:root {
    --dock-bg: #f5f5f7;
    --dock-text: #1d1d1f;
    --dock-primary: #0071e3;
    --dock-card: rgba(255, 255, 255, 0.7);
    --dock-border: rgba(0, 0, 0, 0.05);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    background-color: var(--dock-bg); color: var(--dock-text);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.5; overflow-x: hidden;
    background-image: 
        radial-gradient(circle at 15% 50%, rgba(0, 113, 227, 0.05), transparent 25%),
        radial-gradient(circle at 85% 30%, rgba(0, 113, 227, 0.05), transparent 25%);
}
a { text-decoration: none; color: inherit; }

.dock-container { max-width: 1000px; margin: 0 auto; padding: 0 20px;}

/* Floating Dock Header */
.dock-header-wrapper {
    position: fixed; top: 20px; left: 0; width: 100%; z-index: 100;
    display: flex; justify-content: center;
}
.dock-header {
    display: flex; align-items: center; justify-content: space-between;
    background: rgba(255, 255, 255, 0.8); backdrop-filter: saturate(180%) blur(20px);
    padding: 12px 25px; border-radius: 30px; border: 1px solid var(--dock-border);
    box-shadow: 0 10px 30px rgba(0,0,0,0.08); width: 90%; max-width: 800px;
}
.dock-brand { font-size: 18px; font-weight: 700; letter-spacing: -0.5px;}
.dock-nav { display: flex; gap: 25px; }
.dock-nav a {
    font-size: 14px; font-weight: 500; color: #515154;
    transition: color 0.2s; padding: 5px 10px; border-radius: 15px;
}
.dock-nav a:hover, .dock-nav a.active { color: var(--dock-text); background: rgba(0,0,0,0.05); }

/* Hero */
.dock-hero {
    text-align: center; padding-top: 150px; margin-bottom: 80px;
}
.dock-hero h1 {
    font-size: 64px; font-weight: 700; letter-spacing: -2px; line-height: 1.1;
    margin-bottom: 20px; color: #1d1d1f;
}
.dock-hero p {
    font-size: 24px; font-weight: 400; color: #86868b; margin-bottom: 40px;
    max-width: 600px; margin-left: auto; margin-right: auto;
}
.dock-hero-visual {
    width: 100%; max-width: 800px; height: 400px; margin: 0 auto 50px;
    background: linear-gradient(135deg, #e2e2e2, #ffffff);
    border-radius: 30px; box-shadow: 0 20px 50px rgba(0,0,0,0.1);
    position: relative; overflow: hidden;
}
.dock-hero-visual::after {
    content: ''; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
    width: 200px; height: 200px; border-radius: 50%;
    background: radial-gradient(circle, var(--dock-primary) 0%, transparent 70%);
    opacity: 0.2; filter: blur(30px);
}

.btn-dock {
    display: inline-block; padding: 14px 30px; font-size: 17px; font-weight: 500;
    color: #fff; background: var(--dock-primary); border-radius: 25px;
    transition: all 0.2s; margin: 0 10px;
}
.btn-dock:hover { background: #0077ed; transform: scale(1.02); }
.btn-dock-alt {
    display: inline-block; padding: 14px 30px; font-size: 17px; font-weight: 500;
    color: var(--dock-primary); background: rgba(0, 113, 227, 0.1); border-radius: 25px;
    transition: all 0.2s; margin: 0 10px;
}
.btn-dock-alt:hover { background: rgba(0, 113, 227, 0.15); transform: scale(1.02); }

/* Grid Features */
.dock-grid {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin-bottom: 80px;
}
.dk-card {
    background: var(--dock-card); backdrop-filter: blur(10px);
    border-radius: 24px; padding: 40px; text-align: center;
    border: 1px solid var(--dock-border); box-shadow: 0 4px 15px rgba(0,0,0,0.03);
    transition: transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.dk-card:hover { transform: scale(1.02); }
.dk-card h3 { font-size: 24px; font-weight: 600; margin-bottom: 15px; letter-spacing: -0.5px;}
.dk-card p { font-size: 17px; color: #86868b;}
.dk-card.large { grid-column: span 2; display: flex; align-items: center; text-align: left; padding: 50px;}
.dk-card.large .dk-content { flex: 1; padding-right: 40px;}
.dk-card.large h3 { font-size: 32px;}
.dk-card.large .dk-visual {
    flex: 1; height: 200px; background: rgba(0,0,0,0.03); border-radius: 16px;
}

/* Nodes */
.dock-nodes { margin-bottom: 80px; text-align: center;}
.dock-nodes h2 { font-size: 32px; font-weight: 600; margin-bottom: 30px; letter-spacing: -0.5px;}
.dn-list { display: flex; flex-wrap: wrap; gap: 15px; justify-content: center;}
.dn-item {
    padding: 10px 20px; background: #fff; border-radius: 20px;
    font-size: 15px; font-weight: 500; box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

/* FAQ */
.dock-faq { margin-bottom: 100px; max-width: 700px; margin-left: auto; margin-right: auto;}
.dock-faq h2 { font-size: 32px; font-weight: 600; margin-bottom: 40px; text-align: center; letter-spacing: -0.5px;}
.d-faq-item {
    margin-bottom: 20px; background: #fff; border-radius: 18px; padding: 25px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.03);
}
.d-fq { font-size: 19px; font-weight: 600; margin-bottom: 10px; letter-spacing: -0.3px;}
.d-fa { font-size: 16px; color: #515154;}

footer { text-align: center; padding: 30px 0 50px; color: #86868b; font-size: 12px;}

@media (max-width: 768px) {
    .dock-header { width: 95%; padding: 10px 15px; }
    .dock-nav { gap: 10px; }
    .dock-nav a { font-size: 13px; padding: 5px; }
    .dock-hero h1 { font-size: 48px; }
    .dock-grid { grid-template-columns: 1fr; }
    .dk-card.large { grid-column: span 1; flex-direction: column; text-align: center; padding: 30px;}
    .dk-card.large .dk-content { padding-right: 0; margin-bottom: 30px;}
    .dk-card.large .dk-visual { width: 100%; }
    .btn-dock, .btn-dock-alt { display: block; margin: 10px auto; width: 80%;}
}