/* eSIM Myanmar - Enhanced Professional Stylesheet */
/* AI Chat, Anniversary Music, and Premium Features */

/* Import AOS Animation Library */
@import url('https://unpkg.com/aos@2.3.1/dist/aos.css');

/* 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;
}

/* Music Control */
.music-control {
    position: fixed;
    top: 100px;
    right: 20px;
    z-index: 1001;
    background: rgba(37, 99, 235, 0.9);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
    transition: all 0.3s ease;
}

.music-control:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
}

.music-control button {
    background: none;
    border: none;
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    transition: all 0.3s ease;
}

/* AI Chat Interface */
.ai-chat-container {
    position: fixed;
    top: 0;
    right: 0;
    width: 400px;
    height: 100vh;
    background: white;
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.15);
    display: none;
    flex-direction: column;
    z-index: 1002;
    transform: translateX(100%);
    transition: transform 0.3s ease;
}

.ai-chat-container[aria-hidden="false"] {
    transform: translateX(0);
}

.ai-chat-header {
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    color: white;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.ai-chat-header h3 {
    margin: 0;
    font-size: 1.125rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.ai-chat-close {
    background: none;
    border: none;
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 8px;
    border-radius: 4px;
    transition: background 0.3s ease;
}

.ai-chat-close:hover {
    background: rgba(255, 255, 255, 0.1);
}

.ai-chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    background: #f8fafc;
}

.ai-message,
.user-message {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
    align-items: flex-start;
}

.user-message {
    flex-direction: row-reverse;
}

.ai-avatar,
.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    flex-shrink: 0;
}

.ai-avatar {
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    color: white;
}

.user-avatar {
    background: #6b7280;
    color: white;
}

.ai-message-content,
.user-message-content {
    background: white;
    padding: 12px 16px;
    border-radius: 12px;
    max-width: 280px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    position: relative;
}

.user-message-content {
    background: #2563eb;
    color: white;
}

.ai-message-content p,
.user-message-content p {
    margin: 0;
    font-size: 0.9rem;
    line-height: 1.5;
}

.message-time {
    font-size: 0.75rem;
    opacity: 0.7;
    margin-top: 4px;
    display: block;
}

.typing-indicator .ai-message-content {
    padding: 16px;
}

.typing-dots {
    display: flex;
    gap: 4px;
    align-items: center;
}

.typing-dots span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #2563eb;
    animation: typing 1.4s infinite ease-in-out;
}

.typing-dots span:nth-child(1) { animation-delay: -0.32s; }
.typing-dots span:nth-child(2) { animation-delay: -0.16s; }

@keyframes typing {
    0%, 80%, 100% { transform: scale(0.8); opacity: 0.5; }
    40% { transform: scale(1); opacity: 1; }
}

.ai-chat-input {
    padding: 20px;
    border-top: 1px solid #e5e7eb;
    background: white;
}

.ai-input-container {
    display: flex;
    gap: 8px;
    align-items: flex-end;
}

.ai-input-container input {
    flex: 1;
    border: 2px solid #e5e7eb;
    border-radius: 20px;
    padding: 12px 16px;
    font-size: 0.9rem;
    resize: none;
    min-height: 44px;
    max-height: 120px;
    transition: border-color 0.3s ease;
}

.ai-input-container input:focus {
    outline: none;
    border-color: #2563eb;
}

.ai-input-container button {
    background: #2563eb;
    color: white;
    border: none;
    border-radius: 50%;
    width: 44px;
    height: 44px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ai-input-container button:hover {
    background: #1d4ed8;
    transform: scale(1.05);
}

.ai-quick-questions {
    display: flex;
    gap: 8px;
    margin-top: 12px;
    flex-wrap: wrap;
}

.quick-question {
    background: #f3f4f6;
    border: 1px solid #e5e7eb;
    border-radius: 16px;
    padding: 6px 12px;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.quick-question:hover {
    background: #2563eb;
    color: white;
    border-color: #2563eb;
}

/* Enhanced 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);
    transition: all 0.3s ease;
}

.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 h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #2563eb;
    margin: 0;
}

.logo-tagline {
    font-size: 0.75rem;
    color: #6b7280;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 1.5rem;
    margin: 0;
    align-items: center;
}

.nav-menu a {
    font-weight: 500;
    font-size: 1rem;
    color: #1a1a1a;
    padding: 8px 16px;
    border-radius: 6px;
    transition: all 0.3s ease;
    text-decoration: none;
}

.nav-menu a:hover {
    background: #f3f4f6;
    color: #2563eb;
}

.nav-cta {
    background: #2563eb;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.nav-cta:hover {
    background: #1d4ed8;
    transform: translateY(-1px);
}

/* Enhanced 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-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.95;
    line-height: 1.6;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    background: rgba(255, 255, 255, 0.1);
    padding: 8px 16px;
    border-radius: 20px;
    backdrop-filter: blur(10px);
}

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

.cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    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: 180px;
}

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

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

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

section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

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

.section-subtitle {
    font-size: 1.125rem;
    color: #6b7280;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

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

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

.feature-card {
    background: #ffffff;
    padding: 2.5rem 2rem;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    border: 1px solid #e5e7eb;
    position: relative;
    overflow: hidden;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
}

.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;
    margin-bottom: 1.5rem;
}

.feature-stats {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding-top: 1rem;
    border-top: 1px solid #f3f4f6;
}

.stat-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: #2563eb;
}

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

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

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

.plan-card {
    background: #ffffff;
    border: 2px solid #e5e7eb;
    border-radius: 20px;
    padding: 2.5rem 2rem;
    text-align: center;
    position: relative;
    transition: all 0.3s ease;
    overflow: hidden;
}

.plan-card:hover {
    border-color: #2563eb;
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(37, 99, 235, 0.15);
}

.plan-card.featured {
    border-color: #2563eb;
    background: linear-gradient(135deg, #f0f7ff, #ffffff);
    transform: scale(1.05);
    box-shadow: 0 12px 24px rgba(37, 99, 235, 0.15);
}

.plan-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    color: white;
    padding: 8px 24px;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.plan-header {
    margin-bottom: 2rem;
    position: relative;
    z-index: 1;
}

.plan-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}

.plan-name {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: #1a1a1a;
}

.plan-description {
    font-size: 0.9rem;
    color: #6b7280;
    margin-bottom: 1.5rem;
}

.plan-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 4px;
    margin-bottom: 1rem;
}

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

.amount {
    font-size: 3rem;
    font-weight: 800;
    color: #2563eb;
}

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

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

.plan-features li {
    padding: 0.75rem 0;
    border-bottom: 1px solid #f3f4f6;
    font-size: 1rem;
    color: #4b5563;
    display: flex;
    align-items: center;
    gap: 12px;
}

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

.plan-features li i {
    color: #10b981;
    font-size: 0.875rem;
}

.plan-button {
    width: 100%;
    padding: 16px 24px;
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1.125rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    min-height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    position: relative;
    z-index: 1;
}

.plan-button:hover {
    background: linear-gradient(135deg, #1d4ed8, #1e40af);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.3);
}

.plan-guarantee {
    margin-top: 1rem;
    font-size: 0.875rem;
    color: #6b7280;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .ai-chat-container {
        width: 100%;
        right: 0;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-features {
        flex-direction: column;
        gap: 1rem;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-button {
        width: 100%;
        max-width: 280px;
    }
    
    .features-grid,
    .plans-grid {
        grid-template-columns: 1fr;
    }
    
    .plan-card.featured {
        transform: none;
    }
    
    .music-control {
        top: 90px;
        right: 15px;
        width: 45px;
        height: 45px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    section {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
}