:root {
    --primary-color: #1ba887;
    --primary-dark: #128266;
    --secondary-color: #fb3640;
    --secondary-dark: #d82b34;
    --dark-color: #0f172a;
    --light-color: #f8fafc;
    --gray-color: #64748b;
    --gray-light: #e2e8f0;
    --font-sans: 'Inter', sans-serif;
    --font-heading: 'Outfit', sans-serif;
    --transition: all 0.3s ease;
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

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

body {
    font-family: var(--font-sans);
    color: var(--dark-color);
    line-height: 1.6;
    background-color: #fff;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

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

.section {
    padding: 100px 0;
}

.bg-light {
    background-color: var(--light-color);
}

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

.highlight-text {
    color: var(--primary-color);
}

.text-gradient {
    background: linear-gradient(135deg, var(--primary-color), #21d4ab);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-size: 16px;
}

.btn-lg {
    padding: 16px 36px;
    font-size: 18px;
}

.btn-primary {
    background-color: var(--secondary-color);
    color: #fff;
    box-shadow: 0 4px 14px rgba(251, 54, 64, 0.4);
}

.btn-primary:hover {
    background-color: var(--secondary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(251, 54, 64, 0.5);
    color: #fff;
}

.btn-outline {
    background-color: transparent;
    color: #fff;
    border: 2px solid #fff;
}

.btn-outline:hover {
    background-color: #fff;
    color: var(--dark-color);
}

.btn-block {
    display: block;
    width: 100%;
}

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

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    font-family: var(--font-heading);
    font-size: 28px;
    font-weight: 800;
    letter-spacing: -1px;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    font-weight: 600;
    color: var(--dark-color);
}

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

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--dark-color);
    cursor: pointer;
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    background-image: url('https://images.unsplash.com/photo-1544197150-b99a580bb7a8?q=80&w=2070&auto=format&fit=crop');
    background-size: cover;
    background-position: center;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.9) 0%, rgba(15, 23, 42, 0.7) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    color: #fff;
    max-width: 800px;
}

.hero-content h1 {
    font-size: 4rem;
    margin-bottom: 20px;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 40px;
    color: #cbd5e1;
}

.hero-buttons {
    display: flex;
    gap: 20px;
}

/* Section Headers */
.section-header {
    margin-bottom: 60px;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--gray-color);
    max-width: 600px;
    margin: 0 auto;
}

/* Tariffs Filter */
.tariffs-filter {
    margin-top: 30px;
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
}

.filter-btn {
    background-color: transparent;
    border: 2px solid var(--gray-light);
    padding: 8px 20px;
    border-radius: 30px;
    font-family: var(--font-sans);
    font-weight: 600;
    color: var(--gray-color);
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover, .filter-btn.active {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: #fff;
}

/* Tariffs Grid */
.tariffs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    padding: 20px 0;
}

/* Tariff Cards */
.tariff-card {
    background: #fff;
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    border: 1px solid var(--gray-light);
}

.tariff-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.tariff-card.highlight {
    background: linear-gradient(145deg, #fff, #f0fdfa);
    border: 2px solid var(--primary-color);
    transform: scale(1.05);
}

.tariff-card.highlight:hover {
    transform: scale(1.05) translateY(-10px);
}

.tariff-badge {
    position: absolute;
    top: 20px;
    right: -35px;
    background: var(--secondary-color);
    color: #fff;
    padding: 5px 40px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    transform: rotate(45deg);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.tariff-category {
    font-size: 14px;
    color: var(--primary-color);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 10px;
    display: block;
}

.tariff-title {
    font-size: 24px;
    margin-bottom: 20px;
    color: var(--dark-color);
}

.tariff-price {
    font-size: 36px;
    font-family: var(--font-heading);
    font-weight: 800;
    color: var(--dark-color);
    margin-bottom: 30px;
}

.tariff-price span {
    font-size: 16px;
    color: var(--gray-color);
    font-weight: 400;
}

.tariff-features {
    text-align: left;
    margin-bottom: 30px;
}

.tariff-features li {
    margin-bottom: 15px;
    color: var(--gray-color);
    display: flex;
    align-items: center;
}

.tariff-features li i {
    color: var(--primary-color);
    margin-right: 10px;
}

/* Features Section */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.feature-card {
    text-align: center;
    padding: 30px;
    border-radius: 20px;
    background: var(--light-color);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    background: #fff;
    box-shadow: var(--shadow-md);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--primary-color), #21d4ab);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: #fff;
    box-shadow: 0 10px 20px rgba(27, 168, 135, 0.3);
}

.feature-card h3 {
    margin-bottom: 15px;
    font-size: 20px;
}

.feature-card p {
    color: var(--gray-color);
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--dark-color), #1e293b);
    color: #fff;
    position: relative;
    overflow: hidden;
}

.cta-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 50px;
}

.cta-content {
    flex: 1;
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.cta-content p {
    font-size: 1.1rem;
    color: #cbd5e1;
}

.cta-form-container {
    flex: 1;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    padding: 40px;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

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

.form-group input {
    width: 100%;
    padding: 15px 20px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.05);
    color: #fff;
    font-family: var(--font-sans);
    font-size: 16px;
    transition: var(--transition);
}

.form-group input::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    background: rgba(255, 255, 255, 0.1);
}

.form-terms {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.5);
    text-align: center;
    margin-top: 15px;
}

/* Footer */
.footer {
    background: #0b1120;
    color: #94a3b8;
    padding-top: 80px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 50px;
    margin-bottom: 60px;
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 20px;
}

.footer-about p {
    margin-bottom: 20px;
    max-width: 300px;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

.footer-links h4, .footer-contact h4 {
    color: #fff;
    font-size: 18px;
    margin-bottom: 20px;
}

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

.footer-links ul li a:hover {
    color: var(--primary-color);
}

.footer-contact p {
    margin-bottom: 15px;
    display: flex;
    align-items: center;
}

.footer-contact p i {
    margin-right: 10px;
    color: var(--primary-color);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 20px 0;
    text-align: center;
    font-size: 14px;
}

.footer-bottom a {
    margin: 0 10px;
}

.footer-bottom a:hover {
    color: #fff;
}

/* Animations */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards;
}

.delay-1 {
    animation-delay: 0.2s;
}

.delay-2 {
    animation-delay: 0.4s;
}

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

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: #fff;
    margin: 5% auto;
    padding: 40px;
    border-radius: 20px;
    max-width: 600px;
    width: 90%;
    position: relative;
    box-shadow: var(--shadow-lg);
    animation: fadeInUp 0.4s ease;
}

.close-modal {
    color: var(--gray-color);
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
}

.close-modal:hover,
.close-modal:focus {
    color: var(--secondary-color);
    text-decoration: none;
}

.modal-content h2 {
    font-size: 24px;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.modal-subtitle {
    margin-bottom: 25px;
    color: var(--gray-color);
}

.modal-subtitle strong {
    color: var(--primary-color);
}

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

.modal-form input[type="text"],
.modal-form input[type="email"],
.modal-form input[type="tel"] {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--gray-light);
    border-radius: 8px;
    font-family: var(--font-sans);
    background-color: var(--light-color);
    color: var(--dark-color);
}

.modal-form input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(27, 168, 135, 0.2);
}

.file-group {
    background: var(--light-color);
    padding: 15px;
    border-radius: 8px;
    border: 1px dashed var(--gray-color);
}

.file-group input[type="file"] {
    width: 100%;
    padding: 10px 0;
    cursor: pointer;
}

.modal-form .form-terms {
    color: var(--gray-color);
}

/* Responsive */
@media (max-width: 992px) {
    .cta-container {
        flex-direction: column;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 3rem;
    }
    .nav-links, .nav-actions {
        display: none;
    }
    .mobile-menu-btn {
        display: block;
    }
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .hero-buttons {
        flex-direction: column;
    }
    .tariff-card.highlight {
        transform: none;
    }
    .tariff-card.highlight:hover {
        transform: translateY(-10px);
    }
}