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

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: linear-gradient(135deg, #000f3f 0%, #000f3f 100%);
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
        }

        body::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(255,255,255,0.05) 1px, transparent 1px);
            background-size: 50px 50px;
            animation: float 20s linear infinite;
            z-index: 0;
        }

        @keyframes float {
            0% { transform: translate(0, 0) rotate(0deg); }
            100% { transform: translate(-50px, -50px) rotate(360deg); }
        }

        .login-container {
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(10px);
            border-radius: 20px;
            box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
            width: 100%;
            max-width: 450px;
            padding: 50px 40px;
            position: relative;
            z-index: 1;
            animation: slideUp 0.8s ease-out;
        }

        @keyframes slideUp {
            from {
                opacity: 0;
                transform: translateY(50px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .logo-section {
            text-align: center;
            margin-bottom: 40px;
        }

        .logo-section img {
            width: 80px;
            height: 80px;
            border-radius: 15px;
            margin-bottom: 20px;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
            transition: transform 0.3s ease;
        }

        .logo-section img:hover {
            transform: scale(1.05);
        }

        .brand-text {
            font-size: 32px;
            font-weight: 700;
            color: #1a1a1a;
            margin-bottom: 8px;
        }

        .brand-text .text-primary {
            background: linear-gradient(135deg, #000f3f, #5D4037);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .version-badges {
            display: flex;
            justify-content: center;
            gap: 10px;
            margin-bottom: 10px;
        }

        .badge {
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .badge.school {
            background: #f8f9fa;
            color: #6c757d;
            border: 1px solid #dee2e6;
        }

        .badge.version {
            background: linear-gradient(135deg, #000f3f, #5D4037);
            color: white;
        }

        .welcome-text {
            color: #666;
            font-size: 16px;
            margin-bottom: 35px;
        }

        .form-group {
            margin-bottom: 25px;
            position: relative;
        }

        .form-group input[type="email"],
        .form-group input[type="password"],
        .form-group input[type="text"] {
            width: 100%;
            padding: 18px 20px 18px 55px;
            border: 2px solid #e9ecef;
            border-radius: 12px;
            font-size: 16px;
            background: #f8f9fa;
            transition: all 0.3s ease;
            outline: none;
        }

        .form-group input:focus {
            border-color: #8B4513;
            background: white;
            box-shadow: 0 0 0 3px rgba(139, 69, 19, 0.1);
            transform: translateY(-2px);
        }

        .form-group .form-icon {
            position: absolute;
            left: 20px;
            top: 50%;
            transform: translateY(-50%);
            color: #9ca3af;
            font-size: 18px;
            transition: color 0.3s ease;
            pointer-events: none;
        }

        .form-group input:focus ~ .form-icon {
            color: #8B4513;
        }

        .form-label {
            position: absolute;
            left: 55px;
            top: 50%;
            transform: translateY(-50%);
            color: #9ca3af;
            font-size: 16px;
            pointer-events: none;
            transition: all 0.3s ease;
            background: transparent;
        }

        .form-group input:focus ~ .form-label,
        .form-group input:not(:placeholder-shown) ~ .form-label {
            top: -10px;
            left: 15px;
            font-size: 12px;
            color: #8B4513;
            background: white;
            padding: 0 8px;
            border-radius: 4px;
        }

        .error-message {
            color: #dc3545;
            font-size: 14px;
            margin-top: 8px;
            margin-left: 4px;
            display: block;
        }

        .remember-group {
            display: flex;
            align-items: center;
            margin-bottom: 25px;
        }

        .remember-group input[type="checkbox"] {
            width: 18px;
            height: 18px;
            border: 2px solid #e9ecef;
            border-radius: 4px;
            cursor: pointer;
            accent-color: #8B4513;
        }

        .remember-group label {
            margin-left: 10px;
            color: #666;
            font-size: 14px;
            cursor: pointer;
            user-select: none;
        }

        .form-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 25px;
            flex-wrap: wrap;
            gap: 15px;
        }

        .forgot-link {
            color: #000f3f;
            text-decoration: none;
            font-size: 14px;
            transition: all 0.3s ease;
        }

        .forgot-link:hover {
            color: #5D4037;
            text-decoration: underline;
        }

        .login-btn {
            padding: 14px 32px;
            background: linear-gradient(135deg, #000f3f 0%, #000f3f 100%);
            color: white;
            border: none;
            border-radius: 12px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .login-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 15px 35px rgba(139, 69, 19, 0.4);
        }

        .login-btn:active {
            transform: translateY(0);
        }

        .login-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
            transition: left 0.5s;
        }

        .login-btn:hover::before {
            left: 100%;
        }

        .language-selector {
            position: absolute;
            top: 20px;
            right: 20px;
            background: rgba(255, 255, 255, 0.9);
            border-radius: 25px;
            padding: 8px 15px;
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: #333;
            cursor: pointer;
            transition: all 0.3s ease;
            z-index: 10;
        }

        .language-selector:hover {
            background: white;
            transform: scale(1.05);
        }

        .footer-text {
            text-align: center;
            margin-top: 30px;
            color: #999;
            font-size: 14px;
        }

        .floating-shapes {
            position: absolute;
            width: 100%;
            height: 100%;
            overflow: hidden;
            z-index: 0;
        }

        .shape {
            position: absolute;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            animation: floatShapes 15s infinite linear;
        }

        .shape:nth-child(1) {
            width: 100px;
            height: 100px;
            top: 20%;
            left: 10%;
            animation-delay: -2s;
        }

        .shape:nth-child(2) {
            width: 60px;
            height: 60px;
            top: 60%;
            right: 10%;
            animation-delay: -8s;
        }

        .shape:nth-child(3) {
            width: 80px;
            height: 80px;
            bottom: 20%;
            left: 20%;
            animation-delay: -4s;
        }

        @keyframes floatShapes {
            0%, 100% { transform: translateY(0) rotate(0deg); }
            33% { transform: translateY(-20px) rotate(120deg); }
            66% { transform: translateY(20px) rotate(240deg); }
        }

        .alert {
            padding: 15px;
            border-radius: 8px;
            margin-bottom: 20px;
            font-size: 14px;
            animation: slideIn 0.5s ease-out;
        }

        .alert-success {
            background: #d4edda;
            border: 1px solid #c3e6cb;
            color: #155724;
        }

        @keyframes slideIn {
            from {
                opacity: 0;
                transform: translateX(-20px);
            }
            to {
                opacity: 1;
                transform: translateX(0);
            }
        }

        @media (max-width: 768px) {
            .login-container {
                margin: 20px;
                padding: 40px 30px;
                max-width: 100%;
            }
            
            .brand-text {
                font-size: 28px;
            }
            
            .language-selector {
                position: relative;
                top: auto;
                right: auto;
                margin: 0 auto 20px;
                width: fit-content;
            }

            .form-footer {
                flex-direction: column;
                align-items: stretch;
            }

            .login-btn {
                width: 100%;
            }

            .forgot-link {
                text-align: center;
            }
        }