/* CSS Variables */
:root {
    --primary-color: #ff6b6b;
    --secondary-color: #4ecdc4;
    --accent-color: #45b7d1;
    --dark-color: #2c3e50;
    --light-color: #ecf0f1;
    --white: #ffffff;
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-500: #adb5bd;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: #343a40;
    --gray-900: #212529;
    --gradient-primary: linear-gradient(135deg, #ff6b6b 0%, #4ecdc4 100%);
    --gradient-secondary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --aptos-green: #00d4aa;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 25px rgba(0,0,0,0.15);
}

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

body {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--white);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* Background Animation */
.bg-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.floating-icon {
    position: absolute;
    font-size: 2rem;
    color: rgba(255, 255, 255, 0.1);
    animation: float 6s ease-in-out infinite;
}

.floating-icon:nth-child(1) { top: 10%; left: 10%; animation-delay: 0s; }
.floating-icon:nth-child(2) { top: 20%; right: 15%; animation-delay: 1s; }
.floating-icon:nth-child(3) { top: 60%; left: 5%; animation-delay: 2s; }
.floating-icon:nth-child(4) { bottom: 30%; right: 10%; animation-delay: 3s; }
.floating-icon:nth-child(5) { bottom: 15%; left: 20%; animation-delay: 4s; }
.floating-icon:nth-child(6) { top: 40%; right: 5%; animation-delay: 5s; }

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

/* Main Content */
.main-content {
    position: relative;
    z-index: 2;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.content-wrapper {
    max-width: 800px;
    text-align: center;
    animation: fadeInUp 1s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Brand Section */
.brand-section {
    margin-bottom: 3rem;
}

.logo-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.logo-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: var(--white);
    box-shadow: var(--shadow-lg);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.brand-name {
    font-size: 3.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0;
}

.tagline {
    margin-top: 0.5rem;
}

.highlight {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--secondary-color);
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

/* Intro Section */
.intro-section {
    animation: fadeInUp 1s ease-out 0.3s both;
}

.main-heading {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.main-description {
    font-size: 1.25rem;
    line-height: 1.6;
    margin-bottom: 2.5rem;
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Stats Row */
.stats-row {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

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

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--aptos-green);
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.8;
    font-weight: 500;
}

/* Features Preview */
.features-preview {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.1);
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: transform 0.2s ease;
}

.feature-item:hover {
    transform: translateY(-2px);
}

.feature-item i {
    color: var(--aptos-green);
    font-size: 1.2rem;
}

.feature-item span {
    font-weight: 500;
    font-size: 0.9rem;
}

/* Aptos Badge */
.aptos-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--aptos-green);
    color: var(--white);
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: var(--shadow-md);
    animation: glow 2s ease-in-out infinite alternate;
}

@keyframes glow {
    from { box-shadow: 0 0 10px var(--aptos-green); }
    to { box-shadow: 0 0 20px var(--aptos-green), 0 0 30px var(--aptos-green); }
}

/* Floating AI Button */
.floating-ai-button {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 1000;
    cursor: pointer;
    animation: bounceIn 1s ease-out 2s both;
}

@keyframes bounceIn {
    0% { transform: scale(0); opacity: 0; }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); opacity: 1; }
}

.ai-button-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--white);
    box-shadow: var(--shadow-xl);
    transition: all 0.3s ease;
    position: relative;
    z-index: 2;
}

.floating-ai-button:hover .ai-button-icon {
    transform: scale(1.1);
}

.ai-button-text {
    position: absolute;
    right: 80px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--white);
    color: var(--dark-color);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: var(--shadow-md);
    opacity: 0;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.floating-ai-button:hover .ai-button-text {
    opacity: 1;
    transform: translateY(-50%) translateX(-10px);
}

.ai-button-pulse {
    position: absolute;
    top: 0;
    left: 0;
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: var(--primary-color);
    opacity: 0.3;
    animation: pulse-ring 2s infinite;
}

@keyframes pulse-ring {
    0% { transform: scale(1); opacity: 0.3; }
    100% { transform: scale(1.5); opacity: 0; }
}

/* Chat Modal */
.chat-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.chat-modal.show {
    display: flex;
    animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.chat-modal-content {
    background: var(--white);
    border-radius: 20px;
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 500px;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
    from { transform: translateY(30px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.chat-modal-header {
    background: var(--gradient-primary);
    color: var(--white);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.chat-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 600;
    font-size: 1.1rem;
}

.chat-title i {
    font-size: 1.3rem;
}

.chat-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.aptos-verified {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.2);
    padding: 0.5rem 1rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

.aptos-verified i {
    color: var(--aptos-green);
}

.close-chat {
    background: none;
    border: none;
    color: var(--white);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: background 0.2s ease;
}

.close-chat:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Chat Messages */
.chat-messages {
    flex: 1;
    padding: 1.5rem;
    overflow-y: auto;
    background: var(--gray-100);
    max-height: 400px;
}

.message {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1rem;
    animation: messageSlide 0.3s ease-out;
}

@keyframes messageSlide {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.message-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.1rem;
    flex-shrink: 0;
}

.message-content {
    background: var(--white);
    padding: 1rem;
    border-radius: 15px;
    box-shadow: var(--shadow-sm);
    color: var(--dark-color);
    flex: 1;
}

.message-content p {
    margin: 0 0 0.5rem 0;
    line-height: 1.5;
}

.message-content p:last-of-type {
    margin-bottom: 0;
}

.message-content ul {
    margin: 0.5rem 0;
    padding-left: 1.2rem;
}

.message-content li {
    margin: 0.25rem 0;
    line-height: 1.4;
}

.message-time {
    font-size: 0.75rem;
    color: var(--gray-500);
    margin-top: 0.5rem;
    display: block;
}

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

.user-message .message-content {
    background: var(--gradient-primary);
    color: var(--white);
}

.user-message .message-avatar {
    background: var(--gray-400);
}

/* Chat Input */
.chat-input-container {
    padding: 1.5rem;
    background: var(--white);
    border-top: 1px solid var(--gray-200);
}

.chat-input-wrapper {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.chat-input-wrapper input {
    flex: 1;
    padding: 0.875rem 1rem;
    border: 2px solid var(--gray-300);
    border-radius: 25px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.2s ease;
    background: var(--white);
    color: var(--dark-color);
}

.chat-input-wrapper input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.send-btn {
    width: 45px;
    height: 45px;
    background: var(--gradient-primary);
    border: none;
    border-radius: 50%;
    color: var(--white);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    transition: transform 0.2s ease;
}

.send-btn:hover {
    transform: scale(1.1);
}

.input-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 0.75rem;
    font-size: 0.8rem;
    color: var(--gray-500);
}

/* Footer */
.footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 10;
    background: rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(10px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-content p {
    margin: 0;
    font-size: 0.9rem;
    opacity: 0.8;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-links a {
    color: var(--white);
    text-decoration: none;
    font-size: 0.9rem;
    opacity: 0.8;
    transition: opacity 0.2s ease;
}

.footer-links a:hover {
    opacity: 1;
}

.aptos-footer {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    opacity: 0.8;
}

.aptos-footer i {
    color: var(--aptos-green);
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    z-index: 3000;
    display: none;
    align-items: center;
    justify-content: center;
}

.loading-overlay.show {
    display: flex;
}

.loading-spinner {
    text-align: center;
    color: var(--white);
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Responsive Design */
@media (max-width: 768px) {
    .brand-name {
        font-size: 2.5rem;
    }
    
    .main-heading {
        font-size: 2rem;
    }
    
    .main-description {
        font-size: 1.1rem;
    }
    
    .stats-row {
        gap: 2rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .features-preview {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }
    
    .floating-ai-button {
        bottom: 20px;
        right: 20px;
    }
    
    .ai-button-icon {
        width: 60px;
        height: 60px;
        font-size: 1.8rem;
    }
    
    .ai-button-pulse {
        width: 60px;
        height: 60px;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
    }
    
    .footer-links {
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .main-content {
        padding: 1rem;
    }
    
    .brand-name {
        font-size: 2rem;
    }
    
    .logo-icon {
        width: 60px;
        height: 60px;
        font-size: 2rem;
    }
    
    .main-heading {
        font-size: 1.5rem;
    }
    
    .stats-row {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .chat-modal-content {
        margin: 1rem;
        max-height: 90vh;
    }
    
    .floating-ai-button .ai-button-text {
        display: none;
    }
}