/* ================================================================
   INTEGRA COLOMBIA - LANDING PAGE STYLESHEET
   Modern ISP Management Software
   ================================================================ */

/* ================================================================
   1. CSS VARIABLES
   ================================================================ */
:root {
    /* Primary Colors */
    --navy-blue: #0A1C3E;
    --dark-blue: #1a2940;

    /* Secondary Colors */
    --green: #3CB371;
    --light-green: #90EE90;

    /* Accent Colors */
    --cyan: #00CED1;
    --light-blue: #87CEEB;

    /* Neutral Colors */
    --white: #FFFFFF;
    --light-gray: #F5F5F5;
    --dark-gray: #333333;
    --text-secondary: #666666;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--green) 0%, var(--cyan) 100%);
    --gradient-dark: linear-gradient(135deg, var(--navy-blue) 0%, var(--dark-blue) 100%);

    /* Spacing */
    --section-padding: 60px 0;
    --container-max-width: 1200px;

    /* Typography */
    --font-primary: 'Poppins', sans-serif;

    /* Transitions */
    --transition-smooth: all 0.3s ease;

    /* Shadows */
    --shadow-very-small: 0 2px 10px rgba(0, 0, 0, 0.);
    --shadow-small: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 5px 20px rgba(0, 0, 0, 0.15);
    --shadow-large: 0 10px 40px rgba(0, 0, 0, 0.2);
}

/* ================================================================
   2. RESET & BASE STYLES
   ================================================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-primary);
    color: var(--dark-gray);
    line-height: 1.6;
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

/* ================================================================
   3. UTILITY CLASSES
   ================================================================ */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 50px;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--navy-blue);
    margin-bottom: 15px;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

.lead {
    font-size: 1.2rem;
    font-weight: 500;
    line-height: 1.8;
}

.highlight {
    /* background: linear-gradient(90deg, rgba(60, 179, 113, 0.1) 0%, rgba(0, 206, 209, 0.1) 100%); */
    padding: 15px 20px;
    border-left: 4px solid var(--green);
    border-radius: 5px;
    margin: 20px 0;
    font-weight: 500;
}

/* ================================================================
   4. BUTTONS
   ================================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 30px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    border: none;
    transition: var(--transition-smooth);
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(60, 179, 113, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--green);
    border: 2px solid var(--green);
}

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

.btn-large {
    padding: 16px 40px;
    font-size: 1.1rem;
}

.btn-whatsapp {
    background: #25D366;
    color: var(--white);
}

.btn-whatsapp:hover {
    background: #1EBE57;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(37, 211, 102, 0.4);
}

.btn-phone {
    background: var(--navy-blue);
    color: var(--white);
}

.btn-phone:hover {
    background: var(--dark-blue);
}

.btn-footer-cta {
    background: var(--green);
    color: var(--white);
    padding: 10px 20px;
    font-size: 0.95rem;
}

/* ================================================================
   5. NAVIGATION
   ================================================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: var(--navy-blue);
    box-shadow: var(--shadow-very-small);
    z-index: 1000;
    transition: var(--transition-smooth);
}

.navbar.scrolled {
    box-shadow: var(--shadow-medium);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--white);
}

.logo img {
    width: 50px;
    height: 50px;
    object-fit: contain;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-link {
    font-size: 19px !important;
    font-weight: 500;
    color: var(--white);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

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

.btn-nav-cta {
    background: var(--gradient-primary);
    color: var(--white);
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-toggle span {
    width: 25px;
    height: 3px;
    background: var(--navy-blue);
    border-radius: 2px;
    transition: var(--transition-smooth);
}

/* ================================================================
   6. HERO SECTION
   ================================================================ */
.hero {
    padding: 150px 0 100px;
    position: relative;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-dark);
    z-index: -2;
}

.hero-pattern {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        radial-gradient(circle at 20% 50%, rgba(60, 179, 113, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(0, 206, 209, 0.1) 0%, transparent 50%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-text {
    color: var(--white);
}

.trust-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(60, 179, 113, 0.2);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.9rem;
    margin-bottom: 30px;
    border: 1px solid rgba(60, 179, 113, 0.3);
}

.trust-badge i {
    color: var(--green);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero-subtitle {
    font-size: 1.3rem;
    line-height: 1.8;
    margin-bottom: 40px;
    opacity: 0.95;
}

.hero-cta-group {
    display: flex;
    gap: 20px;
    margin-bottom: 40px;
}

.hero-benefits {
    display: flex;
    gap: 30px;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95rem;
}

.benefit-item i {
    color: var(--cyan);
    font-size: 1.2rem;
}

.hero-image {
    position: relative;
}

.hero-image img {
    width: 100%;
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.3));
}

.floating-card {
    position: absolute;
    background: var(--white);
    padding: 20px;
    border-radius: 15px;
    box-shadow: var(--shadow-large);
    display: flex;
    align-items: center;
    gap: 15px;
}

.floating-card i {
    font-size: 2rem;
    color: var(--green);
}

.floating-card strong {
    display: block;
    font-size: 1.5rem;
    color: var(--navy-blue);
}

.floating-card span {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.card-1 {
    top: 20%;
    left: -50px;
}

.card-2 {
    bottom: 20%;
    right: -50px;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
}

.mouse {
    width: 25px;
    height: 40px;
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 15px;
    position: relative;
    animation: scroll 2s infinite;
}

.mouse::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 2px;
}

@keyframes scroll {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
        transform: translateX(-50%) translateY(10px);
    }
}

/* ================================================================
   7. PROBLEMS SECTION
   ================================================================ */
.problems {
    padding: var(--section-padding);
    background: var(--light-gray);
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 60px;
}

.problem-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    transition: var(--transition-smooth);
    border: 2px solid transparent;
}

.problem-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-large);
    border-color: var(--green);
}

.problem-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, rgba(255, 0, 0, 0.1) 0%, rgba(255, 100, 100, 0.1) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.problem-icon i {
    font-size: 2.5rem;
    color: #FF4444;
}

.problem-card h3 {
    font-size: 1.3rem;
    color: var(--navy-blue);
    margin-bottom: 15px;
}

.problem-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.problems-cta {
    text-align: center;
    padding: 40px;
    background: var(--navy-blue);
    color: var(--white);
    border-radius: 20px;
}

.problems-cta h3 {
    font-size: 2rem;
    margin-bottom: 10px;
}

/* ================================================================
   8. SOLUTION OVERVIEW
   ================================================================ */
.solution-overview {
    padding: var(--section-padding);
}

.solution-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.solution-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.solution-visual img {
    width: 80%;
    position: relative;
    z-index: 2;
}

.pulse-ring {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 6px solid var(--green);
    border-radius: 50%;
    animation: pulse 6s infinite;
    opacity: 0.5;
}

.hero-video {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-video video {
    width: 135%;
    max-width: 750px;
    border-radius: 20px;
    /* box-shadow: 0 0 35px rgba(0, 0, 0, 0.9); */
    object-fit: cover;

    opacity: 1;
    transform: scale(0.9);
    /* inicia un poco m谩s peque帽o */
    animation: fadeInGrow 1.8s ease-out forwards;
}

@keyframes pulse {
    0% {
        transform: scale(0.8);
        opacity: 0.5;
    }

    50% {
        transform: scale(1);
        opacity: 0.3;
    }

    100% {
        transform: scale(1.2);
        opacity: 0;
    }
}

.solution-text h2 {
    font-size: 2.5rem;
    color: var(--navy-blue);
    margin-bottom: 20px;
}

.solution-benefits {
    margin: 30px 0;
}

.solution-benefits li {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    margin-bottom: 15px;
    font-size: 1.05rem;
}

.solution-benefits i {
    color: var(--green);
    font-size: 1.3rem;
    margin-top: 3px;
}

/* ================================================================
   9. PILLARS SECTION
   ================================================================ */
.pillars {
    padding: var(--section-padding);
    background: var(--light-gray);
}

.pillars-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.pillar-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.pillar-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

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

.pillar-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto 25px;
    background: var(--gradient-primary);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 30px rgba(60, 179, 113, 0.3);
}

.pillar-icon i {
    font-size: 3rem;
    color: var(--white);
}

.pillar-card h3 {
    font-size: 1.4rem;
    color: var(--navy-blue);
    margin-bottom: 15px;
}

.pillar-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ================================================================
   10. FEATURES SHOWCASE
   ================================================================ */
.features-showcase {
    padding: var(--section-padding);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.feature-card {
    background: var(--light-gray);
    padding: 35px 25px;
    border-radius: 15px;
    transition: var(--transition-smooth);
    border: 2px solid transparent;
}

.feature-card:hover {
    background: var(--white);
    border-color: var(--cyan);
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.feature-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-primary);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.feature-icon i {
    font-size: 2rem;
    color: var(--white);
}

.feature-card h3 {
    font-size: 1.2rem;
    color: var(--navy-blue);
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ================================================================
   11. AI CHATBOT SECTION
   ================================================================ */
.ai-chatbot {
    padding: var(--section-padding);
    background: linear-gradient(135deg, var(--navy-blue) 0%, var(--dark-blue) 100%);
    color: var(--white);
}

.chatbot-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.chatbot-image img {
    border-radius: 20px;
    box-shadow: var(--shadow-large);
}

.tag {
    display: inline-block;
    background: rgba(60, 179, 113, 0.2);
    color: var(--green);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 20px;
    border: 1px solid rgba(60, 179, 113, 0.3);
}

.chatbot-text h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.benefits-list {
    margin: 30px 0;
}

.benefits-list li {
    display: flex;
    gap: 20px;
    margin-bottom: 25px;
    align-items: flex-start;
}

.benefits-list i {
    font-size: 1.5rem;
    color: var(--green);
    margin-top: 5px;
}

.benefits-list strong {
    display: block;
    font-size: 1.1rem;
    margin-bottom: 5px;
}

.benefits-list p {
    font-size: 0.95rem;
    opacity: 0.9;
}

.chatbot-cta {
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

/* ================================================================
   12. ANALYTICS SECTION
   ================================================================ */
.analytics {
    padding: var(--section-padding);
    background: var(--light-gray);
}

.analytics-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.analytics-text h2 {
    font-size: 2.5rem;
    color: var(--navy-blue);
    margin-bottom: 20px;
}

.analytics-features {
    margin: 40px 0;
}

.analytics-feature {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
}

.analytics-feature i {
    font-size: 2rem;
    color: var(--green);
    margin-top: 5px;
}

.analytics-feature h4 {
    font-size: 1.2rem;
    color: var(--navy-blue);
    margin-bottom: 8px;
}

.analytics-feature p {
    color: var(--text-secondary);
}

.analytics-visual img {
    border-radius: 20px;
    box-shadow: var(--shadow-large);
}

/* ================================================================
   13. INTEGRATIONS SECTION
   ================================================================ */
.integrations {
    padding: var(--section-padding);
}

.integration-category {
    margin-bottom: 60px;
}

.integration-category h3 {
    font-size: 1.5rem;
    color: var(--navy-blue);
    margin-bottom: 30px;
    text-align: center;
}

.integration-category h3 i {
    color: var(--green);
    margin-right: 10px;
}

.integration-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 40px;
    flex-wrap: wrap;
}

.integration-logo {
    width: 150px;
    height: 80px;
    background: var(--white);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    box-shadow: var(--shadow-small);
    transition: var(--transition-smooth);
}

.integration-logo:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.integration-logo img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    filter: grayscale(100%);
    transition: var(--transition-smooth);
}

.integration-logo:hover img {
    filter: grayscale(0%);
}

/* ================================================================
   14. SOCIAL PROOF SECTION
   ================================================================ */
.social-proof {
    padding: var(--section-padding);
    background: var(--gradient-dark);
    color: var(--white);
}

.proof-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.proof-visual img {
    filter: brightness(0.9) drop-shadow(0 20px 40px rgba(0, 0, 0, 0.3));
}

.colombia-flag {
    font-size: 3rem;
    margin-bottom: 20px;
}

.proof-text h2 {
    font-size: 2.5rem;
    margin-bottom: 25px;
}

.proof-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 20px;
    opacity: 0.95;
}

/* ================================================================
   15. MISSION SECTION
   ================================================================ */
.mission {
    padding: var(--section-padding);
    background: var(--light-gray);
}

.mission-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.mission-visual img {
    width: 90%;
    margin: 0 auto;
}

.mission-text h2 {
    font-size: 2.3rem;
    color: var(--navy-blue);
    margin-bottom: 25px;
    line-height: 1.4;
}

.mission-values {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin: 40px 0;
}

.value-item {
    background: var(--white);
    padding: 25px;
    border-radius: 15px;
    text-align: center;
    transition: var(--transition-smooth);
}

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

.value-item i {
    font-size: 2.5rem;
    color: var(--green);
    margin-bottom: 15px;
}

.value-item h4 {
    font-size: 1.2rem;
    color: var(--navy-blue);
    margin-bottom: 10px;
}

.value-item p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.mission-cta {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--green);
    text-align: center;
    margin-top: 40px;
}

/* ================================================================
   16. FINAL CTA SECTION
   ================================================================ */
.cta-final {
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.cta-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-dark);
    z-index: -1;
}

.cta-content {
    text-align: center;
    color: var(--white);
}

.cta-content h2 {
    font-size: 3rem;
    margin-bottom: 20px;
}

.cta-content .lead {
    font-size: 1.2rem;
    margin-bottom: 40px;
    opacity: 0.95;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 40px;
}

.cta-info {
    display: flex;
    justify-content: center;
    gap: 50px;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.info-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95rem;
}

.info-item i {
    color: var(--green);
    font-size: 1.2rem;
}

/* ================================================================
   17. FOOTER
   ================================================================ */
.footer {
    background: var(--navy-blue);
    color: var(--white);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    margin-bottom: 50px;
}

.footer-col h4 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: var(--green);
}

.footer-col ul li {
    margin-bottom: 12px;
}

.footer-col ul li a {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.95rem;
}

.footer-col ul li a:hover {
    color: var(--green);
    padding-left: 5px;
}

.footer-logo {
    width: 400px;
    display: flex;
    align-items: center;
    /* gap: 10px; */
    margin-bottom: 20px;
}

.footer-logo img {
    width: 40px;
}

.footer-logo span {
    font-size: 1.3rem;
    font-weight: 800;
}

.footer-tagline {
    color: var(--green);
    font-style: italic;
}

.contact-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 15px;
}

.contact-list i {
    color: var(--green);
    margin-top: 3px;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
}

.social-link {
    width: 45px;
    height: 45px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: var(--transition-smooth);
}

.social-link:hover {
    background: var(--green);
    transform: translateY(-3px);
}

.footer-cta-text {
    margin-bottom: 15px;
    font-weight: 600;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
}

.footer-legal {
    display: flex;
    gap: 15px;
}

.footer-legal a:hover {
    color: var(--green);
}

/* ================================================================
   18. FLOATING ELEMENTS
   ================================================================ */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: #25D366;
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.5);
    z-index: 999;
    transition: var(--transition-smooth);
    animation: float 3s ease-in-out infinite;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(37, 211, 102, 0.7);
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

.back-to-top {
    position: fixed;
    bottom: 100px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--navy-blue);
    color: var(--white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    box-shadow: var(--shadow-medium);
    z-index: 999;
    transition: var(--transition-smooth);
}

.back-to-top:hover {
    background: var(--green);
    transform: translateY(-5px);
}

.back-to-top.show {
    display: flex;
}

/* ================================================================
   19. RESPONSIVE DESIGN
   ================================================================ */

/* Tablet (max-width: 992px) */
@media (max-width: 992px) {
    .section-header h2 {
        font-size: 2rem;
    }

    .hero-content,
    .solution-content,
    .chatbot-content,
    .analytics-content,
    .proof-content,
    .mission-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .pillars-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .problems-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero-title {
        font-size: 2.5rem;
    }

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

    .card-1,
    .card-2 {
        display: none;
    }

    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Mobile (max-width: 768px) */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--white);
        flex-direction: column;
        padding: 40px 20px;
        box-shadow: var(--shadow-large);
        transition: left 0.3s ease;
    }

    .nav-menu.active {
        left: 0;
    }

    .mobile-toggle {
        display: flex;
    }

    .hero {
        padding: 120px 0 60px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .hero-benefits {
        flex-direction: column;
        gap: 15px;
    }

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

    .pillars-grid,
    .features-grid,
    .problems-grid {
        grid-template-columns: 1fr;
    }

    .mission-values {
        grid-template-columns: 1fr;
    }

    .cta-content h2 {
        font-size: 2rem;
    }

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

    .cta-info {
        flex-direction: column;
        gap: 20px;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }

    .whatsapp-float {
        width: 55px;
        height: 55px;
        bottom: 20px;
        right: 20px;
    }

    .back-to-top {
        bottom: 85px;
        right: 20px;
    }
}

/* Small Mobile (max-width: 480px) */
@media (max-width: 480px) {
    .hero-title {
        font-size: 1.75rem;
    }

    .section-header h2 {
        font-size: 1.5rem;
    }

    .btn-large {
        padding: 14px 25px;
        font-size: 1rem;
    }

    .integration-logos {
        gap: 20px;
    }

    .integration-logo {
        width: 120px;
        height: 70px;
    }
}