:root {
    --primary: #2563EB; /* Electric Blue */
    --steel: #94A3B8; /* Industrial Steel */
    --slate: #0F172A; /* Deep Engineering Slate */
    --text-ivory: #F8FAFC;
    --font-main: 'Space Grotesk', sans-serif;
    --font-heading: 'Syncopate', sans-serif;
}

* { margin:0; padding:0; box-sizing:border-box; }
body { background: white; color: var(--slate); font-family: var(--font-main); overflow-x: hidden; line-height: 1.6; }

.container { max-width: 1400px; margin: 0 auto; padding: 0 4rem; }
.section-pad { padding: 10rem 0; }

/* NAV */
#prestige-nav { position: fixed; width:100%; top:0; z-index:1000; padding: 2.5rem 0; transition: all 0.4s; }
.nav-box { display: flex; justify-content: space-between; align-items: center; }
.logo { font-family: var(--font-heading); font-size: 1.8rem; color: var(--slate); text-decoration: none; font-weight: 700; letter-spacing: -2px; }
.logo span { color: var(--primary); }
.nav-links a { color: var(--slate); text-decoration: none; font-weight: 700; font-size: 0.75rem; text-transform: uppercase; margin-left: 3.5rem; letter-spacing: 2px; }
.nav-cta { background: var(--primary); color: white !important; padding: 0.8rem 2rem; border-radius: 4px; box-shadow: 0 10px 30px rgba(37,99,235,0.3); }

/* HERO (Zero-Shade) */
.hero-sec { height: 100vh; display: flex; align-items: center; background: #F1F5F9; border-bottom: 2px solid #ddd; }
.hero-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 6rem; align-items: center; }
.hero-content h1 { font-family: var(--font-heading); font-size: 5rem; line-height: 1.1; margin-bottom: 2.5rem; color: var(--slate); text-transform: uppercase; letter-spacing: -3px; }
.hero-content p { font-size: 1.25rem; color: #475569; max-width: 550px; background: white; padding: 2.5rem; border-left: 10px solid var(--primary); }
.hero-img { height: 80vh; background: var(--slate); overflow: hidden; border-radius: 4px; border-right: 15px solid var(--primary); }
.hero-img img { width: 100%; height: 100%; object-fit: cover; opacity: 0.8; }

/* PRODUCTION CARDS */
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 3rem; }
.mfg-card { background: white; padding: 4.5rem; border: 1px solid #E2E8F0; transition: 0.4s; position: relative; overflow: hidden; }
.mfg-card:hover { transform: translateY(-10px); border-color: var(--primary); }
.mfg-card::after { content: ''; position: absolute; bottom:0; right:0; width:60px; height:60px; background: var(--primary); clip-path: polygon(100% 0, 0% 100%, 100% 100%); opacity: 0.1; }
.mfg-icon { font-size: 3.5rem; margin-bottom: 2rem; display: block; }
.mfg-card h3 { font-family: var(--font-heading); font-size: 1.5rem; margin-bottom: 1.5rem; line-height: 1.2; text-transform: uppercase; }

/* MACHINERY GRID */
.infra-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.infra-card { background: var(--slate); color: white; padding: 4rem 3rem; border-radius: 4px; border-top: 5px solid var(--steel); transition: 0.3s; }
.infra-card:hover { border-top-color: var(--primary); }
.infra-card h4 { font-family: var(--font-heading); font-size: 1.2rem; margin-bottom: 1.5rem; color: var(--steel); text-transform: uppercase; }
.infra-specs { list-style: none; margin-top: 2rem; }
.infra-specs li { margin-bottom: 1rem; display: flex; justify-content: space-between; border-bottom: 1px solid rgba(255,255,255,0.05); padding-bottom: 0.5rem; font-size: 0.85rem; }
.infra-specs li span { font-weight: 700; color: var(--primary); }

/* PROMINENT CTA */
.prominent-cta { background: var(--primary); color: white; padding: 10rem 0; text-align: center; }
.prominent-cta h2 { font-family: var(--font-heading); font-size: 4rem; line-height: 1.1; margin-bottom: 2.5rem; text-transform: uppercase; letter-spacing: -3px; }
.enquiry-form { max-width: 1000px; margin: 4rem auto 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; }
.enquiry-form input, select { padding: 1.5rem; background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.2); color: white; font-weight: 700; border-radius: 4px; width: 100%; }
.enquiry-form button { grid-column: span 3; background: var(--slate); color: white; padding: 1.6rem; border: none; font-weight: 700; text-transform: uppercase; font-size: 1.2rem; cursor: pointer; border-radius: 4px; transition: 0.3s; }
.enquiry-form button:hover { background: #000; }

/* AI CONCIERGE (Engineering Edition) */
#concierge-trigger { position: fixed; bottom: 35px; right: 35px; width: 65px; height: 65px; background: var(--primary); border-radius: 4px; display: flex; align-items: center; justify-content: center; z-index: 2000; box-shadow: 0 15px 40px rgba(37,99,235,0.4); color: white; cursor: pointer; }
#concierge-window { position: fixed; bottom: 120px; right: 35px; width: 400px; background: white; border-radius: 4px; box-shadow: 0 30px 100px rgba(0,0,0,0.3); opacity: 0; pointer-events: none; transition: 0.4s; transform: translateY(20px); z-index: 2000; border: 1px solid #E2E8F0; }
#concierge-window.active { opacity: 1; pointer-events: all; transform: translateY(0); }
.concierge-header { background: var(--slate); color: white; padding: 2.5rem; display: flex; align-items: center; gap: 1.5rem; border-bottom: 5px solid var(--primary); }
.concierge-body { height: 440px; background: #F8FAFC; padding: 2.5rem; overflow-y: auto; }
.chat-item { margin-bottom: 2rem; padding: 1.5rem; border-radius: 4px; font-size: 1rem; line-height: 1.5; }
.ig-msg { background: white; border-right: 6px solid var(--primary); color: var(--slate); font-weight: 700; }
.user-msg { background: var(--slate); color: white; margin-left: 2rem; }

@media (max-width: 1024px) {
    .container { padding: 0 2rem; }
    .hero-grid, .card-grid, .infra-grid, .enquiry-form { grid-template-columns: 1fr; }
    .hero-content h1 { font-size: 3rem; }
    .enquiry-form button { grid-column: span 1; }
}