* { margin: 0; padding: 0; box-sizing: border-box; }
        :root {
            --bg-body: #eef2f8;
            --glass-bg: rgba(255,255,255,0.85);
            --glass-border: rgba(255,255,255,0.5);
            --text-primary: #0f172a;
            --text-secondary: #334155;
            --card-bg: rgba(255,255,255,0.8);
            --navbar-bg: rgba(255,255,255,0.9);
            --footer-bg: #0f172a;
            --btn-bg: #1e6b8f;
            --btn-hover: #2d7f9e;
            --danger: #e74c3c;
            --success: #27ae60;
        }
        body.dark {
            --bg-body: #121826;
            --glass-bg: rgba(30,35,48,0.85);
            --glass-border: rgba(255,255,255,0.15);
            --text-primary: #f1f5f9;
            --text-secondary: #cbd5e1;
            --card-bg: rgba(40,45,60,0.85);
            --navbar-bg: rgba(20,25,38,0.9);
            --footer-bg: #0a0f1a;
            --btn-bg: #2d7f9e;
            --btn-hover: #3b9bc2;
        }
        body { font-family: system-ui, 'Segoe UI', sans-serif; background: var(--bg-body); color: var(--text-primary); transition: background 0.2s; }
        
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(-10px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        .navbar {
            background: var(--navbar-bg);
            backdrop-filter: blur(12px);
            position: sticky;
            top: 0;
            border-bottom: 1px solid var(--glass-border);
            padding: 0.5rem 1rem;
            z-index: 100;
        }
        .nav-container {
            max-width: 1280px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .logo h2 {
            font-size: 1.3rem;
            font-weight: 800;
            background: linear-gradient(135deg, #1a4a6e, #2563eb);
            background-clip: text;
            -webkit-background-clip: text;
            color: transparent;
        }
        .nav-links {
            display: flex;
            gap: 1.2rem;
            list-style: none;
            align-items: center;
        }
        .nav-links a {
            text-decoration: none;
            color: var(--text-primary);
            font-weight: 500;
            font-size: 0.9rem;
            transition: color 0.2s;
        }
        .nav-links a:hover { color: var(--btn-bg); }
        .dark-mode-toggle {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: 2rem;
            padding: 0.2rem 0.7rem;
            cursor: pointer;
            font-size: 0.8rem;
        }
        .menu-toggle {
            display: none;
            font-size: 1.5rem;
            background: none;
            border: none;
            cursor: pointer;
            color: var(--text-primary);
        }
        .hero {
            text-align: center;
            padding: 2rem 1rem;
            background: linear-gradient(135deg, #0b2b40, #1a4a6e);
            color: white;
        }
        .hero h1 { font-size: 1.7rem; }
        .container { max-width: 700px; margin: 2rem auto; padding: 0 1rem; }
        .card {
            background: var(--card-bg);
            border-radius: 1.5rem;
            padding: 1.5rem;
            border: 1px solid var(--glass-border);
            backdrop-filter: blur(8px);
            animation: fadeIn 0.3s ease-out;
        }
        .form-group { margin-bottom: 1rem; }
        label {
            display: block;
            font-weight: 600;
            margin-bottom: 0.3rem;
            color: var(--btn-bg);
        }
        input, select, textarea {
            width: 100%;
            padding: 0.7rem;
            border-radius: 0.8rem;
            border: 1px solid var(--glass-border);
            background: var(--glass-bg);
            color: var(--text-primary);
            transition: border 0.2s;
        }
        input:focus, select:focus, textarea:focus { outline: none; border-color: var(--btn-bg); }
        button {
            background: var(--btn-bg);
            color: white;
            border: none;
            padding: 0.6rem 1.2rem;
            border-radius: 2rem;
            cursor: pointer;
            width: 100%;
            font-size: 1rem;
            transition: transform 0.1s, background 0.2s;
        }
        button:hover { background: var(--btn-hover); }
        button:active { transform: scale(0.98); }
        .success {
            background: #22c55e20;
            color: #166534;
            padding: 0.8rem;
            border-radius: 0.8rem;
            margin-bottom: 1rem;
            text-align: center;
            border-right: 4px solid #22c55e;
            animation: pulse 0.3s ease-out;
        }
        .error {
            background: #ef444420;
            color: #991b1b;
            padding: 0.8rem;
            border-radius: 0.8rem;
            margin-bottom: 1rem;
            text-align: center;
            border-right: 4px solid #ef4444;
            animation: pulse 0.3s ease-out;
        }
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.02); }
            100% { transform: scale(1); }
        }
        .back-link {
            text-align: center;
            margin-top: 1rem;
        }
        .back-link a {
            color: var(--btn-bg);
            text-decoration: none;
        }
        footer {
            background: var(--footer-bg);
            padding: 1.5rem 1rem;
            margin-top: 2rem;
            text-align: center;
            color: #94a3b8;
            font-size: 0.7rem;
        }
        @media (max-width: 850px) {
            .menu-toggle { display: block; }
            .nav-links { display: none; width: 100%; flex-direction: column; padding: 0.8rem 0; gap: 0.5rem; text-align: center; }
            .nav-links.show { display: flex; }
            .hero h1 { font-size: 1.3rem; }
            .container { margin: 1rem auto; }
            .card { padding: 1rem; }
        }
/* Global dark mode fixes */
body.dark, body.dark * { transition: background-color .2s,color .2s,border-color .2s; }
body.dark .glass-card, body.dark .card, body.dark .feature-card, body.dark .contact-form, body.dark .info-item, body.dark .hero, body.dark .content-section { background: rgba(30,41,59,.92) !important; color: #f8fafc !important; border-color:#475569 !important; }
body.dark a, body.dark p, body.dark h1, body.dark h2, body.dark h3, body.dark h4, body.dark li, body.dark span, body.dark label { color:#f8fafc !important; }