/* Reset y Variables */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2d8659;
    --secondary-color: #52b788;
    --dark-green: #1b4332;
    --light-green: #95d5b2;
    --bg-light: #f8f9fa;
    --text-dark: #212529;
    --text-light: #6c757d;
    --white: #ffffff;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.15);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
}

html {
    scroll-behavior: smooth;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header & Navbar */
#header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--white);
    box-shadow: var(--shadow);
    z-index: 1000;
    transition: all 0.3s ease;
}

#header.scrolled {
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.15);
}

#header.scrolled .logo-img {
    height: 60px;
}

#header.hidden {
    transform: translateY(-100%);
}

.navbar {
    padding: 0.2rem 0;
    transition: padding 0.3s ease;
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.logo {
    display: flex;
    align-items: center;
}

.logo-img {
    height: 160px;
    width: auto;
    transition: height 0.3s ease, transform 0.3s ease;
    display: block;
}

.logo-img:hover {
    transform: scale(1.05);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

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

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

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

.menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    margin: 3px 0;
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    margin-top: 165px;
    height: 600px;
    background-image: linear-gradient(rgba(45, 134, 89, 0.7), rgba(45, 134, 89, 0.7)), url('images/hero-arbol.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 1;
    color: var(--white);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 1s ease;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    opacity: 0.95;
    animation: fadeInUp 1.2s ease;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1.4s ease;
}

.btn {
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
}

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

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

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

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

/* Sections */
section {
    padding: 100px 0;
}

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

.section-tag {
    display: inline-block;
    padding: 0.4rem 1.2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 3rem;
    color: var(--dark-green);
    margin-bottom: 1rem;
    font-weight: 800;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-light);
    max-width: 700px;
    margin: 1.5rem auto 0;
}

.title-underline {
    width: 80px;
    height: 5px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    margin: 0 auto;
    border-radius: 10px;
}

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

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

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

.about-content {
    max-width: 1100px;
    margin: 0 auto;
}

.about-grid-two {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    margin-bottom: 4rem;
}

.about-image {
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

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

.about-text p {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.mission-vision-grid {
    display: grid;
    gap: 3rem;
    margin-bottom: 4rem;
}

.mv-card {
    position: relative;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 0;
    align-items: stretch;
    background: var(--white);
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    min-height: 350px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.mv-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
}

.mv-card:nth-child(2) {
    grid-template-columns: 1fr 1.2fr;
}

.mv-image {
    position: relative;
    overflow: hidden;
    height: 100%;
}

.mv-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.5s ease;
}

.mv-card:hover .mv-image img {
    transform: scale(1.1);
}

.mv-content {
    padding: 3rem 2.5rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    position: relative;
}

.mv-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 100%;
    background: linear-gradient(180deg, var(--primary-color), var(--secondary-color));
}

.mv-content h3 {
    color: var(--dark-green);
    font-size: 2rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.mv-content p {
    color: var(--text-dark);
    line-height: 1.9;
    font-size: 1.05rem;
    text-align: justify;
}

.mv-icon {
    font-size: 2.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.certifications {
    text-align: center;
}

.certifications h3 {
    color: var(--dark-green);
    font-size: 2rem;
    margin-bottom: 2rem;
}

.cert-grid {
    display: grid;
    grid-template-columns: 1fr;
    max-width: 700px;
    margin: 0 auto;
}

.cert-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow-lg);
}

.cert-card img {
    width: 100%;
    border-radius: 10px;
    margin-bottom: 1rem;
}

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

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

.service-card {
    background: var(--white);
    padding: 2.5rem 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: all 0.3s ease;
    border-top: 4px solid var(--primary-color);
}

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

.service-icon {
    font-size: 3.5rem;
    margin-bottom: 1rem;
}

.service-card h3 {
    color: var(--dark-green);
    margin-bottom: 1rem;
    font-size: 1.4rem;
}

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

/* Process Section */
.process {
    background: var(--white);
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
}

.process-step {
    position: relative;
    text-align: center;
    padding: 2rem 1.5rem;
    background: var(--bg-light);
    border-radius: 15px;
    transition: all 0.3s ease;
}

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

.step-number {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    box-shadow: 0 4px 10px rgba(45, 134, 89, 0.3);
}

.step-image {
    margin: 1.5rem 0 1rem;
    border-radius: 10px;
    overflow: hidden;
    height: 250px;
}

.step-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.process-step h3 {
    color: var(--dark-green);
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.process-step p {
    color: var(--text-light);
    line-height: 1.6;
}

/* Waste Separation Section */
.waste-separation {
    background: var(--bg-light);
}

.waste-grid {
    max-width: 900px;
    margin: 0 auto;
}

.waste-card {
    background: var(--white);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.waste-image {
    width: 100%;
    height: 350px;
    overflow: hidden;
}

.waste-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.waste-types {
    padding: 2rem;
    display: grid;
    gap: 1.5rem;
}

.waste-type {
    padding: 1.5rem;
    border-radius: 10px;
    border-left: 5px solid;
    transition: transform 0.3s ease;
}

.waste-type:hover {
    transform: translateX(10px);
}

.waste-type.black {
    background: #f8f9fa;
    border-color: #2c3e50;
}

.waste-type.green {
    background: #e8f5e9;
    border-color: #4caf50;
}

.waste-type.white {
    background: #f1f8f5;
    border-color: #52b788;
}

.waste-type h4 {
    color: var(--dark-green);
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.waste-type p {
    color: var(--text-light);
    margin: 0;
}

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

.impact-card {
    position: relative;
    height: 350px;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    cursor: pointer;
}

.impact-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.impact-card:hover img {
    transform: scale(1.1);
}

.impact-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(27, 67, 50, 0.95), transparent);
    padding: 2rem;
    color: var(--white);
    transform: translateY(60%);
    transition: transform 0.3s ease;
}

.impact-card:hover .impact-overlay {
    transform: translateY(0);
}

.impact-overlay h3 {
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.impact-overlay p {
    margin: 0;
    font-size: 0.95rem;
    opacity: 0.9;
}

/* Gallery Section */
.gallery {
    background: var(--bg-light);
}

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

.gallery-item {
    position: relative;
    height: 350px;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    cursor: pointer;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, transparent 0%, rgba(27, 67, 50, 0.95) 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
    display: flex;
    align-items: flex-end;
    padding: 2rem;
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-item:hover img {
    transform: scale(1.15);
}

.gallery-caption {
    color: var(--white);
    transform: translateY(20px);
    transition: transform 0.4s ease 0.1s;
}

.gallery-item:hover .gallery-caption {
    transform: translateY(0);
}

.gallery-caption h4 {
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.gallery-caption p {
    font-size: 1rem;
    opacity: 0.9;
    margin: 0;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--dark-green) 100%);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.cta-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 3rem;
    position: relative;
    z-index: 1;
}

.cta-text {
    flex: 1;
}

.cta-text h2 {
    font-size: 3rem;
    color: var(--white);
    margin-bottom: 1rem;
    font-weight: 800;
}

.cta-text p {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
}

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

.btn-cta-primary {
    background: var(--white);
    color: var(--primary-color);
    padding: 16px 36px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.btn-cta-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

.btn-cta-secondary {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.5);
    padding: 14px 32px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

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

/* Contact Section */
.contact {
    background: var(--bg-light);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 3rem;
    align-items: start;
}

.contact-info {
    display: grid;
    gap: 1.5rem;
}

.info-card {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    text-align: center;
}

.info-icon {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.info-card h3 {
    color: var(--dark-green);
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.info-card p,
.info-card a {
    color: var(--text-light);
    text-decoration: none;
    line-height: 1.6;
}

.info-card a:hover {
    color: var(--primary-color);
}

.contact-map {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    height: 100%;
    min-height: 400px;
}

.contact-map iframe {
    width: 100%;
    height: 100%;
    min-height: 400px;
}

/* Footer */
.footer {
    background: var(--dark-green);
    color: var(--white);
    padding: 3rem 0 1.5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-logo {
    height: 150px;
    width: auto;
    margin-bottom: 1rem;
    filter: brightness(0) invert(1);
}

.footer-section h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.footer-section h4 {
    margin-bottom: 1rem;
    color: var(--light-green);
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 0.5rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
}

/* WhatsApp Float Button */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
    color: white;
    z-index: 999;
    transition: all 0.3s ease;
    text-decoration: none;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.6);
}

/* Responsive Design */
@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
        z-index: 1001;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--white);
        flex-direction: column;
        padding: 120px 20px 20px;
        box-shadow: var(--shadow);
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        transition: opacity 0.3s ease, visibility 0.3s ease;
        justify-content: flex-start;
        gap: 0;
        overflow: hidden;
    }

    .nav-menu.active {
        opacity: 1;
        visibility: visible;
        pointer-events: all;
    }

    .nav-menu li {
        padding: 1rem 0;
        width: 100%;
        text-align: center;
        border-bottom: 1px solid #f0f0f0;
        opacity: 0;
        transform: translateY(-20px);
        transition: opacity 0.3s ease, transform 0.3s ease;
    }

    .nav-menu.active li {
        opacity: 1;
        transform: translateY(0);
    }

    .nav-link {
        font-size: 1.2rem;
        display: block;
        width: 100%;
    }

    .logo-img {
        height: 70px;
    }

    #header.scrolled .logo-img {
        height: 50px;
    }

    .navbar {
        padding: 0.2rem 0;
    }

    .hero {
        height: 500px;
        background-attachment: scroll;
        margin-top: 75px;
    }

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

    .hero-subtitle {
        font-size: 1.2rem;
    }

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

    .cta-content {
        flex-direction: column;
        text-align: center;
    }

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

    .cta-buttons {
        justify-content: center;
    }

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

    .hero-subtitle {
        font-size: 1.2rem;
    }

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

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

    .impact-grid,
    .gallery-grid {
        grid-template-columns: 1fr;
    }

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

    .footer-logo {
        display: block;
        margin: 0 auto 1rem;
    }

    .whatsapp-float {
        width: 50px;
        height: 50px;
        bottom: 20px;
        right: 20px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

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

    .about-grid-two {
        grid-template-columns: 1fr;
    }

    .mv-card {
        grid-template-columns: 1fr;
        min-height: auto;
    }

    .mv-card:nth-child(2) {
        grid-template-columns: 1fr;
    }

    .mv-image {
        height: 250px;
    }

    .mv-content {
        padding: 2rem 1.5rem;
    }

    .mv-content h3 {
        font-size: 1.5rem;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .process-grid {
        grid-template-columns: 1fr;
    }

    .waste-image {
        height: 250px;
    }

    .gallery-item {
        height: 250px;
    }
}