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

        body {
            font-family: 'Inter', sans-serif;
            background-color: #f9fafc;
            color: #1f2937;
            scroll-behavior: smooth;
            line-height: 1.5;
        }

        /* scroll offset for fixed header */
        html {
            scroll-padding-top: 85px;
        }

        /* HEADER & NAVIGATION */
        header {
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(4px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.03), 0 1px 2px rgba(0, 0, 0, 0.05);
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
            transition: all 0.2s;
        }

        .nav-container {
            max-width: 1280px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 0.9rem 2rem;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .logo {
            font-size: 1.7rem;
            font-weight: 800;
            color: #0f2b4d;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: -0.3px;
        }

        .logo i {
            color: #2c7da0;
            font-size: 1.8rem;
        }

        .nav-links {
            display: flex;
            list-style: none;
            gap: 2rem;
            align-items: center;
            flex-wrap: wrap;
        }

        .nav-links a {
            text-decoration: none;
            font-weight: 600;
            color: #2c3e50;
            transition: all 0.2s;
            font-size: 0.95rem;
        }

        .nav-links a:hover {
            color: #1e4a76;
        }

        /* LOGIN BUTTON & DROPDOWN (MODERN) */
        .login-dropdown-wrapper {
            position: relative;
        }

        .login-toggle-btn {
            background: linear-gradient(105deg, #1f4870, #143450);
            color: white !important;
            padding: 8px 22px;
            border-radius: 40px;
            cursor: pointer;
            transition: all 0.25s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
            border: none;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.02);
        }

        .login-toggle-btn:hover {
            background: #0f3b5c;
            transform: translateY(-1px);
            box-shadow: 0 10px 18px -8px rgba(0, 0, 0, 0.1);
        }

        .dropdown-menu {
            display: none;
            position: absolute;
            right: 0;
            top: 54px;
            background: #ffffff;
            width: 360px;
            border-radius: 24px;
            box-shadow: 0 25px 40px -12px rgba(0, 0, 0, 0.25);
            padding: 1.6rem;
            border: 1px solid rgba(203, 213, 225, 0.5);
            backdrop-filter: blur(2px);
            z-index: 1100;
            transition: all 0.2s;
        }

        .dropdown-menu h3 {
            font-size: 1.35rem;
            font-weight: 700;
            margin-bottom: 1.2rem;
            color: #0b2b44;
            border-left: 4px solid #2c7da0;
            padding-left: 12px;
        }

        .form-group {
            margin-bottom: 1.2rem;
        }

        .form-group label {
            display: block;
            font-size: 0.8rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.3px;
            color: #4b5563;
            margin-bottom: 6px;
        }

        .form-group input,
        .form-group select {
            width: 100%;
            padding: 12px 14px;
            border: 1.5px solid #e2edf2;
            border-radius: 18px;
            font-size: 0.9rem;
            transition: 0.2s;
            background: #fefefe;
        }

        .form-group input:focus,
        .form-group select:focus {
            outline: none;
            border-color: #2c7da0;
            box-shadow: 0 0 0 3px rgba(44, 125, 160, 0.15);
        }

        .submit-btn {
            width: 100%;
            background: #0f2b4d;
            color: white;
            border: none;
            padding: 12px;
            border-radius: 40px;
            font-weight: 700;
            font-size: 0.9rem;
            cursor: pointer;
            transition: 0.2s;
            margin-top: 6px;
        }

        .submit-btn:hover {
            background: #1f4d6e;
            transform: scale(0.98);
        }

        /* HERO SECTION */
        .hero {
            margin-top: 80px;
            background: linear-gradient(125deg, #102b3f 0%, #1c4e6e 100%);
            color: white;
            padding: 5rem 2rem;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: "";
            position: absolute;
            top: -30%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, rgba(255,255,255,0) 70%);
            border-radius: 50%;
        }

        .hero-content {
            max-width: 800px;
            margin: 0 auto;
            position: relative;
        }

        .hero h1 {
            font-size: 3.3rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 1.2rem;
        }

        .hero p {
            font-size: 1.2rem;
            opacity: 0.92;
            margin-bottom: 2rem;
        }

        .cta-btn {
            background: #ffb347;
            color: #1f2f3e;
            padding: 12px 34px;
            border-radius: 40px;
            text-decoration: none;
            font-weight: 700;
            display: inline-block;
            transition: 0.2s;
            box-shadow: 0 8px 18px rgba(0,0,0,0.15);
        }

        .cta-btn:hover {
            background: #ff9f1c;
            transform: translateY(-3px);
        }

        /* STATS SECTION */
        .stats {
            background: #ffffff;
            padding: 3rem 1.5rem;
            border-bottom: 1px solid #eef2f6;
        }

        .stats-container {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            justify-content: space-around;
            flex-wrap: wrap;
            gap: 2rem;
            text-align: center;
        }

        .stat-item h2 {
            font-size: 2.8rem;
            color: #1e4a76;
            font-weight: 800;
        }

        .stat-item p {
            font-weight: 500;
            color: #4a627a;
        }

        /* FEATURES SECTION */
        .features {
            max-width: 1280px;
            margin: 5rem auto;
            padding: 0 1.8rem;
        }

        .section-title {
            text-align: center;
            font-size: 2.2rem;
            font-weight: 700;
            color: #0f2b4d;
            margin-bottom: 3rem;
            letter-spacing: -0.3px;
        }

        .grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
        }

        .card {
            background: white;
            border-radius: 28px;
            padding: 2rem 1.5rem;
            transition: all 0.25s ease;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.02), 0 1px 2px rgba(0, 0, 0, 0.03);
            border: 1px solid #eef2f8;
            text-align: center;
        }

        .card:hover {
            transform: translateY(-7px);
            box-shadow: 0 20px 30px -12px rgba(0, 0, 0, 0.08);
            border-color: #cbdde9;
        }

        .card i {
            font-size: 2.8rem;
            color: #2c7da0;
            margin-bottom: 1.3rem;
        }

        .card h3 {
            font-size: 1.5rem;
            margin-bottom: 0.7rem;
            font-weight: 700;
        }

        .card p {
            color: #566573;
            font-size: 0.95rem;
        }

        /* ABOUT & CONTACT SECTIONS */
        .about-section, .contact-section {
            max-width: 1200px;
            margin: 4rem auto;
            padding: 2rem 1.8rem;
            background: #ffffff;
            border-radius: 36px;
            box-shadow: 0 12px 28px -8px rgba(0, 0, 0, 0.04);
        }

        .about-section h2, .contact-section h2 {
            font-size: 1.9rem;
            font-weight: 700;
            color: #0f2b4d;
            margin-bottom: 1.2rem;
            border-left: 6px solid #2c7da0;
            padding-left: 1rem;
        }

        .about-content {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            align-items: center;
        }

        .about-text {
            flex: 2;
            font-size: 1rem;
            line-height: 1.5;
            color: #2c3e4e;
        }

        .contact-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            justify-content: space-between;
        }

        .contact-info {
            flex: 1;
            background: #f8fafc;
            padding: 1.5rem;
            border-radius: 28px;
        }

        .contact-info i {
            width: 40px;
            color: #2c7da0;
            font-size: 1.5rem;
            margin-right: 12px;
        }

        .contact-info p {
            margin: 12px 0;
            display: flex;
            align-items: center;
        }

        /* FOOTER */
        footer {
            background: #0b212f;
            color: #b9d0e0;
            padding: 2.5rem 1.5rem;
            text-align: center;
            margin-top: 3rem;
            border-top-left-radius: 28px;
            border-top-right-radius: 28px;
        }

        .footer-links {
            margin-top: 1rem;
            display: flex;
            justify-content: center;
            gap: 2rem;
            flex-wrap: wrap;
        }

        .footer-links a {
            color: #cbdde9;
            text-decoration: none;
            font-size: 0.85rem;
        }

        .footer-links a:hover {
            color: white;
        }

        @media (max-width: 720px) {
            .nav-container {
                flex-direction: column;
                align-items: center;
                gap: 0.8rem;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .dropdown-menu {
                width: 280px;
                right: -20px;
            }
            .section-title {
                font-size: 1.8rem;
            }
        }

        /* toast animation */
        .toast-msg {
            position: fixed;
            bottom: 24px;
            left: 50%;
            transform: translateX(-50%);
            background: #1f2f3e;
            color: white;
            padding: 12px 24px;
            border-radius: 60px;
            font-weight: 500;
            z-index: 1200;
            box-shadow: 0 12px 22px rgba(0,0,0,0.2);
            animation: fadeUp 0.25s ease;
        }

        @keyframes fadeUp {
            from { opacity: 0; transform: translateX(-50%) translateY(20px);}
            to { opacity: 1; transform: translateX(-50%) translateY(0);}
        }