/* Reset e Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #4A90E2;
    --secondary-color: #2ECC71;
    --dark-color: #2C3E50;
    --light-color: #ECF0F1;
    --white: #ffffff;
    --gray: #7F8C8D;
    --shadow: 0 2px 10px rgba(0,0,0,0.1);
}

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

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

/* Header Sticky */
#header {
    background: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 15px 0;
}

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

#header .logo h1 {
    font-size: 24px;
    color: var(--dark-color);
}

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

#header nav ul {
    display: flex;
    list-style: none;
    gap: 30px;
}

#header nav a {
    text-decoration: none;
    color: var(--dark-color);
    font-weight: 500;
    transition: color 0.3s;
}

#header nav a:hover {
    color: var(--primary-color);
}

.btn-header {
    background: var(--primary-color);
    color: var(--white);
    padding: 10px 25px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    transition: background 0.3s;
}

.btn-header:hover {
    background: #3A7BC8;
}

/* Hero Section */
.hero {
    padding: 100px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--white);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.hero-content h1 {
    font-size: 42px;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-content h2 {
    font-size: 20px;
    font-weight: 400;
    margin-bottom: 30px;
    opacity: 0.9;
}

.hero-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

/* Buttons */
.btn-primary, .btn-secondary {
    display: inline-block;
    padding: 15px 40px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
    font-size: 16px;
}

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

.btn-primary:hover {
    background: #27AE60;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(46, 204, 113, 0.4);
}

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

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

/* Section Titles */
.section-title {
    font-size: 36px;
    text-align: center;
    margin-bottom: 50px;
    color: var(--dark-color);
}

/* Why Us Section */
.why-us {
    padding: 80px 0;
    background: var(--light-color);
}

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

.card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: transform 0.3s;
}

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

.card .icon {
    font-size: 60px;
    margin-bottom: 20px;
}

.card h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.card p {
    color: var(--gray);
    line-height: 1.8;
}

/* How It Works */
.how-it-works {
    padding: 80px 0;
}

.steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.step {
    text-align: center;
    position: relative;
}

.step-number {
    width: 80px;
    height: 80px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    font-weight: bold;
    margin: 0 auto 25px;
}

.step h3 {
    font-size: 24px;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.step p {
    color: var(--gray);
    line-height: 1.8;
}

/* Operators Area */
.operators-area {
    padding: 80px 0;
    background: var(--dark-color);
    color: var(--white);
}

.operators-area .section-title {
    color: var(--white);
}

.operators-content {
    max-width: 900px;
    margin: 0 auto;
}

.operators-benefits {
    display: grid;
    gap: 30px;
    margin-bottom: 40px;
}

.benefit h3 {
    font-size: 24px;
    margin-bottom: 10px;
}

.benefit p {
    color: var(--light-color);
    line-height: 1.8;
}

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

/* Contact Form */
.contact-form {
    padding: 80px 0;
    background: var(--light-color);
}

.contact-form .subtitle {
    text-align: center;
    color: var(--gray);
    margin-bottom: 40px;
    font-size: 18px;
}

form {
    max-width: 800px;
    margin: 0 auto;
    background: var(--white);
    padding: 40px;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--dark-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.checkbox-group label {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 400;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
}

.checkbox-group a {
    color: var(--primary-color);
}

form button[type="submit"] {
    width: 100%;
    margin-top: 10px;
}

#form-message {
    margin-top: 20px;
    padding: 15px;
    border-radius: 5px;
    text-align: center;
    font-weight: 600;
    display: none;
}

#form-message.success {
    background: #d4edda;
    color: #155724;
    display: block;
}

#form-message.error {
    background: #f8d7da;
    color: #721c24;
    display: block;
}

/* Footer */
footer {
    background: var(--dark-color);
    color: var(--white);
    padding: 50px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-bottom: 30px;
}

.footer-col h3, .footer-col h4 {
    margin-bottom: 20px;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col a {
    color: var(--light-color);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-col a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: var(--light-color);
}

/* Responsive */
@media (max-width: 768px) {
    #header nav {
        display: none;
    }

    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-content h1 {
        font-size: 32px;
    }

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

    .form-row {
        grid-template-columns: 1fr;
    }
}

/* Smooth Scroll */
html {
    scroll-behavior: smooth;
}