:root {
            --dark-blue: #1F2A44;
            --paper: #F9F6F1;
            --accent: #FF8A3D;
            --muted-grey: #D9D9D9;
            --text: #222222;
            --white: #FFFFFF;
            --font-heading: 'Playfair Display', serif;
            --font-body: 'Inter', sans-serif;
            --transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
        }

        /* RESET */
        * { margin: 0; padding: 0; box-sizing: border-box; }
        body { 
            font-family: var(--font-body); 
            background-color: var(--paper); 
            color: var(--text);
            line-height: 1.7;
            overflow-x: hidden;
        }

        /* TYPOGRAPHY */
        h1, h2, h3, .editorial-title { font-family: var(--font-heading); font-weight: 900; color: var(--dark-blue); }
        .serif-italic { font-family: var(--font-heading); font-style: italic; font-weight: 400; }
        p { font-weight: 400; opacity: 0.9; }
        .label { text-transform: uppercase; letter-spacing: 2px; font-size: 0.75rem; font-weight: 700; color: var(--accent); }

        /* LAYOUT STRUCTURE */
        .app-wrapper { display: flex; min-height: 100vh; }
        
        /* SIDEBAR NAVIGATION */
        .sidebar {
            width: 280px;
            background: var(--dark-blue);
            color: var(--white);
            position: fixed;
            height: 100vh;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            padding: 50px 40px;
            z-index: 1000;
        }

        .logo { font-family: var(--font-heading); font-size: 1.5rem; font-weight: 900; line-height: 1; border-bottom: 2px solid var(--accent); padding-bottom: 10px; cursor: pointer; }
        
        .nav-list { list-style: none; margin-top: 60px; }
        .nav-list li { margin-bottom: 25px; }
        .nav-list a { 
            color: rgba(255,255,255,0.6); 
            text-decoration: none; 
            font-weight: 600; 
            font-size: 1.1rem; 
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav-list a:hover, .nav-list a.active { color: var(--white); transform: translateX(8px); }
        .nav-list a.active::before { content: ''; width: 6px; height: 6px; background: var(--accent); border-radius: 50%; }

        .sidebar-footer { display: flex; gap: 20px; opacity: 0.5; }
        
        /* MAIN CONTENT AREA */
        .main-content {
            flex: 1;
            margin-left: 280px;
            width: calc(100% - 280px);
        }

        /* PAGE MANAGEMENT */
        .page { display: none; min-height: 100vh; animation: pageFade 0.8s ease; }
        .page.active { display: block; }
        @keyframes pageFade { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

        /* HERO SECTION */
        .hero {
            display: flex;
            height: 90vh;
            align-items: center;
            background: var(--white);
            position: relative;
            overflow: hidden;
        }
        .hero-text { width: 45%; padding: 0 80px; z-index: 2; }
        .hero-text h1 { font-size: 4.5rem; line-height: 1; margin-bottom: 30px; }
        .hero-img { 
            width: 55%; 
            height: 100%; 
            background: url('https://images.unsplash.com/photo-1524178232363-1fb2b075b655?auto=format&fit=crop&q=80&w=1400') center/cover;
            position: relative;
            animation: zoomBg 20s infinite alternate;
        }
        @keyframes zoomBg { from { scale: 1; } to { scale: 1.1; } }
        
        .hero-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to right, var(--white), transparent);
        }

        /* ASYMMETRICAL BLOCKS */
        .editorial-section { padding: 120px 80px; }
        .asym-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 100px; align-items: center; margin-bottom: 120px; }
        .asym-grid.reverse { direction: rtl; }
        .asym-grid.reverse .text-box { direction: ltr; }
        
        .img-wrap { position: relative; }
        .img-wrap img { width: 100%; border-radius: 4px; filter: grayscale(20%); transition: var(--transition); }
        .img-wrap::before {
            content: '';
            position: absolute;
            top: 20px; left: -20px;
            width: 100%; height: 100%;
            border: 1px solid var(--muted-grey);
            z-index: -1;
        }

        /* KNOWLEDGE STRIP */
        .knowledge-strip {
            background: var(--dark-blue);
            color: var(--white);
            padding: 100px 0;
            overflow: hidden;
        }
        .marquee-wrapper {
            display: flex;
            gap: 40px;
            margin-top: 60px;
            animation: marquee 40s linear infinite;
            width: max-content;
        }
        @keyframes marquee { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }
        
        .k-card {
            width: 350px;
            background: rgba(255,255,255,0.05);
            padding: 40px;
            border-left: 4px solid var(--accent);
            cursor: pointer;
            transition: 0.3s;
        }
        .k-card:hover { background: rgba(255,255,255,0.1); transform: translateY(-10px); }

        /* MENTOR CARDS */
        .mentor-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 40px;
            margin-top: 60px;
        }
        .mentor-card {
            background: var(--white);
            padding: 20px;
            border-radius: 0;
            box-shadow: 10px 10px 0 var(--muted-grey);
            transition: var(--transition);
        }
        .mentor-card:hover { transform: translate(-5px, -5px); box-shadow: 15px 15px 0 var(--accent); }
        .mentor-card img { width: 100%; height: 400px; object-fit: cover; filter: sepia(30%); margin-bottom: 20px; }

        /* BUTTONS */
        .btn {
            padding: 15px 35px;
            font-family: var(--font-body);
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1px;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 0.85rem;
        }
        .btn-accent { background: var(--accent); color: white; }
        .btn-accent:hover { letter-spacing: 2px; background: #e67a2e; }
        .btn-outline { background: transparent; border: 1px solid var(--white); color: var(--white); }
        .btn-outline:hover { background: var(--dark-blue); color: white; }

        /* MODALS & QUICK VIEW */
        .modal {
            position: fixed;
            inset: 0;
            background: rgba(31, 42, 68, 0.95);
            z-index: 2000;
            display: none;
            align-items: center;
            justify-content: center;
            padding: 40px;
        }
        .modal-content {
            background: var(--paper);
            max-width: 1000px;
            width: 100%;
            height: 80vh;
            display: flex;
            position: relative;
            box-shadow: 0 40px 100px rgba(0,0,0,0.5);
        }
        .modal-img { width: 40%; background: #ccc; }
        .modal-body { width: 60%; padding: 60px; overflow-y: auto; }
        .close-modal { position: absolute; top: 20px; right: 20px; cursor: pointer; color: var(--dark-blue); }

        /* FOOTER */
        footer { background: var(--dark-blue); color: var(--white); padding: 100px 80px 40px; }
        .footer-top { display: grid; grid-template-columns: 2fr 1fr 1fr 2fr; gap: 80px; margin-bottom: 80px; }
        .footer-col h4 { margin-bottom: 30px; border-bottom: 1px solid rgba(255,255,255,0.1); padding-bottom: 10px; }
        .footer-col ul { list-style: none; }
        .footer-col li { margin-bottom: 15px; opacity: 0.6; cursor: pointer; }
        .footer-col li:hover { opacity: 1; color: var(--accent); }
        
        .newsletter-input {
            background: rgba(255,255,255,0.05);
            border: 1px solid rgba(255,255,255,0.1);
            padding: 15px;
            color: white;
            width: 100%;
            margin-bottom: 15px;
        }

        .footer-bottom { 
            border-top: 1px solid rgba(255,255,255,0.05); 
            padding-top: 40px; 
            text-align: center; 
            font-size: 0.8rem; 
            opacity: 0.4; 
        }

        /* MOBILE OVERRIDES */
        @media (max-width: 400px) {
            .app-wrapper { flex-direction: column; }
            .sidebar { 
                width: 100%; height: auto; position: relative; 
                flex-direction: row; padding: 20px; 
            }
            .nav-list { display: none; } /* Mobile menu would go here */
            .main-content { margin-left: 0; width: 100%; }
            .hero { flex-direction: column; height: auto; }
            .hero-text, .hero-img { width: 100%; padding: 60px 40px; }
            .asym-grid { grid-template-columns: 1fr; gap: 40px; }
        }

        /* AUTH FORMS */
        .auth-card {
            background: white;
            padding: 50px;
            width: 450px;
            box-shadow: 20px 20px 0 var(--dark-blue);
        }
        .form-field { margin-bottom: 25px; }
        .form-field label { display: block; margin-bottom: 10px; font-weight: 700; font-size: 0.8rem; text-transform: uppercase; }
        .form-field input { width: 100%; padding: 15px; border: 1px solid var(--muted-grey); outline: none; }
        .form-field input:focus { border-color: var(--accent); }

        .mentor-modal{
    position:fixed;
    top:0;
    left:0;
    width:100%;
    height:100%;
    background:rgba(0,0,0,0.6);
    display:none;
    align-items:center;
    justify-content:center;
    z-index:999;
}

.mentor-modal-content{
    background:white;
    padding:40px;
    border-radius:10px;
    width:400px;
    max-width:90%;
}

.mentor-modal-content input,
.mentor-modal-content textarea{
    width:100%;
    padding:12px;
    margin:10px 0;
    border:1px solid #ccc;
    border-radius:6px;
}

.close-btn{
    float:right;
    cursor:pointer;
    font-size:20px;
}
/* KNOWLEDGE HUB HEADER */

.content-header{
    height:380px;
    background-size:cover;
    background-position:center;
    display:flex;
    align-items:center;
    justify-content:center;
    position:relative;
}

.content-header::after{
    content:'';
    position:absolute;
    inset:0;
    background:rgba(31,42,68,0.65);
}

.content-header h1{
    position:relative;
    color:white;
    font-size:4rem;
    text-align:center;
    z-index:2;
}


/* CONTAINER */

.container{
    max-width:1100px;
    margin:auto;
    padding:80px 40px;
}


/* ARTICLE BODY */

.article-body h2{
    font-size:2.2rem;
    margin-bottom:20px;
}

.article-body p{
    font-size:1.05rem;
    margin-bottom:18px;
    line-height:1.8;
}


/* RESOURCE CARDS */

.glass-card{
    background:white;
    padding:30px;
    border-left:4px solid var(--accent);
    box-shadow:10px 10px 0 var(--muted-grey);
    transition:var(--transition);
}

.glass-card:hover{
    transform:translate(-6px,-6px);
    box-shadow:14px 14px 0 var(--accent);
}

.glass-card h3{
    font-size:1.4rem;
    margin:12px 0;
}

.glass-card p{
    font-size:0.95rem;
    opacity:0.85;
    margin-bottom:20px;
}


/* STUDY TOOLS LIST */

.article-body ul{
    margin-top:20px;
    padding-left:20px;
}

.article-body ul li{
    margin-bottom:12px;
    font-size:1rem;
}


/* CTA BLOCK */

.article-body .cta-box{
    margin-top:70px;
    padding:50px;
    background:var(--dark-blue);
    color:white;
    text-align:center;
}

.article-body .cta-box h3{
    font-size:2rem;
    margin-bottom:15px;
}

.article-body .cta-box p{
    opacity:0.85;
    margin-bottom:25px;
}