
    .seo-geo-section,
    .cta-section {
        padding: 40px 20px;
    }
}

@media (max-width: 480px) {
    nav {
        padding: 0 3%;
    }

    .logo {
        font-size: 1.1rem;
    }

    .hero {
        padding-top: var(--nav-height);
    }

    .hero-content h1 {
        font-size: clamp(1.5rem, 6vw, 2.2rem);
    }

    .hero-tagline {
        font-size: 1rem;
    }

    .cta-group {
        gap: 0.8rem;
    }

    .btn {
        padding: 12px 24px;
        font-size: 0.9rem;
    }

    section {
        padding: 50px 3%;
    }

    .section-title {
        font-size: clamp(1.3rem, 3vw, 1.8rem);
        margin-bottom: 1.5rem;
    }

    .service-card,
    .expertise-card,
    .testimonial-card,
    .audience-card,
    .about-card {
        padding: 1.5rem;
    }

    .service-card h3,
    .expertise-card h3,
    .audience-card h3 {
        font-size: 1.1rem;
    }

    .impact-item {
        padding: 1rem;
        gap: 1rem;
    }

    .faq-question {
        font-size: 0.95rem;
        padding: 1rem 1.2rem;
    }

    .faq-answer {
        font-size: 0.9rem;
        padding: 0 1.2rem;
    }

    .seo-geo-text h2 {
        font-size: 1.8rem;
    }

    .cta-section h2 {
        font-size: 1.8rem;
    }

    .footer-grid {
        gap: 2rem;
    }
}