:root {
    /* Corporate Color Palette */
    --navy-dark: #020617;
    --navy-light: #0f172a;
    --navy-muted: #1e293b;
    
    --gold: #d4af37;
    --gold-light: #f3e5ab;
    --gold-dark: #b8972e;
    
    --text-white: #f8fafc;
    --text-gray: #94a3b8;
    
    --font-serif: 'Playfair Display', serif;
    --font-sans: 'Inter', sans-serif;
    
    --shadow-premium: 0 10px 30px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.05) inset;
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--navy-dark);
    /* Soft dark gradient background for the whole page */
    background: radial-gradient(circle at center, #0f172a 0%, #020617 100%);
    color: var(--text-white);
    display: flex; justify-content: center; align-items: center;
    min-height: 100vh;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5 { font-family: var(--font-serif); font-weight: 400; color: #fff;}
h6 { font-family: var(--font-sans); font-weight: 600; text-transform: uppercase; letter-spacing: 0.15em; color: var(--gold); margin-bottom: 1rem;}

a { text-decoration: none; color: inherit; }

/* Canvas & Glowing Background Orbs */
.presentation-canvas {
    width: 100%; max-width: 1400px; height: 860px;
    background: rgba(15, 23, 42, 0.4);
    backdrop-filter: blur(20px);
    border-radius: 24px;
    border: 1px solid rgba(212, 175, 55, 0.2); /* Subtle gold border */
    box-shadow: 0 40px 80px rgba(0,0,0,0.8);
    position: relative; 
    display: flex; flex-direction: column;
    padding: 2.5rem;
    overflow: hidden;
}

.glow-orb { position: absolute; border-radius: 50%; filter: blur(100px); opacity: 0.15; z-index: 0; pointer-events: none;}
.glow-orb.top-right { width: 500px; height: 500px; background: var(--gold); top: -100px; right: -100px; }
.glow-orb.bottom-left { width: 600px; height: 600px; background: #3b82f6; bottom: -100px; left: -100px; }

/* Presentation Header */
.presentation-header {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: 3rem; position: relative; z-index: 10;
}
.brand-logo { display: flex; align-items: center; gap: 0.8rem; }
.logo-mark { background: var(--gold); color: var(--navy-dark); font-family: var(--font-serif); font-weight: 700; font-size: 1.2rem; padding: 0.3rem 0.6rem; letter-spacing: 1px;}
.brand-logo span { font-family: var(--font-serif); font-size: 1.2rem; letter-spacing: 0.5px;}

.nav-links { display: flex; gap: 2.5rem; }
.nav-links span { font-size: 0.85rem; font-weight: 500; color: var(--text-gray);}
.nav-links span.active { color: #fff; font-weight: 600; border-bottom: 1px solid var(--gold); padding-bottom: 0.2rem;}

.btn-gold {
    background: transparent; border: 1px solid var(--gold); color: var(--gold);
    padding: 0.6rem 1.5rem; border-radius: 4px; font-family: var(--font-sans); font-size: 0.85rem;
    font-weight: 600; cursor: pointer; transition: all 0.3s;
}

/* Rigid Corporate Bento Grid */
.corporate-bento {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: 350px 280px;
    gap: 2rem;
    position: relative; z-index: 10;
}

/* Base Card Style */
.corp-card {
    background: rgba(2, 6, 23, 0.7);
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: 16px;
    box-shadow: var(--shadow-premium);
    overflow: hidden;
    position: relative;
    padding: 2.5rem;
}

/* 1. Hero Card */
.hero-card { grid-column: 1 / 3; grid-row: 1 / 2; padding: 0; display: flex; align-items: center;}
.hero-card .bg-img { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; z-index: 1;}
.hero-card .overlay { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: linear-gradient(to right, rgba(2,6,23,0.95) 0%, rgba(2,6,23,0.6) 60%, transparent 100%); z-index: 2;}
.hero-content { position: relative; z-index: 3; padding: 3rem;}
.hero-content h5 { font-family: var(--font-sans); font-size: 0.85rem; letter-spacing: 0.2em; color: var(--gold); margin-bottom: 1.2rem;}
.hero-content h1 { font-size: 4rem; line-height: 1.1; color: #fff; text-shadow: 0 4px 20px rgba(0,0,0,0.8);}

/* 2. About Card */
.about-card { grid-column: 3 / 4; grid-row: 1 / 2; display: flex; flex-direction: column; justify-content: center;}
.about-card h3 { font-size: 1.8rem; line-height: 1.3; margin-bottom: 1.5rem;}
.about-card p { color: var(--text-gray); font-size: 0.95rem; margin-bottom: auto; line-height: 1.7;}
.link-arrow { font-size: 0.85rem; font-weight: 600; color: var(--gold); letter-spacing: 0.05em; margin-top: 1.5rem; display: inline-block;}

/* 3. Stats Card */
.stats-card { grid-column: 1 / 2; grid-row: 2 / 3; display: flex; align-items: center; justify-content: center;}
.stat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem;}
.stat { display: flex; flex-direction: column;}
.stat h2 { font-size: 2.2rem; color: var(--gold); margin-bottom: 0.3rem;}
.stat span { font-size: 0.75rem; color: var(--text-gray); text-transform: uppercase; letter-spacing: 0.05em; font-weight: 600;}

/* 4. Expertise Card */
.expertise-card { grid-column: 2 / 4; grid-row: 2 / 3; display: flex; gap: 2rem; align-items: center; padding: 2rem;}
.exp-header { min-width: 180px; }
.exp-header h3 { font-size: 1.8rem; line-height: 1.2;}
.exp-list { display: flex; gap: 1rem; flex: 1; height: 100%;}
.exp-item { flex: 1; border-radius: 8px; overflow: hidden; position: relative; border: 1px solid rgba(255,255,255,0.05);}
.exp-item img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(80%); transition: 0.3s;}
.exp-item:hover img { filter: grayscale(0%); transform: scale(1.05);}
.exp-overlay { position: absolute; bottom: 0; left: 0; width: 100%; padding: 1rem; background: linear-gradient(to top, rgba(0,0,0,0.9), transparent); display: flex; align-items: flex-end;}
.exp-overlay b { font-family: var(--font-serif); font-weight: 400; font-size: 1.1rem; color: #fff;}