/* DataZone Main Stylesheet */
:root {
    /* Colors from specification */
    --primary-green: #10B981;
    --primary-orange: #F59E0B;
    --primary-blue: #3B82F6;
    --success-green: #D1FAE5;
    --light-bg: #F9FAFB;
    --dark-bg: #1F2937;
    --text-light: #111827;
    --text-dark: #F9FAFB;
    
    /* Additional colors */
    --white: #FFFFFF;
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-400: #9CA3AF;
    --gray-500: #6B7280;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;
    
    /* Network colors */
    --mtn-yellow: #FFCC00;
    --vodafone-red: #E60000;
    --airteltigo-orange: #FF6600;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Border radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-light);
    background-color: var(--white);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--spacing-md);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

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

.btn-primary:hover {
    background-color: #059669;
    border-color: #059669;
}

.btn-outline {
    background-color: transparent;
    color: var(--primary-green);
    border-color: var(--primary-green);
}

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

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
}

.btn-block {
    width: 100%;
}

/* Text utilities */
.text-primary { color: var(--primary-green); }
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* Navigation */
.navbar {
    background-color: var(--white);
    box-shadow: var(--shadow-sm);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo {
    height: 40px;
    width: auto;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-green);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav-link {
    color: var(--gray-700);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

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

.nav-auth {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.nav-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--gray-700);
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, var(--light-bg) 0%, var(--white) 100%);
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray-600);
    margin-bottom: var(--spacing-xl);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
}

.hero-stats {
    display: flex;
    gap: var(--spacing-xl);
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-green);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray-600);
}

/* Phone Mockup */
.phone-mockup {
    position: relative;
    width: 300px;
    height: 600px;
    background: linear-gradient(145deg, #2d3748, #4a5568);
    border-radius: 30px;
    padding: 20px;
    box-shadow: var(--shadow-xl);
    margin: 0 auto;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background-color: var(--white);
    border-radius: 20px;
    padding: var(--spacing-lg);
    overflow: hidden;
}

.wallet-card {
    background: linear-gradient(135deg, var(--primary-green), #059669);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    color: var(--white);
    margin-bottom: var(--spacing-lg);
}

.balance-label {
    display: block;
    font-size: 0.875rem;
    opacity: 0.9;
    margin-bottom: var(--spacing-xs);
}

.balance-amount {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
}

.wallet-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.btn-wallet {
    flex: 1;
    padding: var(--spacing-sm);
    background-color: rgba(255, 255, 255, 0.2);
    border: none;
    border-radius: var(--radius-md);
    color: var(--white);
    font-size: 0.875rem;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.btn-wallet:hover {
    background-color: rgba(255, 255, 255, 0.3);
}

/* Sections */
.services, .networks, .pricing, .contact {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--gray-600);
}

/* Services Grid */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.service-card {
    background-color: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-green), #059669);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    font-size: 2rem;
    color: var(--white);
}

.service-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

.service-description {
    color: var(--gray-600);
}

/* Networks Section */
.networks {
    background-color: var(--light-bg);
}

.networks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.network-card {
    background-color: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: transform 0.2s ease;
}

.network-card:hover {
    transform: translateY(-5px);
}

.network-logo {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--white);
}

.network-logo.mtn {
    background-color: var(--mtn-yellow);
    color: var(--gray-900);
}

.network-logo.vodafone {
    background-color: var(--vodafone-red);
}

.network-logo.airteltigo {
    background-color: var(--airteltigo-orange);
}

/* Pricing Section */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.pricing-card {
    background-color: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    position: relative;
    transition: transform 0.2s ease, border-color 0.2s ease;
}

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

.pricing-card.featured {
    border-color: var(--primary-green);
    transform: scale(1.05);
}

.pricing-badge {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--primary-green);
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
}

.pricing-header {
    margin-bottom: var(--spacing-xl);
}

.price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-md);
}

.currency {
    font-size: 1rem;
    color: var(--gray-600);
}

.amount {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-green);
}

.period {
    font-size: 1rem;
    color: var(--gray-600);
}

.pricing-features {
    list-style: none;
    margin-bottom: var(--spacing-xl);
}

.pricing-features li {
    padding: var(--spacing-sm) 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.pricing-features i {
    color: var(--primary-green);
}

/* Contact Section */
.contact {
    background-color: var(--light-bg);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.contact-icon {
    width: 60px;
    height: 60px;
    background-color: var(--primary-green);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--white);
}

.contact-details h4 {
    margin-bottom: var(--spacing-xs);
}

.contact-details p {
    color: var(--gray-600);
    margin: 0;
}

.contact-form {
    background-color: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: border-color 0.2s ease;
}

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

/* Footer */
.footer {
    background-color: var(--gray-900);
    color: var(--gray-300);
    padding: 60px 0 20px;
}

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

.footer-section h4 {
    color: var(--white);
    margin-bottom: var(--spacing-lg);
}

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

.footer-section ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-section ul li a {
    color: var(--gray-400);
    text-decoration: none;
    transition: color 0.2s ease;
}

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

.social-links {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.social-links a {
    width: 40px;
    height: 40px;
    background-color: var(--gray-800);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
    text-decoration: none;
    transition: all 0.2s ease;
}

.social-links a:hover {
    background-color: var(--primary-green);
    color: var(--white);
}

.footer-bottom {
    border-top: 1px solid var(--gray-800);
    padding-top: var(--spacing-lg);
    text-align: center;
    color: var(--gray-500);
}

/* WhatsApp Float Button */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background-color: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--white);
    text-decoration: none;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    transition: transform 0.2s ease;
}

.whatsapp-float:hover {
    transform: scale(1.1);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .phone-mockup {
        width: 250px;
        height: 500px;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .pricing-card.featured {
        transform: none;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .services, .networks, .pricing, .contact {
        padding: 60px 0;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .phone-mockup {
        width: 200px;
        height: 400px;
    }
}