:root {
    --primary: #0066FF;
    --primary-hover: #0052CC;
    --bg-page: #FFFFFF;
    --bg-section: #F9FAFB;
    --text-main: #111827;
    --text-muted: #4B5563;
    --border: #E5E7EB;
    --radius-lg: 24px;
    --radius-md: 16px;
    --radius-sm: 8px;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-hover: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--bg-page);
    color: var(--text-main);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Background Decoration */
.bg-decoration {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}

.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.6;
    animation: float 15s infinite alternate ease-in-out, colorShift 10s infinite alternate linear;
    will-change: transform, opacity, background;
}

.orb-1 {
    width: 520px;
    height: 520px;
    background: radial-gradient(circle, rgba(0, 102, 255, 0.4) 0%, transparent 70%);
    top: -150px;
    left: -100px;
}

.orb-2 {
    width: 480px;
    height: 480px;
    background: radial-gradient(circle, rgba(255, 0, 150, 0.3) 0%, transparent 70%);
    top: -50px;
    right: -150px;
    animation-delay: -5s;
}

.orb-3 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(150, 0, 255, 0.3) 0%, transparent 70%);
    top: 15%;
    left: 25%;
    animation-delay: -10s;
}

@keyframes float {
    0% {
        transform: translate(0, 0) scale(1) rotate(0deg);
    }
    50% {
        transform: translate(60px, 80px) scale(1.1) rotate(45deg);
    }
    100% {
        transform: translate(-40px, 40px) scale(0.9) rotate(-45deg);
    }
}

@keyframes colorShift {
    0% {
        filter: blur(100px) hue-rotate(0deg);
    }
    50% {
        filter: blur(120px) hue-rotate(90deg);
    }
    100% {
        filter: blur(100px) hue-rotate(180deg);
    }
}

/* Navbar */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    height: 64px;
    display: flex;
    align-items: center;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 18px;
    color: var(--text-main);
}

.logo img {
    width: 32px;
    height: 32px;
    border-radius: 6px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 24px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-muted);
    font-size: 14px;
    font-weight: 500;
    transition: color 0.2s;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 15px;
    text-decoration: none;
    transition: all 0.2s;
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 102, 255, 0.2);
}

.btn-primary-sm {
    padding: 8px 16px;
    font-size: 14px;
    background: var(--primary);
    color: #FFFFFF !important;
}

.btn-secondary {
    background: white;
    color: var(--text-main);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: var(--bg-section);
    border-color: #D1D5DB;
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 1px solid var(--primary);
}

.btn-outline:hover {
    background: rgba(0, 102, 255, 0.05);
}

/* Hero Section */
.hero {
    padding: 100px 0 80px;
    text-align: center;
}

.badge {
    display: inline-block;
    padding: 6px 12px;
    background: rgba(0, 102, 255, 0.08);
    color: var(--primary);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 24px;
}

.hero h1 {
    font-size: 56px;
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.1;
    margin-bottom: 24px;
    color: var(--text-main);
}

.hero .highlight {
    color: var(--primary);
}

.hero p {
    font-size: 18px;
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto 40px;
    line-height: 1.6;
}

.cta-group {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 40px;
}

.hero-footer {
    font-size: 13px;
    color: #9CA3AF;
    font-weight: 500;
}

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

.section-tag {
    color: var(--primary);
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 12px;
}

.section-header h2 {
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 16px;
}

.section-header p {
    font-size: 16px;
    color: var(--text-muted);
}

/* Features Section */
.features {
    padding: 100px 0;
    background: var(--bg-section);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.feature-card {
    background: white;
    padding: 32px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    transition: all 0.3s;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.icon-box {
    width: 48px;
    height: 48px;
    background: rgba(0, 102, 255, 0.05);
    color: var(--primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

.feature-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
}

.feature-card p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.6;
}

/* Pricing Section */
.pricing {
    padding: 100px 0;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 450px));
    gap: 32px;
    justify-content: center;
}

.pricing-card {
    background: white;
    padding: 48px 40px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    display: flex;
    flex-direction: column;
}

.pricing-card.featured {
    border: 2px solid var(--primary);
    position: relative;
    box-shadow: 0 10px 30px -10px rgba(0, 102, 255, 0.15);
}

.pricing-card.featured::after {
    content: "Recommended";
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 700;
}

.card-header h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
}

.price {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 32px;
}

.price span {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-muted);
}

.price-features {
    list-style: none;
    margin-bottom: 40px;
    flex-grow: 1;
}

.price-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.price-features li svg {
    color: #10B981;
}

/* Steps Section */
.install {
    padding: 100px 0;
    background: var(--bg-section);
}

.steps-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
}

.step-card {
    text-align: center;
    padding: 40px;
}

.step-num {
    font-size: 40px;
    font-weight: 800;
    color: rgba(0, 102, 255, 0.1);
    margin-bottom: 16px;
}

.step-card h4 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
}

.step-card p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.6;
}

/* FAQ Section */
.faq {
    padding: 100px 0;
}

.faq-list {
    max-width: 700px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 32px;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--border);
}

.faq-item:last-child {
    border-bottom: none;
}

.faq-item h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 12px;
}

.faq-item p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.6;
}

/* Footer */
.footer {
    padding: 80px 0 40px;
    border-top: 1px solid var(--border);
    text-align: center;
}

.footer-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-weight: 700;
    font-size: 18px;
    margin-bottom: 16px;
}

.footer-logo img {
    width: 28px;
    height: 28px;
}

.footer p {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 32px;
}

.footer-bottom {
    font-size: 13px;
    color: #9CA3AF;
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 { font-size: 36px; }
    .hero p { font-size: 16px; }
    .cta-group { flex-direction: column; }
    .nav-links { display: none; }
    .pricing-grid { grid-template-columns: 1fr; }
}