/* KEEP ALL EXISTING TOOLTIP CSS */
.tooltip-container {
    position: relative;
    display: inline-block;
    width: 100%;
    margin-top: 15px;
}
.tooltip-container .tooltip-text {
    visibility: hidden;
    width: 280px;
    background-color: #fff;
    color: #333;
    text-align: left;
    border-radius: 8px;
    padding: 15px;
    position: absolute;
    z-index: 10;
    bottom: 130%; 
    left: 50%;
    margin-left: -140px; 
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
    font-size: 0.9rem;
    line-height: 1.5;
    border: 1px solid #eaeaea;
    opacity: 0;
    transition: opacity 0.3s, bottom 0.3s;
}
.tooltip-container .tooltip-text::after {
    content: "";
    position: absolute;
    top: 100%; 
    left: 50%;
    margin-left: -8px;
    border-width: 8px;
    border-style: solid;
    border-color: #fff transparent transparent transparent;
}
.tooltip-container:hover .tooltip-text {
    visibility: visible;
    opacity: 1;
    bottom: 115%; 
}
.info-icon {
    display: inline-block;
    background: rgba(255,255,255,0.25);
    border-radius: 50%;
    width: 22px;
    height: 22px;
    text-align: center;
    line-height: 22px;
    font-size: 13px;
    margin-left: 10px;
    font-weight: bold;
    vertical-align: middle;
}

/* KEEP ALL EXISTING GLOBAL STYLES */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
body {
    background-color: #f4f7f6;
    color: #333;
    line-height: 1.6;
}
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

/* KEEP ALL HEADER/NAV STYLES */
.maintenance-banner { background-color: #ffc107; color: #111; text-align: center; padding: 10px 20px; font-size: 0.9rem; border-bottom: 2px solid #e0a800; }
header { background-color: #111; padding: 15px 0; border-bottom: 1px solid #333; position: relative; }
.header-container { max-width: 1200px; margin: 0 auto; padding: 0 20px; display: flex; justify-content: space-between; align-items: center; }
.left-nav { display: flex; align-items: center; gap: 40px; }
.site-logo { height: 60px; margin: -15px 0; width: auto; display: block; }
.main-nav { display: flex; gap: 25px; }
.main-nav a { color: #fff; text-decoration: none; font-weight: 500; font-size: 0.95rem; transition: color 0.3s; }
.main-nav a:hover { color: #d4af37; }
.right-nav { display: flex; align-items: center; }
.btn-login { color: white; text-decoration: none; font-weight: 600; border: 1px solid #555; padding: 8px 18px; border-radius: 4px; font-size: 0.9rem; transition: all 0.3s; }
.btn-login:hover { background-color: white; color: #111; border-color: white; }
.menu-toggle { display: none; flex-direction: column; justify-content: space-around; width: 28px; height: 22px; background: transparent; border: none; cursor: pointer; padding: 0; }
.menu-toggle span { width: 28px; height: 2px; background: white; transition: all 0.3s linear; }
.mobile-nav { display: none; flex-direction: column; background-color: #111; position: absolute; top: 100%; left: 0; width: 100%; padding: 10px 20px 20px; border-top: 1px solid #333; z-index: 1000; box-shadow: 0 10px 20px rgba(0,0,0,0.5); }
.mobile-nav.active { display: flex; }
.mobile-nav a { color: white; text-decoration: none; font-size: 1.1rem; padding: 12px 0; border-bottom: 1px solid #222; }
.mobile-nav a.mobile-login-link { color: #d4af37; border-bottom: none; font-weight: bold; padding-top: 15px; }

/* KEEP ALL HERO & FORM STYLES */
.hero { background-image: linear-gradient(to bottom, rgba(17, 17, 17, 0.7) 0%, rgba(17, 17, 17, 0.95) 100%), url('../img/hero-van-art.png'); background-size: cover; background-position: center center; background-repeat: no-repeat; background-attachment: fixed; color: white; text-align: center; padding: 100px 20px 60px; position: relative; border-bottom: 2px solid #333; overflow: hidden; }
.hero h2 { font-size: 2.5rem; color: #fff; text-shadow: 0 2px 5px rgba(0,0,0,0.5); margin-bottom: 15px; }
.calculator-card { background: white; padding: 30px; border-radius: 12px; box-shadow: 0 10px 25px rgba(0,0,0,0.05); margin-bottom: 50px; }
.form-group { margin-bottom: 20px; }
label { display: block; font-weight: 600; margin-bottom: 8px; }
input, select { width: 100%; padding: 12px; border: 1px solid #ccc; border-radius: 6px; font-size: 1rem; }
button { width: 100%; padding: 15px; border: none; border-radius: 6px; font-size: 1.1rem; font-weight: bold; cursor: pointer; transition: background 0.3s ease; }
.btn-primary { background-color: #111; color: white; }
.btn-primary:hover { background-color: #333; }
.btn-success { background-color: #007bff; color: white; margin-top: 15px; }
.btn-success:hover { background-color: #0056b3; }

/* KEEP RESULTS SECTION STYLES */
.hidden { display: none !important; }
#result-section { margin-top: 30px; padding-top: 30px; border-top: 2px dashed #eee; text-align: center; }
#price-result { font-size: 2.5rem; color: #d4af37; margin: 10px 0; font-weight: 800; }
.hook-text { font-weight: bold; margin-bottom: 20px; }

/* KEEP FOOTER STYLES */
.site-footer { background-color: #111; color: #f4f7f6; padding: 50px 0 20px; margin-top: 60px; border-top: 5px solid #d4af37; }
.footer-content { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-logo { max-height: 60px; margin-bottom: 15px; }
.footer-brand p { font-size: 0.9rem; color: #aaa; }
.footer-links h4 { color: white; margin-bottom: 15px; font-size: 1.1rem; }
.footer-links a { display: block; color: #aaa; text-decoration: none; margin-bottom: 10px; font-size: 0.9rem; transition: color 0.3s; }
.footer-links a:hover { color: #d4af37; }
.footer-bottom { text-align: center; border-top: 1px solid #333; padding-top: 20px; font-size: 0.8rem; color: #777; }

/* =========================================
   NEW PREMIUM "OILY BLACK" MARKETPLACE STYLES
========================================= */
.premium-bg {
    background: radial-gradient(circle at top right, #1a1a10, #050505);
    padding: 80px 0;
    min-height: 80vh;
}
.glass-card {
    background: linear-gradient(145deg, rgba(20, 20, 20, 0.9), rgba(10, 10, 10, 0.9));
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-top: 3px solid #d4af37;
    border-radius: 24px;
    padding: 45px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
}
.gold-text { color: #d4af37; font-weight: 800; }
.btn-gold { background: #d4af37; color: #000; font-weight: 700; border: none; border-radius: 12px; cursor: pointer; transition: 0.3s; }
.btn-gold:hover { background: #fff; transform: translateY(-2px); }

/* MOBILE RESPONSIVENESS */
@media (max-width: 850px) {
    .main-nav, .btn-login { display: none; }
    .menu-toggle { display: flex; }
    .hero h2 { font-size: 1.8rem; }
    .footer-content { grid-template-columns: 1fr; text-align: center; gap: 30px; }
    .footer-logo { margin: 0 auto 15px auto; display: block; }
}