/* XinBox Main Styles */
:root {
    --primary-color: #00d4ff;
    --secondary-color: #1a1f3a;
    --accent-color: #ff6b35;
    --success-color: #00ff88;
    --warning-color: #ffaa00;
    --error-color: #ff4444;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --bg-primary: #0a0e1a;
    --bg-secondary: #1a1f3a;
    --bg-tertiary: #2a2f4a;
    --border-color: rgba(0, 212, 255, 0.3);
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    --gradient-primary: linear-gradient(135deg, #00d4ff 0%, #0099cc 100%);
    --gradient-secondary: linear-gradient(135deg, #1a1f3a 0%, #2a2f4a 100%);
}

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

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(26, 31, 58, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    font-size: 24px;
    font-weight: 800;
    color: var(--primary-color);
}

.nav-logo i {
    margin-right: 10px;
    font-size: 28px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

.language-selector select {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 8px 12px;
    font-size: 14px;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.nav-toggle .bar {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: var(--gradient-secondary);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(0, 212, 255, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(255, 107, 53, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 40% 80%, rgba(0, 255, 136, 0.1) 0%, transparent 50%);
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(2px 2px at 20px 30px, var(--primary-color), transparent),
        radial-gradient(2px 2px at 40px 70px, var(--accent-color), transparent),
        radial-gradient(1px 1px at 90px 40px, var(--success-color), transparent),
        radial-gradient(1px 1px at 130px 80px, var(--primary-color), transparent);
    background-repeat: repeat;
    background-size: 200px 200px;
    animation: float 20s infinite linear;
    opacity: 0.3;
}

@keyframes float {
    0% { transform: translateY(0px); }
    100% { transform: translateY(-200px); }
}

.hero-content {
    text-align: center;
    z-index: 2;
    position: relative;
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 20px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 1s ease;
}

.hero-subtitle {
    font-size: 2rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 20px;
    animation: fadeInUp 1s ease 0.2s both;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 40px;
    animation: fadeInUp 1s ease 0.4s both;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease 0.6s both;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 30px;
    border: none;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 5px 15px rgba(0, 212, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 212, 255, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

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

/* Sections */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 20px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Modules Section */
.modules {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.modules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.module-card {
    background: var(--bg-tertiary);
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.module-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.module-card:hover::before {
    transform: scaleX(1);
}

.module-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow);
    border-color: var(--primary-color);
}

.module-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
}

.module-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.module-description {
    color: var(--text-secondary);
    margin-bottom: 25px;
    line-height: 1.6;
}

.module-btn {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    padding: 12px 25px;
    border-radius: 25px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

/* Upload Section */
.upload-section {
    padding: 100px 0;
    background: var(--bg-primary);
}

.upload-container {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.upload-area {
    border: 3px dashed var(--border-color);
    border-radius: 20px;
    padding: 60px 40px;
    margin: 40px 0;
    transition: all 0.3s ease;
    cursor: pointer;
}

.upload-area:hover,
.upload-area.dragover {
    border-color: var(--primary-color);
    background: rgba(0, 212, 255, 0.05);
}

.upload-content i {
    font-size: 4rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.upload-content p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.upload-progress {
    margin-top: 30px;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 15px;
}

.progress-fill {
    height: 100%;
    background: var(--gradient-primary);
    width: 0%;
    transition: width 0.3s ease;
}

/* Results Section */
.results-section {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.results-container {
    max-width: 1000px;
    margin: 0 auto;
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.result-card {
    background: var(--bg-tertiary);
    border-radius: 15px;
    padding: 30px;
    border: 1px solid var(--border-color);
    text-align: center;
}

.result-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
}

.result-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--success-color);
    margin-bottom: 10px;
}

.result-label {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.results-actions {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* About Section */
.about {
    padding: 100px 0;
    background: var(--bg-primary);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 40px;
    margin-bottom: 60px;
}

.about-card {
    background: var(--bg-tertiary);
    border-radius: 20px;
    padding: 40px;
    text-align: center;
    border: 1px solid var(--border-color);
}

.about-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto 30px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: white;
}

.about-card h3 {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.about-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.partnership-highlight {
    text-align: center;
    padding: 40px;
    background: var(--gradient-secondary);
    border-radius: 20px;
    border: 1px solid var(--border-color);
}

.partnership-highlight p {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--primary-color);
}

/* Contact Section */
.contact {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.contact-form-container {
    max-width: 600px;
    margin: 0 auto;
}

.contact-form {
    background: var(--bg-tertiary);
    border-radius: 20px;
    padding: 40px;
    border: 1px solid var(--border-color);
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-primary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 16px;
    transition: border-color 0.3s ease;
}

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

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Chat Widget */
.chat-widget {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 1000;
}

.chat-toggle {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.chat-toggle:hover {
    transform: scale(1.1);
}

.chat-toggle i {
    font-size: 1.5rem;
    color: white;
}

.chat-container {
    position: absolute;
    bottom: 80px;
    right: 0;
    width: 350px;
    height: 500px;
    background: var(--bg-tertiary);
    border-radius: 20px;
    border: 1px solid var(--border-color);
    display: none;
    flex-direction: column;
    box-shadow: var(--shadow);
}

.chat-container.active {
    display: flex;
}

.chat-header {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chat-header h3 {
    color: var(--text-primary);
    font-size: 1.2rem;
}

.chat-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1.2rem;
}

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

.chat-message {
    margin-bottom: 15px;
    padding: 12px 16px;
    border-radius: 15px;
    max-width: 80%;
}

.chat-message.user {
    background: var(--primary-color);
    color: white;
    margin-left: auto;
}

.chat-message.bot {
    background: var(--bg-primary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.chat-input {
    padding: 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 10px;
}

.chat-input input {
    flex: 1;
    padding: 12px 16px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 25px;
    color: var(--text-primary);
    font-size: 14px;
}

.chat-input button {
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    border: none;
    border-radius: 50%;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Footer */
.footer {
    background: var(--bg-primary);
    padding: 40px 0;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.footer-content {
    max-width: 600px;
    margin: 0 auto;
}

.footer-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.footer-logo i {
    margin-right: 10px;
}

.footer-content p {
    color: var(--text-secondary);
    margin-bottom: 10px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--bg-secondary);
        flex-direction: column;
        justify-content: flex-start;
        padding-top: 50px;
        transition: left 0.3s ease;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    .nav-toggle.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .modules-grid {
        grid-template-columns: 1fr;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .chat-container {
        width: 300px;
        height: 400px;
    }
    
    .chat-widget {
        bottom: 20px;
        right: 20px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .module-card,
    .about-card {
        padding: 30px 20px;
    }
    
    .contact-form {
        padding: 30px 20px;
    }
}