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

:root {
    --primary-color: #2c7a7b;
    --secondary-color: #e6fffa;
    --accent-color: #d69e2e;
    --text-dark: #2d3748;
    --text-light: #718096;
    --bg-light: #f7fafc;
    --white: #ffffff;
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

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

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

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

.hidden {
    display: none;
}

h1 {
    font-size: 2.8rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--primary-color);
}

h2 {
    font-size: 2.2rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--primary-color);
}

h3 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 10px;
}

p {
    font-size: 1rem;
    color: var(--text-light);
    margin-bottom: 15px;
}

.section-subtitle {
    font-size: 1.2rem;
    max-width: 800px;
    margin: 0 auto 30px auto;
}

.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 30px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
}

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

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

.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    margin-left: 15px;
}

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

header {
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 15px 0;
}

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

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-dark);
}

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

nav {
    display: flex;
    align-items: center;
}

.nav-links {
    display: flex;
    list-style: none;
    align-items: center;
}

.nav-links li {
    margin-left: 30px;
}

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

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

.btn-nav {
    background-color: var(--primary-color);
    color: var(--white) !important;
    padding: 8px 20px;
    border-radius: 20px;
}

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

.burger {
    display: none;
    cursor: pointer;
}

.burger div {
    width: 25px;
    height: 3px;
    background-color: var(--text-dark);
    margin: 5px;
    transition: var(--transition);
}

.hero {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--white) 0%, var(--secondary-color) 100%);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.image-placeholder {
    width: 100%;
    height: 350px;
    background-color: #e2e8f0;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    font-weight: 600;
    border: 2px dashed #cbd5e0;
}

.about {
    padding: 80px 0;
}

.features {
    padding: 80px 0;
    background-color: var(--bg-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.feature-card {
    background-color: var(--white);
    padding: 40px 30px;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.02);
    text-align: center;
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.05);
}

.feature-card .icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.contact {
    padding: 80px 0;
}

.contact-box {
    max-width: 600px;
    margin: 0 auto;
    background-color: var(--white);
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    text-align: center;
    border-top: 5px solid var(--primary-color);
}

.contact-box h2 {
    margin-bottom: 10px;
}

#contact-form {
    margin-top: 30px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group input, .form-group select {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #cbd5e0;
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    outline: none;
    transition: var(--transition);
}

.form-group input:focus, .form-group select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--secondary-color);
}

.btn-submit {
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    width: 100%;
    font-size: 1.1rem;
    padding: 12px;
}

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

.form-message {
    margin-top: 20px;
    padding: 10px;
    border-radius: 8px;
    font-weight: 600;
}

.form-message.success {
    background-color: #c6f6d5;
    color: #22543d;
}

.form-message.error {
    background-color: #fed7d7;
    color: #742a2a;
}

footer {
    background-color: var(--text-dark);
    padding: 30px 0;
}

footer p {
    color: #a0aec0;
    margin-bottom: 0;
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    h1 { font-size: 2.2rem; }
    h2 { font-size: 1.8rem; }
    
    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-cta .btn {
        margin: 10px 5px;
    }
    
    .btn-secondary {
        margin-left: 0;
    }

    .nav-links {
        position: absolute;
        right: 0px;
        height: 40vh;
        top: 8vh;
        background-color: var(--white);
        display: flex;
        flex-direction: column;
        align-items: center;
        width: 100%;
        transform: translateY(-150%);
        transition: transform 0.5s ease-in;
        box-shadow: 0 10px 10px rgba(0, 0, 0, 0.05);
    }

    .nav-links li {
        margin-left: 0;
        margin: 15px 0;
    }

    .burger {
        display: block;
    }

    .nav-active {
        transform: translateY(0%);
    }

    .toggle .line1 { transform: rotate(-45deg) translate(-5px, 6px); }
    .toggle .line2 { opacity: 0; }
    .toggle .line3 { transform: rotate(45deg) translate(-5px, -6px); }
}