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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
    line-height: 1.6;
    cursor: pointer;
}

/* Full page clickable overlay */
.full-page-link {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10;
    cursor: pointer;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    position: relative;
    z-index: 5;
    pointer-events: none;
}

/* Header */
.header {
    text-align: center;
    padding: 60px 20px 40px;
    color: white;
}

.header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

.header .subtitle {
    font-size: 1.2rem;
    opacity: 0.95;
    max-width: 700px;
    margin: 0 auto;
}

/* Hero Section */
.hero {
    background: white;
    border-radius: 16px;
    padding: 40px;
    margin-bottom: 30px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.15);
}

.hero p {
    margin-bottom: 15px;
    font-size: 1.05rem;
    color: #555;
}

.hero p:last-child {
    margin-bottom: 0;
}

/* Info Section - Cards */
.info-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin-bottom: 40px;
}

.card {
    background: white;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 50px rgba(0,0,0,0.2);
}

.card h3 {
    color: #667eea;
    font-size: 1.3rem;
    margin-bottom: 12px;
    font-weight: 600;
}

.card p {
    color: #666;
    font-size: 1rem;
}

/* eSIM Section */
.esim-section,
.why-section {
    background: white;
    border-radius: 16px;
    padding: 50px 40px;
    margin-bottom: 40px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.15);
}

.esim-section h2,
.why-section h2,
.faq-section h2,
.contact-section h2 {
    color: #667eea;
    font-size: 2rem;
    margin-bottom: 20px;
    text-align: center;
    font-weight: 700;
}

.section-intro {
    text-align: center;
    max-width: 900px;
    margin: 0 auto 25px;
    color: #555;
    font-size: 1.05rem;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin-top: 35px;
}

.card-grid .card {
    background: #f8f9ff;
    border: 1px solid #e8ebff;
}

/* FAQ Section */
.faq-section {
    background: white;
    border-radius: 16px;
    padding: 50px 40px;
    margin-bottom: 40px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.15);
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.faq-item {
    background: #f8f9ff;
    border-radius: 12px;
    padding: 25px;
    border-left: 4px solid #667eea;
}

.faq-item h3 {
    color: #333;
    font-size: 1.1rem;
    margin-bottom: 10px;
    font-weight: 600;
}

.faq-item p {
    color: #666;
    font-size: 0.95rem;
}

/* Contact Section */
.contact-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 16px;
    padding: 50px 40px;
    margin-bottom: 30px;
    text-align: center;
    color: white;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
}

.contact-section h2 {
    color: white;
}

.contact-section p {
    max-width: 700px;
    margin: 0 auto 25px;
    opacity: 0.95;
}

.phone-display {
    background: rgba(255,255,255,0.2);
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 18px 35px;
    border-radius: 50px;
    margin: 20px 0;
    backdrop-filter: blur(10px);
}

.phone-icon {
    font-size: 1.5rem;
}

.phone-number {
    font-size: 1.4rem;
    font-weight: 600;
    color: white;
    text-decoration: none;
    pointer-events: auto;
}

.tagline {
    font-size: 1.1rem;
    font-weight: 500;
    margin-top: 20px !important;
    opacity: 0.9;
}

/* Footer */
.footer {
    text-align: center;
    padding: 30px 20px;
    color: white;
}

.disclaimer {
    font-size: 0.85rem;
    opacity: 0.8;
    max-width: 800px;
    margin: 0 auto 15px;
    line-height: 1.5;
}

.copyright {
    font-size: 0.9rem;
    opacity: 0.9;
    font-weight: 500;
}

/* Floating Call Button */
.floating-call-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: linear-gradient(135deg, #00c853 0%, #00e676 100%);
    color: white;
    padding: 15px 25px;
    border-radius: 50px;
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    box-shadow: 0 8px 30px rgba(0, 200, 83, 0.4);
    z-index: 1000;
    animation: pulse 2s infinite;
    transition: transform 0.3s ease;
    pointer-events: auto;
}

.floating-call-btn:hover {
    transform: scale(1.05);
}

.call-icon {
    font-size: 1.3rem;
}

@keyframes pulse {
    0% {
        box-shadow: 0 8px 30px rgba(0, 200, 83, 0.4);
    }
    50% {
        box-shadow: 0 8px 50px rgba(0, 200, 83, 0.6);
    }
    100% {
        box-shadow: 0 8px 30px rgba(0, 200, 83, 0.4);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .header h1 {
        font-size: 1.8rem;
    }
    
    .header .subtitle {
        font-size: 1rem;
    }
    
    .hero {
        padding: 25px;
    }
    
    .esim-section,
    .why-section,
    .faq-section,
    .contact-section {
        padding: 30px 20px;
    }
    
    .esim-section h2,
    .why-section h2,
    .faq-section h2,
    .contact-section h2 {
        font-size: 1.5rem;
    }
    
    .card {
        padding: 20px;
    }
    
    .phone-display {
        padding: 12px 20px;
    }
    
    .phone-number {
        font-size: 1.1rem;
    }
    
    .floating-call-btn {
        bottom: 20px;
        right: 20px;
        padding: 12px 20px;
        font-size: 1rem;
    }
    
    .call-text {
        display: none;
    }
    
    .floating-call-btn {
        border-radius: 50%;
        width: 60px;
        height: 60px;
        justify-content: center;
        padding: 0;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 10px;
    }
    
    .header {
        padding: 40px 15px 30px;
    }
    
    .info-section {
        gap: 15px;
    }
    
    .card-grid,
    .faq-grid {
        gap: 15px;
    }
}