/* CSS Variables for Theme Management */
        :root {
            --primary-blue: #0f3057;
            --secondary-blue: #168aad;
            --gold: #d4af37;
            --gold-hover: #aa8436;
            --accent-glow: rgba(212, 175, 55, 0.3);
            --bg-light: #f8f9fa;
            --bg-card-light: rgba(255, 255, 255, 0.9);
            --text-dark: #1e293b;
            --text-muted: #64748b;
            --border-light: rgba(15, 48, 87, 0.08);
            
            /* Dark Mode Variables */
            --bg-dark-base: #0f172a;
            --bg-card-dark: rgba(30, 41, 59, 0.9);
            --text-light: #f1f5f9;
            --text-muted-dark: #94a3b8;
            --border-dark: rgba(255, 255, 255, 0.08);

            --dynamic-bg: var(--bg-light);
            --dynamic-card-bg: var(--bg-card-light);
            --dynamic-text: var(--text-dark);
            --dynamic-text-muted: var(--text-muted);
            --dynamic-border: var(--border-light);
            --glass-blur: blur(16px);
            --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.12);
            
            /* Smooth Cinematic Transitions */
            --transition-smooth: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
            --transition-bounce: all 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
        }

        /* Dark Mode Override Class */
        body.dark-theme {
            --dynamic-bg: var(--bg-dark-base);
            --dynamic-card-bg: var(--bg-card-dark);
            --dynamic-text: var(--text-light);
            --dynamic-text-muted: var(--text-muted-dark);
            --dynamic-border: var(--border-dark);
            color-scheme: dark;
        }

        /* Basic Resets */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Poppins', sans-serif;
        }

        html {
            scroll-behavior: smooth;
            overflow-x: hidden;
            width: 100%;
            max-width: 100%;
        }

        body {
            background-color: var(--dynamic-bg);
            color: var(--dynamic-text);
            transition: var(--transition-smooth);
            overflow-x: hidden;
            width: 100%;
            max-width: 100%;
            line-height: 1.6;
        }

        h1, h2, h3, h4, .brand-font {
            font-family: 'Cinzel', serif;
            letter-spacing: 0.5px;
        }

        /* Loading Overlay */
        #preloader {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--primary-blue);
            z-index: 9999;
            display: flex;
            justify-content: center;
            align-items: center;
            flex-direction: column;
            transition: opacity 0.4s ease, visibility 0.4s ease;
        }
        .spinner {
            width: 50px;
            height: 50px;
            border: 5px solid rgba(255,255,255,0.1);
            border-top: 5px solid var(--gold);
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }
        .preloader-text {
            color: white;
            margin-top: 15px;
            font-family: 'Cinzel', serif;
            letter-spacing: 2px;
            font-size: 0.9rem;
        }
        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        /* Container Layouts */
        .container {
            width: 90%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 40px 0;
        }

        /* Sticky Navigation Bar */
        .navbar {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--dynamic-card-bg);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            border-bottom: 1px solid var(--dynamic-border);
            padding: 15px 5%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            box-shadow: var(--shadow-sm);
            transition: var(--transition-smooth);
        }
        .navbar.scrolled {
            padding: 10px 5%;
            box-shadow: var(--shadow-md);
        }
        .logo-area {
            display: flex;
            align-items: center;
            text-decoration: none;
            color: inherit;
        }
        .logo-icon {
            background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
            color: var(--gold);
            width: 45px;
            height: 45px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            margin-right: 12px;
            border: 2px solid var(--gold);
            font-size: 1.2rem;
            box-shadow: var(--shadow-sm);
        }
        .logo-text h1 {
            font-size: 1.2rem;
            font-weight: bold;
            color: var(--primary-blue);
            line-height: 1.2;
        }
        body.dark-theme .logo-text h1 {
            color: white;
        }
        .logo-text span {
            font-size: 0.7rem;
            display: block;
            color: var(--gold);
            letter-spacing: 1px;
            text-transform: uppercase;
            font-weight: 600;
        }
        
        /* PC Nav Links */
        .nav-links {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 25px;
        }
        .nav-links a {
            text-decoration: none;
            color: var(--dynamic-text);
            font-weight: 600;
            font-size: 0.9rem;
            transition: var(--transition-smooth);
            position: relative;
            padding: 5px 0;
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            width: 0;
            height: 2px;
            background-color: var(--gold);
            transition: var(--transition-smooth);
            transform: translateX(-50%);
        }
        .nav-links a:hover {
            color: var(--secondary-blue);
        }
        .nav-links a:hover::after {
            width: 100%;
        }
        
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 18px;
        }
        
        /* Smooth Interactive Buttons */
        .theme-toggle-btn, .profile-btn {
            background: none;
            border: none;
            color: var(--dynamic-text);
            cursor: pointer;
            font-size: 1.25rem;
            transition: var(--transition-bounce);
            padding: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-decoration: none;
        }
        .menu-btn {
            background: none;
            border: none;
            color: var(--dynamic-text);
            cursor: pointer;
            font-size: 1.25rem;
            transition: var(--transition-bounce);
            padding: 6px;
            display: none;
            align-items: center;
            justify-content: center;
        }
        .theme-toggle-btn:hover, .profile-btn:hover, .menu-btn:hover {
            color: var(--gold);
            transform: scale(1.15);
        }

        /* Language Selector Styling */
        .lang-selector {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            font-weight: bold;
        }
        .lang-link {
            text-decoration: none;
            color: var(--dynamic-text);
            opacity: 0.6;
            transition: var(--transition-smooth);
        }
        .lang-link.active, .lang-link:hover {
            color: var(--gold);
            opacity: 1;
        }
        .lang-separator {
            color: var(--dynamic-border);
        }

        /* Page Header Design */
        .page-header {
            background: linear-gradient(rgba(15, 48, 87, 0.9), rgba(15, 48, 87, 0.95)), #0f3057;
            color: white;
            padding: 60px 0;
            text-align: center;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            transition: background 0.4s ease-in-out;
        }
        .page-header h2 {
            font-family: 'Cinzel', serif;
            font-size: 2.2rem;
            margin-bottom: 10px;
        }
        .page-header p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 0.95rem;
            max-width: 600px;
            margin: 0 auto;
        }

        /* Search Filter Card Control */
        .search-card {
            background: var(--dynamic-card-bg);
            border: 1px solid var(--dynamic-border);
            border-radius: 12px;
            padding: 25px;
            margin: 40px auto;
            max-width: 600px;
            box-shadow: var(--shadow-sm);
        }
        .search-wrapper {
            position: relative;
            width: 100%;
        }
        .search-wrapper i {
            position: absolute;
            left: 15px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--dynamic-text-muted);
        }
        .search-input {
            width: 100%;
            padding: 12px 16px 12px 45px;
            border: 1px solid var(--dynamic-border);
            background: var(--dynamic-bg);
            color: var(--dynamic-text);
            border-radius: 30px;
            outline: none;
            font-size: 0.9rem;
            transition: var(--transition-smooth);
        }
        .search-input:focus {
            border-color: var(--secondary-blue);
            box-shadow: 0 0 0 3px rgba(22, 138, 173, 0.15);
        }

        /* Faculty Grid Layout */
        .teachers-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 25px;
            margin-bottom: 80px;
        }
        .teacher-card {
            background: var(--dynamic-card-bg);
            border: 1px solid var(--dynamic-border);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition-smooth);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .teacher-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--gold);
        }
        .teacher-img {
            height: 250px;
            overflow: hidden;
            position: relative;
            background: rgba(15, 48, 87, 0.05);
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .teacher-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition-smooth);
        }
        .teacher-card:hover .teacher-img img {
            transform: scale(1.06);
        }
        .teacher-info {
            padding: 20px;
            text-align: center;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .teacher-info h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--primary-blue);
            margin-bottom: 5px;
        }
        body.dark-theme .teacher-info h4 {
            color: white;
        }
        .teacher-subject {
            font-size: 0.75rem;
            color: var(--gold);
            font-weight: 700;
            margin-bottom: 10px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .teacher-qual {
            font-size: 0.75rem;
            color: var(--dynamic-text-muted);
        }

        /* Footer Layout */
        .footer {
            background: #081a30;
            color: #e2e8f0;
            padding: 80px 0 30px 0;
            font-size: 0.85rem;
            border-top: 4px solid var(--gold);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 50px;
        }
        .footer-logo h2 {
            font-size: 1.3rem;
            color: white;
            margin-bottom: 15px;
        }
        .footer-logo p {
            color: #94a3b8;
            margin-bottom: 25px;
            line-height: 1.6;
        }
        .footer-social-links {
            display: flex;
            gap: 12px;
        }
        .footer-social-links a {
            background: rgba(255, 255, 255, 0.05);
            color: white;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition-smooth);
        }
        .footer-social-links a:hover {
            background: var(--gold);
            color: var(--primary-blue);
            transform: translateY(-3px);
        }
        .footer-links-col h4 {
            font-size: 1.05rem;
            color: white;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 8px;
        }
        .footer-links-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 35px;
            height: 2px;
            background: var(--gold);
        }
        .footer-links-col ul {
            list-style: none;
        }
        .footer-links-col ul li {
            margin-bottom: 12px;
        }
        .footer-links-col ul li a {
            color: #94a3b8;
            text-decoration: none;
            transition: var(--transition-smooth);
        }
        .footer-links-col ul li a:hover {
            color: white;
            padding-left: 5px;
        }
        .footer-newsletter p {
            color: #94a3b8;
            margin-bottom: 20px;
        }
        .newsletter-form {
            display: flex;
            gap: 8px;
        }
        .newsletter-input {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            color: white;
            padding: 10px 15px;
            border-radius: 4px;
            flex-grow: 1;
            outline: none;
            font-size: 0.8rem;
        }
        .newsletter-btn {
            background: var(--gold);
            color: var(--primary-blue);
            border: none;
            padding: 10px 15px;
            border-radius: 4px;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition-smooth);
        }
        .newsletter-btn:hover {
            background: var(--gold-hover);
            color: white;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
            color: #94a3b8;
        }

        /* Scroll To Top Button */
        .scroll-top-btn {
            position: fixed;
            bottom: 30px;
            left: 30px;
            background: var(--gold);
            color: var(--primary-blue);
            width: 45px;
            height: 45px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: var(--shadow-md);
            opacity: 0;
            visibility: hidden;
            transition: var(--transition-bounce);
            z-index: 99;
            border: none;
        }
        .scroll-top-btn.show {
            opacity: 1;
            visibility: visible;
        }
        .scroll-top-btn:hover {
            background: var(--primary-blue);
            color: white;
            transform: translateY(-5px);
        }

        /* Responsive Breakpoints & Mobile Optimization */
        @media (max-width: 1024px) {
            .teachers-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            input, select, textarea, .search-input {
                font-size: 16px !important; /* Prevents auto zoom-in on mobile focus */
            }
            .navbar {
                padding: 15px 20px;
            }
            .menu-btn {
                display: flex;
            }
            .nav-links {
                position: fixed;
                top: 75px;
                left: -100%;
                width: 100%;
                height: calc(100vh - 75px);
                background: var(--dynamic-card-bg);
                backdrop-filter: var(--glass-blur);
                -webkit-backdrop-filter: var(--glass-blur);
                flex-direction: column;
                align-items: center;
                justify-content: center;
                gap: 30px;
                transition: var(--transition-smooth);
                box-shadow: var(--shadow-md);
            }
            .nav-links.active {
                left: 0;
            }
            .teachers-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 480px) {
            .teachers-grid {
                grid-template-columns: 1fr;
            }
            .container {
                width: 94%;
                padding: 30px 0;
            }
            .search-card {
                padding: 15px;
            }
            
            /* Responsive Footer Newsletter form adjustments */
            .newsletter-form {
                flex-direction: column;
                gap: 10px;
                width: 100%;
            }
            .newsletter-input, .newsletter-btn {
                width: 100%;
                text-align: center;
            }
        }