:root {
    --primary-blue: #0b3b5c; /* Deep Blue from Paell text */
    --primary-green: #4caf50; /* Vibrant Green from Paell leaf */
    --secondary-green: #81c784; 
    --dark-bg: #121f28; /* Darker blue background */
    --light-bg: #f8fafc;
    --white: #ffffff;
    --gray-bg: #e2e8f0;
    --text-dark: #1e293b;
    --text-light: #94a3b8;
    --text-gray: #475569;
    --border-color: #cbd5e1;
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 20px 40px -15px rgba(0, 0, 0, 0.2);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    background-color: var(--light-bg);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

html {
    scroll-behavior: smooth;
}

/* Utilities */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.text-primary { color: var(--primary-green); }
.text-secondary { color: var(--secondary-green); }
.text-white { color: var(--white); }
.text-center { text-align: center; }
.bg-light { background-color: var(--light-bg); }
.bg-dark { background-color: var(--dark-bg); }
.bg-gray { background-color: var(--gray-bg); }

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 2px 15px rgba(0,0,0,0.05);
    transition: var(--transition);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.5rem 2rem;
    transition: var(--transition);
}

.mobile-menu-btn {
    display: none;
    cursor: pointer;
    color: var(--primary-blue);
    z-index: 1001;
}

.mobile-menu-btn .menu-icon,
.mobile-menu-btn .close-icon {
    width: 32px;
    height: 32px;
    transition: var(--transition);
}

.nav-logo {
    height: 90px;
    width: auto;
    object-fit: contain;
    transition: var(--transition);
}

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

.nav-links a {
    text-decoration: none;
    color: var(--primary-blue);
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-green);
    transition: var(--transition);
}

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

.nav-links a:hover {
    color: var(--primary-green);
}

/* Hero Section */
.hero {
    height: 100vh;
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--primary-blue) 100%);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
    padding: 0 2rem;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('https://images.unsplash.com/photo-1625246333195-78d9c38ad449?q=80&w=2070&auto=format&fit=crop') center/cover no-repeat;
    opacity: 0.15;
    mix-blend-mode: overlay;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero-logo {
    width: 250px;
    margin-bottom: 2rem;
    filter: drop-shadow(0px 10px 15px rgba(0,0,0,0.5));
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-15px); }
    100% { transform: translateY(0px); }
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    line-height: 1.2;
    background: linear-gradient(to right, #fff, var(--secondary-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.25rem;
    color: var(--border-color);
    margin-bottom: 2.5rem;
    font-weight: 300;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2.5rem;
    background-color: var(--primary-green);
    color: var(--white);
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(76, 175, 80, 0.4);
}

.cta-button:hover {
    background-color: #388e3c;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(76, 175, 80, 0.6);
}

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

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

.section-header h2 {
    font-size: 2.5rem;
    color: var(--primary-blue);
    font-weight: 800;
    margin-bottom: 0.5rem;
    position: relative;
    display: inline-block;
}

.bg-dark .section-header h2 {
    color: var(--white);
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 4px;
    background-color: var(--primary-green);
    border-radius: 2px;
}

.section-header.center {
    text-align: center;
}

.section-header.center h2::after {
    left: 50%;
    transform: translateX(-50%);
}

.subtitle {
    color: var(--text-gray);
    font-size: 1.1rem;
    margin-top: 1rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 600;
}

/* Grids */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

/* Cards */
.card {
    background: var(--white);
    padding: 3rem 2rem;
    border-radius: 20px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid rgba(0,0,0,0.05);
}

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

.info-card h3 {
    font-size: 1.5rem;
    color: var(--primary-blue);
    margin-bottom: 1.5rem;
    margin-top: 1rem;
}

.info-card p {
    margin-bottom: 1rem;
    color: var(--text-gray);
}

.info-card .icon {
    width: 48px;
    height: 48px;
}

/* Feature List */
.content-block h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

.content-block p {
    color: var(--border-color);
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

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

.feature-list li {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 1.1rem;
    color: var(--white);
    background: rgba(255,255,255,0.05);
    padding: 1rem;
    border-radius: 10px;
    transition: var(--transition);
}

.feature-list li:hover {
    background: rgba(255,255,255,0.1);
    transform: translateX(10px);
}

.feature-list li i {
    color: var(--primary-green);
}

/* Feature Cards (Foco) */
.feature-card {
    background: var(--white);
    padding: 2.5rem 2rem;
    border-radius: 16px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 0%;
    background: var(--primary-green);
    transition: var(--transition);
    z-index: -1;
    opacity: 0.1;
}

.feature-card:hover::before {
    height: 100%;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-green);
}

.icon-wrapper {
    width: 80px;
    height: 80px;
    background: var(--light-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: var(--primary-blue);
    transition: var(--transition);
}

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

.feature-card h4 {
    font-size: 1.25rem;
    color: var(--primary-blue);
    font-weight: 600;
}

/* Structural Card */
.structural-card {
    background: var(--white);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--gray-bg);
}

.icon-large {
    width: 40px;
    height: 40px;
    color: var(--primary-green);
}

.structural-card h3 {
    font-size: 1.5rem;
    color: var(--primary-blue);
}

.structural-card p {
    color: var(--text-gray);
    margin-bottom: 1rem;
}

/* Footer */
.footer {
    background-color: #051b2a;
    color: var(--border-color);
    padding: 4rem 0 2rem;
}

.footer-logo {
    height: 50px;
    opacity: 0.8;
    margin-bottom: 2rem;
}

/* Animations */
.fade-in-up {
    animation: fadeInUp 1s ease-out forwards;
}

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

.reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s ease-out;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 992px) {
    .grid-2, .grid-3 {
        grid-template-columns: 1fr;
    }
    .hero h1 {
        font-size: 2.8rem;
    }
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 400px;
        height: 100vh;
        background-color: var(--white);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 2.5rem;
        transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: -10px 0 30px rgba(0,0,0,0.1);
        z-index: 1000;
        padding: 2rem;
    }

    .nav-links.active {
        right: 0;
    }

    .nav-links a {
        font-size: 1.25rem;
    }

    .nav-logo {
        height: 60px !important;
    }

    .hero h1 {
        font-size: 2.2rem;
    }
    .section {
        padding: 4rem 0;
    }
}

/* Nav Contact Button */
.nav-contact-btn {
    background-color: var(--primary-green);
    color: var(--white);
    border: none;
    padding: 0.6rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.95rem;
}

.nav-contact-btn:hover {
    background-color: #388e3c;
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(76, 175, 80, 0.3);
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(5px);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
}

.modal-content {
    background-color: var(--white);
    padding: 2.5rem;
    border-radius: 20px;
    width: 90%;
    max-width: 450px;
    position: relative;
    transform: translateY(-20px);
    transition: transform 0.3s ease;
    box-shadow: 0 20px 50px rgba(0,0,0,0.2);
}

.modal.show .modal-content {
    transform: translateY(0);
}

.close-btn {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    color: var(--text-light);
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
}

.close-btn:hover {
    color: var(--text-dark);
}

.modal-header {
    text-align: center;
    margin-bottom: 2rem;
}

.modal-header h2 {
    color: var(--primary-blue);
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.modal-header p {
    color: var(--text-gray);
}

/* WhatsApp Button */
.whatsapp-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    background-color: #25D366;
    color: white;
    padding: 1rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: var(--transition);
    margin-bottom: 1.5rem;
}

.whatsapp-btn:hover {
    background-color: #1ebe57;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(37, 211, 102, 0.3);
}

.wa-icon {
    width: 24px;
    height: 24px;
}

/* Form Styles */
.modal-divider {
    text-align: center;
    margin: 1.5rem 0;
    position: relative;
}

.modal-divider::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 0;
    width: 100%;
    height: 1px;
    background-color: var(--gray-bg);
    z-index: 1;
}

.modal-divider span {
    background-color: var(--white);
    padding: 0 1rem;
    color: var(--text-light);
    font-size: 0.9rem;
    position: relative;
    z-index: 2;
}

.form-group {
    margin-bottom: 1rem;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    transition: var(--transition);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-green);
    box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.1);
}

.submit-btn {
    width: 100%;
    background-color: var(--primary-blue);
    color: var(--white);
    border: none;
    padding: 1rem;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.submit-btn:hover {
    background-color: #082d47;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(11, 59, 92, 0.2);
}