/* eSIM Myanmar - Professional Telecom-Grade Stylesheet */

/* CSS Reset and Base Styles */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #1a1a1a;
    background-color: #ffffff;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Skip Link for Accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: #000;
    color: #fff;
    padding: 8px;
    text-decoration: none;
    z-index: 10000;
    border-radius: 4px;
}

.skip-link:focus {
    top: 6px;
}

/* Screen Reader Only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: #1a1a1a;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2.25rem; }
h3 { font-size: 1.875rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1.125rem; }

p {
    margin-bottom: 1rem;
    font-size: 1rem;
    line-height: 1.7;
}

a {
    color: #2563eb;
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover,
a:focus {
    color: #1d4ed8;
    text-decoration: underline;
}

/* Header */
.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.navbar {
    padding: 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-image {
    width: 48px;
    height: 48px;
    border-radius: 8px;
    object-fit: cover;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: #2563eb;
    margin: 0;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.hamburger {
    width: 24px;
    height: 3px;
    background: #1a1a1a;
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 2px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    margin: 0;
}

.nav-menu a {
    font-weight: 500;
    font-size: 1rem;
    color: #1a1a1a;
    padding: 8px 16px;
    border-radius: 6px;
    transition: all 0.3s ease;
}

.nav-menu a:hover,
.nav-menu a:focus {
    background: #f3f4f6;
    color: #2563eb;
    text-decoration: none;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.8), rgba(29, 78, 216, 0.9));
    z-index: -1;
}

.hero-content {
    max-width: 800px;
    padding: 0 20px;
    color: white;
    z-index: 1;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    opacity: 0.95;
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 32px;
    font-size: 1.125rem;
    font-weight: 600;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    min-height: 56px;
    min-width: 160px;
}

.cta-button.primary {
    background: #ffffff;
    color: #2563eb;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.cta-button.primary:hover,
.cta-button.primary:focus {
    background: #f8fafc;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.cta-button.secondary {
    background: transparent;
    color: #ffffff;
    border: 2px solid #ffffff;
}

.cta-button.secondary:hover,
.cta-button.secondary:focus {
    background: #ffffff;
    color: #2563eb;
    transform: translateY(-2px);
}

/* Section Styles */
section {
    padding: 100px 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    color: #1a1a1a;
}

/* Features Section */
.features-section {
    background: #f8fafc;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: #ffffff;
    padding: 2.5rem 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    border: 1px solid #e5e7eb;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    display: block;
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1a1a1a;
}

.feature-description {
    font-size: 1rem;
    color: #6b7280;
    line-height: 1.6;
}

/* Plans Section */
.plans-section {
    background: #ffffff;
}

.plans-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.plan-card {
    background: #ffffff;
    border: 2px solid #e5e7eb;
    border-radius: 16px;
    padding: 2.5rem 2rem;
    text-align: center;
    position: relative;
    transition: all 0.3s ease;
}

.plan-card:hover {
    border-color: #2563eb;
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(37, 99, 235, 0.1);
}

.plan-card.featured {
    border-color: #2563eb;
    background: linear-gradient(135deg, #f0f7ff, #ffffff);
    transform: scale(1.05);
}

.plan-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: #2563eb;
    color: white;
    padding: 6px 20px;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

.plan-header {
    margin-bottom: 2rem;
}

.plan-name {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #1a1a1a;
}

.plan-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 4px;
}

.currency {
    font-size: 1.5rem;
    font-weight: 600;
    color: #2563eb;
}

.amount {
    font-size: 3rem;
    font-weight: 700;
    color: #2563eb;
}

.period {
    font-size: 1rem;
    color: #6b7280;
}

.plan-features {
    list-style: none;
    margin-bottom: 2rem;
}

.plan-features li {
    padding: 0.75rem 0;
    border-bottom: 1px solid #f3f4f6;
    font-size: 1rem;
    color: #4b5563;
}

.plan-features li:last-child {
    border-bottom: none;
}

.plan-button {
    width: 100%;
    padding: 16px 24px;
    background: #2563eb;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.125rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    min-height: 56px;
}

.plan-button:hover,
.plan-button:focus {
    background: #1d4ed8;
    transform: translateY(-2px);
}

/* Coverage Section */
.coverage-section {
    background: #f8fafc;
}

.coverage-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-top: 3rem;
}

.coverage-info h3 {
    font-size: 1.875rem;
    margin-bottom: 1.5rem;
    color: #1a1a1a;
}

.coverage-list {
    list-style: none;
    margin: 2rem 0;
}

.coverage-list li {
    padding: 0.75rem 0;
    padding-left: 1.5rem;
    position: relative;
    font-size: 1rem;
    color: #4b5563;
}

.coverage-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #10b981;
    font-weight: bold;
}

.coverage-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: #2563eb;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.875rem;
    color: #6b7280;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.coverage-map {
    background: #ffffff;
    border-radius: 12px;
    padding: 3rem;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.map-placeholder {
    background: #f3f4f6;
    border-radius: 8px;
    padding: 4rem 2rem;
    border: 2px dashed #d1d5db;
}

.map-placeholder p {
    font-size: 1.25rem;
    font-weight: 600;
    color: #6b7280;
    margin-bottom: 0.5rem;
}

.map-placeholder small {
    color: #9ca3af;
}

/* Support Section */
.support-section {
    background: #ffffff;
}

.support-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.support-card {
    background: #f8fafc;
    padding: 2.5rem 2rem;
    border-radius: 12px;
    text-align: center;
    border: 1px solid #e5e7eb;
    transition: all 0.3s ease;
}

.support-card:hover {
    background: #ffffff;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.support-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #1a1a1a;
}

.support-card p {
    color: #6b7280;
    margin-bottom: 2rem;
}

.support-button {
    padding: 12px 24px;
    background: #2563eb;
    color: white;
    border: none;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    min-height: 48px;
}

.support-button:hover,
.support-button:focus {
    background: #1d4ed8;
    transform: translateY(-1px);
}

/* Contact Section */
.contact-section {
    background: #f8fafc;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-top: 3rem;
}

.contact-info h3 {
    font-size: 1.875rem;
    margin-bottom: 2rem;
    color: #1a1a1a;
}

.contact-item {
    margin-bottom: 1.5rem;
    font-size: 1rem;
}

.contact-item strong {
    display: block;
    margin-bottom: 0.5rem;
    color: #1a1a1a;
    font-weight: 600;
}

.contact-item span,
.contact-item a {
    color: #6b7280;
}

/* Contact Form */
.contact-form {
    background: #ffffff;
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.contact-form h3 {
    margin-bottom: 2rem;
    color: #1a1a1a;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #374151;
    font-size: 0.875rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e5e7eb;
    border-radius: 6px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-submit {
    width: 100%;
    padding: 16px 24px;
    background: #2563eb;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.125rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    min-height: 56px;
}

.form-submit:hover,
.form-submit:focus {
    background: #1d4ed8;
    transform: translateY(-1px);
}

/* Footer */
.footer {
    background: #1a1a1a;
    color: #ffffff;
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1.5rem;
    color: #ffffff;
}

.footer-section p {
    color: #d1d5db;
    line-height: 1.6;
}

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

.footer-section ul li {
    margin-bottom: 0.75rem;
}

.footer-section ul li a {
    color: #d1d5db;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover,
.footer-section ul li a:focus {
    color: #ffffff;
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 2rem;
    text-align: center;
}

.footer-bottom p {
    color: #9ca3af;
    margin-bottom: 0.5rem;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .coverage-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .coverage-stats {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding-top: 2rem;
        transition: left 0.3s ease;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu a {
        font-size: 1.125rem;
        padding: 1rem 2rem;
        width: 100%;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-button {
        width: 100%;
        max-width: 280px;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .features-grid,
    .plans-grid,
    .support-grid {
        grid-template-columns: 1fr;
    }
    
    .plan-card.featured {
        transform: none;
    }
    
    .coverage-stats {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .nav-container {
        padding: 0 16px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-content {
        padding: 0 16px;
    }
    
    section {
        padding: 60px 0;
    }
    
    .feature-card,
    .plan-card,
    .support-card {
        padding: 2rem 1.5rem;
    }
    
    .contact-form {
        padding: 2rem 1.5rem;
    }
}

/* Print Styles */
@media print {
    .header,
    .nav-toggle,
    .hero-actions,
    .plan-button,
    .support-button,
    .form-submit {
        display: none;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
    
    .hero {
        min-height: auto;
        padding: 2rem 0;
    }
    
    section {
        padding: 1rem 0;
        page-break-inside: avoid;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    .hero-overlay {
        background: rgba(0, 0, 0, 0.8);
    }
    
    .cta-button.primary {
        border: 2px solid #000;
    }
    
    .feature-card,
    .plan-card,
    .support-card {
        border-width: 2px;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}