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

:root {
    --primary-color: #FF6B00;
    --secondary-color: #FFA500;
    --text-dark: #2C3E50;
    --text-light: #7F8C8D;
    --bg-light: #F8F9FA;
    --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: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
}

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

/* Header */
header {
    background: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

.btn-app {
    background: var(--primary-color);
    color: var(--white);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-app:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    padding: 80px 20px;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    animation: fadeInUp 0.8s;
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.95;
    animation: fadeInUp 0.8s 0.2s backwards;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3rem;
    animation: fadeInUp 0.8s 0.4s backwards;
}

.btn {
    padding: 1rem 2rem;
    border: none;
    border-radius: 30px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
}

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

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

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

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

.app-badges {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s 0.6s backwards;
}

.app-badges .badge img {
    height: 50px;
    transition: transform 0.3s;
}

.app-badges .badge:hover img {
    transform: scale(1.05);
}

/* Features Section */
.features {
    padding: 80px 20px;
    background: var(--bg-light);
}

.features h2,
.categories h2,
.cta h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--text-dark);
}

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

.feature-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: all 0.3s;
    cursor: pointer;
    position: relative;
}

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

.feature-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

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

.badge-app {
    display: inline-block;
    background: var(--primary-color);
    color: var(--white);
    padding: 0.3rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

/* Categories Section */
.categories {
    padding: 80px 20px;
    background: var(--white);
}

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1.5rem;
}

.category-card {
    background: var(--bg-light);
    padding: 2rem 1rem;
    border-radius: 15px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
}

.category-card:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: scale(1.05);
}

.category-icon {
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

.category-card h3 {
    font-size: 1.1rem;
}

/* CTA Section */
.cta {
    padding: 80px 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    text-align: center;
}

.cta p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

/* Footer */
footer {
    background: var(--text-dark);
    color: var(--white);
    padding: 40px 20px 20px;
}

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

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.footer-section p {
    margin-bottom: 0.5rem;
    opacity: 0.9;
}

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

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    animation: fadeIn 0.3s;
}

.modal-content {
    background-color: var(--white);
    margin: 5% auto;
    padding: 2rem;
    border-radius: 20px;
    max-width: 500px;
    position: relative;
    animation: slideIn 0.3s;
}

.close {
    color: var(--text-light);
    float: right;
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    line-height: 1;
}

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

.modal h2 {
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.modal p {
    color: var(--text-light);
    margin-bottom: 1rem;
}

.modal-features {
    list-style: none;
    margin: 1.5rem 0;
    padding: 0;
}

.modal-features li {
    padding: 0.5rem 0;
    color: var(--text-dark);
}

.modal-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.modal-buttons .btn {
    flex: 1;
    min-width: 150px;
}

.modal-note {
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-light);
    margin-top: 1rem;
}

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

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

@keyframes slideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }

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

    .features h2,
    .categories h2,
    .cta h2 {
        font-size: 2rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 300px;
    }

    .modal-content {
        margin: 20% 20px;
        padding: 1.5rem;
    }

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

    .modal-buttons .btn {
        width: 100%;
    }
}

/* Contact Form Section */
.contact-section {
    padding: 80px 20px;
    background: var(--bg-light);
}

.contact-section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.contact-form {
    max-width: 800px;
    margin: 0 auto;
    background: var(--white);
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: var(--shadow);
}

.form-row {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.form-group {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 1px solid #ccc;
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 107, 0, 0.2);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.contact-form .btn {
    width: 100%;
    max-width: 300px;
    margin: 1rem auto 0;
    display: block;
    background: var(--primary-color);
    color: var(--white);
    position: relative;
}

.contact-form .btn:hover {
    background: var(--secondary-color);
}

.btn-loader {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    font-size: 1.2rem;
}

.form-message {
    margin-top: 1.5rem;
    padding: 1rem;
    border-radius: 8px;
    text-align: center;
    display: none;
}

.form-message.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
    display: block;
}

.form-message.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
    display: block;
}

@media (max-width: 768px) {
    .contact-section h2 {
        font-size: 2rem;
    }

    .form-row {
        flex-direction: column;
        gap: 1.5rem;
    }

    .contact-form {
        padding: 2rem;
    }
}