/* MOVON Website Styles */

/* CSS Variables */
:root {
    --primary-dark: #1E3A5F;
    --primary-light: #2A4A73;
    --accent: #00A8B5;
    --accent-light: #00C4D4;
    --text-primary: #F7FAFC;
    --text-secondary: #A0AEC0;
    --text-muted: #718096;
    --bg-primary: #0D1117;
    --bg-secondary: #161B22;
    --bg-card: #1C2128;
    --border: #30363D;
    --gradient-primary: linear-gradient(135deg, #1E3A5F 0%, #00A8B5 100%);
    --gradient-dark: linear-gradient(180deg, #0D1117 0%, #161B22 100%);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    font-size: 16px;
    font-weight: 500;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

.btn-primary {
    background: var(--accent);
    color: var(--bg-primary);
}

.btn-primary:hover {
    background: var(--accent-light);
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(0, 168, 181, 0.4);
}

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

.btn-secondary:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* Section Headers */
.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(0, 168, 181, 0.1);
    color: var(--accent);
    font-size: 14px;
    font-weight: 500;
    border-radius: 20px;
    margin-bottom: 16px;
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 16px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-desc {
    color: var(--text-secondary);
    font-size: 18px;
    max-width: 600px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(13, 17, 23, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px;
}

.nav-brand a {
    display: flex;
    flex-direction: column;
}

.logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 1px;
}

.logo-cn {
    font-size: 12px;
    color: var(--accent);
    font-weight: 500;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 24px;
    cursor: pointer;
}

.nav-menu {
    display: flex;
    gap: 32px;
}

.nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: var(--transition);
}

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

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 72px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.flow-lines {
    position: absolute;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(ellipse at 20% 50%, rgba(0, 168, 181, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 50%, rgba(30, 58, 95, 0.3) 0%, transparent 50%);
}

.flow-lines::before {
    content: '';
    position: absolute;
    top: 20%;
    left: -10%;
    width: 120%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    opacity: 0.3;
    transform: rotate(-5deg);
}

.flow-lines::after {
    content: '';
    position: absolute;
    top: 60%;
    left: -10%;
    width: 120%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary-dark), transparent);
    opacity: 0.3;
    transform: rotate(3deg);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.hero-title {
    font-size: 56px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 24px;
}

.hero-title .highlight {
    display: block;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 24px;
    color: var(--accent);
    font-weight: 500;
    margin-bottom: 8px;
}

.subtitle-cn {
    color: var(--text-secondary);
    font-size: 20px;
}

.hero-description {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

.hero-stats {
    display: flex;
    gap: 48px;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 36px;
    font-weight: 700;
    color: var(--accent);
}

.stat-label {
    font-size: 14px;
    color: var(--text-muted);
}

.scroll-indicator {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--text-muted);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* Services Section */
.services {
    padding: 120px 0;
    background: var(--bg-secondary);
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-header .section-title,
.section-header .section-desc {
    margin-left: auto;
    margin-right: auto;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 32px;
    transition: var(--transition);
}

.service-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.service-card.wide {
    grid-column: 1 / -1;
}

.service-icon {
    width: 56px;
    height: 56px;
    background: rgba(0, 168, 181, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.service-icon i {
    font-size: 24px;
    color: var(--accent);
}

.service-card h3 {
    font-size: 20px;
    margin-bottom: 16px;
}

.service-card ul {
    color: var(--text-secondary);
}

.service-card ul li {
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
}

.service-card ul li:last-child {
    border-bottom: none;
}

/* Product Section */
.product {
    padding: 120px 0;
}

.product-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.product-tagline {
    font-size: 24px;
    color: var(--accent);
    margin: 16px 0;
}

.product-desc {
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.8;
}

.product-features {
    margin-bottom: 32px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    color: var(--text-secondary);
}

.feature-item i {
    color: var(--accent);
}

.product-visual {
    position: relative;
}

.product-modules {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.module-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.module-card:hover {
    border-color: var(--accent);
    transform: translateX(8px);
}

.module-name {
    font-weight: 600;
    color: var(--text-primary);
}

.module-cn {
    color: var(--accent);
    font-size: 14px;
}

/* About Section */
.about {
    padding: 120px 0;
    background: var(--bg-secondary);
}

.about-text {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 48px;
    line-height: 1.8;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 32px;
}

.about-feature {
    text-align: center;
    padding: 32px;
    background: var(--bg-card);
    border-radius: 16px;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.about-feature:hover {
    border-color: var(--accent);
}

.about-feature i {
    font-size: 40px;
    color: var(--accent);
    margin-bottom: 16px;
}

.about-feature h4 {
    margin-bottom: 8px;
}

.about-feature p {
    color: var(--text-secondary);
    font-size: 14px;
}

/* Cases Section */
.cases {
    padding: 120px 0;
}

.case-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 48px;
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 48px;
    transition: var(--transition);
}

.case-card:hover {
    border-color: var(--accent);
}

.case-content h3 {
    font-size: 28px;
    margin-bottom: 16px;
}

.case-desc {
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.8;
}

.case-highlights {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.case-highlights li {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-secondary);
}

.case-highlights i {
    color: var(--accent);
}

.case-stats {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 32px;
}

.case-stat {
    text-align: center;
    padding: 24px;
    background: rgba(0, 168, 181, 0.05);
    border-radius: 12px;
}

.stat-num {
    display: block;
    font-size: 36px;
    font-weight: 700;
    color: var(--accent);
}

.stat-text {
    color: var(--text-muted);
    font-size: 14px;
}

/* Contact Section */
.contact {
    padding: 120px 0;
    background: var(--bg-secondary);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
}

.contact-desc {
    color: var(--text-secondary);
    margin: 24px 0 48px;
    line-height: 1.8;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.contact-item i {
    font-size: 20px;
    color: var(--accent);
    margin-top: 4px;
}

.contact-item .label {
    display: block;
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 4px;
}

.contact-item .value {
    color: var(--text-primary);
    font-weight: 500;
}

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

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    color: var(--text-secondary);
    font-size: 14px;
}

.form-group input,
.form-group textarea {
    padding: 14px 16px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 16px;
    transition: var(--transition);
}

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

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

/* Footer */
.footer {
    padding: 64px 0 32px;
    background: var(--bg-primary);
    border-top: 1px solid var(--border);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

.footer-logo-cn {
    font-size: 14px;
    color: var(--accent);
    margin-left: 8px;
}

.footer-tagline {
    color: var(--text-secondary);
    margin-top: 16px;
}

.footer-links h4,
.footer-contact h4,
.footer-social h4 {
    font-size: 16px;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: var(--text-secondary);
}

.footer-links a:hover {
    color: var(--accent);
}

.footer-contact p {
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.social-links {
    display: flex;
    gap: 16px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: var(--transition);
}

.social-links a:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.footer-bottom {
    text-align: center;
    padding-top: 32px;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 14px;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 44px;
    }
    
    .product-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .case-card {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--bg-primary);
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        border-bottom: 1px solid var(--border);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 24px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .service-card.wide {
        grid-column: auto;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .social-links {
        justify-content: center;
    }
}

/* Animation Classes */
.fade-in {
    animation: fadeIn 0.6s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent);
}