:root {
    --primary-color: #00d4ff;
    --primary-dark: #0099cc;
    --secondary-color: #7c3aed;
    --accent-color: #10b981;
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.5);
    --bg-primary: #0a0e17;
    --bg-secondary: #111827;
    --bg-card: #1a2234;
    --bg-hover: #243044;
    --border-color: rgba(255, 255, 255, 0.1);
    --shadow-primary: 0 4px 20px rgba(0, 212, 255, 0.15);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.3);
    --gradient-primary: linear-gradient(135deg, #00d4ff 0%, #7c3aed 100%);
    --gradient-secondary: linear-gradient(135deg, #10b981 0%, #00d4ff 100%);
    --transition-fast: 0.3s ease;
    --transition-medium: 0.5s ease;
    --transition-slow: 0.7s ease;
}

.light-theme {
    --text-primary: #1f2937;
    --text-secondary: #4b5563;
    --text-muted: #9ca3af;
    --bg-primary: #ffffff;
    --bg-secondary: #f3f4f6;
    --bg-card: #ffffff;
    --bg-hover: #f9fafb;
    --border-color: rgba(0, 0, 0, 0.1);
    --shadow-primary: 0 4px 20px rgba(0, 212, 255, 0.1);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition-medium), color var(--transition-medium);
}

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

.header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    background-color: rgba(10, 14, 23, 0.95); backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color); transition: all var(--transition-fast);
}

.light-theme .header { background-color: rgba(255, 255, 255, 0.95); }

.navbar { display: flex; align-items: center; justify-content: space-between; padding: 18px 0; }
.navbar .container { display: flex; align-items: center; justify-content: space-between; width: 100%; }

.logo {
    display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--text-primary);
    font-weight: 700; font-size: 1.25rem; transition: transform var(--transition-fast);
}

.logo:hover { transform: scale(1.05); }

.logo-icon {
    width: 42px; height: 42px; display: flex; align-items: center; justify-content: center;
    background: var(--gradient-primary); border-radius: 12px; font-size: 1.25rem;
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.3);
}

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

.nav-links { display: flex; list-style: none; gap: 8px; align-items: center; }

.nav-link {
    text-decoration: none; color: var(--text-secondary); font-weight: 500; font-size: 0.9375rem;
    padding: 10px 18px; border-radius: 10px; position: relative; transition: all var(--transition-fast);
}

.nav-link:hover { color: var(--primary-color); background: rgba(0, 212, 255, 0.08); transform: translateY(-1px); }

.nav-link::after {
    content: ""; position: absolute; bottom: 6px; left: 50%; transform: translateX(-50%);
    width: 0; height: 2px; background: var(--gradient-primary); transition: width var(--transition-fast);
    border-radius: 2px;
}

.nav-link:hover::after { width: 60%; }

.nav-link.active {
    color: var(--primary-color);
    background: rgba(0, 212, 255, 0.12);
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.15);
}

.nav-link.active::after {
    width: 60%;
}

.nav-link.active:hover {
    background: rgba(0, 212, 255, 0.18);
    transform: translateY(-1px);
}

.theme-toggle {
    position: relative; width: 46px; height: 46px; border: none; border-radius: 14px;
    background: var(--bg-card); color: var(--text-primary); cursor: pointer;
    display: flex; align-items: center; justify-content: center; font-size: 1.25rem;
    transition: all var(--transition-fast); overflow: hidden;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.2); border: 1px solid var(--border-color);
}

.theme-toggle::before {
    content: ""; position: absolute; top: 0; left: 0; right: 0; bottom: 0;
    background: var(--gradient-primary); opacity: 0; transition: opacity var(--transition-fast);
}

.theme-toggle:hover::before { opacity: 0.12; }
.theme-toggle:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0, 212, 255, 0.35); border-color: rgba(0, 212, 255, 0.3); }
.theme-toggle:active { transform: translateY(0); }

.theme-icon { position: relative; z-index: 1; transition: transform var(--transition-fast); }
.theme-toggle:hover .theme-icon { transform: rotate(15deg) scale(1.1); }

.menu-toggle {
    display: none; flex-direction: column; justify-content: center; align-items: center; gap: 6px;
    width: 48px; height: 48px; border: 1px solid var(--border-color); border-radius: 14px;
    background: var(--bg-card); cursor: pointer; padding: 0; transition: all var(--transition-fast);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
}

.menu-toggle:hover { background: var(--bg-hover); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0, 212, 255, 0.25); border-color: rgba(0, 212, 255, 0.3); }
.menu-toggle:active { transform: translateY(0); }

.menu-toggle .menu-line {
    width: 22px; height: 2.5px; background: var(--text-primary); border-radius: 2px;
    transition: all var(--transition-fast);
}

.menu-toggle.active .menu-line:nth-child(1) { transform: rotate(45deg) translate(6px, 6px); }
.menu-toggle.active .menu-line:nth-child(2) { opacity: 0; transform: translateX(-10px); }
.menu-toggle.active .menu-line:nth-child(3) { transform: rotate(-45deg) translate(6px, -6px); }

.hero { min-height: 100vh; display: flex; align-items: center; padding: 120px 0 80px; position: relative; overflow: hidden; }

.hero-content { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }

.hero-badge {
    display: inline-block; padding: 8px 20px; background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3); border-radius: 20px; font-size: 0.875rem;
    color: var(--primary-color); margin-bottom: 20px; animation: fadeInUp 0.6s ease forwards;
}

.hero-title { font-size: 3.5rem; font-weight: 700; line-height: 1.2; margin-bottom: 24px; animation: fadeInUp 0.6s ease 0.1s forwards; opacity: 0; }

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

.hero-description { font-size: 1.125rem; color: var(--text-secondary); margin-bottom: 32px; max-width: 500px; animation: fadeInUp 0.6s ease 0.2s forwards; opacity: 0; }

.hero-buttons { display: flex; gap: 16px; animation: fadeInUp 0.6s ease 0.3s forwards; opacity: 0; }

.btn { display: inline-flex; align-items: center; justify-content: center; padding: 14px 32px; border-radius: 10px; font-weight: 600; text-decoration: none; transition: all var(--transition-fast); border: none; cursor: pointer; }

.btn-primary { background: var(--gradient-primary); color: white; box-shadow: var(--shadow-primary); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(0, 212, 255, 0.3); }

.btn-secondary { background: transparent; color: var(--text-primary); border: 1px solid var(--border-color); }
.btn-secondary:hover { background: var(--bg-card); border-color: var(--primary-color); }

.btn-block { width: 100%; }

.hero-visual { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; animation: fadeInUp 0.6s ease 0.4s forwards; opacity: 0; }

.hero-card {
    background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 16px;
    padding: 24px; text-align: center; transition: all var(--transition-fast); position: relative; overflow: hidden;
}

.hero-card::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--gradient-primary); transform: scaleX(0); transition: transform var(--transition-fast); }
.hero-card:hover::before { transform: scaleX(1); }
.hero-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-card); }

.card-icon { font-size: 2rem; margin-bottom: 12px; }
.card-number { font-size: 2.5rem; font-weight: 700; background: var(--gradient-primary); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; margin-bottom: 4px; }
.card-label { font-size: 0.875rem; color: var(--text-secondary); }

.hero-decoration {
    position: absolute; top: 50%; right: -100px; transform: translateY(-50%);
    width: 500px; height: 500px; background: radial-gradient(circle, rgba(0, 212, 255, 0.1) 0%, transparent 70%);
    border-radius: 50%; animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse { 0%, 100% { transform: translateY(-50%) scale(1); opacity: 0.5; } 50% { transform: translateY(-50%) scale(1.1); opacity: 0.8; } }
@keyframes fadeInUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }

.section-header { text-align: center; margin-bottom: 60px; }
.section-title { font-size: 2.5rem; font-weight: 700; margin-bottom: 16px; }

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

.section-description { font-size: 1.125rem; color: var(--text-secondary); max-width: 600px; margin: 0 auto; }

.about { padding: 100px 0; }
.about-content { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }

.about-text h3 { font-size: 1.75rem; margin-bottom: 20px; }
.about-text p { font-size: 1rem; color: var(--text-secondary); margin-bottom: 16px; line-height: 1.8; }

.about-stats { display: flex; gap: 40px; margin-top: 30px; }
.stat-item { text-align: center; }
.stat-value { display: block; font-size: 2.5rem; font-weight: 700; background: var(--gradient-primary); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.stat-label { font-size: 0.875rem; color: var(--text-secondary); }

.about-image { position: relative; border-radius: 20px; overflow: hidden; }
.image-container { position: relative; }
.image-container img { width: 100%; height: 400px; object-fit: cover; transition: transform var(--transition-slow); }
.image-container:hover img { transform: scale(1.05); }
.image-overlay { position: absolute; top: 0; left: 0; right: 0; bottom: 0; background: linear-gradient(to bottom, rgba(0, 212, 255, 0.1) 0%, transparent 100%); }

.products { padding: 100px 0; background: var(--bg-secondary); }
.products-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }

.product-card {
    background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 20px;
    padding: 30px; transition: all var(--transition-fast); position: relative; overflow: hidden;
}

.product-card::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: var(--gradient-primary); transform: scaleX(0); transition: transform var(--transition-fast); }
.product-card:hover::before { transform: scaleX(1); }
.product-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-card); }

.product-icon { font-size: 2.5rem; margin-bottom: 20px; }
.product-title { font-size: 1.25rem; font-weight: 600; margin-bottom: 12px; }
.product-description { font-size: 0.9375rem; color: var(--text-secondary); margin-bottom: 20px; line-height: 1.7; }
.product-link { display: inline-flex; align-items: center; color: var(--primary-color); font-weight: 600; text-decoration: none; transition: color var(--transition-fast); }
.product-link:hover { color: var(--secondary-color); }

.technology { padding: 100px 0; }
.tech-content { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }

.tech-list { display: flex; flex-direction: column; gap: 30px; }

.tech-item {
    display: flex; gap: 20px; padding: 24px; background: var(--bg-card);
    border: 1px solid var(--border-color); border-radius: 16px; transition: all var(--transition-fast);
}

.tech-item:hover { border-color: var(--primary-color); box-shadow: var(--shadow-primary); }

.tech-number { font-size: 2rem; font-weight: 700; color: var(--primary-color); opacity: 0.3; }
.tech-info h4 { font-size: 1.125rem; font-weight: 600; margin-bottom: 8px; }
.tech-info p { font-size: 0.9375rem; color: var(--text-secondary); }

.tech-visual { display: flex; justify-content: center; align-items: center; }
.tech-circle { position: relative; width: 300px; height: 300px; }

.circle-ring { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); border: 2px solid rgba(0, 212, 255, 0.2); border-radius: 50%; }
.circle-ring:nth-child(1) { width: 100%; height: 100%; animation: rotate 20s linear infinite; }
.circle-ring:nth-child(2) { width: 75%; height: 75%; animation: rotate 15s linear infinite reverse; }
.circle-ring:nth-child(3) { width: 50%; height: 50%; animation: rotate 10s linear infinite; }

@keyframes rotate { from { transform: translate(-50%, -50%) rotate(0deg); } to { transform: translate(-50%, -50%) rotate(360deg); } }

.circle-center { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); text-align: center; }
.center-icon { font-size: 3rem; display: block; margin-bottom: 10px; }
.center-text { font-size: 1rem; font-weight: 600; color: var(--text-secondary); }

.news { padding: 100px 0; background: var(--bg-secondary); }
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }

.news-card {
    background: var(--bg-card); border: 1px solid var(--border-color);
    border-radius: 20px; overflow: hidden; transition: all var(--transition-fast);
}

.news-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-card); }

.news-image { height: 200px; overflow: hidden; }
.news-image img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--transition-slow); }
.news-card:hover .news-image img { transform: scale(1.1); }

.news-content { padding: 24px; }
.news-date { font-size: 0.875rem; color: var(--primary-color); margin-bottom: 12px; }
.news-title { font-size: 1.125rem; font-weight: 600; margin-bottom: 12px; transition: color var(--transition-fast); }
.news-card:hover .news-title { color: var(--primary-color); }
.news-description { font-size: 0.9375rem; color: var(--text-secondary); line-height: 1.6; }

.contact { padding: 100px 0; }
.contact-content { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }

.contact-info { display: flex; flex-direction: column; gap: 30px; }

.contact-item {
    display: flex; gap: 20px; padding: 20px; background: var(--bg-card);
    border: 1px solid var(--border-color); border-radius: 16px; transition: all var(--transition-fast);
}

.contact-item:hover { border-color: var(--primary-color); box-shadow: var(--shadow-primary); }

.contact-icon { font-size: 1.5rem; width: 40px; height: 40px; display: flex; align-items: center; justify-content: center; background: rgba(0, 212, 255, 0.1); border-radius: 12px; }
.contact-label { display: block; font-size: 0.875rem; color: var(--text-muted); margin-bottom: 4px; }
.contact-value { font-weight: 600; }

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

.form-group { position: relative; margin-bottom: 24px; }
.form-group input, .form-group textarea {
    width: 100%; padding: 16px 20px; background: transparent; border: 1px solid var(--border-color);
    border-radius: 12px; color: var(--text-primary); font-size: 1rem; transition: all var(--transition-fast); outline: none;
}

.form-group input:focus, .form-group textarea:focus { border-color: var(--primary-color); box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1); }

.form-group label {
    position: absolute; top: 50%; left: 20px; transform: translateY(-50%);
    color: var(--text-muted); pointer-events: none; transition: all var(--transition-fast);
}

.form-group input:focus + label, .form-group input:not(:placeholder-shown) + label,
.form-group textarea:focus + label, .form-group textarea:not(:placeholder-shown) + label {
    top: 0; left: 12px; font-size: 0.75rem; padding: 0 8px; background: var(--bg-card);
}

.form-group textarea { resize: none; }

.footer { padding: 60px 0 30px; background: var(--bg-secondary); border-top: 1px solid var(--border-color); }
.footer-content { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; margin-bottom: 40px; }

.footer-logo { margin-bottom: 16px; }
.footer-description { font-size: 0.9375rem; color: var(--text-secondary); line-height: 1.6; }

.footer-section h4 { font-size: 1rem; font-weight: 600; margin-bottom: 20px; }

.footer-links { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-links a { text-decoration: none; color: var(--text-secondary); transition: color var(--transition-fast); }
.footer-links a:hover { color: var(--primary-color); }

.footer-contact { list-style: none; display: flex; flex-direction: column; gap: 10px; color: var(--text-secondary); font-size: 0.9375rem; }

.footer-bottom { text-align: center; padding-top: 30px; border-top: 1px solid var(--border-color); color: var(--text-muted); font-size: 0.875rem; }
.icp-info { margin-top: 8px; font-size: 0.8125rem; }
.icp-info a { color: var(--text-muted); text-decoration: none; transition: color var(--transition-fast); }
.icp-info a:hover { color: var(--primary-color); }

@media (max-width: 992px) {
    .hero-content { grid-template-columns: 1fr; gap: 40px; }
    .hero-visual { grid-template-columns: repeat(3, 1fr); }
    .hero-title { font-size: 2.5rem; }
    .about-content, .tech-content, .contact-content { grid-template-columns: 1fr; gap: 40px; }
    .products-grid, .news-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-content { grid-template-columns: 1fr; text-align: center; }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed; top: 80px; left: -100%; width: 100%; height: calc(100vh - 80px);
        background: var(--bg-secondary); flex-direction: column; align-items: center;
        justify-content: flex-start; padding-top: 40px; gap: 10px; transition: left var(--transition-medium); z-index: 999;
    }
    .nav-links.active { left: 0; }
    .menu-toggle { display: flex; }
    .hero-title { font-size: 2rem; }
    .hero-buttons { flex-direction: column; }
    .hero-visual { grid-template-columns: 1fr; }
    .about-stats { flex-direction: column; gap: 20px; }
    .products-grid, .news-grid { grid-template-columns: 1fr; }
    .contact-form { padding: 24px; }
}

@media (max-width: 480px) {
    .container { padding: 0 15px; }
    .hero-title { font-size: 1.5rem; }
    .hero-description { font-size: 1rem; }
    .section-title { font-size: 1.75rem; }
}

/* Success Message Styles */
.success-message {
    display: none;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    background: var(--bg-card);
    border-radius: 20px;
    padding: 35px 45px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border-color);
    z-index: 10000;
    max-width: 420px;
    width: 90%;
    text-align: center;
    animation: successPopup 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

@keyframes successPopup {
    from {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.8);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
}

.success-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: #ffffff;
    box-shadow: 0 8px 25px rgba(16, 185, 129, 0.4);
    animation: iconBounce 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) 0.2s both;
}

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

.success-content {
    animation: contentFadeIn 0.5s ease 0.4s both;
}

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

.success-title {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.success-desc {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Loading Overlay */
.loading-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 14, 23, 0.7);
    backdrop-filter: blur(5px);
    z-index: 9999;
}

.light-theme .loading-overlay {
    background: rgba(255, 255, 255, 0.8);
}

/* Loading Spinner */
.loading-spinner {
    display: none;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 50px;
    height: 50px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    z-index: 10000;
}

@keyframes spin {
    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}