:root {
    --primary: #3b82f6; /* Biru ceria */
    --secondary: #60a5fa;
    --bg-light: #ffffff;
    --glass: rgba(255, 255, 255, 0.8);
    --glass-border: rgba(0, 0, 0, 0.06);
    --text-main: #1e293b; /* Biru gelap pekat */
    --text-dim: #64748b;
}

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

body {
    font-family: 'Plus Jakarta Sans', sans-serif;
    background: var(--bg-light);
    color: var(--text-main);
    overflow-x: hidden;
    /* Background ceria dengan sentuhan lembut */
    background-image: 
        radial-gradient(at 0% 0%, rgba(59, 130, 246, 0.05) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(96, 165, 250, 0.05) 0px, transparent 50%);
    min-height: 100vh;
}

/* NAVBAR */
nav {
    display: flex; justify-content: space-between; align-items: center;
    padding: 20px 8%; position: fixed; width: 100%; z-index: 1000;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.7);
    border-bottom: 1px solid var(--glass-border);
}

.logo { font-size: 1.4rem; font-weight: 800; text-decoration: none; color: #000; letter-spacing: -1px; }
.logo span { color: var(--primary); }

.nav-links a {
    text-decoration: none; color: var(--text-main); font-weight: 700; font-size: 0.85rem;
    padding: 10px 22px; border-radius: 12px; border: 1px solid #e2e8f0;
    transition: 0.3s; background: #fff;
}

.nav-links a:hover { background: var(--primary); color: #fff; border-color: var(--primary); }

/* HERO SECTION */
.hero {
    min-height: 100vh; display: flex; flex-direction: column;
    justify-content: center; align-items: center; text-align: center;
    padding: 100px 20px;
}

.premium-badge {
    background: #eff6ff;
    color: var(--primary);
    padding: 6px 16px;
    border-radius: 100px;
    font-size: 0.7rem;
    font-weight: 800;
    letter-spacing: 1px;
    margin-bottom: 20px;
    border: 1px solid #dbeafe;
}

.hero h1 {
    font-size: clamp(2.5rem, 8vw, 4.5rem); font-weight: 800; line-height: 1.1;
    letter-spacing: -2px; margin-bottom: 25px; color: #0f172a;
}

.hero h1 span { color: var(--primary); }

.hero p {
    font-size: 1.1rem; color: var(--text-dim);
    max-width: 600px; margin-bottom: 40px; line-height: 1.6;
}

/* THE MAGIC CLAIM BAR */
.claim-container { width: 100%; max-width: 600px; }

.claim-box {
    display: flex; align-items: center; background: #fff;
    padding: 8px; border-radius: 20px; border: 2px solid #e2e8f0;
    transition: all 0.3s ease;
    box-shadow: 0 10px 25px rgba(0,0,0,0.03);
}

.claim-box:focus-within {
    border-color: var(--primary);
    box-shadow: 0 15px 30px rgba(59, 130, 246, 0.1);
}

.prefix { font-weight: 700; color: #94a3b8; padding-left: 15px; font-size: 1.1rem; }

#claimInput {
    background: none; border: none; outline: none; color: #1e293b;
    font-size: 1.1rem; font-weight: 700; padding: 12px 8px; width: 100%;
}

.btn-glow {
    background: var(--primary); color: #fff; border: none;
    padding: 14px 28px; border-radius: 15px; font-weight: 800;
    cursor: pointer; transition: 0.3s;
}

.btn-glow:hover { transform: translateY(-2px); box-shadow: 0 5px 15px rgba(59, 130, 246, 0.3); }

/* STATUS MESSAGE */
#status-msg { margin-top: 15px; font-weight: 700; font-size: 0.9rem; min-height: 25px; }

/* DECORATION */
.blur-blob {
    position: absolute; width: 400px; height: 400px;
    background: var(--secondary); filter: blur(100px);
    opacity: 0.08; z-index: -1; border-radius: 50%;
}